CN117870239A - Ice making system and control method thereof - Google Patents
Ice making system and control method thereof Download PDFInfo
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- CN117870239A CN117870239A CN202311788260.5A CN202311788260A CN117870239A CN 117870239 A CN117870239 A CN 117870239A CN 202311788260 A CN202311788260 A CN 202311788260A CN 117870239 A CN117870239 A CN 117870239A
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- 238000000034 method Methods 0.000 title claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 249
- 238000001816 cooling Methods 0.000 claims abstract description 70
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000009833 condensation Methods 0.000 claims abstract description 16
- 230000005494 condensation Effects 0.000 claims abstract description 16
- 239000003507 refrigerant Substances 0.000 claims description 104
- 238000001704 evaporation Methods 0.000 claims description 39
- 230000008569 process Effects 0.000 claims description 36
- 230000008020 evaporation Effects 0.000 claims description 35
- 230000001276 controlling effect Effects 0.000 claims description 31
- 238000003306 harvesting Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
-
- 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
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
-
- 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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/04—Control means
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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)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
Abstract
The invention discloses an ice making system and a control method thereof, wherein the ice making system comprises an ice mold, a condensation assembly and a water receiving assembly; the water receiving assembly is used for conveying water in the water receiving assembly to the ice mold through the water body conveying mechanism; a pre-cooling assembly is arranged in the water receiving assembly and is used for pre-cooling the water body in the water receiving assembly; the condensing assembly is respectively connected with the ice mold and the precooling assembly, so that the technical problem of low ice making speed caused by uneven temperature of the ice mold and higher water inlet temperature in the related technology can be solved.
Description
Technical Field
The invention relates to the technical field of ice making, in particular to an ice making system and a control method thereof.
Background
Ice making systems generally include a condensing assembly, an ice melting assembly, and other accessories.
The condensing assembly comprises a compressor and a condenser, the condensing assembly is connected with an electronic expansion valve and then is connected with an ice mold (evaporator), the ice mold (evaporator) is connected with a water receiving disc, water in the water receiving disc can be sprayed onto the ice mold (evaporator) through a water diversion mechanism by a circulating water pump in the water receiving disc, and under the action of the condensing assembly, the water is condensed into a solid state on the ice mold to form ice crystals.
The ice melting assembly comprises a compressor and an ice mold (evaporator), the ice melting assembly provides heat, ice in the ice mold (evaporator) can be melted rapidly, ice cubes are separated from the ice film, and accordingly ice making circulation is completed.
The temperature difference between the upper part and the lower part of the evaporating disc is overlarge in the running process of the ice maker, so that the ice making efficiency of the part of the evaporating disc, which is close to the refrigerant inlet, is higher than that of the part, which is close to the refrigerant outlet; and the temperature of the inlet water before the ice making cycle starts has a great influence on the ice making speed. The two factors influencing the ice making speed are more obvious along with the rising of the water temperature and the ambient temperature.
Aiming at the technical problems of low ice making speed caused by uneven ice mold temperature and higher water inlet temperature in the related art, no effective solution is proposed at present.
Disclosure of Invention
The invention aims to overcome the technical defects, and provides an ice making system and a control method thereof, so as to solve the technical problem of low ice making speed caused by uneven ice mold temperature and higher water inlet temperature in the related art.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
according to one aspect of the present invention, there is provided an ice making system comprising an ice mold, a condensing assembly, and a water receiving assembly; the water receiving assembly is used for conveying water in the water receiving assembly to the ice mold through the water body conveying mechanism; a pre-cooling assembly is arranged in the water receiving assembly and is used for pre-cooling the water body in the water receiving assembly; the condensing assembly is respectively connected with the ice mold and the precooling assembly.
Optionally, the water receiving component comprises a water receiving disc, and the pre-cooling component comprises a pre-cooling coil arranged in the water receiving disc; the condensing assembly comprises a condenser and a compressor, and an exhaust port of the compressor is connected with a refrigerant inlet of the condenser; the refrigerant outlet of the condenser is respectively connected with the precooling coil and the refrigerant inlet of the ice mold; the pre-cooling coil pipe and the refrigerant outlet of the ice mold are connected to the air inlet of the compressor; and a pressure regulating mechanism for regulating the pressure of the ice mold and the refrigerant inlet of the pre-cooling coil is also arranged at the refrigerant inlet or the refrigerant outlet of the pre-cooling coil.
Optionally, the pressure regulating mechanism is a back pressure valve.
Optionally, a refrigerant electromagnetic valve for controlling the circulation and the cutting-off of the refrigerant is further arranged at the refrigerant inlet or the refrigerant outlet of the pre-cooling coil, and a water temperature sensor is further arranged in the water receiving disc; the refrigerant electromagnetic valve and the water temperature sensor are respectively connected with a controller of the ice making system in a signal way.
Optionally, the water inlet of water collector is equipped with into water solenoid valve, be equipped with level sensor in the water collector, water conveying mechanism is including setting up circulating water pump in the water collector, the controller respectively with water solenoid valve, level sensor and circulating water pump signal connection.
Optionally, the output of circulating water pump is used for spraying the water body in the water diversion mechanism on the ice mould through first branch road connection to and connect gradually the outlet of drainage solenoid valve and water collector through the second branch road, the drainage solenoid valve with controller signal connection.
Optionally, the ice making system further comprises a hot gas branch, one end of the hot gas branch is connected with the exhaust port of the compressor, and the other end of the hot gas branch is connected to the refrigerant inlet of the ice mold.
Optionally, the hot gas branch comprises a pressure switch connected in series from an exhaust port of the compressor to a refrigerant inlet of the ice mold in sequence, and an ice receiving electromagnetic valve for opening when the ice making system receives ice.
Optionally, an ice thickness sensor is further arranged on the ice mold, and the ice thickness sensor is in signal connection with a controller of the ice making system.
Optionally, a pre-throttling temperature sensing bulb is arranged between the refrigerant outlet of the condensing assembly and the refrigerant inlets of the ice mold and the pre-cooling assembly, and a post-throttling temperature sensing bulb is arranged between the refrigerant outlet of the ice mold and the pre-cooling assembly and the refrigerant inlet of the condensing assembly.
According to another aspect of the present invention, there is provided a control method of an ice making system for controlling the ice making system described above, the control method comprising:
detecting a water temperature value in the water receiving component;
comparing the water temperature value with a preset water temperature threshold value;
and if the water temperature value is greater than or equal to the water temperature threshold value, controlling the pre-cooling assembly to start, and pre-cooling the water body in the water receiving assembly.
Optionally, the method further comprises:
controlling and adjusting the refrigerant inlet pressure of the pre-cooling assembly so that the evaporation temperature of the refrigerant in the pre-cooling assembly is greater than or equal to the first evaporation temperature capable of preventing water in the water receiving assembly from condensing.
Optionally, the method further comprises: and controlling the ice mold to refrigerate according to a second evaporation temperature, wherein the first evaporation temperature is higher than the second evaporation temperature.
Optionally, the method further comprises:
detecting the thickness value of ice cubes on the ice mold;
comparing the ice thickness value with a preset ice thickness threshold value;
and if the ice block thickness value is greater than or equal to the ice block thickness threshold value, controlling an ice receiving assembly of the ice making system to start receiving ice.
Optionally, during the ice harvesting process, the method further comprises:
and controlling the water receiving assembly to feed water, and controlling the pre-cooling assembly to pre-cool the water body in the water receiving assembly, so that the water body is used for the next ice making process after the ice receiving process is finished.
Optionally, the ice receiving component includes a compressor, and the ice receiving component for controlling the ice making system starts ice receiving specifically includes: and controlling the conduction of a hot gas branch between the exhaust port of the compressor and the refrigerant inlet of the ice mold so as to enable hot gas discharged by the compressor to be introduced into the ice mold.
The invention provides an ice making system which comprises an ice mold, a condensation assembly and a water receiving assembly, wherein the ice mold is arranged on the condensation assembly; the water receiving assembly is used for conveying water in the water receiving assembly to the ice mold through the water body conveying mechanism, and a precooling assembly is arranged in the water receiving assembly and is used for precooling water in the water receiving assembly; the condensing assembly is respectively connected with the ice mold and the precooling assembly, namely, the refrigerant output by the condensing assembly is directly output to the ice mold for refrigeration on one hand, and is output to the precooling assembly for precooling the water body to be conveyed to the surface of the ice mold on the other hand, at the moment, both the ice mold and the precooling assembly play a role of an evaporator, under the technical scheme of the double evaporators, the precooling assembly can precool the water body to be conveyed to the surface of the ice mold, so that the problem of low ice making rate caused by overhigh water temperature in the water receiving assembly can be prevented, and on the other hand, the water body can be frozen faster after being conveyed to the ice mold, and is not easily influenced by uneven temperature of the refrigerant inlet and outlet of the ice mold, thereby the technical problem of low ice making rate caused by uneven temperature of the ice mold and higher water inlet temperature in the related art can be solved.
Drawings
Fig. 1 is a schematic structural diagram of an ice making system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a water flow direction system of an ice making system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control system of an ice making system according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a control method of an ice making system according to an embodiment of the present invention;
FIG. 5 is a flow chart of a control method of an ice making system according to another embodiment of the present invention;
in the figure:
1-an ice mold; 2-a water receiving disc; 3-a water inlet; 4-a water inlet electromagnetic valve; 5-a liquid level sensor; 6-a circulating water pump; 7-a water dividing mechanism; 8-a drainage solenoid valve; 9-a water outlet; 10-an ice thickness sensor; 11-pre-cooling coil; 12-a condenser; 13-a compressor; 14-exhausting a temperature sensing bulb; 15-condensing a thermal bulb; 16-condensing fans; 17-drying the filter; 18-an electronic expansion valve; 19-a pre-throttling bulb; 20-a throttle post-temperature sensing bulb; 21-a first pre-cooling solenoid valve; 22-a second precooling electromagnetic valve; 23-back pressure valve; 24-a water temperature sensor; 25-hot gas branch; 26-pressure switch; 27-an ice-collecting electromagnetic valve; 28-refrigerant inlet of precooling coil; 29-refrigerant outlet of the pre-cooling coil; 30-a controller; 31-refrigerant solenoid valve.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
In the related art, the ice making system has the technical problems of low ice making speed caused by uneven temperature of an ice mold and higher water inlet temperature. Currently, there is no better solution.
Based on the above problems, the present invention provides an ice making system and a control method thereof, so as to solve the technical problems of uneven ice mold temperature and higher water inlet temperature in the related art. The following is a detailed description.
Referring to fig. 1 to 3, an ice making system according to an embodiment of the present invention includes an ice mold 1, a condensing assembly, and a water receiving assembly. The water receiving assembly is used for conveying water in the water receiving assembly to the ice mold 1 through the water body conveying mechanism; a pre-cooling assembly is arranged in the water receiving assembly and is used for pre-cooling the water body in the water receiving assembly; the condensing assembly is respectively connected with the ice mold 1 and the precooling assembly.
In the technical scheme, the ice mold 1 and the precooling assembly both play a role of an evaporator in the ice making system, and respectively receive the refrigerant condensed by the condensing assembly. The refrigerant in the ice mold 1 is used for refrigerating the water body conveyed by the water receiving assembly to form ice cubes, namely, the ice making process is executed. The precooling component precools the water body in the water receiving component through the refrigerant, so that the water body in the water receiving component can be guaranteed to be quickly frozen after being conveyed to the surface of the ice mold 1, the influence of uneven temperature of the refrigerant inlet and outlet of the ice mold 1 is not easy to occur, and the integral ice making efficiency of the ice making system is improved.
As an example, the water receiving assembly includes a water receiving tray 2, and further, a water inlet 3 and a water inlet solenoid valve 4 are provided at an upstream side of the water receiving tray 2 for delivering a water body for ice making into the water receiving tray 2. The water pan 2 is also provided with a liquid level sensor 5 and a circulating water pump 6, the liquid level sensor 5 is used for detecting the water level in the water pan 2, and through monitoring the water level, on one hand, the water pan 2 can be controlled to input and output proper water flow, and on the other hand, the precooling temperature matched with the water amount of the water pan 2 can be configured for the water pan 2. The downstream end of the circulating water pump 6 is connected with a water diversion mechanism 7 which is used as a water body conveying mechanism for spraying the water body in the water pan 2 onto the surface of the ice mold 1 to make ice. When receiving ice, the circulating water pump 6 stops working, namely, spraying water on the ice mold 1 is stopped.
Furthermore, in some embodiments, the output end of the circulating water pump 6 is divided into two branches, wherein the first branch is connected to the water dividing mechanism 7, and the second branch is connected to the water outlet 9 through the water outlet solenoid valve 8, so that the unused or redundant water body can be discharged out of the water receiving disc 2, and the excessive water amount of the water receiving disc 2 is prevented.
As an example, the ice mold 1 is an evaporating ice tray, and the ice thickness sensor 10 is disposed at a preset position along the thickness direction of the evaporating ice tray, and when ice crystals on the surface of the ice mold 1 are condensed to a preset thickness, the ice thickness sensor 10 collects thickness signals so as to start the ice receiving assembly, execute an ice receiving process, and realize intelligent sensing and control of the ice receiving process.
As an example, the precooling assembly comprises a precooling coil 11 arranged in the water pan 2, the condensing assembly comprises a condenser 12 and a compressor 13, an exhaust port of the compressor 13 is provided with an exhaust temperature sensing bulb 14 for detecting exhaust temperature, the exhaust port of the compressor 13 is further connected with a refrigerant inlet of the condenser 12, compressed refrigerant is input into the condenser 12 for condensation, a condensation temperature sensing bulb 15 and a condensation fan 16 are further arranged at the condenser, the condensation temperature sensing bulb is used for monitoring condensation temperature, and the condensation fan is used for conveying air quantity to the condenser 12.
The refrigerant outlet of the condenser 12 is respectively connected with the precooling coil 11 and the refrigerant inlet of the ice mold 1 through the drying filter 17 and the electronic expansion valve 18, the condensed refrigerant is conveyed to the precooling coil 11, the water body in the water receiving tray 2 is precooled, and the condensed refrigerant is conveyed to the ice mold 1 for direct refrigeration. The refrigerant outlets of the pre-cooling coil 11 and the ice mold 1 are connected to the air inlet of the compressor 13, so that the evaporated refrigerant after the pre-cooling process of the pre-cooling coil 11 is returned to the condensing assembly again for condensation, and the refrigerant after the evaporation of the ice mold 1 is returned to the condensing assembly again, thereby realizing the circulation of the refrigerant.
In addition, the pre-throttling temperature sensing bulb 19 and the post-throttling temperature sensing bulb 20 are respectively arranged at the refrigerant inlet and the refrigerant outlet of the pre-cooling coil 11 and the ice mold 1 and used for monitoring and adjusting the temperature of the outlet of the evaporator before and after throttling, thereby being beneficial to further optimizing the operation efficiency of the evaporator and improving the overall performance of the system.
The refrigerant inlet 28 and the refrigerant outlet 29 of the pre-cooling coil are respectively provided with a first pre-cooling electromagnetic valve 21 and a second pre-cooling electromagnetic valve 22 for controlling the on-off of the refrigerant so as to control the pre-cooling coil 11 to be filled with the refrigerant when the pre-cooling process needs to be started and cut off when the pre-cooling does not need to be started.
In some embodiments, a pressure adjusting mechanism for adjusting the pressure of the ice mold 1 and the refrigerant inlet of the pre-cooling coil 11 is further arranged at the refrigerant inlet or the refrigerant outlet of the pre-cooling coil 11. Since the refrigerant inlet pressure is related to the evaporation temperature, the evaporation temperature of the ice mold 1 and the precooling coil 11 can be changed by adjusting the refrigerant inlet pressure of the ice mold 1 and the precooling coil 11, so that the problem that the water body of the water pan 2 freezes before being conveyed to the ice mold 1 due to the fact that the evaporation temperature of the precooling coil 11 is too low can be prevented. Generally, the lower the evaporation pressure, the lower the evaporation temperature, so in some embodiments, the pressure of the refrigerant inlet of the pre-cooling coil 11 may be increased to a temperature that can prevent the water in the water pan 2 from freezing, for example, not less than 0 ℃, so as to prevent the problem of pre-freezing caused by direct pre-cooling of the water by the pre-cooling assembly.
On the other hand, the pressure difference can be formed by adjusting the pressure of the refrigerant inlets of the ice mold 1 and the pre-cooling coil 11 through the pressure adjusting mechanism, and the pressure difference of the refrigerating system is created in the process of receiving ice under the condition that the total flow of the refrigerant is less reduced, so that the exhaust temperature and the overall performance of the compressor 13 are improved, the ice melting speed of the evaporation ice tray in the process of receiving ice is improved, and the ice receiving speed is improved.
In some embodiments, the pressure regulating mechanism is a back pressure valve 23 disposed at the refrigerant outlet of the pre-cooling coil 11.
Alternatively, the pressure regulating mechanism is a back pressure valve 23. The opening degree or the opening angle of the back pressure valve 23 is adjusted, so that the flow resistance of the refrigerant in the pipeline can be changed, the pressure in the pipeline is controlled, and the pressure adjusting effect is realized. When the pressure in the pipeline is lower than the set value, the valve core is opened to increase the flow of the refrigerant, so that the pressure in the pipeline is increased. In this way, the back pressure valve 23 can be timely adjusted according to the pressure change of the refrigerant, so that the pressure in the pipeline is kept stable, and the accurate and stable control of the pressure of the precooling assembly and the refrigerant inlet of the ice mold 1 and the pressure difference between the precooling assembly and the ice mold 1 is realized.
Further, the ice making system further comprises a controller 30, a refrigerant solenoid valve 31 (such as the first precooling solenoid valve 21 and the second precooling solenoid valve 22 described in the previous embodiments) for controlling the circulation and cutoff of the refrigerant is further arranged at the refrigerant inlet or the refrigerant outlet of the precooling coil 11, and a water temperature sensor 24 is arranged in the water receiving tray 2; the controller 30 is respectively connected with the refrigerant electromagnetic valve 31 and the water temperature sensor 24 in a signal manner, when the water temperature sensor 24 detects that the temperature value of the water body exceeds a preset temperature threshold value, the controller 30 can timely control the opening of the refrigerant electromagnetic valve 31, so that a precooling process is started timely, the ice making speed is improved timely, and the intelligence and timeliness of ice making speed control are improved. In addition, it should be understood that various solenoid valves, temperature sensing bags, etc. described in the above embodiments may also be signal connected to the controller 30, so that the controller 30 controls the corresponding components.
Optionally, the ice making system further comprises a hot gas branch 25, one end of the hot gas branch 25 is connected to the exhaust port of the compressor 13, and the other end is connected to the refrigerant inlet of the ice mold 1. For example, one end of the hot gas branch is connected to a pipe joint between the discharge port of the compressor 13 and the refrigerant inlet of the condenser 12, and the other end is connected to a pipe joint between the refrigerant outlet of the condenser 12 and the refrigerant inlets of the ice mold 1 and the pre-cooling coil 11. By conducting the hot gas branch 25, the hot gas discharged from the compressor 13 can be delivered to the ice mold 1 to melt ice crystals on the surface of the ice mold 1, i.e., to perform an ice harvesting process. As described in the foregoing embodiment, the dual evaporator scheme adopted in the embodiment of the present invention can create a pressure difference of the refrigeration system during the ice harvesting process, and improve the exhaust temperature and the overall performance of the compressor 13, so as to improve the ice melting speed of the evaporation ice tray during the ice harvesting process, and improve the ice harvesting speed compared with other hot gas bypass schemes in the related art.
Optionally, the hot gas branch 25 includes a pressure switch 26 sequentially connected in series from the exhaust port of the compressor 13 to the refrigerant inlet of the ice mold 1, and an ice receiving solenoid valve 27 for opening when the ice making system receives ice. The pressure switch 26 may monitor and control the discharge pressure of the compressor 13. When the discharge pressure of the compressor 13 exceeds a predetermined value, the pressure switch 26 will trigger an alarm or protection device to prevent damage to the compressor 13 and the system from excessive pressure. Meanwhile, the pressure switch 26 can also be used for controlling the starting and stopping of the compressor 13, so as to ensure the normal operation of the system. The ice receiving solenoid valve 27 is opened during the ice receiving process and closed during the ice making process to realize automatic switching control of the ice making and receiving processes.
The embodiment of the invention also provides a control method of the ice making system, which specifically comprises the following steps in combination with fig. 4 as an example:
step S101, detecting a water temperature value in the water receiving assembly.
In step S101, the temperature of the water body therein may be collected by the water temperature sensor 24 provided in the drip tray 2 as described in the previous embodiment.
Step S103, comparing the water temperature value with a preset water temperature threshold value.
And step 105, if the water temperature value is greater than or equal to the water temperature threshold value, controlling the pre-cooling assembly to start, and pre-cooling the water body in the water receiving assembly.
Specifically, when the water temperature value in the water pan 2 is greater than or equal to the preset water temperature threshold value, the first precooling electromagnetic valve 21 and the second precooling electromagnetic valve 22 are controlled to be opened, so that the refrigerant flows into the precooling coil 11 to precool the water body in the water pan 2.
Optionally, the method further comprises:
step S107, controlling and adjusting the refrigerant inlet pressure of the pre-cooling assembly so that the evaporation temperature of the refrigerant in the pre-cooling assembly is greater than or equal to the first evaporation temperature capable of preventing the condensation of the water in the water receiving assembly.
As described in the foregoing embodiment, the precooling coil 11 directly precools the water body in the water receiving tray 2 by the refrigerant, so as to avoid direct condensation before entering the surface of the ice mold 1, the refrigerant inlet pressure of the precooling assembly can be controlled and adjusted, so that the evaporation temperature of the refrigerant in the precooling assembly is greater than or equal to the first evaporation temperature capable of preventing condensation of the water body in the water receiving assembly, for example, the evaporation temperature is greater than or equal to 0 ℃, and advanced icing is prevented.
Optionally, the control method further includes: the ice mold 1 is controlled to refrigerate according to a second evaporation temperature, wherein the first evaporation temperature is larger than the second evaporation temperature. Because the water on the surface of the ice mold 1 is circulating water, the freezing problem does not exist, and therefore, the low evaporation temperature lower than the first evaporation temperature, namely the second evaporation temperature, can be used for indirect precooling, and the precooling time is shortened as a whole.
Specifically, the back pressure valve 23 can be used for adjusting the resistance at the inlets of the two evaporators, so that the on-way resistance of the pipelines of the ice mold 1 and the pre-cooling coil 11 is changed, the pressure of the refrigerant inlets of the two evaporators is changed, the evaporation temperatures of the inlets of the two evaporators are changed, and the same refrigeration system and different evaporation temperatures are realized. Since the higher the resistance, the lower the evaporation pressure and the lower the evaporation temperature, the resistance of the pre-cooling coil 11 can be reduced by the back pressure valve 23 to make the evaporation temperature higher, and the resistance of the ice mold 1 can be increased to make the evaporation temperature lower.
Optionally, the control method further includes:
step S109, detecting the thickness value of ice cubes on the ice mold 1;
in step S109, the thickness value of the ice crystals condensed on the surface of the ice mold 1 can be detected by the ice thickness sensor 10 described in the above embodiment.
Step S111, comparing the ice thickness value with a preset ice thickness threshold;
in step S113, if the ice thickness value is greater than or equal to the ice thickness threshold, the ice receiving assembly of the ice making system is controlled to start receiving ice.
The ice receiving can be controlled in time when the ice thickness reaches the preset thickness value by detecting the ice thickness value, so that the next ice making cycle can be started as soon as possible, and the ice making efficiency is improved.
As an example, the ice harvesting assembly includes the compressor 13, and in step S113, the ice harvesting assembly controlling the ice making system starts harvesting ice, specifically includes: the hot gas branch 25 between the exhaust port of the compressor 13 and the refrigerant inlet of the ice mold 1 is controlled to be conducted so that hot gas discharged from the compressor 13 is led into the ice mold 1. The specific structure and function of the hot gas bypass has been described in the above embodiments and will not be described in detail here.
Optionally, during the ice harvesting process, the method further comprises:
step S115, controlling the water receiving assembly to feed water, and controlling the pre-cooling assembly to pre-cool the water body in the water receiving assembly, so that the water body is used for the next ice making process after the ice receiving process is finished.
For example, in the process of receiving ice, the circulating water pump 6 can be controlled to be closed, the water inlet electromagnetic valve 4 of the water receiving disc 2 is controlled to be opened, water is supplemented into the water receiving disc 2, and at the same time, the refrigerant electromagnetic valve of the precooling coil 11 is controlled to be opened, and refrigerant is introduced into the water receiving disc to precool. Therefore, when the ice receiving process is finished, the precooled water body of the ice making process of the next period is started, and after the ice receiving process is finished, the precooled water body can be directly sprayed onto the ice mold 1 to execute the ice making process, so that the ice making efficiency is improved.
In combination with fig. 5, a control method of an ice making system according to another embodiment of the present invention specifically includes:
after the system control method is started, the parameters detected in the ice making process at least comprise the water temperature value t of the actual water receiving disc 2 Actual water temperature value of water pan 2 Actual ice thickness value h Actual ice thickness value 。
Setting the temperature value t of the water receiving disc 2 Setting the temperature value of the water receiving disc 2 Setting the ice thickness value h Setting ice thickness value The initial set values of the unit of the ice making system are respectively reference data obtained by testing under standard working conditions and are used for running the unit.
During the operation of the device, t is set Setting the temperature value of the water receiving disc 2 、h Setting ice thickness value The rest load is operated according to fixed logic.
Then, the temperature sensor of the water pan 2 detects the actual water temperature t of the water pan 2 Actual water temperature value of water pan 2 By setting the temperature value t of the water receiving disc 2 Setting the temperature value of the water receiving disc 2 And comparing, judging whether the unit needs to enter or exit the precooling process. Specifically, if t Actual water temperature value of water pan 2 ≥t Setting the temperature value of the water receiving disc 2 And starting a precooling process, otherwise, executing the normal ice making process of the ice mold 1.
In the pre-cooling process, the solenoid valve at the inlet and outlet of the pre-cooling coil 11 is controlled to be opened, water in the water receiving disc 2 is directly pre-cooled, and whether the water is t is judged at intervals of t Actual water temperature value of water pan 2 ≥t Setting the temperature value of the water receiving disc 2 If yes, the pre-cooling is continued, and if not, the ice making process is started.
During the ice making process, the actual ice thickness value h is detected by the ice thickness sensor 10 Actual ice thickness value Through setting the ice thickness value h Setting ice thickness value And comparing, judging whether the unit needs to enter or exit the ice receiving process. Specifically, if h Actual ice thickness value ≥h Setting ice thickness value And starting the ice collecting process, and if not, continuing the ice making process. In the ice making process, if the pre-cooling coil 11 does not need pre-cooling, the inlet and outlet solenoid valves of the pre-cooling coil 11 are controlled to be closed, and the unit operates according to conventional logic.
When the unit enters an ice collecting process, the circulating water pump 6 is controlled to be closed; the inlet and outlet electromagnetic valves of the pre-cooling coil 11 are opened, the back pressure valve 23 is opened, pre-cooling is started, the water inlet electromagnetic valve 4 is controlled to be synchronously opened, and water inlet is started; and controlling the opening of the ice receiving electromagnetic valve, and heating the ice film to start the ice removing process. Then detect if it is h Actual ice thickness value ≤h Setting ice thickness value If not, continuing to collect ice, and if so, restarting the ice making cycle.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be comprehended within the scope of the present application.
Claims (16)
1. An ice making system is characterized by comprising an ice mold (1), a condensation assembly and a water receiving assembly; the water receiving assembly is used for conveying water in the water receiving assembly to the ice mold (1) through a water body conveying mechanism; a pre-cooling assembly is arranged in the water receiving assembly and is used for pre-cooling the water body in the water receiving assembly; the condensing assembly is respectively connected with the ice mold (1) and the precooling assembly.
2. Ice-making system according to claim 1, wherein the water-receiving assembly comprises a water-receiving tray (2), the pre-cooling assembly comprising a pre-cooling coil (11) arranged within the water-receiving tray (2); the condensing assembly comprises a condenser (12) and a compressor (13), and an exhaust port of the compressor (13) is connected with a refrigerant inlet of the condenser (12); the refrigerant outlet of the condenser (12) is respectively connected with the precooling coil (11) and the refrigerant inlet of the ice mold (1); the pre-cooling coil (11) and the refrigerant outlet of the ice mold (1) are connected to the air inlet of the compressor (13); the pressure adjusting mechanism for adjusting the pressure of the refrigerant inlet of the ice mold (1) and the pressure of the refrigerant inlet of the pre-cooling coil (11) is further arranged at the refrigerant inlet or the refrigerant outlet of the pre-cooling coil (11).
3. Ice making system according to claim 2, wherein the pressure regulating mechanism is a back pressure valve (23).
4. The ice making system according to claim 2, wherein a refrigerant solenoid valve for controlling the circulation and cutting off of a refrigerant is further arranged at a refrigerant inlet or a refrigerant outlet of the pre-cooling coil (11), and a water temperature sensor (24) is further arranged in the water receiving disc (2); the refrigerant electromagnetic valve and the water temperature sensor (24) are respectively connected with a controller of the ice making system in a signal way.
5. The ice making system according to claim 4, wherein the water inlet (3) of the water receiving tray (2) is provided with a water inlet electromagnetic valve (4), a liquid level sensor (5) is arranged in the water receiving tray (2), the water body conveying mechanism comprises a circulating water pump (6) arranged in the water receiving tray (2), and the controller is respectively connected with the water inlet electromagnetic valve (4), the liquid level sensor (5) and the circulating water pump (6) through signals.
6. The ice making system according to claim 5, wherein the output end of the circulating water pump (6) is connected with a water dividing mechanism for spraying water on the ice mold (1) through a first branch, and is sequentially connected with a water draining electromagnetic valve (8) and a water draining outlet (9) of a water receiving disc through a second branch, and the water draining electromagnetic valve (8) is in signal connection with the controller.
7. Ice making system according to claim 2, characterised in that it further comprises a hot gas branch (25), one end of the hot gas branch (25) being connected to the exhaust of the compressor (13) and the other end being connected to the refrigerant inlet of the ice mould (1).
8. Ice making system according to claim 7, characterised in that the hot gas branch (25) comprises a pressure switch (26) connected in series in sequence from the discharge of the compressor (13) to the refrigerant inlet of the ice mould (1), and an ice receiving solenoid valve (27) for opening when the ice making system receives ice.
9. Ice making system according to claim 7 or 8, characterised in that the ice mould (1) is further provided with an ice thickness sensor (10), which ice thickness sensor (10) is in signal connection with a controller of the ice making system.
10. Ice making system according to claim 1, characterised in that a pre-throttling bulb (19) is arranged between the refrigerant outlet of the condensation assembly and the refrigerant inlet of the ice mould (1) and the pre-cooling assembly, and a post-throttling bulb (20) is arranged between the refrigerant outlet of the ice mould (1) and the pre-cooling assembly and the refrigerant inlet of the condensation assembly.
11. A control method of an ice making system for controlling the ice making system according to any one of claims 1 to 10, said control method comprising:
detecting a water temperature value in the water receiving component;
comparing the water temperature value with a preset water temperature threshold value;
and if the water temperature value is greater than or equal to the water temperature threshold value, controlling the pre-cooling assembly to start, and pre-cooling the water body in the water receiving assembly.
12. The control method of an ice making system according to claim 11, wherein said method further comprises:
controlling and adjusting the refrigerant inlet pressure of the pre-cooling assembly so that the evaporation temperature of the refrigerant in the pre-cooling assembly is greater than or equal to the first evaporation temperature capable of preventing water in the water receiving assembly from condensing.
13. The control method of an ice making system according to claim 12, wherein said method further comprises: and controlling the ice mold to refrigerate according to a second evaporation temperature, wherein the first evaporation temperature is higher than the second evaporation temperature.
14. The control method of an ice making system according to claim 11, wherein said method further comprises:
detecting the thickness value of ice cubes on the ice mold;
comparing the ice thickness value with a preset ice thickness threshold value;
and if the ice block thickness value is greater than or equal to the ice block thickness threshold value, controlling an ice receiving assembly of the ice making system to start receiving ice.
15. The method of controlling an ice making system according to claim 14, wherein during the ice harvesting process, the method further comprises:
and controlling the water receiving assembly to feed water, and controlling the pre-cooling assembly to pre-cool the water body in the water receiving assembly, so that the water body is used for the next ice making process after the ice receiving process is finished.
16. The method of controlling an ice making system according to claim 14 or 15, wherein the ice receiving assembly includes a compressor, and the controlling the ice receiving assembly of the ice making system starts receiving ice, specifically includes: and controlling the conduction of a hot gas branch between the exhaust port of the compressor and the refrigerant inlet of the ice mold so as to enable hot gas discharged by the compressor to be introduced into the ice mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311788260.5A CN117870239A (en) | 2023-12-22 | 2023-12-22 | Ice making system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311788260.5A CN117870239A (en) | 2023-12-22 | 2023-12-22 | Ice making system and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117870239A true CN117870239A (en) | 2024-04-12 |
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ID=90594021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311788260.5A Pending CN117870239A (en) | 2023-12-22 | 2023-12-22 | Ice making system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117870239A (en) |
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2023
- 2023-12-22 CN CN202311788260.5A patent/CN117870239A/en active Pending
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