CN106642415B - Multi-split air conditioner and control method thereof - Google Patents
Multi-split air conditioner and control method thereof Download PDFInfo
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- CN106642415B CN106642415B CN201510732952.7A CN201510732952A CN106642415B CN 106642415 B CN106642415 B CN 106642415B CN 201510732952 A CN201510732952 A CN 201510732952A CN 106642415 B CN106642415 B CN 106642415B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 abstract description 22
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
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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
- F24F3/06—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 characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—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 characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
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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
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a multi-split radiant air conditioner and a control method thereof. This multi-split radiation air conditioner includes: the air conditioner indoor units (1) are positioned in the same room, and the air conditioner indoor units (1) are arranged in parallel or in series; the air conditioner outdoor unit (2), the refrigerant pipelines of the air conditioner indoor units (1) are connected with the air conditioner outdoor unit (2) through liquid collecting connectors (3); and the throttling devices are arranged in one-to-one correspondence with the air conditioner indoor unit (1). According to the multi-split radiant air conditioner, the problems that in the prior art, the heat dissipation speed of the multi-split radiant air conditioner is low, and the indoor temperature is distributed unevenly for a long time can be solved.
Description
Technical Field
The invention relates to the technical field of radiation air conditioners, in particular to a multi-split radiation air conditioner and a control method thereof.
Background
At present, the existing air conditioner is fixed by one-time installation, cannot be moved in the later period, needs to be moved and can only be moved by after-sales personnel, is complex in work and has certain influence on the stability and the working efficiency of the air conditioner. The household radiation air conditioner carries out refrigeration and heating through heat radiation and air convection, and needs a micro-channel radiator with a large area in order to achieve a good effect, so that the occupied area of the radiation air conditioner is large, and the attractiveness is influenced. The temperature near the air outlet is changed greatly due to only one air outlet of the existing air conditioner, the temperature far away from the air outlet of the air conditioner is changed unobviously, and the indoor temperature is distributed unevenly for a long time due to the low heat dissipation speed of the radiation air conditioner, so that the use experience of a user is poor.
Disclosure of Invention
The invention aims to provide a multi-split air-conditioner and a control method thereof, and aims to solve the problems that in the prior art, the multi-split air-conditioner is low in heat dissipation speed and uneven in indoor temperature distribution for a long time.
According to an aspect of the present invention, there is provided a multi-split radiation air conditioner including: the air conditioner indoor units are positioned in the same room and arranged in parallel or in series; the refrigerant pipelines of the air conditioner internal units are connected with the air conditioner external units through liquid collecting connectors; and the throttling devices are arranged in one-to-one correspondence with the air conditioner internal units.
Preferably, the air conditioner indoor units are independent of each other and are respectively arranged at different positions in the room.
Preferably, the condensate pipe of each air conditioner indoor unit is connected to a condensate collector.
Preferably, the throttling device comprises a plurality of throttling valves arranged in the liquid collecting joint, and the throttling valves correspond to the air conditioner internal units one by one.
Preferably, the liquid inlet and outlet pipes of each air conditioner indoor unit are provided with flow sensors.
Preferably, each air conditioner indoor unit is provided with a temperature sensor.
Preferably, two adjacent air conditioner internal units are connected in series at the liquid collecting pipe through a quick coupling.
According to another aspect of the present invention, there is provided a control method of a multi-split radiation air conditioner, including: detecting the number of running air conditioner internal units; detecting the ambient temperature of the position of each air conditioner indoor unit; and adjusting the opening degree of the throttling device corresponding to the corresponding air conditioner indoor unit according to the target ambient temperature, so that the ambient temperature of the position where the corresponding air conditioner indoor unit is located tends to the target ambient temperature.
Preferably, the step of adjusting the opening degree of the throttling device corresponding to the corresponding air conditioner internal unit according to the target environmental temperature includes: determining the difference value between each air conditioner internal unit and the target environment temperature; calculating the target opening degree of a throttling device corresponding to the corresponding air conditioner internal unit according to the determined temperature difference value; and adjusting the opening degree of a throttling device of the corresponding air conditioner indoor unit.
Preferably, the opening degree of the throttle device is determined by the following formula:
……
wherein
Adjusting the target opening degree of the nth air conditioner indoor unit; Δ tnAnd the difference value between the ambient temperature of the position of the nth air conditioner indoor unit and the target ambient temperature is obtained.
The multi-split air-conditioner radiation air conditioner comprises a plurality of air-conditioner indoor units positioned in the same room, and the air-conditioner indoor units can be positioned in different positions of the same room, so that the problem of low heat dissipation speed of the multi-split air-conditioner radiation air conditioner is solved, the temperature in the room is rapidly and uniformly distributed, and a user obtains better use experience. The throttling devices in one-to-one correspondence with the air conditioner indoor units can quickly adjust the temperatures of the corresponding air conditioner indoor units, so that the temperatures in the room can quickly reach the target temperature, and the uniformity of the temperature distribution in the room is more effectively ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic structural diagram of a first air conditioner internal unit of a multi-split radiant air conditioner according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of an air conditioner internal unit of a second multi-split radiant air conditioner according to an embodiment of the invention;
fig. 3 is a schematic view illustrating a first assembly structure of an air conditioner indoor unit of a multi-split radiant air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic view illustrating a second assembly structure of an air conditioner indoor unit of a multi-split radiant air conditioner according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for controlling a multi-split radiant air conditioner according to an embodiment of the present invention.
Description of reference numerals: 1. an air conditioner indoor unit; 2. an air conditioner outdoor unit; 3. a liquid collection joint; 4. a condensed water collector; 5. a quick coupling; 6. hooking; 7. connecting holes; 8. and a hub.
Detailed Description
In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Referring to fig. 1 to 4 in combination, according to an embodiment of the present invention, a multi-split radiation air conditioner includes: the air conditioner indoor units 1 are positioned in the same room, and the air conditioner indoor units 1 are arranged in parallel or in series; the air conditioner external unit 2 is connected with refrigerant pipelines of the air conditioner internal units 1 through liquid collecting joints 3; and the throttling devices are arranged in one-to-one correspondence with the air conditioner indoor unit 1.
The multi-split air-conditioner radiation air conditioner comprises a plurality of air-conditioner indoor units positioned in the same room, and the air-conditioner indoor units can be positioned in different positions of the same room, so that the problem of low heat dissipation speed of the multi-split air-conditioner radiation air conditioner is solved, the temperature in the room is rapidly and uniformly distributed, and a user obtains better use experience. The throttling devices in one-to-one correspondence with the air conditioner indoor units can quickly adjust the temperatures of the corresponding air conditioner indoor units, so that the temperatures in the room can quickly reach the target temperature, and the uniformity of the temperature distribution in the room is more effectively ensured.
A plurality of air conditioner internal units 1 are mutually independent and are respectively arranged at different positions of a room, and after the multi-split air conditioner is started, the temperature of the room can be adjusted at different positions at the same time, so that the temperature of the room can be rapidly and uniformly distributed, and the temperature diffusion speed of the radiation air conditioner is improved. When the radiation air conditioner is installed, the number and the installation positions of the air conditioner internal units can be selected according to the room area and the space requirement.
The condensate pipe of each air conditioner indoor unit 1 is connected to the condensate water collector 4, and can collect the condensate water of each air conditioner indoor unit 1 and then output the condensate water to the outside, so that the condensate water is prevented from causing adverse effects on the operation of the radiation air conditioner.
In this embodiment, the throttling device includes a plurality of throttling valves disposed in the liquid collecting joint 3, and the throttling valves correspond to the air conditioner internal units 1 one to one. The choke valve is integrated on liquid collecting connector 3, can form the protection to the choke valve through liquid collecting connector 3's casing, improves the degree of integrating, reduces the installation procedure, improves and connects the convenience.
Of course, the throttle valve and the liquid collecting joint 3 may be independent from each other, and the throttle valve may be separately provided on a connection pipe between the liquid collecting joint 3 and the air conditioner internal unit, so that the throttle valve may be separately controlled.
The throttle valve adjusts the refrigerant quantity of the air conditioner indoor units 1 according to different electric control programs, so that the heating quantity of each air conditioner indoor unit 1 is adjusted, and the ambient temperature of each position of a room can reach the target ambient temperature.
In this embodiment, the air conditioner internal units 1 are connected in parallel, and each air conditioner internal unit 1 is not connected with each other in a direct rigid manner, so that the position of the air conditioner internal unit 1 is set more flexibly, the position of the air conditioner internal unit 1 can be adjusted according to the characteristics of a room, and a satisfactory temperature adjusting effect is obtained. In addition, because the volume of each air conditioner internal unit 1 is less, and weight is lighter, therefore position adjustment is more convenient, and it is also more convenient to install, and the user can adjust by oneself, can improve the convenience of air conditioner internal unit 1 position adjustment, reduces the air conditioner and moves quick-witted cost.
The liquid inlet and outlet pipes of each air conditioner indoor unit 1 are provided with flow sensors, and the refrigerant inlet flow and the refrigerant outlet flow of the corresponding air conditioner indoor unit can be measured, so that the opening degree of the throttle valve can be determined more accurately, and the temperature of the radiation air conditioner can be adjusted more quickly and accurately.
All be provided with temperature sensor on each air conditioner internal unit 1, can acquire the ambient temperature of corresponding air conditioner internal unit 1 position department fast to provide the temperature foundation for the adjustment of throttle valve aperture.
The automatically controlled online line of a plurality of air conditioner internal units 1 is connected to the concentrator 8 in unison, then realizes being connected through concentrator 8 and air conditioner outer unit 2, can conveniently control each air conditioner internal unit 1 through the controller for air conditioner internal unit's choke valve aperture is adjusted more conveniently, has also avoided the chaotic problem of wiring, has improved the orderliness and the orderliness of wiring.
Referring to fig. 1 to 3, a connection mode is provided in which a plurality of air conditioner internal units 1 are connected in series, and two adjacent air conditioner internal units 1 are connected in series at a liquid collecting pipe through a quick coupling 5, so that a plurality of small air conditioner internal units 1 are assembled into a high-power radiation air conditioner. Because each air conditioner internal unit 1 is independent of each other, realizes connecting through quick-operation joint 5, consequently the dismantlement and the change of air conditioner internal unit 1 are all more convenient for the power adjustment of whole radiation air conditioner is also convenient more quick.
In this embodiment, two air conditioner indoor units which need to be connected to each other are combined by removing the water receiving tray from the air conditioner indoor unit positioned on the upper part and removing the top cover from the air conditioner indoor unit positioned on the lower part, and connecting the hook 6 on the rear shell of the air conditioner indoor unit on the lower part with the connecting hole 7 of the air conditioner indoor unit on the upper part. The liquid outlet pipe of the lower air conditioner indoor unit is connected with the liquid inlet pipe of the upper indoor unit through a quick connector 5, and the water collecting tray and the condensate pipe of the lower air conditioner indoor unit are shared for water drainage.
Referring to fig. 5 in combination, according to an embodiment of the present invention, a control method of a multi-split radiation air conditioner includes: detecting the number of the running air conditioner indoor units 1; detecting the ambient temperature of the position of each air conditioner indoor unit 1; and adjusting the opening degree of the throttling device corresponding to the corresponding air conditioner indoor unit 1 according to the target ambient temperature, so that the ambient temperature of the position of the corresponding air conditioner indoor unit 1 tends to the target ambient temperature.
When the radiation air conditioner is used for cooling and heating, the air conditioner external unit automatically determines the number of the air conditioner internal units in a working state according to signal lines of the air conditioner internal units, and automatically adjusts the frequency of the compressor and the opening of the throttling device. The flow sensors are arranged on the liquid inlet and outlet pipes of each indoor unit, the temperature sensors are arranged in the indoor units, and the opening degree of the throttling device of each air conditioner indoor unit 1 on the liquid collecting joint 3 is adjusted according to the environmental temperature detected by different air conditioner indoor units, so that the purpose of capability balance of each air conditioner indoor unit is achieved, and the indoor temperature is balanced with reasonable operation efficiency.
The step of adjusting the opening degree of the throttling device corresponding to the corresponding air conditioner indoor unit 1 according to the target environment temperature comprises the following steps: determining the difference value between each air conditioner indoor unit 1 and the target environment temperature; calculating the target opening degree of the throttling device corresponding to the corresponding air conditioner internal unit 1 according to the determined temperature difference value; the opening degree of the throttling device of the corresponding air conditioner indoor unit 1 is adjusted.
When the opening degree of the throttling device is determined, detecting that the number of the air conditioner internal units is n, the target temperature set by a user is t, and the environment temperature detected by each air conditioner internal unit is as follows: t1, t2, ti … … tn; the difference between the ambient temperature ti of the ith air conditioner indoor unit 1 and the target ambient temperature t is Δ ti ═ ti-t |, and the magnitudes of ti and t are compared. In the case of refrigeration, if ti is less than t, the temperature at the position of the air conditioner indoor unit is less than the target ambient temperature, and the temperature does not need to be adjusted, and at this time, Δ ti is set to be 0. Under the heating condition, if ti > t, the temperature at the position of the air conditioner indoor unit is greater than the target environment temperature, the temperature does not need to be adjusted, at the moment, setting delta ti to be 0, sequentially calculating the temperature difference values of all the air conditioner indoor units, and then determining the opening degree of the throttling device corresponding to each air conditioner indoor unit through the following formula:
……
wherein
Adjusting the target opening degree of the nth air conditioner indoor unit; Δ tnAnd the difference value between the ambient temperature of the position of the nth air conditioner indoor unit and the target ambient temperature is obtained.
The controller adjusts the throttling devices according to the determined opening degrees of the throttling devices of the air conditioner internal units, so that the air conditioner internal units can quickly and accurately adjust the ambient temperature to the target ambient temperature, and the requirements of users are met.
The serial numbers of the air conditioner internal units can be preset, so that the controller can conveniently perform accurate control.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (5)
1. A control method of a multi-split air conditioner, wherein the multi-split air conditioner comprises:
the air conditioner indoor units (1) are positioned in the same room, and the air conditioner indoor units (1) are arranged in series;
the air conditioner comprises an air conditioner external unit (2), wherein refrigerant pipelines of the air conditioner internal units (1) are connected with the air conditioner external unit (2) through liquid collecting connectors (3);
the throttling devices are arranged in one-to-one correspondence with the air conditioner internal unit (1);
the throttling device comprises a plurality of throttling valves, and the throttling valves correspond to the air conditioner internal units (1) one by one; the throttle valve is independently arranged on a connecting pipeline between the liquid collecting joint (3) and an air conditioner internal unit;
under the condition that the air conditioner internal units (1) are connected in series, two adjacent air conditioner internal units (2) are connected in series at the liquid collecting pipe through the quick connector (5);
the control method comprises the following steps:
detecting the number of the running air conditioner internal units (1);
detecting the ambient temperature of the position of each air conditioner indoor unit (1);
adjusting the opening degree of a throttling device corresponding to the corresponding air conditioner internal unit (1) according to the target ambient temperature to enable the ambient temperature of the position where the corresponding air conditioner internal unit (1) is located to tend to the target ambient temperature;
the step of adjusting the opening degree of the throttling device corresponding to the corresponding air conditioner internal unit (1) according to the target environment temperature comprises the following steps:
determining the difference value between each air conditioner internal unit (1) and the target environment temperature;
calculating the target opening degree of the throttling device corresponding to the corresponding air conditioner internal unit (1) according to the determined temperature difference value;
adjusting the opening degree of a throttling device of the corresponding air conditioner indoor unit (1);
wherein the opening degree of the throttling device is determined by the following formula:
……
wherein
Adjusting the target opening degree of the nth air conditioner indoor unit; Δ tnAnd the difference value between the ambient temperature of the position of the nth air conditioner indoor unit and the target ambient temperature is obtained.
2. A control method of a multi-split radial air conditioner according to claim 1, wherein the plurality of air conditioner indoor units (1) are independent of each other and are respectively disposed at different locations of a room.
3. A control method of a multi-split radiant air conditioner as claimed in claim 2, characterized in that the condensate pipe of each air conditioner indoor unit (1) is connected to a condensate collector (4).
4. A control method of a multi-split radial air conditioner as claimed in claim 1, characterized in that the liquid inlet and outlet pipes of each air conditioner indoor unit (1) are provided with flow sensors.
5. A control method of a multi-split radial air conditioner according to claim 1, characterized in that each air conditioner indoor unit (1) is provided with a temperature sensor.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107314439B (en) * | 2017-06-09 | 2021-04-20 | 青岛海尔空调电子有限公司 | Detachable combined air conditioning unit |
| CN107270391B (en) * | 2017-06-09 | 2021-07-27 | 青岛海尔空调电子有限公司 | Detachable combined air conditioning unit |
| CN112797507B (en) * | 2020-12-30 | 2022-08-23 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner starting control method and device and multi-split air conditioner |
| CN115682100B (en) * | 2022-11-07 | 2024-07-19 | 珠海格力电器股份有限公司 | Air conditioning system control method and device, air conditioning system and storage medium |
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| CN104006497A (en) * | 2014-05-26 | 2014-08-27 | 广东美的集团芜湖制冷设备有限公司 | One-to-multi air conditioning system refrigerant flow control method and device |
| CN105371517A (en) * | 2015-11-04 | 2016-03-02 | 青岛海尔空调器有限总公司 | Radiant air conditioner and defrosting method thereof |
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