Energy-saving air conditioner system

Abstract

The invention discloses an energy-saving air conditioner system, which comprises an indoor machine, an outdoor machine and a pump circulation system which are connected through pipelines. The indoor machine comprises a compressor, an evaporator an indoor fan and an expansion valve. The outdoor machine comprises a condenser and an outdoor fan. The energy-saving air conditioner system is characterized in that the pump circulation system comprises a liquid storage tank (13), a refrigeration agent pump (14), a multiplex pump circulation evaporator (17) and a multiplex pump circulation condenser (10) which are sequentially connected through pipelines, wherein the multiplex pump circulation evaporator is integrated with the evaporator (4) of the indoor machine, and the multiplex pump circulation condenser is integrated with the condenser (8) of the outdoor machine. Pump circulation refrigeration and compressor refrigeration are intelligently combined, thereby achieving energy-saving running of a data center.

Description

technical field [0001] The invention relates to an energy-saving air-conditioning system, in particular to an energy-saving air-conditioning system with refrigerant pump circulation. Background technique [0002] In data centers, the energy consumption of computer room air conditioners accounts for more than 40% of the total energy consumption, which is quite a large proportion. Therefore, the energy-saving operation of computer room air conditioners is an important breakthrough point for various operators to save energy and reduce emissions. [0003] At present, the methods of using natural cooling sources for refrigeration usually include traditional fresh air, air heat exchange, glycol cooling and other energy-saving refrigeration technologies, while the pump cycle refrigeration technology makes full use of the latent heat of the refrigerant for high efficiency of heat exchange, and the same cooling capacity The circulating power of the pump is much smaller than the opera...

AI Technical Summary

Problems solved by technology

[0005] 1. To integrate the pump cycle in the original air-conditioning and refrigeration system of the computer room, each refrigeration system must be equipped with a pump cycle system. The design of the unit system is complicated, the cost is relatively high, and the user invests a lot; When the compressor is switched between operations, the reliability design of the computer room air conditioner will face greater challenges;

[0006] 2. The refrigerant pump is usually characterized by a large flow rate, while the flow rate of a single refrigeration system of a computer room air conditioner is usually not large, and is often in the small flow area of ​​the refrigerant pump characteristic curve, causing the operating point of the pump itself to deviate from the optimal operating point. That is to say, the big horse-drawn cart, the efficiency is greatly reduced;

[0007] 3. Since the compressor system and the pump circulation system share a set of evaporator and condenser, switching operation is required, and simultaneous operation cannot be realized, which will be greatly limited in high heat density applications

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