CN113375238B - Capacity output control method for ground heating multi-split air conditioner using refrigerant - Google Patents
Capacity output control method for ground heating multi-split air conditioner using refrigerant Download PDFInfo
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- CN113375238B CN113375238B CN202110081728.1A CN202110081728A CN113375238B CN 113375238 B CN113375238 B CN 113375238B CN 202110081728 A CN202110081728 A CN 202110081728A CN 113375238 B CN113375238 B CN 113375238B
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
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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
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a capacity output control method for a floor heating multi-split air conditioner using a refrigerant, when an outdoor unit cannot meet the capacity requirement of a floor heating system, if the difference value between the indoor temperature of an air conditioning system and the set temperature is less than a, the corresponding air conditioning system is stopped, if the difference value between the set temperature of all the air conditioning systems and the indoor temperature is more than or equal to a, the started air conditioning systems are controlled to run in low wind, then whether the capacity of the outdoor unit can meet the requirement of the floor heating system is judged, if yes, the judgment is carried out again after the time T, and if not, the started air conditioning systems are sequentially closed. The invention can give full play to the capacity of the outdoor unit, solve the problem of poor full-open effect of the floor heating system and the air conditioning system in the prior industry, and simultaneously reasonably give full play to the capacity of the outdoor unit to supply heat to the air conditioning system while meeting the requirement of the floor heating system through the priority.
Description
Technical Field
The invention relates to a capacity output control method for a floor heating multi-split air conditioner using a refrigerant.
Background
The multi-split air conditioner is generally known as an outdoor unit, and is connected with an air conditioning system consisting of a plurality of indoor units, wherein the capacity of the outdoor unit is allowed to be over 130 percent of that of the indoor units, and if the total capacity of the indoor units is more than 130 percent, the capacity of the outdoor unit is insufficient, so that the cooling and heating effects are influenced.
For a floor heating multi-split unit using a refrigerant, if an indoor air conditioner and a floor heating system are simultaneously started, the problem of insufficient capacity is also solved, however, for the multi-split unit floor heating system using the refrigerant, the wood floor has a heat insulation layer, so that the heat insulation time is long after heating, when the target requirement is approached, the frequency of an outdoor unit is gradually reduced, the capacity of the outdoor unit is gradually remained, and if an indoor unit of the air conditioner has a starting requirement at the moment, and the air conditioner is not allowed to be started, all requirements of customers cannot be met.
Disclosure of Invention
In order to solve the problems, the invention provides a capacity output control method for a floor heating multi-split air conditioner using a refrigerant, which effectively solves the problems pointed out in the background art.
The technical scheme adopted by the invention is as follows:
a capacity output control method for a floor heating multi-split air conditioner using a refrigerant comprises an outdoor unit, at least one floor heating system and at least one air conditioning system, wherein the at least one floor heating system and the at least one air conditioning system are connected with the outdoor unit, and the capacity output control method comprises the following steps: in the operation process of the multi-split floor heating system, when the outdoor unit cannot meet the capacity requirement of the floor heating system, comparing and judging the set temperature and the indoor temperature of all opened air conditioning systems, if the difference value between the indoor temperature of the air conditioning system and the set temperature is smaller than a, stopping the corresponding air conditioning system, if the difference value between the set temperature and the indoor temperature of all the air conditioning systems is larger than or equal to a, controlling the opened air conditioning systems to run in low wind, then judging whether the capacity of the outdoor unit can meet the requirement of the floor heating system, if so, judging whether the capacity of the outdoor unit can meet the requirement of the floor heating system again after time T, and if not, sequentially closing the opened air conditioning systems until the capacity of the outdoor unit can meet the requirement of the floor heating system or all the opened air conditioning systems are closed.
Preferably, when an air conditioning system is started and a floor heating system is not started, if the floor heating system is started in the operation process, the capacity requirement of the floor heating system to be started is calculated firstly, the output ratio of a compressor of an outdoor unit is detected at the same time, if the capacity requirement of the floor heating system to be started is smaller than or equal to the residual capacity requirement of the outdoor unit, the floor heating system is directly started, if the capacity requirement of the floor heating system to be started is larger than the residual capacity requirement of the outdoor unit, the set temperature and the indoor temperature of all started air conditioning systems are compared and judged, if the difference between the indoor temperature of the air conditioning system and the set temperature is smaller than a, the corresponding air conditioning system is shut down, if the difference between the set temperature and the indoor temperature of all air conditioning systems is larger than or equal to a, the started air conditioning systems are controlled to run in low wind, then whether the capacity of the outdoor unit can meet the requirement of the floor heating system is judged again, if the capacity of the outdoor unit can meet the capacity requirement of the floor heating system after time T, and if the capacity of the outdoor unit can not meet the capacity requirement of the floor heating system, the outdoor unit can meet the capacity requirement of the floor heating system, and the outdoor unit can meet the capacity requirement of the outdoor unit.
Preferably, when the floor heating system is started, the outdoor unit operates at 45 ℃ according to the target high-pressure saturation temperature of the floor heating system.
Preferably, when the air conditioning system is not started and the floor heating system is started, if the air conditioning system is started in the running process, firstly calculating the capacity requirement of the air conditioning system to be started, and simultaneously detecting the output ratio of a compressor of the outdoor unit, if the capacity requirement of the air conditioning system to be started is less than or equal to the residual capacity requirement of the outdoor unit and the high-pressure saturation temperature of the floor heating system is greater than or equal to 45 ℃, directly starting the air conditioning system and running in low wind, judging again after the time T, and if the capacity requirement of the air conditioning system to be started is greater than the residual capacity requirement of the outdoor unit, forbidding the air conditioning system to be started.
Preferably, when the air conditioning system and the floor heating system are both opened, if a new floor heating system is opened or the requirement of the capacity of the floor heating system is increased by b, the set temperature and the indoor temperature of all opened air conditioning systems are compared and judged, if the difference value between the indoor temperature of the air conditioning system and the set temperature is smaller than a, the corresponding air conditioning system is shut down, if the difference value between the set temperature of all air conditioning systems and the indoor temperature is larger than or equal to a, the opened air conditioning systems are controlled to run in low wind, then whether the capacity of the outdoor unit can meet the requirement of the floor heating system is judged, if yes, whether the capacity of the outdoor unit can meet the requirement of the floor heating system is judged again after time T, if not, the opened air conditioning systems are closed in sequence, and the capacity of the outdoor unit can meet the requirement of the floor heating system or all the opened air conditioning systems are closed.
Preferably, b is 20%.
Preferably, a is 3-8 ℃ and T is 3-15 minutes.
The invention can give full play to the capacity of the outdoor unit, solve the problem of poor full-open effect of the floor heating system and the air conditioning system in the prior industry, and simultaneously reasonably give full play to the capacity of the outdoor unit to supply heat to the air conditioning system while meeting the requirement of the floor heating system through the priority.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a working principle diagram of the present invention.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Example 1
As shown in fig. 1 and 2, a capacity output control method for a floor heating multi-split air conditioner using a refrigerant, the floor heating multi-split air conditioner comprising an outdoor unit 1, and at least one floor heating system 2 and at least one air conditioning system 3 connected to the outdoor unit 1, the capacity output control method comprises the following steps: in the process of running of the multi-split floor heating system, when the outdoor unit 1 cannot meet the capacity requirements of the floor heating system 2, comparing and judging the set temperatures and the indoor temperatures of all opened air conditioning systems 3, if the difference between the indoor temperature and the set temperature of the air conditioning system 3 is smaller than a, stopping the corresponding air conditioning system 3, if the difference between the set temperature and the indoor temperature of all the air conditioning systems 3 is larger than or equal to a, controlling the opened air conditioning systems 3 to run in low wind, then judging whether the capacity of the outdoor unit 1 can meet the requirements of the floor heating system 2, if so, judging whether the capacity of the outdoor unit 1 can meet the requirements of the floor heating system 2 again after time T, if not, sequentially closing the opened air conditioning systems 3 until the capacity of the outdoor unit 1 can meet the requirements of the floor heating system 2 or all the opened air conditioning systems 3 are closed, and closing the air conditioning systems 3 from small to large according to large capacity requirements when being closed.
When the air conditioning system 3 is opened and the floor heating system 2 is not opened, if the floor heating system 2 is opened in the operation process, firstly calculating the capacity requirement of the floor heating system 2 to be opened, simultaneously detecting the output ratio of a compressor of the outdoor unit 1, if the capacity requirement of the floor heating system 2 to be opened is smaller than or equal to the residual capacity requirement of the outdoor unit 1, directly opening the floor heating system 2, if the capacity requirement of the floor heating system 2 to be opened is larger than the residual capacity requirement of the outdoor unit 1, comparing and judging the set temperature and the indoor temperature of all opened air conditioning systems 3, if the difference value between the indoor temperature of the air conditioning system 3 and the set temperature is smaller than a, stopping the corresponding air conditioning system 3, if the difference value between the set temperature and the indoor temperature of all air conditioning systems 3 is larger than or equal to a, controlling the opened air conditioning systems 3 to be operated in low wind, then judging again whether the capacity of the outdoor unit 1 can meet the requirement of the floor heating system 2, if the difference value is larger than or not, judging again after time T, if the capacity of all the outdoor units 1 can meet the requirement of the outdoor unit 2, closing the air conditioning system 3, and closing the outdoor unit 3 can meet the requirement of the small floor heating system 2.
When the floor heating system 2 is started, the outdoor unit 1 operates at a target high-pressure saturation temperature of 45 ℃ according to the floor heating system 2.
When the air conditioning system 3 is not started and the floor heating system 2 is started, if the air conditioning system 3 is started in the running process, firstly calculating the capacity requirement of the air conditioning system 3 to be started, and simultaneously detecting the output ratio of a compressor of the outdoor unit 1, if the capacity requirement of the air conditioning system 3 to be started is less than or equal to the residual capacity requirement of the outdoor unit 1 and the saturation temperature of the high pressure of the floor heating system 2 is more than or equal to 45 ℃, directly starting the air conditioning system 3 and running in low wind, judging again after the time T, and if the capacity requirement of the air conditioning system 3 to be started is more than the residual capacity requirement of the outdoor unit 1, forbidding the air conditioning system 3 to be started.
When the air conditioning system 3 and the floor heating system 2 are both opened, if a new floor heating system 2 is opened or the capacity requirement of the floor heating system 2 is increased by b, comparing and judging the set temperature and the indoor temperature of all opened air conditioning systems 3, if the difference between the indoor temperature of the air conditioning system 3 and the set temperature is smaller than a, stopping the corresponding air conditioning system 3, if the difference between the set temperature and the indoor temperature of all air conditioning systems 3 is larger than or equal to a, controlling the opened air conditioning system 3 to run in low wind, then judging whether the capacity of the outdoor unit 1 can meet the requirement of the floor heating system 2, if so, judging whether the capacity of the outdoor unit 1 can meet the requirement of the floor heating system 2 again after time T, if not, sequentially closing the opened air conditioning systems 3 until the capacity of the outdoor unit 1 can meet the requirement of the floor heating system 2 or all the opened air conditioning systems 3 are closed, and closing the air conditioning systems 3 from small to large according to the capacity requirement when being closed.
The b is 20 percent.
The temperature a is 3-8 ℃, and the temperature T is 3-15 minutes.
Finally, it should be noted that the above-mentioned list is only the specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (6)
1. A capacity output control method for a floor heating multi-split air conditioner using a refrigerant is characterized in that the floor heating multi-split air conditioner comprises an outdoor unit (1), and at least one floor heating system (2) and at least one air conditioning system (3) which are connected with the outdoor unit (1), and the capacity output control method comprises the following steps: in the operation process of the multi-split air conditioner for floor heating, when the outdoor unit (1) cannot meet the capacity requirement of the floor heating system (2), comparing and judging the set temperature and the indoor temperature of all opened air conditioning systems (3), if the difference value between the indoor temperature and the set temperature of the air conditioning system (3) is smaller than a, stopping the corresponding air conditioning system (3), if the difference value between the set temperature and the indoor temperature of all the air conditioning systems (3) is larger than or equal to a, controlling the opened air conditioning systems (3) to run in low wind, then judging whether the capacity of the outdoor unit (1) can meet the requirement of the floor heating system (2), if so, judging whether the capacity of the outdoor unit (1) can meet the requirement of the floor heating system (2) again after time T, and if not, sequentially closing the opened air conditioning systems (3) until the capacity of the outdoor unit (1) can meet the requirement of the floor heating system (2) or all the opened air conditioning systems (3) are closed; when the air conditioning system (3) is not started, and the floor heating system (2) is started, if the air conditioning system (3) is started in the running process, firstly calculating the capacity requirement of the air conditioning system (3) to be started, simultaneously detecting the output ratio of a compressor of the outdoor unit (1), if the capacity requirement of the air conditioning system (3) to be started is less than or equal to the residual capacity requirement of the outdoor unit (1), and the high-pressure saturation temperature of the floor heating system (2) is more than or equal to 45 ℃, directly starting the air conditioning system (3) and running in low wind, judging again after time T, and if the capacity requirement of the air conditioning system (3) to be started is more than the residual capacity requirement of the outdoor unit (1), forbidding the air conditioning system (3) to be started.
2. The capacity output control method for the refrigerant floor heating multi-split air conditioner as claimed in claim 1, wherein when an air conditioning system (3) is turned on and a floor heating system (2) is not turned on, if the floor heating system (2) is turned on in the operation process, the capacity requirement of the floor heating system (2) to be turned on is calculated first, the output ratio of a compressor of an outdoor unit (1) is detected, if the capacity requirement of the floor heating system (2) to be turned on is less than or equal to the residual capacity requirement of the outdoor unit (1), the floor heating system (2) is directly turned on, if the capacity requirement of the floor heating system (2) to be turned on is greater than the residual capacity requirement of the outdoor unit (1), the set temperatures and the indoor temperatures of all turned-on air conditioning systems (3) are compared and judged, if the difference between the indoor temperature of the air conditioning system (3) and the set temperature is less than a, the corresponding air conditioning system (3) is shut down, if the difference between the set temperatures and the indoor temperatures of all the air conditioning systems (3) is greater than or less than a, the outdoor unit (1) is turned on, and if the outdoor unit (2) can be turned off again, the outdoor unit (1) can meet the outdoor unit (1) operation time requirement, and the outdoor unit (1) can be turned on, and the outdoor unit (2) can be turned off, and the outdoor unit (1) can be judged again, and whether the outdoor unit can be turned on, and the outdoor unit can be turned off, and the outdoor unit can be turned on, and the outdoor unit can be judged again, and whether the outdoor unit can be turned off, and the outdoor unit can be turned on again, and the outdoor unit can be judged again, and whether the outdoor unit can be judged again, and the outdoor unit can be turned on, if the outdoor unit can be turned on, the outdoor unit can be judged again, and the outdoor unit can be turned on, and the outdoor unit can be judged again, the outdoor unit can be turned on, and the outdoor unit can be turned on, the outdoor unit can be judged All the turned-on air conditioning systems (3) are turned off.
3. The capacity output control method for the floor heating multi-split air conditioner using the refrigerant as claimed in claim 2, wherein when the floor heating system (2) is turned on, the outdoor unit (1) is operated at a target high pressure saturation temperature of 45 ℃ of the floor heating system (2).
4. The capacity output control method for the refrigerant floor heating multi-split air conditioner is characterized in that when an air conditioning system (3) and a floor heating system (2) are both started, if a new floor heating system (2) is started or the capacity requirement of the floor heating system (2) is increased by b, the set temperature and the indoor temperature of all started air conditioning systems (3) are compared and judged, if the difference between the indoor temperature of the air conditioning system (3) and the set temperature is smaller than a, the corresponding air conditioning system (3) is stopped, if the difference between the set temperature of all air conditioning systems (3) and the indoor temperature is larger than or equal to a, the started air conditioning system (3) is controlled to run in low wind, then whether the capacity of the outdoor unit (1) can meet the requirement of the floor heating system (2) is judged, if the capacity of the outdoor unit (1) can meet the requirement of the floor heating system (2) again, and if the capacity of the outdoor unit (1) can not meet the requirement of the floor heating system (2), the started air conditioning system (3) is closed in sequence until all outdoor units (2) can meet the capacity requirement of the outdoor unit (1).
5. The capacity output control method for the floor heating multi-split air conditioner using the refrigerant as set forth in claim 4, wherein b is 20%.
6. The capacity output control method using the refrigerant floor heating multi-split air conditioner according to any one of claims 1 to 4, wherein a is 3 to 8 ℃ and T is 3 to 15 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110081728.1A CN113375238B (en) | 2021-01-21 | 2021-01-21 | Capacity output control method for ground heating multi-split air conditioner using refrigerant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110081728.1A CN113375238B (en) | 2021-01-21 | 2021-01-21 | Capacity output control method for ground heating multi-split air conditioner using refrigerant |
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| CN113375238B true CN113375238B (en) | 2022-11-25 |
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| CN114909788A (en) * | 2022-04-27 | 2022-08-16 | 浙江中广电器集团股份有限公司 | Control method for simultaneous on-line ground heating and air conditioning of heat pump EVI (electric vacuum insulation) multi-split air conditioner |
| CN114811715A (en) * | 2022-04-27 | 2022-07-29 | 浙江中广电器集团股份有限公司 | Energy-saving control method for heat pump EVI waterless floor heating multi-split air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11287501A (en) * | 1998-03-31 | 1999-10-19 | Sanyo Electric Co Ltd | Air conditioning system |
| CN102650484A (en) * | 2012-01-19 | 2012-08-29 | 浙江师范大学 | Control method for multifunctional multi-connected unit |
| CN105276725B (en) * | 2014-07-23 | 2019-01-11 | 珠海格力电器股份有限公司 | A kind of combined air conditioners Hot water units |
| JP5975135B1 (en) * | 2015-03-31 | 2016-08-23 | ダイキン工業株式会社 | Control system |
| CN107023960B (en) * | 2017-04-13 | 2020-01-31 | 青岛海尔空调器有限总公司 | floor heating type air conditioner and control method |
| CN107477805B (en) * | 2017-09-12 | 2020-04-07 | 青岛海信日立空调系统有限公司 | Multi-split air-conditioning floor heating system and control method thereof |
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