Four-pipe air conditioning system

An air-conditioning system and four-control technology, applied in the field of air-conditioning, can solve the problems of inability to form countercurrent heat exchange and affect the working efficiency of the air handling unit, and achieve the effect of simple structure, reliable operation and low cost

Inactive Publication Date: 2017-10-24
刘雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like Figure 12 As shown, in the working process, when the air-conditioning equipment 100 and the domestic hot water heater 30 are respectively air-water heat exchangers, and are composed as Figure 8 When the air handling unit is shown, in the process of heating the air in winter, hot water and air are due to the air handling unit (such as Figure 8 As shown), the countercurrent heat exchange cannot be formed, so it will also affect the working efficiency of the entire air handling unit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] figure 1 The four-pipe air conditioning system shown includes two parts, the chilled water subsystem and the hot water subsystem. The two subsystems include the following components: the user-side heat exchanger 3 of the air-conditioning and refrigeration equipment, the hot water heater 8 of the air-conditioning and refrigeration equipment, the reheater 30, the hot water circulation pump 50, the air-conditioning water circulation pump 51, the cooler 100, the second A water flow control valve 121 , a second water flow control valve 122 , a third water flow control valve 123 , a fourth water flow control valve 124 , a fifth water flow control valve 125 , a sixth water flow control valve 126 , and a seventh water flow control valve 127 .

[0072] exist figure 1 In the four-pipe air-conditioning system shown, the installation positions of the air-conditioning water circulation pump 51 and the hot water circulation pump 50 in the system are: the outlet end of the air-cond...

Embodiment 2

[0135] like figure 2 As shown, it is the same as Example 1 figure 1 The difference of the four-pipe air-conditioning system shown is that the installation positions of the subsystem connecting pipe 104 and the second water flow control valve 122 in the four-pipe air-conditioning system are reversed. exist figure 2 In the system shown, the installation positions of the air-conditioning water circulation pump 51 and the hot water circulation pump 50 in the system are the same as figure 1 The scheme shown is the same.

[0136] figure 2 The four-pipe air conditioning system shown with Figure 9 The air-conditioning and refrigeration equipment shown in combination can also realize Embodiment 1 figure 1 All the functions of the scheme shown, and the control method when realizing each function is the same; in addition, when realizing the same function, Figure 9 The working process of the shown air-conditioning and refrigeration equipment is also the same as that of Embod...

Embodiment 3

[0151] like image 3 As shown, it is the same as Example 1 figure 1 The difference of the shown four-pipe air-conditioning system is only: the installation positions of the air-conditioning water circulation pump 51 and the hot water circulation pump 50 in the system are different.

[0152] In this example image 3 In the four-pipe air-conditioning system shown, the installation positions of the air-conditioning water circulation pump 51 and the hot water circulation pump 50 in the system are: the outlet end of the air-conditioning water circulation pump 51 is connected to the inlet end of the fourth water flow control valve 124, and the inlet end of the air-conditioning water circulation pump 51 It is connected with the chilled water return main pipe 102 and the third water flow control valve 123; the inlet end of the hot water circulation water pump 50 is connected with the hot water return water main pipe 108 and the third water flow control valve 123, and the outlet end ...

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PUM

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Abstract

The invention discloses a four-pipe air-conditioning system, which comprises a user-side heat exchanger of an air-conditioning refrigeration equipment, a hot water heater of the air-conditioning refrigeration equipment, a first water flow control valve, a second water flow control valve, a third water flow control valve, a Four water flow control valves, the fifth water flow control valve, the sixth water flow control valve, the seventh water flow control valve, subsystem connecting pipes, at least one cooler and reheater; the user side heat exchanger of the air-conditioning refrigeration equipment, the first Four water flow control valves, the fifth water flow control valve and at least one cooler constitute the chilled water subsystem of the four-pipe air-conditioning system; the hot water heater, the first water flow control valve, the sixth water flow control valve and at least A reheater forms the hot water subsystem of the four-pipe air conditioning system. Using one air-conditioning and refrigeration equipment can meet the cooling and heat requirements of the air-conditioning system during the air-handling process; it is especially suitable for air-conditioning occasions that require temperature and humidity and each air-conditioned room needs to be controlled independently.

Description

technical field [0001] The invention relates to a four-pipe air-conditioning system driven by air-conditioning and refrigeration equipment with simultaneous heating and cooling functions, and belongs to the technical field of air-conditioning. Background technique [0002] The invention patent published by the applicant on August 1, 2012, with the application number 201210093904.4, proposes a water system for air treatment equipment, the system composition and air treatment unit are as follows: Figure 7 , 8 As shown, it can be seen from the figure that the air treatment unit of the water system of the air treatment equipment (such as Figure 8 Shown) In the process of heating air in winter, hot water with a higher temperature first enters the cooler 100 to exchange heat with the inlet air with a lower temperature, and the heat is released and the water temperature is lowered before entering the reheater 30 and coming from the cooler 100, The air after the temperature rises...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B29/00F25B41/04F24F12/00F24F13/30F25B41/24
Inventor 刘雄
Owner 刘雄
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