CN100501258C - Control method of multi type air conditioner - Google Patents
Control method of multi type air conditioner Download PDFInfo
- Publication number
- CN100501258C CN100501258C CNB2005101339856A CN200510133985A CN100501258C CN 100501258 C CN100501258 C CN 100501258C CN B2005101339856 A CNB2005101339856 A CN B2005101339856A CN 200510133985 A CN200510133985 A CN 200510133985A CN 100501258 C CN100501258 C CN 100501258C
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- Prior art keywords
- compressor
- premises station
- ability
- control method
- air conditioner
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- 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.)
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Classifications
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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
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/28—Refrigerant piping for connecting several separate outdoor units
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/60—Arrangement or mounting of the outdoor unit
- F24F1/68—Arrangement of multiple separate outdoor units
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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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)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a multi type air conditioner, especially to a method for controlling a multi type air conditioner with high system efficiency by effectively using an outdoor heat exchanger and minimizing refrigeration accumulation due to suitably setting of priority of a compressor. According to the control method of multi type air conditioner in accordance with the present invention, a plurality of outdoor machines are connected to an indoor machine through a common pipe, wherein some outdoor machines are provided with variable capability compressors and constant capability compressors, and other outdoor machines are provided with only constant capability compressors. The method is characterized in that it has the steps of: confirming the prior starting-up sequence of compressors to minimize refrigeration accumulation; according to the increasing refrigeration/heating loading, to superadd starting up compressors in turn on the basis of the prior starting-up sequence of compressors.
Description
Technical field
The present invention relates to a kind of control method of multi type air conditioner, relate in particular to by common pipe arrangement and on indoor set, connect side by side in the multi type air conditioner of many off-premises stations, have only wherein an off-premises station to have the control method of multi type air conditioner of regulating the variable ability compressor of compressor capacity by the change ability in these many off-premises stations.
Background technology
Usually, multi type air conditioner is used for that a plurality of interior spaces are carried out air and is in harmonious proportion, and generally connects many indoor sets on an off-premises station and constitutes.But because of the The Enlargement Tendency of building causes taking place at any time the change of many desired loads of indoor set, and its mobility scale is bigger; Thereby, when being responsible for the desired cooling load of whole indoor sets (or heating load) by an off-premises station, be accompanied by need possess big capacity, financial burden such as compressor at high price.
In view of this, come actively to handle the desired load variations of indoor set by many off-premises stations are set since recently, and for the pipe arrangement that reduces refrigerant conveying the common common pipe arrangement that connects many off-premises stations and many indoor sets that uses.
In addition, wherein certain ability compressor that off-premises station is provided for changing the variable ability compressor of compression volume simultaneously and is used to provide certain compression volume in the described off-premises station, described variable ability compressor suits to provide the compression volume that conforms to it for the variation according to indoor set room conditioning ability.And certain ability compressor is set all in the residue off-premises station.
Kind as this variable ability compressor comprises: variable mode compressor of revolution and pulsating changeable type compressor.The variable mode compressor of revolution requires the variation of ability to regulate for change the revolution that the power frequency that puts on compressor is controlled motor by VFC thereby make it satisfy refrigeration by the capacity (ability) that changes compressor; And the pulsating changeable type compressor is adjusted to the variation of satisfying refrigerating/heating requirement ability for by the compression time of regulating discharging refrigerant and the ability that the non-compression time of zero load time changes compressor with this.
According to prior art, in the process of setting the compressor start order, when refrigerating/heating load (P) when having the off-premises station ability (Q) of variable ability compressor and certain ability compressor simultaneously, the off-premises station of only operation " variable ability+certain ability "; When refrigerating/heating load (P) surpasses the off-premises station ability (Q) of " variable ability+certain ability ", restart other the off-premises station that only has certain ability compressor.
Therefore, as mentioned above, when only moving specific off-premises station for corresponding refrigerating/heating load, owing to can not utilize the outdoor heat converter of other off-premises stations, thereby not only heat exchange amount reduces, and also the efficient of system also can only reduce.For this is improved,, also refrigerating/heating load (P) is distributed to the method for all off-premises stations even can attempt to adopt the off-premises station ability (Q) of refrigerating/heating load (P) less than " variable ability+certain ability ".For example, when each off-premises station has the compressor of totally three continuous sequence numbers, all move with its three compressors 1,2,3 " variable ability+certain ability " off-premises station, it would be better to by mixing and use the compressor of " variable ability+certain ability " off-premises station and other " certain ability " off-premises station to make each off-premises station move a compressor 1,4,7, this can obtain higher efficient.
But because the working capacity of variable ability compressor is less, especially the change ability mode when variable ability compressor is not in the frequency transformation mode, but with the compression time mapping mode; Thereby, when existing no-load run during the time, because compressor is discharged side and is compared the relative low high pressure of formation with other off-premises station, thereby cause can not be successfully to the common fluid-through tube (during refrigeration) or common tracheae (when the heating) discharging refrigerant of common connection, and have the phenomenon that occurs building up cold-producing medium in " variable ability+certain ability " off-premises station thus.
Summary of the invention
The present invention proposes in order to address the above problem, its purpose is to provide a kind of control method of multi type air conditioner, many the off-premises stations that this multi type air conditioner is provided with variable ability compressor for a part wherein are connected in indoor set by common pipe arrangement and constitute, and by suitably setting the boot sequence of compressor, not only prevent from the phenomenon that cold-producing medium is built up takes place in the specific off-premises station, can also improve system effectiveness.
To achieve these goals, the control method of multi type air conditioner provided by the present invention, this multi type air conditioner is for being connected in indoor set with many off-premises stations by common pipe arrangement, and be equipped with variable ability compressor and certain ability compressor in the part off-premises station, and only being provided with certain ability compressor in all the other off-premises stations, described method is characterised in that and comprises step: build up the preferential boot sequence of minimum and definite each compressor in order to make cold-producing medium; Append successively based on the preferential boot sequence of described setting according to the increase of refrigerating/heating load and to start each compressor.
And, the boot sequence of described variable ability compressor is set at priority, and certain ability compressor of the off-premises station under the described variable ability compressor is set at next order.
And remaining certain ability compressor is set at: under the state that the off-premises station that does not have compressor operation exists, just do not allow to exist off-premises station that two above compressors move simultaneously, that only be made of certain ability compressor.
When described variable ability compressor and certain ability compressor operating, even variable ability compressor is not pressed the heap(ed) capacity operation, but, then append the compressor that only starts the off-premises station that constitutes by certain ability compressor as long as refrigerating/heating load surpasses the total capacity of two compressors.
Described variable ability compressor is for regulating the pulsating changeable type compressor of compression volume by regulating compression time.
Description of drawings
The structural representation of the multi type air conditioner that Fig. 1 is provided for the foundation embodiment of the invention;
Fig. 2 is the rough schematic at each compressor of Fig. 1;
Fig. 3 is the control flow chart that is used for the multi type air conditioner control method of key diagram 1;
Fig. 4 to Fig. 7 is the schematic diagram that is used for each compressor start order of key diagram 3.
Main symbol description: 10A, 10B, 10C are off-premises station, and 11A is variable ability compressor, and 12A, 13A, 11B-13B, 11C-13C are certain ability compressor, and 20 is indoor set, and 30 is common pipe arrangement, and 31 is common tracheae, and 32 for being total to fluid-through tube.
The specific embodiment
Below, the preferred embodiment that present invention will be described in detail with reference to the accompanying is provided.
The present invention is for will independently interconnecting between off-premises station and the off-premises station, and the combination that can come composition module type off-premises station by a single pipe arrangement, and the single pipe arrangement that connects these off-premises stations is connected with many indoor sets again, adds heat pump thereby formation can realize the refrigeration of each indoor set and the modular type that heats.Because, when only moving the pulsating compressor with variable in the specific off-premises station, if the working capacity of other off-premises station is bigger, then cause the pulsating compressor can not discharging refrigerant during no-load run, thereby just build up phenomenon to produce cold-producing medium in the off-premises station than low capacity operation pulsating compressor.Therefore, the present invention adds the preferential operation order of heat pump compressor by suitably setting described modular type, thereby when making cold-producing medium build up the phenomenon minimum, by suitably distributing the capacity between the off-premises station, and use outdoor heat converter effectively, and improve the efficient of system thus.
The a plurality of off-premises stations that are set up in parallel according to multi type air conditioner provided by the present invention are connected on a plurality of indoor sets that are set up in parallel by common pipe arrangement.As the one example, multi type air conditioner provided by the present invention as shown in Figure 1, three off-premises station 10A, the 10B, the 10C that are set up in parallel are connected in a plurality of indoor sets 20 by common pipe arrangement 30.
Each off-premises station 10A, 10B, 10C comprise: three compressor 11A-13A, 11B-13B, 11C-13C; Cross valve 14A, 14B, 14C; Outdoor heat converter 15A, 15B, 15C; Expansion valve 16A, 16B, 16C; Liquid reserve tank (receive tank) 17A, 17B, 17C; Accumulator (accumulator) 18A, 18B, 18C.And, be provided for controlling the controller of each inscape among each off-premises station 10A, 10B, the 10C, connect by order wire between the controller and receive and send messages.In these controllers, some controllers are used as master controller, and by carrying out the startup that refrigerating/heating load and each compressor are controlled in the information transmission with other controller and the controller that is arranged on each indoor set.
Be provided with a variable ability compressor 11A and two certain ability compressor 12A, 13A in the off-premises station 10A.In addition, be provided with three certain ability compressor 11B, 12B, 13B in the off-premises station 10B, be provided with three certain ability compressor 11C, 12C, 13C in the off-premises station 10C equally.
If with each compressor is benchmark reduced graph 1, then as shown in Figure 2, be provided with a variable ability compressor 11A and two certain ability compressor 12A, 13A in the off-premises station 10A, be provided with three certain ability compressor 11B, 12B, 13B in the off-premises station 10B, be provided with three certain ability compressor 11C, 12C, 13C in the off-premises station 10C equally.
Multi type air conditioner control method of the present invention below is described.
At first, step S100 to S108 by Fig. 3 sets after the preferential boot sequence that makes cold-producing medium build up each minimum compressor, increase and decrease according to the refrigerating/heating load starts each compressor according to the mode that the preferential boot sequence of setting starts associated compressors successively, thereby makes the cold-producing medium in the specific off-premises station build up minimum.
That is, when setting the preferential boot sequence of compressor in order to make cold-producing medium build up minimum, setting variable ability compressor 11A is the override order, secondly sets the certain ability compressor 12A that is positioned at identical off-premises station with variable ability compressor 11A.Then, if when refrigerating/heating load surpasses variable ability compressor 11A and certain ability compressor 12A sum, only set the compressor of the off-premises station of forming by certain ability compressor, startup one by one successively.This is because the capacity Q1 of variable ability compressor 11A is changed to heap(ed) capacity from minimum capacity, and this heap(ed) capacity is about 5 times of certain ability compressor capacity.If variable ability compressor 11A moves with minimum capacity, then the off-premises station that is caused being provided with variable ability compressor 11A by certain ability compressor 11B produces cold-producing medium accumulation phenomenon.Therefore, at first start variable ability compressor 11A, and then start certain ability compressor 12A or certain ability compressor 13A in the off-premises station be provided with variable ability compressor 11A then, then can reduce and above-mentioned phenomenon occurs and reduce cold-producing medium and build up.For example, according to refrigerating/heating load compressor start order with the hatching of the boot sequence of each compressor such as Fig. 4 to Fig. 7, according to 11A → 12A → 11B → 11C → ... order append startup.But as the one example, when variable ability compressor 11A is in operation with certain ability compressor 12A among, and next step takes turns to when starting certain ability compressor 11B or certain ability compressor 11C, even the working capacity of variable ability compressor 11A does not reach the heap(ed) capacity of this compressor, but, will start certain ability compressor 11B or 11C immediately as long as during the capacity sum of the heap(ed) capacity that the refrigerating/heating of judging load surpasses variable ability compressor 11A and certain ability compressor 12A.
Generally, if refrigerating/heating load P surpasses the capacity Q1 of variable ability compressor, then next step startup be provided with in the off-premises station of variable ability compressor, capacity is certain ability compressor of Q2.When refrigerating/heating load P surpasses Q1+Q2, compressor according to other off-premises stations of stating with load, and come to append successively a compressor of each off-premises station of startup in proper order according to any operation between the off-premises station of only forming by certain ability compressor, thereby, just do not allow to exist two above compressors move simultaneously a, off-premises station that constitutes by certain ability compressor as long as a compressor not have under the state that the off-premises station of operation exists yet.
And, when the off-premises station running status that is provided with variable ability compressor 11A is the certain ability compressor operating of variable ability compressor and, even variable ability compressor 11A does not press the heap(ed) capacity operation that is allowed, if but when being predicted to be refrigerating/heating load P and surpassing Q1+Q2, only then start the compressor of the off-premises station that constitutes by certain ability compressor.Thus, can solve along with the number of compressors in the system of being arranged at increases and is difficult to make compressor to start rapidly and keeps the problem that the refrigerating/heating effect needs the plenty of time.
In sum, the present invention is for will independently interconnecting between off-premises station and the off-premises station, and the combination that can come composition module type off-premises station by a single pipe arrangement, and the single pipe arrangement that connects these off-premises stations is connected with many indoor sets again, adds heat pump thereby formation can realize the refrigeration of each indoor set and the modular type that heats.And because, when only moving the pulsating compressor with variable in the specific off-premises station, if the working capacity of other off-premises station is bigger, then cause the pulsating compressor can not discharging refrigerant during no-load run, thereby just build up phenomenon to produce cold-producing medium in the off-premises station than low capacity operation pulsating compressor.Therefore, the present invention adds the preferential operation order of heat pump compressor by suitably setting described modular type, thereby use outdoor heat converter effectively by suitably distributing the capacity between the off-premises station when making cold-producing medium build up the phenomenon minimum, and improve the efficient of system thus.
Claims (5)
1, a kind of control method of multi type air conditioner, this multi type air conditioner is for being connected in indoor set with many off-premises stations by common pipe arrangement, and be equipped with variable ability compressor and certain ability compressor in the part off-premises station, and only be provided with certain ability compressor in all the other off-premises stations, described multi type air conditioner control method is characterised in that and comprises step:
Build up the preferential boot sequence of minimum and definite each compressor in order to make cold-producing medium;
Append successively based on the preferential boot sequence of described setting according to the increase of refrigerating/heating load and to start each compressor.
2, control method according to claim 1 is characterized in that the boot sequence of described variable ability compressor is set at priority, and certain ability compressor that will be provided with the off-premises station of described variable ability compressor is set at next order.
3, control method according to claim 2, it is characterized in that remaining certain ability compressor is set at: under the state that the off-premises station that a compressor also is not activated exists, can not have off-premises station that two above compressors move simultaneously, that only constitute by certain ability compressor.
4, control method according to claim 2, it is characterized in that when described variable ability compressor and certain ability compressor operating, even variable ability compressor is not pressed the heap(ed) capacity operation, but, then append the compressor that only starts the off-premises station of forming by certain ability compressor as long as refrigerating/heating load surpasses the total capacity of two compressors.
5, control method according to claim 1 is characterized in that described variable ability compressor is for regulating the pulsating changeable type compressor of compression volume by regulating compression time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050099681 | 2005-10-21 | ||
| KR1020050099681A KR101253231B1 (en) | 2005-10-21 | 2005-10-21 | Control method of multi type air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1952511A CN1952511A (en) | 2007-04-25 |
| CN100501258C true CN100501258C (en) | 2009-06-17 |
Family
ID=38058971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101339856A Expired - Fee Related CN100501258C (en) | 2005-10-21 | 2005-12-30 | Control method of multi type air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101253231B1 (en) |
| CN (1) | CN100501258C (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032647B (en) * | 2010-12-08 | 2013-10-30 | 海尔集团公司 | Magnetic suspension multi-nose central air-conditioning load distribution system and method |
| CN102538144B (en) * | 2012-02-14 | 2014-04-16 | 美的集团股份有限公司 | Multi-connected air-conditioning unit control method |
| CN103307698B (en) * | 2012-03-16 | 2016-12-14 | 珠海格力电器股份有限公司 | Air conditioning system and control method and device thereof |
| CN103375846B (en) * | 2012-04-27 | 2016-04-13 | 苏州惠林节能材料有限公司 | Drag an air-conditioner control system more |
| CN102620390A (en) * | 2012-04-27 | 2012-08-01 | 广东志高空调有限公司 | Incoming call random delay self-starting air conditioner control method |
| CN104807136B (en) * | 2014-01-27 | 2018-02-13 | 珠海格力电器股份有限公司 | Compressor operation scheduling method and system and air conditioning unit |
| JP6327558B2 (en) * | 2014-06-04 | 2018-05-23 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN104807059A (en) * | 2015-04-10 | 2015-07-29 | 王辉 | Micro-energy type energy-saving electric heating system |
| CN104833047B (en) * | 2015-04-22 | 2017-11-24 | 四川长虹电器股份有限公司 | A kind of control method and humidity control system |
| CN104990211B (en) * | 2015-06-24 | 2017-12-12 | 山东新力拓节能服务工程科技有限公司 | The control method of the centrifugal Central air-conditioning unit of multi-machine heads frequency conversion |
| CN105972769B (en) * | 2016-05-27 | 2018-12-14 | 广东美的暖通设备有限公司 | Heat-reclamation multi-compressors system progress control method, device and multi-line system |
| CN109237703B (en) * | 2018-08-20 | 2021-09-21 | 青岛海尔空调电子有限公司 | Control method for multi-split air conditioning system |
| CN109945426B (en) * | 2019-03-12 | 2020-10-09 | 珠海格力电器股份有限公司 | Module machine operation control method and device, module machine equipment and air conditioning system |
| CN113661364B (en) * | 2019-04-18 | 2023-03-10 | 三菱电机株式会社 | Control device for air conditioner, outdoor unit, relay unit, heat source unit, and air conditioner |
| CN110160295B (en) * | 2019-05-23 | 2021-06-08 | 百尔制冷(无锡)有限公司 | Energy adjusting method for parallel refrigerating system |
| CN111174367A (en) * | 2019-09-17 | 2020-05-19 | 同方泰德国际科技(北京)有限公司 | Control method suitable for parallel equipment rotation |
| CN111288697B (en) * | 2020-03-03 | 2021-09-24 | 百尔制冷(无锡)有限公司 | Frequency conversion control method for refrigeration parallel unit |
| CN111706962B (en) * | 2020-05-25 | 2021-05-18 | 珠海格力电器股份有限公司 | Control device and method of multi-air-conditioning system and multi-air-conditioning system |
| WO2022059154A1 (en) * | 2020-09-17 | 2022-03-24 | 東芝キヤリア株式会社 | Air conditioner |
| CN114135988A (en) * | 2021-11-15 | 2022-03-04 | 珠海格力电器股份有限公司 | Control method and device of modular air conditioning system, controller and air conditioning system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4110661B2 (en) * | 1999-03-31 | 2008-07-02 | 三菱電機株式会社 | Refrigeration air conditioner |
| JP3598357B2 (en) * | 1999-07-28 | 2004-12-08 | 株式会社日立製作所 | Multi type air conditioner |
| KR100423970B1 (en) * | 2001-11-24 | 2004-03-22 | 삼성전자주식회사 | Air conditioner and control method thereof |
| JP2004205143A (en) * | 2002-12-26 | 2004-07-22 | Fujitsu General Ltd | Control system for multi-air-conditioner |
| JP4316933B2 (en) * | 2003-06-03 | 2009-08-19 | 東芝キヤリア株式会社 | Air conditioner |
-
2005
- 2005-10-21 KR KR1020050099681A patent/KR101253231B1/en not_active IP Right Cessation
- 2005-12-30 CN CNB2005101339856A patent/CN100501258C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070043416A (en) | 2007-04-25 |
| KR101253231B1 (en) | 2013-04-16 |
| CN1952511A (en) | 2007-04-25 |
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