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Fresh air treatment device for indirect evaporative cooling return air total heat recovery

A technology for fresh air treatment and evaporative cooling, applied in heat recovery systems, energy recovery systems for ventilation and heating, energy-saving heating/cooling, etc.

Active Publication Date: 2015-03-25
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above background technology, there is no fresh air treatment device that combines condensation dehumidification and evaporative cooling

Method used

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  • Fresh air treatment device for indirect evaporative cooling return air total heat recovery
  • Fresh air treatment device for indirect evaporative cooling return air total heat recovery
  • Fresh air treatment device for indirect evaporative cooling return air total heat recovery

Examples

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0024] figure 1 Shows the schematic diagram of the fresh air treatment device for return air full heat recovery (water circulation heat recovery), the device includes a return air treatment system and a fresh air treatment system, and the return air treatment system includes return air-water heat exchangers 1 connected in sequence , the spray packing module 2 and the exhaust air-water heat exchanger 6, the fresh air treatment system includes the air supply-water heat exchanger 3, the surface cooler 4 and the fresh air-water heat exchanger 5 connected in sequence, the return The water circulation connection between the air-water heat exchanger 1 and the corresponding air-water heat exchanger 3, the water circulation connection between the spray packing module 2 and the corresponding fresh air-water heat exchanger 5, the air exhaust-water The water circulation...

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Abstract

The invention discloses a fresh air treatment device for indirect evaporative cooling return air total heat recovery. The fresh air treatment device is composed of a sensible heat recovery device for supply air and return air, a return air total heat recovery device, an air treatment device and the like. The sensible heat recovery device is adopted for the fresh air treatment device, the supply air low in temperature is used for cooling the indoor return air, a state point of the return air is close to a saturation line before the return air enters the total heat recovery device, and therefore the total heat recovery process of fresh air and the return air is close to the saturation line, and the efficiency of the total heat recovery device is improved. Meanwhile, the supply air temperature of the fresh air is increased, and the fresh air can be fed indoors directly. Through the fresh air treatment device, recoverable energy of the return air is fully used, the input cooling capacity of a cold source is reduced, and the energy efficiency of the fresh air treatment device is improved. In addition, through working condition switching, the fresh air treatment device can have the functions of recovering heat of the return air and heating and humidifying the fresh air in winter.

Description

technical field [0001] The invention belongs to the field of heating, ventilating and air-conditioning systems, and relates to a fresh air processing device for recovering full heat of return air. Background technique [0002] In the air conditioning system, according to the requirements of the current national health standards, a certain amount of fresh outdoor air (fresh air) needs to be supplied to the room. National HVAC-related standards generally stipulate the minimum fresh air volume (m 3 / h). Due to the temperature, humidity and dust content, the outdoor fresh air usually cannot be directly sent into the room, and must be subjected to heat and humidity treatment. During the cooling season, the outdoor air is usually high temperature and high humidity, which requires cooling and dehumidification of the outdoor air; during the heating season, the outdoor air is usually low temperature and low humidity, and the outdoor air needs to be heated and humidified. Heat an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F12/00
CPCF24F3/147F24F12/001Y02B30/56
Inventor 张伦张小松
Owner SOUTHEAST UNIV
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