Here are some methods to distinguish different models of diaphragm compressors
One、According to the structural form
1. Letter code: Common structural forms include Z, V, D, L, W, hexagonal, etc. Different manufacturers may use different capital letters to represent specific structural forms. For example, a model with “Z” may indicate a Z-shaped structure, and its cylinder arrangement may be in a Z-shape.
2. Structural characteristics: Z-shaped structures usually have good balance and stability; The centerline angle between the two columns of cylinders in a V-shaped compressor has the characteristics of compact structure and good power balance; The cylinders with a D-type structure may be distributed in an opposed manner, which can effectively reduce the vibration and footprint of the machine; The L-shaped cylinder is arranged vertically, which is beneficial for improving gas flow and compression efficiency.
Two、According to the membrane material
1. Metal diaphragm: If the model clearly indicates that the diaphragm material is metal, such as stainless steel, titanium alloy, etc., or if there is a code or identification for the relevant metal material, then it can be determined that the diaphragm compressor is made of metal diaphragm. Metal membrane has high strength and good corrosion resistance, suitable for compression of high-pressure and high-purity gases, and can withstand large pressure differences and temperature changes.
2. Non metallic diaphragm: If marked as rubber, plastic, or other non-metallic materials such as nitrile rubber, fluororubber, polytetrafluoroethylene, etc., it is a non-metallic diaphragm compressor. Non metallic membranes have good elasticity and sealing properties, relatively low cost, and are commonly used in situations where pressure and temperature requirements are not particularly high, such as compression of medium and low pressure, ordinary gases.
Three、According to the compressed medium
1. Rare and precious gases: Diaphragm compressors designed specifically for compressing rare and precious gases such as helium, neon, argon, etc. may have specific markings or instructions on the model to indicate their suitability for compression of these gases. Due to the special physical and chemical properties of rare and precious gases, high requirements are placed on the sealing and cleanliness of compressors.
2. Flammable and explosive gases: Diaphragm compressors used to compress flammable and explosive gases such as hydrogen, methane, acetylene, etc., whose models may highlight safety performance characteristics or markings such as explosion prevention and fire prevention. This type of compressor will take a series of safety measures in design and manufacturing to prevent gas leakage and explosion accidents.
3. High purity gas: For diaphragm compressors that compress high-purity gases, the model may emphasize their ability to ensure high purity of the gas and prevent gas contamination. For example, by using special sealing materials and structural designs, it ensures that no impurities are mixed into the gas during the compression process, thereby meeting the high purity requirements of industries such as the electronics industry and semiconductor manufacturing.
Four、According to the movement mechanism
1. Crankshaft connecting rod: If the model reflects features or codes related to the crankshaft connecting rod mechanism, such as “QL” (abbreviation for crankshaft connecting rod), it indicates that the diaphragm compressor uses a crankshaft connecting rod motion mechanism. The crankshaft connecting rod mechanism is a common transmission mechanism with the advantages of simple structure, high reliability, and high power transmission efficiency. It can convert the rotational motion of the motor into the reciprocating motion of the piston, thereby driving the diaphragm for gas compression.
2. crank slider: If there are markings related to the crank slider in the model, such as “QB” (abbreviation for crank slider), it indicates that the crank slider motion mechanism is used. The crank slider mechanism has advantages in certain specific application scenarios, such as achieving more compact structural design and higher rotational speed in some small, high-speed diaphragm compressors.
Five、According to the cooling method
1. Water cooling: “WS” (short for water cooling) or other markings related to water cooling may appear in the model, indicating that the compressor uses water cooling. The water cooling system uses circulating water to remove the heat generated by the compressor during operation, which has the advantages of good cooling effect and effective temperature control. It is suitable for diaphragm compressors with high temperature control requirements and high compression power.
2. Oil cooling: If there is a symbol such as “YL” (abbreviation for oil cooling), it is an oil cooling method. Oil cooling utilizes lubricating oil to absorb heat during circulation, and then dissipates the heat through devices such as radiators. This cooling method is common in some small and medium-sized diaphragm compressors, and can also serve as a lubricant and seal.
3. Air cooling: The appearance of “FL” (abbreviation for air cooling) or similar markings in the model indicates the use of air cooling, which means that air is passed through the surface of the compressor through devices such as fans to remove heat. The air-cooled cooling method has a simple structure and low cost, and is suitable for some small, low-power diaphragm compressors, as well as for use in places with low environmental temperature requirements and good ventilation.
Six、 According to the lubrication method
1. Pressure lubrication: If there is a “YL” (abbreviation for pressure lubrication) or other clear indication of pressure lubrication in the model, it indicates that the diaphragm compressor adopts pressure lubrication. The pressure lubrication system delivers lubricating oil at a certain pressure to various parts that require lubrication through an oil pump, ensuring that all moving parts receive sufficient lubrication under harsh working conditions such as high load and high speed, and improving the reliability and service life of the compressor.
2. Splash lubrication: If there are relevant markings such as “FJ” (abbreviation for splash lubrication) in the model, it is a splash lubrication method. Splash lubrication relies on the splashing of lubricating oil from moving parts during rotation, causing it to fall onto the parts that need lubrication. This lubrication method has a simple structure, but the lubrication effect may be slightly worse than pressure lubrication. It is generally suitable for some diaphragm compressors with lower speeds and loads.
3. External forced lubrication: When there are features or codes indicating external forced lubrication in the model, such as “WZ” (abbreviation for external forced lubrication), it indicates the use of an external forced lubrication system. The external forced lubrication system is a device that places lubrication oil tanks and pumps outside the compressor, and delivers lubricating oil to the inside of the compressor through pipelines for lubrication. This method is convenient for maintenance and management of lubricating oil, and can also better control the amount and pressure of lubricating oil.
Seven、From displacement and exhaust pressure parameters
1. Displacement: The displacement of diaphragm compressors of different models may vary, and the displacement is usually measured in cubic meters per hour (m ³/h). By examining the displacement parameters in the models, it is possible to preliminarily distinguish between different types of compressors. For example, the diaphragm compressor model GZ-85/100-350 has a displacement of 85m ³/h; The compressor model GZ-150/150-350 has a displacement of 150m ³/h1.
2. Exhaust pressure: Exhaust pressure is also an important parameter for distinguishing diaphragm compressor models, usually measured in megapascals (MPa). Different application scenarios require compressors with different exhaust pressures, such as diaphragm compressors used for high-pressure gas filling, which may have exhaust pressures as high as tens or even hundreds of megapascals; The compressor used for ordinary industrial gas transportation has a relatively low discharge pressure. For example, the exhaust pressure of the GZ-85/100-350 compressor model is 100MPa, and the exhaust pressure of the GZ-5/30-400 model is 30MPa1.
Eight、Refer to the specific numbering rules of the manufacturer
Different manufacturers of diaphragm compressors may have their own unique model numbering rules, which may take into account various factors as well as the manufacturer’s own product characteristics, production batches, and other information. Therefore, understanding the specific numbering rules of the manufacturer is very helpful for accurately distinguishing different models of diaphragm compressors.
Post time: Nov-09-2024