CN105404338A - Control system applied to preservation box for controlling temperature and relative humidity - Google Patents
Control system applied to preservation box for controlling temperature and relative humidity Download PDFInfo
- Publication number
- CN105404338A CN105404338A CN201510946720.1A CN201510946720A CN105404338A CN 105404338 A CN105404338 A CN 105404338A CN 201510946720 A CN201510946720 A CN 201510946720A CN 105404338 A CN105404338 A CN 105404338A
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- Prior art keywords
- solenoid valve
- condenser
- compressor
- message handler
- humidity
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a control system applied to a preservation box for controlling temperature and relative humidity. The control system comprises a refrigeration heating module, a speed regulation blower fan and a micro computer control module, wherein the refrigeration heating module comprises a compressor and a solenoid valve, and the microcomputer control module comprises a humidity sensor, a temperature sensor and an information processor. The humidity sensor and the information processor are connected, the temperature sensor and the information processor are connected, the compressor and the information processor are connected, the speed regulation blower fan and the information processor are connected, and the solenoid valve and the information processor are connected. According to the invention, cooling and dehumidification are carried out through a refrigeration system, the inside of the box is heated through controlling on-off of the solenoid valve, humidification or dehumidification is performed through the speed regulation blower fan, at the same time, the temperature inside the box is more uniform, and the temperature inside the box is prevented from being too high or too low.
Description
Technical field
The invention belongs to technical field of refrigeration equipment, specifically a kind of adjustable speed fan and refrigeration system control the system of the temperature inside the box and relative humidity simultaneously.
Background technology
Along with the fast development of China's economy, science and technology and medical and health care system, what new edition GSP applied in China gos deep into, the quality requirements of medical cold chain industry to medical commodity is more and more higher, GSP to the temperature of the environment that medicine is preserved and the requirement of relative humidity also more and more stricter, simultaneously control temperature and the storage box of relative humidity can there are two kinds of drawbacks below in the market: one is because case Inner eycle blower fan is not work always, temperature homogeneity when case Inner eycle blower fan quits work in case can be deteriorated, and then the quality that impact medicine is preserved.Two is for congealer, and when the compressor is operated, evaporator is the process of a continuous frosting, can accelerates evaporimeter frosting when case Inner eycle blower fan quits work in addition, long-play can make the continuous frosting of evaporator and cause storage box normally not run.
Summary of the invention
The object of the present invention is to provide a kind of temperature and humidity control system reliably, by refrigeration system cool-down dehumidification, by Controlling solenoid valve opening and closing to heating in case, make the temperature inside the box more even by adjustable speed fan humidification or dehumidifying simultaneously.
To achieve these goals, the technical solution used in the present invention is:
A kind of control system being applied to control temperature and relative humidity in storage box, comprise refrigeration heating module, adjustable speed fan and microcomputer controlling module, described refrigeration heating module comprises compressor and solenoid valve, and described microcomputer controlling module comprises humidity sensor, temperature sensor and message handler; Described humidity sensor is connected with message handler, and described temperature sensor is connected with message handler, and described compressor is connected with message handler, and described adjustable speed fan is connected with message handler, and described solenoid valve is connected with message handler.
Preferably, described refrigeration heating module also comprises evaporator, condenser, case inner condenser, case external condenser and kapillary, refrigeration heating module comprises two pipeline refrigeration systems, one pipeline refrigeration system is cascade evaporation device, compressor, condenser, solenoid valve, case external condenser and kapillary successively, and another pipeline refrigeration system is cascade evaporation device, compressor, condenser, solenoid valve, case inner condenser and kapillary successively.Described case inner condenser heats storage box.
Preferably, described adjustable speed fan is according to storage box humidity adjusting rotary speed.
When preservation the temperature inside the box or humidity are higher than normal range; message handler is fed back to by Temperature Humidity Sensor; message handler controls compressor start to reduce the temperature inside the box and relative humidity; simultaneously according to the rotating speed of storage box humidity size adjustment adjustable speed fan; if case humidity is higher than normal value when compressor operating, increase adjustable speed fan rotating speed, if case humidity is higher than normal value when compressor shutdown, reduce adjustable speed fan rotating speed.
When storage box humidity needs compressor start to dehumidify higher than normal value, if now the temperature inside the box is lower than normal value, message handler is opened by the temperature signal Controlling solenoid valve fed back to and is made up to heating in case the unnecessary cold produced because of refrigeration, avoids the temperature inside the box lower than normal value.
When preservation the temperature inside the box is lower than normal range, then message handler controls compressor operating by the temperature signal fed back to, and solenoid valve is opened and heated in storage box.The principle of work of heating is when the partial condensation heat of solenoid valve action post-condenser can be discharged into the interior refrigeration duty in order to balancing evaporator of case.Case external condenser is in parallel by solenoid valve with case inner condenser, and the effect of solenoid valve is to make cold-producing medium only enter kapillary by case inner condenser or only enter kapillary by case external condenser by the action of solenoid valve when the compressor is operated.When case humidity is lower than normal range, whether compressor start-stop all increases adjustable speed fan rotating speed.
The beneficial effect that the present invention obtains is:
The process of process of refrigerastion, solenoid valve unlatching heating and adjustable speed fan speed governing are the processes of a continuous co-ordination mutually, the adjustable speed fan rotating speed that different case humidity is corresponding different, by constantly cooperating and then the humiture that controls in storage box repeatedly, improve temperature homogeneity in storage box due to the state being in air blast cooling in case always simultaneously and inhibit the Frost formation process of evaporator, storage box long-term stability is run.
The present invention is by refrigeration system cool-down dehumidification, make the temperature inside the box more even by Controlling solenoid valve opening and closing to heating in case, by adjustable speed fan humidification or dehumidifying simultaneously, prevent case humidity too high or too low, inhibit the frosting trend of evaporator because adjustable speed fan works always simultaneously, and then ensure humiture in storage box.
Accompanying drawing explanation
Fig. 1 is the structural representation of the control system being applied to control temperature and relative humidity in storage box.
Fig. 2 is the structural representation of refrigeration heating module.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Composition graphs 1, a kind of control system being applied to control temperature and relative humidity in storage box, comprise refrigeration heating module, adjustable speed fan and microcomputer controlling module, described refrigeration heating module comprises evaporator, compressor, condenser, solenoid valve, case inner condenser, case external condenser and kapillary, and described microcomputer controlling module comprises humidity sensor, temperature sensor and message handler; Described humidity sensor is connected with message handler, and described temperature sensor is connected with message handler, and described compressor is connected with message handler, and described adjustable speed fan is connected with message handler, and described solenoid valve is connected with message handler.
Composition graphs 2, two pipeline refrigeration systems are comprised in refrigeration heating module, one pipeline refrigeration system is in series with evaporator, compressor, condenser, solenoid valve, case external condenser and kapillary successively, and another pipeline refrigeration system is in series with evaporator, compressor, condenser, solenoid valve, case inner condenser and kapillary successively.
Described case inner condenser heats storage box.
Described adjustable speed fan regulates according to storage box humidity.
When preservation the temperature inside the box or humidity are higher than normal range; message handler is fed back to by Temperature Humidity Sensor; message handler controls compressor start to reduce the temperature inside the box and relative humidity; simultaneously according to the rotating speed of storage box humidity size adjustment adjustable speed fan; if case humidity is higher than normal value when compressor operating, increase adjustable speed fan rotating speed, if case humidity is higher than normal value when compressor shutdown, reduce adjustable speed fan rotating speed.
When storage box humidity needs compressor start to dehumidify higher than normal value, if now the temperature inside the box is lower than normal value, message handler is opened by the temperature signal Controlling solenoid valve fed back to and is made up to heating in case the unnecessary cold produced because of refrigeration, avoids the temperature inside the box lower than normal value.
When preservation the temperature inside the box is lower than normal range, then message handler controls compressor operating by the temperature signal fed back to, and solenoid valve is opened and heated in storage box.The principle of work of heating is when the partial condensation heat of solenoid valve action post-condenser can be discharged into the interior refrigeration duty in order to balancing evaporator of case.Case external condenser is in parallel by solenoid valve with case inner condenser, and the effect of solenoid valve is to make cold-producing medium only enter kapillary by case inner condenser or only enter kapillary by case external condenser by the action of solenoid valve when the compressor is operated.When case humidity is lower than normal range, whether compressor start-stop all increases adjustable speed fan rotating speed.
The process of process of refrigerastion, solenoid valve unlatching heating and adjustable speed fan speed governing are the processes of a continuous co-ordination mutually, the adjustable speed fan rotating speed that different case humidity is corresponding different, by constantly cooperating and then the humiture that controls in storage box repeatedly, improve temperature homogeneity in storage box due to the state being in air blast cooling in case always simultaneously and inhibit the Frost formation process of evaporator, storage box long-term stability is run.
The present invention is by refrigeration system cool-down dehumidification, make the temperature inside the box more even by Controlling solenoid valve opening and closing to heating in case, by adjustable speed fan humidification or dehumidifying simultaneously, prevent case humidity too high or too low, inhibit the frosting trend of evaporator because adjustable speed fan works always simultaneously, and then ensure humiture in storage box.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (3)
1. one kind is applied to the control system of control temperature and relative humidity in storage box, it is characterized in that, comprise refrigeration heating module, adjustable speed fan and microcomputer controlling module, described refrigeration heating module comprises compressor and solenoid valve, and described microcomputer controlling module comprises humidity sensor, temperature sensor and message handler; Described humidity sensor is connected with message handler, and described temperature sensor is connected with message handler, and described compressor is connected with message handler, and described adjustable speed fan is connected with message handler, and described solenoid valve is connected with message handler.
2. the control system being applied to control temperature and relative humidity in storage box according to claim 1, it is characterized in that, described refrigeration heating module also comprises evaporator, condenser, case inner condenser, case external condenser and kapillary, refrigeration heating module comprises two pipeline refrigeration systems, one pipeline refrigeration system is cascade evaporation device, compressor, condenser, solenoid valve, case external condenser and kapillary successively, and another pipeline refrigeration system is cascade evaporation device, compressor, condenser, solenoid valve, case inner condenser and kapillary successively.
3. the control system being applied to control temperature and relative humidity in storage box according to claim 1, is characterized in that, described adjustable speed fan is according to storage box humidity adjusting rotary speed.
Priority Applications (1)
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CN201510946720.1A CN105404338A (en) | 2015-12-17 | 2015-12-17 | Control system applied to preservation box for controlling temperature and relative humidity |
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CN201510946720.1A CN105404338A (en) | 2015-12-17 | 2015-12-17 | Control system applied to preservation box for controlling temperature and relative humidity |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106731532A (en) * | 2016-11-15 | 2017-05-31 | 北京无线电测量研究所 | A kind of Intelligent dehumidifying device and method |
CN107741750A (en) * | 2017-09-30 | 2018-02-27 | 宁波市百斯麦瑞电器设备有限公司 | A kind of automatic control system of case peculiar to vessel of raising bean sprouts |
CN113154768A (en) * | 2021-05-20 | 2021-07-23 | 北京优冷供应链管理有限公司 | Multi-mode combined refrigeration medicine refrigerating box and accurate temperature control method |
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CN201255555Y (en) * | 2008-07-25 | 2009-06-10 | 任一夫 | Low energy consumption, low-temperature and ultra-low humidity artificial environment device |
CN202141239U (en) * | 2011-06-14 | 2012-02-08 | 韩建材 | Constant-temperature constant-humidity system with double condensers |
JP2013050237A (en) * | 2011-08-30 | 2013-03-14 | Hitachi Appliances Inc | Refrigerator and freezer |
CN203108541U (en) * | 2012-08-06 | 2013-08-07 | 深圳市宇泰试验设备有限公司 | Constant-temperature and constant-humidity test box |
CN103851879A (en) * | 2014-03-27 | 2014-06-11 | 合肥晶弘电器有限公司 | Moisture preserving wine cabinet |
CN104654645A (en) * | 2013-11-18 | 2015-05-27 | 海尔集团公司 | Freezer temperature/humidity adjusting system and freezer |
CN205263689U (en) * | 2015-12-17 | 2016-05-25 | 青岛澳柯玛超低温冷冻设备有限公司 | Control system for controlled temperature and hygrometry in save case |
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2015
- 2015-12-17 CN CN201510946720.1A patent/CN105404338A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1553128A (en) * | 2003-06-06 | 2004-12-08 | 博西华家用电器有限公司 | Household temperature and humidity control refrigerator and controlling method thereof |
CN201255555Y (en) * | 2008-07-25 | 2009-06-10 | 任一夫 | Low energy consumption, low-temperature and ultra-low humidity artificial environment device |
CN202141239U (en) * | 2011-06-14 | 2012-02-08 | 韩建材 | Constant-temperature constant-humidity system with double condensers |
JP2013050237A (en) * | 2011-08-30 | 2013-03-14 | Hitachi Appliances Inc | Refrigerator and freezer |
CN203108541U (en) * | 2012-08-06 | 2013-08-07 | 深圳市宇泰试验设备有限公司 | Constant-temperature and constant-humidity test box |
CN104654645A (en) * | 2013-11-18 | 2015-05-27 | 海尔集团公司 | Freezer temperature/humidity adjusting system and freezer |
CN103851879A (en) * | 2014-03-27 | 2014-06-11 | 合肥晶弘电器有限公司 | Moisture preserving wine cabinet |
CN205263689U (en) * | 2015-12-17 | 2016-05-25 | 青岛澳柯玛超低温冷冻设备有限公司 | Control system for controlled temperature and hygrometry in save case |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106731532A (en) * | 2016-11-15 | 2017-05-31 | 北京无线电测量研究所 | A kind of Intelligent dehumidifying device and method |
CN107741750A (en) * | 2017-09-30 | 2018-02-27 | 宁波市百斯麦瑞电器设备有限公司 | A kind of automatic control system of case peculiar to vessel of raising bean sprouts |
CN113154768A (en) * | 2021-05-20 | 2021-07-23 | 北京优冷供应链管理有限公司 | Multi-mode combined refrigeration medicine refrigerating box and accurate temperature control method |
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Application publication date: 20160316 |