CN113623924B - Semiconductor refrigeration cold water machine with standby control system - Google Patents
Semiconductor refrigeration cold water machine with standby control system Download PDFInfo
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- CN113623924B CN113623924B CN202110704681.XA CN202110704681A CN113623924B CN 113623924 B CN113623924 B CN 113623924B CN 202110704681 A CN202110704681 A CN 202110704681A CN 113623924 B CN113623924 B CN 113623924B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 234
- 238000005057 refrigeration Methods 0.000 title claims abstract description 98
- 239000004065 semiconductor Substances 0.000 title claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims description 27
- 238000013528 artificial neural network Methods 0.000 claims description 17
- 239000000498 cooling water Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 230000001012 protector Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 238000004134 energy conservation Methods 0.000 abstract description 4
- 230000005679 Peltier effect Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 36
- 230000002159 abnormal effect Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 238000007906 compression Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 9
- 239000008236 heating water Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 230000003203 everyday effect Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004148 unit process Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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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
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
-
- 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
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/003—General constructional features for cooling refrigerating machinery
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a semiconductor refrigeration water chiller with a standby control system, which comprises a machine body, wherein a refrigeration unit, a water tank, a water pump, a switching power supply, a power supply control board and a temperature sensor are arranged in the machine body, the refrigeration unit, the water pump and the water tank form a circulating water path through water pipes, the standby control system is integrated on the power supply control board, and the refrigeration unit comprises a first fan cover, a first radiator, a first semiconductor refrigeration sheet group, a heat exchange plate, a second semiconductor refrigeration sheet group, a second radiator, a second fan cover and a fan arranged on one side of the heat exchange plate, which are sequentially arranged from top to bottom. The invention utilizes the Peltier effect of the semiconductor refrigerating sheet to realize the double effects of refrigeration and heating, thereby realizing precise temperature control; a standby control model is generated by arranging a standby control system, and when the temperature sensor fails, the working mode of the water chiller is controlled by the standby control model, so that the reliability of the water chiller is improved; small volume, convenient use, energy conservation, environmental protection and high safety.
Description
Technical Field
The invention relates to the technical field of water coolers, in particular to a semiconductor refrigeration water cooler with a standby control system.
Background
The water cooler is a water cooling device and can provide constant-temperature, constant-flow and constant-pressure cooling water. When the water cooler works, a certain amount of water needs to be injected into the water tank in the water cooler, the water is cooled by the refrigerating unit of the water cooler, low-temperature cooling water is sent to equipment needing cooling by the water pump, the cooling water exchanges heat with the equipment and takes away heat, meanwhile, the temperature of water rises, and after the water flows back to the water tank, the backflow water is cooled by the refrigerating unit, so that the effect of cooling the equipment is achieved. The water chiller is widely applied to medical treatment and industry, but most of the existing water chillers are used as independent water chillers and cannot be interconnected with equipment to be cooled and automatically controlled. There are two solutions for conventional water coolers: air-cooled refrigeration and compression refrigeration. The two schemes have limitations respectively, the air-cooled water chiller can only dissipate heat and can not refrigerate, and the temperature cannot be lower than the ambient temperature; and the compression refrigeration needs to use a refrigerant, which is not beneficial to environmental protection. Compared with the traditional refrigeration mode, the semiconductor refrigeration has the advantages of no transmission mechanism, no refrigerant, direct current power supply, large cooling temperature difference, precise temperature control and the like. With the continuous development of semiconductor technology, the high quality coefficient of the semiconductor refrigeration piece is higher and higher, however, in the prior art, the semiconductor refrigeration water chiller realizes precise temperature control through a temperature sensor, and when the temperature sensor breaks down, the water chiller fails, so that the temperature of the equipment to be cooled is abnormal, and the equipment cannot work normally. For example, chinese patent grant publication no: CN205481911U discloses a water chilling unit combining air cooling and compression refrigeration, which comprises a shell, an air cooling system, a compression refrigeration system and an electric cabinet arranged outside a side end plate of the shell, wherein a control component is arranged in the electric cabinet, the air cooling system comprises a plurality of fans and a waterway coil pipe, and the fans are uniformly distributed in the center of the top end plate of the shell; the compression refrigeration system is provided with a plurality of refrigeration loops which are arranged in parallel; a horizontal isolation plate is arranged in the middle of the inside of the shell, and the shell is divided into an upper ventilation chamber and a lower closed chamber by the isolation plate; and the control component is respectively connected with the fan system, the electric three-way valve, the water suction pump and the compression refrigeration system through leads. Although the utility model discloses make full use of air cooling unit and compression refrigeration unit's structural feature divide into upper portion convulsions cooling, lower part compression refrigeration, and the structure is unique, reasonable in design, nevertheless uses the refrigerant, is unfavorable for environmental protection.
Disclosure of Invention
The invention mainly aims to solve the problems that in the prior art, an air-cooled water chiller can only dissipate heat and can not refrigerate, a compression type water chiller uses a refrigerant, which is not beneficial to environmental protection, and the conventional semiconductor refrigeration water chiller is not high in reliability, and provides the semiconductor refrigeration water chiller with a standby control system, which adopts a semiconductor refrigeration sheet, can refrigerate and heat and realizes precise temperature control; the standby control system is arranged, so that the reliability is improved, and when the temperature sensor fails, the water chiller can still work; small volume, convenient use and high safety.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a semiconductor refrigeration cold water machine with standby control system, includes the organism, be equipped with refrigeration unit, water tank, water pump, switching power supply, power control panel in the organism and the temperature sensor who is connected with the power control panel electricity, refrigeration unit, water pump and water tank lead to pipe constitute the circulation water route, the last integration of power control panel has standby control system, refrigeration unit is including first fan casing, first radiator, first semiconductor refrigeration piece group, heat exchange plate, second semiconductor refrigeration piece group, second radiator and the second fan casing that from top to bottom sets gradually, and refrigeration unit still includes the fan of establishing in heat exchange plate one side. The invention utilizes the Peltier effect of the semiconductor refrigeration piece, namely the semiconductor refrigeration piece can refrigerate and heat under direct current, determines whether the same semiconductor refrigeration piece refrigerates or heats by changing the polarity of the direct current, controls the intensity of refrigeration/heating by changing the magnitude of the direct current, and further realizes precise temperature control, wherein the change of the polarity and the magnitude of the current is realized by adopting a power supply control board of a full-bridge current reversing circuit. When the water cooler works, a certain amount of water needs to be injected into the water tank firstly, the temperature of return water is detected through the temperature sensor, the temperature of equipment to be cooled is indirectly reflected, when the temperature value detected by the temperature sensor is larger than a set temperature value, the power supply control panel controls the water cooler to start a refrigeration mode, the refrigeration unit of the water cooler cools the water, low-temperature cooling water is sent to the equipment needing cooling through the water pump, the cooling water exchanges heat with the equipment, then the cooling water flows back to the water tank, and then the refrigeration unit cools the return water to achieve the effect of cooling the equipment; when the temperature value measured by the temperature sensor is smaller than the set temperature value, the power supply control board controls the water chiller to start a heating mode, the water is heated by the refrigerating unit of the water chiller, high-temperature heating water is sent to equipment needing to be heated by the water pump, the heating water exchanges heat with the equipment, then flows back to the water tank, and the refrigerating unit heats the backflow water to further achieve the effect of heating the equipment, so that precise temperature control is realized. According to the field experience of using the water chiller in a factory, whether the water chiller is used for cooling or heating in each time period in one day and the cooling/heating intensity have certain regularity, a standby control model is generated by utilizing the regularity, and when a temperature sensor fails, the working mode of the water chiller in any time period in one day, including the cooling or heating and the cooling/heating intensity, is judged through the standby control model. In order to achieve the purpose, the standby control system is integrated on the power control board and used for generating the standby control model, when the temperature sensor fails, the standby control model generated by the standby control system controls the working mode of the water chiller, so that the problem that the equipment cannot work normally due to abnormal temperature of the water chiller caused by failure is avoided, and the reliability of the water chiller is improved. The invention realizes double effects of refrigeration and heating, thereby realizing precise temperature control; the reliability of the product is improved through the standby control system; the cooling device is small in size, energy-saving, environment-friendly and convenient to use, and can be interconnected with equipment to be cooled to realize automatic control.
Preferably, the standby control system comprises a database for collecting and storing historical data, a data processing unit for processing the historical data, a standby control model generating unit and a chip, wherein the chip is electrically connected with the database, the data processing unit and the standby control model generating unit respectively, and the database, the data processing unit and the standby control model generating unit are electrically connected in sequence. The invention realizes the automatic control of the working mode of the water chiller through the temperature sensor and the power supply control board, when the temperature sensor fails, the water chiller fails to work, the temperature of the equipment is abnormal, and the normal work can not be realized, thereby reducing the reliability of the water chiller. In order to solve the problem, according to the field experience of using the water chiller in the factory, every time quantum water chiller is refrigeration or heating in one day, and the intensity of refrigeration/heating has certain regularity, utilize such law to integrate a reserve control system on power control board, reserve control system is including the database of collecting and storing historical data, carry out data processing unit, the reserve control model generating unit and the chip of handling historical data, the chip respectively with database, data processing unit, reserve control model generating unit electricity are connected, database, data processing unit, reserve control model generating unit electricity are connected in proper order. The method comprises the steps that historical data are collected by a database of the standby control system, the historical data comprise working modes of a water chiller in each time period every day, the working modes comprise refrigeration or heating and refrigeration/heating intensity, then the historical data are transmitted to a data processing unit, the data processing unit processes the historical data and transmits the processed data to a standby control model generating unit, and the standby control model generating unit firstly constructs a neural network through a neural network learning method and then trains the neural network to generate a standby control model through the processed data. When the temperature sensor is in fault, the standby control model outputs the working mode of the water chiller corresponding to the input real-time moment in one day, and then controls the water chiller to work according to the working mode through the power control board, so that the problem that the equipment temperature is abnormal and the equipment cannot work normally due to the failure of the water chiller is avoided, and the reliability of the water chiller is improved.
Preferably, the standby control model generating unit generates a standby control model through a neural network learning method, and when the temperature sensor fails, controls the working mode of the water chiller through the standby control model. The database of the standby control system collects historical data, the historical data comprises working modes of a water chiller at each time period every day, the working modes comprise refrigeration or heating and refrigeration/heating intensity, then the historical data is transmitted to the data processing unit, the data processing unit processes the historical data and transmits the processed data to the standby control model generating unit, and the standby control model generating unit firstly constructs a neural network by a neural network learning method and then trains the neural network to generate a standby control model by the processed data. When the temperature sensor is in fault, the standby control model outputs the working mode of the water cooler corresponding to the input real-time moment in one day, and then controls the water cooler to work according to the working mode through the power control board, so that the problem that the equipment temperature is abnormal due to failure of the water cooler is avoided, the equipment cannot work normally, and the reliability of the water cooler is improved.
Preferably, when the temperature sensor works normally, the temperature value measured by the temperature sensor is compared with a set temperature value, and if the measured temperature value is greater than the set temperature value, the cooling water machine starts a cooling mode through the power control board; and if the measured temperature value is less than the set temperature value, the water chiller starts a heating mode through the power control board. In order to realize precise temperature control, before the temperature control device is used, a set temperature value is input through an operation panel, then the temperature value of equipment is obtained through a temperature sensor, and when the temperature value is higher than the set temperature value, the temperature needs to be reduced and cooled, and a refrigeration mode is started by a water chiller; when the temperature value is lower than the set temperature value, the temperature needs to be raised for heating, and the water cooling machine starts a heating mode.
Preferably, when the temperature sensor works normally, the temperature difference measured by the temperature sensor is compared with a set temperature difference, and if the measured temperature difference is greater than the set temperature difference, the cooling/heating intensity of the water chiller is improved through the power supply control panel; and if the measured temperature difference is smaller than the set temperature difference, the cooling-water machine reduces the refrigerating/heating intensity through the power control panel. In order to improve the temperature control efficiency of the water chiller and ensure energy conservation and environmental protection, a set temperature difference value is input through an operation panel before the water chiller is used, then the temperature difference value of equipment is obtained through a temperature sensor, and when the temperature difference value is higher than the set temperature difference value, the refrigerating/heating strength of the water chiller needs to be improved; when the temperature difference is lower than the set temperature difference, the cooling/heating intensity of the water cooler needs to be reduced.
Preferably, the machine body is enclosed by a left cover plate, a rear cover plate, a right cover plate, a front plate, a top plate and a bottom plate, the upper portion of the front plate is an inclined plane, an operation panel is arranged on the inclined plane, the left cover plate is provided with an air inlet, a filter screen is arranged in front of a refrigerating unit behind the air inlet, the right cover plate is provided with an air outlet, and the rear cover plate is provided with a water path interface and an electrical interface. The machine body is surrounded by a left cover plate, a rear cover plate, a right cover plate, a front plate, a top plate and a bottom plate, an operation panel arranged on the front plate is a touch screen and is used for displaying temperature information, alarm information and the like, the temperature is set and controlled through the operation panel, and the man-machine interaction is improved; the left cover plate is provided with an air inlet, and a filter screen is arranged behind the air inlet and in front of the refrigerating unit and used for filtering sand and dust in air to avoid influencing the normal work of the product; the rear cover plate is provided with a water path interface and an electrical interface, the water path interface is used for being connected with equipment to form a circulating water path, and the electrical interface comprises an alarm communication interface and an external temperature sensor communication interface and is used for communicating with the outside.
Preferably, the waterway interface comprises a water outlet, a water inlet and a water outlet, wherein a flow velocity sensor is arranged on the water outlet, and a temperature sensor is arranged on the water inlet. The water outlet is used for outputting cooling water or heating water to cool or heat equipment, and the flow velocity of the water outlet is monitored in real time by arranging the flow velocity sensor on the water outlet so as to prevent the water outlet from being locally frozen; the water inlet is used for collecting return water, and the temperature of the return water is monitored in real time by arranging a temperature sensor on the water inlet to indirectly reflect the temperature of equipment to be cooled; the water outlet is used for discharging waste water after the water cooler finishes working.
Preferably, the switching power supply and the power supply control panel form a pair with the water pump, the first semiconductor refrigerating sheet set, the second semiconductor refrigerating sheet set, the operation panel and the fan power supply and control module. The switch power supply and the power supply control board form a power supply and control module which is used for supplying power to the water pump, the first semiconductor refrigerating sheet set, the second semiconductor refrigerating sheet set, the operation panel and the fan and controlling the water pump, the first semiconductor refrigerating sheet set, the second semiconductor refrigerating sheet set, the operation panel and the fan to work. The switch power supply, the power supply control board and the refrigeration unit are separated by the partition board, so that the circuit and the water path are separated, and the safety of the refrigerator is improved.
Preferably, the heat exchange plate, the first radiator and the second radiator are respectively provided with an overheat protector. When the temperature of the heat exchange plate, the first radiator or the second radiator is too high, the overheat protector can automatically disconnect a circuit, the water cooling machine stops working, accidents are avoided, and the safety and the automation degree of the product are improved.
Preferably, a liquid level sensor is arranged in the water tank. The invention is characterized in that a liquid level sensor is arranged in the water tank and used for detecting the height of the liquid level in the water tank so as to prevent the liquid in the water tank from being too much or too little, and when the liquid level sensor detects that the water tank overflows or lacks water, alarm information can be displayed on the operation panel.
Therefore, the invention has the advantages that:
(1) The semiconductor refrigerating sheet is adopted to realize the double effects of refrigeration and heating, thereby realizing precise temperature control;
(2) The standby control system is arranged, so that when the temperature sensor fails, the water chiller can work, and the reliability of the water chiller is improved;
(3) The temperature sensor and the power supply control board are interconnected with equipment to be cooled to realize automatic temperature control;
(4) Small volume, convenient use, energy conservation, environmental protection and high safety.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a partial structural schematic diagram of the present invention.
FIG. 3 is a schematic diagram of the standby control system of the present invention.
Fig. 4 is a schematic diagram of the construction of the refrigeration unit of the present invention.
1. The device comprises a machine body 2, a refrigeration unit 3, a water tank 4, a water pump 5, a switching power supply 6, a power supply control panel 7, a water pipe 8, a standby control system 9, a left cover plate 10, a rear cover plate 11, a right cover plate 12, a front plate 13, a top plate 14, a bottom plate 15, an operation panel 16, an air inlet 17, a filter screen 18, an air outlet 19, an water outlet 20, a water inlet 21, a water outlet 22, an overheat protector 23, a partition plate 201, a first fan cover 202, a first radiator 203, a first semiconductor refrigeration sheet group 204, a heat exchange plate 205, a second semiconductor refrigeration sheet group 206, a second radiator 207, a second fan cover 208, a fan 801, a database 802, a data processing unit 803, a standby control model generation unit 804 and a chip.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
As shown in fig. 1-4, a semiconductor refrigeration water chiller with a standby control system includes a machine body 1, a refrigeration unit 2, a water tank 3, a water pump 4, a switching power supply 5, a power supply control board 6 and a temperature sensor electrically connected to the power supply control board 6 are arranged in the machine body 1, the refrigeration unit 2, the water pump 4 and the water tank 3 form a circulation water path through a water pipe 7, a standby control system 8 is integrated on the power supply control board 6, the refrigeration unit 2 includes a first fan cover 201, a first radiator 202, a first semiconductor refrigeration sheet group 203, a heat exchange plate 204, a second semiconductor refrigeration sheet group 205, a second radiator 206 and a second fan cover 207 which are sequentially arranged from top to bottom, and the refrigeration unit 2 further includes a fan 208 arranged on one side of the heat exchange plate 204. The invention utilizes the Peltier effect of the semiconductor refrigeration piece, namely the semiconductor refrigeration piece can refrigerate and heat under direct current, determines whether the same semiconductor refrigeration piece refrigerates or heats by changing the polarity of the direct current, controls the intensity of refrigeration/heating by changing the magnitude of the direct current, and further realizes precise temperature control, wherein the change of the polarity and the magnitude of the current is realized by adopting the power control board 6 of the full-bridge current reversing circuit. When the water cooler works, a certain amount of water needs to be injected into the water tank 3, the temperature of return water is detected through the temperature sensor, the temperature of equipment to be cooled is indirectly reflected, when the temperature value detected by the temperature sensor is larger than a set temperature value, the power supply control board 6 controls the water cooler to start a refrigeration mode, the refrigeration unit 2 of the water cooler cools water, low-temperature cooling water is sent to the equipment needing cooling through the water pump 4, the cooling water exchanges heat with the equipment, then the cooling water flows back to the water tank 3, and then the refrigeration unit 2 cools the return water to achieve the effect of cooling the equipment; when the temperature value measured by the temperature sensor is smaller than the set temperature value, the power supply control board 6 controls the water chiller to start a heating mode, water is heated by the refrigerating unit 2 of the water chiller, high-temperature heating water is sent to equipment needing to be heated by the water pump 4, the heating water exchanges heat with the equipment, then flows back to the water tank 3, and the refrigerating unit 2 heats the backflow water to further achieve the effect of heating the equipment, so that precise temperature control is realized. According to the field experience of using the water chiller in a factory, whether the water chiller is used for cooling or heating in each time period in one day and the cooling/heating intensity have certain regularity, a standby control model is generated by utilizing the regularity, and when a temperature sensor fails, the working mode of the water chiller in any time period in one day, including the cooling or heating and the cooling/heating intensity, is judged through the standby control model. In order to achieve the purpose, the standby control system 8 is integrated on the power control board 6 and used for generating a standby control model, when the temperature sensor fails, the standby control model generated by the standby control system 8 controls the working mode of the water chiller, and abnormal equipment temperature and abnormal working caused by failure of the water chiller are avoided.
As shown in fig. 3, the standby control system 8 includes a database 801 that collects and stores history data, a data processing unit 802 that processes the history data, a standby control model generation unit 803, and a chip 804, the chip 804 is electrically connected to the database 801, the data processing unit 802, and the standby control model generation unit 803, respectively, and the database 801, the data processing unit 802, and the standby control model generation unit 803 are electrically connected in this order. The invention realizes the automatic control of the working mode of the water chiller through the temperature sensor and the power supply control board 6, when the temperature sensor fails, the water chiller fails to work, the temperature of the equipment is abnormal, and the water chiller can not work normally, thereby reducing the reliability of the water chiller. In order to solve the problem, according to the field experience of using the water chiller in a factory, whether the water chiller is used for cooling or heating in each time period in one day and the intensity of cooling/heating has certain regularity, a standby control system 8 is integrated on a power control board 6 by utilizing the regularity, the standby control system 8 comprises a database 801 for collecting and storing historical data, a data processing unit 802 for processing the historical data, a standby control model generating unit 803 and a chip 804, the chip 804 is respectively and electrically connected with the database 801, the data processing unit 802 and the standby control model generating unit 803, and the database 801, the data processing unit 802 and the standby control model generating unit 803 are sequentially and electrically connected. The database 801 of the standby control system 8 collects historical data, the historical data comprises working modes of the water chiller at each time period every day, the working modes comprise cooling or heating and cooling/heating intensity, then the historical data is transmitted to the data processing unit 802, the data processing unit 802 processes the historical data and transmits the processed data to the standby control model generating unit 803, and the standby control model generating unit 803 firstly constructs a neural network by a neural network learning method and then trains the neural network to generate a standby control model by the processed data. When the temperature sensor breaks down, the standby control model outputs the working mode of the water chiller corresponding to the moment in one day according to the input real-time moment, and then controls the water chiller to work according to the working mode through the power control panel 6, so that the problem that the temperature of equipment is abnormal and the equipment cannot work normally due to failure of the water chiller is avoided.
The standby control model generating unit 803 generates a standby control model through a neural network learning method, and controls the working mode of the water chiller through the standby control model when the temperature sensor fails. The database 801 of the standby control system 8 collects historical data, the historical data comprises working modes of a water chiller in each time period every day, the working modes comprise refrigeration or heating and refrigeration/heating intensity, then the historical data is transmitted to the data processing unit 802, the data processing unit 802 processes the historical data and transmits the processed data to the standby control model generating unit 803, and the standby control model generating unit 803 firstly constructs a neural network by a neural network learning method and then trains the neural network to generate a standby control model by the processed data. When the temperature sensor breaks down, the standby control model outputs the working mode of the water chiller corresponding to the moment in one day according to the input real-time moment, then controls the water chiller to work according to the working mode through the power control board 6, and the problem that the equipment temperature is abnormal due to failure of the water chiller is avoided, so that the equipment cannot work normally, and the reliability of the water chiller is improved.
When the temperature sensor works normally, comparing the temperature value measured by the temperature sensor with a set temperature value, and if the measured temperature value is greater than the set temperature value, starting a refrigeration mode of the water chiller through the power control board 6; if the measured temperature value is less than the set temperature value, the water chiller starts a heating mode through the power supply control board 6. In order to realize precise temperature control, before the temperature control device is used, a set temperature value is input through the operation panel 15, then the temperature value of equipment is obtained through the temperature sensor, and when the temperature value is higher than the set temperature value, the temperature needs to be reduced and cooled, and a refrigeration mode is started by the water chiller; when the temperature value is lower than the set temperature value, the temperature needs to be raised for heating, and the water cooling machine starts a heating mode.
When the temperature sensor works normally, the temperature difference value measured by the temperature sensor is compared with the set temperature difference value, and if the measured temperature difference value is larger than the set temperature difference value, the cooling/heating intensity of the water chiller is improved through the power supply control panel 6; if the measured temperature difference is smaller than the set temperature difference, the cooling-water machine reduces the refrigeration/heating intensity through the power control panel 6. In order to improve the temperature control efficiency of the water cooler and ensure energy conservation and environmental protection, a set temperature difference value is input through the operation panel 15 before use, then the temperature difference value of equipment is obtained through the temperature sensor, and when the temperature difference value is higher than the set temperature difference value, the refrigerating/heating strength of the water cooler needs to be improved; when the temperature difference is lower than the set temperature difference, the cooling/heating intensity of the water cooler needs to be reduced.
As shown in fig. 1, the machine body 1 is enclosed by a left cover plate 9, a rear cover plate 10, a right cover plate 11, a front plate 12, a top plate 13 and a bottom plate 14, the upper part of the front plate 12 is an inclined plane, an operation panel 15 is arranged on the inclined plane, the left cover plate 9 is provided with an air inlet 16, a filter screen 17 is arranged behind the air inlet 16 and in front of the refrigeration unit 2, the right cover plate 11 is provided with an air outlet 18, and the rear cover plate 10 is provided with a water path interface and an electrical interface. The machine body 1 is formed by a left cover plate 9, a rear cover plate 10, a right cover plate 11, a front plate 12, a top plate 13 and a bottom plate 14 in a surrounding mode, an operation panel 15 arranged on the front plate 12 is a touch screen and used for displaying temperature information, alarm information and the like, temperature setting and control are achieved through the operation panel 15, and man-machine interaction of the machine is improved; the left cover plate 9 is provided with an air inlet 16, and a filter screen 17 is arranged behind the air inlet 16 and in front of the refrigerating unit 2 and used for filtering sand and dust in the air to avoid influencing the normal work of the product; the rear cover plate 10 is provided with a waterway interface and an electrical interface, the waterway interface is used for being connected with equipment to form a circulating waterway, and the electrical interface comprises an alarm communication interface and an external temperature sensor communication interface and is used for communicating with the outside.
As shown in fig. 1, the waterway connector includes a water outlet 19, a water inlet 20 and a water outlet 21, a flow rate sensor is disposed on the water outlet 19, and a temperature sensor is disposed on the water inlet 20. The water outlet 19 is used for outputting cooling water or heating water to cool or heat equipment, and the flow velocity sensor is arranged on the water outlet 19 to monitor the flow velocity of the water outlet 19 in real time during refrigeration so as to prevent the water outlet 19 from being locally frozen; the water inlet 20 is used for collecting return water, and the temperature of the return water is monitored in real time by arranging a temperature sensor on the water inlet 20 to indirectly reflect the temperature of equipment to be cooled; the water outlet 21 is used for discharging waste water after the water chiller finishes working.
As shown in fig. 1, the switching power supply 5 and the power control board 6 constitute a power supply and control module for supplying power to the water pump 4, the first semiconductor cooling fin set 203, the second semiconductor cooling fin set 205, the operation panel 15 and the fan 208. The switching power supply 5 and the power control board 6 of the invention form a power supply and control module, which is used for supplying power to the water pump 4, the first semiconductor refrigerating sheet group 203, the second semiconductor refrigerating sheet group 205, the operation panel 15 and the fan 208, and controlling the water pump 4, the first semiconductor refrigerating sheet group 203, the second semiconductor refrigerating sheet group 205, the operation panel 15 and the fan 208 to work. According to the invention, the switch power supply 5, the power supply control board 6 and the refrigeration unit 2 are separated through the partition board 23, so that the circuit and the water path are separated, and the safety is high.
As shown in fig. 1-2, the heat exchange plate 204, the first heat sink 202, and the second heat sink 206 are each provided with an overheat protector 22. When the temperature of the heat exchange plate 204, the first radiator 202 or the second radiator 206 is too high, the overheat protector 22 will automatically cut off the circuit, and the water chiller will stop working, so as to avoid accidents.
A liquid level sensor is arranged in the water tank 3. According to the invention, the liquid level sensor is arranged in the water tank 3 and is used for detecting the liquid level in the water tank 3 so as to prevent the liquid in the water tank 3 from being too much or too little, and when the liquid level sensor detects that the water tank 3 overflows or lacks water, alarm information can be displayed on the operation panel 15.
Claims (8)
1. The semiconductor refrigeration water chiller with the standby control system comprises a machine body (1), wherein a refrigeration unit (2), a water tank (3), a water pump (4), a switching power supply (5), a power supply control board (6) and a temperature sensor electrically connected with the power supply control board (6) are arranged in the machine body (1), the refrigeration unit (2), the water pump (4) and the water tank (3) form a circulating water path through a water pipe (7), and the semiconductor refrigeration water chiller is characterized in that the standby control system (8) is integrated on the power supply control board (6), the refrigeration unit (2) comprises a first fan cover (201), a first radiator (202), a first semiconductor refrigeration sheet group (203), a heat exchange plate (204), a second semiconductor refrigeration sheet group (205), a second radiator (206) and a second fan cover (207) which are sequentially arranged from top to bottom, and the refrigeration unit (2) further comprises a fan (208) arranged on one side of the heat exchange plate (204);
the standby control system (8) comprises a database (801) for collecting and storing historical data, a data processing unit (802) for processing the historical data, a standby control model generating unit (803) and a chip (804), wherein the chip (804) is respectively and electrically connected with the database (801), the data processing unit (802) and the standby control model generating unit (803), and the database (801), the data processing unit (802) and the standby control model generating unit (803) are sequentially and electrically connected; the historical data comprises the working mode of the water chiller in any time period;
the standby control model generating unit (803) firstly constructs a neural network by a neural network learning method, and then trains the neural network by the processed historical data to generate a standby control model; when the temperature sensor fails, the standby control model outputs a water cooler working mode corresponding to the real-time moment according to the input real-time moment, and the power control panel (6) controls the water cooler to work according to the working mode.
2. The semiconductor refrigeration water chiller with the standby control system according to claim 1, wherein when the temperature sensor works normally, the temperature value measured by the temperature sensor is compared with a set temperature value, and if the measured temperature value is greater than the set temperature value, the water chiller starts a refrigeration mode through the power control board (6); if the measured temperature value is less than the set temperature value, the water chiller starts a heating mode through a power control board (6).
3. The semiconductor refrigeration water chiller with the standby control system according to claim 1, wherein when the temperature sensor works normally, the temperature difference measured by the temperature sensor is compared with the set temperature difference, and if the measured temperature difference is larger than the set temperature difference, the refrigeration/heating intensity of the water chiller is improved through the power control board (6); if the measured temperature difference is smaller than the set temperature difference, the cooling-water machine reduces the refrigeration/heating intensity through the power control panel (6).
4. The semiconductor refrigeration water chiller with the standby control system according to claim 1, wherein the machine body (1) is enclosed by a left cover plate (9), a rear cover plate (10), a right cover plate (11), a front plate (12), a top plate (13) and a bottom plate (14), the upper part of the front plate (12) is an inclined plane, an operation panel (15) is arranged on the inclined plane, an air inlet (16) is formed in the left cover plate (9), a filter screen (17) is arranged in front of the refrigeration unit (2) behind the air inlet (16), an air outlet (18) is formed in the right cover plate (11), and the rear cover plate (10) is provided with a water path interface and an electrical interface.
5. The semiconductor refrigeration chiller with the standby control system according to claim 4, wherein the waterway interface comprises a water outlet (19), a water inlet (20) and a water outlet (21), a flow rate sensor is arranged on the water outlet (19), and a temperature sensor is arranged on the water inlet (20).
6. The semiconductor refrigeration chiller with the standby control system according to claim 1, wherein the switching power supply (5) and the power control board (6) form a module for supplying power and controlling the water pump (4), the first semiconductor refrigeration sheet group (203), the second semiconductor refrigeration sheet group (205), the operation panel (15) and the fan (208).
7. The semiconductor refrigeration chiller with backup control system according to claim 1 wherein an overheat protector (22) is provided on each of the heat exchange plate (204), the first heat sink (202) and the second heat sink (206).
8. The semiconductor refrigeration chiller with backup control system according to claim 1 wherein a level sensor is provided in the water tank (3).
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| CN115031442A (en) * | 2022-05-18 | 2022-09-09 | 杭州大和热磁电子有限公司 | Water-cooled semiconductor water chiller |
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