The classification of piston compressor_The advantages and disadvantages of piston compressor Classification of piston compressor

The classification of piston compressor_The advantages and disadvantages of piston compressor

Classification of piston compressor 　　 (1) Classification according to the position of the cylinder centerline Vertical compressor: The center line of the cylinder is perpendicular to the ground. Horizontal compressor: The center line of the cylinder is parallel to the ground, and the cylinder is only arranged on one side of the fuselage. 　　 Opposed compressor: The center line of the cylinder is parallel to the ground, and the cylinders are arranged on both sides of the fuselage. (If the pistons move relative to each other, it is also called symmetrical balance type) . 　　Angle type compressor: the center line of the cylinder is at a certain angle, and the shape is arranged according to the cylinder. There are L type, V type, W type and S type. 　　 (2) Classification according to the number of pressure stages required for the cylinder to reach the final pressure 　　Single-stage compressor: The gas is compressed to the final pressure once. 　　 Two-stage compressor: The gas is compressed to the final pressure after the second compression. 　　 Multi-stage compressor: the cylinder is compressed to the final pressure more than three times. 　　 (3) Classification of gas circulation by the piston in the cylinder 　　Single-acting compressor: Only one end of the cylinder performs a compression cycle. 　　Double-acting compressor: Both ends of the cylinder perform the same compression cycle. 　　 Differential compressor: Two or more stages of compression cycles are performed at one or both ends of the cylinder. 　　 (4) Classification according to the number of compressors 　　Single-row compressor: The cylinder is arranged on a center line of the fuselage. 　　Dual-row compressor: The cylinder is arranged on two center lines on one side or both sides of the fuselage. 　　Multi-row compressor: the cylinder is arranged on more than two midlines on one or both sides of the fuselage Advantages of piston compressor 　　 1. The applicable pressure range of the piston compressor is wide, regardless of the flow rate, it can reach the required pressure; 　　 2. The thermal efficiency of the piston compressor is high, and the unit power consumption is low; 　　 3. Strong adaptability, that is, the exhaust range is wider, and the ring is affected by the pressure level, which can adapt to a wider pressure range and cooling capacity requirements; 　　 4. The maintainability of the piston compressor is strong; 　　 5. Piston compressors have low requirements on materials, and more common steel materials are used, which is easier to process and cheaper to manufacture; 　　 6. Piston compressor is relatively mature in technology, and has accumulated rich experience in production and use; 　　 7. Piston compressor device system is relatively simple. 　　 Disadvantages of piston compressors 　　 1. The speed is not high, the machine is big and heavy; 　　 2. The structure is complex, there are many wearing parts, and the amount of maintenance is large; 　　 3. The exhaust is discontinuous, causing airflow pulsation; 　　 4. There is large vibration during operation.

Recent related posts

06/21/2020

The classification of piston compressor_The advantages and disadvantages of piston compressor Classification of piston compressor

The classification of piston compressor_The advantages and disadvantages of piston compressor <img src="{{media url="The_classification_of_piston_compressor.jpg"}}" alt="" />Classification of piston compressor 　　 (1) Classification according to the position of the cylinder centerline Vertical compressor: The center line of the cylinder is perpendicular to the ground. Horizontal compressor: The center line of the cylinder is parallel to the ground, and the cylinder is only arranged on one side of the fuselage.

06/21/2020

[Experience] What happens if the compressor suction pressure is too high and the discharge pressure is too high

[Experience] What happens if the compressor suction pressure is too high and the discharge pressure is too high Compressor suction pressure is too high, discharge pressure is too high 1. Too much refrigerant. Too much refrigerant will cause the suction pressure and discharge pressure to be too high at the same time. This is because when too much refrigerant fills the reservoir, it will occupy a part of the condenser volume, reducing the heat dissipation area and causing the condenser Poor condensation. Discharge excess refrigerant from the low-pressure side.

06/21/2020

Operation process of automobile air-conditioning refrigeration system and the role of pressure switch

Operation process of automobile air-conditioning refrigeration system and the role of pressure switch From top to bottom, automobile air conditioners are mainly composed of blowers, evaporators, pressure switches, dryers, expansion valves, condensers, and the most source compressors. The operation process of this air-conditioning system is: heat dissipation,

06/21/2020

Structure of rotary piston compressor_Characteristics of rotary piston compressor

Structure of rotary piston compressor_Characteristics of rotary piston compressor <img src="{{media url="Structure_of_rotary_piston_compressor_Characteristics_of_rotary_piston_compressor.jpg"}}" alt="" />Structure of rotary piston compressor 　　 Rotary piston compressor, also known as rolling rotor compressor, is mainly composed of 3 parts: casing, motor assembly and compressor assembly. Since there is no reciprocating part, the space volume can be reduced, making the whole structure compact and light.

06/21/2020

Working principle of reciprocating compressor_Working process of reciprocating compressor

Working principle of reciprocating compressor<img src="{{media url="Working_principle_of_reciprocating_compressor.jpg"}}" alt="" />_Working process of reciprocating compressor Working principle of reciprocating compressor 　　 Relies on periodic changes in the working volume of the cylinder to compress the gas to achieve the purpose of increasing the working pressure. (The reciprocating movement of the piston in the cylinder causes the decompression to suck the gas, and then compress the gas to a certain pressure and send it out.) The working principle of the piston compressor.

06/21/2020

Working principle of reciprocating piston compressor_Characteristics of reciprocating piston compressor

Working principle of reciprocating piston compressor_Characteristics of reciprocating piston compressor <img src="{{media url="wysiwyg/Working_principle_of_reciprocating_piston_compressor.jpg"}}" alt="" /> Reciprocating piston compressor 　　Positive compressor that changes the internal volume of the compression chamber by one or several reciprocating pistons.

06/21/2020

Structure of scroll compressor_Characteristics of scroll compressor

Structure of scroll compressor_Characteristics of scroll compressor Scroll compressor<img src="{{media url="wysiwyg/Structure_of_scroll_compressor_Characteristics_of_scroll_compressor.jpg"}}" alt="" /> 　　 Scroll compressor is a compressor with a compressible volume composed of a fixed involute scroll disk and an involute motion scroll disk that eccentrically rotates in translation.

06/21/2020

Electronic expansion valve application and installation precautions

Electronic expansion valve application and installation precautions <img src="{{media url="wysiwyg/Electronic_expansion_valve_application_and_installation_precautions.png"}}" alt="" /> Advantages of electronic expansion valve: The energy efficiency ratio is improved during high-frequency and low-frequency operation; the reliability of the compressor is improved, the conditions of oil return, liquid return, and exhaust temperature are too high; the operation of the whole machine is reliable, and the problems of water blowing, condensation, and overload are reduced. ; Increased adaptability to changes in refrigerant quantity; Enhanced comfort, short defrost time;

06/21/2020

Refrigeration, Air Conditioning Compressors: Reciprocating, Rotary, Screw, Centrifugal, Scroll

What is Refrigeration Compressor The compressors are one of the most important parts of the refrigeration cycle. The compressor compresses the refrigerant, which flows to the condenser, where it gets cooled. It then moves to the expansion valve, and the evaporator and it is finally sucked by the compressor again. For the proper functioning of the refrigeration cycle, the refrigerant must be compressed to the pressure corresponding to the saturation temperature higher than the temperature of the naturally available air or water. It is the crucial function that is performed by the compressor. Compression of the refrigerant to the suitable pressure ensures its proper condensation and circulation throughout the cycle. The capacity of the refrigeration or air conditioning depends entirely on the capacity of the compressor.<img src="{{media url="422C8FF7C729C6E9A7416FCA7C2EB508849153E1_large.jpg"}}" alt="" />

06/21/2020

Common system failures of refrigeration equipment

Common system failures of refrigeration equipment 1. Liquid return: For refrigeration systems using expansion valves, liquid return is closely related to the selection and use of expansion valves. Expansion valve selection is too large, the superheat setting is too small, the installation method of the temperature sensor is incorrect, the insulation bandage is damaged, and the expansion valve failure may cause liquid return.<img src="{{media url="Common_system_failures_of_refrigeration_equipment2.png"}}" alt="" />