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Method and device for reducing flow noise of refrigerant of variable refrigerant flow system

A multi-connected system, flow noise technology, applied in noise suppression, refrigerators, refrigeration components, etc., can solve problems affecting user experience, low compressor operating frequency, large condenser flow area, etc., to achieve uniform flow of refrigerant performance, promote the flow of refrigerant, and reduce the noise of refrigerant flow in multi-connected systems

Active Publication Date: 2019-06-18
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the low operating frequency of the compressor driving the refrigerant flow and the large flow area of ​​the condenser, the refrigerant flow rate is slow and the mixing is uneven
[0004] Therefore, in the multi-connected system of the related art, when the refrigerant passes through the flow section of the electronic expansion valve, the bubbles in the two-phase refrigerant with a relatively slow flow rate will collide or rub against the inner wall of the flow channel in the electronic expansion valve flow channel, thereby generating flow Noise, affecting user experience

Method used

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  • Method and device for reducing flow noise of refrigerant of variable refrigerant flow system

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] The method and device for reducing refrigerant flow noise in a multi-line system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0030] figure 1 It is a schematic structural diagram of a multi-line system according to a specific embodiment of the present invention.

[0031] Such as figure 1 As shown, the multi-connected system of the embodiment of the present invention may include a refrigeration system, and the refrigeration system may include ...

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Abstract

The invention discloses a method and device for reducing the flow noise of a refrigerant of a variable refrigerant flow system. According to the method and the device, the variable refrigerant flow system comprises a first bypass valve, a second bypass valve and a refrigerant throttling valve. The method comprises the following steps that acquiring the operating horsepower of an indoor unit; acquiring the starting capacity of the indoor unit; and controlling the first bypass valve, the second bypass valve and the refrigerant throttling valve according to the operating horsepower of the indoorunit or the starting capacity of the indoor unit. The method and the device have the advantages that the first bypass valve, the second bypass valve and the refrigerant throttling valve are controlledaccording to the operating horsepower of the indoor unit or the starting capacity of the indoor unit, so that the number of outlet flow paths of the refrigerant is changed, and therefore the flow ofthe refrigerant is promoted, the flow uniformity of the refrigerant is improved, and the flow noise of the refrigerant of the variable refrigerant flow system is reduced.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a method for reducing the flow noise of refrigerant in a multi-connected system and a device for reducing the flow noise of refrigerant in a multi-connected system. Background technique [0002] VRF (Variable Refrigerant Flow, multi-connection) in the related art is mostly caused by too fast flow rate of the refrigerant impacting the electronic expansion valve or other throttling components. [0003] When the multi-connected system is running with a small capacity, due to the small energy demand of the system, the condensation capacity is insufficient, the subcooling degree of the refrigerant at the outlet of the condenser is small, and the actual physical state of the refrigerant is a gas-liquid two-phase state. In addition, due to the low operating frequency of the compressor driving the refrigerant flow and the large flow area of ​​the condenser, the refrigerant flow ...

Claims

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Application Information

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IPC IPC(8): F24F11/30F24F11/64F24F13/24F25B41/04F25B41/06F25B41/20F25B41/31
Inventor 谭志军梁鑫杨国忠王命仁
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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