Full-effect multi-mode energy-saving air conditioning system

Abstract

The invention discloses a full-effect multi-mode energy-saving air conditioning system. The system comprises an outdoor main machine and an indoor unit, the outdoor main machine comprises a refrigerating system and a heat pipe condensation section heat exchanger; the high-temperature side of the refrigeration system and the heat pipe condensation section heat exchanger are arranged in an air channel area; a first working medium channel and a second working medium channel which can exchange heat with each other are arranged in the refrigerating end heat exchanger, the first working medium channel is arranged in the refrigerating system in series, and the second working medium channel is arranged in the heat pipe system in series; the indoor unit is at least one indoor heat pipe device, anda liquid storage tank and a working medium pump are further arranged in the outdoor main machine; and the heat pipe condensation section heat exchanger communicates with the second working medium pipeline of the heat pipe system through a pipeline, and a heat pipe system is formed by combining the opening and closing of a first cut-off valve and a second cut-off valve to enable the refrigerating system and / or the heat pipe condensation section heat exchanger to be as a cold source. The air conditioning system can provide multi-mode operation suitable for various different season environments,and is more complete and energy-saving.

Description

technical field [0001] The invention relates to an air-conditioning system, in particular to an air-conditioning system suitable for a machine room environment. Background technique [0002] With the development of social informatization, the number of information facilities such as data centers and base stations of various sizes has increased rapidly, and the heat generation of various IT equipment has also doubled. At present, the energy consumption of precision air conditioning and refrigeration in data centers has It has become the second largest energy-consuming item next to IT equipment. Therefore, the energy-saving design of precision air conditioners is of great significance. [0003] Different from conventional comfort air conditioners, the IT equipment and auxiliary equipment in the data center computer room generate heat throughout the year, and need cooling and heat dissipation no matter in winter or summer. However, when the outdoor temperature is low in winter ...

AI Technical Summary

Problems solved by technology

[0006] Its advantage is that the heat source and cold source air directly exchange heat, and the heat exchange efficiency is high. The disadvantage is that due to the small specific heat capacity of the air (about 1.005kj / kg.℃), a large air flow rate is required to obtain sufficient cooling, so the unit and connection The air duct is huge and can only be installed close to the machine room, and a huge air outlet must be prefabricated on the wall or roof. The building of the machine room often cannot provide suitable installation conditions, and the application occasions are severely limited

[0007] 2. Directly introduce low-temperature fresh air: This method is the most direct, but the data center has high requirements for stability and reliability. There are many uncontrollable factors in the fresh air, such as dust, acid gas, corrosive gas, humidity, etc., and it is sent directly or through general filtration There is a greater risk in sending it to the computer room after processing, so there are few practical applications

[0010] To sum up, the current commonly used methods include the emerging natural cooling methods, which have many problems and cannot use natural cooling sources stably and efficiently.

[0011] On the one hand, there are various disadvantages in the existing schemes, and on the other hand, the research on more environmentally friendly natural refrigerant refrigerants is in the ascendant, such as R744 (ie CO 2 ) cannot be widely used due to its critical temperature and working pressure; therefore, there is an urgent need for a new type of energy-saving air-conditioning unit that can solve the above problems and realize the application of new working fluids

Images