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Air-quality controlling system of central air-conditioner

A technology for air quality and control systems, applied in air conditioning systems, heating methods, space heating and ventilation, etc., can solve problems such as indoor air pollution, and achieve the effect of avoiding sick building syndrome

Inactive Publication Date: 2005-02-23
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the indoor air pollution problem in the centralized air conditioning system, improve the indoor air quality, and provide people with a good indoor environment

Method used

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  • Air-quality controlling system of central air-conditioner
  • Air-quality controlling system of central air-conditioner
  • Air-quality controlling system of central air-conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] exist figure 1 In the air-conditioning system shown, the combined air-conditioning unit 2 is processed to a suitable temperature and humidity, and then mixed with the oxygen prepared by the oxygen generator 1 and sent to the air-conditioned room 4 . The oxygen generating device in the system adopts PSA, VSA and VPSA and other pressure swing adsorption oxygen generating devices, and uses zeolite molecular sieve as the adsorbent. The oxygen concentration produced by the oxygen generator is 40%-96%.

Embodiment 2

[0021] exist figure 1 In the air conditioning system shown, the oxygen generator adopts figure 2 The shown PSA pressure swing adsorption oxygen plant uses zeolite molecular sieve as the adsorbent. The air is compressed by the compressor 9, filtered by the dry filter 10 and enters the air storage tank 11, and oxygen is separated in the adsorption towers 12 and 13. The operation of the device is controlled by the oxygen meter 8 and the transmitter 7, and the oxygen concentration produced by the oxygen generator is 40%-96%. An air purification system 3 can be added to the system. The purification technologies used in this system include fiber filtration, activated carbon adsorption, non-equilibrium plasma purification, photocatalytic technology, negative ion purification, ozone purification and other technologies or their composite technologies.

Embodiment 3

[0023] exist figure 1 In the air conditioning system shown, the oxygen generator adopts image 3 The shown VSA pressure swing adsorption oxygen plant uses zeolite molecular sieve as the adsorbent. The air is pressurized by the blower 20, filtered by the filter 21 and enters the air storage tank 22 (optional), and oxygen is separated in the adsorption towers 23 and 24, and the oxygen enters the air conditioning duct through the oxygen storage tank 25, the flow meter 29, and the shut-off valve 30 , When the adsorption towers 23 and 24 are desorbed, they are desorbed under negative pressure by the vacuum pump 31. The operation of the oxygen generator is controlled by the oxygen meter 8 and the transmitter 7, and the oxygen concentration produced by the oxygen generator is 40%-96%. An air purification system 3 can be added to the system. The purification technologies used in this system include fiber filtration, activated carbon adsorption, non-equilibrium plasma purification, p...

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Abstract

An air quality control for central air conditioning system consists of an air conditioning set, rooms, ventilating valves, fresh-air valves, an oxygen-producing unit, air-purifying unit, a transducer, and an oxygen detector. Air is treated to be suitable temperature and moisture, mixed with oxygen and then provided into rooms. The oxygen plants may be PSA, VSA, and VPSA pressure varied adsorbing plants and membrane separation style oxygen plants to produce 30 - 40% oxygen. The system can keep normal value of oxygen concentration in air of rooms, and reduce pollutants.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a control technology for regulating and controlling indoor air quality through a centralized air conditioner. Background technique [0002] The quality of indoor air directly affects people's physical and mental health and work efficiency. Fresh air makes people feel refreshed, comfortable physically and mentally, not easy to get tired, and improves work efficiency. Unclean air not only endangers human health, but also causes damage to ecosystems and property losses. With the increasing popularity of air conditioners and the wide application of a large number of new building decoration materials, the indoor air pollution has further aggravated, and the problem of indoor air quality has become more prominent. From the perspective of energy saving, the airtightness of buildings using air-conditioning systems is getting better and better, although in some air-co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/16
Inventor 刘应书崔红社刘文海杜雄伟赵华张德鑫
Owner UNIV OF SCI & TECH BEIJING
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