Air cooling/heating central air-conditioning system

Abstract

The invention consists of an oil-free air compressor, an ice-ball cold-storage heat exchanger, an ice-storage tank, an ice-making system, a gas heater, a multi-functional cooling tower, an outdoor unit, a room unit, a winter-summer switcher and an adjustable timing change valve. The air intake duct of the oil-free air compressor is jointed on the top of the multi-functional cooling tower to absorb the cleaned air in the cooling tower and connected to the winter-summer switcher through the exhaust port of the compressor. In winter high temp. and pressure air is fed to the gas heater and then fed to the outdoor unit for heating and the heater air is fed again to the room unit for rising temp.. In summer the ice-ball cold-storage heat exchanger works and the output cold air is fed to the outdoor unit of the branch air pipe through the main pipeline and then fed again to the room unit for lowering temp. after separating of cold and hot air.

Description

technical field [0001] The invention relates to a central air conditioning system, in particular to an air cooling and heating central air conditioning system using air as a working medium. Background technique [0002] At present, the widely used household air conditioners using Freon as the working fluid, although the energy efficiency is relatively high, can reach 2.6 or more, that is, the higher energy efficiency ratio can be achieved under the conditions that the doors and windows are closed and there is no outdoor fresh air entering at all. This type of air conditioner has two main shortcomings: [0003] First, Freon is used as a refrigerant, and Freon is the culprit that destroys the ozone layer of the earth's atmosphere and increases the global greenhouse effect. To this end, countries all over the world have requested a deadline to stop the production and use of Freon (CFC). [0004] Second, this type of air conditioner cannot provide a large amount of fresh air, ...

AI Technical Summary

Problems solved by technology

[0004] Second, this type of air conditioner cannot provide a large amount of fresh air, and only the window air conditioner can provide a small amount of fresh air, no more than 30%

This kind of pipeline can only be hoisted on the top of the corridor, occupying the space of the corridor, making the corridor look low, making people feel depressed, and it is not beautiful, and the cost is relatively high

[0007] Second, this type of air-conditioning system only uses the cooling and heat-carrying characteristics of air, but does not use the cooling and heating characteristics of air, so its energy efficiency ratio is not high, generally between 0.6 and 0.95

Another central air-conditioning system that uses Freon or ammonia as the working fluid can only reach about 1.0 energy efficiency ratio

[0008] Third, although the absorption lithium bromide central air-conditioning system has added a corrosion inhibitor to the system, the corrosion problem of lithium bromide to the equipment has not been completely solved, especially the parts in the pipeline that are in contact with the air are prone to corrosion and affect the equipment. service life

[0009] Fourth, the equipment is relatively large, there are many pipelines, and maintenance is inconvenient

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