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Heat pump utilization equipment

A heat pump and equipment technology, applied in the field of heat pump utilization equipment, can solve problems such as refrigerant leakage and achieve the effect of preventing leakage

Active Publication Date: 2019-07-30
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the refrigerant may leak into the room through the water circuit

Method used

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  • Heat pump utilization equipment
  • Heat pump utilization equipment
  • Heat pump utilization equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0017] The heat pump utilization facility according to Embodiment 1 of the present invention will be described. figure 1 It is a circuit diagram showing a schematic configuration of the heat pump utilization facility according to the present embodiment. In this embodiment, a heat pump hot water supply and heating device 1000 is exemplified as a heat pump utilization device. Additionally, when including figure 1 In the drawings included below, the dimensional relationship, shape, etc. of each component may be different from the actual situation.

[0018] Such as figure 1 As shown, the heat pump hot water heating device 1000 has: a refrigerant circuit 110 for circulating the refrigerant; and a water circuit 210 for circulating water. In addition, the heat pump hot water supply and heating device 1000 includes: an outdoor unit 100 installed outdoors (for example, outdoors); and an indoor unit 200 installed indoors. For example, the indoor unit 200 may be installed in a storag...

Embodiment approach 2

[0074] A heat pump utilization facility according to Embodiment 2 of the present invention will be described. Figure 7 It is a circuit diagram showing a schematic configuration of the heat pump utilization facility according to the present embodiment. exist Figure 7 In , the structure of the indoor unit 200 is mainly shown. In addition, components having the same functions and actions as those in Embodiment 1 are denoted by the same reference numerals and their descriptions are omitted. Such as Figure 7 As shown, in this embodiment, the boiling circuit 240 for heating the water stored in the hot water storage tank 51 is provided outside the hot water storage tank 51 . The boiling circuit 240 has a water flow path connecting the lower part and the upper part of the hot water storage tank 51 . The boiling circuit 240 is provided with a boiling pump 241 and a boiling heat exchanger 242 for exchanging heat between the water flowing in the boiling circuit 240 and the water f...

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PUM

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Abstract

This heat pump utilization equipment comprises a refrigerant circuit, a heat medium circuit, and a heat exchanger which performs heat exchange between a refrigerant and a heat medium. The main circuitof the heat medium circuit has a branch section and a merging section. A pressure protection device and a refrigerant leakage detection device are connected to the main circuit. The pressure protection device is connected to a connection section which is located between the heat exchanger and one of the branch section and the merging section in the main circuit. A first shut-off device capable ofshutting off the flow from the heat exchanger to the connection section is provided between the heat exchanger and the connection section in the main circuit. A second shut-off device capable of shutting off the flow from the heat exchanger to the other of the branch section and the merging section is provided between the heat exchanger and said section in the main circuit.

Description

technical field [0001] The present invention relates to a heat pump utilization device having a refrigerant circuit and a heat medium circuit. Background technique [0002] Patent Document 1 describes an outdoor unit of a heat pump cycle device using a flammable refrigerant. The outdoor unit is equipped with: a refrigerant circuit, a compressor, an air heat exchanger, a throttling device, and a water heat exchanger; The water pressure inside has risen excessively. Thus, even if the partition wall separating the refrigerant circuit and the water circuit in the water heat exchanger is broken and the flammable refrigerant is mixed into the water circuit, the flammable refrigerant can be discharged to the outside through the pressure relief valve. . [0003] Patent Document 1: Japanese Patent Laid-Open No. 2013-167398 [0004] In heat pump utilization equipment such as a heat pump circulation device, the pressure relief valve of the general water circuit is installed in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/00F25B49/02
CPCF24H9/2021F24D17/02F25B40/00F25B47/025F25B2339/047F25B2500/222F25B41/39F24H9/17
Inventor 铃木康巨铃木一隆南迫博和服部太郎
Owner MITSUBISHI ELECTRIC CORP