Heyuan City, chilled water machine, water chilled water machine, Snow Dragon chilled water cooling maintenance (certified merchants) provided by the Dongguan City-long Refrigeration Electrical and Mechanical Equipment Engineering Co., Ltd .. Dongguan City-long Refrigeration Electrical Equipment Engineering Co., Ltd. (www.dgxuelong.com) is a professional engaged in "sales, installation, maintenance, electrical and mechanical equipment (excluding Holds for repair of electrical equipment), refrigeration equipment," the business, the company adhering to the "integrity management, service intentions, "the idea, to provide you with the highest quality products and services. Welcome to inquire! Contact: Mr. Fu. Product Name: Water-cooled screw chiller Usage: used in electronics, plastics, pharmaceuticals, metallurgy, etc., can increase productivity! Scope: central air conditioning system or large industrial refrigeration Details: 1. chiller selection should be based on the cooling load and use to consider. For a long time the low load operating conditions of the refrigeration system, should use multi-head piston compressor or screw compressor industrial chilled water machine, easy to adjust and energy. 2. The main control parameters screw chillers for cooling coefficient of performance, the rated cooling capacity of water chilled water machine, the input power and the refrigerant type. 3. Use chillers, you should pay attention to the normal operating range of the model units, mainly the main motor current limit is the current value of the nominal operating conditions of shaft power. 4. Selection chillers, you should pay attention to the conditions of the nominal operating conditions. The actual cooling capacity chiller with the following factors: 1) cold water temperature and flow; 2) cooling water inlet temperature, flow and fouling factor. 5. The selection of chillers, the priority higher coefficient of performance units. According to statistics, the annual general chillers run at 100% load time accounted for less than 1/4 of the total running time. The total running time of 100%, 75%, 50%, 25% load run time ratio of approximately 2.3%, 41.5%, 46.1%, 10.1%. Therefore plating chilled water machine, the choice should be given priority chiller efficiency curve is relatively flat models. Meanwhile, in the design selection should consider adjusting range chiller load. Part load performance multi-head screw chillers good, can be selected according to the actual situation. 6. In the design selection should be noted: In the name of the traffic conditions, the cold water outlet temperature should not exceed 16 ℃, air-cooled unit outdoor dry bulb temperature should not exceed 42 ℃. If the water-cooler must exceed the range, should be aware of whether to allow the use of compressors, the main motor with power is adequate. Hung Fung brand frozen water machine Note: water-cooled chiller needs and outdoor cooling towers, circulating pumps used in conjunction with, the user needs based on water-cooled chiller cooling requirements, and select the appropriate cooling towers, circulating water pump; keep the cooling tower and cooling water Cleaning is very important, the cleanliness of the cooling water will affect the water-cooled chiller life. Recommended corresponding filter facilities, and water added preservatives, corrosion inhibitors, such as the isothiazoline-one and the like;