A composite refrigeration multi-connected air-conditioning system

Abstract

The invention discloses a composite refrigeration multi-connected air-conditioning system, which is characterized in that the multi-connected air-conditioning system is equipped with two or more outdoor composite refrigeration modules on the outdoor side to form the cold source system of the multi-connected air-conditioning system, and the outdoor composite The type refrigeration module is composed of the vapor compression refrigeration cycle circuit of the first refrigerant and the second refrigerant cycle circuit. One or more direct evaporative indoor air cooler modules are installed on the indoor side. The main pipe and the air return main pipe are connected between the outdoor composite refrigeration module and the indoor air cooler module to form a closed circulation system. The present invention configures the number of indoor and outdoor modules according to the design thermal load of the air-conditioning object, precisely adjusts the cooling capacity, and meets the thermal control requirements of various all-weather data computer rooms and electronic equipment; Cold source, to achieve substantial energy saving and emission reduction of the air conditioning system.

Description

technical field [0001] The invention relates to the technical field of refrigeration and air conditioning, in particular to a composite refrigeration multi-connected air conditioning system capable of maximizing the use of natural cooling sources to transport heat at low cost. Background technique [0002] The rapid development of information industry and digital construction has promoted the number of data computer rooms and communication base stations, and the construction scale has grown rapidly. According to statistics, the energy consumption of computer rooms and base station air conditioners accounts for 40% to 50% of the total energy consumption. The sensible heat load ratio of computer rooms and base stations is large, and continuous cooling operation is required throughout the year. In the seasons when the indoor temperature is higher than the outdoor ambient temperature, especially in low-temperature seasons or cold regions, conventional air-conditioning systems for...

AI Technical Summary

Problems solved by technology

This system makes up for the deficiencies of the previous two systems in terms of utilizing the cooling capacity of outdoor low-temperature air and ensuring indoor air quality. It has not been fully utilized; for the air conditioning system that implements GB / T 19413-2010, since the indoor temperature is set at 24°C, the outdoor ambient temperature when the compression refrigeration is converted to the heat pipe circulation refrigeration must be very low, and the utilization rate of the natural cooling source is low

[0007] Utility model patent ZL01278831.7 discloses an energy-saving refrigeration cycle device with a circulation pump. The use of a circulation pump in the heat pipe circulation system is conducive to improving the efficiency of the heat pipe cycle, and also simplifies the installation of the heat pipe system. However, ZL01278831.7 is similar to CN201010528027.X in terms of maximizing the use of the cooling capacity of outdoor low-temperature air, that is, the upper limit temperature of the heat pipe cycle must be low to smoothly connect with the refrigeration cycle

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