Chiller, refrigeration plant-long water-cooler (certified), Xiegang chilled water machine 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, easy to adjust and energy. 2. The main control parameters screw chillers for cooling coefficient of performance, rated cooling capacity, input power and refrigerant type. 3. Use chillers, you should note that the model unit of the normal operating range of chilled water machine, mainly the main motor current limit is the current value of the nominal operating conditions of shaft power. Chilled water machine manufacturing, attention should be nominal operating conditions conditions 4. chiller selection. 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 air-cooled chiller chiller when a higher priority to the performance coefficient of the unit. 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, 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 Carrier chiller, cold water outlet temperature should not exceed 16 ℃, air-cooled unit outdoor dry bulb temperature should not exceed 42 ℃. If the need exceeds the above range, you should understand the use of range of the compressor is allowed, the main motor with power is adequate. Constant temperature and humidity hot and cold shock box structure and technical features of the device into a high temperature, low temperature zone, three-part test area, off the heat with a unique structure and regenerative thermal storage effect, the test analytes completely still, cold air path switching applications way to import the test product, do hot and cold impact test. Shock Temperature range: high temperature segment: 60 ℃ ~ 150 ℃ / low temperature segment: -10 ℃ ~ -60 ℃ hanging bar moving time: ~ low temperature trough trough hanging bar within 10 seconds Dimensions: W50 × H50 × D40 cm External dimensions: W140 within × H185 × D140 cm box Material: Stainless steel plate (SUS # 304) Carton Material: Stainless steel plate (SUS # 304) high-temperature bath temperature setting range: + 60 ℃ ~ + 200 ℃ temperature tank heating time: RT (room temperature) to + 200 ℃ about 45 min (room temperature + 10 ~ + 30 ℃ when) low bath temperature setting range:. -65 ℃ ~ -10 ℃ low slot cooling time: RT (room temperature) ~ -75 ℃ about 95 min (room temperature + 10 ~ + 30 ℃ when) Temperature fluctuation:. ± 1.0 ℃ temperature uniformity:. ± 2.0 ℃ impact normalized complex time: high and low impact each holding time of 30min or more -60 ~ + 150 ℃ about 5min (no load).