Evaporative condensate pump circulating year-round refrigeration device

Abstract

The invention discloses an evaporative condensate pump circulating year-round refrigeration device, which comprises a liquid pump driven refrigeration cycle and a liquid supply steam compressed refrigeration cycle, wherein the liquid pump driven refrigeration cycle consists of a circulating liquid storage pump, a liquid pump, an evaporator, a first liquid pump refrigeration valve, a gas-liquid separator, a second liquid pump refrigeration valve, an evaporative condenser, a third liquid pump refrigeration valve and a fourth liquid pump refrigeration valve; the liquid supply steam compressed refrigeration cycle consists of a compressor, a high-pressure gas valve, an evaporative condenser, a high-pressure liquid valve, a throttling device, a circulating liquid storage barrel, a liquid pump, an evaporator, a first low-pressure gas valve and a second low-pressure gas valve; and the two cycles can be switched according to the use requirement, and a liquid refrigerant is conveyed to the evaporators by using the liquid pumps. Compared with the prior art, the evaporative condensate pump circulating year-round refrigeration device provided by the invention has the advantages of higher heat exchange efficiency, safe and reliable use and capability of efficiently and stably using outdoor natural cold quantity of winter and transition seasons.

Description

technical field [0001] The invention relates to a liquid pump circulation refrigeration device, in particular to an evaporative condensate pump circulation year-round refrigeration device suitable for year-round cooling spaces such as data machine rooms, computer centers and building inner areas. Background technique [0002] With the development of communication technology, the advent of the 3G network era and the rapid growth of Internet business demand, various high-density heating computer rooms, including IDC computer rooms, computer centers, server computer rooms, etc., are increasing day by day. Take the data computer room as an example. The electronic communication equipment inside the computer room generates large and concentrated heat. The heating intensity per square meter of the building can reach hundreds of watts or even thousands of watts, and it runs continuously throughout the year. Therefore, the computer room generally needs to be equipped with year-round c...

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Problems solved by technology

[0003] The traditional natural circulation of heat pipes has a good energy-saving effect, but there are two disadvantages: one is that it is necessary to provide system pipes and valves with larger diameters than summer refrigeration, which increases the cost and occupies more space; Insufficient refrigerant power and low circulation volume, etc., resulting in reduced heat transfer efficiency and limited cooling effect

[0004] In addition, the existing liquid supply method of the evaporator also has many shortcomings. The energy efficiency ratio of the dry system is low, and the liquid level control and oil return are difficult in the flooded system. Therefore, the market needs higher heat exchange efficiency and safety. Reliable evaporator liquid supply system improves the heat exchange efficiency of the evaporator

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