SCREW REFRIGERATION COMPRESSOR UNIT
With more than 60 years of manufacturing experience in refrigeration and air-conditioning equipment and continuous technicalresearch and development capabltiles, MOON Environment Technology Co. ltd, after years of loint research on productionteaching and research, has carled out innovative experimental studles on the theoretical research of thermal and dynamicperformance of compressors and the visualization of practical work process, pressure pulsation, rotor force and oil distributionwhich accurately revealed the internal laws between the design parameters such as rotor profle and orifce position and thethermal and dynamic performance of the screw compressor,forming a complete screw compressor design theory,. On this bassMOON-TECH developed a serles of new effclent screw compressor units with more than 10 independent intellectual propertyriahts and core technology
Single-Stage Screw Refrigeration Compressor Unit
Applicable Conditions
| Refrigerant |
R717A |
R507A |
| Discharge Pressure (MPa) |
<=1.67 |
<=1.95 |
| Suction Pressure (MPa) |
-0.03 ~0.586 |
| Oil Pressure (MPa) |
0.1 ~ 0.3 Higher Than Discharge Pressure |
| Oil Temperature (ºC) |
30~65 |
| Cooling Water InletTemperature (ºC) |
15~33 |
| Cooling Water Flow Deviation |
+-10% |
Features:
*The compressor has a full type spectrum and the displacement range is 285 m3/h ~14000m/h;
*It is widely used and can be operated under high temperature, moderate temperature and low temperature conditions;
*The unit is suitable for R717, R507A, R404A and other working mediums;
*The unit can be customized according to the special needs of users;
*The standard confiquration control mode is automatic.
Compound Two-Stage Screw Refrigeration Compressor Unit
Applicable Conditions
| Refrigerant |
R717 |
| Discharge Pressure (MPa) |
<=1.67 |
| Suction Pressure (MPa) |
-0.05 ~0.052 |
| Oil Pressure (MPa) |
0.05 ~ 0.3 Higher Than Discharge Pressure |
| Oil Temperature (ºC) |
30 ~ 65 |
| Cooling Water Inlet Temperature (ºC) |
15 ~33 |
| Cooling Water Flow Deviation |
±10% |
Features:
*It is suitable for low temperature refrigeration under evaporating temperature below-25ºC, and the efficiency is significantly higher than that of single-stage compressor unit with economizer;
*There are four types of single-machine two-stage screw units, of which high and low pressure stages of LG2016MS LG2520MS, LG3225LS compressor have energy adjustment devices, which can ensure the unit is always efficient and economical under low temperature working conditions;
*The unit can be customized according to the special needs of users;
*The standard configuration control method is automatic.
Skid-Mounted Separate Two Stage Screw Compressor Unit
Applicable Conditions
| Refrigerant |
R717A |
R507A |
| Discharge Pressure (MPa) |
<=1.67 |
<=1.95 |
| Suction Pressure (MPa) |
-0.05 ~0.005 |
| Oil Pressure (MPa) |
0.1 ~ 0.3 Higher Than Discharge Pressure |
| Oil Temperature (ºC) |
30~65 |
| Cooling Water InletTemperature (ºC) |
15~33 |
| Cooling Water Flow Deviation |
+-10% |
Features:
*lt is suitable for low temperature refrigeration under evaporating temperature below-25°ºCC, and the efficiency is significantly higher than that of single-stage compressor unit with economizer;
*The mixing ratio is diverse. The optimum ratio can be selected according to different working conditions and medium of users The ratio of high and low pressure of R717 is between 3 and 4 and that of R507A is between 2 and 3.
*The high and low pressure stages are equipped with energy adjustment devices to ensure that the unit is always efficient and economical under low temperature conditions;
*The compressor of high and low pressure stages starts in different stages with low starting current.
*The oil supply mode of low pressure stage compressor is pressure difference;
*The high-pressure stage can be operated independently to achieve rapid cooling and high efficiency.
*The unit is applicable to R717, R507A, R404A and other working medium;The unit can be configured as required by users.
*The control mode is automatic.
- High efficiency and energy saving, COP increases by about 8%.
- Moon-tech's patent rotor produces smooth operation, high efficiency and low noise.
- Moon-tech's patent capacity control device realizes flexible and accurate control.
- Moon-tech's patent design lowers the noise and vibration.
- Precisely circulation oil control
- Moon-tech's patent high efficiency heat exchange tube
- Reliability and stability
- Refrigerant: Ammonian R717, Freon R404a, R507a, R22, R134a, etc
Coupling
With advanced diaphragm coupling, the vibration can be eliminated andisolated, lt has the function of automatic centering and long service life.
Oil Filter
The high precision and washable stainless-steel flter element are used toachieve high precision filtration, ensure the lubricating oil is clean, andimprove the reliability of oil pump and compressor.
Oil Pump
The specialized oil pump is used, which has advanced structure, a certainpumping capacity, stable oil volume and oil pressure; the mechanical sealof oil pump shaft seal is resistant to high temperature, working mediumcorrosion and has long service life.
Automatic Control System
It is equipped with multiple protections such as early warning of loadlimit, over-limit alarm and over-limit shutdown to ensure the safe andstable operation of the compressor;
*PID energy adjustment is adopted based on the change of load, which isfeatured with fast load tracking and low steady-state error and minimizesequipment energy consumption;
*lt can collect operation data, monitor and store etc., and the key datais presented in graph with the visual change trend, and it also can storehistorical alarm and query them;
*The human-computer interface is color LCD touch screen and supportsmulti-language selections such as Chinese and English; the functionsare universal, and users can confgure functions according to the type ofequipment;
*The Modbus RTU/RS485 communication interface is reserved for remotemonitoring and control of the compressor with the host computer.
Screw Refrigeration Compressor Unit Application
Screw compressor unit is widely used in food freezing and refrigeration, process cooling, gas liquefaction, building aggregate cooling, scientific research experiments, permafrost drilling, sports venues, mine heat hazard treatment and other fields that require artificial low-temperature environments. The compressor unit can be customized according to user needs, and the energy adjustment device (adjustable volume-reduction ratio, frequency conversion) is optional, and the standard configuration control mode is automatic; data can be shared in the cloud and monitored in real time.
MOON ENVIRONMENT TECHNOLOGY Co., Ltd was founded in 1956 and listed in Shenzhen stock exchange in 1998 with stock code 000811. Now Moon-tech is a diversified and international comprehensive equipment industrial enterprise. The main business covers low-temperature refrigeration, central air conditioning, environmental protection heating, energy and chemical equipment, precision castings, smart services, hydrogen energy development, etc. In recent years, MOON-TECH has successively won the titles of Top 30 Enterprises with Core Competitiveness in China's Machinery Industry, Top 100 Enterprises of National Machinery Industry, Meritorious Enterprise of Equipment in China, and Demonstration Enterprise for Ozone Layer Protection.
Our mission: Constantly create value for customers.
Moon-Tech, a leading refrigeration company is your ideal partner in temperature control field!
As a leading company in Chinese refrigeration industry, Moon-Tech has been keeping paces with the world latest technology in order to provide stable, low maintenance and high quality equipments in food processing, low temperature cold storage, petrochemical, semiconductor, chemical industry, hydroelectricity, coal industry etc.
In food cold chain field, Moon-Tech holds more than 60% domestic market share. In overseas market, more than 400 customers from 80 countries and regions have benefited from our products and after sale services.
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Since the advent of the LG series of high-efficiency screw compressors, they have been well-received by users at home andabroad for their great performance and relability. The series products have won the First Prize for scientifc and TechnologicalProgress of Shandong Province, First Prize for Scientific and Technological Progress of Ministry of Education, special Awardof Sclentific and Technological Progress of Chinese Assoclation of Refrlgeration and Second Prize for National sclentiftc andTechnological in 2006. MOON-TECH continues to carry out scientific research, and has made key breakthroughs in workingmedia, operating conditions, eneray eficiency indicators, etc, and succesfuly achieved the transformation and upgrading oscrew compressor manufacturing and application. The project of "Key Technologies R&D and Application of Screw Compressoiwith Special Medium under Extreme Working Conditions" won the first Prize for scientifc and Technological progress of Yeal2019 China Machinery Industry.
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With more than 60 years of manufacturing experience in refrigeration and air-conditioning equipment and continuous technicalresearch and development capabltiles, MOON Environment Technology Co. ltd, after years of loint research on productionteaching and research, has carled out innovative experimental studles on the theoretical research of thermal and dynamicperformance of compressors and the visualization of practical work process, pressure pulsation, rotor force and oil distributionwhich accurately revealed the internal laws between the design parameters such as rotor profle and orifce position and thethermal and dynamic performance of the screw compressor,forming a complete screw compressor design theory,. On this bassMOON-TECH developed a serles of new effclent screw compressor units with more than 10 independent intellectual propertyriahts and core technology
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