Blog

Root vacuum pump working principle

• The working principle of the Root vacuum pump is to use a pair of blade-shaped rotors to synchronously and counter-rotate in the pump chamber, sucking the gas from the air inlet, compressing it and expelling it through the exhaust port to achieve the air extraction function. ‌
• The characteristic of this kind of pump is that there is a certain gap between the rotors and between the rotors and the inner wall of the pump casing, allowing high-speed operation.
• Roots vacuum pump is a kind of vacuum pump without internal compression. Usually the compression ratio is very low, so it needs to be used in conjunction with a backing pump to achieve efficient pumping.
• This kind of pump is widely used in the fields of petroleum, chemical industry, plastics, pesticides, steam turbine rotor dynamic balancing, aerospace space simulation and other fields. It is favored because of its fast start-up, low power consumption, low operation and maintenance costs and other characteristics. favor. ‌

What is the difference between Roots blower and vacuum pump?

• 1.Working principle
• Roots blower is a device that achieves gas flow through two intermeshing rotors. It mainly sucks gas from one air inlet through the rotating rotor, and then discharges it through the other air outlet. The vacuum pump removes gas by using some method to reduce the air pressure inside the closed container. There is a big difference in how the two work.
• 2.Use
• Roots blowers are generally used to pressurize and transport gas, increase gas density, increase gas flow rate, etc. Mainly used in various industrial fields, such as food processing, electronic equipment, chemical industry, etc. The vacuum pump is mainly used to remove the gas inside the container to create a vacuum environment. Common uses include manufacturing semiconductors, vacuum heat treatment, vacuum cooling, vacuum packaging, etc.
• 3.Performance
• Roots blowers excel in pumping speed, volumetric efficiency and differential pressure range, and are capable of continuous operation for long periods of time, delivering clean, oil-free gas, making them ideal for many industrial industries. The performance of vacuum pumps may vary depending on their design use and operating conditions.

What is the pressure of a Roots pump?

• The working pressure range of a Roots pump is usually between 0.1 and 1.0 MPa, but the specific working pressure range is determined based on the specific pump type, material, rotation speed and other factors. Some special Roots pumps, such as high vacuum Roots pumps and deep well pumps, etc., have different working pressure ranges.

What is a roots type vacuum pump?

• Roots vacuum pump is a high-performance vacuum equipment that uses the mutual meshing of Roots impellers (or double Roots impellers) to achieve the purpose of air suction and exhaust.
• The principle is as follows: when the Roots impeller rotates, the gas forms a vacuum between the impellers due to the small gap between the impellers.
• At the same time, the gas at the air inlet of the vacuum pump is compressed. After the rotation of the impeller, the gas is sequentially transported and gradually expanded to achieve the purpose of exhausting.
• Roots vacuum pumps are widely used in the semiconductor industry, chemical industry and other fields due to their advantages of being oil-free and pollution-free, with large suction capacity, simple structure and easy maintenance.

Roots type vacuum pump working principle

• The working principle of the Roots vacuum pump is to use a pair of blade-shaped rotors to synchronously and counter-rotate in the pump chamber, sucking the gas from the air inlet, compressing it and expelling it through the exhaust port to achieve the air extraction function. ‌
• The characteristic of this kind of pump is that there is a certain gap between the rotors and between the rotors and the inner wall of the pump casing, allowing high-speed operation.
• Roots vacuum pump is a kind of vacuum pump without internal compression. Usually the compression ratio is very low, so it needs to be used in conjunction with a backing pump to achieve efficient pumping.
• This kind of pump is widely used in the fields of petroleum, chemical industry, plastics, pesticides, steam turbine rotor dynamic balancing, aerospace space simulation and other fields. It is favored because of its fast start-up, low power consumption, low operation and maintenance costs and other characteristics. favor. ‌

What is the difference between Roots blower and vacuum pump?

• 1.Working principle
• Roots blower is a device that achieves gas flow through two intermeshing rotors. It mainly sucks gas from one air inlet through the rotating rotor, and then discharges it through the other air outlet. The vacuum pump removes gas by using some method to reduce the air pressure inside the closed container. There is a big difference in how the two work.
• 2.Use
• Roots blowers are generally used to pressurize and transport gas, increase gas density, increase gas flow rate, etc. Mainly used in various industrial fields, such as food processing, electronic equipment, chemical industry, etc. The vacuum pump is mainly used to remove the gas inside the container to create a vacuum environment. Common uses include manufacturing semiconductors, vacuum heat treatment, vacuum cooling, vacuum packaging, etc.
• 3.Performance
• Roots blowers excel in pumping speed, volumetric efficiency and differential pressure range, and are capable of continuous operation for long periods of time, delivering clean, oil-free gas, making them ideal for many industrial industries. The performance of vacuum pumps may vary depending on their design use and operating conditions.

Roots type vacuum pump manual

• Precautions for use
• 1.Usage environment: Please ensure that the Roots vacuum pump is installed in a dry, ventilated and dust-free environment, avoiding direct sunlight and high temperature.
• 2.Power supply requirements: Please check whether the power supply meets the requirements of the pump before use, and make sure it is well grounded to prevent electric shock.
• 3.Operating specifications: During operation, please follow the steps in the operation manual to avoid damage or safety accidents caused by improper operation.
• Routine maintenance:
• 1.Clean the pump body and exhaust pipe regularly to keep the interior clean and free of debris.
• 2.Regularly check the power cord and grounding conditions to ensure safety and reliability.
• 3.If any abnormality or failure is found, please stop the machine in time and contact professionals for repair.
• troubleshooting
• 1.Pump body heats up: It may be that the motor is overloaded or the heat dissipation is poor. It is recommended to check the power supply voltage and ventilation conditions.
• 2.The air pumping rate decreases: It may be due to rotor wear or air leakage in the air pumping pipe. It is recommended to check the rotor wear and repair the air leakage point.
• 3.Increased noise: It may be that the rotor is unbalanced or the bearings are worn. It is recommended to check the status of the bearings and make necessary replacements.
• Safety warning
• 1.Disassembly and repair by non-professionals is prohibited: Disassembly by non-professionals may cause damage to the pump body or safety accidents.
• 2.It is prohibited to use in flammable and explosive environments: Roots vacuum pumps should be kept away from flammable and explosive items to prevent danger.
• 3.It is prohibited to touch rotating parts when the pump is running: When the pump is running, rotating parts may cause injury, so please keep a safe distance.
• Maintenance suggestions
• 1.It is recommended to conduct an excellent inspection of the Roots vacuum pump every three months to ensure that all components are in good condition.
• 2.It is recommended to perform professional maintenance on the pump body at least once a year to extend the service life and improve performance.

roots blower price

Roots blower uses

‌Roots blowers‌ are widely used in many industries and fields, mainly including:

• ‌Sewage treatment‌: In the sewage treatment industry, Roots blowers are widely used in aeration, stirring, mixing and other aspects to ensure the smooth progress of the sewage treatment process.
• ‌Pneumatic conveying system‌: Roots blowers are used to transport feed, lime powder, monosodium glutamate, soybean skin, silica and other powdery materials, as well as grain suction machines or crane suction vacuum pumps in grain transportation to ensure the effectiveness of materials transmission.
• ‌Aquaculture‌: In aquaculture, Roots blowers use micropore aeration technology to oxygenate water quality and improve breeding efficiency.They are important equipment in the aquaculture industry.
• ‌Coal chemical industry‌: In the coal chemical industry, Roots blowers are used in sewage treatment and different processes, playing an important role in improving production efficiency and product quality‌.
• ‌Dust removal industry‌: Roots blowers are also used in the dust removal industry, such as desulfurization, denitrification, dust removal, etc., to ensure the effective treatment of industrial flue gas and waste gas.
• ‌Grain processing, flour mills, food factories‌: used in transportation, drying, cooling, dust and other links to ensure the smooth progress of the food processing process‌.
• ‌Paint and Coating Industry‌: Used for ventilation, dust removal and waste gas treatment to ensure the safety and health of the working environment.
• ‌Mining, quarrying, and mineral processing industries‌: used in emissions, exhaust, gas transportation, drying and other links to ensure environmental control and safety during the development of mineral resources‌.
• ‌Pharmaceutical Industry‌: In the pharmaceutical industry, Roots blowers are used in pharmaceutical processing, chemical reactions and other aspects, such as laboratory ventilation equipment, to ensure the safety and efficiency of the pharmaceutical production process‌.

Roots blower specifications

Who makes the best Roots blower?

• At present, Shandong Longgu Heavy Industry Machinery Co., Ltd.’s main products include LGSR three leaf Roots blower, LGSR-V Roots vacuum pump, LGSR-H high-pressure blower series, bipolar series high-pressure, gas pressurized explosion-proof, pneumatic conveying series fans, steam compressors, LGMJ dense series fans, rotary fans, centrifugal fans, etc.
• Our company’s products are widely used in industries such as sewage treatment, pneumatic conveying, vacuum packaging, grain processing, electricity, petrochemicals, cement, mining, and special gas pressurized conveying.
• We have close cooperative relationships with top domestic enterprises such as Sande Group, COFCO Group, and Shanshui Cement. Our company’s sales outlets and after-sales service centers are located throughout the country and exported to countries such as Malaysia, India, Kyrgyzstan, Nigeria, etc.

roots blower price : contact us

Roots vacuum blower working principle

• roots vacuum blower working principle
• The working principle of roots vacuum blower can be simply summarized into the following steps:
• 1.Suction stage: When the rotor rotates, the volume of the chamber gradually increases, forming a low-pressure area.This low-pressure area attracts outside air into the chamber.
• 2.Compression stage: As the rotor continues to rotate, the volume of the chamber gradually decreases.This process causes the air to become compressed, increasing its pressure.
• 3.Exhaust stage: When the volume of the chamber reaches the minimum value, the compressed air will be discharged from the chamber.At this time, the rotation of the rotor will increase the volume of the chamber again to prepare for the next round of suction.
• By repeating the above steps, the roots vacuum blower can continuously suck in, compress and discharge air.This working principle enables roots vacuum blowers to produce high-pressure, high-flow airflow.

Roots vacuum blower specifications

Roots vacuum blower uses

• ‌roots vacuum blowers‌ are widely used in many industries and fields, mainly including:
• ‌Sewage treatment‌: In the sewage treatment industry, roots vacuum blowers are widely used in aeration, stirring, mixing and other aspects to ensure the smooth progress of the sewage treatment process.
• ‌Pneumatic conveying system‌: roots vacuum blowers are used to transport feed, lime powder, monosodium glutamate, soybean skin, silica and other powdery materials, as well as grain suction machines or crane suction vacuum pumps in grain transportation to ensure the effectiveness of materials transmission.
• ‌Aquaculture‌: In aquaculture, roots vacuum blowers use micropore aeration technology to oxygenate water quality and improve breeding efficiency.They are important equipment in the aquaculture industry.
• ‌Coal chemical industry‌: In the coal chemical industry, roots vacuum blowers are used in sewage treatment and different processes, playing an important role in improving production efficiency and product quality‌.
• ‌Dust removal industry‌: roots vacuum blowers are also used in the dust removal industry, such as desulfurization, denitrification, dust removal, etc., to ensure the effective treatment of industrial flue gas and waste gas.
• ‌Grain processing, flour mills, food factories‌: used in transportation, drying, cooling, dust and other links to ensure the smooth progress of the food processing process‌.
• ‌Paint and Coating Industry‌: Used for ventilation, dust removal and waste gas treatment to ensure the safety and health of the working environment.
• ‌Mining, quarrying, and mineral processing industries‌: used in emissions, exhaust, gas transportation, drying and other links to ensure environmental control and safety during the development of mineral resources‌.
• ‌Pharmaceutical Industry‌: In the pharmaceutical industry, roots vacuum blowers are used in pharmaceutical processing, chemical reactions and other aspects, such as laboratory ventilation equipment, to ensure the safety and efficiency of the pharmaceutical production process‌.

Roots vacuum blower diagram

Roots blower pump is a positive displacement fan, also known as roots blower pump. ‌ It uses two blade-shaped rotors to make relative motion in the cylinder to compress and transport gas. This working principle makes the roots blower pump simple in structure and easy to manufacture. It is widely used in gas transport and pressurization systems in low-pressure situations. It can also be used Used as a vacuum pump. The rotor of a roots blower pump usually adopts an involute or epicycloid envelope design to ensure that the rotor maintains a very small gap during rotation, thereby reducing gas leakage. ‌

Roots blower pump type

• 1.Single-stage Roots blower
• Single-stage Roots blower is also called single-stage screw blower, which is a Roots blower that uses a single screw as the compression element. The single-stage Roots blower has a simple structure and reliable operation. It is a widely used Roots blower. Usually suitable for low pressure and low temperature applications, such as sewage treatment, food processing, etc.
• 2.Multi-stage Roots blower
• Multi-stage Roots blowers are composed of two or more screws, mainly to increase the compression ratio of the blower. Since the single-stage compression ratio of the Roots blower is low, if a higher compression ratio is required, a multi-stage Roots blower needs to be used. Multi-stage Roots blowers are usually suitable for high-pressure and high-temperature applications, such as water treatment, metallurgy, etc.
• Internal compression Roots blower
  The internal compression Roots blower installs two screws in a cavity and compresses the gas to the required pressure by rotating the two screws in the same direction. The internal compression Roots blower operates smoothly, has low noise and high efficiency. Moreover, the internal compression Roots blower can adjust the speed according to changes in flow rate to maintain high efficiency for a longer period of time.
• External compression Roots blower
  The external compression Roots blower installs two screws in independent cavities. Through the counter-rotation of the two screws, the gas is compressed from the suction end to the exhaust end. Compared with the internal compression Roots blower, the external compression Roots blower has a more complex structure, but also has a relatively high compression ratio. External compression Roots blowers are usually suitable for high-precision applications that require high compression ratio and flow stability.

How does a blower pump work?

• root blower working principle
• The working principle of Roots blower can be simply summarized into the following steps:
• 1.Suction stage: When the rotor rotates, the volume of the chamber gradually increases, forming a low-pressure area.This low-pressure area attracts outside air into the chamber.
• 2.Compression stage: As the rotor continues to rotate, the volume of the chamber gradually decreases.This process causes the air to become compressed, increasing its pressure.
• 3.Exhaust stage: When the volume of the chamber reaches the minimum value, the compressed air will be discharged from the chamber.At this time, the rotation of the rotor will increase the volume of the chamber again to prepare for the next round of suction.
• By repeating the above steps, the Roots blower can continuously suck in, compress and discharge air.This working principle enables Roots blowers to produce high-pressure, high-flow airflow.

Root blower specification

Roots blower pump manual

• Usage requirements:
• (1) The inlet air temperature is not greater than 40°C
• (2) The content of solid particles in the gas shall not be greater than 100 mg/m2, and the largest particle shall not be greater than half of the assembly gap;
• (3) The bearing temperature does not exceed 95°C;
• (4) The lubricating oil temperature does not exceed 65°C;
• (5) The opening pressure range specified on the sign shall not be exceeded.

Preparations before startup:

• (1) Check the installation quality of each fastener and positioning pin;
• (2) Check the installation quality of intake and exhaust pipes and valves;
• (3) Check whether the base of the unit is fully padded and whether the anchor bolts are tightened;
• (4) Inject the specified brand of lubricating oil into the gear box to the driving side of the oil mark position and inject the specified grease in sufficient quantity;
• (5) Open all the blower inlet and exhaust valves, turn the rotor, and listen carefully for any abnormal noises from various parts;
• (6) For fans with water cooling requirements, the water temperature should not be higher than 25°C.

No-load test operation of the fan:

• (1) Newly installed or overhauled fans should undergo no-load test operation;
• (2) No-load operation means putting into operation with the intake and exhaust valves fully open;
• (3) There is no abnormal smell, smoke, collision or friction sound, and the radial vibration of the bearing part is not greater than 6.3mm/s;
• (4) Run with no load for about 30 minutes. If the situation is normal, it can be put into operation with load. If abnormal operation is found, stop the machine immediately for inspection. After troubleshooting, it still needs to run with no load.

Continuous operation under normal load:

• (1) It is required to gradually and slowly increase the voltage and bring the load up to the rated load. It is not allowed to adjust to the rated load at one time;
• (2) Fan (during normal operation, it is strictly forbidden to completely close the engine and exhaust valves; it is also not allowed to operate overloaded;
• (3) Due to the characteristics of the fan, it is not allowed to directly backflow the exhaust gas for a long time, so cooling measures must be taken;
• (4) The blower should not stop suddenly when under full load to avoid damage to parts.

Maintenance and overhaul:
(1) Check the tightening of each part and whether the positioning pin is loose;
(2) Check the machine body frequently for oil leakage;
(3) Pay attention to whether the lubrication is normal, pay attention to the amount of lubricating grease, always listen to the operation of the fan to see if there is any noise, and pay attention to whether the unit is operating under specified working conditions;
(4) Lubricating oil (grease): The lubricating oil is medium-load industrial gear oil (grade 220, kinematic viscosity 198~242mm2/s40℃, flash point ≥200℃); the grease is butter (synthetic lithium-based grease penetration, Dropping point ≥190℃), after 200 hours of operation, the oil and grease must be changed for the first time, and for the second time after one month of operation. In the future, it should be replaced according to the usage environment and oil (grease) quality. It is recommended to replace it every three months;
(5) Check the air inlet gas filter frequently and clean or replace the filter in time;
(6) The overload of the blower is sometimes not displayed immediately, so pay attention to the increase trend of the inlet and exhaust pressure, bearing temperature and motor current to judge whether the fan is operating normally;
(7) Before disassembling the machine, the dimensions of the machine should be measured, recorded, and marked on the parts to ensure that the original coordination requirements are maintained after assembly;
(8) After a new machine or overhaul, the fuel tank should be cleaned and put into operation according to the usage procedures. It is recommended to replace all lubricating grease after 8 hours of operation.

Roots blower uses/roots blower for sale

• In the environmental protection industry, it is used in aerobic tank aeration, sedimentation tank mixing, ozone generator (used as a gas source for high-concentration ozone generators), garbage collection, vacuum cleaner trucks, and wet flue gas desulfurization in sewage treatment. wait. Sewage treatment is mainly used for purification and sediment mixing in water treatment plants. Desulfurization and oxidation is the process of transporting air to the desulfurization tower to accelerate the oxidation of ammonium sulfite into ammonium sulfate. Sewage treatment and flue gas desulfurization are generally done by environmental protection projects and environmental equipment companies responsible for desulfurization, denitrification and sewage treatment.
• In the aquaculture industry, it is used to provide oxygen in the water of fish ponds for various fish and crabs, and is also used in aquariums and live fish tanks. (Various large-scale farming of Penaeus vannamei, sea cucumbers, fish, etc.)
• In the pneumatic conveying industry, it is used for grain conveying and dilute phase conveying of powder and granular materials. The fan is used as a low-pressure air source in the form of gas conveying to transport wheat, calcium powder, fly ash, coal dropped from the unloader. Powder, baking soda, cement, flour, bauxite, alkali powder, ammonium phosphate, potassium chloride and other materials. Granular and powdery raw materials such as polyethylene, polypropylene, PE, PP, and urea are transported to the terminal receiving bin. (Inhalation type can also be used). Central feeding system used in injection molding, blister molding, and rotational molding industries to transport raw materials to different equipment. Used in vacuum feeding system and used as negative pressure suction.
• In the mining and metallurgical industries, it is used for coal preparation and flotation by jigging method and air dense medium method. Underground gas extraction, boiling furnace air supply, iron ore particle transportation, ironmaking furnace air supply, metallurgical furnace slag suction, coal washing machine, flotation machine supporting, etc.
• In the building materials industry, it provides blasting for cement vertical kilns, feeds coal to cement rotary kilns, homogenizes cement raw materials, homogenizes raw materials with coal and homogenizes cement. Atomization of fuel in ceramic kilns, magnesia kilns and glass tank furnaces, adsorption of flat glass, molding of glass products and light bulbs, and dehydration of calcium weight plates.

Roots blower manufacturer

At present, Shandong Longgu Heavy Industry Machinery Co., Ltd.’s main products include LGSR three leaf Roots blower, LGSR-V Roots vacuum pump, LGSR-H high-pressure blower series, bipolar series high-pressure, gas pressurized explosion-proof, pneumatic conveying series fans, steam compressors, LGMJ dense series fans, rotary fans, centrifugal fans, etc.

• Our company’s products are widely used in industries such as sewage treatment, pneumatic conveying, vacuum packaging, grain processing, electricity, petrochemicals, cement, mining, and special gas pressurized conveying.
• We have close cooperative relationships with top domestic enterprises such as Sande Group, COFCO Group, and Shanshui Cement. Our company’s sales outlets and after-sales service centers are located throughout the country and exported to countries such as Malaysia, India, Kyrgyzstan, Nigeria, etc.

What are the disadvantages of roots blower?

roots blower for sale

• Loud noise
  Roots blower is a positive displacement blower that works by compressing gas to transport gas. Due to this working method, the Roots blower will produce a certain amount of noise during operation. For large equipment, this noise will have a certain impact on the environment.
• Heavy maintenance workload
  As a kind of mechanical equipment, Roots blower requires regular maintenance and upkeep during use. Due to the characteristics of its structure and working principle, the maintenance work of Roots blower is relatively tedious and complicated. This will increase the company’s operating costs and the labor intensity of maintenance personnel.
• Low efficiency
  Compared with other types of fans, such as centrifugal fans or axial flow fans, the efficiency of Roots blowers is relatively low. This means that when driven by a motor of the same power, the Roots blower may need to consume more electrical energy to produce the same air volume. This not only increases the company’s energy costs, but also affects the operating results and service life of the equipment.
• roots blower for sale

Roots pump working principle

• The working principle of roots pump can be simply summarized into the following steps:
• 1.Suction stage: When the rotor rotates, the volume of the chamber gradually increases, forming a low-pressure area.This low-pressure area attracts outside air into the chamber.
• 2.Compression stage: As the rotor continues to rotate, the volume of the chamber gradually decreases.This process causes the air to become compressed, increasing its pressure.
• 3.Exhaust stage: When the volume of the chamber reaches the minimum value, the compressed air will be discharged from the chamber.At this time, the rotation of the rotor will increase the volume of the chamber again to prepare for the next round of suction.
• By repeating the above steps, the roots pump can continuously suck in, compress and discharge air.This working principle enables roots pumps to produce high-pressure, high-flow airflow.

Roots pump uses

• In the environmental protection industry, it is used in aerobic tank aeration, sedimentation tank mixing, ozone generator (used as a gas source for high-concentration ozone generators), garbage collection, vacuum cleaner trucks, and wet flue gas desulfurization in sewage treatment. wait. Sewage treatment is mainly used for purification and sediment mixing in water treatment plants. Desulfurization and oxidation is the process of transporting air to the desulfurization tower to accelerate the oxidation of ammonium sulfite into ammonium sulfate. Sewage treatment and flue gas desulfurization are generally done by environmental protection projects and environmental equipment companies responsible for desulfurization, denitrification and sewage treatment.
• In the aquaculture industry, it is used to provide oxygen in the water of fish ponds for various fish and crabs, and is also used in aquariums and live fish tanks. (Various large-scale farming of Penaeus vannamei, sea cucumbers, fish, etc.)
• In the pneumatic conveying industry, it is used for grain conveying and dilute phase conveying of powder and granular materials. The fan is used as a low-pressure air source in the form of gas conveying to transport wheat, calcium powder, fly ash, coal dropped from the unloader. Powder, baking soda, cement, flour, bauxite, alkali powder, ammonium phosphate, potassium chloride and other materials. Granular and powdery raw materials such as polyethylene, polypropylene, PE, PP, and urea are transported to the terminal receiving bin. (Inhalation type can also be used). Central feeding system used in injection molding, blister molding, and rotational molding industries to transport raw materials to different equipment. Used in vacuum feeding system and used as negative pressure suction.
• In the mining and metallurgical industries, it is used for coal preparation and flotation by jigging method and air dense medium method. Underground gas extraction, boiling furnace air supply, iron ore particle transportation, ironmaking furnace air supply, metallurgical furnace slag suction, coal washing machine, flotation machine supporting, etc.
• In the building materials industry, it provides blasting for cement vertical kilns, feeds coal to cement rotary kilns, homogenizes cement raw materials, homogenizes raw materials with coal and homogenizes cement. Atomization of fuel in ceramic kilns, magnesia kilns and glass tank furnaces, adsorption of flat glass, molding of glass products and light bulbs, and dehydration of calcium weight plates.

Roots pump pressure range

• According to different usage requirements, the pressure of the roots pump can be adjusted between 9.8kpa and 200kpa.Within this pressure range, the roots pump can work normally and meet various process requirements.Specifically, the pressure range of roots pumps includes:
• ‌Low pressure range‌: The pressure is lower than 58.8kpa, including 9.8kpa to 58.8kpa.This type of fan usually uses air cooling, and is mostly designed with a single oil tank.
• ‌Medium pressure range‌: The pressure is between 58.8kpa and 98kpa.This type of fan requires water cooling, and most of them are designed with double oil tanks.
• ‌High pressure range‌: When the pressure exceeds 98kpa, especially when it exceeds 140kpa, double-stage pressure boosting technology is required to ensure stable operation of the fan under high pressure.

What type of pump is a roots type blower?

• roots type blower is a gas compressor with Roots gear as its main working component. There are two gears running inside the device, and the gap between them is used to extract air or other gases and output them. roots type blower usually consists of impeller, Roots gear, main shaft, cylinder, transmission mechanism, motor and other parts. Among them, the Roots gear is a key component of the blower. It consists of two gears meshing with each other. The gears have a unique shape and can form a series of air accumulation chambers and sealing areas. The support device of the main shaft and Roots gear is installed in the cylinder, which not only ensures the safe operation of the machine, but also reduces the vibration and noise of the blower.

roots type blower uses

‌roots type blowers‌ are widely used in many industries and fields, mainly including:

• ‌Sewage treatment‌: In the sewage treatment industry, roots type blowers are widely used in aeration, stirring, mixing and other aspects to ensure the smooth progress of the sewage treatment process.
• ‌Pneumatic conveying system‌: roots blowers are used to transport feed, lime powder, monosodium glutamate, soybean skin, silica and other powdery materials, as well as grain suction machines or crane suction vacuum pumps in grain transportation to ensure the effectiveness of materials transmission.
• ‌Aquaculture‌: In aquaculture, roots blowers use micropore aeration technology to oxygenate water quality and improve breeding efficiency.They are important equipment in the aquaculture industry.
• ‌Coal chemical industry‌: In the coal chemical industry, roots blowers are used in sewage treatment and different processes, playing an important role in improving production efficiency and product quality‌.
• ‌Dust removal industry‌: roots blowers are also used in the dust removal industry, such as desulfurization, denitrification, dust removal, etc., to ensure the effective treatment of industrial flue gas and waste gas.
• ‌Grain processing, flour mills, food factories‌: used in transportation, drying, cooling, dust and other links to ensure the smooth progress of the food processing process‌.
• ‌Paint and Coating Industry‌: Used for ventilation, dust removal and waste gas treatment to ensure the safety and health of the working environment.
• ‌Mining, quarrying, and mineral processing industries‌: used in emissions, exhaust, gas transportation, drying and other links to ensure environmental control and safety during the development of mineral resources‌.
• ‌Pharmaceutical Industry‌: In the pharmaceutical industry, roots blowers are used in pharmaceutical processing, chemical reactions and other aspects, such as laboratory ventilation equipment, to ensure the safety and efficiency of the pharmaceutical production process‌.

roots type blower diagram

Roots type blower pressure range

• According to different usage requirements, the pressure of the roots blower can be adjusted between 9.8kpa and 200kpa.Within this pressure range, the roots blower can work normally and meet various process requirements.Specifically, the pressure range of roots blowers includes:
• ‌Low pressure range‌: The pressure is lower than 58.8kpa, including 9.8kpa to 58.8kpa.This type of fan usually uses air cooling, and is mostly designed with a single oil tank.
• ‌Medium pressure range‌: The pressure is between 58.8kpa and 98kpa.This type of fan requires water cooling, and most of them are designed with double oil tanks.
• ‌High pressure range‌: When the pressure exceeds 98kpa, especially when it exceeds 140kpa, double-stage pressure boosting technology is required to ensure stable operation of the fan under high pressure.

Roots type blower specifications

What are the different types of roots type blowers?

According to different classification standards, roots blowers can be divided into the following categories:

• 1.Single-stage roots type blower and multi-stage roots blower: Depending on the number of impellers, roots blower can be divided into two types: single-stage and multi-stage. Single-stage roots type blowers have only one impeller and are suitable for low pressure and medium flow applications, while multi-stage roots type blowers have multiple impellers and are suitable for high pressure and large flow applications.
• 2.Fixed roots blower and variable frequency speed-adjustable roots blower: Depending on the driving method, roots type blowers can be divided into two types: fixed type and variable frequency speed-adjustable. The fixed speed of the roots blower is fixed, and the output air volume and pressure cannot be adjusted; while the variable frequency speed-regulated roots blower adjusts the motor speed through the frequency converter to achieve precise control of the air volume and pressure.
• 3.Dry roots type blower and wet roots blower: Depending on the working environment, roots type blowers can be divided into two types: dry type and wet type. Dry roots type blowers are suitable for processing dry gases, such as air, nitrogen, etc.; while wet roots type blowers are suitable for processing gases that are moist or contain liquid particles, such as aeration systems in sewage treatment.
• 4.Standard roots blower and customized roots blower: According to different customer needs, roots type blower can be divided into two types: standard type and customized type. Standard roots type blowers are manufactured according to general specifications and designs and are suitable for general application scenarios; while customized roots type blowers are designed and manufactured according to specific needs to meet special process requirements.

roots blower diagram

Structure of Roots blower

• Roots blower consists of five parts: casing, wall board, impeller, oil tank and muffler.
• Casing: mainly plays the role of supporting (wall boards, impellers, mufflers) and fixing.
• casing
• Wall board: mainly used to connect the casing and impeller, support the rotation of the impeller, and provide end-face sealing.
• Impeller: It is the rotating part of the Roots blower, divided into two blades and three blades. However, due to the many advantages of three blades, such as smaller air pulsation, lower noise, and smoother operation than two blades, it has gradually replaced the two-blade Roots blower.
• impeller
• Oil tank: Mainly used to store lubricating oil used to lubricate gears and bearings.
• Oil tank
• Muffler: used to reduce the noise caused by air flow pulsation when the Roots blower enters and exits.

roots blower diagram

How does a Roots blower work?

• root blower working principle
• The working principle of Roots blower can be simply summarized into the following steps:
• 1.Suction stage: When the rotor rotates, the volume of the chamber gradually increases, forming a low-pressure area.This low-pressure area attracts outside air into the chamber.
• 2.Compression stage: As the rotor continues to rotate, the volume of the chamber gradually decreases.This process causes the air to become compressed, increasing its pressure.
• 3.Exhaust stage: When the volume of the chamber reaches the minimum value, the compressed air will be discharged from the chamber.At this time, the rotation of the rotor will increase the volume of the chamber again to prepare for the next round of suction.
• By repeating the above steps, the Roots blower can continuously suck in, compress and discharge air.This working principle enables Roots blowers to produce high-pressure, high-flow airflow.