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Direct expansion heat recovery energy saving method and device

A direct expansion heat recovery and energy-saving device technology, applied in the field of air conditioning, can solve the problems of large size and complex system, and achieve the effect of simple structure

Inactive Publication Date: 2015-08-19
蒋伟义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the refrigerant system is not easy to control, there are secondary refrigerant systems, such as refrigerated brine systems, air-conditioning ice water systems or hot water systems, which use secondary refrigerants for cooling, dehumidification, and heating purposes, but the system will be more complicated and huge

Method used

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  • Direct expansion heat recovery energy saving method and device
  • Direct expansion heat recovery energy saving method and device
  • Direct expansion heat recovery energy saving method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Such as image 3 As shown, it can be seen that this embodiment is mainly composed of a compressor COM, a condenser CON, an expansion valve EXP (expansion valve EXPANSION VALVE) and an evaporator EVP to form a complete refrigeration cycle, wherein: the condenser CON is composed of the first condenser CON1 and the second condenser CON2 are connected in series. Controlling the heat dissipation required by the second condenser CON2 is a proportional control of the heat dissipation of the first condenser CON1 to achieve precise control of the heat dissipation required by the second condenser CON2. The second condenser CON2 is used for heat recovery heater, and will not affect the normal operation of the compressor COM. That is to say, only need to start the compressor, through heat recovery, it can have the functions of cooling, dehumidification and heating at the same time. It is suitable for industries requiring low humidity and constant temperature (lower temperature) s...

Embodiment 2

[0106] Such as Figure 4 As shown, the evaporator EVP in this embodiment is composed of the first evaporator EVP1 and the second evaporator EVP2 connected in series. In this embodiment, controlling the heat dissipation required by the second condenser CON2 is a proportional control of the heat dissipation of the first condenser CON1, so as to accurately control the heat dissipation required by the second condenser CON2, and the second condenser CON2 is used as The heat recovery heater will not affect the normal operation of the compressor. The heat absorption required by the second evaporator EVP2 is proportional to the heat absorption of the first evaporator EVP1, so as to accurately control the heat absorption of the second evaporator EVP2. The second evaporator EVP2 is used for cooling and dehumidification. When its capacity is lower than that of the heat recovery heater, the system will have a high temperature heating effect without affecting the normal operation of the co...

Embodiment 3

[0108] Such as Figure 5 As shown, another embodiment of the present invention includes the third condenser CON3 and the fourth condenser CON4 connected in series, the third condenser CON3 and the fourth condenser CON4 connected in series and the first condenser CON2 connected in series It is connected in parallel with the two series circuits of the second condenser CON2, and a solenoid valve S (solenoid valve SOLENOID VALVE) is used to control and start the heat recovery heating or heat recovery humidification function. That is to say, it only needs to start the compressor, and through heat recovery, it can have the functions of cooling, dehumidification, heating, and humidification at the same time. It is suitable for industries that require constant temperature and humidity, such as computer rooms, constant temperature and humidity machines in the electronics industry, and drying processes for dewaxing casting shell molds.

[0109] In this embodiment, the above-mentioned f...

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Abstract

The invention belongs to the technical field of air conditioners, and particularly relates to a direct expansion heat recovery energy saving method and device. The method mainly includes the complete freezing circulation of a compressor (COM) compression process, a condenser (CON) condensing process, an expansion valve (EXP) throttling process and an evaporator (EVP) evaporation process. The radiating process of the condenser (CON) condensing process is characterized in that at least 2 condensers are connected in series, radiating amount required by a second condenser (CON2) is the radiating amount of a first condenser (CON1) controlled proportionally to accurately control the radiating amount required by the second condenser (CON2). The heat absorption process of the evaporator (EVP) evaporation process is characterized in that at least 2 evaporators are connected, the heat absorbing amount required by the second evaporator (EVP2) is heat absorbing amount of a first evaporator (EVP1) controlled proportionally to accurately control the heat absorbing amount required by a second evaporator (EVP2). Only the compressor (COM) is required to be started, and the method and the discharging device have functions of cooling, dehumidifying and reheating by means of heat recovery.

Description

technical field [0001] The invention belongs to the technical field of air conditioning, and in particular relates to a direct expansion heat recovery energy-saving method and device. Background technique [0002] Taiwan has an island-type climate. During the four seasons, most of the days are humid. Various industries have realized temperature and humidity control in order to improve product quality or develop high-tech technologies. importance. With the progress of the times, in order to improve product quality or develop high-tech technologies, various industries require constant temperature and humidity in their working environments. For example, many electronic devices installed in data centers have circuit boards and For electronic components, if the surrounding environment of the data center is too dry, static electricity is likely to be generated between the circuit board and the electronic components, causing damage, or the surrounding environment is too humid, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/00F24F13/30F25B31/00F24F12/00
CPCF24F1/0059F24F12/00F24F13/30F25B31/00
Inventor 蒋伟义
Owner 蒋伟义
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