Shanghai Hanbell was established in 1996 and listed on Shenzhen A-share market in 2007. Jinan, Guangzhou, Nanjing and Chongqing branches have been set up one after another, and the subsidiaries of Zhejiang Hanson, Shanghai Comer, Hanbell HongKong, Hanbell Vietnam, Hanbell Korea and Zhejiang Comer have been set up one after another. All these reflect the achievements of HANBELL people's hard work in the past 27 years.
HANBELL PRECISE MACHINERY COMPANY 27 YEARS OF HISTORYAIMS TO OPEN
As a natural working medium, CO2 is environmentally friendly, nontoxic, safe, reliable, economical and energy-saving. Under -28°C working condition, the lower the temperature is, the larger the scale, the more obvious the advantages of high energy efficiency ratio and less economic investment will be. Unlike ammonia refrigeration, it will never pollute food, so it is mostly used for low-temperature and ultra-low temperature refrigeration, as well as quick freezing tunnel and food freezing. CO2 is one of the ideal natural environment-friendly refrigerants. With the market promotion and technology maturity, it will be widely used in the field of refrigeration.
But the maximum design pressure of the conventional screw compressor is about 30bar which cannot be applied to R744 (CO2) refrigerant. The RH series compressor is a good solution to the above problems. Compared with the conventional screw compressor, it has the advantages of high structural strength, good volumetric efficiency, simple control, high efficiency and high reliability.
To sum up, the features of RH mainly reflect the demands of high efficiency and high reliability under high pressure conditions. It combines the rich technology Hanbell accumulated and a lot of application experience of Hanbell in the field of screw compressor, which can be called an elite product. RH series products are mainly used in CO2 subcritical cycle system, overlapping with NH3, R134a, R507a and other refrigerants, and widely used in process cooling, process cooling, pharmaceutical and biochemical, marine refrigeration and other industries; Combined with quick-frozen tunnel and quick-frozen warehouse, it can be used in agricultural products, aquatic products, meat products processing, quick-frozen / freeze-dried products, biochemical freeze-dried drugs and other market areas.
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Light starting load design，starting load is equivalent to ordinary single-stage compressor, avoiding greater impact on the power grid.
The excellent motor cooling flow channel design ensures reliable cooling of the motor and high efficiency of the compressor, so that the compressor can operate in a very wide range and more adaptable.
The motor embedded temperature sensor, PT100\PT1000\NTC, which can read the motor temperature directly to control motor temperature and protect the motor.
Built in exhaust check valve, pre installed suction and exhaust shut-off valve and suction filter, to achieve reliable protection of the compressor and simplify customer system configuration.
The design pressure of RH compressor is 63bar, which can ensure the safety even in 45bar long-term operation.
Thanks to the excellent internal structure design and rotor profile, it can achieve low vibration and low noise in use.
RH series compressors are widely used in the field of air-cooled heat pump such as R410A and R134a and other refrigerant cross critical cycle due to high design pressure.
Model | Displacement 50Hz | Rotation speed 50Hz r/min | Range of capacity control | Lubrication type | Noise |
m3/h | STEP | dB | |||
RH-150 | 150 | 2950 | 33%/66% | Pressure differential | 75 |
RH-300 | 300 | 25%/50% | 78 | ||
RH-550 | 550 | 81 | |||
RH-850 | 850 | 84 |
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