CN101986050A - Method for controlling air-conditioner in variable volume modular unit - Google Patents
Method for controlling air-conditioner in variable volume modular unit Download PDFInfo
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- CN101986050A CN101986050A CN 201010280622 CN201010280622A CN101986050A CN 101986050 A CN101986050 A CN 101986050A CN 201010280622 CN201010280622 CN 201010280622 CN 201010280622 A CN201010280622 A CN 201010280622A CN 101986050 A CN101986050 A CN 101986050A
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Abstract
The invention discloses a method for controlling an air-conditioner in a variable volume modular unit. The method is characterized in that when the air-conditioner runs under the condition that the total load of the air-conditioner is less than the full load, and all units run under a load state with a high energy efficiency ratio, only if the energy consumption required for closing one or more modules is smaller than the energy consumption required for running all the modules at a high energy efficiency ratio due to undersized total load of the air conditioner. In the method for controlling the air-conditioner in the variable volume modular unit, the modules run at the volume with the high energy efficiency ratio on the basis of considering the adjustable volume and have low energy consumption.
Description
Technical field
The present invention relates to air-conditioning control field, be meant a kind of varying capacity module unit air conditioning control method specifically.
Background technology
Wind-cooled cold-water unit in the varying capacity module unit is widely used in commercial occasions such as hotel, office building at present, and the wind-cooled cold-water unit can module combinations, the water route is shared, and this wind-cooled cold-water unit is called the air cooling module unit again.Single air cooling module machine set system has adjustable refrigeration system of load and the uncontrollable refrigeration system of load.Adjustable refrigeration system of loading is at present mainly by the system of two or more compressor parallels or the system of employing variable-displacement compressor (as frequency-changeable compressor), in this system, condenser and evaporimeter are by complete machine load coupling, when the unit operation at part load, its Energy Efficiency Ratio is high a lot of during just than oepration at full load.
When a plurality of air cooling module units are used in combination and unit does not need oepration at full load when only needing 50% load; common control model is to have only the unit of half in oepration at full load; second half is in stopped status; this just can't bring into play the energy-conserving action of the system of Load Regulation; and the pressure during oepration at full load is higher; electric current is bigger, and reliability is also than sub-load difference.
When other forms of varying capacity module unit uses, also there is above problem, in use in the past, only paid close attention to the adjustable function of its capacity usually, but ignored and utilized the adjustable characteristics of capacity and reach purpose of energy saving with a kind of scheduling mode preferably.And in the actual use of air-conditioning, most of the time all only needs operation at part load in 1 year, thereby has the problem of efficiency underutilization.
The full load of being mentioned among the present invention is meant the rated value of module unit nominal, i.e. the load value of module unit full load.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of Energy Efficiency Ratio higher varying capacity module unit air conditioning control method.
Technical solution of the present invention provides following a kind of varying capacity module unit air conditioning control method.
A kind of varying capacity module unit air conditioning control method during less than running at full capacity, is regulated the load of each module in the varying capacity module unit with overall Energy Efficiency Ratio the best as the control target at the air-conditioning total load.
Adopt above scheme on the adjustable basis of consideration capacity, to select to regulate the load of each module in the varying capacity module unit as the control target with overall Energy Efficiency Ratio the best, guarantee that unit is in the most energy-conservation state all the time, thereby in pondage, reach with the purpose of higher energy efficiency than operation.
As preferably, each module in the described varying capacity module unit comprises the compressor of at least two parallel connections, regulates the load of each module in the varying capacity module unit during less than running at full capacity in the following manner at the air-conditioning total load:
Earlier the compressor in one of them module is shut down; if the total load of this moment is littler; again with the compressor shutdown in the another one module; in all modules, all there is a compressor to shut down; if this moment, total load was also little; close another compressor in each module more one by one, i.e. the loop stop one by one of compressor in all modules, shutting down in each module of back that the quantity of compressor shutdown differs is 1 or 2.
Because the varying capacity module unit of this mode is the shared condenser of multiple compressors and an evaporimeter, energy consumption is higher when running at full capacity, and the compressor start quantity of each module when reducing its energy consumption situation can improve on the contrary, so this control mode is more energy-conservation.
As preferably, each module in the described varying capacity module unit comprises at least one frequency-changeable compressor, regulates the load of each module in the varying capacity module unit during less than running at full capacity in the following manner at the air-conditioning total load:
Earlier with each module of module unit in the running energy consumption situation storage in following time of various capacity, at the air-conditioning total load during less than running at full capacity, calculate according to the total load of this moment and to make the module unit method of operation of overall Energy Efficiency Ratio the best, and turn round according to the method for operation that calculates.
Because the varying capacity module unit of this mode is the shared condenser of multiple compressors and an evaporimeter, energy consumption is higher when running at full capacity, because the energy consumption situation of each module of module unit under various capacity stored, when adjusting capacity, needs can select the higher method of operation of overall Energy Efficiency Ratio, so this control mode Energy Efficiency Ratio is higher by calculating.
Description of drawings
Fig. 1 is the related varying capacity module machine pack module annexation schematic diagram of varying capacity module unit air conditioning control method of the present invention.
Fig. 2 is the flow chart of steps that DC frequency-changing of the present invention freely drags starting of air conditioner control method embodiment one.
Fig. 3 is the flow chart of steps that DC frequency-changing of the present invention freely drags starting of air conditioner control method embodiment two.
The specific embodiment
The specific embodiment of the present invention is described in detail technical scheme of the present invention for better illustrating below in conjunction with accompanying drawing.
As shown in Figure 1, the varying capacity module unit that the present invention relates to comprises the module that a plurality of capacity are adjustable, and each module all is connected and receives the control and the scheduling of control module with control module.
Embodiment one:
Comprise two compressors in each module in the described varying capacity module unit, a condenser and an evaporimeter, in use, because the adjusting of the capacity of module reduces by half and realizes by closing one of them compressor realization capacity, when load is low, earlier the wherein compressor in the individual module is closed rather than two compressor Close Alls in the module and two compressors in the other module are all turned round wherein, for example: if load when having only fully loaded 50%, then be that a compressor in two compressors in each module is closed with the realization capacity purpose that reduces by half, rather than with the compressor Close All in the module of half and the compressor in second half module is all opened.
As shown in following table, be certain model air cooling module unit, two compressor parallel systems, the Energy Efficiency Ratio correction data when different load during refrigerating state.
| Load | 100％ | 50％ |
| Environment temperature (dry bulb/wet bulb) | 35℃/24℃ | 35℃/24℃ |
| The water-side heat leaving water temperature | 7℃ | 7℃ |
| Discharge | 10.8m 3/h | 10.8m 3/h |
| Energy Efficiency Ratio | 2.9 | 3.4 |
Embodiment two:
Comprise at least one frequency-changeable compressor in each module in the described varying capacity module unit; a condenser and an evaporimeter; because the capacity of frequency-changeable compressor is can be continuously adjustable in its range of capacity; thereby when using; the energy consumption situation of each module compressor when the various capacity measured and stored; when to such an extent as to the air-conditioning total load needs the compressor pondage in the module during less than running at full capacity or shuts down; when needing the adjusting module method of operation; load according to this moment calculates the most energy-conservation mode of module machine group operation, and turns round according to the most energy-conservation mode that calculates.
As shown in following table, certain model DC frequency-changing unit, the Energy Efficiency Ratio correction data when different load during refrigerating state.
| Load | 100％ | 75％ | 50％ | 25％ |
| Outside temperature (dry bulb) | 27℃ | 27℃ | 27℃ | 27℃ |
| Indoor temperature (dry bulb/wet bulb) | 27℃/19℃ | 27℃/19℃ | 27℃/19℃ | 27℃/19℃ |
| Energy Efficiency Ratio | 3.17 | 3.43 | 3.14 | 2.77 |
It is the control mode that operates in when needing to reduce load under the big load condition that above-mentioned control illustrates just that varying capacity module unit begins, when if the module unit need increase load than low load operation the time, above-mentioned control mode is increased capacity in opposite mode one by one to individual module in execution or the unlatching compressor gets final product.
Should specify that at this realization of the control method that the present invention mentioned is that the controller by prior art adopts software programming to realize, the adjusting of described capacity is conventional prior art also with control, so do not give unnecessary details at this.
In the above-described embodiments, preferred forms of the present invention is described, obviously, under inventive concept of the present invention, still can make a lot of variations, module in the varying capacity module unit air-conditioning as described can be to comprise two or two above common compressor, and module also can be one or more frequency-changeable compressor, and module can also be the combination of common compressor and frequency-changeable compressor.Key of the present invention is, selects the most energy-conservation drive manner running according to the energy consumption situation under various capacity situation when capacity regulating.At this, should illustrate that any change of being made all will fall within the scope of protection of the present invention under inventive concept of the present invention.
Claims (3)
1. varying capacity module unit air conditioning control method is characterized in that: during less than running at full capacity, regulate the load of each module in the varying capacity module unit with overall Energy Efficiency Ratio the best as the control target at the air-conditioning total load.
2. varying capacity module unit air conditioning control method according to claim 1, it is characterized in that: each module in the described varying capacity module unit comprises the compressor of at least two parallel connections, regulates the load of each module in the varying capacity module unit during less than running at full capacity in the following manner at the air-conditioning total load:
Earlier the compressor in one of them module is shut down; if the total load of this moment is littler; again the compressor in the another one module is shut down; in all modules, all there is a compressor to shut down; if this moment, total load was also little, close another compressor in each module more one by one.
3. varying capacity module unit air conditioning control method according to claim 1, it is characterized in that: each module in the described varying capacity module unit comprises at least one frequency-changeable compressor, regulates the load of each module in the varying capacity module unit during less than running at full capacity in the following manner at the air-conditioning total load:
Earlier with each module of module unit in the running energy consumption situation storage in following time of various capacity, at the air-conditioning total load during less than running at full capacity, calculate according to the total load of this moment and to make the module unit method of operation of overall Energy Efficiency Ratio the best, and turn round according to the method for operation that calculates.
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| CN 201010280622 CN101986050B (en) | 2010-09-09 | 2010-09-09 | Method for controlling air-conditioner in variable volume modular unit |
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| CN 201010280622 CN101986050B (en) | 2010-09-09 | 2010-09-09 | Method for controlling air-conditioner in variable volume modular unit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353122A (en) * | 2011-09-26 | 2012-02-15 | Tcl空调器(中山)有限公司 | Modular multi-connection control method and system |
| CN103291592A (en) * | 2013-06-04 | 2013-09-11 | 宁波奥克斯电气有限公司 | Control method of output capacity of frequency-variable multi-coupled compressors |
| CN105444482A (en) * | 2015-12-11 | 2016-03-30 | 重庆美的通用制冷设备有限公司 | Water-cooling water chilling unit and energy-saving operation control method thereof |
| CN106196511A (en) * | 2016-08-23 | 2016-12-07 | 广州市设计院 | Can the method for Effec-tive Function and unit type air conditioner under full load rate |
| CN111089333A (en) * | 2019-12-24 | 2020-05-01 | 珠海格力电器股份有限公司 | Heating, ventilating and air conditioning system and control method, device, equipment and storage medium thereof |
| CN113203231A (en) * | 2021-05-07 | 2021-08-03 | 广州市华德工业有限公司 | Energy adjusting method and device of unit and unit |
| CN113324318A (en) * | 2020-02-28 | 2021-08-31 | 青岛海尔中央空调有限公司 | Control method of air-cooled modular unit |
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| CN2924423Y (en) * | 2006-07-14 | 2007-07-18 | 江苏兆胜空调有限公司 | Marin modularized water source heat pump water cooling machine set and compressed condensing machine set |
| CN201100804Y (en) * | 2007-09-30 | 2008-08-13 | 无锡同方人工环境有限公司 | Modular water cooling unit with direct parallel installation |
| CN101846413A (en) * | 2010-05-26 | 2010-09-29 | 南车株洲电力机车有限公司 | Unitary air-conditioning unit of subway vehicle and control method thereof |
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| JP2003139455A (en) * | 2001-10-31 | 2003-05-14 | Toshiba Corp | Refrigerating machine/showcase control system and control method, and program |
| CN2924423Y (en) * | 2006-07-14 | 2007-07-18 | 江苏兆胜空调有限公司 | Marin modularized water source heat pump water cooling machine set and compressed condensing machine set |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353122A (en) * | 2011-09-26 | 2012-02-15 | Tcl空调器(中山)有限公司 | Modular multi-connection control method and system |
| CN103291592A (en) * | 2013-06-04 | 2013-09-11 | 宁波奥克斯电气有限公司 | Control method of output capacity of frequency-variable multi-coupled compressors |
| CN103291592B (en) * | 2013-06-04 | 2015-05-20 | 宁波奥克斯电气有限公司 | Control method of output capacity of frequency-variable multi-coupled compressors |
| CN105444482A (en) * | 2015-12-11 | 2016-03-30 | 重庆美的通用制冷设备有限公司 | Water-cooling water chilling unit and energy-saving operation control method thereof |
| CN106196511A (en) * | 2016-08-23 | 2016-12-07 | 广州市设计院 | Can the method for Effec-tive Function and unit type air conditioner under full load rate |
| CN111089333A (en) * | 2019-12-24 | 2020-05-01 | 珠海格力电器股份有限公司 | Heating, ventilating and air conditioning system and control method, device, equipment and storage medium thereof |
| CN113324318A (en) * | 2020-02-28 | 2021-08-31 | 青岛海尔中央空调有限公司 | Control method of air-cooled modular unit |
| WO2021169060A1 (en) * | 2020-02-28 | 2021-09-02 | 青岛海尔中央空调有限公司 | Method for controlling air-cooling module unit |
| CN113324318B (en) * | 2020-02-28 | 2022-10-25 | 青岛海尔中央空调有限公司 | Control method of air-cooled modular unit |
| CN113203231A (en) * | 2021-05-07 | 2021-08-03 | 广州市华德工业有限公司 | Energy adjusting method and device of unit and unit |
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| CN101986050B (en) | 2013-03-06 |
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Address after: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee after: NINGBO AUX ELECTRIC CO., LTD. Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Electric Co., Ltd. |