Ventilating and air-conditioning cooling method and device of underground engineering

Abstract

The invention relates to a ventilating and air-conditioning cooling method of underground engineering for cooling an air-conditioning reservoir of an air-conditioning refrigeration system in underground engineering, wherein heat of condensation is dispersed into the air-conditioning reservoir. A heat pump cooling system is adopted to cool the air-conditioning reservoir, wherein an evaporator of the heat pump cooling system is directly used for cooling the air-conditioning reservoir. Two sets of condensers of the heat pump cooling system are connected in series, wherein the first set of the condensers are air-cooled condensers, and air outlets of the air-cooled condensers are led to the outside of the underground engineering; and the second set of the condensers are arranged at an air inlet of the underground engineering to heat fresh air entering from the outside of the underground engineering so as to ensure that the relative humidity in the underground engineering is not lower than 70 percent. The invention provides a method and a device, which are used for the ventilation of the traditional underground engineering and adopt a cooling medium of an active central air-conditioning to cool. A cooling device is arranged underground, and under the condition of small air inlet and outlet amount of the device, the relative humidity in the underground engineering does not exceed 70 percent.

Description

technical field [0001] The invention relates to an underground engineering ventilation and air-conditioning cooling method and device, in particular to a cooling method and a cooling device for an air-conditioning reservoir of an underground engineering under the condition of limited ventilation. Background technique [0002] In the design of traditional underground protection projects, it is considered that the underground has constant temperature conditions, and generally no special design for air conditioning is given; with the expansion of the development and utilization of underground engineering area, due to the increase in the use of electrical appliances and communication equipment, the heat load of air conditioning in the project has increased sharply The temperature and humidity of the underground project will increase in summer, and the temperature of the air-conditioning reservoir in the project will rise rapidly. As a result, the water replenishment of the origin...

AI Technical Summary

Problems solved by technology

However, the air intake and exhaust volume of the exhaust fan room of the underground project is very small, about 3000m3 / 100kw heat, and the air conditioning cooling tower (including the existing evaporative cooling tower) in the first shift has no way to discharge the condensation heat in the project out of the project; In addition, there are other electrical equipment in the exhaust fan room in the project. The air entering in summer will condense on the inner wall of the project, and it is not allowed to directly enter the fresh air.

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