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Four-pipe air conditioning system

An air-conditioning system and four-pipe technology, applied in the field of air-conditioning, can solve problems such as affecting the working efficiency of an air handling unit, unable to form countercurrent heat exchange, etc., and achieve the effects of simple structure, low cost and reliable operation

Inactive Publication Date: 2014-03-05
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), 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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  • Four-pipe air conditioning system

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 1The 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 o...

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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 device, a hot water heater of the air conditioning refrigeration device, a first water flow control valve, a second water flow control valve, a third water flow control valve, a fourth water flow control valve, a fifth water flow control valve, a sixth water flow control valve, a seventh water flow control valve, a subsystem connecting pipe, at least one cooler and at least one reheater. The user side heat exchanger of the air conditioning refrigeration device, the fourth water flow control valve, the fifth water flow control valve and the cooler form a chilled water subsystem of the four-pipe air conditioning system. The hot water heater of the air conditioning refrigeration device, the first water flow control valve, the sixth water flow control valve and the reheater form a hot water subsystem of the four-pipe air conditioning system. The cold and heat demands of the air conditioning system in the air-processing process can be met at the same time through one air conditioning refrigeration device. The four-pipe air conditioning system is particularly suitable for being used in air conditioning occasions on which temperature and humidity need to meet demands and all air conditioning rooms need to be independently controlled.

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 of the present invention on August 1, 2012, with the application number 201210093904.4, proposes a water system for air treatment equipment, and its 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...

Claims

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Application Information

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IPC IPC(8): F25B29/00F25B41/04F24F12/00F24F13/30F25B41/24
Inventor 刘雄
Owner 刘雄