CN105805995A - Independent control system for multiple refrigerators sharing condensing unit - Google Patents
Independent control system for multiple refrigerators sharing condensing unit Download PDFInfo
- Publication number
- CN105805995A CN105805995A CN201610276812.8A CN201610276812A CN105805995A CN 105805995 A CN105805995 A CN 105805995A CN 201610276812 A CN201610276812 A CN 201610276812A CN 105805995 A CN105805995 A CN 105805995A
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- Prior art keywords
- refrigeration
- refrigerator
- relay
- control system
- unit
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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
- F25B49/027—Condenser control arrangements
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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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses an independent control system for multiple refrigerators sharing a condensing unit. The independent control system comprises a refrigerating system and an electronic control system. The refrigerating system comprises a refrigerating compressor, a condenser and at least two same-structure refrigerator refrigerating units. Each refrigerator refrigerating unit comprises an evaporator, an expansion valve and a refrigerating electromagnetic valve which are in series connection. The electronic control system comprises a refrigerating compressor electronic control unit and at least two same-structure refrigerator electronic control units. Each refrigerator electronic control unit comprises a temperature controller, a defroster and a refrigerating relay. The independent control system has the advantages that independent control over the multiple refrigerators sharing the condensing unit is achieved; the effect that the refrigerator temperature of each refrigerator can reach the designed temperature range is ensured; in addition, starting and stopping of each refrigerator can be controlled through a respective refrigerating switch and the other refrigerators are not influenced, so that the problems of substandard temperature, mutual interference and inconvenient starting and stopping of all the refrigerators are solved very well, and meanwhile, the purpose of electric energy saving is also achieved.
Description
Technical field
The present invention relates to multiple stage refrigerator and share freezing machine set control system, especially relate to multiple stage refrigerator and share condensation unit autonomous control system.
Background technology
At present, when multiple stage refrigerator shares an outdoor condensation unit, temperature sensor for measuring cabinet gentleness defrosting temperature is placed in the refrigerator specified, and internal (this refrigerator specified is hereinafter referred to as main cabinet, other refrigerator is referred to as from cabinet), temperature controller in electric cabinet controls the start and stop of compressor by the temperature in main cabinet, and from the start-stop accepting compressor that cabinet can only be passive, thus it cannot be guaranteed that reach the temperature range of design from the temperature in cabinet, preserving of article is produced certain impact.If it addition, when main cabinet artificially shuts down, the then compressor work as usual when temperature height in main cabinet, acceptor's cabinet shutdown impact, causes that main cabinet is equivalent to be become direct-cooled cabinet by air cooling cabinet；If from cabinet artificially shut down time, in like manner from cabinet especially on start/stop of compressor without impact, at this moment also correspond to be become direct-cooled cabinet by air cooling cabinet from cabinet, it is serious and cause power consumption that long-play will result in evaporimeter frosting.All disable to all refrigerators, then must make the shutdown of all of refrigerator and have to be off the main switch (power circuit breaker) of electric cabinet.
Summary of the invention
Present invention aim at providing a kind of multiple stage refrigerator to share condensation unit autonomous control system.
For achieving the above object, the present invention takes following technical proposals:
Multiple stage refrigerator of the present invention shares condensation unit autonomous control system, including refrigeration system and electric-control system,
The refrigerator refrigeration unit that described refrigeration system includes refrigeration compressor, condenser is identical with at least two structure；Described refrigerator refrigeration unit is made up of the vaporizer being in series, expansion valve and refrigeration electromagnetic valve, the described refrigeration electromagnetic valve import of each refrigerator refrigeration unit connects with described condensator outlet, the described evaporator outlet of each refrigerator refrigeration unit and described refrigeration compressor inlet communication, condenser inlet and refrigeration compressor outlet；
Described electric-control system includes the refrigerator ECU that refrigeration compressor ECU is identical with at least two structure；Described refrigerator ECU includes temperature controller, frost removal and refrigeration relay, the power input of described temperature controller is connected with the leading-out terminal of power circuit breaker by the switch that freezes, and described frost removal and refrigeration relay are connected with the leading-out terminal of described power circuit breaker respectively through described refrigeration switch；The temperature sensor contact switch of temperature controller is series in the power circuit of described refrigeration relay, and the defrosting sensor contact switch series of temperature controller is coupled in the power circuit of described frost removal；Described refrigeration compressor ECU includes refrigeration compressor, condensation fan and refrigeration control unit, and the power input of described refrigeration compressor and condensation fan is connected with the leading-out terminal of described power circuit breaker by contactless contactor；Described refrigeration control unit includes first, second normally opened contact that described catalyst drives the relay that freezes of coil, the refrigeration solenoid-driven coil of described refrigerator refrigeration unit and described refrigerator ECU；First normally opened contact of described refrigeration relay is connected with the leading-out terminal of power circuit breaker by cooling activation switch with after refrigeration solenoid-driven coils connected in series, and the second normally opened contact of refrigeration relay is driven with catalyst after coils connected in series and is connected with the leading-out terminal of power circuit breaker by described cooling activation switch.
Refrigeration relay and the two ends of temperature sensor contact switch series circuit in described refrigerator ECU are parallel with evaporation fan.
The invention has the advantages that realizing multiple stage refrigerator shares the independence control of a condensation unit.Ensure that the cabinet temperature of every refrigerator is attained by the temperature range of design；Additionally the opening of every refrigerator, shut down and all by respective refrigeration on-off control, and other refrigerator can not affected, well solve the problem that each refrigerator temperature is not up to standard, interfere and open, shut down inconvenience, also function to the purpose of saves energy simultaneously.
Accompanying drawing explanation
Fig. 1 is the refrigeration system principle schematic of the embodiment of the present invention.
Fig. 2 is the electric-control system principle schematic of the embodiment of the present invention.
Detailed description of the invention
The present invention is existing shares the autonomous control system that a condensation unit is constituted with two refrigerators, is described in detail:
As it is shown in figure 1, the first, second refrigerator refrigeration unit 3,4 that described refrigeration system includes refrigeration compressor 1, condenser 2 is identical with two structures；First refrigerator refrigeration unit 3 is made up of the vaporizer 3.1 being in series, expansion valve 3.2 and refrigeration electromagnetic valve 3.3, second refrigerator refrigeration unit 4 is made up of the vaporizer 4.1 being in series, expansion valve 4.2 and refrigeration electromagnetic valve 4.3, refrigeration electromagnetic valve 3.3,4.3 import of first, second refrigerator refrigeration unit 3,4 and condenser 2 outlet, vaporizer 3.1,4.1 outlet and refrigeration compressor 1 inlet communication of first, second refrigerator refrigeration unit 3,4, condenser 2 import and refrigeration compressor 1 outlet.
As in figure 2 it is shown, described electric-control system includes the refrigerator ECU 6,7 that refrigeration compressor ECU 5 is identical with two structures；First refrigerator ECU 6 includes temperature controller 6.1, frost removal 6.2 and refrigeration relay K 1, the power input of temperature controller 6.1 is connected by the leading-out terminal of the first refrigeration switch ZK1 and power circuit breaker DL, and frost removal 6.2 is connected respectively through the leading-out terminal of refrigeration switch ZK1 and power circuit breaker DL with refrigeration relay K 1；The contact switch r1 of the temperature sensor R1 of temperature controller 6.1 is series in the power circuit of refrigeration relay K 1, is parallel with evaporation fan 6.3 at the two ends of refrigeration relay K 1 and the contact switch r1 series circuit of temperature sensor R1；The contact switch r2 of the defrosting sensor R2 of temperature controller 6.1 is series in the power circuit of frost removal 6.2.
Second refrigerator ECU 7 includes temperature controller 7.1, frost removal 7.2 and refrigeration relay K 2, the power input of temperature controller 7.1 is connected by the leading-out terminal of the second refrigeration switch ZK2 and power circuit breaker DL, and frost removal 7.2 is connected respectively through the leading-out terminal of refrigeration switch ZK2 and power circuit breaker DL with refrigeration relay K 2；The contact switch r3 of the temperature sensor R3 of temperature controller 7.1 is series in the power circuit of refrigeration relay K 2, is parallel with evaporation fan 7.3 at the two ends of refrigeration relay K 2 and the contact switch r3 series circuit of temperature sensor R3；The contact switch r4 of the defrosting sensor R4 of temperature controller 7.1 is series in the power circuit of frost removal 7.2.
As shown in Figure 1, 2, described refrigeration compressor ECU includes refrigeration compressor 1, condensation fan 8 and refrigeration control unit 9, and the power input of refrigeration compressor 1 and condensation fan 8 is connected by the leading-out terminal of contactless contactor KM1 and power circuit breaker DL；Described refrigeration control unit is driven driving coil ZF1, ZF2 of refrigeration electromagnetic valve 3.3,4.3 in coil KM, first, second refrigerator refrigeration unit 3,4 by catalyst, with in the first refrigerator ECU 6 freeze relay K 1 first, second normally opened contact K11, K12, and in the second refrigerator ECU 7 freeze relay K 2 first, second normally opened contact K21, K22 composition；First normally opened contact K11 of refrigeration the relay K 1 and driving coil ZF1 of refrigeration electromagnetic valve 3.3 constitutes the first series arm；Coil KM is driven to constitute the second series arm after connecting with catalyst after second normally opened contact K12 of refrigeration relay K 1 and the first normally opened contact K21 parallel connection of refrigeration relay K 2；Second normally opened contact K22 of refrigeration the relay K 2 and driving coil ZF2 of refrigeration electromagnetic valve 4.3 constitutes the 3rd series arm；It is connected by the leading-out terminal of cooling activation switch QD and power circuit breaker DL after described first, second, third series arm parallel connection.
Operation principle of the present invention is summarized as follows:
First the power circuit breaker DL in electric cabinet is closed, then the cooling activation on electric cabinet is switched QD Guan Bi.
When the first refrigerator needs refrigeration work, first the first refrigeration switch ZK1 of the first refrigerator ECU 6 is closed, temperature controller 6.1 energising is started working, refrigeration relay K 1 obtains electric simultaneously, it is first years old, second normally opened contact K11, K12 closes, the refrigeration electromagnetic valve 3.3 of the first refrigerator refrigeration unit 3 drives coil ZF1 and catalyst to drive coil KM to obtain electric, contactless contactor KM1 adhesive simultaneously opened by the refrigeration electromagnetic valve 3.3 of the first refrigerator refrigeration unit 3, refrigeration compressor 1 is started working, cold-producing medium enters the vaporizer 3.1 of the first refrigerator refrigeration unit 3 by the electromagnetic valve 3.3 that freezes, first refrigerator starts refrigeration work.
At the first refrigerator refrigeration work therebetween, if desired during the second refrigerator refrigeration work, close the second refrigeration switch ZK2 of the second refrigerator ECU 7, temperature controller 7.1 energising is started working, refrigeration relay K 2 obtains electric simultaneously, its first, second normally opened contact K21, K22 close, the refrigeration electromagnetic valve 4.3 of the second refrigerator refrigeration unit 4 drives coil ZF2 and catalyst to drive coil KM to obtain electric, the refrigeration electromagnetic valve 4.3 of the second refrigerator refrigeration unit 4 open and contactless contactor KM1 owing to being attracting state when the first refrigerator refrigeration；Now cold-producing medium enters the vaporizer 4.1 of the second refrigerator refrigeration unit 4 by the electromagnetic valve 4.3 that freezes, and the second refrigerator starts refrigeration work.
During first, second refrigerator simultaneously refrigeration work; if the first refrigerator temperature reaches the shutdown temperature set; then the contact switch r1 of the temperature sensor R1 of temperature controller 6.1 disconnects; refrigeration relay K 1 dead electricity; normally opened contact K11, K12 of refrigeration relay K 1 disconnect; the refrigeration electromagnetic valve 3.3 of the first refrigerator refrigeration unit 3 drives coil ZF1 dead electricity, and refrigeration electromagnetic valve 3.3 cuts out stopping and providing cold-producing medium to vaporizer 3.1, and the first refrigerator stops refrigeration.Now the second refrigerator is also in refrigeration, and catalyst drives the first positive often-have-electricity of normally opened contact K21 of the coil KM refrigeration relay K 2 by closing, refrigeration compressor 1 still normal operation.Therefore, the first refrigerator stops refrigeration work whether without influence on the normal refrigeration work of the second refrigerator, and in like manner, whether the second refrigerator stops refrigeration work without the normal refrigeration work affecting the first refrigerator.
When first, second refrigerator all reaches the shutdown temperature set; then the temperature controller 6.1,7.1 of first, second refrigerator ECU 6,7 all sends stopping cooling signals; that is: the contact switch r3 of the contact switch r1 and temperature sensor R3 of temperature sensor R1 disconnects; refrigeration relay K 1, K2 dead electricity; normally opened contact K11, K12, K21, K22 disconnect; refrigeration electromagnetic valve 3.3,4.3 drives coil ZF1, ZF2 and catalyst to drive coil KM dead electricity; contactless contactor KM1 disconnects, and refrigeration compressor 1 power-off quits work.When the temperature of arbitrary refrigerator reaches to set cryogenic temperature, the contact switch Guan Bi of temperature sensor in this refrigerator ECU connects the refrigeration relay of this refrigerator ECU, catalyst drives coil KM to obtain electric, contactless contactor KM1 Guan Bi connects refrigeration compressor 1 power supply, and the refrigeration electromagnetic valve of this refrigerator refrigeration unit is opened and provided cold-producing medium to the vaporizer of this refrigerator refrigeration unit simultaneously.
Above-mentioned two refrigerators share the autonomous control system that a condensation unit is constituted, and be equally applicable to three or multiple stage refrigerator shares the autonomous control system that a condensation unit is constituted, and its operation principle is identical, and description is not repeated herein.
Claims (2)
1. multiple stage refrigerator shares a condensation unit autonomous control system, including refrigeration system and electric-control system, it is characterised in that:
The refrigerator refrigeration unit that described refrigeration system includes refrigeration compressor, condenser is identical with at least two structure；Described refrigerator refrigeration unit is made up of the vaporizer being in series, expansion valve and refrigeration electromagnetic valve, the described refrigeration electromagnetic valve import of each refrigerator refrigeration unit connects with described condensator outlet, the described evaporator outlet of each refrigerator refrigeration unit and described refrigeration compressor inlet communication, condenser inlet and refrigeration compressor outlet；
Described electric-control system includes the refrigerator ECU that refrigeration compressor ECU is identical with at least two structure；Described refrigerator ECU includes temperature controller, frost removal and refrigeration relay, the power input of described temperature controller is connected with the leading-out terminal of power circuit breaker by the switch that freezes, and described frost removal and refrigeration relay are connected with the leading-out terminal of described power circuit breaker respectively through described refrigeration switch；The temperature sensor contact switch of temperature controller is series in the power circuit of described refrigeration relay, and the defrosting sensor contact switch series of temperature controller is coupled in the power circuit of described frost removal；Described refrigeration compressor ECU includes refrigeration compressor, condensation fan and refrigeration control unit, and the power input of described refrigeration compressor and condensation fan is connected with the leading-out terminal of described power circuit breaker by contactless contactor；Described refrigeration control unit includes first, second normally opened contact that described catalyst drives the relay that freezes of coil, the refrigeration solenoid-driven coil of described refrigerator refrigeration unit and described refrigerator ECU；First normally opened contact of described refrigeration relay is connected with the leading-out terminal of power circuit breaker by cooling activation switch with after refrigeration solenoid-driven coils connected in series, and the second normally opened contact of refrigeration relay is driven with catalyst after coils connected in series and is connected with the leading-out terminal of power circuit breaker by described cooling activation switch.
2. multiple stage refrigerator according to claim 1 shares condensation unit autonomous control system, it is characterised in that: refrigeration relay and the two ends of temperature sensor contact switch series circuit in described refrigerator ECU are parallel with evaporation fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276812.8A CN105805995B (en) | 2016-04-29 | 2016-04-29 | More refrigerators share condensation unit autonomous control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276812.8A CN105805995B (en) | 2016-04-29 | 2016-04-29 | More refrigerators share condensation unit autonomous control system |
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| Publication Number | Publication Date |
|---|---|
| CN105805995A true CN105805995A (en) | 2016-07-27 |
| CN105805995B CN105805995B (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610276812.8A Active CN105805995B (en) | 2016-04-29 | 2016-04-29 | More refrigerators share condensation unit autonomous control system |
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| Country | Link |
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| CN (1) | CN105805995B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131670A (en) * | 2017-06-09 | 2017-09-05 | 杨玄星 | A kind of double-compressor refrigeration system of shared condensation fan |
| CN112303978A (en) * | 2019-07-30 | 2021-02-02 | 开利公司 | Refrigeration cabinet system and control method thereof |
Citations (7)
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| CN85109605A (en) * | 1984-12-14 | 1986-10-08 | 三电有限公司 | The fridge equipment that car means for air conditioner and refrigerator are used |
| CN2235089Y (en) * | 1995-06-27 | 1996-09-11 | 苏州市鼎力空调设备厂 | Defrosting protection controller for air cooled cold (hot) water unit |
| KR20050001753A (en) * | 2003-06-26 | 2005-01-07 | 박은수 | A refrigeration machine controller |
| CN200968715Y (en) * | 2006-05-18 | 2007-10-31 | 李永光 | Intelligent heat reclamation heat pump cold and hot water set |
| CN201514086U (en) * | 2009-08-12 | 2010-06-23 | 四川澳尔空调冷冻设备有限公司 | Low-temperature refrigeratory hot water defrosting full-automatic control device |
| CN105091387A (en) * | 2015-09-30 | 2015-11-25 | 黄石东贝制冷有限公司 | Efficient refrigerating system |
| CN205641712U (en) * | 2016-04-29 | 2016-10-12 | 郑州凯雪冷链股份有限公司 | Many independent control system of freezer sharing condensation unit |
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2016
- 2016-04-29 CN CN201610276812.8A patent/CN105805995B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109605A (en) * | 1984-12-14 | 1986-10-08 | 三电有限公司 | The fridge equipment that car means for air conditioner and refrigerator are used |
| CN2235089Y (en) * | 1995-06-27 | 1996-09-11 | 苏州市鼎力空调设备厂 | Defrosting protection controller for air cooled cold (hot) water unit |
| KR20050001753A (en) * | 2003-06-26 | 2005-01-07 | 박은수 | A refrigeration machine controller |
| CN200968715Y (en) * | 2006-05-18 | 2007-10-31 | 李永光 | Intelligent heat reclamation heat pump cold and hot water set |
| CN201514086U (en) * | 2009-08-12 | 2010-06-23 | 四川澳尔空调冷冻设备有限公司 | Low-temperature refrigeratory hot water defrosting full-automatic control device |
| CN105091387A (en) * | 2015-09-30 | 2015-11-25 | 黄石东贝制冷有限公司 | Efficient refrigerating system |
| CN205641712U (en) * | 2016-04-29 | 2016-10-12 | 郑州凯雪冷链股份有限公司 | Many independent control system of freezer sharing condensation unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131670A (en) * | 2017-06-09 | 2017-09-05 | 杨玄星 | A kind of double-compressor refrigeration system of shared condensation fan |
| CN112303978A (en) * | 2019-07-30 | 2021-02-02 | 开利公司 | Refrigeration cabinet system and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN105805995B (en) | 2017-11-24 |
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