CN114674094A - Air conditioner, method and device for regulating and controlling air conditioner refrigerant and storage medium - Google Patents

Air conditioner, method and device for regulating and controlling air conditioner refrigerant and storage medium Download PDF

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Publication number
CN114674094A
CN114674094A CN202210257154.3A CN202210257154A CN114674094A CN 114674094 A CN114674094 A CN 114674094A CN 202210257154 A CN202210257154 A CN 202210257154A CN 114674094 A CN114674094 A CN 114674094A
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China
Prior art keywords
refrigerant
pipeline
air conditioner
valve
compressor
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Pending
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CN202210257154.3A
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Chinese (zh)
Inventor
马振豪
荆涛
蔡泽瑶
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202210257154.3A priority Critical patent/CN114674094A/en
Publication of CN114674094A publication Critical patent/CN114674094A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application relates to the technical field of air conditioners and discloses a method for regulating and controlling a refrigerant of an air conditioner, which comprises the following steps: the utility model provides an air conditioner, includes the condensation circulating line that compressor, first electronic stop valve, outdoor heat exchanger, throttling arrangement, indoor heat exchanger, first check valve connected according to the preface constitute, still includes: the inlet end of the refrigerant storage pipeline is connected with the second outlet end of the first one-way valve, and the outlet end of the refrigerant storage pipeline is connected with a pipeline between the throttling device of the condensation circulating pipeline and the indoor heat exchanger; when the air conditioner is started, releasing the refrigerant to the condensation circulating pipeline, and then starting the compressor; when an air conditioner internal unit operates, part of refrigerant is recovered from a condensation circulating pipeline, and the operation of a compressor is kept; when the air conditioner is shut down, the refrigerant is recovered from the condensation circulating pipeline, and then the compressor is closed. Therefore, the pressure on the pipeline when the air conditioner indoor unit operates is reduced, the cooled volume expansion of the refrigerant is reduced, and the breakage of the liquid inlet and outlet pipe and the leakage of the refrigerant are avoided. The application also discloses a device for regulating and controlling the air conditioner refrigerant and a storage medium.

Description

Air conditioner, method and device for regulating and controlling air conditioner refrigerant and storage medium
Technical Field
The present disclosure relates to the field of air conditioning technologies, and in particular, to an air conditioner, a method and an apparatus for regulating and controlling a refrigerant of the air conditioner, and a storage medium.
Background
At present, in the working process of air conditioners in the market, an indoor unit and an outdoor unit are connected through a compressor, and refrigeration and heating are achieved through transmission of refrigerants. When the air conditioner works, the refrigerant in the pipeline is possibly excessive, and pressure is caused to the pipeline. When the air conditioner does not work, the refrigerant is in a static state in the liquid inlet and outlet pipe, the refrigerant is in a gas-liquid coexisting state in the liquid inlet and outlet pipe at the moment, when the weather is relatively cold, the refrigerant can be frozen when meeting cold, and is in a solid state, and the volume of the refrigerant is increased at the moment, so that the joint part of the liquid inlet and outlet pipe is easily expanded by the refrigerant in the frozen state. Causing refrigerant leakage and safety accidents.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides an air conditioner, a method and a device for regulating and controlling a refrigerant of the air conditioner and a storage medium, so that the pressure of redundant refrigerants on a pipeline when an indoor unit of the air conditioner runs is reduced, meanwhile, the volume expansion of the refrigerants in a cold state is reduced, and the breakage of a liquid inlet pipe and a liquid outlet pipe and the leakage of the refrigerants are avoided.
In some embodiments, the air conditioner includes a condensation circulation pipeline 1 formed by a compressor 10, a first electric cut-off valve 21, an outdoor heat exchanger 30, a throttling device 40, an indoor heat exchanger 50, and a first check valve 71, which are connected in sequence, and further includes: the inlet end of the refrigerant storage pipeline 2 is connected with the second outlet end of the first one-way valve 71, and the outlet end of the refrigerant storage pipeline is connected with a pipeline between the throttling device 40 of the condensation circulating pipeline 1 and the indoor heat exchanger 50; when the air conditioner is started, the refrigerant storage pipeline 2 is controlled to be in a state of releasing the refrigerant, the refrigerant is released to the condensation circulating pipeline 1, and then the compressor 10 is started; when an air conditioner internal unit operates, the refrigerant storage pipeline 2 is controlled to be in a pipeline pressure relief state, part of refrigerant is recycled from the condensation circulating pipeline 1, and the compressor 10 is kept to operate; when the air conditioner is shut down, the refrigerant storage pipeline 2 is controlled to be in a refrigerant recovery state, refrigerant is recovered from the condensation circulating pipeline 1, and then the compressor 10 is closed.
Alternatively, the refrigerant storage pipeline 2 includes: a pilot-operated sequence valve 80 connected to the second outlet port of the first check valve 71 and configured to open the valve in one direction when the pressure rises above a set value; a refrigerant tank 90 connected to the second outlet end of the pilot sequence valve 80 and configured to store a refrigerant; a second electrical cut-off valve 22, a first end of which is connected to an outlet end of the refrigerant compartment 90, and which is configured to place the refrigerant storage pipeline 2 in a refrigerant releasing state in a controlled on state and place the refrigerant storage pipeline 2 in a refrigerant recovering state in a controlled off state; the second check valve 72 has a first end connected to the second end of the second electrical shutoff valve 22, and a second end connected to the refrigerant line between the expansion device 40 and the indoor heat exchanger 50, and is configured to release the refrigerant to the condensation circulation line 1 in a single direction.
Optionally, the air conditioner further includes: the controller is configured to receive a starting instruction of an air conditioner internal unit, the refrigerant storage pipeline 2 is in a refrigerant releasing state, the refrigerant storage pipeline 2 releases the refrigerant, and the refrigerant is released and the compressor 10 is started according to the pressure parameter control; when the air conditioner internal unit operates, the refrigerant storage pipeline 2 is in a pipeline pressure relief state, and the hydraulic control sequence valve 80 is controlled to be opened and closed according to pressure parameters; when an air conditioner internal unit shutdown instruction is received, the refrigerant storage pipeline 2 is in a refrigerant recovery state, the hydraulic control sequence valve 80 is controlled to open and recover the refrigerant according to the pressure parameter, and the compressor 10 is closed.
Optionally, the air conditioner further includes: a first pressure sensor 61 electrically connected to the controller, provided at a front end of the first check valve 71, configured to detect a first pressure parameter between the indoor heat exchanger 50 and the first check valve 71, and detect a valve-opening pressure parameter for opening the pilot-operated sequence valve 80 between the first check valve 71 and the pilot-operated sequence valve 80; the second pressure sensor 62, electrically connected to the controller, is disposed at the inlet end of the refrigerant compartment 90 and configured to detect a second pressure parameter between the refrigerant compartments 90 of the pilot-controlled sequence valve 80.
In some embodiments, the method for conditioning an air conditioning refrigerant includes: when a starting instruction of an air conditioner internal unit is received, the refrigerant storage pipeline is in a state of releasing the refrigerant, the refrigerant storage pipeline releases the refrigerant, and the refrigerant is released and the compressor is started according to the pressure parameter control; when an air conditioner internal unit operates, the refrigerant storage pipeline is in a pipeline pressure relief state, the opening and the closing of the hydraulic control sequence valve are controlled according to pressure parameters, and the operation of a compressor is kept; when an air conditioner indoor unit shutdown instruction is received, the refrigerant storage pipeline is in a refrigerant recovery state, the hydraulic control sequence valve is controlled to be opened and recovered according to the pressure parameters, and the compressor is closed.
Optionally, the refrigerant storage pipeline releasing the refrigerant includes: opening a second electric stop valve in the refrigerant storage pipeline and a first electric stop valve in the condensation circulating pipeline; and releasing the refrigerant in the refrigerant bin in the refrigerant storage pipeline.
Optionally, the controlling of releasing the refrigerant and starting the compressor according to the pressure parameter includes: judging whether a second pressure parameter of the refrigerant storage pipeline is smaller than a second threshold value PL0, if so, starting the compressor, otherwise, judging the second pressure parameter; and judging whether the second pressure parameter is continuously reduced, if so, continuously releasing the refrigerant in the refrigerant bin, and otherwise, starting the compressor.
Optionally, the controlling the pilot-controlled sequence valve to open and close according to the pressure parameter includes: opening a first electric stop valve in a condensation circulating pipeline and closing a second electric stop valve in a refrigerant storage pipeline; judging whether the first pressure parameter of the condensation circulating pipeline is greater than a safety threshold value P0, if so, starting a hydraulic control sequence valve, otherwise, judging a second pressure parameter; and (4) opening the hydraulic control sequence valve, and collecting the refrigerant by the refrigerant bin. And judging whether the second pressure parameter is continuously reduced, closing the hydraulic control sequence valve if the second pressure parameter meets the conditions, and otherwise judging whether the first pressure parameter of the condensation circulating pipeline is larger than a safety threshold value P0.
Optionally, the controlling the pilot-controlled sequential valve to open and recover the refrigerant according to the pressure parameter includes: closing a second electric stop valve in the refrigerant storage pipeline and a first electric stop valve in the condensation circulating pipeline; judging whether a first pressure parameter of the condensation circulating pipeline is greater than a first threshold PH0, if so, keeping the compressor running, otherwise, shutting down the compressor; judging whether the valve opening pressure parameter is greater than a safety threshold value P0, if so, judging whether the valve opening pressure parameter continuously rises, otherwise, opening the hydraulic control sequence valve; opening a hydraulic control sequence valve, and recovering the refrigerant from a refrigerant bin of a refrigerant collection pipeline; and judging whether the valve opening pressure parameter is continuously increased, if so, keeping the compressor running, and if not, shutting down the compressor.
In some embodiments, the device for conditioning an air conditioning refrigerant includes: the processor is configured to execute the method for regulating and controlling the air conditioning refrigerant when the program instructions are executed.
In some embodiments, the storage medium comprises: and program instructions are stored, and when the program instructions are operated, the method for regulating and controlling the air-conditioning refrigerant is executed.
The method for regulating and controlling the air-conditioning refrigerant, the device for regulating and controlling the air-conditioning refrigerant and the storage medium provided by the embodiment of the disclosure can realize the following technical effects:
when the air conditioner indoor unit is started, the refrigerant is released from the refrigerant storage pipeline to the condensation circulation pipeline firstly, then the compressor is started, a part of refrigerant is recovered through the hydraulic control sequence valve in the operation process of the air conditioner indoor unit, and when the air conditioner indoor unit is shut down, the refrigerant storage pipeline recovers the refrigerant from the condensation circulation pipeline firstly, and then the compressor is shut down. Therefore, redundant refrigerants in the pipeline can be reduced, so that the pressure on the pipeline when the air conditioner indoor unit operates is reduced, meanwhile, the volume expansion of the refrigerant in a cold state is reduced, and the breakage of the liquid inlet and outlet pipe and the leakage of the refrigerant are avoided.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic diagram of a refrigerant control structure according to an embodiment of the disclosure;
Fig. 2 is a flow chart for controlling a refrigerant according to an embodiment of the disclosure;
fig. 3a is a flow chart for releasing refrigerant according to an embodiment of the disclosure;
fig. 3b is a schematic diagram illustrating a structure for releasing a refrigerant according to an embodiment of the disclosure;
fig. 4a is a flow chart for recycling a portion of refrigerant according to an embodiment of the disclosure;
fig. 4b is a schematic structural diagram of a refrigerant recycling device according to an embodiment of the disclosure;
fig. 5a is a flow chart for recycling a refrigerant according to an embodiment of the disclosure;
fig. 5b is a schematic view of a structure for recovering a refrigerant according to an embodiment of the disclosure;
fig. 6 is a schematic diagram of an apparatus for controlling a refrigerant according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.
With reference to fig. 1, a schematic diagram of a structure for controlling a refrigerant according to an embodiment of the present disclosure includes:
the refrigerant control is composed of a condensation circulation pipeline 1 and a refrigerant storage pipeline 2.
The condensation circulation line 1 is constituted by a compressor 10, a first electric shutoff valve 21, an outdoor heat exchanger 30, a throttle device 40, an indoor heat exchanger 50, and a first check valve 71 in this order of connection. Further included between the throttling means 40 of the condensation circulation line 1 and the indoor heat exchanger 50 is: a refrigerant storage pipeline 2.
The refrigerant storage pipeline 2 includes: a pilot-operated sequence valve 80 connected to the second outlet port of the first check valve 71; the refrigerant bin 90 is connected with the second outlet end of the hydraulic control sequence valve 80; a second electric stop valve 22, a first end of which is connected with the outlet end of the refrigerant compartment 90; and a second check valve 72 having a first end connected to a second end of the second electrical shutoff valve 22 and a second end connected to a refrigerant line between the throttle device 40 and the indoor heat exchanger 50.
In addition, a first pressure sensor 61, provided at a front end of the first check valve 71, configured to detect a first pressure parameter between the indoor heat exchanger 50 and the first check valve 71, and to detect a valve-opening pressure parameter for opening the pilot-operated sequence valve 80 between the first check valve 71 and the pilot-operated sequence valve 80; the second pressure sensor 62 is disposed at the inlet end of the refrigerant bin 90 and configured to detect a second pressure parameter between the pilot sequence valve 80 and the refrigerant bin 90.
Thus, this structure adds the refrigerant storage line 2 to the condensation cycle line 1. When the air conditioner internal unit is started, the refrigerant storage pipeline 2 is controlled to release the refrigerant to the condensation circulating pipeline 1 according to the second pressure parameter. When the air conditioner indoor unit operates, the opening and closing of the hydraulic control sequence valve 80 are controlled according to the first pressure parameter and the second pressure parameter, and part of refrigerant is recycled. When the air conditioner internal unit is shut down, the refrigerant storage pipeline 2 is controlled to recover the refrigerant from the condensation circulating pipeline 1 according to the first pressure parameter and the valve opening pressure parameter. The structure can realize the releasing of the refrigerant when the air conditioner indoor unit is started, the recovery of partial refrigerant when the air conditioner indoor unit is operated and the recovery of the refrigerant when the air conditioner indoor unit is shut down.
The air conditioner further comprises a controller (not labeled in the figure), and the controller is used for executing the method for regulating and controlling the air conditioner refrigerant provided by the embodiment of the application.
The controller is configured to receive a starting instruction of an air conditioner internal unit, the refrigerant storage pipeline 2 is in a refrigerant releasing state, the refrigerant storage pipeline 2 releases the refrigerant, and the refrigerant is released and the compressor 10 is started according to the pressure parameter control; when the air conditioner internal unit operates, the refrigerant storage pipeline 2 is in a pipeline pressure relief state, and the hydraulic control sequence valve 80 is controlled to be opened and closed according to pressure parameters; when an air conditioner internal unit shutdown instruction is received, the refrigerant storage pipeline 2 is in a refrigerant recovery state, the hydraulic control sequence valve 80 is controlled to open and recover the refrigerant according to the pressure parameter, and the compressor 10 is closed.
With reference to fig. 2, a flow chart for controlling refrigerant according to an embodiment of the present disclosure includes:
and S01, when the start-up instruction of the air conditioner indoor unit is received, the refrigerant storage pipeline is in a state of releasing the refrigerant, the refrigerant storage pipeline releases the refrigerant, and the refrigerant is released and the compressor is started according to the pressure parameter control.
And S02, when the air conditioner indoor unit operates, the refrigerant storage pipeline is in a pipeline decompression state, and the hydraulic control sequence valve is controlled to be opened and closed according to the pressure parameters to keep the compressor operating.
And S03, when an air conditioner indoor unit shutdown instruction is received, the refrigerant storage pipeline is in a refrigerant recovery state, the hydraulic control sequence valve is controlled to be opened and recovered according to the pressure parameter, and the compressor is closed.
Therefore, when a starting instruction of an air conditioner internal unit is received, the refrigerant storage pipeline releases the refrigerant to the condensation circulation pipeline, the refrigerant is released according to the pressure parameter control, and then the compressor is started. When an air conditioner internal unit operates, the hydraulic control sequence valve is controlled to be opened and closed according to the pressure parameters, redundant refrigerants are recycled, and the compressor is kept to operate. And when the air conditioner internal unit is in a shutdown instruction, controlling the hydraulic control sequence valve to open and recover the refrigerant according to the pressure parameter, and then closing the compressor. Therefore, redundant refrigerants can be reduced when the air conditioner indoor unit operates, and refrigerant residues in the refrigerant storage pipeline and the condensation circulating pipeline can be reduced after the air conditioner indoor unit operates.
Optionally, in step S01, the refrigerant storage pipeline releasing the refrigerant includes: opening a second electric stop valve in the refrigerant storage pipeline and a first electric stop valve in the condensation circulating pipeline; and releasing the refrigerant in the refrigerant storage pipeline.
Thus, the second electric cut-off valve in the refrigerant storage pipeline is opened to release the refrigerant to the condensation circulation pipeline, and the first electric cut-off valve in the condensation circulation pipeline is opened so that the refrigerant can circulate in the condensation circulation pipeline.
Optionally, in step S01, the controlling of releasing the refrigerant and starting the compressor according to the pressure parameter includes: judging whether a second pressure parameter of the refrigerant storage pipeline is smaller than a second threshold value PL0, if so, starting the compressor, otherwise, judging the second pressure parameter; and judging whether the second pressure parameter is continuously reduced, if so, continuously releasing the refrigerant in the refrigerant bin, and otherwise, starting the compressor.
In this way, when the second pressure parameter is smaller than the second threshold value PL0 and the second pressure parameter continues to decrease, the refrigerant is already released and can reach the compressor, so that the compressor can be started.
Optionally, in step S02, the controlling the pilot-controlled sequence valve to open and close according to the pressure parameter includes: opening a first electric stop valve in a condensation circulating pipeline and closing a second electric stop valve in a refrigerant storage pipeline; judging whether the first pressure parameter of the condensation circulating pipeline is greater than a safety threshold value P0, if so, starting a hydraulic control sequence valve, otherwise, judging a second pressure parameter; and (4) opening the hydraulic control sequence valve, and collecting the refrigerant by the refrigerant bin. And judging whether the second pressure parameter is continuously reduced, closing the hydraulic control sequence valve if the second pressure parameter meets the conditions, and otherwise judging whether the first pressure parameter of the condensation circulating pipeline is larger than a safety threshold value P0.
Therefore, when the air conditioner internal unit works, the pressure value of the condensation circulating pipeline is detected in real time, and when the pressure value exceeds the safety threshold value P0, part of refrigerant is recovered, so that the safety of the pipeline is ensured.
Optionally, in step S03, the controlling the pilot-controlled sequence valve to open and recover the refrigerant according to the pressure parameter includes: closing a second electric stop valve in the refrigerant storage pipeline and a first electric stop valve in the condensation circulating pipeline; judging whether a first pressure parameter of the condensation circulating pipeline is greater than a first threshold PH0, if so, keeping the compressor running, otherwise, shutting down the compressor; judging whether the valve opening pressure parameter is greater than a safety threshold value P0, if so, judging whether the valve opening pressure parameter continuously rises, otherwise, opening the hydraulic control sequence valve; opening a hydraulic control sequence valve, and recovering the refrigerant from a refrigerant bin of a refrigerant collection pipeline; and judging whether the valve opening pressure parameter continuously rises, if so, keeping the compressor running, otherwise, shutting down the compressor.
In this way, the first electric stop valve in the condensation circulation pipeline is closed, the condensation circulation pipeline is cut off, when the first pressure parameter exceeds the first threshold PH0 and the valve opening pressure parameter is greater than the safety threshold P0, the condensation circulation pipeline and the refrigerant storage pipeline have enough pressure, and the pilot-controlled sequence valve is opened, so that the refrigerant is pressed into the refrigerant storage pipeline. And when the valve opening pressure parameter does not continuously rise any more, the compressor is shut down.
With reference to fig. 3a, a flow chart for releasing a refrigerant according to an embodiment of the present disclosure, and fig. 3b, a schematic diagram of a structure for releasing a refrigerant according to an embodiment of the present disclosure include:
and S100, starting an air conditioner indoor unit.
S101, the compressor is not started temporarily.
And S102, opening a second electric stop valve in the refrigerant storage pipeline and a first electric stop valve in the condensation circulating pipeline.
And S103, releasing the refrigerant in the refrigerant bin in the refrigerant storage pipeline. As shown in fig. 3b, the refrigerant in the refrigerant storage pipe 2 in the refrigerant bin 90 is discharged to the condensing circulation pipe 1 in the direction of the arrow.
S104, determining whether the second pressure parameter < the second threshold PL0, if the condition is satisfied, executing step S106, otherwise executing step S105.
And S105, judging whether the second pressure parameter is continuously reduced, if so, returning to the step S103, and if not, executing the step S106.
And S106, starting the compressor.
Referring to fig. 4a, a flow chart for recovering a portion of refrigerant according to an embodiment of the present disclosure, and fig. 4b are schematic structural diagrams of a portion of refrigerant for recovery according to an embodiment of the present disclosure, including:
and S200, opening a first electric stop valve in the condensation circulating pipeline and closing a second electric stop valve in the refrigerant storage pipeline.
S201, judging whether the first pressure parameter of the condensation circulating pipeline is larger than a safety threshold value P0, if so, executing a step S203, otherwise, executing a step S202.
S202, judging that the second pressure parameter is continuously reduced, if the second pressure parameter meets the condition, returning to the step S201, and if not, executing the step S204.
And S203, starting the hydraulic control sequence valve. As shown in fig. 4b, the refrigerant is recovered into the refrigerant receiver 90 along arrows in the condensation circulation line 1 and the refrigerant storage line 2.
And S204, closing the hydraulic control sequence valve.
And S205, recovering the refrigerant from the refrigerant bin.
Referring to fig. 5a, a flow chart for recycling a refrigerant according to an embodiment of the present disclosure, and fig. 5b are schematic structural diagrams of a refrigerant recycling structure according to an embodiment of the present disclosure, which include:
and S300, turning off the air conditioner indoor unit.
And S301, closing the second electric stop valve in the refrigerant storage pipeline and the first electric stop valve in the condensation circulating pipeline.
S302, determine whether the first pressure sensor > the first threshold PH0, if the condition is satisfied, execute step S303, otherwise execute step S308.
And S303, continuing to operate the compressor.
S304, it is determined whether the valve opening pressure parameter is greater than the safety threshold P0, if so, step S307 is executed, otherwise, step S305 is executed.
S305, the pilot operated sequence valve is opened, as shown in fig. 5b, and the refrigerant is pressed into the refrigerant compartment 90 along the direction of the arrow in the condensation circulation pipeline 1.
And S306, recovering the refrigerant from the refrigerant bin of the refrigerant collection pipeline.
And S307, judging whether the valve opening pressure parameter is continuously increased or not, if so, returning to the step S303, otherwise, executing the step S308.
S308, the compressor is shut down.
Referring to fig. 6, an embodiment of the present disclosure provides an apparatus for regulating and controlling a refrigerant of an air conditioner, including a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to execute the method for conditioning the air-conditioning refrigerant according to the above embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101 is a storage medium and can be used for storing software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for regulating and controlling the air conditioning refrigerant in the foregoing embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, memory 101 may include high speed random access memory and may also include non-volatile memory.
The embodiment of the disclosure provides a product (such as a computer and the like) comprising the device for regulating and controlling the air-conditioning refrigerant.
The embodiment of the disclosure provides a storage medium storing computer-executable instructions configured to execute the method for regulating and controlling an air-conditioning refrigerant.
The storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a variety of media that can store program codes, such as a removable hard disk, a Read-Only Memory (ROM), and a Random Access Memory (RAM), and may also be transient storage media.
The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses, and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (11)

1. The utility model provides an air conditioner, includes compressor (10), first electric stop valve (21), outdoor heat exchanger (30), throttling arrangement (40), indoor heat exchanger (50), condensation circulation pipeline (1) that first check valve (71) constitute that connect gradually, its characterized in that still includes:
the inlet end of the refrigerant storage pipeline (2) is connected with the second outlet end of the first one-way valve (71), and the outlet end of the refrigerant storage pipeline is connected with a pipeline between the throttling device (40) of the condensation circulating pipeline (1) and the indoor heat exchanger (50);
when the air conditioner is started, the refrigerant storage pipeline (2) is controlled to be in a state of releasing the refrigerant, the refrigerant is released to the condensation circulating pipeline (1), and then the compressor (10) is started; when an air conditioner internal unit operates, the refrigerant storage pipeline (2) is controlled to be in a pipeline pressure relief state, part of refrigerants are recycled from the condensation circulating pipeline (1), and the compressor (10) is kept to operate; when the air conditioner is shut down, the refrigerant storage pipeline (2) is controlled to be in a refrigerant recovery state, the refrigerant is recovered from the condensation circulating pipeline (1), and then the compressor (10) is closed.
2. The air conditioner according to claim 1, wherein the refrigerant storage line (2) comprises:
a pilot-controlled sequence valve (80) connected to the second outlet port of the first one-way valve (71) and configured to open the valve one-way when the pressure rises above a set value;
A refrigerant storage (90) connected to the second outlet of the pilot sequence valve (80) and configured to store a refrigerant;
a second electric stop valve (22), the first end of which is connected with the outlet end of the refrigerant cabin (90), and the second electric stop valve is configured to enable the refrigerant storage pipeline (2) to be in a refrigerant releasing state under a controlled conduction state and enable the refrigerant storage pipeline (2) to be in a refrigerant recovery state under a controlled stop state;
and a second check valve (72) having a first end connected to a second end of the second electric shutoff valve (22) and a second end connected to a refrigerant line between the throttle device (40) and the indoor heat exchanger (50), and configured to release the refrigerant to the condensing cycle line (1) in a one-way manner.
3. The air conditioner according to claim 1, 2, further comprising:
the controller is configured to receive a starting instruction of an air conditioner internal unit, the refrigerant storage pipeline (2) is in a refrigerant releasing state, the refrigerant storage pipeline (2) releases the refrigerant, and the refrigerant is released and the compressor (10) is started according to pressure parameters; when an air conditioner indoor unit operates, the refrigerant storage pipeline (2) is in a pipeline pressure relief state, and the hydraulic control sequence valve (80) is controlled to be opened and closed according to pressure parameters; when an air conditioner internal unit shutdown instruction is received, the refrigerant storage pipeline (2) is in a refrigerant recovery state, the hydraulic control sequence valve (80) is controlled to open and recover the refrigerant according to the pressure parameter, and the compressor (10) is closed.
4. The air conditioner of claim 3, further comprising:
a first pressure sensor (61) electrically connected with the controller, arranged at the front end of the first check valve (71), and configured to detect a first pressure parameter between the indoor heat exchanger (50) and the first check valve (71) and detect a valve opening pressure parameter for opening the pilot-controlled sequence valve (80) between the first check valve (71) and the pilot-controlled sequence valve (80);
and the second pressure sensor (62) is electrically connected with the controller, is arranged at the inlet end of the refrigerant bin (90) and is configured to detect a second pressure parameter between the hydraulic control sequence valve (80) and the refrigerant bin (90).
5. A method for conditioning a refrigerant of an air conditioner as claimed in any one of claims 1 to 4, the method comprising:
when a starting instruction of an air conditioner internal unit is received, the refrigerant storage pipeline is in a state of releasing the refrigerant, the refrigerant storage pipeline releases the refrigerant, and the refrigerant is released and the compressor is started according to the control of pressure parameters;
when an air conditioner internal unit operates, the refrigerant storage pipeline is in a pipeline pressure relief state, and the opening and closing of the hydraulic control sequence valve are controlled according to pressure parameters to keep the compressor operating;
when an air conditioner internal unit shutdown instruction is received, the refrigerant storage pipeline is in a refrigerant recovery state, the hydraulic control sequence valve is controlled to be opened and recovered according to the pressure parameters, and the compressor is closed.
6. The method of claim 5, wherein the refrigerant storage line releasing refrigerant comprises:
opening a second electric stop valve in the refrigerant storage pipeline and a first electric stop valve in the condensation circulating pipeline;
and releasing the refrigerant in the refrigerant storage pipeline.
7. The method as claimed in claim 6, wherein the controlling of the refrigerant release and the compressor start-up according to the pressure parameter comprises:
judging whether a second pressure parameter of the refrigerant storage pipeline is smaller than a second threshold value PL0, if so, starting the compressor, otherwise, judging the second pressure parameter;
and judging whether the second pressure parameter is continuously reduced, if so, continuously releasing the refrigerant in the refrigerant bin, and otherwise, starting the compressor.
8. The method of claim 5, wherein said controlling pilot-controlled sequence valve opening and closing based on pressure parameters comprises:
opening a first electric stop valve in a condensation circulating pipeline and closing a second electric stop valve in a refrigerant storage pipeline;
judging whether the first pressure parameter of the condensation circulating pipeline is greater than a safety threshold value P0, if so, starting a hydraulic control sequence valve, otherwise, judging a second pressure parameter;
Opening a hydraulic control sequence valve, and collecting refrigerants by a refrigerant bin;
and judging whether the second pressure parameter is continuously reduced, if so, closing the hydraulic control sequence valve, and otherwise, judging whether the first pressure parameter of the condensation circulating pipeline is greater than a safety threshold value P0.
9. The method of claim 5, wherein controlling the pilot-controlled sequence valve to open and recover refrigerant based on the pressure parameter comprises:
closing a second electric stop valve in the refrigerant storage pipeline and a first electric stop valve in the condensation circulating pipeline;
judging whether a first pressure parameter of the condensation circulating pipeline is greater than a first threshold PH0, if so, keeping the compressor running, otherwise, shutting down the compressor;
judging whether the valve opening pressure parameter is greater than a safety threshold value P0, if so, judging whether the valve opening pressure parameter continuously rises, otherwise, opening the hydraulic control sequence valve;
opening a hydraulic control sequence valve, and recovering the refrigerant from a refrigerant bin of the refrigerant collection pipeline;
and judging whether the valve opening pressure parameter is continuously increased, if so, keeping the compressor running, and if not, shutting down the compressor.
10. An apparatus for controlling an air conditioning refrigerant, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute the method for conditioning an air conditioning refrigerant according to any one of claims 5 to 9 when executing the program instructions.
11. A storage medium storing program instructions, wherein the program instructions, when executed, perform the method for conditioning an air conditioning refrigerant according to any one of claims 5 to 9.
CN202210257154.3A 2022-03-16 2022-03-16 Air conditioner, method and device for regulating and controlling air conditioner refrigerant and storage medium Pending CN114674094A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100050668A1 (en) * 2006-11-30 2010-03-04 Carrier Corporation Refrigerant Charge Storage
CN109059334A (en) * 2018-07-18 2018-12-21 Tcl空调器(中山)有限公司 Air conditioner and its control method, control device, readable storage medium storing program for executing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100050668A1 (en) * 2006-11-30 2010-03-04 Carrier Corporation Refrigerant Charge Storage
CN109059334A (en) * 2018-07-18 2018-12-21 Tcl空调器(中山)有限公司 Air conditioner and its control method, control device, readable storage medium storing program for executing

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