Operation method of efficient refrigerating system of high-pressure power source

Abstract

The invention relates to an efficient refrigerating system and an efficient refrigerating working method of a high-pressure power source, belonging to the field of safety rescue and environmental control engineering. The refrigerating system comprises an evaporating refrigerating unit which sequentially consists of a first evaporator (7), a compressor (8), a condenser (5) and an expansion valve (6), as well as a power generating device, and is characterized in that the power generating device is connected with the evaporating refrigerating unit, and sequentially consists of a liquefied gas storage tank (1), a gas-liquid converter (2), a turbine (3) and a second evaporator (4), wherein the outlet of the second evaporator (4) is connected with the cold edge of the condenser (5); the system also comprises a fan; and the turbine (3), the condenser (8) and the fan (9) work coaxially. The non-electric efficient refrigerating system has a simple structure and strong applicability, and is applicable to closed spaces such as mines, submarines and the like.

Description

Technical field [0001] The invention relates to a working method of a high-efficiency refrigeration system of a high-pressure power source, belonging to the field of safety lifesaving and environmental control engineering. Background technique [0002] In recent years, mining accidents have occurred frequently, and it is imperative to provide life-saving emergency avoidance facilities for those in distress who cannot evacuate in time after a mining accident occurs. Externally, the facility is required to be able to resist high-temperature smoke and isolate toxic and harmful gases. Internally, it is required to provide oxygen, food, water, remove toxic and harmful gases, create basic conditions for survival, create conditions for emergency rescue, and win time. At present, emergency refuge facilities mainly include permanent refuge chambers, temporary refuge chambers, and mobile rescue cabins. The ambient temperature control mainly adopts three methods: ice storage, electric ...

AI Technical Summary

Problems solved by technology

[0003] For the ice storage method, due to the low storage temperature of the ice, it is necessary to continuously store the ice during normal maintenance, which has a high failure rate and consumes a lot of power. At the same time, during use, as the ice melts, the temperature in the rescue cabin will gradually increase. , the cabin temperature is not stable enough

Electric cooling method, the battery is bulky and requires explosion-proof treatment, which is expensive, and when the external environment temperature is high, the energy efficiency ratio of the air conditioner will be greatly reduced, and it may even not work normally

Open liquefied gas expansion refrigeration method, although the temperature control in the cabin is stable and the performance is reliable, but the volume of liquefied gas required is large, and the energy cannot be fully utilized when the storage environment temperature is high

Images