Double-cold-source heat pump total heat recovery humidity regulating and temperature controlling fresh air unit and control method thereof

A technology of total heat recovery and fresh air unit, applied in heating mode, heat recovery system, space heating and ventilation, etc. Air humidity difference and uneven temperature difference, etc., to achieve the effect of improving indoor air quality and reducing energy consumption

Inactive Publication Date: 2012-10-03
吕智 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the essence of the low heat utilization efficiency of the rotary dehumidifier is that the two processes of dehumidification and regeneration are isenthalpic processes rather than isothermal processes. Th

Method used

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  • Double-cold-source heat pump total heat recovery humidity regulating and temperature controlling fresh air unit and control method thereof
  • Double-cold-source heat pump total heat recovery humidity regulating and temperature controlling fresh air unit and control method thereof
  • Double-cold-source heat pump total heat recovery humidity regulating and temperature controlling fresh air unit and control method thereof

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] see figure 1 , the dual cold source heat pump full heat recovery humidity control temperature control fresh air unit is composed of an exhaust part, a fresh air processing part, a surface heat exchanger and a heat pump system. The heat pump system includes a compressor 1, a four-way valve reversing valve 10, a condenser 2, an evaporator 4, a condensation heat recovery device 5 and a throttling component 9, and the condensation heat recovery device 5 is arranged at the fresh air outlet; the exhaust part is composed of The exhaust fan 3 is executed; the surface heat exchanger is arranged at the fresh air inlet; the fresh air processing part includes the fresh air fan 6 and the humidifier 12.

[0021] The c port of the four-way reversing valve 10 is connected to one end of the condenser 2, the a port is connected to the exhaust port of the compress...

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Abstract

The invention discloses a double-cold-source heat pump total heat recovery humidity regulating and temperature controlling fresh air unit and a control method thereof, and belongs to the fields of energy utilization technology and air conditioning. The fresh air unit comprises an air exhaust part, a fresh air treatment part, a surface heat exchanger and a heat pump system, wherein the heat pump system comprises a compressor, a condenser, a condensation heat recoverer, an evaporator and a throttling component. The fresh air unit utilizes indoor low-temperature and low-humidity exhausted air to exhaust condensation heat of a refrigeration system in summer, and utilizes indoor high-temperature and high-humidity exhausted air to exhaust evaporation cold energy of the refrigeration system in winter. The surface heat exchanger aims at performing pre-cooling and pre-dehumidification to high-temperature and high-humidity fresh air through chilled water dew point temperature. The heat pump system provides required cold energy and heat as well as the lower dew point temperature that the chilled water is unaccessible to for the fresh air treatment part.

Description

technical field [0001] The invention relates to a heat pump full heat recovery fresh air treatment unit, in particular to a double cold source heat pump full heat recovery humidity adjustment temperature control fresh air unit and its control method. Background technique [0002] Most of the air-conditioning systems in civil buildings in my country adopt the mixed mode of fresh return air. Since most of the air circulates indoors, pollutants cannot be discharged outdoors quickly, which is harmful to human health. Increasing the fresh air volume (or adopting fresh air operation mode) can dilute indoor harmful substances and discharge them outdoors, significantly improving indoor air quality. But on the other hand, the increase of fresh air volume greatly increases the energy consumption of fresh air processing. In addition, chilled water or direct evaporation dehumidification methods are mostly used for air treatment. This air-conditioning method has the following disadvanta...

Claims

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Application Information

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IPC IPC(8): F24F3/147F24F12/00
CPCY02B30/52Y02B30/563Y02B30/56
Inventor 贺建鑫潘京平吕智刘湘辉刘波
Owner 吕智
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