Heat pipe natural cooling evaporative-type condensation water chiller and control method thereof

Abstract

The invention relates to the technical field of refrigeration, and particularly discloses a heat pipe natural cooling evaporative-type condensation water chiller. The heat pipe natural cooling evaporative-type condensation water chiller comprises a mechanical refrigeration system which is composed of a compressor, a condenser, a flow controller and an evaporator. The heat pipe natural cooling evaporative-type condensation water chiller further comprises a secondary circulation system used for conducting heat exchange with the evaporator. The secondary circulation system is provided with a natural cooling system capable of controlling the flowing direction of refrigerant in the secondary circulation system so as to conduct heat exchange with the refrigerant. The flow controller of the mechanical refrigeration system is connected with a flow controller bypass electromagnetic valve in parallel, and the compressor of the mechanical refrigeration system is connected with a compressor bypass electromagnetic valve in parallel. The mechanical refrigeration system, the secondary circulation system and the natural cooling system are electrically connected with a controller, and the controller controls all the systems to operate. By means of the heat pipe natural cooling evaporative-type condensation water chiller, an efficient evaporative-type condensation technology is adopted, the energy efficiency ratio of a unit is increased obviously, the cooling capacity of a low-temperature environment can be obtained through the natural cooling system when the outdoor environment temperature is lower, usage of the mechanical refrigeration system is reduced to the maximum degree and even stopped completely, and therefore operation energy consumption of the unit is reduced and the energy-saving effect is obvious.

Description

technical field [0001] The present application relates to the technical field of refrigeration, in particular to a heat pipe natural cooling evaporative condensation chiller and a control method thereof. Background technique [0002] In current communication equipment rooms, especially large data centers, air-cooled chillers are generally used as cold sources to provide chilled water for the indoor terminals of the air-conditioning equipment in the communication equipment room, thereby cooling down the indoor environment of the communication equipment room. Since the communication equipment in the communication room is basically in a state of uninterrupted operation throughout the year, and the heat generation is very large, therefore, the air-cooled chiller used in the communication room generally needs to be refrigerated throughout the year, and the energy consumption is large. The energy efficiency ratio is low. [0003] Moreover, since the air-cooled chiller still needs...

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Problems solved by technology

However, in the northern region, since the lowest temperature at night in winter is -20~-30°C, and the temperature is even lower in extreme weather, the water cooling method is adopted, and antifreeze measures must be considered for the cooling tower, and the antifreeze effect is general, which is not ideal. It is necessary to add high-concentration antifreeze to the circulating water of the cooling tower and the pipeline, which not only increases the investment but also corrodes the pipeline and equipment

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