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air conditioner

A technology of air conditioning and conveying devices, which is applied in air conditioning systems, household refrigeration devices, high-efficiency regulation technology, etc., to achieve the effects of improving energy saving, avoiding pipe pitting, and avoiding excessive flow of heat medium delivery

Active Publication Date: 2017-08-29
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] The present invention was developed to solve the above-mentioned problems, and its object is to provide an air-conditioning apparatus having a plurality of heat medium conveying apparatuses that can operate in a single operation mode even when the load on the indoor unit is sufficiently small. Energy saving and safety can be improved through the control of multiple heat medium conveying devices

Method used

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Examples

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Embodiment Construction

[0041] Hereinafter, embodiments of the present invention will be described based on the drawings.

[0042] figure 1 It is a schematic diagram which shows the installation example of the air-conditioning apparatus which concerns on embodiment of this invention. based on figure 1 An example of installation of an air conditioner will be described. This air conditioner utilizes a refrigeration cycle (refrigerant circuit A, heat medium circuit B) that circulates a refrigerant (heat source side refrigerant, heat medium), and each indoor unit can freely select a cooling mode or a heating mode as an operation mode. model. exist figure 1 2 schematically shows the entire air-conditioning apparatus in which a plurality of indoor units 3 are connected. Additionally, include figure 1 In addition, in the following drawings, the relationship of the size of each component may differ from the actual situation.

[0043] exist figure 1 In this embodiment, the air conditioner includes an ...

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Abstract

An air conditioner (100) in which all the pumps (31) are operated and the heat exchange amount of the use side heat exchanger (35) is below the lower limit capacity of the heat capacity that can be transported in the heat medium circulation circuit (B), Before stopping at least one of the plurality of pumps (31), the refrigerant side flow path of the heat exchanger related to heat medium (25) connected to the stopped pump (31) is closed, and then the plurality of pumps ( At least one of the pumps (31) is stopped, and the remaining parts of the plurality of pumps (31) are used to deliver the necessary heat capacity to the use-side heat exchanger (35).

Description

technical field [0001] The present invention relates to an air conditioning device suitable for use in, for example, a central air conditioner for a building. Background technique [0002] Conventionally, in an air-conditioning apparatus such as a central air conditioner for a building, a refrigerant circulates between an outdoor unit that is a heat source machine disposed outside the building and an indoor unit disposed indoors of the building. Then, the refrigerant radiates heat and absorbs heat, and cools or heats the air-conditioned space through the heated and cooled air. As refrigerants used in such air-conditioning apparatuses, for example, HFC (hydrofluorocarbon) refrigerants are often used. In addition, the use of carbon dioxide (CO 2 ) and other natural refrigerants. [0003] In addition, in an air-conditioning apparatus called a chiller, cold energy or heat energy is generated using a heat source unit placed outside a building. Moreover, water, antifreeze, etc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/02F25B1/00F25D17/02
CPCF25B13/00F25B25/005F24F3/065F25B2313/023F25B2313/0272F25B2313/02743F25B2600/13Y02B30/70F24F5/001
Inventor 本村祐治岛本大祐本多孝好森本修西冈浩二小野达生
Owner MITSUBISHI ELECTRIC CORP
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