Mistakes screw chiller operating screw chiller operation prone Misunderstanding: Before power is not closed shell and tube condenser inlet valve glass industrial temperature control machine, this will cause the phenomenon of channeling water. Part of the cooling backwater flow away from the shell and tube condensers, thus reducing the cooling water flow temperature control circuit board production machine shell and tube condenser, causing the unit condensing pressure rising, the host running the current increases, resulting in cooling capacity decline, but also a serious screw chillers stop working. In this way, the costs of electricity, so that the temperature of the food industry to reduce cooling efficiency control machines, equipment failure rate increases. Start 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, and some will turn on the cooling tower fan, this will result in a cooling tower fan, and pump power increases, the cost will increase a lot. Some operators even open cooling water pump. To open the cooling water pump can reduce the condensing pressure and coolant temperature, so the pump is running electricity is wasted. Unit cooling water system is the correct method of operation: a, before starting the closed shell and tube condenser inlet valve to prevent channeling water unit. b, open the valve and out of the cooling water pump control unit on the shell and tube condenser, adjust the condenser inlet and outlet pressure. c, if the shell and tube condenser water inlet and outlet pressure gauge pointer swing is too large, then there is air in the cooling water system, you need to empty the gas within the unit, to be normal only after the pressure gauge. Chiller is a vapor compression or absorption refrigeration cycle to achieve the effect of the machine through. The liquid can flow through the heat exchanger reaches or equipment for the purpose of cooling air. Vapor compression chillers comprises four main components of the vapor compression refrigeration cycle (compressor, evaporator, condenser, metering device forms part), these machines can implement different refrigerants. Benign refrigerant and urban water absorption chillers using silica as a desiccant. Absorption chillers using water as a refrigerant, and rely on between water and lithium bromide solution, in order to achieve a strong affinity for the cooling effect. In most cases, pure water is chilled, but the water may also contain a percentage of ethylene glycol and / or corrosion inhibitors; such as thin oil, and other liquids can be chilled. Jiangsu control machine | glass industrial temperature control machine | Bo Sheng refrigeration equipment (certified merchants) provided by Refrigeration Equipment Co., Ltd. Nanjing Bo Sheng. Refrigeration Equipment Co., Ltd. Nanjing Bo Sheng (www.zgwksb.com) is specialized in "industrial temperature control equipment, industrial refrigeration equipment," the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Mei.