Device for preparing liquid water by air

Abstract

The invention discloses a device for preparing liquid water by air, comprising motors which are in coaxial connection, an air compressor and an expansion engine, an aftercooler, a main prepared water device, an auxiliary prepared water device and a water tank. Firstly, the air compressor is used for improving the air pressure so as to increase the air relative humidity; under the same condition of temperature reduction, the water vapor is easier to be separated from the air; secondly, the expansion engine is used for obtaining the low temperature air which is used for reducing the air temperature of preparation water in the thermal side channels of the main prepared water device and the auxiliary prepared water device; and simultaneously, the device is provided with a defrosting channel which is used for melting ice or frost on the wall surfaces of the thermal side channels of the prepared water devices into liquid water. Comparing with the refrigerating preparation water scheme with Freon, the invention adopts an opened air refrigeration cycle, thus the whole device has reliability and safety, long operation life and small maintenance working capacity, considers sufficiently the comprehensive utilization of cooling capacity and improves the integrated performance of the system.

Description

technical field [0001] The invention belongs to the technical field of air conditioning and dehumidification, and relates to a water production device, in particular to a device for producing liquid water in the air. Background technique [0002] Fresh water is an important material for human beings to survive. However, when working in arid areas in the wild, especially in desert areas for a long time, the way to obtain water is mainly to rely on a small amount of rainfall accumulation or replenishment from the base. However, even the annual average relative humidity of the air in the desert is about 20-30%, so the air contains a certain amount of water vapor, especially at night, the relative humidity will be greater, so certain technical means can be used to reduce the humidity in the air The water vapor is extracted and converted into liquid water for people's daily use. [0003] At present, the methods of producing water from the air are mainly two categories: adsorptio...

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Problems solved by technology

[0004] However, there are some deficiencies in the current refrigeration water production equipment. For example, most of the refrigeration methods use Freon refrigeration systems. There is a risk of working medium leakage after long-term operation in the field, and maintenance is relatively difficult. If semiconductor refrigeration is used, the efficiency is too low.

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