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An energy-saving method for an air-conditioning fresh air system and a cascaded fresh air load processing device

A fresh air system and processing device technology, which is applied in the fresh air load cascade processing device and the energy-saving field of the fresh air air-conditioning system, can solve the problem of high energy consumption of the cold radiation air-conditioning system, and achieve the goal of improving the overall cooling efficiency, increasing the average energy efficiency ratio, and saving waste Effect

Active Publication Date: 2018-10-16
广州市设计院集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to provide an energy-saving method for the air-conditioning fresh air system in order to solve the problem of high energy consumption of the current temperature and humidity independent control air-conditioning system and cold radiation air-conditioning system

Method used

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  • An energy-saving method for an air-conditioning fresh air system and a cascaded fresh air load processing device
  • An energy-saving method for an air-conditioning fresh air system and a cascaded fresh air load processing device
  • An energy-saving method for an air-conditioning fresh air system and a cascaded fresh air load processing device

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specific Embodiment 1

[0031] refer to figure 1 , the fresh air load cascade processing device of the air-conditioning fresh air system involved in this embodiment includes a combined fresh air conditioner 1, a non-contact exhaust heat recovery mechanism 2 and a heat recovery circulation pump 3; the combined fresh air conditioner 1 fresh air inlet 1. Fresh air outlet, a fresh air precooling unit is installed at the fresh air inlet, a fresh air reheating unit is installed near the fresh air outlet, and a fresh air surface cooling unit is arranged between the fresh air precooling unit and the fresh air reheating unit; The heat exchange carrier output port of the pre-cooling unit is connected to the heat exchange carrier input port of the non-contact exhaust air total heat recovery mechanism 2, and the heat exchange carrier output port of the non-contact exhaust air total heat recovery mechanism 2 is connected through the heat recovery circulation pump 3 The heat exchange carrier input port of the fres...

specific Embodiment 2

[0059] refer to Figure 5 , The feature of this embodiment is: the second M of the electric valve is set at the connection between the heat exchange carrier output port of the fresh air reheating unit and the heat exchange carrier input port of the fresh air precooling unit. All the other are with specific embodiment 1.

[0060] The energy-saving system with cascade treatment of fresh air load with heat recovery, as part of the air-conditioning system with independent temperature and humidity control, adopts exhaust air heat recovery technology, and through the cascade treatment of fresh air load, the internal transfer of heat can be realized, eliminating the addition of external heat and saving energy. The effect is obvious. The outdoor fresh air is filtered, precooled (preheated), cooled and dehumidified (heated), reheated (humidified) and then sent into the room; the heat is transferred through the solution heat carrier, and the exhaust air heat is recovered and cooled by ...

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Abstract

The invention relates to an energy saving method and a fresh air load step processing device of an air conditioner fresh air system. The energy saving method and the fresh air load step processing device are characterized in that latent heat loads and sensible heat loads of the air conditioner fresh air system are processed in a separated mode. The latent heat loads are processed by low-temperature chilled water of the high-energy grade, and the sensible heat loads are transferred into a room and processed by high-temperature chilled water of the low-energy grade. The air supply temperature of the air conditioner fresh air system is increased, and the air supply enthalpy value is improved, namely the air supply energy grade is reduced. The cold consumption amount of a fresh air unit is reduced, namely the capacity of a low-temperature cold water unit is reduced, and therefore the weight of the sensible heat processing amount is improved. The cooling dehumidification principle is used, the non-contact and evaporation type air exhaust total heat recovery technology is used, the step processing of the fresh air cold loads is combined, and therefore internal transferring of heat is achieved, adding of external heat is avoided or conveying energy consumption added by secondary air return is avoided, and the energy consumption of new air processing is reduced. According to the energy saving method and the fresh air load step processing device, cross contamination of air can be avoided, heat recovery of exhaust air is achieved, the heat recovery amount is improved, and the energy saving method and the fresh air load step processing device have the advantages of being capable of reducing the loads of an air conditioner and good in energy saving effect.

Description

Technical field: [0001] The invention relates to an energy-saving method of a fresh air air-conditioning system and a fresh air load cascade processing device, which are suitable for air-conditioning fresh air processing of an air-conditioning system with independent temperature and humidity control. It belongs to the technical field of an air-conditioning energy-saving system. Background technique [0002] With the emergence of a large number of air-conditioning systems and air-conditioning equipment, the energy consumption of air-conditioning has become a conspicuous problem. With the development of urban construction, building energy consumption has accounted for about 30% of the country's total energy consumption, while air-conditioning energy consumption generally accounts for more than 60% of the entire building energy consumption, and the proportion continues to increase. The annual power consumption peak in cities is in summer, and the power consumption of air-condi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F12/00F24F13/30
CPCY02P80/15
Inventor 李继路黄伟刘谨
Owner 广州市设计院集团有限公司