The quality of this brand should depend on the feedback from specific customers. It happens that the Shanghai Huizhuo you mentioned is used in our hydrogen energy industry, and the effect is not bad. It is also ready for the second stage. There are two types of equipment: air cooling and water cooling. Attention should be paid when selecting important indicators, including life cycle cost, power supply, cooling IP grade, cooling capacity, evaporation capacity, evaporation material, evaporator, condenser material, capacitor capacity, ambient temperature, fan motor type, noise level, internal piping material, compressor number, compressor type, loop refrigerator, cooling liquid demand and fluid discharge temperature. For large and medium-sized units, the range should be 3. 5-7。 A higher value of 0 indicates higher performance. The efficiency of water cooler is usually specified as tons of refrigeration per kilowatt (kW/ round trip). The specification of process pump is an important consideration, including process flow, process pressure pump material, rubber, mechanical shaft seal material, motor voltage, motor electrical appliances, IP grade of motor and pump. The price of water chillers is about 1 10,000 to 20,000 yuan, ranging from several thousand yuan cheaper to several tens of thousands more expensive.