CN108061420B - Temperature regulation and control method, temperature regulation and control device, refrigeration equipment and readable storage medium - Google Patents
Temperature regulation and control method, temperature regulation and control device, refrigeration equipment and readable storage medium Download PDFInfo
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- CN108061420B CN108061420B CN201711166210.8A CN201711166210A CN108061420B CN 108061420 B CN108061420 B CN 108061420B CN 201711166210 A CN201711166210 A CN 201711166210A CN 108061420 B CN108061420 B CN 108061420B
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/04—Self-contained movable devices, e.g. domestic refrigerators specially adapted for storing deep-frozen articles
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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
- F25D29/00—Arrangement or mounting of control or 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
Abstract
The invention provides a temperature regulation and control method, a temperature regulation and control device, refrigeration equipment and a readable storage medium, wherein the temperature regulation and control method comprises the following steps: when a temperature regulating instruction is received, carrying out temperature regulating operation on the heat preservation box body according to a preset first unit time temperature regulating value; when the real-time temperature of the heat preservation box body is detected to be adjusted to reach a preset adjusting temperature threshold value, controlling to stop temperature adjustment operation so as to enable the heat preservation box body and the temperature changing cavity to execute air exchange operation; and after the first preset time from the moment of stopping the temperature regulation operation, executing the temperature regulation operation again to enable the real-time temperature to be approximately the same as the temperature of the temperature change cavity, wherein the temperature regulation operation comprises a temperature reduction operation and a temperature rise operation. Through the technical scheme of the invention, the preservation function of the biological product based on the refrigeration equipment is realized.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a temperature regulation and control method, a temperature regulation and control device, a refrigeration device and a computer readable storage medium.
Background
When purifying a biological product or a blood product, the product needs to be frozen in a low-temperature environment, and then dehydrated and purified.
In the related art, the biological products or blood products are usually placed in a refrigeration device such as an ultra-low temperature refrigerator, the temperature of the ultra-low temperature refrigerator is generally below-86 ℃, and the biological products or blood products have the following defects when taken out:
after the product is taken out of the ultra-low temperature refrigerator, the product is directly placed at room temperature, so that the temperature rises suddenly, and the sudden change of the temperature can influence the activity of the biological product and even cause the change.
Disclosure of Invention
In order to solve at least one of the above technical problems, an object of the present invention is to provide a temperature control method.
Another object of the present invention is to provide a temperature control device.
It is a further object of the present invention to provide a refrigeration apparatus.
It is yet another object of the present invention to provide a computer-readable storage medium.
In order to achieve the above object, an embodiment of the first aspect of the present invention provides a temperature regulation method, including: when a temperature regulating instruction is received, carrying out temperature regulating operation on the heat preservation box body according to a preset first unit time temperature regulating value; when the real-time temperature of the heat preservation box body is detected to be adjusted to reach a preset adjusting temperature threshold value, controlling to stop temperature adjustment operation so as to enable the heat preservation box body and the temperature changing cavity to execute air exchange operation; and after the first preset time from the moment of stopping the temperature regulation operation, executing the temperature regulation operation again to enable the real-time temperature to be approximately the same as the temperature of the temperature change cavity, wherein the temperature regulation operation comprises a temperature reduction operation and a temperature rise operation.
According to the technical scheme, after the carrier is loaded into the heat preservation box body or before the carrier is taken out, when a temperature regulation instruction is detected and received, the temperature regulation operation is carried out on the heat preservation box body according to a preset first unit time temperature regulation value, the temperature of the heat preservation box body is changed in an approximately linear state by presetting the first unit time temperature regulation value, for example, 5 ℃ per minute, the real-time temperature in the heat preservation box body is finally regulated to the preset regulation temperature, when the preset regulation temperature is reached, the temperature regulation operation is stopped, and after the first preset time, the temperature regulation operation is carried out again, so that the temperature in the heat preservation box body and the temperature in the temperature changing cavity is finally approximately the same, the influence of the biological products caused by the temperature change is reduced to the minimum when the carrier in the heat preservation box body is the biological products, and the preservation function of the biological products based on the refrigeration equipment.
The preset adjusting temperature can be the temperature of the temperature changing cavity collected by the ambient temperature sensor, and can also be preset by a user.
Specifically, when a carrier, such as a biological product or a blood product, is placed in a heat preservation box, the heat preservation box is placed in a deep freezing chamber (i.e., a variable temperature chamber), an air inlet is formed in the heat preservation box, an electric air door is arranged on the air inlet, and a fan is arranged corresponding to the electric air door.
After the temperature adjusting operation is stopped, the temperature change still occurs because the heat preservation box body and the outside can generate air exchange, and therefore, after the first preset time period, the temperature adjusting operation is executed again to realize the temperature balance between the inside and the outside of the heat preservation box body.
In addition, the temperature control method provided by the embodiment of the invention also has the following additional technical characteristics:
in the above technical solution, preferably, when receiving the temperature adjustment instruction, the temperature adjustment operation is performed on the heat-insulating box body according to a preset first unit time temperature adjustment value, and the method specifically includes the following steps: and controlling to open the electric air door arranged on the heat preservation box body, and determining the running speed of the fan correspondingly arranged according to the temperature regulating value in the first unit time.
In this technical scheme, through set up the air intake on the insulation can to the correspondence sets up electronic air door, and correspond with electronic air door and set up the fan, through opening electronic air door and fan, when the refrigeration is cooled down, realize the input of air conditioning, when the heating intensifies, realize the input of steam, and then realized the temperature regulation to the insulation can, in order to satisfy the demand of biological products storage.
Specifically, when the heating operation is executed, the electric air door is opened, the fan is controlled to start to operate until the real-time temperature reaches the preset adjusting temperature, so that the temperature of the heat preservation box body is approximately linearly increased according to the first unit time temperature adjusting value, the heating requirements of different rates are met, when the carrier in the heat preservation box body is a biological product, the influence of temperature change on the activity of the biological product is reduced through approximately linearly increasing the temperature, and the applicability of carrier storage of the heat preservation box body is improved.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the heating operation is executed, the electric air door and the fan are opened to convey hot air into the heat insulation box body so as to heat the heat insulation box body, and the heat source can be provided by the heat dissipation of the condenser.
When carrying out the cooling operation, open electronic air door to control the fan and begin to operate, with refrigerate to the insulation box, reach preset regulation temperature until real-time temperature, realize that the insulation box realizes approximate linear cooling according to appointed temperature rate of change, satisfied the cooling demand of different rates, satisfied the demand that partial carrier slowly freezes simultaneously.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the cooling operation is executed, cold air is conveyed into the insulation box body by opening the electric air door and the fan, so that the insulation box body is refrigerated, and a cold source can be provided by heat dissipation of the evaporator.
In any of the above technical solutions, preferably, after a first preset time period elapses from the time of stopping the temperature adjustment operation, the temperature adjustment operation is executed again, specifically including the following steps: after a first preset time, detecting a first variable quantity of the real-time temperature; determining a second unit time temperature regulating value according to the first variable quantity; and executing temperature regulation operation according to the temperature regulation value of the second unit time until a preset regulation temperature threshold value is reached.
In the technical scheme, after a first preset time, due to temperature change generated by air flow exchange, the temperature change condition is determined according to the first change amount by detecting the first change amount, and then when the first change amount is larger, a larger second unit time temperature adjustment value is adopted, and when the first change amount is smaller, a smaller second unit time temperature adjustment value is adopted, so that when temperature adjustment is performed again, a proper temperature change rate is determined, and the influence on the activity of a biological product is further reduced.
In any of the above technical solutions, preferably, the method further includes: when the temperature adjusting operation is stopped again, the electric air door and the fan are controlled to be continuously opened for a preset time; detecting a second variable quantity of the real-time temperature within a preset time length; and controlling to close the fan when the second variation is detected to be smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature regulation value of the first unit time.
In the technical scheme, when the temperature adjustment operation is stopped again, the real-time temperature is very close to the temperature of the variable temperature cavity, the heat exchange efficiency between the heat preservation box body and the outside is reduced, the electric air door is controlled to be continuously opened at the moment, the fan is controlled to continuously operate, after the preset time, the variation of the temperature is detected, when the variation of the detected temperature is a smaller value (namely a temperature difference threshold value) relative to the variable temperature value, the fact that the real-time temperature in the heat preservation box body reaches the preset adjusting temperature is indicated, the heat preservation box body enters a constant-temperature storage stable state, the fan is controlled to be closed at the moment, the heat exchange operation is stopped, on one hand, the constant-temperature storage of carriers in the box body is realized, on the other hand, the electric air door is continuously opened.
In addition, when the variation of the temperature is detected to be a large value, for example, larger than the temperature difference threshold, the temperature changing operation is continued.
In any of the above technical solutions, preferably, the method further includes: when the fan is controlled to be closed and the electric air door is in an open state, acquiring real-time temperature according to acquisition frequency to determine a temperature difference value between the real-time temperature and the temperature of the temperature-variable cavity; and determining whether to start the fan or not according to the temperature difference value.
In the technical scheme, after the heat preservation box body enters a constant-temperature storage stable state, the real-time temperature of the heat preservation box body is regularly collected according to the collection frequency so as to detect the temperature change of the heat preservation box body, when the temperature change value is detected to be large, the fan is continuously started to perform air flow circulation so as to perform variable-temperature operation, and the stability of the temperature environment in the heat preservation box body is improved.
Specifically, the acquisition frequency may be 1 time/5 min.
An embodiment of the second aspect of the present invention provides a temperature regulation apparatus, including: the execution unit is used for executing temperature regulation operation on the heat preservation box body according to a preset first unit time temperature regulation value when receiving the temperature regulation instruction; the stopping unit is used for controlling to stop the temperature adjusting operation when the real-time temperature of the heat preservation box body is detected to be adjusted to reach a preset adjusting temperature threshold value, so that the heat preservation box body and the temperature changing cavity execute the air exchange operation; the execution unit is further to: and after the first preset time from the moment of stopping the temperature regulation operation, executing the temperature regulation operation again to enable the real-time temperature to be approximately the same as the temperature of the temperature change cavity, wherein the temperature regulation operation comprises a temperature reduction operation and a temperature rise operation.
According to the technical scheme, after the carrier is loaded into the heat preservation box body or before the carrier is taken out, when a temperature regulation instruction is detected and received, the temperature regulation operation is carried out on the heat preservation box body according to a preset first unit time temperature regulation value, the temperature of the heat preservation box body is changed in an approximately linear state by presetting the first unit time temperature regulation value, for example, 5 ℃ per minute, the real-time temperature in the heat preservation box body is finally regulated to the preset regulation temperature, when the preset regulation temperature is reached, the temperature regulation operation is stopped, and after the first preset time, the temperature regulation operation is carried out again, so that the temperature in the heat preservation box body and the temperature in the temperature changing cavity is finally approximately the same, the influence of the biological products caused by the temperature change is reduced to the minimum when the carrier in the heat preservation box body is the biological products, and the preservation function of the biological products based on the refrigeration equipment.
The preset adjusting temperature can be the temperature of the temperature changing cavity collected by the ambient temperature sensor, and can also be preset by a user.
Specifically, when a carrier, such as a biological product or a blood product, is placed in a heat preservation box, the heat preservation box is placed in a deep freezing chamber (i.e., a variable temperature chamber), an air inlet is formed in the heat preservation box, an electric air door is arranged on the air inlet, and a fan is arranged corresponding to the electric air door.
After the temperature adjusting operation is stopped, the temperature change still occurs because the heat preservation box body and the outside can generate air exchange, and therefore, after the first preset time period, the temperature adjusting operation is executed again to realize the temperature balance between the inside and the outside of the heat preservation box body.
In the above technical solution, preferably, the method further includes: and the control unit is used for controlling and opening the electric air door arranged on the heat preservation box body and determining the running speed of the fan correspondingly arranged according to the temperature regulating value in the first unit time.
In this technical scheme, through set up the air intake on the insulation can to the correspondence sets up electronic air door, and correspond with electronic air door and set up the fan, through opening electronic air door and fan, when the refrigeration is cooled down, realize the input of air conditioning, when the heating intensifies, realize the input of steam, and then realized the temperature regulation to the insulation can, in order to satisfy the demand of biological products storage.
Specifically, when the heating operation is executed, the electric air door is opened, the fan is controlled to start to operate until the real-time temperature reaches the preset adjusting temperature, so that the temperature of the heat preservation box body is approximately linearly increased according to the first unit time temperature adjusting value, the heating requirements of different rates are met, when the carrier in the heat preservation box body is a biological product, the influence of temperature change on the activity of the biological product is reduced through approximately linearly increasing the temperature, and the applicability of carrier storage of the heat preservation box body is improved.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the heating operation is executed, the electric air door and the fan are opened to convey hot air into the heat insulation box body so as to heat the heat insulation box body, and the heat source can be provided by the heat dissipation of the condenser.
When carrying out the cooling operation, open electronic air door to control the fan and begin to operate, with refrigerate to the insulation box, reach preset regulation temperature until real-time temperature, realize that the insulation box realizes approximate linear cooling according to appointed temperature rate of change, satisfied the cooling demand of different rates, satisfied the demand that partial carrier slowly freezes simultaneously.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the cooling operation is executed, cold air is conveyed into the insulation box body by opening the electric air door and the fan, so that the insulation box body is refrigerated, and a cold source can be provided by heat dissipation of the evaporator.
In any of the above technical solutions, preferably, the method further includes: the detection unit is used for detecting a first variable quantity of the real-time temperature after a first preset time length; a determining unit configured to determine a second unit time temperature adjustment value according to the first variation; the execution unit is further to: and executing temperature regulation operation according to the temperature regulation value of the second unit time until a preset regulation temperature threshold value is reached.
In the technical scheme, after a first preset time, due to temperature change generated by air flow exchange, the temperature change condition is determined according to the first change amount by detecting the first change amount, and then when the first change amount is larger, a larger second unit time temperature adjustment value is adopted, and when the first change amount is smaller, a smaller second unit time temperature adjustment value is adopted, so that when temperature adjustment is performed again, a proper temperature change rate is determined, and the influence on the activity of a biological product is further reduced.
In any of the above technical solutions, preferably, the method further includes: the control unit further includes: when the temperature adjusting operation is stopped again, the electric air door and the fan are controlled to be continuously opened for a preset time; the detection unit is further configured to: detecting a second variable quantity of the real-time temperature within a preset time length; the control unit further includes: and controlling to close the fan when the second variation is detected to be smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature regulation value of the first unit time.
In the technical scheme, when the temperature adjustment operation is stopped again, the real-time temperature is very close to the temperature of the variable temperature cavity, the heat exchange efficiency between the heat preservation box body and the outside is reduced, the electric air door is controlled to be continuously opened at the moment, the fan is controlled to continuously operate, after the preset time, the variation of the temperature is detected, when the variation of the detected temperature is a smaller value (namely a temperature difference threshold value) relative to the variable temperature value, the fact that the real-time temperature in the heat preservation box body reaches the preset adjusting temperature is indicated, the heat preservation box body enters a constant-temperature storage stable state, the fan is controlled to be closed at the moment, the heat exchange operation is stopped, on one hand, the constant-temperature storage of carriers in the box body is realized, on the other hand, the electric air door is continuously opened.
In addition, when the variation of the temperature is detected to be a large value, for example, larger than the temperature difference threshold, the temperature changing operation is continued.
In any of the above technical solutions, preferably, the method further includes: the acquisition unit is used for acquiring real-time temperature according to acquisition frequency when the fan is controlled to be closed and the electric air door is in an open state so as to determine a temperature difference value between the real-time temperature and the temperature of the temperature-variable cavity; the determination unit is further configured to: and determining whether to start the fan or not according to the temperature difference value.
In the technical scheme, after the heat preservation box body enters a constant-temperature storage stable state, the real-time temperature of the heat preservation box body is regularly collected according to the collection frequency so as to detect the temperature change of the heat preservation box body, when the temperature change value is detected to be large, the fan is continuously started to perform air flow circulation so as to perform variable-temperature operation, and the stability of the temperature environment in the heat preservation box body is improved.
Specifically, the acquisition frequency may be 1 time/5 min.
A third aspect of the present invention provides a refrigeration device, which comprises a processor, and the processor is configured to implement the steps of the temperature regulation method according to any one of the above technical solutions when executing a computer program stored in a memory.
A fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the temperature regulation method according to any one of the above-mentioned technical solutions.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic flow diagram of a temperature regulation method according to one embodiment of the invention;
FIG. 2 shows a schematic block diagram of a temperature regulation device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram illustrating a temperature control method according to another embodiment of the present invention;
FIG. 4 illustrates a partial schematic view of a refrigeration unit according to an embodiment of the present invention;
fig. 5 shows a schematic block diagram of a refrigeration device according to another embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1, a temperature control method according to an embodiment of the present invention includes: 102, when a temperature adjusting instruction is received, performing temperature adjusting operation on the heat preservation box body according to a preset first unit time temperature adjusting value; 104, when detecting that the real-time temperature of the heat preservation box body is adjusted to reach a preset adjustment temperature threshold value, controlling to stop temperature adjustment operation so as to enable the heat preservation box body and the temperature changing cavity to execute air exchange operation; and 106, after the first preset time period from the moment of stopping the temperature regulation operation, executing the temperature regulation operation again to enable the real-time temperature to be approximately the same as the temperature of the temperature change cavity, wherein the temperature regulation operation comprises a temperature reduction operation and a temperature rise operation.
According to the technical scheme, after the carrier is loaded into the heat preservation box body or before the carrier is taken out, when a temperature regulation instruction is detected and received, the temperature regulation operation is carried out on the heat preservation box body according to a preset first unit time temperature regulation value, the temperature of the heat preservation box body is changed in an approximately linear state by presetting the first unit time temperature regulation value, for example, 5 ℃ per minute, the real-time temperature in the heat preservation box body is finally regulated to the preset regulation temperature, when the preset regulation temperature is reached, the temperature regulation operation is stopped, and after the first preset time, the temperature regulation operation is carried out again, so that the temperature in the heat preservation box body and the temperature in the temperature changing cavity is finally approximately the same, the influence of the biological products caused by the temperature change is reduced to the minimum when the carrier in the heat preservation box body is the biological products, and the preservation function of the biological products based on the refrigeration equipment.
The preset adjusting temperature can be the temperature of the temperature changing cavity collected by the ambient temperature sensor, and can also be preset by a user.
Specifically, when a carrier, such as a biological product or a blood product, is placed in a heat preservation box, the heat preservation box is placed in a deep freezing chamber (i.e., a variable temperature chamber), an air inlet is formed in the heat preservation box, an electric air door is arranged on the air inlet, and a fan is arranged corresponding to the electric air door.
After the temperature adjusting operation is stopped, the temperature change still occurs because the heat preservation box body and the outside can generate air exchange, and therefore, after the first preset time period, the temperature adjusting operation is executed again to realize the temperature balance between the inside and the outside of the heat preservation box body.
In addition, the temperature control method provided by the embodiment of the invention also has the following additional technical characteristics:
in the above technical solution, preferably, when receiving the temperature adjustment instruction, the temperature adjustment operation is performed on the heat-insulating box body according to a preset first unit time temperature adjustment value, and the method specifically includes the following steps: and controlling to open the electric air door arranged on the heat preservation box body, and determining the running speed of the fan correspondingly arranged according to the temperature regulating value in the first unit time.
In this technical scheme, through set up the air intake on the insulation can to the correspondence sets up electronic air door, and correspond with electronic air door and set up the fan, through opening electronic air door and fan, when the refrigeration is cooled down, realize the input of air conditioning, when the heating intensifies, realize the input of steam, and then realized the temperature regulation to the insulation can, in order to satisfy the demand of biological products storage.
Specifically, when the heating operation is executed, the electric air door is opened, the fan is controlled to start to operate until the real-time temperature reaches the preset adjusting temperature, so that the temperature of the heat preservation box body is approximately linearly increased according to the first unit time temperature adjusting value, the heating requirements of different rates are met, when the carrier in the heat preservation box body is a biological product, the influence of temperature change on the activity of the biological product is reduced through approximately linearly increasing the temperature, and the applicability of carrier storage of the heat preservation box body is improved.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the heating operation is executed, the electric air door and the fan are opened to convey hot air into the heat insulation box body so as to heat the heat insulation box body, and the heat source can be provided by the heat dissipation of the condenser.
When carrying out the cooling operation, open electronic air door to control the fan and begin to operate, with refrigerate to the insulation box, reach preset regulation temperature until real-time temperature, realize that the insulation box realizes approximate linear cooling according to appointed temperature rate of change, satisfied the cooling demand of different rates, satisfied the demand that partial carrier slowly freezes simultaneously.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the cooling operation is executed, cold air is conveyed into the insulation box body by opening the electric air door and the fan, so that the insulation box body is refrigerated, and a cold source can be provided by heat dissipation of the evaporator.
In any of the above technical solutions, preferably, after a first preset time period elapses from the time of stopping the temperature adjustment operation, the temperature adjustment operation is executed again, specifically including the following steps: after a first preset time, detecting a first variable quantity of the real-time temperature; determining a second unit time temperature regulating value according to the first variable quantity; and executing temperature regulation operation according to the temperature regulation value of the second unit time until a preset regulation temperature threshold value is reached.
In the technical scheme, after a first preset time, due to temperature change generated by air flow exchange, the temperature change condition is determined according to the first change amount by detecting the first change amount, and then when the first change amount is larger, a larger second unit time temperature adjustment value is adopted, and when the first change amount is smaller, a smaller second unit time temperature adjustment value is adopted, so that when temperature adjustment is performed again, a proper temperature change rate is determined, and the influence on the activity of a biological product is further reduced.
In any of the above technical solutions, preferably, the method further includes: when the temperature adjusting operation is stopped again, the electric air door and the fan are controlled to be continuously opened for a preset time; detecting a second variable quantity of the real-time temperature within a preset time length; and controlling to close the fan when the second variation is detected to be smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature regulation value of the first unit time.
In the technical scheme, when the temperature adjustment operation is stopped again, the real-time temperature is very close to the temperature of the variable temperature cavity, the heat exchange efficiency between the heat preservation box body and the outside is reduced, the electric air door is controlled to be continuously opened at the moment, the fan is controlled to continuously operate, after the preset time, the variation of the temperature is detected, when the variation of the detected temperature is a smaller value (namely a temperature difference threshold value) relative to the variable temperature value, the fact that the real-time temperature in the heat preservation box body reaches the preset adjusting temperature is indicated, the heat preservation box body enters a constant-temperature storage stable state, the fan is controlled to be closed at the moment, the heat exchange operation is stopped, on one hand, the constant-temperature storage of carriers in the box body is realized, on the other hand, the electric air door is continuously opened.
In addition, when the variation of the temperature is detected to be a large value, for example, larger than the temperature difference threshold, the temperature changing operation is continued.
In any of the above technical solutions, preferably, the method further includes: when the fan is controlled to be closed and the electric air door is in an open state, acquiring real-time temperature according to acquisition frequency to determine a temperature difference value between the real-time temperature and the temperature of the temperature-variable cavity; and determining whether to start the fan or not according to the temperature difference value.
In the technical scheme, after the heat preservation box body enters a constant-temperature storage stable state, the real-time temperature of the heat preservation box body is regularly collected according to the collection frequency so as to detect the temperature change of the heat preservation box body, when the temperature change value is detected to be large, the fan is continuously started to perform air flow circulation so as to perform variable-temperature operation, and the stability of the temperature environment in the heat preservation box body is improved.
Specifically, the acquisition frequency may be 1 time/5 min.
As shown in fig. 2, a temperature control apparatus 200 according to an embodiment of the present invention includes: the execution unit 202 is used for executing temperature regulation operation on the heat preservation box body according to a preset first unit time temperature regulation value when receiving the temperature regulation instruction; a stopping unit 204, configured to control to stop the temperature adjustment operation when it is detected that the real-time temperature of the thermal insulation box body is adjusted to reach a preset adjustment temperature threshold, so that the thermal insulation box body and the temperature changing cavity perform a ventilation operation; the execution unit 202 is further configured to: and after the first preset time from the moment of stopping the temperature regulation operation, executing the temperature regulation operation again to enable the real-time temperature to be approximately the same as the temperature of the temperature change cavity, wherein the temperature regulation operation comprises a temperature reduction operation and a temperature rise operation.
According to the technical scheme, after the carrier is loaded into the heat preservation box body or before the carrier is taken out, when a temperature regulation instruction is detected and received, the temperature regulation operation is carried out on the heat preservation box body according to a preset first unit time temperature regulation value, the temperature of the heat preservation box body is changed in an approximately linear state by presetting the first unit time temperature regulation value, for example, 5 ℃ per minute, the real-time temperature in the heat preservation box body is finally regulated to the preset regulation temperature, when the preset regulation temperature is reached, the temperature regulation operation is stopped, and after the first preset time, the temperature regulation operation is carried out again, so that the temperature in the heat preservation box body and the temperature in the temperature changing cavity is finally approximately the same, the influence of the biological products caused by the temperature change is reduced to the minimum when the carrier in the heat preservation box body is the biological products, and the preservation function of the biological products based on the refrigeration equipment.
The preset adjusting temperature can be the temperature of the temperature changing cavity collected by the ambient temperature sensor, and can also be preset by a user.
Specifically, when a carrier, such as a biological product or a blood product, is placed in a heat preservation box, the heat preservation box is placed in a deep freezing chamber (i.e., a variable temperature chamber), an air inlet is formed in the heat preservation box, an electric air door is arranged on the air inlet, and a fan is arranged corresponding to the electric air door.
After the temperature adjusting operation is stopped, the temperature change still occurs because the heat preservation box body and the outside can generate air exchange, and therefore, after the first preset time period, the temperature adjusting operation is executed again to realize the temperature balance between the inside and the outside of the heat preservation box body.
In the above technical solution, preferably, the method further includes: and the control unit 206 is used for controlling and opening the electric air door arranged on the heat preservation box body, and determining the running speed of the fan correspondingly arranged according to the temperature regulating value in the first unit time.
In this technical scheme, through set up the air intake on the insulation can to the correspondence sets up electronic air door, and correspond with electronic air door and set up the fan, through opening electronic air door and fan, when the refrigeration is cooled down, realize the input of air conditioning, when the heating intensifies, realize the input of steam, and then realized the temperature regulation to the insulation can, in order to satisfy the demand of biological products storage.
Specifically, when the heating operation is executed, the electric air door is opened, the fan is controlled to start to operate until the real-time temperature reaches the preset adjusting temperature, so that the temperature of the heat preservation box body is approximately linearly increased according to the first unit time temperature adjusting value, the heating requirements of different rates are met, when the carrier in the heat preservation box body is a biological product, the influence of temperature change on the activity of the biological product is reduced through approximately linearly increasing the temperature, and the applicability of carrier storage of the heat preservation box body is improved.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the heating operation is executed, the electric air door and the fan are opened to convey hot air into the heat insulation box body so as to heat the heat insulation box body, and the heat source can be provided by the heat dissipation of the condenser.
When carrying out the cooling operation, open electronic air door to control the fan and begin to operate, with refrigerate to the insulation box, reach preset regulation temperature until real-time temperature, realize that the insulation box realizes approximate linear cooling according to appointed temperature rate of change, satisfied the cooling demand of different rates, satisfied the demand that partial carrier slowly freezes simultaneously.
The preset adjustment temperature is reached, the detected real-time temperature may be the same as the preset adjustment temperature, and the detected real-time temperature may also have a smaller preset deviation value, for example, a deviation value less than or equal to 1 ℃.
When the cooling operation is executed, cold air is conveyed into the insulation box body by opening the electric air door and the fan, so that the insulation box body is refrigerated, and a cold source can be provided by heat dissipation of the evaporator.
In any of the above technical solutions, preferably, the method further includes: the detection unit 208 is configured to detect a first variation of the real-time temperature after a first preset time period elapses; a determining unit 210 configured to determine a second unit time temperature adjustment value according to the first variation; the execution unit 202 is further configured to: and executing temperature regulation operation according to the temperature regulation value of the second unit time until a preset regulation temperature threshold value is reached.
In the technical scheme, after a first preset time, due to temperature change generated by air flow exchange, the temperature change condition is determined according to the first change amount by detecting the first change amount, and then when the first change amount is larger, a larger second unit time temperature adjustment value is adopted, and when the first change amount is smaller, a smaller second unit time temperature adjustment value is adopted, so that when temperature adjustment is performed again, a proper temperature change rate is determined, and the influence on the activity of a biological product is further reduced.
In any of the above technical solutions, preferably, the method further includes: the control unit 206 further includes: when the temperature adjusting operation is stopped again, the electric air door and the fan are controlled to be continuously opened for a preset time; the detection unit 208 is further configured to: detecting a second variable quantity of the real-time temperature within a preset time length; the control unit 206 further includes: and controlling to close the fan when the second variation is detected to be smaller than a temperature difference threshold value, wherein the electric air door is continuously in an opening state, and the temperature difference threshold value is smaller than or equal to 1/5 of the temperature regulation value of the first unit time.
In the technical scheme, when the temperature adjustment operation is stopped again, the real-time temperature is very close to the temperature of the variable temperature cavity, the heat exchange efficiency between the heat preservation box body and the outside is reduced, the electric air door is controlled to be continuously opened at the moment, the fan is controlled to continuously operate, after the preset time, the variation of the temperature is detected, when the variation of the detected temperature is a smaller value (namely a temperature difference threshold value) relative to the variable temperature value, the fact that the real-time temperature in the heat preservation box body reaches the preset adjusting temperature is indicated, the heat preservation box body enters a constant-temperature storage stable state, the fan is controlled to be closed at the moment, the heat exchange operation is stopped, on one hand, the constant-temperature storage of carriers in the box body is realized, on the other hand, the electric air door is continuously opened.
In addition, when the variation of the temperature is detected to be a large value, for example, larger than the temperature difference threshold, the temperature changing operation is continued.
In any of the above technical solutions, preferably, the method further includes: the acquisition unit 212 is used for acquiring real-time temperature according to acquisition frequency when the fan is controlled to be closed and the electric air door is in an open state so as to determine a temperature difference value between the real-time temperature and the temperature of the temperature-variable cavity; the determination unit 210 is further configured to: and determining whether to start the fan or not according to the temperature difference value.
In the technical scheme, after the heat preservation box body enters a constant-temperature storage stable state, the real-time temperature of the heat preservation box body is regularly collected according to the collection frequency so as to detect the temperature change of the heat preservation box body, when the temperature change value is detected to be large, the fan is continuously started to perform air flow circulation so as to perform variable-temperature operation, and the stability of the temperature environment in the heat preservation box body is improved.
Specifically, the acquisition frequency may be 1 time/5 min.
As shown in fig. 3, a temperature regulating method according to another embodiment of the present invention includes: step 302, the refrigeration equipment is in a running state, and when the situation that the temperature regulation operation of the heat preservation box body needs to be executed is detected, the temperature regulation type is determined; step 304, determining a temperature reduction value in unit time when the temperature reduction operation is executed; step 306, opening the electric air door and operating the fan; 308, when the preset cooling threshold is reached, closing the electric air door and stopping the fan; step 310, after unit time length passes, the electric air door is opened again, the fan is controlled to operate, whether a preset cooling threshold value is reached or not is detected, if the detection result is yes, the step 306 is returned, and if the detection result is no, the step 312 is executed; step 312, continuously opening the electric air door and the fan, operating for 2 times of unit time, and collecting a temperature change value; step 314, when the temperature change value is detected to be far smaller than the preset temperature change threshold value, controlling the fan to stop rotating, and keeping opening the electric air door; step 316, determining a temperature rise value in unit time when the temperature rise operation is executed; step 318, opening the electric air door and operating the fan; step 320, when a preset temperature rise threshold value is reached, closing the electric air door and stopping the fan; step 322, after the unit time length, re-opening the electric air door, controlling the fan to operate, detecting whether a preset cooling threshold value is reached, returning to step 318 when the detection result is yes, and entering step 324 when the detection result is no; step 324, continuously opening the electric air door and the fan, operating for 2 times of unit time, and collecting a temperature change value; and step 326, when the temperature change value is detected to be far smaller than the preset temperature change threshold value, controlling the fan to stop rotating and keeping opening the electric air door.
Referring to fig. 4, a refrigerating apparatus according to an embodiment of the present invention includes: the temperature-changing chamber can be a deep freezing chamber, a refrigerating chamber or a heating chamber, the temperature-changing chamber 404 is provided with an air inlet 406, and the electric air door 408 is arranged at the air inlet 406; the fan 410 is arranged corresponding to the electric air door 408, the fan 408 rotates when the electric air door 406 is opened to supply air to the heat preservation box 402, the first temperature sensor 412 is arranged in the heat preservation box 402, the second temperature sensor 414 is arranged in the variable-temperature chamber 402, the electric air door 408 and the fan 440 are controlled to be continuously opened and closed according to the temperature in the box collected by the first temperature sensor 442 and the ambient temperature collected by the second temperature sensor 414, so that the temperature in the box changes according to a preset first unit time temperature adjusting value, and the air inlet 406 is opened to combine the air return opening 416 and the air return hole 418 to realize air flow circulation.
Referring to fig. 2 and 4, the collecting unit 212 may be a first temperature sensor 412, and the executing unit 202, the stopping unit 204, the control unit 206, the detecting unit 208 and the determining unit 210 may be integrated in a control chip.
As shown in fig. 5, according to the refrigeration apparatus 50 of the embodiment of the present invention, the refrigeration apparatus 50 includes a processor 504, and the processor 504 is configured to implement the temperature regulation method according to any one of the above embodiments when executing the computer program stored in the memory 502.
In particular, the refrigeration device is a refrigerator or freezer.
A computer-readable storage medium according to an embodiment of the invention, on which a computer program is stored which, when being executed by a processor, carries out the steps of the temperature regulation method as set forth in any one of the above-mentioned embodiments.
The technical scheme of the invention is explained in detail above with reference to the accompanying drawings, the temperature of the heat preservation box body is changed in an approximately linear state by presetting a first unit time temperature regulation value, for example, 5 ℃ per minute, the real-time temperature in the heat preservation box body is regulated to the preset regulation temperature, the temperature regulation operation is stopped when the preset regulation temperature is reached, the temperature regulation operation is executed again after the first preset time, and finally the temperature of the heat preservation box body and the temperature change cavity is approximately the same, so that when the carrier in the heat preservation box body is a biological product, the influence of the biological product caused by the temperature change is reduced to the minimum, and the preservation function of the biological product based on the refrigeration equipment is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A temperature regulation and control method is used for refrigeration equipment, the refrigeration equipment is provided with a temperature changing cavity, and a heat preservation box body is arranged in the temperature changing cavity, and is characterized by comprising the following steps:
when a temperature regulating instruction is received, carrying out temperature regulating operation on the heat preservation box body according to a preset first unit time temperature regulating value;
when the real-time temperature of the heat preservation box body is detected to be adjusted to reach a preset adjusting temperature threshold value, controlling to stop the temperature adjusting operation so as to enable the heat preservation box body and the temperature changing cavity to execute air exchange operation;
after the first preset time period from the time of stopping the temperature adjusting operation, executing the temperature adjusting operation again to enable the real-time temperature to be approximately the same as the temperature of the temperature changing cavity,
the temperature adjusting operation comprises a temperature reduction operation and a temperature rise operation.
2. The temperature control method according to claim 1, wherein when the temperature adjustment instruction is received, the temperature adjustment operation is performed on the heat-insulating box body according to a preset first unit time temperature adjustment value, and the method specifically comprises the following steps:
and controlling to open an electric air door arranged on the heat insulation box body, and determining the running speed of the correspondingly arranged fan according to the first unit time temperature regulating value.
3. The temperature control method according to claim 1, wherein the temperature adjustment operation is executed again after a first preset time period has elapsed since the time when the temperature adjustment operation is stopped, specifically comprising the steps of:
after the first preset time, detecting a first variable quantity of the real-time temperature;
determining a second unit time temperature regulating value according to the first variable quantity;
and executing the temperature adjusting operation according to the temperature adjusting value of the second unit time until the preset adjusting temperature threshold value is reached.
4. The temperature control method according to claim 2, further comprising:
when the temperature adjusting operation is stopped again, the electric air door and the fan are controlled to be continuously opened for a preset time;
detecting a second variable quantity of the real-time temperature within the preset time length;
controlling to close the fan when the second variation is smaller than the temperature difference threshold value,
wherein the electrically operated damper is continuously in an open state, and the temperature difference threshold is less than or equal to 1/5 of the first unit time temperature adjustment value.
5. The temperature regulation method according to claim 4, further comprising:
when the fan is controlled to be closed and the electric air door is in an opening state, acquiring the real-time temperature according to the acquisition frequency to determine a temperature difference value between the real-time temperature and the temperature of the temperature-variable cavity;
and determining whether to start the fan or not according to the temperature difference value.
6. The utility model provides a temperature regulation and control device for refrigeration plant, refrigeration plant is provided with the temperature changing chamber, the temperature changing intracavity is provided with the insulation can, its characterized in that, temperature regulation and control device includes:
the execution unit is used for executing temperature regulation operation on the heat preservation box body according to a preset first unit time temperature regulation value when receiving the temperature regulation instruction;
the stopping unit is used for controlling and stopping the temperature adjusting operation when the real-time temperature of the heat preservation box body is detected to be adjusted to reach a preset adjusting temperature threshold value, so that the heat preservation box body and the temperature changing cavity execute air exchange operation;
the execution unit is further to: and after the first preset time period from the moment of stopping the temperature regulation operation, executing the temperature regulation operation again to enable the real-time temperature to be approximately the same as the temperature of the temperature changing cavity, wherein the temperature regulation operation comprises a temperature reduction operation and a temperature rise operation.
7. The temperature regulation device of claim 6, further comprising:
and the control unit is used for controlling and opening the electric air door arranged on the heat preservation box body, and determining the running speed of the fan correspondingly arranged according to the first unit time temperature regulating value.
8. The temperature regulation device of claim 7, further comprising:
the detection unit is used for detecting a first variable quantity of the real-time temperature after the first preset time length;
a determining unit configured to determine a second unit time temperature adjustment value according to the first variation;
the execution unit is further to: and executing the temperature adjusting operation according to the temperature adjusting value of the second unit time until the preset adjusting temperature threshold value is reached.
9. The temperature regulation device of claim 8, further comprising:
the control unit further includes: when the temperature adjusting operation is stopped again, the electric air door and the fan are controlled to be continuously opened for a preset time;
the detection unit is further configured to: detecting a second variable quantity of the real-time temperature within the preset time length;
the control unit further includes: controlling to close the fan when the second variation is smaller than the temperature difference threshold value,
wherein the electrically operated damper is continuously in an open state, and the temperature difference threshold is less than or equal to 1/5 of the first unit time temperature adjustment value.
10. The temperature regulating device according to claim 9, further comprising:
the acquisition unit is used for acquiring the real-time temperature according to acquisition frequency when the fan is controlled to be closed and the electric air door is in an open state so as to determine a temperature difference value between the real-time temperature and the temperature of the temperature changing cavity;
the determination unit is further configured to: and determining whether to start the fan or not according to the temperature difference value.
11. Refrigeration device, characterized in that it comprises a processor for implementing a temperature regulation method according to any one of claims 1 to 5 when executing a computer program stored in a memory.
12. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when executed by a processor, implements a method of temperature regulation as claimed in any one of claims 1 to 5.
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| CN109221083A (en) * | 2018-09-14 | 2019-01-18 | 上海理工大学 | A kind of cooling system automatically controlling rate of temperature fall |
| CN111637514A (en) * | 2020-06-09 | 2020-09-08 | 内蒙古星空能源发展有限公司 | Winter geothermal multi-energy complementary heat pump heating system and method for northern severe cold area |
| CN113418349B (en) * | 2021-06-24 | 2022-03-29 | 珠海格力电器股份有限公司 | Refrigerator and temperature control method, temperature control device and air door mechanism thereof |
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