Compressor refrigeration principle, what is the working principle of refrigeration compressor?

Compressed gas liquefies the gas at pressurized pressure, and the liquid releases cold during vaporization, it's as simple as that!

To put it simply, it is to use the principle of air separation!

Worm compressor Scroll air compressor is composed of two dynamic and static vortex disks of two-function equation lines meshing with each other. In the process of suction, compression and exhaust, the static disc is fixed on the frame, and the moving disc is driven by an eccentric shaft and restricted by an anti-rotation mechanism, and rotates in a plane with a small radius around the center of the base circle of the static disk. The gas is sucked into the periphery of the static plate through the air filter, and as the eccentric axis rotates, the gas is gradually compressed in a number of crescent-shaped compression chambers combined by the phagocytosis of the dynamic and static disk, and then continuously discharged through the axial hole of the central part of the static plate.

The working principle of a piston compressor is a piston compressor.

When the crankshaft of the piston compressor rotates, the piston will reciprocate through the transmission of the connecting rod, and the working volume composed of the cylinder inner wall, cylinder head and piston top surface will change periodically. When the piston of the piston compressor starts to move from the cylinder head, the working volume in the cylinder gradually increases, and at this time, the gas is along the inlet pipe, pushes open the intake valve and enters the cylinder, until the working volume becomes the maximum, the intake valve is closed; When the piston of the piston compressor moves in the opposite direction, the working volume in the cylinder shrinks, the gas pressure increases, and when the pressure in the cylinder reaches and slightly exceeds the discharge pressure, the exhaust valve opens, and the gas is discharged from the cylinder until the piston movement reaches the limit position, and the exhaust valve is closed.

Screw compressors.

Advantages of screw compressors:

1.High reliability. The screw compressor has few parts and no wearing parts, so it runs reliably and has a long life.

2.The power is well balanced. The screw compressor has no unbalanced inertia force, the machine can work smoothly at high speed, and can realize the operation without foundation, especially suitable for mobile compressor, small size, light weight and small footprint.

3.Adaptable. The screw compressor has the characteristics of forced gas transmission, the volumetric flow rate is almost not affected by the discharge pressure, and can maintain high efficiency in a wide range, and is suitable for a variety of working conditions without any change in the compressor structure.

In the process of operation, the refrigeration compressor will extract the refrigerant from the low-pressure area, compress it and send it to the high-pressure area for cooling and condensation, and the refrigerant will be dissipated into the air through the heat sink after being transported to the high-pressure area, and then it will also change from the original gaseous state to the liquid state, and the pressure will also increase.

During the circulation, the refrigerant flows from the high-pressure area to the low-pressure area, and then is sprayed into the evaporator through the capillaries, changing from liquid to gaseous state in the case of a sudden pressure drop, and then absorbing the heat in the air through heat dissipation and bucket blades to achieve cooling. Through this cycle, the cold air is successfully transferred into the room.

The working principle of the compressor is to convert the rotation of the motor into the translation of the piston through the crankshaft connecting rod, and the translation of the piston causes the volume of the cylinder compression chamber to change periodically, thereby reducing the gas volume of the compressor and increasing the pressure at the same time.

A compressor is a driven fluid machine that pressurizes a low-pressure gas to a high-pressure ground. It is the heart of the refrigeration system. It sucks low temperature and low pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and then discharges the high temperature and high pressure refrigerant liquid to the exhaust pipe to provide power for the refrigeration cycle, so as to realize the refrigeration cycle of compression, condensation, expansion and evaporation (heat absorption).

Under the specified operating conditions, it is ensured that there is no negative deviation in the intake volume (5% negative deviation is allowed in the air compressor). Due to the large fluctuation of working conditions, there is a large margin for the design volume flow.

Compressor Failure Phenomenon:

1. Winding short circuit, open circuit and winding touching the shell grounding

This kind of fault is caused by the motor part of the compressor, and the fault phenomenon is that the power supply is normal and the compressor does not work when the fault is broken. The protector operates after powering on when the short circuit and the shell are touched, or the fuse is burned.

2. Compressor shaft and cylinder:

If the compressor loses oil or has impurities into it, it will often cause the shaft or cylinder to be stuck, and the fault phenomenon is that the compressor does not run after the power is on, and the protector acts.

3. The compressor suction and exhaust valves are not closed tightly

If the suction and exhaust valves of the compressor are damaged, even if the refrigerant is sufficient, the system cannot establish high and low pressure, or it is difficult to establish qualified high and low pressure, and the system does not refrigerate or the refrigeration effect is very poor.

4. Vibration and noise of compressor:

This kind of problem often occurs in the maintenance of the state, generally does not have much impact on the refrigeration performance, but will be used Bihu does not feel normal, often caused by the pipe and casing collision, compressor fixing bolts loose and shock absorbers falling off, etc.

5. Thermal protector is damaged

The thermal protector is an accessory of the compressor, and the fault is generally an open circuit or a small operating temperature point. An open circuit will cause the compressor to not work. The problem is often easily confused with a slight short circuit between the winding turns, the difference is that the working current is normal when the thermal protector is damaged, and the current is large when the winding is short-circuited.

Summary. Hello dear <>

1.Overload protection: When the current is too large due to excessive load or other reasons during the operation of the compressor, which exceeds the normal range, the overload protection module will automatically cut off the power supply and stop the compressor from running, so as to protect the compressor from being damaged.

2.Overheat protection: When the compressor is running, when the temperature is too high due to poor cooling or other reasons, the overheat protection module will automatically cut off the power supply and stop the compressor from running, so as to protect the compressor from damage.

3.Low-pressure protection: When there is a leak inside the refrigeration system or other reasons that cause insufficient refrigerant, the low-pressure protection module will automatically cut off the power supply and stop the compressor from running, so as to protect the compressor from damage.

The above is the working principle of the cold storage compressor protection module, and its specific implementation may vary depending on the manufacturer, model and use.

Diagram of the working principle of the refrigeration compressor.

The common refrigeration compressor is shown in the figure above, and the specific working principle is as follows:1The refrigerant is heated inside the evaporator and becomes a gaseous state, absorbing the surrounding heat.

2.The gaseous refrigerant is brought into the stool and brought into the compression machine, where it is compressed into a high-pressure gas. 3.

The high-pressure gas enters the condenser, dissipates heat through the radiator, and becomes a high-pressure liquid refrigerant. 4.The liquid refrigerant enters the evaporator through the expansion valve (flow restrictor), reduces the pressure, and becomes a gaseous refrigerant with low temperature and low pressure.

5.The gaseous refrigerant enters the compressor again, and the jujube reed repeats the above cycle to absorb and discharge heat to achieve the purpose of refrigeration.

The working principle of the cold storage compressor protection module.

Hello <> the pro-group judge

1.Overload protection: When the current is too large due to excessive load or other reasons during the operation of the compressor, which exceeds the normal range, the overload protection module will automatically cut off the power supply and stop the compressor from running, so as to protect the compressor from being damaged.

2.Overheating protection: When the compressor is running, when the temperature is too high due to poor cooling or other reasons, the overheat protection module will automatically cut off the power supply or cover the power supply, so that the compressor will stop running, so as to protect the press and shrink machine from damage.

3.Low-pressure protection: When there is a leak inside the refrigeration system or other reasons that cause insufficient refrigerant, the low-pressure protection module will automatically cut off the power supply and stop the compressor from running, so as to protect the compressor from damage.

The above is the working principle of the cold storage compressor protection module, and its specific implementation may vary depending on the manufacturer, model and use.

The cold storage compressor protection module is a protective device that can prevent the compressor from overloading, overheating or low pressure. When the compressor has the above fault, the protection module will automatically cut off the power supply and stop the operation of the compressor, so as to protect the compressor from damage. That's all for me, if you have any other questions, you can add to me

Summary. I hope my answer will be helpful to you, the working principle of the refrigeration compressor is to mechanically suck the low-temperature and low-pressure refrigerant into the compressor, then compress it into a high-temperature and high-pressure gaseous refrigerant, and finally send it into the condenser for cooling, so that it becomes a high-pressure liquid refrigerant, and then enters the evaporator through the throttle valve, and the refrigerant in the evaporator absorbs heat and becomes a low-temperature and low-pressure gaseous refrigerant, which is sucked into the compressor again, and the cycle is repeated, so as to achieve the purpose of refrigeration.

I hope my answer will be helpful to you, the working principle of the refrigeration compressor is to mechanically suck the low-temperature and low-pressure refrigerant into the compressor, and then compress it into a high-temperature and high-pressure gaseous refrigerant, and finally send it to the Shichai Bridge into the condenser for cooling, so that it becomes a high-pressure liquid trillion-pin refrigerant, and then enters the evaporator through the throttle valve, and the refrigerant in the evaporator absorbs heat and becomes a low-temperature and low-pressure gaseous refrigerant, which is sucked into the compressor again, and the cycle is reciprocated, so as to achieve the purpose of refrigeration.