CN110836556A - Operation control device and method, air conditioning system, and computer-readable storage medium - Google Patents

Operation control device and method, air conditioning system, and computer-readable storage medium Download PDF

Info

Publication number
CN110836556A
CN110836556A CN201911144160.2A CN201911144160A CN110836556A CN 110836556 A CN110836556 A CN 110836556A CN 201911144160 A CN201911144160 A CN 201911144160A CN 110836556 A CN110836556 A CN 110836556A
Authority
CN
China
Prior art keywords
heat exchanger
compressor
way valve
communicated
outdoor unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911144160.2A
Other languages
Chinese (zh)
Inventor
万永强
许永锋
梁伯启
李波
杨柳文
贾志洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Heating and Ventilating Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, GD Midea Heating and Ventilating Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201911144160.2A priority Critical patent/CN110836556A/en
Publication of CN110836556A publication Critical patent/CN110836556A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • 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
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02742—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two four-way 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves

Abstract

The invention provides an operation control device and method, an air conditioning system and a computer readable storage medium. Wherein, operation control device is used for the off-premises station, and the off-premises station includes: compressor, first heat exchanger, second heat exchanger and cross valve, first heat exchanger and second heat exchanger are linked together, and operation control device includes: a memory configured to store a computer program; a processor configured to execute a computer program to implement: receiving a detection instruction; and controlling the four-way valve to change the direction, so that one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one is communicated with an air inlet of the compressor. According to the operation control device provided by the invention, the four-way valve is controlled to change direction when a detection instruction is received, so that the outdoor unit forms a refrigerant circulation loop to carry out factory detection or self-inspection, the detection cost and the maintenance cost are greatly reduced, and the production efficiency is improved.

Description

Operation control device and method, air conditioning system, and computer-readable storage medium
Technical Field
The present invention relates to the field of air conditioner technology, and in particular, to an operation control device, an operation control method, an air conditioning system, and a computer-readable storage medium.
Background
At present, an outdoor unit of an air conditioning system is usually connected with an indoor unit through a pipeline and a circuit for detection before leaving a factory, so that the production efficiency is reduced, the detection cost is increased, and meanwhile, the quality of the outdoor unit is influenced due to operations such as pipe welding, pipe connection, wiring and the like on the outdoor unit, and the secondary repair cost is increased.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the invention proposes an operation control device.
A second aspect of the invention proposes an operation control method.
A third aspect of the present invention provides an air conditioning system.
A fourth aspect of the present invention is directed to a computer-readable storage medium.
In view of the above, a first aspect of the present invention provides an operation control device for an outdoor unit, the outdoor unit including: compressor, first heat exchanger, second heat exchanger and cross valve, first heat exchanger and second heat exchanger are linked together, and operation control device includes: a memory configured to store a computer program; a processor configured to execute a computer program to implement: receiving a detection instruction; and controlling the four-way valve to change the direction, so that one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one is communicated with an air inlet of the compressor.
The invention provides an operation control device for an outdoor unit. The operation control apparatus comprises a memory configured to store a computer program and a processor configured to execute the computer program to implement the following control strategy. The outdoor unit can form a refrigerant circulation loop by itself, and then the outdoor unit can be independently utilized to complete factory detection or self-inspection of the outdoor unit, thereby avoiding the problems that the related technology needs to communicate the outdoor unit with the indoor unit to form the refrigerant circulation loop to carry out factory detection or self-inspection of the outdoor unit so as to increase the detection cost, and the like, The problem of production efficiency is reduced to, carry out operations such as welded tube, takeover, wiring on the off-premises station and make off-premises station and indoor set be linked together when having influenced the quality of off-premises station, increased the cost that the off-premises station was reprocessed once more, consequently, this application is through controlling the switching-over of cross valve when receiving the detection instruction, makes off-premises station self form refrigerant circulation return circuit and dispatches from the factory and detect or the self-checking, convenient operation, greatly reduced detection cost and cost of maintenance, and improved production efficiency, be suitable for popularization and application.
Specifically, this application is through regarding as indoor heat exchanger in the first heat exchanger of off-premises station and one in the second heat exchanger, another as outdoor heat exchanger, and make first heat exchanger and second heat exchanger be linked together with the air inlet and the gas vent of compressor respectively, make the off-premises station need not be linked together with the indoor set, utilize off-premises station self can realize the circulation of refrigerant, and then accomplish the outgoing detection or the self-checking, greatly reduced detection cost and cost of maintenance, and improved production efficiency, make and utilize less cost can learn the outgoing detection and the self-checking result of off-premises station, be suitable for popularization and application.
In addition, the operation control device in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, further, the four-way valve includes a first four-way valve and a second four-way valve, the detection instruction is a refrigeration detection instruction, the processor executes a computer program to realize reversing of the four-way valve, so that one of the first heat exchanger and the second heat exchanger is communicated with the exhaust port of the compressor, and the other is communicated with the air inlet of the compressor, including: and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with an exhaust port of the compressor, and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with an air inlet of the compressor.
In the technical scheme, a specific operation control scheme of the outdoor unit is provided. The four-way valve comprises a first four-way valve and a second four-way valve, the first heat exchanger can be communicated with the compressor through reversing of the first four-way valve, and the second heat exchanger can be communicated with the compressor through reversing of the second four-way valve. When the detection instruction is a refrigeration detection instruction, the first four-way valve is controlled to be reversed to enable the first heat exchanger to be communicated with the exhaust port of the compressor, the second four-way valve is reversed to enable the second heat exchanger to be communicated with the air inlet of the compressor, and due to the fact that the first heat exchanger is communicated with the second heat exchanger, the refrigerant flows through the first heat exchanger from the exhaust port of the compressor to dissipate heat, flows through the second heat exchanger from the first heat exchanger to absorb heat, and then returns to the compressor from the air inlet of the compressor, and the outdoor unit is enabled to form a refrigerant circulation loop under the condition that the outdoor unit is not. At the moment, the first heat exchanger is used as an outdoor heat exchanger, the second heat exchanger is used as an indoor heat exchanger, so that the refrigerating cycle of the outdoor unit during factory inspection or self-inspection is realized, and the outdoor unit-based further detection under the refrigerating cycle is facilitated.
In any of the above technical solutions, further, the step of controlling the four-way valve to reverse by the processor executing a computer program to implement control of the first heat exchanger and the second heat exchanger to communicate with the exhaust port of the compressor and communicate with the intake port of the compressor includes: and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with the exhaust port of the compressor, and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with the air inlet of the compressor.
In the technical scheme, another specific operation control scheme of the outdoor unit is provided. When the detection instruction is a heating detection instruction, the second four-way valve is controlled to be reversed to enable the second heat exchanger to be communicated with the exhaust port of the compressor, the first four-way valve is reversed to enable the first heat exchanger to be communicated with the air inlet of the compressor, and the first heat exchanger is communicated with the second heat exchanger. At the moment, the first heat exchanger is used as an outdoor heat exchanger, the second heat exchanger is used as an indoor heat exchanger, and therefore heating circulation during factory inspection or self-inspection of the outdoor unit is achieved, and further detection based on the outdoor unit under the heating circulation is facilitated.
In any of the above solutions, further, the processor is further configured to execute the computer program to implement: and based on the control of the reversing of the four-way valve, one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one is communicated with an air inlet of the compressor, and then the running parameters and/or the environmental parameters of the outdoor unit are detected and fed back.
In the technical scheme, after one of the first heat exchanger and the second heat exchanger is communicated with the exhaust port of the compressor and the other is communicated with the air inlet of the compressor based on the control of the reversing of the four-way valve, the processor is further configured to execute a computer program to realize the detection and feedback of the operation parameters and/or the environmental parameters of the outdoor unit, so that under the condition that the outdoor unit forms a refrigerant circulation loop, the detection of other items during factory detection or self-detection of the outdoor unit is completed by detecting and feeding back the operation parameters or the environmental parameters or the operation parameters and the environmental parameters of the outdoor unit, and the judgment of whether the outdoor unit meets the factory requirements or the use requirements is facilitated.
According to a second aspect of the present invention, there is provided an operation control method for an outdoor unit, the outdoor unit including: the operation control method comprises the following steps of: receiving a detection instruction; and controlling the four-way valve to change the direction, so that one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one is communicated with an air inlet of the compressor.
The invention provides an operation control method for an outdoor unit. The operation control method comprises the steps of receiving a detection instruction, controlling the reversing of the four-way valve, enabling one of the first heat exchanger and the second heat exchanger to be communicated with an exhaust port of the compressor, and enabling the other heat exchanger to be communicated with an air inlet of the compressor, so that when the outdoor unit is detected, the exhaust port and the air inlet of the compressor are both communicated with the heat exchangers, namely, after being discharged through the exhaust port of the compressor, a refrigerant is subjected to heat exchange through one of the first heat exchanger and the second heat exchanger, and then flows back to the compressor through the other heat exchange again through the air inlet of the compressor, so that a refrigerant circulation loop is formed among the compressor, the first heat exchanger and the second heat exchanger, namely, the outdoor unit can form the refrigerant circulation loop, further, the outdoor unit can be used alone to complete factory detection or self-detection on the outdoor unit, and the problem that the outdoor unit, The problem of production efficiency is reduced to, carry out operations such as welded tube, takeover, wiring on the off-premises station and make off-premises station and indoor set be linked together when having influenced the quality of off-premises station, increased the cost that the off-premises station was reprocessed once more, consequently, this application is through controlling the switching-over of cross valve when receiving the detection instruction, makes off-premises station self form refrigerant circulation return circuit and dispatches from the factory and detect or the self-checking, convenient operation, greatly reduced detection cost and cost of maintenance, and improved production efficiency, be suitable for popularization and application.
Specifically, the detection of the outdoor unit is generally divided into detection of the outdoor unit when the indoor unit heats and detection of the outdoor unit when the indoor unit refrigerates, one of a first heat exchanger and a second heat exchanger of the outdoor unit is used as an indoor heat exchanger, the other one of the first heat exchanger and the second heat exchanger is used as an outdoor heat exchanger, the first heat exchanger and the second heat exchanger are respectively communicated with an air inlet and an air outlet of a compressor, the outdoor unit does not need to be communicated with the indoor unit, the circulation of a refrigerant can be realized by the outdoor unit, delivery detection or self-checking is further completed, the detection cost and the maintenance cost are greatly reduced, the production efficiency is improved, delivery detection and self-checking results of the outdoor unit can be obtained by using small cost, and.
In the above technical solution, further, the four-way valve includes a first four-way valve and a second four-way valve, the detection instruction is a refrigeration detection instruction, the four-way valve is controlled to reverse, so that one of the first heat exchanger and the second heat exchanger is communicated with the exhaust port of the compressor, and the other one is communicated with the air inlet of the compressor, and the method specifically includes the steps of: and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with the exhaust port of the compressor and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with the air inlet of the compressor based on the detection instruction as a refrigeration detection instruction.
In the technical scheme, a specific operation control scheme of the outdoor unit is provided. The four-way valve of the outdoor unit comprises a first four-way valve and a second four-way valve, the first heat exchanger can be communicated with the compressor through reversing of the first four-way valve, and the second heat exchanger can be communicated with the compressor through reversing of the second four-way valve. The operation control method of the outdoor unit comprises the following steps: when the detection instruction is a refrigeration detection instruction, the refrigeration detection instruction is received, the first four-way valve is controlled to be reversed to enable the first heat exchanger to be communicated with the exhaust port of the compressor, the second four-way valve is reversed to enable the second heat exchanger to be communicated with the air inlet of the compressor, and as the first heat exchanger is communicated with the second heat exchanger, at the moment, the refrigerant flows through the first heat exchanger from the exhaust port of the compressor to dissipate heat, flows through the second heat exchanger from the first heat exchanger to absorb heat, and then returns to the compressor from the air inlet of the compressor, so that the outdoor unit forms a refrigerant circulation loop under the condition that the outdoor unit is not. At the moment, the first heat exchanger is used as an outdoor heat exchanger, the second heat exchanger is used as an indoor heat exchanger, so that the refrigerating cycle of the outdoor unit during factory inspection or self-inspection is realized, and the outdoor unit-based further detection under the refrigerating cycle is facilitated.
In any of the above technical solutions, further, the step of controlling the four-way valve to reverse to enable one of the first heat exchanger and the second heat exchanger to be communicated with the exhaust port of the compressor and the other to be communicated with the air inlet of the compressor includes: and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with the exhaust port of the compressor, and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with the air inlet of the compressor.
In the technical scheme, another specific operation control scheme of the outdoor unit is provided. When the detection instruction is a heating detection instruction, the heating detection instruction is received, the second four-way valve is controlled to be reversed to enable the second heat exchanger to be communicated with the exhaust port of the compressor, the first four-way valve is reversed to enable the first heat exchanger to be communicated with the air inlet of the compressor, the first heat exchanger is communicated with the second heat exchanger, at the moment, the refrigerant is radiated by the second heat exchanger through the exhaust port of the compressor, and after flowing through the first heat exchanger by the second heat exchanger to absorb heat, the refrigerant returns to the compressor through the air inlet of the compressor, and the outdoor unit forms a refrigerant circulation loop under the condition that the outdoor unit is not communicated with the indoor. At the moment, the first heat exchanger is used as an outdoor heat exchanger, the second heat exchanger is used as an indoor heat exchanger, and therefore heating circulation during factory inspection or self-inspection of the outdoor unit is achieved, and further detection based on the outdoor unit under the heating circulation is facilitated.
Further, the first heat exchanger can be used as an indoor heat exchanger, the second heat exchanger can be used as an outdoor heat exchanger, and the heating cycle and the refrigerating cycle can be completed by the outdoor unit when factory inspection or self-inspection is finished. Specifically, based on the detection instruction being a refrigeration detection instruction, the second four-way valve is controlled to be reversed to enable the second heat exchanger to be communicated with the exhaust port of the compressor, and the first four-way valve is reversed to enable the first heat exchanger to be communicated with the air inlet of the compressor; and based on the detection instruction as a heating detection instruction, controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with an exhaust port of the compressor, and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with an air inlet of the compressor.
Furthermore, the four-way valve is controlled to be reversed respectively according to different detection instructions to enable the first heat exchanger or the second four-way valve to be communicated with the exhaust port of the compressor, meanwhile, the second heat exchanger or the first heat exchanger is communicated with the air inlet of the compressor, so that the first heat exchanger and the second heat exchanger are communicated with different positions of the compressor under different detection instructions, the outdoor unit can be fully and carefully detected, and the accuracy and the reasonability of detection results can be improved.
In any of the above technical solutions, further, after the step of controlling the four-way valve to reverse to communicate one of the first heat exchanger and the second heat exchanger with the exhaust port of the compressor and communicate the other with the intake port of the compressor, the method further includes: and detecting and feeding back the operating parameters and/or environmental parameters of the outdoor unit.
In the technical scheme, after the step of controlling the four-way valve to change the direction, so that one of the first heat exchanger and the second heat exchanger is communicated with the exhaust port of the compressor, and the other one is communicated with the air inlet of the compressor, namely under the condition that the outdoor unit forms a refrigerant circulation loop, the operation parameters, or the environment parameters, or the operation parameters and the environment parameters of the outdoor unit are detected and fed back, so that other item detection during factory detection or self-detection of the outdoor unit is completed, and whether the outdoor unit meets factory requirements or use requirements is favorably judged.
It is understood that, in the case where the outdoor unit itself forms a refrigerant circulation circuit, the outdoor unit may be subjected to a fault detection or a regular detection.
Specifically, the operation parameters of the outdoor unit include an operation current, an operation voltage, a refrigerant temperature and a refrigerant pressure at different positions of the pipeline, a temperature of the first heat exchanger, a temperature of the second heat exchanger, and may also be other operation parameters meeting the requirements, and the environmental parameters include an environmental temperature and an environmental humidity, and may also be other parameters meeting the requirements.
According to a third aspect of the present invention, there is provided an air conditioning system comprising: the outdoor unit comprises a compressor, a first heat exchanger, a second heat exchanger and a four-way valve, wherein the first heat exchanger is communicated with the second heat exchanger; the outdoor unit is communicated with the indoor units through a plurality of first valves; and the operation control device of any one of the above technical solutions, the operation control device is configured to control the four-way valve to change direction.
The air conditioning system comprises an outdoor unit, a plurality of indoor units and the operation control device in any technical scheme, wherein the outdoor unit comprises a compressor, a first heat exchanger, a second heat exchanger, a four-way valve and a plurality of first valves, the first heat exchanger is communicated with the second heat exchanger, the outdoor unit is communicated with the indoor units through the first valves, and the operation control device is configured to control the four-way valve to change directions. Since the air conditioning system includes the operation control device according to any one of the above technical solutions, all the beneficial effects of the operation control device are achieved, and are not described herein again.
Furthermore, the outdoor unit is communicated with the indoor units through the first valves, so that after the outdoor unit is qualified in detection under the condition that the outdoor unit utilizes a refrigerant circulation loop formed by the outdoor unit, one or more operation modes of heating, refrigerating and standby can be executed on the indoor units through the communication between the first valves and the indoor units.
In any of the above technical solutions, further, the outdoor unit further includes: the exhaust port of the compressor is communicated with the four-way valve through the oil separator; the air inlet of the compressor is communicated with the four-way valve through the gas-liquid separator; the throttling component is connected with the first heat exchanger and/or the second heat exchanger; and a second valve through which a portion of the first valve communicates with the compressor.
In the technical scheme, the outdoor unit further comprises an oil separator, and the exhaust port of the compressor is communicated with the four-way valve through the oil separator, so that lubricating oil in high-pressure steam exhausted from the exhaust port of the compressor is separated by the oil separator, the air conditioning system can be ensured to operate safely and efficiently, and the reliability of products is improved.
The outdoor unit also comprises a gas-liquid separator, wherein the gas inlet of the compressor is communicated with the four-way valve through the gas-liquid separator, so that a gas-liquid mixture flowing through the gas-liquid separator is separated by the gas-liquid separator, the separated gas flows into the compressor from the gas inlet of the compressor, and the separated liquid is stored, thereby preventing the liquid from entering the compressor along with the gas to reduce the service life of the compressor and effectively ensuring the reliability of the compressor.
The outdoor unit further comprises a throttling component, and the throttling component is connected with the first heat exchanger and/or the second heat exchanger, so that the flow of the refrigerant flowing through the first heat exchanger or the second heat exchanger or the first heat exchanger and the second heat exchanger is adjusted by the throttling component, throttling and pressure reduction are facilitated, the superheat degree is controlled, a good heating or refrigerating effect is guaranteed, and the reliability of a product is improved. It is understood that the throttling part may include a first throttling valve communicated with the first heat exchanger for regulating a flow rate of the refrigerant flowing through the first heat exchanger, and a second throttling valve communicated with the second heat exchanger for regulating a flow rate of the refrigerant flowing through the second heat exchanger.
The outdoor unit also comprises a second valve, when the outdoor unit is communicated with the indoor units through the plurality of first valves, and at least one indoor unit needs to be heated, part of the first valves are communicated with the compressor through the second valve, so that the exhaust port of the compressor is communicated with the indoor unit needing to be heated to realize the circulation of a refrigerant.
In any of the above technical solutions, further, the number of the compressors is at least one; the number of the first heat exchangers is at least one; the number of the second heat exchangers is at least one; the second valve is a four-way valve.
In the technical scheme, the number of the compressors is at least one, different numbers of the compressors can meet different numbers of indoor units and different requirements on heating or refrigerating capacity, and the application range is wide. Specifically, the compressor comprises a first compressor and a second compressor, wherein the exhaust port of the first compressor is communicated with the exhaust port of the second compressor, and the air inlet of the first compressor is communicated with the air inlet of the second compressor.
The quantity of the first heat exchangers is at least one, the quantity of the second heat exchangers is at least one, different quantities of the first heat exchangers and the second heat exchangers can meet different requirements of indoor units on different quantities and heating or refrigerating capacities, and the application range is wide. Specifically, when the outdoor unit itself forms a refrigerant circulation loop for factory inspection or self-inspection, the plurality of first heat exchangers may be used together as indoor heat exchangers or outdoor heat exchangers, and correspondingly, the plurality of second heat exchangers may be used together as outdoor heat exchangers or indoor heat exchangers.
Furthermore, the second valve is a four-way valve, different second valves are communicated with the exhaust port of the compressor by controlling the four-way valve to change the direction, and then the exhaust port of the compressor is communicated with different indoor units to heat different indoor units.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when being executed by a processor, implements the steps of the operation control method according to any one of the above technical solutions, so as to achieve all the technical effects of the operation control method, and therefore, the description thereof is omitted here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view illustrating a first operation state of an air conditioning system according to an embodiment of the related art;
fig. 2 is a schematic structural view illustrating a second operation state of an air conditioning system according to an embodiment of the related art;
FIG. 3 illustrates a schematic block diagram of an operation control apparatus provided in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural view illustrating an outdoor unit according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating a first operation state of an outdoor unit according to an embodiment of the present invention;
fig. 6 is a schematic structural view illustrating a second operation state of an outdoor unit according to an embodiment of the present invention;
FIG. 7 is a schematic flow chart diagram showing an operation control method according to a first embodiment of the present invention;
fig. 8 is a schematic flow chart showing an operation control method according to a second embodiment of the present invention;
fig. 9 is a schematic flow chart showing an operation control method according to a third embodiment of the present invention;
fig. 10 is a schematic flow chart showing an operation control method according to a fourth embodiment of the present invention;
fig. 11 illustrates a schematic block diagram of an air conditioning system provided in accordance with an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:
100 'outdoor unit, 110' compressor, 112 'first compressor, 114' second compressor, 120 'four-way valve, 122' first four-way valve, 124 'second four-way valve, 132' first heat exchanger, 134 'second heat exchanger, 140' first valve, 142 'first valve a, 144' first valve b, 146 'first valve c, 148' first valve d, 150 'oil separator, 160' gas-liquid separator, 170 'throttling component, 172' first throttling valve, 174 'second throttling valve, 180' second valve, 200 'indoor unit, 202' first indoor unit, 204 'second indoor unit, 206' third indoor unit, 208 'fourth indoor unit, 210' fifth indoor unit, 212 'sixth indoor unit, 400' air conditioning system.
Wherein, the correspondence between the reference numbers and the part names in fig. 3 to 6 and 11 is:
100 outdoor unit, 110 compressor, 112 first compressor, 114 second compressor, 120 four-way valve, 122 first four-way valve, 124 second four-way valve, 132 first heat exchanger, 134 second heat exchanger, 140 first valve, 142 first valve a, 144 first valve b, 146 first valve c, 148 first valve d, 150 oil separator, 160 gas-liquid separator, 170 throttling component, 172 first throttling valve, 174 second throttling valve, 180 second valve, 200 indoor unit, 300 operation control device, 310 storage, 320 processor, 400 air conditioning system.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
An operation control device 300, an operation control method, an air conditioning system 400, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 3 to 11.
Example one
As shown in fig. 3 to 6, according to a first aspect of the present invention, there is provided an operation control device 300 for an outdoor unit 100, the outdoor unit 100 including a compressor 110, a first heat exchanger 132, a second heat exchanger 134, and a four-way valve 120, the first heat exchanger 132 and the second heat exchanger 134 being in communication, the operation control device 300 comprising: a memory 310 and a processor 320, wherein the memory 310 is configured to store a computer program and the processor 320 is configured to execute the computer program to implement: receiving a detection instruction; the four-way valve 120 is controlled to be switched such that one of the first heat exchanger 132 and the second heat exchanger 134 communicates with the discharge port of the compressor 110 and the other communicates with the intake port of the compressor 110.
Specifically, as shown in fig. 4, the outdoor unit 100 includes a compressor 110, a first heat exchanger 132, a second heat exchanger 134, and a four-way valve 120, and the first heat exchanger 132 and the second heat exchanger 134 are communicated with each other. As shown in fig. 3, the operation control apparatus 300 includes a memory 310 and a processor 320, the memory 310 is configured to store a computer program, and the processor 320 is configured to execute the computer program to implement the following control strategy. Receiving a detection instruction, controlling the four-way valve 120 to change direction, so that one of the first heat exchanger 132 and the second heat exchanger 134 is communicated with the exhaust port of the compressor 110, and the other is communicated with the air inlet of the compressor 110, so that the exhaust port and the air inlet of the compressor 110 are both communicated with the heat exchangers, that is, after being discharged through the exhaust port of the compressor 110, a refrigerant exchanges heat through one of the first heat exchanger 132 and the second heat exchanger 134, and then flows back to the compressor 110 through the other heat exchange again through the air inlet of the compressor 110, so that a refrigerant circulation loop is formed among the compressor 110, the first heat exchanger 132 and the second heat exchanger 134, so that the outdoor unit 100 can form a refrigerant circulation loop, and further the outdoor unit 100 can be used alone to complete factory detection or self-detection on the outdoor unit 100, thereby avoiding the increase of detection cost due to factory detection or self-detection on the outdoor, The problem of production efficiency is reduced, moreover, the quality of the outdoor unit is influenced when the outdoor unit is communicated with the indoor unit 200 by performing operations such as pipe welding, pipe connection and wiring on the outdoor unit, and the cost of re-repairing the outdoor unit is increased.
Specifically, the outdoor unit 100 is an outdoor unit of a heat recovery air conditioning system, and the outdoor unit of the heat recovery air conditioning system is usually connected to a plurality of indoor units 200, and compared with the indoor unit 200 connected to a general heat pump air conditioning system that can only operate in the same mode, the indoor unit 200 connected to the heat recovery air conditioning system can partially cool and partially heat, and thus the application range is wide. However, when the outdoor unit 100 ' of the air conditioning system 400 ' in the related art performs factory inspection or self-inspection, as shown in fig. 1 and 2, a plurality of indoor units 200 ' generally need to be connected, which is relatively high in cost.
Further, the outdoor unit 100 ' in the related art includes two compressors 110 ', a first heat exchanger 132 ', a second heat exchanger 134 ', a four-way valve 120 ', a first valve 140 ', a second valve 180 ', an indoor unit 200 ', an oil separator 150 ', a gas-liquid separator 160 ', and a throttling part 170 ', wherein the compressors 110 ' include two compressors 112 ' and 114 ', the four-way valve 120 ' includes two four-way valves 122 ' and 124 ', the throttling part 170 ' includes two throttling valves 172 ' communicating with the first heat exchanger 132 ' and two throttling valves 174 ' communicating with the second heat exchanger 134 ', and the first valves 140 ' are four, respectively, i.e., a first valve a142 ', a first valve b144 ', a first valve c146 ', and a first valve d148 '; the number of the indoor units 200 ' is six, and the six indoor units include a first indoor unit 202 ', a second indoor unit 204 ', a third indoor unit 206 ', a fourth indoor unit 208 ', a fifth indoor unit 210 ', and a sixth indoor unit 212 ', wherein the first indoor unit 202 ' and the second indoor unit 204 ' are in a cooling mode, the third indoor unit 206 ' is in a heating mode, and the fourth indoor unit 208 ', the fifth indoor unit 210 ', and the sixth indoor unit 212 ' are in a standby mode. When factory inspection or self-inspection is performed on the outdoor unit 100', a refrigerant cycle process is completed as follows: the compressor 110 'is started, the refrigerant is discharged from the discharge port of the compressor 110', and passes through the oil separator 150 ', the second valve 180', the first valve c146 ', and the third indoor unit 206' in the heating mode, and the refrigerant is circularly divided into two paths, wherein the first path is: the refrigerant flows from the third indoor unit 206 'in the heating mode, through the first indoor unit 202' in the cooling mode, through the second indoor unit 204 'in the cooling mode, through the first valve b 144', through the gas-liquid separator 160 ', and finally returns to the air inlet of the compressor 110'; the second path is: the refrigerant flows through the first valve a142 ', the throttling part 170', the first heat exchanger 132 'and/or the second heat exchanger 134', the four-way valve 120 ', and the gas-liquid separator 160' from the third indoor unit 206 'in the heating mode, and is finally sucked from the air inlet of the compressor 110', thereby completing the refrigerant circulation. The refrigerant in the second path may flow through the first heat exchanger 132 'and the second heat exchanger 134' at the same time and then flow back to the air inlet of the compressor 110 'through the gas-liquid separator 160', or the refrigerant in the second path may flow through only one of the first heat exchanger 132 'and the second heat exchanger 134' and then flow back to the air inlet of the compressor 110 'through the gas-liquid separator 160'.
Specifically, as shown in the embodiment of fig. 1, the refrigerant in the second path flows through the first valve a142 'by the third indoor unit 206' in the heating mode and then is split again, a portion of the refrigerant passes through the first throttle 172 ', the first heat exchanger 132', the first four-way valve 122 ', and the gas-liquid separator 160', and is finally sucked by the air inlet of the compressor 110 ', and another portion of the refrigerant passes through the second throttle 174', the second heat exchanger 134 ', the second four-way valve 124', and the gas-liquid separator 160 ', and is finally sucked by the air inlet of the compressor 110', so as to realize the circulation of the refrigerant. In another embodiment shown in fig. 2, after passing through the first valve a142 ' by the third indoor unit 206 ' in the heating mode, the refrigerant in the second path is finally sucked by the air inlet of the compressor 110 ' through the first throttle 172 ', the first heat exchanger 132 ', the first four-way valve 120 ', and the gas-liquid separator 160 ', and no refrigerant flows through the pipelines where the second throttle 174 ' and the second heat exchanger 134 ' are located, so that the refrigerant can be circulated as well. In the above-mentioned another embodiment, the first valve d 148' is in a closed state.
However, in the above embodiments of the related art, the outdoor unit 100 ' needs to be connected to the indoor unit 200 ', so that there are many pipelines and lines, the refrigerant circulation process is complicated, and the cost of materials and time required for completing factory inspection or self-inspection of the outdoor unit 100 ' is high.
This application is through regarding as indoor heat exchanger one in first heat exchanger 132 and the second heat exchanger 134 of off-premises station 100, another is as outdoor heat exchanger, and make first heat exchanger 132 and second heat exchanger 134 be linked together with the air inlet and the gas vent of compressor 110 respectively, make off-premises station 100 need not be linked together with indoor set 200, utilize off-premises station 100 self can realize the circulation of refrigerant, and then accomplish outgoing detection or self-checking, greatly reduced detection cost and cost of maintenance, and improved production efficiency, make and utilize less cost can learn outgoing detection and self-checking result of off-premises station 100, be suitable for popularization and application.
Example two
As shown in fig. 3 to 6, in an embodiment of the present invention, the operation control device 300 includes a memory 310 and a processor 320, wherein the four-way valve 120 of the outdoor unit 100 includes a first four-way valve 120 and a second four-way valve 120, the detection instruction received by the operation control device 300 is a refrigeration detection instruction, and the processor 320 executes a computer program to implement the steps of controlling the four-way valve 120 to change direction, so that one of the first heat exchanger 132 and the second heat exchanger 134 communicates with the discharge port of the compressor 110, and the other communicates with the intake port of the compressor 110, including: reversing the first four-way valve 120 causes the first heat exchanger 132 to communicate with the discharge of the compressor 110, and reversing the second four-way valve 120 causes the second heat exchanger 134 to communicate with the intake of the compressor 110.
In this embodiment, a specific operation control scheme of the outdoor unit 100 is provided. As shown in fig. 4, the four-way valve 120 of the outdoor unit 100 includes a first four-way valve 120 and a second four-way valve 120, and the first heat exchanger 132 can be communicated with the compressor 110 by switching the first four-way valve 120, and the second heat exchanger 134 can be communicated with the compressor 110 by switching the second four-way valve 120. When the detection instruction is a refrigeration detection instruction, specifically, as shown in fig. 5, the first four-way valve 120 is controlled to be switched to communicate the first heat exchanger 132 with the exhaust port of the compressor 110, and the second four-way valve 120 is controlled to be switched to communicate the second heat exchanger 134 with the air inlet of the compressor 110, because the first heat exchanger 132 is communicated with the second heat exchanger 134, at this time, the refrigerant flows through the first heat exchanger 132 from the exhaust port of the compressor 110 to dissipate heat, and after flowing through the second heat exchanger 134 from the first heat exchanger 132 to absorb heat, returns to the compressor 110 from the air inlet of the compressor 110, so that the outdoor unit 100 itself forms a refrigerant circulation loop without being communicated with the indoor unit. At this time, the first heat exchanger 132 is used as an outdoor heat exchanger, and the second heat exchanger 134 is used as an indoor heat exchanger, so that a refrigeration cycle during factory inspection or self-test of the outdoor unit 100 is realized, and further inspection based on the outdoor unit 100 is facilitated under the refrigeration cycle.
In an embodiment of the present invention, further, the detection command is a heating detection command, and the processor 320 executes a computer program to implement the step of controlling the four-way valve 120 to switch to communicate one of the first heat exchanger 132 and the second heat exchanger 134 with the exhaust port of the compressor 110 and communicate the other with the intake port of the compressor 110, including: reversing the second four-way valve 120 causes the second heat exchanger 134 to communicate with the discharge of the compressor 110, and reversing the first four-way valve 120 causes the first heat exchanger 132 to communicate with the intake of the compressor 110.
In this embodiment, another specific operation control scheme of the outdoor unit is provided. As shown in fig. 6, when the detection command is a heating detection command, the second four-way valve 120 is controlled to be switched to communicate the second heat exchanger 134 with the exhaust port of the compressor 110, the first four-way valve 120 is switched to communicate the first heat exchanger 132 with the air inlet of the compressor 110, and because the first heat exchanger 132 is communicated with the second heat exchanger 134, at this time, the refrigerant is radiated from the exhaust port of the compressor 110 through the second heat exchanger 134, and after flowing through the first heat exchanger 132 by the second heat exchanger 134 to absorb heat, the refrigerant returns to the compressor 110 from the air inlet of the compressor 110, so that the outdoor unit 100 itself forms a refrigerant circulation loop without being communicated with the indoor unit 200. At this time, the first heat exchanger 132 is used as an outdoor heat exchanger, and the second heat exchanger 134 is used as an indoor heat exchanger, so that a heating cycle during factory inspection or self-test of the outdoor unit 100 is realized, and further inspection based on the heating cycle of the outdoor unit 100 is facilitated.
Further, the first heat exchanger 132 may be an indoor heat exchanger, and the second heat exchanger 134 may be an outdoor heat exchanger, so that a heating cycle and a cooling cycle can be similarly realized when the outdoor unit 100 itself is used to perform factory inspection or self-inspection. Specifically, based on the detection instruction being a refrigeration detection instruction, the second four-way valve 120 is controlled to be switched to communicate the second heat exchanger 134 with the exhaust port of the compressor 110, and the first four-way valve 120 is switched to communicate the first heat exchanger 132 with the intake port of the compressor 110; based on the detection command being a heating detection command, the first four-way valve 120 is controlled to be reversed to communicate the first heat exchanger 132 with the exhaust port of the compressor 110, and the second four-way valve 120 is reversed to communicate the second heat exchanger 134 with the intake port of the compressor 110.
Further, the four-way valve 120 is controlled to be switched to communicate the first heat exchanger 132 or the second four-way valve 120 with the exhaust port of the compressor 110 according to different detection instructions, and meanwhile, the second heat exchanger 134 or the first heat exchanger 132 is communicated with the air inlet of the compressor 110, so that the first heat exchanger 132 and the second heat exchanger 134 are communicated with different positions of the compressor 110 under different detection instructions, thereby being beneficial to fully and finely detecting the outdoor unit 100 and improving the accuracy and rationality of detection results.
EXAMPLE III
As shown in fig. 3 to 6, in an embodiment of the present invention, the operation control device 300 includes a memory 310 and a processor 320, the four-way valve 120 of the outdoor unit 100 includes a first four-way valve 120 and a second four-way valve 120, and the detection instruction received by the operation control device 300 includes a cooling detection instruction and a heating detection instruction, wherein the processor 320 is further configured to execute a computer program to implement: one of the first heat exchanger 132 and the second heat exchanger 134 is communicated with the discharge port of the compressor 110 and the other is communicated with the intake port of the compressor 110 based on the control of the switching of the four-way valve 120, and then the operation parameter and/or the environmental parameter of the outdoor unit 100 are detected and fed back.
In this embodiment, after one of the first heat exchanger 132 and the second heat exchanger 134 is communicated with the exhaust port of the compressor 110 and the other is communicated with the air inlet of the compressor 110 based on the reversing of the four-way valve 120, the processor 320 is further configured to execute a computer program to detect and feed back the operation parameter and/or the environmental parameter of the outdoor unit 100, so that when the outdoor unit 100 itself forms a refrigerant circulation loop, the operation parameter, or the environmental parameter, or the operation parameter and the environmental parameter of the outdoor unit 100 is detected and fed back, thereby completing the factory detection or other item detection during self-inspection of the outdoor unit 100, which is beneficial to determining whether the outdoor unit 100 meets the factory requirements or the use requirements.
It is understood that, in the case where the outdoor unit 100 itself forms a refrigerant circulation circuit, the outdoor unit 100 may be subjected to a failure detection or a regular detection.
Specifically, the operation parameters of the outdoor unit 100 include an operation current, an operation voltage, a refrigerant temperature and a refrigerant pressure at different positions of the pipeline, a temperature of the first heat exchanger 132, and a temperature of the second heat exchanger 134, and may also be other operation parameters meeting the requirement, and the environmental parameters include an ambient temperature and an ambient humidity, and may also be other parameters meeting the requirement.
Example four
According to a second aspect of the present invention, there is provided an operation control method, and fig. 7 is a flowchart illustrating the operation control method according to the first embodiment of the present invention, the operation control method being used in an outdoor unit, the outdoor unit including: the system comprises a compressor, a first heat exchanger, a second heat exchanger and a four-way valve, wherein the first heat exchanger is communicated with the second heat exchanger, and the operation control method comprises the following steps:
step S602, receiving a detection instruction;
and step S604, controlling the four-way valve to change direction, so that one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one of the first heat exchanger and the second heat exchanger is communicated with an air inlet of the compressor.
In detail, the outdoor unit comprises a compressor, a first heat exchanger, a second heat exchanger and a four-way valve, wherein the first heat exchanger is communicated with the second heat exchanger. The outdoor unit can form a refrigerant circulation loop by itself, and then the outdoor unit can be independently utilized to complete factory detection or self-inspection of the outdoor unit, thereby avoiding the problem that the outdoor unit can be subjected to factory detection or self-inspection to increase detection cost by connecting the outdoor unit with the indoor unit to form the refrigerant circulation loop to carry out factory detection or self-inspection on the outdoor unit only to form the refrigerant circulation loop by related technologies, The problem of production efficiency is reduced to, carry out operations such as welded tube, takeover, wiring on the off-premises station and make off-premises station and indoor set be linked together when having influenced the quality of off-premises station, increased the cost that the off-premises station was reprocessed once more, consequently, this application is through controlling the switching-over of cross valve when receiving the detection instruction, makes off-premises station self form refrigerant circulation return circuit and dispatches from the factory and detect or the self-checking, convenient operation, greatly reduced detection cost and cost of maintenance, and improved production efficiency, be suitable for popularization and application.
Specifically, the detection of the outdoor unit is generally based on the detection of the outdoor unit under the heating cycle or the refrigeration cycle, one of a first heat exchanger and a second heat exchanger of the outdoor unit is used as an indoor heat exchanger, the other heat exchanger is used as an outdoor heat exchanger, the first heat exchanger and the second heat exchanger are respectively communicated with an air inlet and an air outlet of a compressor, so that the outdoor unit does not need to be communicated with an indoor unit, the circulation of a refrigerant can be realized by the outdoor unit, the factory detection or self-inspection is further completed, the detection cost and the maintenance cost are greatly reduced, the production efficiency is improved, the factory detection and the self-inspection results of the outdoor unit can be obtained by using small cost, and the outdoor unit.
EXAMPLE five
Fig. 8 is a flowchart illustrating an operation control method according to a second embodiment of the present invention, in which the four-way valve includes a first four-way valve and a second four-way valve, the detection command is a cooling detection command, and the operation control method includes:
step S702, receiving a refrigeration detection instruction;
step S704, the first four-way valve is controlled to be reversed to enable the first heat exchanger to be communicated with an exhaust port of the compressor, and the second four-way valve is reversed to enable the second heat exchanger to be communicated with an air inlet of the compressor.
In this embodiment, the four-way valves of the outdoor unit include a first four-way valve and a second four-way valve, and reversing the first four-way valve can communicate the first heat exchanger with the compressor, and reversing the second four-way valve can communicate the second heat exchanger with the compressor. The operation control method of the outdoor unit comprises the following steps: the detection instruction is a refrigeration detection instruction, the refrigeration detection instruction is received, the first four-way valve is controlled to be reversed to enable the first heat exchanger to be communicated with the exhaust port of the compressor, the second four-way valve is reversed to enable the second heat exchanger to be communicated with the air inlet of the compressor, at the moment, the refrigerant flows through the first heat exchanger from the exhaust port of the compressor to dissipate heat, flows through the second heat exchanger from the first heat exchanger to absorb heat, and then returns to the compressor from the air inlet of the compressor, and therefore the outdoor unit can form a refrigerant circulation loop under the condition that the outdoor unit is not communicated with the indoor unit. At the moment, the first heat exchanger is used as an outdoor heat exchanger, the second heat exchanger is used as an indoor heat exchanger, so that the refrigerating cycle of the outdoor unit during factory inspection or self-inspection is realized, and the outdoor unit-based further detection under the refrigerating cycle is facilitated.
EXAMPLE six
Fig. 9 is a flowchart illustrating an operation control method according to a third embodiment of the present invention, in which the four-way valve includes a first four-way valve and a second four-way valve, the detection instruction is a heating detection instruction, and the operation control method includes:
step S802, receiving a heating detection instruction;
and step S804, controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with an exhaust port of the compressor, and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with an air inlet of the compressor.
In this embodiment, when the detection instruction is a heating detection instruction, the heating detection instruction is received, the second four-way valve is controlled to be reversed to enable the second heat exchanger to be communicated with the exhaust port of the compressor, the first four-way valve is reversed to enable the first heat exchanger to be communicated with the air inlet of the compressor, and because the first heat exchanger is communicated with the second heat exchanger, at this time, the refrigerant is radiated by the second heat exchanger through the exhaust port of the compressor, and after flowing through the first heat exchanger by the second heat exchanger to absorb heat, the refrigerant returns to the compressor through the air inlet of the compressor, so that the outdoor unit forms a refrigerant circulation loop under the condition that the outdoor unit is not. At the moment, the first heat exchanger is used as an outdoor heat exchanger, the second heat exchanger is used as an indoor heat exchanger, and therefore heating circulation during factory inspection or self-inspection of the outdoor unit is achieved, and further detection based on the outdoor unit under the heating circulation is facilitated.
Further, the first heat exchanger can be used as an indoor heat exchanger, the second heat exchanger can be used as an outdoor heat exchanger, and the heating cycle and the refrigerating cycle can be completed by the outdoor unit when factory inspection or self-inspection is finished. Specifically, based on the detection instruction being a refrigeration detection instruction, the second four-way valve is controlled to be reversed to enable the second heat exchanger to be communicated with the exhaust port of the compressor, and the first four-way valve is reversed to enable the first heat exchanger to be communicated with the air inlet of the compressor; and based on the detection instruction as a heating detection instruction, controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with an exhaust port of the compressor, and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with an air inlet of the compressor.
Furthermore, the four-way valve is controlled to be reversed respectively according to different detection instructions to enable the first heat exchanger or the second four-way valve to be communicated with the exhaust port of the compressor, meanwhile, the second heat exchanger or the first heat exchanger is communicated with the air inlet of the compressor, so that the first heat exchanger and the second heat exchanger are communicated with different positions of the compressor under different detection instructions, the outdoor unit can be fully and carefully detected, and the accuracy and the reasonability of detection results can be improved.
EXAMPLE seven
Fig. 10 is a flowchart showing an operation control method according to a fourth embodiment of the present invention, wherein the operation control method includes:
step S902, receiving a detection instruction;
step S904, controlling the four-way valve to change direction, so that one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one is communicated with an air inlet of the compressor;
step S906, detecting and feeding back an operation parameter and/or an environmental parameter of the outdoor unit.
In this embodiment, after the step of controlling the four-way valve to change the direction, so that one of the first heat exchanger and the second heat exchanger is communicated with the exhaust port of the compressor, and the other is communicated with the air inlet of the compressor, that is, under the condition that the outdoor unit forms a refrigerant circulation loop, the outdoor unit is detected and fed back with the operation parameter, or the environmental parameter, or the operation parameter and the environmental parameter of the outdoor unit, so as to complete factory detection or other item detection during self-inspection of the outdoor unit, and thus, the outdoor unit can be favorably judged whether to meet factory requirements or use requirements. It is understood that, in the case where the outdoor unit itself forms a refrigerant circulation circuit, the outdoor unit may be subjected to a fault detection or a regular detection.
Specifically, the operation parameters of the outdoor unit include an operation current, an operation voltage, a refrigerant temperature and a refrigerant pressure at different positions of the pipeline, a temperature of the first heat exchanger, a temperature of the second heat exchanger, and may also be other operation parameters meeting the requirements, and the environmental parameters include an environmental temperature and an environmental humidity, and may also be other parameters meeting the requirements.
Example eight
As shown in fig. 3 to 6 and 11, according to a third aspect of the present invention, there is provided an air conditioning system 400 including: an outdoor unit 100, the outdoor unit 100 including a compressor 110, a first heat exchanger 132, a second heat exchanger 134, and a four-way valve 120, the first heat exchanger 132 and the second heat exchanger 134 being communicated, the outdoor unit 100 further including a plurality of first valves 140; a plurality of indoor units 200, the outdoor unit 100 and the indoor units 200 being communicated with each other through a plurality of first valves 140; and the operation control device 300 of any of the above embodiments, the operation control device 300 being configured to control the four-way valve 120 to commutate. Since the air conditioning system 400 includes the operation control device 300 according to any of the above embodiments, all the advantages of the operation control device 300 are provided, and are not described herein again.
Further, the outdoor unit 100 and the indoor units 200 are communicated with each other through the first valves 140, so that after the outdoor unit 100 passes the detection in the case of using the refrigerant circulation circuit formed by itself, one or more operation modes of heating, cooling and standby can be performed on the indoor units 200 by communicating with the indoor units 200 through the first valves 140.
Example nine
As shown in fig. 3 to 6 and 11, in an embodiment of the present invention, an air conditioning system 400 includes: outdoor unit 100 and a plurality of indoor units 200, outdoor unit 100 includes compressor 110, first heat exchanger 132, second heat exchanger 134, four-way valve 120, a plurality of first valves 140, wherein outdoor unit 100 further includes: an oil separator 150, wherein the exhaust port of the compressor 110 is communicated with the four-way valve 120 through the oil separator 150; a gas-liquid separator 160, wherein the air inlet of the compressor 110 is communicated with the four-way valve 120 through the gas-liquid separator 160; a throttling part 170 connected with the first heat exchanger 132 and/or the second heat exchanger 134; the second valve 180, a portion of the first valve 140 is in communication with the compressor 110 through the second valve 180.
In this embodiment, the outdoor unit 100 further includes an oil separator 150, and the exhaust port of the compressor 110 is communicated with the four-way valve 120 through the oil separator 150, so that the lubricating oil in the high-pressure steam exhausted from the exhaust port of the compressor 110 is separated by the oil separator 150, thereby ensuring safe and efficient operation of the air conditioning system 400 and improving reliability of the product.
The outdoor unit 100 further includes a gas-liquid separator 160, and an air inlet of the compressor 110 is communicated with the four-way valve 120 through the gas-liquid separator 160, so that a gas-liquid mixture passing through the gas-liquid separator 160 is separated by the gas-liquid separator 160, the separated gas flows into the compressor 110 through the air inlet of the compressor 110, and the separated liquid is stored, thereby preventing the liquid from entering the compressor 110 along with the gas and reducing the service life of the compressor 110, and effectively ensuring the reliability of the compressor 110.
The outdoor unit 100 further includes a throttling part 170, and the throttling part 170 is connected to the first heat exchanger 132 and/or the second heat exchanger 134, so that the throttling part 170 is used to adjust the flow rate of the refrigerant flowing through the first heat exchanger 132, the second heat exchanger 134, or the first heat exchanger 132 and the second heat exchanger 134, thereby facilitating throttling and pressure reduction and controlling superheat degree, ensuring good heating or cooling effect, and improving reliability of products.
It is understood that the throttling part 170 may include a first throttling valve 172 and a second throttling valve 174, the first throttling valve 172 is communicated with the first heat exchanger 132 for regulating the flow rate of the refrigerant flowing through the first heat exchanger 132, and the second throttling valve 174 is communicated with the second heat exchanger 134 for regulating the flow rate of the refrigerant flowing through the second heat exchanger 134. Specifically, the first throttle 172 and the second throttle 174 are electronic expansion valves, and it is understood that the first throttle 172 and the second throttle 174 may have other configurations that meet the requirements.
The outdoor unit 100 further includes a second valve 180, and when the outdoor unit 100 is communicated with the indoor units 200 through the plurality of first valves 140 and at least one of the indoor units 200 requires heating, a part of the first valves 140 are communicated with the compressor 110 through the second valve 180, so that the discharge port of the compressor 110 is communicated with the indoor unit 200 requiring heating to realize refrigerant circulation.
Further, the number of the compressors 110 is at least one, and different numbers of the compressors 110 can meet different numbers of the indoor units 200 and different requirements of heating or cooling capacities, so that the application range is wide. Specifically, the compressor 110 includes a first compressor 112 and a second compressor 114, a discharge port of the first compressor 112 is in communication with a discharge port of the second compressor 114, and an intake port of the first compressor 112 is in communication with an intake port of the second compressor 114.
Further, the number of the first heat exchangers 132 is at least one, the number of the second heat exchangers 134 is at least one, and different numbers of the first heat exchangers 132 and the second heat exchangers 134 can meet different requirements of the indoor units 200 on different numbers and heating or cooling capacities, so that the application range is wide. Specifically, when the outdoor unit 100 itself forms a refrigerant circulation loop for factory inspection or self-inspection, the plurality of first heat exchangers 132 may be used together as indoor heat exchangers or outdoor heat exchangers, and correspondingly, the plurality of second heat exchangers 134 may be used together as outdoor heat exchangers or indoor heat exchangers.
Further, the second valve 180 is the four-way valve 120, and the four-way valve 120 is controlled to be reversed to communicate different second valves with the exhaust port of the compressor 110, so that the exhaust port of the compressor 110 is communicated with different indoor units 200 to realize heating of different indoor units 200, and the indoor unit heating system is simple in structure and beneficial to product simplification.
Example ten
In an exemplary embodiment, the air conditioning system 400 may include only the outdoor unit 100 and the operation control device 300, as shown in fig. 4, the outdoor unit 100 includes a first compressor 112, a second compressor 114, a first heat exchanger 132, a second heat exchanger 134, a first four-way valve 122, a second four-way valve 124, a first valve a142, a first valve b144, a first valve c146, a first valve d148, an oil separator 150, a gas-liquid separator 160, a first throttle 172, and a second throttle 174, wherein the first valve a142, the first valve b144, the first valve c146, and the first valve d148 are used for communicating the indoor unit 200 with the outdoor unit 100.
When the refrigeration cycle of the outdoor unit 100 needs to be checked, as shown in fig. 5, the first valve a142, the first valve b144, the first valve c146, and the first valve d148 are all in the factory default closed state, the compressor 110 is started, the refrigerant is discharged from the discharge port of the compressor 110, passes through the oil separator 150, the first four-way valve 122, the first heat exchanger 132, the first throttle 172, the second throttle 174, the second heat exchanger 134, the second four-way valve 124, and the gas-liquid separator 160 in sequence, and is finally sucked from the air inlet of the compressor 110, thereby completing the refrigeration cycle.
When the heating cycle of the outdoor unit 100 needs to be detected, as shown in fig. 6, the first valve a142, the first valve b144, the first valve c146, and the first valve d148 are all in the factory default closed state, the compressor 110 is started, the refrigerant is discharged from the discharge port of the compressor 110, passes through the oil separator 150, the second four-way valve 124, the second heat exchanger 134, the second throttle 174, the first throttle 172, the first heat exchanger 132, the first four-way valve 122, and the gas-liquid separator 160 in sequence, and is finally sucked from the air inlet of the compressor 110, thereby completing the heating cycle.
When the outdoor unit 100 performs the heating cycle detection and the refrigeration cycle detection, it is not communicated with the indoor unit 200, so as to reduce the detection cost and the maintenance cost, improve the production efficiency, and be suitable for popularization and application.
EXAMPLE eleven
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when being executed by a processor, implements the steps of the operation control method according to any one of the above embodiments, so as to achieve all the technical effects of the operation control method, and therefore, the description thereof is omitted here.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. An operation control device for an outdoor unit, the outdoor unit comprising: compressor, first heat exchanger, second heat exchanger and cross valve, first heat exchanger with the second heat exchanger is linked together, its characterized in that, the operation control device includes:
a memory configured to store a computer program;
a processor configured to execute the computer program to implement:
receiving a detection instruction;
and controlling the four-way valve to change the direction, so that one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one of the first heat exchanger and the second heat exchanger is communicated with an air inlet of the compressor.
2. The operation control device according to claim 1, wherein the four-way valve includes a first four-way valve and a second four-way valve, the detection instruction is a refrigeration detection instruction, and the processor executes the computer program to perform the step of controlling the four-way valve to be reversed such that one of the first heat exchanger and the second heat exchanger communicates with an exhaust port of the compressor and the other communicates with an intake port of the compressor, including:
and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with an exhaust port of the compressor, and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with an air inlet of the compressor.
3. The operation control device according to claim 2, wherein the detection command is a heating detection command, and the step of the processor executing the computer program to effect the controlling of the four-way valve switching to communicate one of the first heat exchanger and the second heat exchanger with the discharge port of the compressor and communicate the other with the intake port of the compressor comprises:
and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with the exhaust port of the compressor, and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with the air inlet of the compressor.
4. The operation control device according to any one of claims 1 to 3, characterized in that the processor is further configured to execute the computer program to realize:
and based on the control of the reversing of the four-way valve, one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one is communicated with an air inlet of the compressor, and then the running parameters and/or the environmental parameters of the outdoor unit are detected and fed back.
5. An operation control method for an outdoor unit, the outdoor unit comprising: the system comprises a compressor, a first heat exchanger, a second heat exchanger and a four-way valve, wherein the first heat exchanger is communicated with the second heat exchanger, and the operation control method comprises the following steps:
receiving a detection instruction;
and controlling the four-way valve to change the direction, so that one of the first heat exchanger and the second heat exchanger is communicated with an exhaust port of the compressor, and the other one of the first heat exchanger and the second heat exchanger is communicated with an air inlet of the compressor.
6. The operation control method according to claim 5, wherein the four-way valve includes a first four-way valve and a second four-way valve, the detection command is a refrigeration detection command, and the step of controlling the four-way valve to reverse to communicate one of the first heat exchanger and the second heat exchanger with the exhaust port of the compressor and communicate the other with the intake port of the compressor specifically includes:
and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with an exhaust port of the compressor, and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with an air inlet of the compressor.
7. The operation control method according to claim 6, wherein the detection command is a heating detection command, and the step of controlling the four-way valve to reverse to communicate one of the first heat exchanger and the second heat exchanger with an exhaust port of the compressor and communicate the other with an intake port of the compressor specifically comprises:
and controlling the second four-way valve to change direction to enable the second heat exchanger to be communicated with the exhaust port of the compressor, and controlling the first four-way valve to change direction to enable the first heat exchanger to be communicated with the air inlet of the compressor.
8. The operation control method according to any one of claims 5 to 7, further comprising, after the step of controlling the four-way valve to be switched such that one of the first heat exchanger and the second heat exchanger communicates with a discharge port of the compressor and the other communicates with an intake port of the compressor:
and detecting and feeding back the operation parameters and/or the environmental parameters of the outdoor unit.
9. An air conditioning system, comprising:
the outdoor unit comprises a compressor, a first heat exchanger, a second heat exchanger and a four-way valve, wherein the first heat exchanger is communicated with the second heat exchanger, and the outdoor unit further comprises a plurality of first valves;
the outdoor unit is communicated with the indoor units through the first valves; and
the operation control device according to any one of claims 1 to 4, configured to control the four-way valve to commutate.
10. The air conditioning system of claim 9, wherein the outdoor unit further comprises:
the exhaust port of the compressor is communicated with the four-way valve through the oil separator;
the air inlet of the compressor is communicated with the four-way valve through the air-liquid separator;
the throttling part is connected with the first heat exchanger and/or the second heat exchanger;
a second valve through which a portion of the first valve communicates with the compressor.
11. The air conditioning system of claim 10,
the number of the compressors is at least one;
the number of the first heat exchangers is at least one;
the number of the second heat exchangers is at least one;
the second valve is a four-way valve.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the operation control method according to any one of claims 5 to 8.
CN201911144160.2A 2019-11-20 2019-11-20 Operation control device and method, air conditioning system, and computer-readable storage medium Pending CN110836556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911144160.2A CN110836556A (en) 2019-11-20 2019-11-20 Operation control device and method, air conditioning system, and computer-readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911144160.2A CN110836556A (en) 2019-11-20 2019-11-20 Operation control device and method, air conditioning system, and computer-readable storage medium

Publications (1)

Publication Number Publication Date
CN110836556A true CN110836556A (en) 2020-02-25

Family

ID=69576946

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911144160.2A Pending CN110836556A (en) 2019-11-20 2019-11-20 Operation control device and method, air conditioning system, and computer-readable storage medium

Country Status (1)

Country Link
CN (1) CN110836556A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1804010A2 (en) * 2005-12-29 2007-07-04 LG Electronics Inc. Air conditioner and refrigerant control method thereof
CN101013068A (en) * 2007-02-08 2007-08-08 珠海格力电器股份有限公司 Testing system of frequency changing outdoor air-conditioning
CN102384538A (en) * 2011-07-05 2012-03-21 广东美的暖通设备限公司 Three-pipe heat recovery multi-connected machine and control method thereof
CN203376170U (en) * 2013-06-08 2014-01-01 广东美的暖通设备有限公司 Device for detecting air conditioner without inner machine
CN108168138A (en) * 2018-01-02 2018-06-15 珠海格力电器股份有限公司 Outdoor unit, air-conditioning system and control method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1804010A2 (en) * 2005-12-29 2007-07-04 LG Electronics Inc. Air conditioner and refrigerant control method thereof
CN101013068A (en) * 2007-02-08 2007-08-08 珠海格力电器股份有限公司 Testing system of frequency changing outdoor air-conditioning
CN102384538A (en) * 2011-07-05 2012-03-21 广东美的暖通设备限公司 Three-pipe heat recovery multi-connected machine and control method thereof
CN203376170U (en) * 2013-06-08 2014-01-01 广东美的暖通设备有限公司 Device for detecting air conditioner without inner machine
CN108168138A (en) * 2018-01-02 2018-06-15 珠海格力电器股份有限公司 Outdoor unit, air-conditioning system and control method

Similar Documents

Publication Publication Date Title
US20180340700A1 (en) Variable refrigerant flow system
JP2005077084A (en) Air-conditioner, and control method therefor
JP6628911B1 (en) Refrigeration cycle device
CN111442552A (en) Cascade type refrigerant circulating system, air conditioning equipment and control method of cascade type refrigerant circulating system
CN115523604A (en) Multi-split-unit fault detection method and device and multi-split-unit
US11274851B2 (en) Air conditioning apparatus
US11578898B2 (en) Air conditioning apparatus
CN110542196B (en) Detection assembly for air conditioner, control method, control device and air conditioner
KR100641774B1 (en) Air conditioner
JP2022535197A (en) Air conditioner and its control method
EP3872408B1 (en) Water filling method for an air conditioner
CN110836556A (en) Operation control device and method, air conditioning system, and computer-readable storage medium
CN111623548A (en) Air conditioning system and control method
CN114777218B (en) Multi-split system and control method
CN106839211B (en) Multi-split air conditioner and control method thereof in heating mode operation
CN115427744B (en) Air conditioner
EP2126476B1 (en) Air conditioning system and control method for the same
EP2137467A1 (en) Multi-unit air conditioning system and controlling method for the same
CN107940796B (en) Multi-split air conditioner system and starting control method of outdoor unit thereof
CN208365859U (en) A kind of cooling by wind system
KR101160351B1 (en) Multi air conditioner and control method thereof
CN212690915U (en) Four-way valve, heat exchange system and air conditioning unit
US11397015B2 (en) Air conditioning apparatus
CN218763900U (en) Multi-split air conditioner
CN220771323U (en) Air conditioner control system, air conditioner, multi-split control system and multi-split

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200225

RJ01 Rejection of invention patent application after publication