Tel:+86-755-82153336

Email: info@ruifujietech.com

enLanguage
Home / Products / Hermetic Piston Compressor

Hermetic Piston Compressor

Shenzhen Ruifujie Technology Co.,Ltd: Your Professional Hermetic Piston Compressor Manufacturer!

 

Shenzhen Ruifujie Technology Co., Ltd. is a large-scale modern enterprise specializing in R&D, production, and sales of refrigeration products. The company has great advantages in the trading of compressors and refrigeration accessories and has close cooperation with major compressor manufacturers around the world. The company develops and produces scroll, piston, and screw compressors that are exported to all over the world. We have strong technical strength and experience in cold storage, freezing, quick freezing, and flake ice machines, block ice machine production, and sales.


Rich Product Variety
Our company can produce hermetic scroll compressor, hermetic piston compressor, semi-hermetic piston compressor, screw compressor, hermetic air-cooled condensing unit, semi-hermetic air-cooled condensing unit, semi-hermetic water-cooled condensing unit, piston parallel condensing unit, screw condensing unit, air cooled condenser, air cooler, flake ice machine, block ice machine, fresh storage, freezing room, quickly freezer room, large freezer room, and so on.

 

Quality Guaranteed
We have more than 20 years of experience in the development of compressors and refrigeration accessories. We strictly control product quality and insist on making high-quality products.

 

Wide Range of Product Uses
Our products are widely used in cold storage, frozen food processing and storage，low-temperature shelf, ice cream machine, showcase, chiller, large integrated air conditioning, laboratory and medical equipment, cold dryer，etc.

 

Leading Service
We have many years of industry experience and a complete production management, quality supervision, sales service operation system. Whether you want to buy hermetic scroll compressor or hermetic piston compressor, just send your requirements by email and we can customize the product for you.

First 123456 Last 1/6
What is Hermetic Piston Compressor

 

A hermetic piston compressor is a positive displacement compressor capable of delivering gases at high pressures. The piston inside the machine moves back and forth to compress the air and increase the pressure.

 

 
What are Advantages of Hermetic Piston Compressor
 
01/

Simple Structure
The structure of the hermetic piston compressor is relatively simple, mainly composed of a compression chamber, a cylinder, a piston, a crankshaft, etc. The process of compressing air is achieved by opening and closing the butterfly valve plate. It is easy to maintain and generally does not require too complicated equipment for maintenance.

02/

Wide Range of Applications
The hermetic piston compressor has a wide pressure range and can be used for the compression of low-pressure gas and high-pressure gas, and can adapt to a variety of media and processes. It is also suitable for work in various temperature environments.

03/

High Efficiency and Energy Saving
The hermetic piston compressor can achieve a high compression ratio, so it can achieve a higher efficiency when compressing gas. At the same time, compared with other forms of compressors, its energy consumption is relatively low, so it also has the advantage of energy saving.

04/

Stable Operation
Due to the simple mechanical structure of the hermetic piston compressor, it can maintain good stability when running frequently, and there will be no quality problems in long-term use.

05/

High-Pressure Capability
Hermetic piston compressors can deliver high-pressure air, making them ideal for applications requiring significant pressure, such as powering pneumatic equipment and machinery.

06/

Durability and Longevity
The hermetic piston compressors are intended to last, with sturdy construction that can handle severe use and tough conditions. They can have an extended operational life if properly maintained.

 

What are the Applications of Hermetic Piston Compressor
 

Automotive Industry
In vehicle repair shops and production facilities, hermetic piston compressors are used for tire inflation, painting, and running pneumatic tools.

 

Construction Sector
Hermetic piston compressors power jackhammers, nail guns, and concrete vibrators on construction sites, increasing efficiency and production.

 

Food and Beverage Industry
In food processing, the hermetic piston compressors assist in packaging, labeling, and filling operations. They provide clean and oil-free air essential for maintaining product quality.

 

Medical Applications
Hermetic piston compressors are essential in healthcare facilities, as they power breathing equipment and other medical devices that require a constant supply of compressed air.

 

Manufacturing Plants
Hermetic piston compressors help to keep various manufacturing processes running smoothly by powering conveyor systems and operating automated machinery.

 

Components of Hermetic Piston Compressor
Rotolock Air Conditioning Refrigeration Compressor
SECOP DC Compressor for Commercial Refrigerator
Maneurop Compressor
Danfoss MTZ

Compressor Head
The core part of the hermetic piston compressor is the compressor head, which consists of several parts such as the cylinder, valve, piston, and connecting rod. The cylinder is the main structure of the compressor head, which is generally made of cast iron, alloy and other materials. The valve is used to control the flow direction of the gas in and out of the cylinder. The piston is responsible for compressing the gas and is usually made of iron, copper, aluminum and other materials. The connecting rod connects the piston and the crankshaft and other parts.

 

Motor
The motor is the power source of the hermetic piston compressor and provides power for the compressor. The motor is usually installed on the side of the compressor head and generally uses an AC power supply.

 

Cooler
The compressor will generate a lot of heat during operation. If proper heat dissipation is not performed, it will affect the normal operation of the compressor. Therefore, the compressor is generally equipped with a cooler to dissipate the heat through the cooler to ensure the normal operation of the compressor.

 

Oil Separator
The oil in the hermetic piston compressor needs to be separated before compressing the air to prevent the oil from entering the system and affecting the quality of the compressed air. Therefore, the oil separator is an indispensable part of the hermetic piston compressor. The oil separator is usually filtered by a metal mesh, and the oil will be filtered out when the air flows through it.

 

Oil Filter
The oil filter is mainly used to clean the oil in the compressor to ensure the cleanliness of the oil and the quality of the compressed air.

 

Exhaust Pipe
The exhaust pipe is used to discharge compressed air. The exhaust pipe must be kept dry, clean and straight, which helps to ensure the normal operation of the system.

 

How to Choose Right Hermetic Piston Compressor

 

Pressure and Flow

Pressure and flow are the most important factors affecting the performance of hermetic piston compressors. Generally speaking, the greater the pressure and flow, the larger the piston compressor required.

Power

The power of a hermetic piston compressor is usually provided by an electric motor or a fuel engine. You need to choose the appropriate power method according to your needs.

Dimensions

When choosing a hermetic piston compressor, you also need to consider whether its dimensions are suitable for your production environment.

Cooling Method

There are two cooling methods for hermetic piston compressors: natural cooling and forced air cooling. You need to choose according to your needs.

Noise

The noise of a hermetic piston compressor is also a factor that needs to be considered. You need to choose a noise level that suits you.

 

Maintenance Tips for Hermetic Piston Compressor
 

 

Change the Air Filter
The air filter in your hermetic piston compressor prevents dirt, dust, and contaminants from entering the system. Over time, these filters can become clogged, reducing airflow and causing your compressor to work harder. Regularly inspect and change the air filter according to the manufacturer's recommendations to maintain optimal performance.

 

Keep the Compressor Clean
Dust and debris can accumulate on the compressor's exterior, and if not removed, can make its way into the inner workings. Use a cloth or compressed air to keep the compressor clean. A clean compressor not only operates more efficiently but also extends its lifespan.

 

Monitor Oil Levels
If your piston compressor is oil-lubricated, it's essential to monitor oil levels regularly. Running the compressor with low or dirty oil can lead to overheating and internal damage. Check the oil level as recommended by the manufacturer and change it at specified intervals.

 

Tighten Loose Bolts and Fasteners
Vibrations from the compressor's operation can cause bolts and fasteners to become loose over time. Inspect and tighten all bolts and fasteners to prevent equipment damage and ensure safe operation.

 

Drain the Tank
Condensation can build up in the compressor's tank, leading to rust and reduced tank life. Regularly drain the tank to remove moisture and prevent corrosion.

 

Inspect Belts and Hoses
Examine belts and hoses for wear, cracks, or damage. Replace any parts that show signs of wear and tear. Faulty belts and hoses can lead to decreased efficiency and even compressor failure.

 

Keep Proper Records
Maintaining records of your compressor's maintenance and performance can be a valuable tool. Note when maintenance tasks were performed and any issues or irregularities encountered. This documentation helps in troubleshooting and ensures timely maintenance.

 

FAQ

Q: How does a hermetic piston compressor work?

A: Piston: The piston is a cylindrical shaped component that moves back and forth inside the cylinder during combustion. The repeated up-and-down movement of the piston creates a reciprocating motion.
Crankshaft: A connecting rod connects the piston to the crankshaft. An electric motor drives the crankshaft to rotate. The rotation of the crankshaft moves the pistons up and down so they can compress the air
Cylinders: The cylinders are cylindrical chambers in which the piston moves. They are closed at one end and open at the other. Air enters the cylinder through intake valves during the suction stroke when the piston moves downward. When the piston moves upward, the air is compressed and released through outlet valves during the compression stroke.
Valves: Most compressors have self-acting valves. A self-acting valve opens and closes through the effect of pressure differences on both sides of the valve disk. They allow air to enter the cylinder during the suction stroke and prevent it from escaping during the compression stroke.

Q: What is the working process of a hermetic piston compressor?

A: Inhalation process: When we start the compressor, the motor drives the piston to move downward, and at the same time, the air in the cylinder is pulled up by the piston, sucked in from the air inlet, and fills the compression chamber.
Compression process: As the piston moves upward, the air in the cylinder is compressed, and the gas temperature and pressure in the compression chamber increase.
Exhaust process: When the piston rises to a certain height, the exhaust valve automatically opens, and the high-pressure gas in the compression chamber is discharged. At this time, the compressor completes a working cycle.

Q: What are the factors that affect the exhaust volume of hermetic piston compressors?

A: Machine parameters
The size of the exhaust volume of hermetic piston compressors is closely related to the machine's speed, number of cylinders, cylinder diameter, stroke and other parameters. The higher the speed of the machine, the greater the exhaust volume per minute; the more cylinders, the larger the cylinder diameter, and the longer the stroke, the greater the amount of gas discharged during each cycle, so the exhaust volume also increases.
Gas pressure and density
The gas exhaust volume of hermetic piston compressors is related to gas pressure and density. At normal temperature, the density of gas increases with the increase of pressure, so increasing gas pressure will increase the exhaust volume. Of course, excessive load will also bring the risk of damage to the machine.
Ambient temperature
Within a certain range, ambient temperature also has a certain effect on exhaust volume. Hot air has a lower density, while cold air has a higher density, which means that the gas density in cold air is higher at the same volume. Therefore, under low ambient temperature, the exhaust volume of hermetic piston compressors will also increase.
Gas composition
Gases of different components have different densities and molecular weights under the same conditions. For example, carbon dioxide has a larger molecular weight and hydrogen has a smaller molecular weight, so the exhaust volume of carbon dioxide is relatively small, while the exhaust volume of hydrogen is relatively large.
Machine usage time
Using a piston compressor for a long time may cause aging or failure of components such as seals, thereby affecting the exhaust volume.

Q: How to increase the service life of hermetic piston compressors?

A: Clean and replace filters
The filter in the compressor can prevent dust, grease and other impurities from entering the compressor, keeping the inside of the compressor clean. Therefore, regular cleaning and replacement of filters can ensure the normal operation of the compressor and extend its life.
Check and tighten screws regularly
During use, the screws of the compressor may gradually loosen, affecting its performance. Therefore, it is necessary to check and tighten the screws regularly to ensure its normal operation. At the same time, check whether other fasteners are damaged or worn, and replace them in time if they need to be replaced.
Check, adjust and clean the inside of the compressor to maintain optimal operation
There may be some dirt, precipitation or other impurities inside the compressor, which needs to be cleaned regularly. If some key parts are found to be worn or have other problems, they need to be adjusted or replaced in time to ensure the normal operation of the compressor.

Q: How to reduce energy waste?

A: Ensure that the compressor has enough air flow
Energy waste can be reduced by setting the air flow to match the actual demand. If the air flow is insufficient, the compressor will take more time to reach the required working pressure, thereby consuming more energy. Therefore, the air flow needs to be adjusted as needed.
Check gas leaks regularly
Gas leaks will lead to energy waste and unnecessary cost increases. Therefore, it is necessary to check for gas leaks regularly to ensure the normal operation of the compressor and the efficient use of energy.
Use high-efficiency equipment
Using high-efficiency equipment can reduce energy consumption and management costs. For example, filters and other equipment with higher efficiency can be used to reduce energy waste and cost increases.

Q: What is the reason for high crankcase pressure in hermetic piston compressors?

A: Poor valve seals
Poor valve seals can cause the seal between the compression chamber and the crankcase to fail during the compressor's intake and exhaust process, which in turn causes the internal crankcase pressure to increase. The solution is to replace the valve or valve seal to ensure the sealing of the valve.
Piston ring wear
If the piston ring is worn or damaged, air will pass through the piston ring into the crankcase, causing the crankcase pressure to increase. To solve this problem, the piston ring or the entire piston assembly needs to be replaced.
Poor crankcase ventilation
Poor crankcase ventilation is also one of the reasons for high crankcase pressure in piston compressors. High-temperature oil vapor in the crankcase will form air bubbles, reduce the performance of the lubricating oil, and cause problems such as piston ring wear, piston and cylinder liner wear. To solve this problem, it is necessary to check and clean the crankcase ventilation duct or replace the valve.

Q: What is the reason for the reduction of the exhaust volume of the hermetic piston compressor?

A: Seal failure
The seal of the hermetic piston compressor is one of the guarantees for its normal operation. If the seal fails, the exhaust volume will be reduced. The reasons for seal failure may be aging, deformation or damage of the seal ring. At this time, it is necessary to check and replace the seal ring to ensure normal sealing.
Valve failure
The valve is one of the important components in the hermetic piston compressor. If the valve fails, the exhaust volume will be reduced. The reasons for the valve failure may be start failure, blockage, poor sealing, etc. At this time, it is necessary to check the valve, clean the valve or replace the valve to ensure its normal operation.
Filter element blockage
The filter element of the hermetic piston compressor is an important part of filtering impurities in the air. If the filter element is blocked, the exhaust volume will be reduced. The reasons for the blockage of the filter element may be excessive use of the filter element, dust accumulation or damage to the filter element. At this time, the filter element needs to be cleaned or replaced to ensure its normal filtration.
Accessory wear
Accessory wear in the hermetic piston compressor may also lead to a reduction in exhaust volume. The reasons for wear may be too long operation time, improper use, etc. In severe cases, accessories or the entire machine may need to be replaced. Pay attention to maintenance during use to reduce the degree of wear.

Q: What is the working principle of the air valve in a hermetic piston compressor?

A: In a hermetic piston compressor, the working principle of the air valve mainly relies on the pressure difference between the mechanical end and the gas end to start and close. The mechanical end refers to the mechanical part of the air valve in the cylinder, which is generally higher than the pressure at the gas end; the gas end refers to the gas side of the air valve in the cylinder, and the pressure at the gas end changes with the opening and closing of the air valve. When the air valve is closed, the pressure at the gas end gradually increases, and when it reaches the same pressure as the mechanical end, the air valve will close. When the piston moves to the top, the air valve starts, the gas pressure at the gas end decreases, and the pressure difference will cause the air valve to close. This ensures the order and efficiency of intake and exhaust.

Q: What is the function of the suction valve?

A: Hermetic piston compressors increase the pressure of the gas by increasing the kinetic energy between gas molecules. The main function of the suction valve is to inhale air or gas from the outside and introduce it into the cylinder of the compressor when the piston moves upward. The working principle of the suction valve is achieved by opening the inlet hole at the top of the cylinder. When the suction piston moves upward, the external air is automatically entered into the cylinder, compressed along the cylinder wall, and then discharged through the exhaust pipe.

Q: What is the function of the exhaust valve?

A: As the piston moves downward, the gas entering the cylinder is compressed. The main function of the exhaust valve is to expel the compressed gas from the cylinder as the piston moves downward. These valves are usually symmetrical to the suction valve. The exhaust valve works by closing the inlet hole at the top of the cylinder and opening the exhaust pipe. As the piston moves downward, the gas is compressed. When the compressed gas pressure exceeds the critical opening pressure of the valve, the exhaust valve opens and discharges the gas from the cylinder.

Q: What is the reason for the large vibration of the hermetic piston compressor?

A: Unreasonable design of the refrigeration system: The refrigeration system is not designed reasonably, and the compressor does not match other components, which will lead to increased vibration and noise.
Inaccurate installation position: If the installation position of the hermetic piston compressor is inaccurate, it will cause vibration, making the equipment unstable.
System pressure is too high or too low: The compressor system pressure is too high or too low, which will cause the vibration of the compressor to increase.
Loose hardware: Loose hardware such as accessories, pipes and fasteners will also cause large vibration.
Long running time: Some old hermetic piston compressors will cause increased vibration of the equipment due to wear after a long period of use.

Q: How to solve the problem of large vibration of hermetic piston compressors?

A: Check whether the design of the refrigeration system is reasonable. If the design is unreasonable, it needs to be improved.
Check whether the installation position of the piston compressor is accurate. If it is inaccurate, it needs to be reinstalled.
Reasonably control the pressure of the system and keep it within the appropriate range.
Regularly check whether the hardware such as accessories, pipes and fasteners are loose. If there is any looseness, it needs to be repaired and fixed in time.
Replace old equipment in time and perform maintenance to ensure smooth operation of the equipment and reduce vibration.

Q: What should I pay attention to when installing a hermetic piston compressor?

A: Place it flat
The hermetic piston compressor needs to be placed on a horizontal surface. If it is not flat, it may cause the compressor to vibrate, be damaged or even get stuck.
Prevent vibration
The hermetic piston compressor will vibrate when working. In order to avoid damage to the compressor due to vibration, special attention should be paid to the installation conditions around the body, the selection of pads and shock absorbers.
Good ventilation
The heat dissipation effect of the hermetic piston compressor is poor, and good ventilation conditions need to be ensured during installation. Try to avoid using it in a closed environment, otherwise it may cause malfunctions.
Leave enough space
When installing a hermetic piston compressor, ensure that there is enough space around it to facilitate the maintenance and future replacement of the equipment.

We're professional hermetic piston compressor manufacturers and suppliers in China, specialized in providing high quality products with competitive price. We warmly welcome you to buy cheap hermetic piston compressor in stock here from our factory.

Maneurop Compressor For Condensing Unit, Semi hermetic Compressor For Bitzer, R410a Mitsubishi Invert Compressor

(0/10)

clearall