How does a screw air compressor work?

The suction port of the screw type inlet side must be designed so that the compression chamber can fully suction, and the screw compressor does not have an intake and exhaust valve group, and the air intake only depends on the opening and closing adjustment of a regulating valve, when the rotor rotates, the groove space of the main and auxiliary rotor is the largest when it is turned to the inlet end wall opening, the groove space of the rotor is communicated with the free air of the air intake, because the air of the groove is fully discharged when the exhaust is completed, the groove is in a vacuum state, and when it is turned to the air intake, the outside air is inhaled , which flows axially into the groove of the main and auxiliary rotors. When the air fills the entire groove, the end face of the inlet side of the rotor is turned away from the air inlet of the casing, and the air between the grooves is sealed.

Closure and conveying process:

At the end of the inhalation of the main and auxiliary rotors, the tooth peaks of the main and auxiliary rotors are closed with the casing, and the air is closed in the groove and no longer flows out, that is, [sealing process]. The two rotors continue to rotate, and their tooth peaks and grooves coincide at the suction end, and the anastomosis surface gradually moves towards the exhaust end, which is the [conveying process].

Compression & Injection Process:

During the conveying process, the meshing surface gradually moves to the exhaust end, that is, the groove between the meshing surface and the exhaust port gradually decreases, and the gas in the groove is gradually compressed, and the pressure increases, which is the [compression process]. At the same time, the lubricating oil is also sprayed into the compression chamber and mixed with air due to the effect of pressure difference.

Exhaust process: when the meshing end face of the rotor is turned to communicate with the exhaust of the casing, (at this time the compressed gas pressure is the highest) the compressed gas begins to be discharged, until the meshing surface of the tooth peak and the tooth groove moves to the exhaust end face, at this time, the groove space between the meshing surface of the two rotors and the exhaust port of the casing is zero, that is, it is completed (exhaust process), and at the same time, the length of the groove between the rotor meshing surface and the air inlet of the casing reaches the longest, and the suction process is carried out again.

The evaporator is a very important part of the four major parts of refrigeration, and the low-temperature condensate gas passes through the evaporator to exchange heat with the outside air, liquefiing and absorbing heat to achieve the effect of refrigeration.

The evaporator consists of two parts: a heating chamber and an evaporation chamber. The heating chamber provides the heat required for evaporation to the liquid, which causes the liquid to boil and vaporize; The evaporation chamber completely separates the gas-liquid phases. The vapor generated in the heating chamber carries a large amount of liquid foam, which is separated from the vapor by its own agglomeration or mist eliminator when it reaches the evaporation chamber in a large space.

Usually the mist eliminator is located on top of the evaporation chamber.

The evaporator is divided into three types according to the operating pressure: atmospheric pressure, pressurization and decompression. According to the movement of the solution in the evaporator, it is divided into: Circulating type.

The boiling solution passes through the heating surface many times in the heating chamber, such as ** circulating tube type, hanging basket type, external heating type, Levin type and forced circulation type. One-way type. The boiling solution passes through the heating surface at one time in the heating chamber without circulating flow, and the concentrate is discharged, such as rising film type, falling film type, stirred film type and centrifugal film type.

Direct contact type. The heating medium is in direct contact with the solution for heat transfer, such as an immersion combustion evaporator. In the process of operation, the evaporation device consumes a large amount of heating steam, and in order to save heating steam, multi-effect evaporation device and vapor recompression evaporator can be used.

Evaporators are widely used in chemical, light industry and other sectors.

The working principle of the screw compressor is not a problem to understand the maintenance.

Shanghai Denier air compressor is good, like this kind of professional problems, you can find them to understand.

The principle and structure diagram of the screw air compressor are as follows:

The working principle of the screw air compressor is that when the screw rotates in the shell, the screw and the teeth of the housing mesh with each other, and the air is sucked in from the air inlet, and at the same time, due to the rotation of the teeth, the inhaled oil and gas are sealed and transported to the air outlet. During transportation, the cogging gap gradually decreases, and the oil and gas are compressed.

When the cogging surface is rotated to the shell exhaust port, the high-pressure oil-gas mixture is discharged from the body, and the working process is divided into four processes: suction, sealing and conveying, compression and exhaust.

The inverter can change the displacement by changing the speed of the screw rotor. When the air consumption changes, the inverter changes the speed to adjust the displacement of the air compressor, so as to achieve the purpose of constant exhaust pressure and energy saving. The structural principle of a single screw air compressor is shown in the figure.

1. Inhalation process:

Screw type inlet side suction port, must be designed so that the compression chamber can be fully suctioned, and the screw compressor does not have air intake and exhaust valve group, air intake only by the opening and closing of a regulating valve adjustment, when the rotor rotates, the groove space of the main and auxiliary rotor is turned to the inlet end wall opening, its space is the largest, at this time the rotor groove space and the free air of the air inlet are communicated, because the air of the groove is fully discharged when exhausting, at the end of exhaust, the groove is in a vacuum state, when turning to the air intake, the outside air is inhaled, which flows axially into the groove of the main and auxiliary rotors. When the air fills the entire groove, the end face of the inlet side of the rotor is turned away from the air inlet of the casing, and the air between the grooves is sealed.

2. Closure and conveying process:

At the end of the suction of the main and auxiliary rotors, the tooth peaks of the main and auxiliary rotors are closed with the casing, and the air is closed in the groove and no longer flows out, that is, [sealing process]. The two rotors continue to rotate, and their tooth peaks and grooves coincide at the suction end, and the anastomosis surface gradually moves towards the exhaust end.

3. Compression and fuel injection process

During the conveying process, the meshing surface gradually moves to the exhaust end, that is, the groove between the meshing surface and the exhaust port gradually decreases, and the gas in the groove is gradually compressed, and the pressure increases, which is the [compression process]. At the same time of compression, the lubricating oil is also sprayed into the compression chamber and mixed with the room air due to the effect of pressure difference.

4. Exhaust process:

When the meshing end face of the rotor is turned to communicate with the exhaust of the casing, (the pressure of the compressed gas is the highest at this time) the compressed gas begins to be discharged, until the meshing surface of the tooth peak and the tooth groove moves to the exhaust end face, at this time, the groove space between the meshing surface of the two rotors and the exhaust port of the casing is zero, that is, it is completed (exhaust process), and at the same time, the length of the groove between the rotor meshing surface and the air inlet of the casing reaches the longest, and the suction process is carried out again.

The working principle of Jin Zhilun screw air compressor is 1. Suction process: the motor drives the rotor, and when the groove space of the main and slave rotor is turned to the opening of the inlet end wall, the space is large, and the outside air is filled with it, and when the end face of the inlet side of the rotor is turned away from the air inlet of the shell, the air between the grooves is enclosed between the main and slave rotors and the casing to complete the suction process. 2. Compression process:

At the end of the inhalation, the closed volume formed by the peaks of the main and slave rotor teeth and the casing decreases as the rotor angle changes, and moves in a spiral pattern, which is the "compression process". 3. Compressed gas and oil injection process: in the process of transportation, the volume is continuously reduced, the gas is constantly compressed, the pressure is increased, the temperature is increased, and at the same time, the lubrication that becomes mist due to the difference in air pressure is sprayed into the compression chamber, so as to achieve the effect of compression, reducing temperature sealing and lubrication.

4. Exhaust process: When the closed tooth peak of the rotor rotates to meet the exhaust port of the casing, the compressed air begins to be discharged until the anastomosis surface of the tooth peak and the tooth groove moves to the exhaust end face, and the tooth groove space is zero at this time, that is, the exhaust process is completed. At the same time, the other pair of grooves of the main and slave rotors has been rotated to the intake end, creating the maximum space and starting the suction process, thus starting a new compression cycle.

Summary. Screw air compressor function.

Hello dear, the main uses of screw air compressor are:

Pipeline natural gas transportation: such as coal, natural gas, transportation, etc., this use may not be understood by most people, but it is inseparable from our lives. Tire inflation, most people are familiar with it, and the air compressor also has an irreplaceable role in tire inflation.

What is the main purpose of screw air compressor? - Mains air compressors

Power**: The common use of screw air compressor is as power**, which is widely used in pharmaceutical, textile, food and beverage, industrial automation and other fields. Compared with other energy sources, compressed air has the advantages of being clean, pollution-free and easy to control.

Common traditional aerodynamic applications: pneumatic tools, pickaxes, pneumatic sandblasting, rock drills, and the use of compressed air to blow weft yarns instead of shuttles in air-jet looms, blow moulders, painting, etc.

Gas separation: In the artificial refrigeration industry, gas can be compressed and cooled by air compressors, expanded and liquefied, so as to achieve the effect of refrigeration and air conditioning; In addition, for mixed gases, the air compressor can also separate the gases of various components through the separation device to obtain various concentrations of gases. Hope it helps.

Screw air compressor function.

The main uses of screw air compressors are: pipeline natural gas transportation: such as coal, natural gas, transportation, etc., this use may not be understood by most people, but it is inseparable from our lives.

Tire inflation, most people are more familiar with Chang, air compressor also has an irreplaceable role in tire inflation. What is the main purpose of the screw type empty finger destroying press? - Mains Air Compressor Power**:

The common use of screw air compressor is as power**, which is widely used in pharmaceutical, textile, food and beverage, industrial automation and other fields. Compared with other energy sources, compressed air has the advantages of being clean, pollution-free and easy to control. Common Traditional Aerodynamic Applications:

Pneumatic tools, picks, pneumatic sandblasting, rock drills, such as compressed air blowing weft yarns in air-jet looms instead of shuttles, blow moulders, lead-resistant painting, etc. Gas separation: In the artificial refrigeration industry, gas can be compressed and cooled by air compressors, expanded and liquefied, so as to achieve the effect of refrigeration and air conditioning; In addition, for mixed gases, the air compressor can also separate the gases of various components through the separation device to obtain various concentrations of gases.

Air storage tank function.

Air storage tanks are widely used in air conditioners, boilers, water heaters, frequency conversion, and constant pressure water supply equipment, which play a role in buffering system pressure fluctuations, ensuring the smooth gas consumption of the system, and reducing the air flow pulsation, thereby reducing the pressure fluctuations of the system, and making the compressed air smoothly pass through the compressed air purification system, so as to fully remove the impurities of the oil and water and reduce the load of the subsequent oxygen and nitrogen separation device. When the water pressure in the system changes slightly, it can ensure that the water pressure of the system is stable and prudent, and the water pump will not be opened frequently due to the change of pressure.

Screw gas compressor is a kind of power bumper device that converts mechanical energy into gas pressure energy, and is often used to provide gas power for pneumatic tools. The main casing of the screw gas screw compressor has fuel injection holes, and by virtue of its own pressure difference, the oil is sprayed into the compression chamber during the compression process to cool the gas, seal the gap between the parts, and play the role of vibration absorption, noise reduction and lubrication. Screw Gas Compressor Applications:

In petrochemical, drilling, metallurgical dismantling and other industries, it is also commonly used in pressure oxygen, hydrogen, ammonia, natural gas, coke oven gas, inert gas and other media.

Summary. Performance characteristics: 1. High reliability, few parts, no wearing parts, so it runs reliably and has a long life, and the design life of the main head of the general screw machine is up to 30 years.

2. Convenient operation and maintenance, high degree of automation, operators do not need to go through long-term professional training, to achieve unattended operation. 3. The power balance is good, there is no unbalanced inertia force, the machine can work smoothly at high speed, and realize the operation without foundation. 4. Strong adaptability, with the characteristics of forced gas transmission, the volumetric flow is almost not affected by the exhaust pressure, and can maintain high efficiency in a wide range of working conditions, and is suitable for a variety of working conditions without any changes to the compressor structure, so it is easy to finalize mass production.

5. Multi-phase mixed transportation, there is actually a gap between the tooth surfaces of the rotor, so it can resist liquid impact, and can pressure gases containing liquids, dusty gases, and easily polymerized gases. 6. The flow adjustment of the slide valve does not need to be returned, which can effectively reduce energy consumption.

Hello, dear. The function of the screw air compressor is mainly used in the field of air power and force, and is used to drive various wind fiber moving tools, due to the development of oil and gas separation and gas purification technology, it is also increasingly used in applications with very high requirements for air quality, such as:

Industries such as food, medicine and cotton spinning occupy many markets that were originally oil-free air compressors.

Hello, dear. The function of the screw air compressor is mainly used in the field of air power and force, and is used to drive various wind fiber moving tools, due to the development of oil and gas separation and gas purification technology, it is also increasingly used in applications with very high requirements for air quality, such as:

Industries such as food, medicine and cotton spinning occupy many markets that were originally oil-free air compressors.

Performance characteristics: 1. High reliability, few parts, no wearing parts, so it runs reliably and has a long life, and the design life of the main head of the general screw machine is up to 30 years. 2. Convenient operation and maintenance, high degree of automation, operators do not need to go through long-term professional training, to achieve unattended operation.

3. The power balance is good, there is no unbalanced inertia force, and the machine orange weighing instrument can work smoothly at high speed and realize the operation without foundation. 4. Strong adaptability, with the characteristics of forced gas transmission, the volumetric flow is almost not affected by the exhaust pressure, and can maintain high efficiency in a wide range of working conditions, and is suitable for a variety of working conditions without any changes to the compressor structure, so it is easy to finalize mass production. 5. Multi-phase mixed transportation, there is actually a gap between the tooth surfaces of the rotor, so it can resist liquid chaos and good hit, and can pressure gases containing liquids, dusty gases, and easily polymerized gases.

6. The flow adjustment of the slide valve does not need to be returned, which can effectively reduce energy consumption.