2026-04-09Views：
1. According to its principle, it can be divided into volume type compressor and speed type compressor. Volume type is divided into: reciprocating compressor, rotary compressor; speed type compressor is divided into: axial compressor, centrifugal compressor and mixed flow compressor.
Nowadays, household refrigerators and air conditioner compressors are volumetric, which can be divided into reciprocating and rotary. Reciprocating compressors use pistons, cranks, connecting rod mechanisms or pistons, cranks, and sliding tube mechanisms, and rotary compressors are mostly rolling rotor compressors. In commercial air conditioning, and more centrifugal, scroll, screw type.
2. According to the application scope, it can be divided into low back pressure type, middle back pressure type and high back pressure type. Low back pressure type (evaporation temperature -35 ~ -15 ℃ ) , generally used in household refrigerators, food freezers, etc. Medium back pressure type (evaporation temperature -20~0 ℃ ) , generally used in cold drink cabinets, milk refrigerators, etc. High back pressure type (evaporation temperature -5~15 ℃ ) , generally used in room air conditioners, dehumidifiers, heat pumps, etc.
Its working principle:
it is mainly used in the air compressor to adjust the start and stop state of the air compressor. By adjusting the pressure in the air tank, the air compressor can stop and rest, which has a maintenance effect on the machine. In the air compressor factory debugging, according to customer needs to adjust to the specified pressure, and then set a pressure difference.
For example, the compressor starts to pump air into the air storage tank. When the pressure reaches 10kg, the air compressor stops or unloads. When the pressure reaches 7kg, the air compressor starts to start again. There is a pressure difference between them. This process can give the compressor a rest to protect the air compressor.
The compressor is directly driven by the electric motor to make the crankshaft produce rotary motion, and drive the connecting rod to make the piston produce reciprocating motion, causing the cylinder volume to change. Due to the change of the pressure in the cylinder, the air enters the cylinder through the air filter through the intake valve.
In the compression stroke, due to the reduction of the cylinder volume, the compressed air passes through the exhaust valve, passes through the exhaust pipe, and enters the air storage tank through the one-way valve. When the exhaust pressure reaches the rated pressure of 0.7MPa, it is controlled by the pressure switch to automatically stop. When the pressure of the gas tank drops to 0.5-0.6MPa, the pressure switch is automatically connected and started.
The relationship between air consumption and air compressor selection is very close. When selecting an air compressor, it is necessary to determine the required air compressor model and specifications according to the actual air consumption. If the gas consumption is large, you need to choose a large air compressor or multiple air compressors used in parallel to ensure
In the pursuit of high-quality compressed air in the industrial field, oil-free screw air compressor with its unique advantages of popular. In response to the question of "whether the outlet air of the oil-free screw air compressor contains oil", the water-lubricated screw air produced by Shanghai Granklin Group is empty.
The standard of industrial compressed air mainly includes the following aspects: 1. compressed air quality standard: humidity: usually requires the humidity of compressed air to be lower than 50%. Excessive humidity may cause condensation inside the equipment and affect the normal operation of the equipment. Oil content: compressed air
Oil-free rotary air compressor and oil-free screw air compressor have their own unique advantages and disadvantages, which is better depends on the actual application scenarios and needs. The advantages of oil-free rotary tooth air compressors include: oil-free, so there is no need to change the air compressor oil, free
Check the exhaust pressure of the air compressor, you can take different methods according to the type of air compressor. The following are the exhaust pressure viewing methods of the two main types of air compressors: 1. small air compressors small air compressors are usually mobile due to their small size, which is convenient for users to use
Standard for Moisture Content of Compressed Air in Production of Aseptic Preparations The Adaptability of Glinklin Water Lubricated Air Compressor Description 1. Core Requirements of Aseptic Preparations for Moisture Content of Compressed Air The production environment of aseptic preparations (such as injection, freeze-dried powder injection, etc.) shall be strictly followed
The safety precautions in the air compressor area mainly include the following aspects: 1. equipment installation and protection The air compressor must be installed stably, and the foundation should meet the design requirements to prevent the equipment from shaking or toppling during operation. In the air compressor
Air compressor air source cleanliness standards vary depending on the application and specific needs. The following are some general information and specific standard examples about air compressor air source cleanliness standards: 1. General information Definition of cleanliness: Air compressor air source cleanliness
As a general power source, compressed air is widely used in a large number of industries. The following is a summary of some major industries and their compressed air applications: 1. Textile, printing and dyeing, and clothing industries In the textile, printing and dyeing, and clothing industries, compressed air is mainly used
The service life of fixed pressure vessels is a problem involving multiple factors, and the specific age may vary depending on factors such as design specifications, materials, manufacturing processes, and use environments. In general, the design life of a fixed pressure vessel is usually 20 years.
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