Multi-line system, liquid discharge control method and device applied to multi-line system

A multi-connected system and liquid drainage technology, applied in the field of multi-connected systems, can solve problems such as complex control methods, improve comfort and reliability, and ensure the effect of refrigerant circulation

Active Publication Date: 2021-04-02
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a multi-connection system, a liquid discharge control method and device applied to the multi-connection system, to at least solve the problem that the multi-connection system controls the refrigerant discharge of the refrigerant storage tank through a solenoid valve in the prior art, and the control method is relatively complicated. The problem

Method used

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  • Multi-line system, liquid discharge control method and device applied to multi-line system
  • Multi-line system, liquid discharge control method and device applied to multi-line system
  • Multi-line system, liquid discharge control method and device applied to multi-line system

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Embodiment 1

[0028] The liquid discharge control method applied to the multi-line system provided by the present invention will be described below with reference to the accompanying drawings.

[0029] figure 2 A schematic diagram showing an optional structure of the multi-line system provided by the present invention, such as figure 2 As shown, the multi-connected system includes: a refrigerant storage tank, a liquid-discharging electronic expansion valve, and the liquid-discharging electronic expansion valve is connected to the outlet end of the refrigerant storage tank through a first pipeline; further, the multi-connected system also includes: A heat exchanger and a gas-liquid separator, the heat exchanger is connected to the liquid discharge electronic expansion valve through the second pipeline, and the heat exchanger is connected to the gas-liquid separator through the third pipeline, wherein, preferably, the heat exchanger is a casing type heat exchanger; further, the multi-line ...

Embodiment 2

[0046] Based on the liquid discharge control method applied to the multi-line system provided in the above-mentioned embodiment 1, the optional embodiment 2 of the present invention also provides a liquid discharge control device applied to the multi-line system, wherein the multi-line system includes: The refrigerant storage tank, the liquid-discharging electronic expansion valve, and the liquid-discharging electronic expansion valve are connected to the outlet end of the refrigerant storage tank through the first pipeline, specifically, Figure 4 shows an optional structural block diagram of the device, such as Figure 4 As shown, the device includes: a receiving unit 42 for receiving a first control signal for controlling the draining of the refrigerant storage tank; a control unit 44 for controlling the opening state of the draining electronic expansion valve according to the first control signal, To control the draining of the refrigerant storage tank.

[0047] Further, ...

Embodiment 3

[0051] According to another aspect of the embodiments of the present disclosure, a drainage control device and a multi-line system including the drainage control device are provided, figure 2 An optional structural block diagram is shown, wherein the liquid discharge control device includes: a refrigerant storage tank, a liquid discharge electronic expansion valve and a controller, wherein the liquid discharge electronic expansion valve passes through the first pipeline and the outlet end of the refrigerant storage tank Through the pipeline connection, the controller controls the liquid discharge of the refrigerant storage tank through the liquid discharge electronic expansion valve.

[0052] Further, the device also includes: a heat exchanger and a gas-liquid separator, wherein the heat exchanger is connected to the liquid-discharging electronic expansion valve through the second pipeline, and connected to the gas-liquid separator through the third pipeline, and the heat exch...

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Abstract

The invention discloses a multi-split air-conditioning system and a liquid discharge control method and device for the same. The multi-split air-conditioning system comprises a refrigerant storage tank and a liquid discharge electronic expansion valve, wherein the liquid discharge electronic expansion valve is connected with the outlet end of the refrigerant storage tank through a first pipeline. The method includes: receiving a first control signal for controlling the liquid discharge of the refrigerant storage tank; controlling the on state of the liquid discharge electronic expansion valve according to the first control signal so as to control the liquid discharge of the refrigerant storage tank. The multi-split air-conditioning system and the liquid discharge control method and device for the same have the advantages that the problem that the refrigerant liquid discharge of the refrigerant storage tank of the multi-split air-conditioning system is controlled through an electromagnetic valve, and the control manner is complex in the prior art is solved, system refrigerant circulating quantity is guaranteed, and the comfortableness and reliability of the multi-split air-conditioning system are improved.

Description

technical field [0001] The present invention relates to the technical field of multi-line systems, in particular, to a multi-line system, a liquid discharge control method and a device applied to the multi-line system. Background technique [0002] The existing multi-connection (heat pump and heat recovery multi-connection) system often has a large amount of refrigerant in the system due to its installation characteristics of long piping and high drop. In order to better control the amount of refrigerant in the system, a refrigerant storage tank or a refrigerant adjustment tank is often installed. . Through the liquid storage and discharge control of the refrigerant storage (adjustment) tank, the refrigerant circulation volume of the system is optimized and controlled to ensure the comfort and reliability control of the system. [0003] Such as figure 1 As shown, the refrigerant discharge of the refrigerant storage tank of the traditional multi-connected (heat pump or heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02
CPCF25B49/02F25B2400/051F25B2400/053F25B2700/21
Inventor 贾翔张仕强武连发
Owner GREE ELECTRIC APPLIANCES INC
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