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Refrigeration and air conditioning device, refrigerant leak detector, and method for detecting refrigerant leaks

An air-conditioning device and refrigerant technology, which is applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of time-consuming, high cost, and reduced pressure resistance, and achieve the advantages of easy sensor installation and reduced measurement value offset Effect

Active Publication Date: 2015-04-01
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, in order to grasp the remaining liquid amount of the conventional device by installing a window or installing a sensor on the liquid storage container, it is necessary to process the existing device for installing a window and a sensor, which is actually very difficult.
Even if it can be processed, there will be problems such as the following problems: due to the correction of the liquid storage container whose internal pressure changes greatly, the pressure resistance will be lowered, which will greatly affect the reliability, or even if the hole or window is installed, the problem will be caused. Complicated and labor-intensive, resulting in higher costs

Method used

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  • Refrigeration and air conditioning device, refrigerant leak detector, and method for detecting refrigerant leaks
  • Refrigeration and air conditioning device, refrigerant leak detector, and method for detecting refrigerant leaks
  • Refrigeration and air conditioning device, refrigerant leak detector, and method for detecting refrigerant leaks

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Embodiment Construction

[0046] Embodiments of the present invention will be described below with reference to the drawings. Additionally, when including figure 1 In the following drawings, the size relationship of each component may be different from the actual one. Additionally, when including figure 1 In the following drawings, the parts assigned the same symbols are the same or correspond to them, and this is common throughout the specification. Furthermore, the form of the component shown in the whole specification is an illustration, and is not limited to these descriptions.

[0047] figure 1 It is a schematic configuration diagram showing an example of the refrigerant circuit configuration of the refrigerating and air-conditioning apparatus 1 according to the embodiment of the present invention. according to figure 1 , the refrigerant circuit structure and operation of the refrigerating and air-conditioning apparatus 1 will be described. The refrigerating and air-conditioning apparatu...

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Abstract

A refrigeration and air conditioning device (1) causes a sharp change in the pressure or temperature in a liquid storage container (24) to determine the liquid level position in the liquid storage container (24) from the surface temperature of the liquid storage container (24).

Description

technical field [0001] The present invention relates to a refrigerating and air-conditioning apparatus capable of detecting refrigerant leakage from a refrigerant circuit, a refrigerant leakage detection device, and a refrigerant leakage detection method. Background technique [0002] Conventionally, there is a refrigerating and air-conditioning apparatus that calculates the value of each element based on the detection results of a pressure sensor and a temperature sensor used to control each element (compressor, expansion valve, etc. driving device (actuator)) that constitutes the refrigeration cycle. The refrigerant density is calculated by adding up the internal volumes of each element to calculate the amount of refrigerant in the refrigerant circuit to detect refrigerant leakage from the refrigerant circuit of the refrigerating and air-conditioning apparatus (for example, refer to Patent Document 1). [0003] Since the amount of refrigerant required during operation vari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02
CPCF25B49/005F25B41/22F25B13/00F25B2313/0294F25B2500/19F25B2500/222F25B2600/021F25B2600/05F25B2600/23F25B2600/2519F25B2700/2108F25B2700/2109F25B2313/0314F25B2313/0315F25B2700/04F25B2700/1931F25B2700/1933F25B2700/2104F25B2700/2106F25B2700/2113F25B43/006F25B49/02F25B2600/2513Y02B30/70F25B49/022F25B2600/02
Inventor 落合康敬齐藤信亩崎史武
Owner MITSUBISHI ELECTRIC CORP
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