Equipment that uses heat pump

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

Active Publication Date: 2020-01-17
MITSUBISHI ELECTRIC CORP
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in this case, if the refrigerant leaks into the water circuit, the refrigerant mixed in the water in the water circuit may be discharged not only from the pressure relief valve provided on the outdoor unit but also from the pressure relief valve provided on the indoor unit. Happening
Therefore, there is a problem that the refrigerant may leak into the room through the water circuit

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Equipment that uses heat pump
  • Equipment that uses heat pump
  • Equipment that uses heat pump

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 actual ones.

[0018] Such as figure 1 As shown, the heat pump hot water heating apparatus 1000 has a refrigerant circuit 110 that circulates a refrigerant, and a water circuit 210 that circulates water. In addition, the heat pump hot water supply and heating apparatus 1000 includes an outdoor unit 100 installed outdoors (for example, outdoors) and an indoor unit 200 installed indoors. The indoor unit 200 is installed, for example, in a storage space suc...

Embodiment approach 2

[0089] A heat pump utilization facility according to Embodiment 2 of the present invention will be described. Figure 6 It is a circuit diagram showing a schematic configuration of the heat pump utilization facility according to the present embodiment. In addition, components having the same functions and actions as those in Embodiment 1 are assigned the same reference numerals and their descriptions are omitted. In the refrigerant circuit 110 of the present embodiment, a container 8 (for example, a storage tank) for storing refrigerant is provided between the heat source side heat exchanger 1 and the expansion device 6 .

[0090] Figure 7 It is a cross-sectional view showing a schematic configuration of the compressor 3 of the heat pump utilization facility according to this embodiment. The compressor 3 of the present embodiment is a hermetically sealed high-pressure shell type scroll compressor. Such as Figure 7 As shown, the compressor 3 has a compression mechanism un...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Equipment that uses a heat pump comprises a refrigerant circuit and a heat transfer medium circuit. The refrigerant circuit can execute a first operation in which a load-side heat exchanger functionsas a condenser and a second operation in which the load-side heat exchanger functions as an evaporator. A main circuit of the heat transfer medium circuit has a branching portion and a merging portion. A pressure protection device and a refrigerant leak detection device are connected to the main circuit. The pressure protection device is connected to a connecting unit located between the load-sideheat exchanger and one of the branching portion or the merging portion or in the load-side heat exchanger. The refrigerant leak detection device is connected to the other of the branching portion orthe merging portion, between the other of the branching portion or the merging portion and the connecting unit, or to the connecting unit. When a refrigerant leak to the heat transfer medium circuit is detected, a refrigerant channel switching device is put in the second operation state, an expansion device is put in a closed state, and a compressor operates.

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. This outdoor unit has a refrigerant circuit in which a compressor, an air heat exchanger, an expansion device, and a water heat exchanger are connected by piping, and a water circuit for supplying water heated by the water heat exchanger. Pressure relief valve for excessive rise in water pressure. Thus, even when the partition wall separating the refrigerant circuit and the water circuit in the water heat exchanger is damaged and the flammable refrigerant is mixed into the water circuit, the flammable refrigerant can be released to the outside through the pressure release valve. discharge. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2013-167398 [0004] In heat pump utilization equipmen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F25B1/00F25B49/02
CPCF24D19/1054F25B13/00F25B49/005F25B47/025F25B2313/003F25B2500/222F25B2600/2519F25B2400/19F25B2339/047F25B30/02F25B2400/12F24D11/02F25B41/22F25B49/022F25B2500/07F25B2500/221F24F11/36
Inventor 铃木康巨南迫博和铃木一隆美藤尚文服部太郎
Owner MITSUBISHI ELECTRIC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap