CN1677026A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN1677026A CN1677026A CN 200510005632 CN200510005632A CN1677026A CN 1677026 A CN1677026 A CN 1677026A CN 200510005632 CN200510005632 CN 200510005632 CN 200510005632 A CN200510005632 A CN 200510005632A CN 1677026 A CN1677026 A CN 1677026A
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- CN
- China
- Prior art keywords
- compressor
- mentioned
- priority
- control device
- refrigerator
- Prior art date
- 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
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
Landscapes
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The refrigerating machine 1 comprises the plurality of compressors 2A-2C arranged in parallel with each other, and a controller 8 for controlling the operation of each of the compressors 2A-2C. The controller 8 has an automatic switching mode for determining the number of compressors 2A-2C to be operated in accordance with load, operating each of the compressors 2A-2C on the basis of specific priority, and changing the priority of the compressor of longest operation time and the compressor of shortest operation by a specific period.
Description
Technical field
The present invention relates to the refrigerator in a kind of storehouse that for example is used to cool off low temperature gondola, freezer, freezer etc.
Background technology
Past is provided with evaporimeter at this kind low temperature gondola etc., will be by compressor compresses, condensed cold-producing medium supplies to this evaporimeter after with the decompressor decompression by the condenser heat radiation, makes its evaporation, in the storehouse, cool off.In this occasion, compressor and condenser constitute refrigerator as one, are provided with respectively with the low temperature gondola that is arranged in the shop.In addition, in the many especially occasions of the platform number of low temperature gondola, compressor can be tackled big load (freezing load of low temperature gondola side) (for example with reference to patent documentation 1) by being set up in parallel the state setting that many (for example 2～5) connect.
No. the 3301767th, (patent documentation 1) patent
, compressor is determined its operation platform number corresponding to load usually, in the less occasion of load, for example moves 1, then along with load rises, will move the platform number and increase to 2, the control of 3 tablelands.In this occasion, which compressor is the priority that pre-determines the operation compressor in the past (move at first, next append operation any compressor), for this reason, the compressor that the running time of the high i.e. compressor of initial operation of priority and priority are low is compared elongated singularly, fault increases, and has the problem that reaches the life-span too early simultaneously.
Summary of the invention
The present invention makes in order to solve technical problem in the past, and its purpose is to make equalization running time of each compressor in the refrigerator of the compressor with many of connections arranged side by side.
Refrigerator of the present invention has many compressor of connection arranged side by side, it is characterized in that: control device with operation of each compressor of control, this control device is determined the operation platform number of compressor corresponding to load, move each compressor according to predetermined priority, simultaneously, has the auto transformation mode of priority every the shortest compressor of the longest compressor of conversion operation time scheduled period and running time.
The refrigerator of the 2nd invention has such feature on the basis of foregoing invention: control device has the positive and negative manual mode of at random changing above-mentioned priority.
The refrigerator of the 3rd invention has such feature on basis of above-mentioned each invention: control device has display unit, is shown about the information during before the conversion next time of auto transformation mode by display unit.
The refrigerator of the 4th invention has such feature on the basis of above-mentioned each invention: control device is by the information of display unit demonstration about present above-mentioned priority.
The refrigerator of the 5th invention has such feature on the basis of above-mentioned each invention: each compressor has same capability.
In the present invention, refrigerator has many compressor of connection arranged side by side, wherein, control device with operation of each compressor of control, this control device is determined the operation platform number of compressor corresponding to load, move each compressor according to predetermined priority, simultaneously, have the auto transformation mode of priority every the shortest compressor of the longest compressor of conversion operation time scheduled period and running time.So, can automatically make equalization running time of each compressor.Like this, can avoid specific compressor to break down or the problem of lifetime.
As the 2nd invention, on the basis of foregoing invention, control device has the positive and negative manual mode of at random changing above-mentioned priority.Therefore, available manual switch is positive and negative corresponding to the priority of situation operation compressor, and convenience increases.
As the 3rd invention, on basis of above-mentioned each invention, control device has display unit, is shown about the information during before the conversion next time of auto transformation mode by display unit.Therefore, the user can easily confirm running priority order conversion automatically during which type of of compressor.
As the 4th invention, on the basis of above-mentioned each invention, control device is by the information of display unit demonstration about present above-mentioned priority, so the user can be easily in the priority of confirming present compressor.
Particularly have the occasion of same capability at each compressor as the 5th invention, the present invention produces very large effect to equalization running time of each compressor.
Description of drawings
Fig. 1 is the refrigerant loop figure of the refrigerator of the embodiment of the invention.
The specific embodiment
Below, describe form of implementation of the present invention with reference to the accompanying drawings in detail.Fig. 1 is the refrigerant loop figure that has been suitable for the refrigerator 1 of the embodiment of the invention.The refrigerator 1 of embodiment is used for cooling in the storehouse of not shown low temperature gondola, is made of 3 compressor 2A, 2B, 2C and the condenser (radiator) 3 of same capability.Each compressor 2A～2C connects mutually side by side, discharges side at the cold-producing medium of each compressor 2A～2C and connects above-mentioned condenser 3.The expansion valve (decompressor) 4 of unshowned low temperature gondola in the condensation outlet side connection layout of the condenser 3 of refrigerator 1 connects the evaporimeter 6 of low temperature gondola at the outlet side of expansion valve 4.The outlet side of this evaporimeter 6 is connected to the cold-producing medium suction side of each compressor 2A～2C of refrigerator 1, constitutes refrigerant loop.
In addition, be provided for controlling the control device 8 of the operation of each compressor 2A～2C at refrigerator 1.This control device 8 is determined the operation platform number of compressor 2A～2C according to the load of the output judgement low temperature gondola of the pressure sensor 9 of the pressure of the low-pressure side that detects above-mentioned refrigerant loop, moves each compressor 2A～2C by predetermined priority.In addition, at control device 8 attended operation switch (operating units) 11 and display (display unit) 12.
Below by above formation explanation action.Be provided with mode conversion switch at aforesaid operations switch 11,, make control device 8 be transformed into auto transformation mode, manual switch pattern (holotype, anti-pattern) by this mode conversion switch.Then,, the priority of compressor 2A-compressor 2B-compressor 2C is made as positive order here, the priority of compressor 2C-compressor 2B-compressor 2A is made as anti-order.
(1) manual mode (positive order)
At first, above-mentioned manual mode is described.When the operation of the mode conversion switch by console switch 11 was set at holotype with control device 8, the priority that control device 8 will move compressor 2A～2C was made as above-mentioned positive order.In this positive order, control device 8 at first starts and the highest compressor 2A of running priority order, and cold-producing medium is circulated in refrigerant loop.Discharge side by the cold-producing medium after the compressor 2A compression from cold-producing medium and discharge, flow into condenser 3, condensation by condenser 3 heat radiations.By expansion valve 4 throttlings, flow into evaporimeter 6 by these condenser 3 condensed cold-producing mediums, in this place's evaporation.Bring into play cooling effect from drawing evaporation latent heat on every side this moment, is drawn into the cold-producing medium suction side of compressor 2A, circulates.
The ventilation of gas outside above-mentioned condenser 3 is undertaken by not shown pressure fan like this, is carried out air cooling to the gas refrigerant of the HTHP of discharging from compressor 2A.In addition, evaporimeter 6 by the storehouse in the not shown pressure fan of cooling usefulness carry out the circulation of air in the storehouse, make in the storehouse of unshowned in the drawings low temperature gondola thus and carried out the circulating cold air of heat exchange with evaporimeter 6 and cool off.
On the other hand, the low-pressure lateral pressure and the setting value of control device 8 more above-mentioned pressure sensor 9 detected refrigerant loops, when low-pressure lateral pressure rises, when enlarging with the deviation of setting value, judges that the freezing load of low temperature gondola side increases, the platform number of the compressor of operation is increased by 1.In this occasion, because priority is positive order,, bring into operation (adding up to several 2 of operation platform) so except the compressor 2A that has moved, the compressor 2B of ensuing priority also starts.Like this, the internal circulating load of the cold-producing medium that flows in refrigerant loop increases, and cooling capacity rises.Then, when the freezing load of low temperature gondola side further increases, when above-mentioned deviation enlarges, control device 8 increases by 1 with the operation platform number of compressor.That is, in this occasion, priority also owing to be positive order, so except the compressor 2A, the 2B that have moved, the compressor 2C that priority is minimum starts, brings into operation (adding up to several 3 of operation platform).Like this, circulating mass of refrigerant further increases, and cooling capacity improves.
Like this, along with the freezing load increase of low temperature gondola side, the order of pressing compressor 2A-2B-2C increases operation platform number, guarantees the cooling capacity in the storehouse.And along with freezing load reduces, above-mentioned deviation is dwindled, and control device 8 is by stopping compressor 2C earlier with above-mentioned opposite order, and then dwindles deviation, and then compressor 2B also stops.Then, low-pressure lateral pressure descends lowlyer than setting value, thereby compressor 2A is also stopped, and all stops.
(2) manual mode (anti-order)
Below, when the mode conversion switch by console switch 11 was set at anti-pattern with control device 8, the priority that control device 8 is established operation compressor 2A～2C was above-mentioned anti-order.In this anti-order, control device 8 starts and moves the highest compressor 2C of priority in this occasion, and cold-producing medium is circulated in refrigerant loop.Discharge side by the cold-producing medium after the compressor 2C compression from cold-producing medium and discharge, flow into condenser 3, condensation by condenser 3 heat radiations.By expansion valve 4 throttlings, flow into evaporimeter 6 by these condenser 3 condensed cold-producing mediums, in this place's evaporation.This moment from around siphon away evaporation latent heat, bring into play cooling effect, be drawn into the circulation of the cold-producing medium suction side of compressor 2A.Cooling is with above-mentioned same in the storehouse of low temperature gondola.
In addition, the low-pressure lateral pressure and the setting value of control device 8 more above-mentioned pressure sensor 9 detected refrigerant loops, when low-pressure lateral pressure rises, when enlarging with the deviation that sets value, judges that the freezing load of low temperature gondola side increases, further increase the operation platform number of 1 compressor.In this occasion, because priority is anti-order, so except the compressor 2C that has moved, the compressor 2B that priority is taken second place also starts and brings into operation (adding up to several 2 of operation platform).Like this, the internal circulating load of the cold-producing medium that flows in refrigerant loop increases, and cooling capacity improves.When the freezing load of low temperature commodity array cupboard side further increases, when above-mentioned deviation enlarges, control device 8 increases by 1 again with the operation platform number of compressor.That is, the priority of this occasion also is anti-order, so on the basis of the compressor 2C, the 2B that have moved, the minimum compressor 2A of starting priority brings into operation (adding up to several 3 of operation platform).Like this, circulating mass of refrigerant further increases, and cooling capacity improves.
Like this, corresponding to the freezing load increase of low temperature gondola side, the order of pressing compressor 2C-2B-2A increases operation platform number, guarantees the cooling capacity in the storehouse.Along with freezing load reduces, above-mentioned deviation is dwindled, control device 8 further dwindles as deviation by stopping compressor 2A earlier with above-mentioned opposite order, and then compressor 2B also stops.Then, low-pressure lateral pressure is lower than setting value, thereby compressor 2C is also stopped, and all stops.
(3) auto transformation mode
Below, when the operation of the mode conversion switch by console switch 11 was set at auto transformation mode with control device 8, the priority that control device 8 will move compressor 2A～2C was made as above-mentioned positive order earlier.Same during the positive order of the action after this and the occasion of above-mentioned manual mode.Control device 8 begins accumulative total from operation of this positive order, and when through scheduled period for example 10 days the time, this is transformed into above-mentioned anti-order with priority.After this action is identical with the anti-order of the occasion of above-mentioned manual mode.Then, after operation of this anti-order begins, during through 10 days, priority is turned back to positive order once more, after this carried out This move repeatedly every 10 days.
Promptly, (occasion in positive order is compressor 2A to control device 8 every the longest compressor of 10 days conversion operation time, occasion in anti-order is compressor 2C) with the priority of the shortest compressor running time (occasion in positive order is compressor 2C, is compressor 2A in the occasion of anti-order).Like this, can be automatically with equalization running time of each compressor 2A～2C, can avoid breaking down or the problem of its lifetime at specific compressor (occasion in positive order is the longest compressor 2A running time, is the longest compressor 2C running time in the occasion of anti-order).This produces very large effect in the occasion that particularly capacity of each compressor 2A～2C is identical as embodiment.
In addition, control device 8 is by the predetermined operation of console switch 11, will with next conversion of auto transformation mode before during relevant information (for example several days after change) be shown in display 12.Like this, the user can easily confirm running priority order conversion automatically during which type of of compressor 2A～2C.In addition, control device 8 operates in display 12 by console switch 11 predetermined and shows that by predetermined symbol etc. the information about present priority promptly still is anti-order for positive order now.Like this, the user can easily confirm the running priority order of present compressor 2A～2C.
In the above-described embodiments, the occasion of the compressor that uses 3 has been described, but has been not limited thereto, connected side by side and use occasion the present invention of the compressor more than 2 or 4 or 4 also effective.
Claims (5)
1. refrigerator has many compressor of connection arranged side by side, it is characterized in that:
Control device with operation of above-mentioned each compressor of control,
This control device is determined the operation platform number of above-mentioned compressor corresponding to load, according to predetermined above-mentioned each compressor of priority operation, simultaneously, has the auto transformation mode of priority every the shortest above-mentioned compressor of the longest above-mentioned compressor of conversion operation time scheduled period and running time.
2. refrigerator according to claim 1 is characterized in that: above-mentioned control device has the positive and negative manual mode of at random changing above-mentioned priority.
3. refrigerator according to claim 1 and 2 is characterized in that: above-mentioned control device has display unit, is shown about the information during before the conversion next time of above-mentioned auto transformation mode by above-mentioned display unit.
4. refrigerator according to claim 3 is characterized in that: above-mentioned control device is via the information of above-mentioned display unit demonstration about current above-mentioned priority.
5. according to claim 1,2,3 or 4 described refrigerators, it is characterized in that: above-mentioned each compressor has same capability.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004094907A JP2005282896A (en) | 2004-03-29 | 2004-03-29 | Refrigerating machine |
| JP2004094907 | 2004-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1677026A true CN1677026A (en) | 2005-10-05 |
| CN100381771C CN100381771C (en) | 2008-04-16 |
Family
ID=35049686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100056328A Expired - Fee Related CN100381771C (en) | 2004-03-29 | 2005-01-24 | Refrigerator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005282896A (en) |
| CN (1) | CN100381771C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329131B (en) * | 2007-06-19 | 2010-06-02 | 三洋电机株式会社 | Control device of refrigerator |
| CN102261778A (en) * | 2010-05-27 | 2011-11-30 | 三洋电机株式会社 | Control method of running machine number of absorption cold warm water machine and device thereof |
| CN103307698A (en) * | 2012-03-16 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner system, and control method and device thereof |
| CN107036351A (en) * | 2017-04-28 | 2017-08-11 | 依米康冷元节能科技（上海）有限公司 | The control method and device of multi-machine heads handpiece Water Chilling Units |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8291720B2 (en) * | 2009-02-02 | 2012-10-23 | Optimum Energy, Llc | Sequencing of variable speed compressors in a chilled liquid cooling system for improved energy efficiency |
| KR101624039B1 (en) * | 2014-08-22 | 2016-05-24 | 엘지전자 주식회사 | Chiller system and chiller set |
| KR102366592B1 (en) * | 2015-09-24 | 2022-02-23 | 엘지전자 주식회사 | Chiller |
| FR3077191B1 (en) * | 2018-01-29 | 2020-01-03 | Y2I Finances | EXHIBITION FURNITURE FOR PRODUCTS PRESENTATION |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3672720B2 (en) * | 1998-01-28 | 2005-07-20 | 松下冷機株式会社 | Vending machine cooling system |
| KR100499028B1 (en) * | 1998-09-16 | 2005-09-02 | 삼성전자주식회사 | How to control the operation of the refrigerator |
| JP4182327B2 (en) * | 2002-06-26 | 2008-11-19 | 株式会社富士通ゼネラル | Control method of air conditioner |
| KR100504900B1 (en) * | 2003-10-10 | 2005-07-29 | 엘지전자 주식회사 | Airconditioner and his balance oil driving control method equipped with forth compressor |
| KR100649600B1 (en) * | 2004-05-28 | 2006-11-24 | 엘지전자 주식회사 | Compressor Control Method of Air-conditioner Having Multi-Compressor |
| CN100451900C (en) * | 2004-06-10 | 2009-01-14 | 上海施耐德日盛压缩机有限公司 | Intelligent control method for air compressor |
-
2004
- 2004-03-29 JP JP2004094907A patent/JP2005282896A/en active Pending
-
2005
- 2005-01-24 CN CNB2005100056328A patent/CN100381771C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329131B (en) * | 2007-06-19 | 2010-06-02 | 三洋电机株式会社 | Control device of refrigerator |
| CN102261778A (en) * | 2010-05-27 | 2011-11-30 | 三洋电机株式会社 | Control method of running machine number of absorption cold warm water machine and device thereof |
| CN102261778B (en) * | 2010-05-27 | 2013-10-02 | 三洋电机株式会社 | Control method of running machine number of absorption cold warm water machine and device thereof |
| CN103307698A (en) * | 2012-03-16 | 2013-09-18 | 珠海格力电器股份有限公司 | Air conditioner system, and control method and device thereof |
| CN107036351A (en) * | 2017-04-28 | 2017-08-11 | 依米康冷元节能科技（上海）有限公司 | The control method and device of multi-machine heads handpiece Water Chilling Units |
| CN107036351B (en) * | 2017-04-28 | 2019-06-25 | 依米康冷元节能科技（上海）有限公司 | The control method and device of multi-machine heads water cooler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005282896A (en) | 2005-10-13 |
| CN100381771C (en) | 2008-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20140124 |