CN109612025B - Air conditioning device and control method thereof - Google Patents
Air conditioning device and control method thereof Download PDFInfo
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- CN109612025B CN109612025B CN201811409718.0A CN201811409718A CN109612025B CN 109612025 B CN109612025 B CN 109612025B CN 201811409718 A CN201811409718 A CN 201811409718A CN 109612025 B CN109612025 B CN 109612025B
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- 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
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- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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- 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
- F24F11/65—Electronic processing for selecting an operating mode
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- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner and a control method thereof, wherein the air conditioner is provided with at least one outdoor unit, a plurality of indoor units, a fault detection unit and a central control unit and is used for controlling the operation of the indoor units and the outdoor units. A main pipeline and branch pipelines are arranged between the outdoor unit and the indoor unit, wherein the branch pipelines are connected in parallel. Each indoor unit is connected to the main pipeline in parallel through each branch pipeline, each outdoor unit is connected to the main pipeline in parallel through each branch pipeline, each branch pipeline is provided with a branch pipeline valve, and the main pipeline is provided with a main pipeline valve. The air conditioner is detected by the fault detection unit, and the indoor unit with the fault is shielded to ensure the operation of other indoor units without the fault.
Description
Technical Field
The present invention relates to the field of air conditioners, and more particularly, to a fault handling method for an air conditioner and an air conditioning system.
Background
At present, the multi-split air conditioner is widely applied in the market, a multi-split system consists of one outdoor unit or a plurality of outdoor units and a plurality of indoor units, and the hidden trouble of failure outbreak is greatly increased because the multi-unit system is formed. If one subunit exists in a multi-split system in the market at present, if any indoor unit or outdoor unit fails, the whole refrigeration cycle system is stopped and cannot normally operate.
Disclosure of Invention
The invention provides an air conditioner and a control method thereof, which solve the problems, the scheme detects the air conditioner through a fault detection unit, shields the indoor unit with a fault to ensure the operation of other indoor units without faults,
the technical scheme of the invention is as follows: a control method of an air conditioner including a plurality of outdoor units, a plurality of indoor units, and a central control unit including a fault detection unit, the outdoor units and the indoor units being communicated through pipes, the central control unit being configured to control operations of the indoor units and the outdoor units, the method comprising:
a, a fault detection unit detects an air conditioner in real time;
b, when a fault occurs, the fault detection unit gives an alarm, and transmits the detected fault information to the central control unit to judge whether the fault is a maskable operation fault, if so, the step C is carried out; if not, entering a unit continuous fault mode, and emergently stopping the unit until the fault is solved and then recovering the operation;
c, the central control unit prompts whether to enter a standby operation mode or not, and if so, the central control unit enters a step D; if not, entering a unit continuous fault mode, and emergently stopping the unit until the fault is solved and then recovering the operation;
d, entering a standby operation mode.
Furthermore, the operation fault can be shielded, namely if a certain indoor unit or outdoor unit has a fault, a valve for communicating the indoor unit or outdoor unit with a pipeline is closed, and the fault does not affect the operation of the whole system.
Further, the standby operation mode specifically includes: and shielding the indoor unit or the outdoor unit related to the fault from the operating system of the air conditioning device, debugging the operating system again, and operating the indoor unit or the outdoor unit again after the address allocation of the indoor unit and the outdoor unit is completed.
Furthermore, a main pipeline and branch pipelines are arranged between the outdoor units and the indoor units, the indoor units are connected to the main pipeline through respective branch pipelines, the branch pipelines are connected in parallel, the outdoor units are connected to the main pipeline, the outdoor units are connected in parallel, valves are arranged at the inlet and the outlet of each indoor unit and each outdoor unit, and in a normal state, one outdoor unit is only communicated with one indoor unit or one indoor unit.
Further, the specific way of shielding the indoor unit or the outdoor unit related to the failure from the operating system of the air conditioning device is as follows: the corresponding valve is disconnected.
Further, when the fault is that one indoor unit has a fault, a valve of the fault indoor unit is disconnected, so that the fault indoor unit is shielded from the air conditioning device; when the failure is that some outdoor unit fails, the corresponding valve of the failed outdoor unit is disconnected, so that the indoor unit originally communicated with the failed outdoor unit is communicated with other non-failed outdoor units, and the operation of the air conditioning system is ensured.
Furthermore, after the fault unit is shielded, when the running system is debugged again, the system matches the indoor unit and the outdoor unit again, and judges whether the refrigerating capacity which can be provided by the outdoor unit is matched with the refrigerating capacity required by the indoor unit, if the refrigerating capacity difference is more than 20%, the external centralized control display prompts a user: continued use is not recommended in view of effects and energy saving.
Further, the failure detection unit detects information on the state of the equipment or refrigerant of the indoor unit or the outdoor unit of the air conditioner.
In another aspect, the present application further provides an air conditioner, an air conditioner using the air conditioner control method of any one of claims 1 to 6, wherein the central control unit is communicatively coupled to the indoor unit and the outdoor unit, and the fault detection unit is communicatively coupled to the central control unit.
Further, the fault detection unit includes at least one sensor for detecting a state of the outdoor unit or the indoor unit.
Further, a wireless communication section for transmitting the state detected by the sensor to the failure detection unit is also included.
Further, the outdoor unit comprises a manual control unit for manually controlling the indoor unit and the outdoor unit.
Drawings
Fig. 1 is a schematic view of the connection between an indoor unit and an outdoor unit of an air conditioner.
Fig. 2 is a flowchart of a control method of the air conditioner.
In the figure: 1, 2, 3, indoor unit; 4, 5, an outdoor unit; 6. a central control unit; 7, 8, an indoor unit branch pipeline valve; 9, 10, indoor unit branch pipeline valves; 11, 12, a main pipeline; 13, 14, indoor unit branch pipelines; 15, 16 outdoor unit branch pipe
Detailed Description
The following description is of preferred embodiments of the invention,
as shown in fig. 1, the air conditioner includes a plurality of outdoor units 4, 5, a plurality of indoor units 1, 2, 3, a central control unit 6, and the central control unit 6 for controlling operations of the indoor units 1, 2, 3 and the outdoor units 4, 5, and the central control unit 6 includes a failure detection unit. An indoor unit formed by connecting a plurality of indoor units 1, 2 and 3 in parallel and an outdoor unit formed by connecting a plurality of outdoor units 4 and 5 in parallel are connected with each other to form a fluorine system.
The main pipeline 11, 12 comprises an inlet pipeline 11 and an outlet pipeline 12, and a main pipeline valve is arranged on each of the two pipelines 11, 12. Each indoor unit branch pipe 13, 14 comprises an inlet pipe 13 and an outlet pipe 14, and an indoor unit branch pipe valve 7, 8 is arranged on the inlet pipe 13 and the outlet pipe 14. Each outdoor unit branch pipe 15, 16 includes an inlet pipe 15 and an outlet pipe 16, and an outdoor unit branch pipe valve 9, 10 is provided thereon.
The main pipeline valve and the branch pipeline valves 7, 8, 9 and 10 of the indoor unit and the outdoor unit can be flow regulating valves which have the functions of connection, disconnection and flow regulation.
The outdoor units 4 and 5 supply refrigerant liquid to the indoor units 1, 2 and 3 through pipes 11, 12, 13, 14, 15 and 16, and the flow rate of the refrigerant is controlled to meet the indoor cooling/heating load demand. The flow of the refrigerant after the unit is connected into the system is controlled by valves 7, 8, 9 and 10. When the unit valves 7, 8, 9, 10 are closed, the system refrigerant does not flow through the unit, which corresponds to shielding the unit from the refrigerant system. Thus, if a single unit fails, the valves 7, 8, 9 and 10 of the unit are closed, and the failure does not affect the operation of the whole system.
The central processing unit 6 is in communication with each of the indoor units 1, 2, 3 and the outdoor units 4, 5, and the central control unit 6 is in communication with a failure detection unit comprising at least one sensor for detecting the state of the outdoor unit 4, 5 or the indoor unit 1, 2, 3.
The internal default of the software of the central control unit 6 is to divide all faults of the unit into two types, one type is maskable operation fault, and the other type is non-maskable operation fault.
The failure of the individual indoor units 1, 2, 3 or the outdoor units 4, 5 is a maskable failure, and if the failure such as system pressure is the non-maskable failure.
In addition, a wireless communication section is included for transmitting the state detected by the sensor to the central control unit 6.
In addition, a manual control unit is included for manually controlling the indoor units 1, 2, 3 and the outdoor units 4, 5.
As shown in fig. 2, a flow chart of a control method of an air conditioner is as follows: the method comprises the following steps:
a, a fault detection unit detects an air conditioner in real time;
when a fault occurs, the fault detection unit gives an alarm, and transmits the detected fault information to the central control unit 6 to judge whether the fault is a maskable operation fault, if so, the step C is carried out; if not, entering a unit continuous fault mode, and not continuing to operate until the fault is solved and then recovering to operate;
c, the central control unit 6 prompts whether to enter a standby running mode or not, and if so, the step D is carried out; if not, entering a unit continuous fault mode, and not continuing to operate until the fault is solved and then recovering to operate;
d, entering a standby operation mode.
The standby operation mode specifically comprises the following steps: and shielding the indoor units 1, 2 and 3 or the outdoor units 4 and 5 related to the faults from an operating system of the air conditioning device, and re-debugging the operating system and re-operating the operating system after completing address selection.
The specific way to shield the indoor units 1, 2, 3 or the outdoor units 4, 5 involved in the above-mentioned failure from the operating system of the air conditioning apparatus is: the respective valve 7, 8, 9, 10 is opened.
When the fault is the fault of the indoor units 1, 2 and 3, the valves 7 and 8 of the fault indoor units 1, 2 and 3 are disconnected, so that the fault indoor units are shielded from the air conditioning device; when the failure is the failure of the outdoor units 4 and 5, the valves 9 and 10 corresponding to the failed outdoor units 4 and 5 are disconnected, so that the indoor units 1, 2 and 3 originally communicated with the failed outdoor units 4 and 5 are communicated with other non-failed outdoor units 4 and 5, and the operation of an air conditioning system is ensured.
After the trouble unit shields out, when the operation system debugs again, the system matches indoor set 1, 2, 3, off-premises station 4, 5 again, judges that the refrigerating output that off-premises station 4, 5 can provide matches with indoor set 1, 2, 3 required refrigerating output, if the refrigerating output difference is greater than 20%, shows the suggestion user by outside centralized control: continued use is not recommended in view of effects and energy saving.
The failure detection unit detects information on the state of the equipment or refrigerant of the indoor units 1, 2, 3 or the outdoor units 4, 5 of the air conditioner.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention in any way, and it will be apparent to those skilled in the art that the above description of the present invention can be applied to various modifications, equivalent variations or modifications without departing from the spirit and scope of the present invention.
Claims (8)
1. A control method of an air conditioner device, the air conditioner device comprises a plurality of indoor units, a plurality of outdoor units and a central control unit, wherein the indoor unit formed by connecting the plurality of indoor units in parallel and the outdoor unit formed by connecting the plurality of outdoor units in parallel form a fluorine system through pipelines, the central control unit comprises a fault detection unit which is used for controlling the operation of the indoor units and the outdoor units, and the control method is characterized in that: the method comprises the following steps:
A. the fault detection unit detects faults of the air conditioner in real time, wherein the faults comprise maskable faults and non-maskable faults, and the maskable faults comprise faults of an individual indoor unit or an individual outdoor unit;
B. when a fault occurs, the fault detection unit gives an alarm and transmits the detected fault information to the central control unit, the central control unit judges whether the fault is a maskable fault, and if so, the step C is carried out; if not, entering a unit continuous fault mode, and carrying out emergency shutdown until the unmasked fault is solved, and then recovering operation;
C. the central control unit prompts whether to enter a standby operation mode or not, and if so, the step D is carried out; if not, entering a unit continuous fault mode, and carrying out emergency shutdown until the unmasked fault is solved, and then recovering operation;
D. entering a standby operation mode, wherein the standby operation mode specifically comprises the following steps: shielding the indoor unit or the outdoor unit related to the fault from an operation system of the air conditioning device, debugging the operation system again, and operating the indoor unit or the outdoor unit again after the address reassignment of the indoor unit or the outdoor unit is completed;
the shielding of the indoor unit or the outdoor unit involved in the failure from the operating system of the air conditioning apparatus includes: when the fault is that a certain indoor unit is in fault, the corresponding valve of the fault indoor unit is disconnected, so that the fault indoor unit is shielded from the air conditioning device; when the fault is the fault of one outdoor unit, the corresponding valve of the fault outdoor unit is disconnected, so that the indoor unit originally communicated with the fault outdoor unit is communicated with other non-fault outdoor units, and the operation of the air conditioning device is ensured;
the operation system is debugged again, and the operation of the indoor unit and the outdoor unit again after the address re-distribution is completed comprises the following steps: and judging whether the refrigerating capacity which can be provided by the outdoor unit is matched with the refrigerating capacity required by the indoor unit, and if not, prompting the user to not recommend continuous use by external centralized control display.
2. The control method according to claim 1, characterized in that: when the difference between the refrigerating capacity which can be provided by the outdoor unit and the refrigerating capacity required by the indoor unit is judged to be more than 20%, an external centralized control display prompts a user: continued use is not recommended in view of effects and energy saving.
3. The control method according to claim 1, characterized in that: a main pipeline and branch pipelines are arranged between the outdoor units and the indoor units, the indoor units are connected to the main pipeline through respective branch pipelines, the branch pipelines are connected in parallel, the outdoor units are connected to the main pipeline, the outdoor units are connected in parallel, valves are arranged at the inlet and the outlet of each indoor unit and each outdoor unit, and in a normal state, one outdoor unit is only communicated with one indoor unit.
4. A control method according to any one of claims 1-3, characterized in that: the failure detection unit detects information on the state of equipment or refrigerant of an indoor unit or an outdoor unit of the air conditioner.
5. An air conditioner using the air conditioner controlling method of any one of claims 1 to 4, wherein the central control unit is communicatively connected to the indoor unit and the outdoor unit, and the fault detecting unit is communicatively connected to the central control unit.
6. An air conditioning apparatus according to claim 5, characterized in that: the fault detection unit includes at least one sensor for detecting a state of the outdoor unit or the indoor unit.
7. An air conditioning apparatus according to claim 5, characterized in that: the air conditioner further includes a wireless communication part for transmitting the signal detected by the sensor to the central control unit.
8. An air conditioning apparatus according to any one of claims 5 to 7, characterized in that: the air conditioning device also comprises a manual control unit which is used for manually controlling the indoor unit and the outdoor unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811409718.0A CN109612025B (en) | 2018-11-23 | 2018-11-23 | Air conditioning device and control method thereof |
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| CN201811409718.0A CN109612025B (en) | 2018-11-23 | 2018-11-23 | Air conditioning device and control method thereof |
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| CN109612025B true CN109612025B (en) | 2021-07-02 |
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| CN111928418B (en) * | 2020-07-08 | 2023-02-03 | 青岛海尔空调电子有限公司 | Emergency operation method of air conditioning unit |
| JP7137087B2 (en) * | 2020-12-01 | 2022-09-14 | ダイキン工業株式会社 | Air conditioner control system, server device, and air conditioner control method |
| CN114216221B (en) * | 2021-12-20 | 2023-06-02 | 宁波奥克斯电气股份有限公司 | Detection method and device for multi-split air conditioner, multi-split air conditioner and storage medium |
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| JP2009293908A (en) * | 2008-06-09 | 2009-12-17 | Mitsubishi Heavy Ind Ltd | Air conditioning system, and failure detecting method for air conditioning system |
| CN102162665A (en) * | 2011-04-02 | 2011-08-24 | 海尔集团公司 | Internet module and air conditioner control system with same |
| CN105318497A (en) * | 2015-09-24 | 2016-02-10 | 珠海格力电器股份有限公司 | Upgrading method and device for air conditioning unit operation parameters |
| CN105650838A (en) * | 2016-02-24 | 2016-06-08 | 深圳市共济科技有限公司 | Energy-saving control system for data center |
| CN107044714B (en) * | 2017-03-30 | 2019-08-27 | 山东钢铁股份有限公司 | A kind of double water cooling equipment energy-saving control systems of computer room and method |
| CN108489021A (en) * | 2018-03-12 | 2018-09-04 | 珠海格力电器股份有限公司 | A kind of implementation method, device and the air-conditioning of air-conditioning adaptive model |
| CN108521340B (en) * | 2018-03-20 | 2019-02-12 | 特斯联（北京）科技有限公司 | A kind of Internet of Things local fault location and adaptive shielding harness and method |
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