Temperature control equipment offer temperature control equipment Bo Sheng Nanjing refrigeration apparatus of FIG.

Mistakes screw chiller operation Misunderstanding screw chiller operation prone: Before power is not closed shell and tube condenser inlet valve, this will result in the phenomenon of channeling water. Part of the cooling backwater flow away from the shell and tube condenser, thus reducing the cooling water flow shell and tube condenser, causing the unit condensing pressure rising, the host running current is increased, resulting in capacity loss, but also a serious screw chillers stop working. In this way, the costs of electricity, refrigeration efficiency and reduce equipment failure rate increases. Starting from the wrong operation, the host of the cooling water outlet temperature and condensing pressure. The unit will alarm, the operator will cause wrong judgment, that the cooling water is not enough, so the condenser cooling water pump inlet valve and outlet valve to open big, some cooling tower fan will be turned on, this will cause the cooling tower fan, and pump power consumption increases, the cost will increase a lot. Some operators even open the cooling water pump. To open the cooling water pump can reduce the condensing pressure and coolant temperature, pump operation of such electricity is wasted. Unit cooling water system the correct methods of operation are: a, before starting the closed shell and tube condenser inlet valve to prevent channeling water unit. b, open the valve and out of shell and tube condenser cooling water pump on, adjust the condenser inlet and outlet pressure. c, if the shell and tube condenser swing out of the water gauge pointer is too large, then there is air in the cooling water system, you need to vent gas within the unit until normal only after pressure gauge. Air-cooled screw chiller (single screw head) Features: 1. performance a major use of the latest international advanced third-generation 5: 6 asymmetric rotor semi-hermetic screw compressors, motors and compressors integration, No leakage seal of concern b. two or more compressors reasonable and balanced combination of precision control of the city head assembly of a load, to extend the service life of the unit c. two or more sets of compressors using refrigerant circuit, one of the the loop must repair and maintenance, and the remaining circuit can still be running, with a standby function d. compressor with a star delta buck starts, to avoid an impact on the grid 2. easy to install a. Unit Interface compact, small footprint, saving space b. When the whole factory has been thoroughly debugged and the timing of the operation is completed, can be used to achieve the state of the field c. vibration small unit, foundation does not require isolation measures, simple installation d. only need to connect the evaporator and chilled water installation condenser cooling water tank chiller some knowledge chiller box (Air-cooled chiller box) is a vapor compression or absorption refrigeration cycle to achieve the effect of the machine through which fluid can flow through the heat exchanger reaches the air or equipment cooling purposes. Evaporation temperature from + 8 ℃ to -110 ℃ to choose from. West Valley unit provided from the refrigerant system, electric system to fully protect the water system, fully guarantee the safe operation of the chiller box properly. Chiller box Scope box chiller using a single-stage vapor-compression circuit, and having a compressor overload protection, pump overload, reverse phase-phase warning, to prevent icing protection, low pressure protection device, machine performance and stability, long life. Quick cooling, temperature stability to meet customer requirements. Chiller | Water-cooled chiller open | Box chiller | mainly used in electroplating, electronics manufacturing, machinery processing, chemical manufacturing, plastic and rubber industry, the footwear industry.