Air conditioning device

An air conditioning and control device technology, applied in space heating and ventilation, gas circulation refrigerators, heating methods, etc., can solve the problems of higher blowing temperature, affecting user comfort, lowering blowing temperature, etc. energy effect

Active Publication Date: 2012-04-18
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the blowing temperature at the start of heating becomes low, or the blowing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Embodiment 1

[0018] figure 1 It is a system circuit diagram of the air conditioning apparatus according to Embodiment 1 of the present invention. In the air-conditioning apparatus of the first embodiment, the compressor 10, the four-way valve 11 as a refrigerant flow switching device, the heat source side heat exchanger 12, the heat exchangers 14a, 14b between heat medium, and electronic expansion are connected by pipes. Expansion devices 15a, 15b such as valves, and an accumulator 16 constitute a refrigeration cycle. The refrigerant circulates in the refrigeration cycle. Here, the heat exchanger 14a related to heat medium corresponds to the first heat exchanger related to heat medium. The heat exchanger related to heat medium 14b corresponds to the second heat exchanger related to heat medium. In addition, the expansion device 15a corresponds to the first expansion device, and the expansion device 15b corresponds to the second expansion device.

[0019] In addition, a...

Example Embodiment

[0109] Embodiment 2

[0110] Figure 7 It is a system circuit diagram showing the refrigerant side circuit of the air-conditioning apparatus according to Embodiment 2 of the present invention. In the second embodiment, check valves 13a, 13b, 13c, and 13d are provided in the heat source machine 1, and the other structures are the same as those in the first embodiment. Hereinafter, the description will be focused on the differences between the second embodiment and the first embodiment.

[0111] During full heating operation and heating main operation, the refrigerant passing through the four-way valve 11 flows into the heat medium relay unit 3 through the check valve 13b. In addition, during the cooling-only operation and the cooling-main operation, the refrigerant flowing out of the heat source side heat exchanger 12 flows into the heat medium relay unit 3 through the check valve 13a. In addition, the refrigerant flowing out of the heat medium relay unit 3 and returning to the he...

Example Embodiment

[0114] Embodiment 3

[0115] In the refrigerant-side circuit of Embodiments 1 and 2, the heat exchangers 14a and 14b related to heat medium are arranged on the side of the heat source unit 1 so that the refrigerant flows in series. However, in the third embodiment, in the heating only operation, In the case of the cooling only operation, the refrigerant is arranged so as to flow in parallel in the two heat exchangers 14a and 14b related to heat medium. In addition, during heating-main operation and cooling-main operation, it is arranged in such a way that part of the refrigerant flowing from the heat source unit 1 into the heat medium converter 3 flows in series in the heat exchangers 14a and 14b related to heat medium, and the remaining The part flows in one of the heat exchanger 14a related to heat medium or the heat exchanger 14b related to heat medium.

[0116] Figure 8 It is a system circuit diagram showing the refrigerant side circuit of the air-conditioning apparatus accor...

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PUM

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Abstract

The device has a heat medium circulation circuit that has multiple use-side heat exchangers (30), inter-heat medium heat exchangers (14a, 14b), heat medium flow path switching devices (32, 33) for switching flow paths, and pumps (31a, 31b) for producing a flow of the heat medium in said flow paths. The inter-heat medium heat exchangers (14a, 14b) exchange heat between a heat source fluid from a heat source device (1) and the heat medium in order to heat or cool the heat medium. Roughly half of the multiple use-side heat exchangers (30) are use-side heat exchangers (30) that preheat or pre-cool, and the remaining use-side heat exchangers (30) that do not preheat or pre-cool reduce the energy consumed by preheating or pre-cooling by exchanging the heat medium with those use-side heat exchangers (30) of the preheat or pre-cool use-side heat exchangers (30) that have not yet started operating.

Description

technical field [0001] The present invention relates to air conditioning devices such as multi-connected air conditioners for high-rise buildings. Background technique [0002] As a prior art, in an air conditioner that performs heat exchange using a heat medium (cold liquid or hot liquid) from a heat source device (heat source device), there is a need to control the heat circulating between the heat source unit and the indoor unit (air conditioner). Medium pre-cooling, pre-heating technology. For example, a technique has been proposed in which the temperature of the liquid in the piping connecting the heat source machine and the air conditioner is measured at night, the heat source device is activated at the time of calculation based on various data including the liquid temperature data, and then forced The valve of the indoor unit scheduled to operate on that day is fully opened, and the indoor unit is precooled and preheated before actually starting to use the indoor uni...

Claims

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Application Information

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IPC IPC(8): F24F11/02F25B1/00
CPCF24F11/008F25B2313/0231F25B13/00F25B25/005F25B2500/26F25B2700/2106F25B2313/0272F25B2313/0234F25B2313/006F25B2309/061F25B1/00F25B2341/0662F25B2313/02741F24F11/83F25B41/39F24F11/84
Inventor 高山启辅岛津裕辅
Owner MITSUBISHI ELECTRIC CORP
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