CN111679701A - Temperature control system for refrigeration device and temperature control method for refrigeration device - Google Patents
Temperature control system for refrigeration device and temperature control method for refrigeration device Download PDFInfo
- Publication number
- CN111679701A CN111679701A CN202010545445.3A CN202010545445A CN111679701A CN 111679701 A CN111679701 A CN 111679701A CN 202010545445 A CN202010545445 A CN 202010545445A CN 111679701 A CN111679701 A CN 111679701A
- Authority
- CN
- China
- Prior art keywords
- power supply
- temperature
- regulating valve
- controller
- refrigerating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005057 refrigeration Methods 0.000 title claims description 85
- 239000011232 storage material Substances 0.000 claims abstract description 102
- 238000001514 detection method Methods 0.000 claims abstract description 93
- 230000001105 regulatory effect Effects 0.000 claims abstract description 89
- 230000001276 controlling effect Effects 0.000 claims description 19
- 238000013507 mapping Methods 0.000 claims description 11
- 238000004378 air conditioning Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000246 remedial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a temperature control system of a refrigerating device and a temperature control method of the refrigerating device, wherein the temperature control system of the refrigerating device comprises a power supply, an electric power storage supply and a detection control device; the output end of the power supply and the output end of the electric power storage supply are respectively connected with the power supply end of the detection control device; the detection end of the detection control device is connected with the output end of the power supply, and the output end of the detection control device is connected with the controlled end of the regulating valve of the refrigerating device. According to the technical scheme, when the power supply of the refrigerating device is powered off, the detection control device can control the regulating valve of the refrigerating device to be closed according to the electric energy provided by the storage power supply, so that the cold storage material releases cold energy, the indoor temperature of the refrigerating device is effectively controlled through the cold energy released by the cold storage material, and indoor products are prevented from being rotted and deteriorated.
Description
Technical Field
The invention relates to the technical field of temperature control, in particular to a temperature control system of a refrigerating device and a temperature control method of the refrigerating device.
Background
Refrigeration units such as refrigerated trucks are often used to store or transport products that require refrigeration, such as dairy products, vegetables and fruits, seafood meats, and vaccine drugs, among others. However, in the process of storing or transporting products, once the power supply of the refrigeration device is cut off, the indoor temperature of the refrigeration device is increased, so that the indoor products are rotten and deteriorated, and great economic loss is brought to users.
Disclosure of Invention
The invention provides a temperature control system of a refrigerating device and a temperature control method of the refrigerating device, aiming at effectively controlling the indoor temperature when a power supply of the refrigerating device is powered off so as to avoid indoor products from rotting and deteriorating due to overhigh indoor temperature.
To achieve the above object, the present invention provides a temperature control system of a refrigerator including: the power supply, the storage power supply and the detection control device;
the output end of the power supply and the output end of the electric power storage supply are respectively connected with the power supply end of the detection control device; the detection end of the detection control device is connected with the output end of the power supply, and the output end of the detection control device is connected with the controlled end of the regulating valve of the refrigerating device;
and the detection control device is used for controlling the regulating valve of the refrigerating device to be closed according to the electric energy provided by the storage power supply when the power supply is detected to be powered off, so that the cold storage material of the refrigerating device releases cold energy.
Optionally, the detection control device comprises a power failure detection device and a controller;
the output end of the power supply and the output end of the electric power storage supply are respectively connected with the power end of the controller, and the signal output end of the controller is connected with the controlled end of the regulating valve of the refrigerating device; the input end of the power failure detection device is connected with the output end of the power supply, and the output end of the power failure detection device is connected with the detection end of the controller;
the power failure detection device is used for generating a power failure signal and transmitting the power failure signal to the controller when detecting that the power supply is powered off;
and the controller is used for outputting a control signal corresponding to the power-off signal to the regulating valve of the refrigerating device according to the electric energy provided by the electric power storage power supply so as to control the regulating valve of the refrigerating device to be closed and enable the cold storage material of the refrigerating device to release cold energy.
Optionally, the temperature control system of the refrigeration device further comprises a temperature detection device; the temperature detection device is connected with a signal input end of the controller;
the temperature detection device is used for detecting the indoor temperature of the refrigerating device and transmitting the detected indoor temperature to the controller;
the controller is also used for adjusting the closing position of the adjusting valve according to the indoor temperature so as to adjust the cold energy released by the cold storage material.
Optionally, the temperature detection device is further configured to detect an outdoor temperature of the refrigeration device and transmit the detected outdoor temperature to the controller;
the controller is also used for adjusting the closing position of the adjusting valve according to the indoor temperature and the outdoor temperature so as to adjust the cold energy released by the cold storage material.
Optionally, the temperature control system of the refrigeration device further comprises an alarm device, and the alarm device is electrically connected with the controller.
In order to achieve the above object, the present invention further provides a temperature control method for a refrigeration apparatus, which is applied to a temperature control system of the refrigeration apparatus, the temperature control method for the refrigeration apparatus comprising the steps of:
judging whether a power supply of the refrigerating device is powered off or not;
and when the power supply is powered off, controlling a regulating valve of the refrigerating device to be closed so as to enable a cold storage material of the refrigerating device to release cold energy.
Optionally, the step of controlling a regulating valve of the refrigeration device to be closed when the power supply is powered off so that cold storage material of the refrigeration device releases cold energy comprises:
when the power supply is powered off, acquiring the indoor temperature of the refrigerating device;
determining the closed position of the regulating valve according to the indoor temperature of the refrigerating device;
and controlling the regulating valve to be closed according to the determined closed position so that the cold storage material of the cold storage device releases cold energy corresponding to the closed position.
Optionally, the step of determining the closed position of the regulating valve according to the indoor temperature of the refrigeration device comprises:
acquiring attribute information of a cold storage material of the refrigeration device;
determining a mapping table corresponding to attribute information of a cold storage material of the refrigeration device;
determining a closed position of a regulating valve corresponding to an indoor temperature of the refrigerator from the map.
Optionally, the step of controlling a regulating valve of the refrigeration device to be closed when the power supply is powered off so that cold storage material of the refrigeration device releases cold energy comprises:
when the power supply is powered off, acquiring the indoor temperature and the outdoor temperature of the refrigerating device;
calculating a temperature difference between the outdoor temperature and the indoor temperature;
determining a closed position of the regulating valve according to the temperature difference;
and controlling the regulating valve to be closed according to the determined closed position so that the cold storage material of the cold storage device releases cold energy corresponding to the closed position.
Optionally, after the step of determining whether the power supply of the refrigeration device is powered off, the method further includes:
and when the power supply is powered off, giving an alarm prompt to a preset alarm device.
According to the technical scheme, the power supply state of the power supply is detected by the detection control device, when the power supply is detected to be powered off, the detection control device controls the regulating valve of the refrigerating device to be closed under the action of electric energy provided by the power storage power supply to link the display of cold storage materials around the refrigerating device air conditioning unit so as to release cold energy, the indoor temperature of the refrigerating device is effectively controlled through the cold energy released by the cold storage materials, and the phenomenon that indoor products are rotten and deteriorated due to the fact that the indoor temperature of the refrigerating device is rapidly increased due to the fact that the power supply is powered off is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a block diagram of a temperature control system of a refrigeration system according to an embodiment of the present invention;
FIG. 2 is a block diagram of an embodiment of the detection control device shown in FIG. 1;
FIG. 3 is a block diagram of another embodiment of a temperature control system for a refrigeration unit according to the present invention;
FIG. 4 is a block diagram of a temperature control system for a refrigeration unit according to another embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a method for controlling the temperature of a refrigeration apparatus according to an embodiment of the present invention;
FIG. 6 is a detailed flowchart of an embodiment of step S20 in FIG. 5;
fig. 7 is a schematic diagram of a detailed flow of another embodiment of step S20 in fig. 5.
The reference numbers illustrate:
| 10 | electric |
20 | |
| 30 | |
40 | Regulating |
| 50 | |
60 | |
| 301 | |
302 | Power failure detection device |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
FIG. 1 is a block diagram of a temperature control system of a refrigerator according to an embodiment of the present invention.
Referring to fig. 1, the temperature control system of the refrigerating apparatus includes: a power supply 20, a storage power supply 10, and a detection control device 30; wherein, the output end of the power supply 20 is connected with the power end of the detection control device 30, and the output end of the storage power supply 10 is also connected with the power end of the detection control device 30; the detection end of the detection control device 30 is connected with the output end of the power supply 20, and the output end of the detection control device 30 is connected with the controlled end of the regulating valve 40 of the refrigerating device.
The detection control device 30 is used for detecting the power supply condition of the power supply 20 of the refrigeration device in real time or at regular time, and controlling the regulating valve 40 of the refrigeration device to be closed when the power supply 20 is powered off. The refrigeration unit may be a refrigerated vehicle or other device for refrigerating a product.
The specific working principle is as follows: the air conditioning unit of the refrigerating device is provided with a cold storage material around, the cold storage material is used for releasing cold energy to adjust the indoor temperature of the refrigerating device, the cold storage material of the refrigerating device is controlled by a regulating valve 40 of the refrigerating device in an exposing or hiding mode, specifically, when the regulating valve 40 of the refrigerating device is closed, the cold storage material of the indoor device is exposed and releases the cold energy, and when the regulating valve 40 is disconnected, the cold storage material of the indoor device is hidden and stops releasing the cold energy. When the power supply 20 of the refrigeration device is normally powered, the regulating valve 40 in the refrigeration device is in an off state, and the cold storage material in the refrigeration device does not release cold energy. In this case, the air conditioning unit in the refrigeration device performs refrigeration according to the electric energy provided by the power source 20 to control the indoor temperature to be kept in a range suitable for storing products, and to ensure that the indoor products are not rotten and deteriorated in the storage process or the transportation process.
During the operation of the refrigerating device, the power supply state of the power supply 20 is detected in real time by the detection control device 30. When the power supply 20 is powered off, the detection control device 30 controls the regulating valve 40 of the refrigerating device to be closed by electric energy provided by the power storage power supply 10, and along with the closing of the regulating valve 40, the cold storage material at the periphery in the air conditioning unit of the refrigerating device can be linked to show, and cold energy is released by the cold storage material to carry out cold energy recharging so as to avoid the decay and deterioration of indoor products caused by the rise of indoor temperature due to the power supply power failure. Optionally, the cold storage material of the refrigeration device is a reversible material such as water, a phase change cold storage material and the like, the reversible material is adopted as the cold storage material, and the cold storage material can be prevented from being frequently replaced by a worker by utilizing the characteristic of recycling of the reversible cold storage material, so that the workload of the worker is saved, and the energy is saved.
According to the technical scheme, the power supply state of the power supply 20 is detected by using the detection control device 30 in the refrigeration device, when the power supply 20 is detected to be powered off, the detection control device 30 controls the adjusting valve 40 of the refrigeration device to be closed under the action of electric energy provided by the power storage power supply 10 to link the display of cold storage materials around the refrigeration device air conditioning unit so as to release cold energy, the indoor temperature is effectively controlled through the cold energy released by the cold storage materials, and indoor products are prevented from being rotted and deteriorated due to rapid rise of the indoor temperature caused by the power supply 20 being powered off.
Fig. 2 is a block diagram of another embodiment of a temperature control system for a refrigeration apparatus according to the present invention.
Referring to fig. 2, in an alternative embodiment, the detection control means 30 includes a power-off detection means 302 and a controller 301;
the output end of the power supply 20 and the output end of the storage power supply 10 are both connected with the power end of the controller 301, and the signal output end of the controller 301 is connected with the controlled end of the regulating valve 40 of the refrigerating device; the input end of the power failure detection device 302 is connected to the output end of the power supply 20, and the output end of the power failure detection device 302 is connected to the detection end of the controller 301.
The power failure detection device 302 may be implemented by a circuit formed by a current transformer, or may be implemented by other circuits capable of implementing power detection. The power failure detection device 302 is used for detecting the power supply state of the power supply 20, and when detecting that the power supply 20 is powered off, generates a power failure signal and transmits the power failure signal to the controller 301.
The controller 301, which may be a programmable logic controller, is configured to output a control signal corresponding to the power-off signal to the regulating valve 40 of the refrigeration device according to the electric energy provided by the storage power source 10 when the power source 20 is powered off, so as to control the regulating valve 40 of the refrigeration device to close, so that the cold storage material of the refrigeration device releases cold energy.
The specific working principle is as follows: during the operation of the refrigeration device, the power supply state of the power supply 20 is detected in real time by the power failure detection device 302, and the controller 301 determines whether the power supply 20 is suddenly powered off according to the electrical signal sent by the power failure detection device 302, for example, when the power supply 20 is in a non-powered off state, the electrical signal sent by the power failure detection device 302 to the controller 301 is at a high level; when the power supply 20 is in the power-off state, the electric signal sent to the controller 301 by the power-off detection device 302 is at a low level; alternatively, when the power supply 20 is in the non-power-off state, the electrical signal sent to the controller 301 by the power-off detection device 302 is at a low level; when the power source 20 is in the power-off state, the electric signal sent to the controller 301 by the power-off detection means 302 is at a high level. When the power source 20 is powered off, the power-off detection means 302 sends a power-off signal indicative of the power-off of the power source 20 to the controller 301. When the controller 301 receives the outage signal that the representation power supply 20 cuts off the power supply, the controller 301 relies on the electric energy control governing valve 40 that electric power storage power supply 10 provided to close, along with the closure of governing valve 40 can link the appearance of cold-storage material all around in the cold storage device air conditioning unit for cold-storage material releases the cold energy and carries out the cold energy and mends again, leads to indoor product rotten in order to avoid refrigerating plant's indoor temperature rising.
According to the technical scheme, the power supply state of the power supply 20 is detected by the power failure detection device 302, when the power supply 20 is powered off, the power failure detection device 302 sends a power failure signal representing the power failure of the power supply 20 to the controller 301, under the condition, the controller 301 controls the regulating valve 40 to be closed according to electric energy provided by the power storage power supply 10 to link the appearance of cold storage materials around the refrigerating device air conditioning unit to release cold energy, the indoor temperature is controlled through the cold energy released by the cold storage materials, and indoor products are prevented from being rotted and deteriorated due to rapid rise of the indoor temperature caused by the power supply 20 being powered off.
Fig. 3 is a block diagram of another embodiment of a temperature control system for a refrigeration apparatus according to the present invention.
Referring to fig. 3, the temperature control system of the refrigerating apparatus further includes a temperature detecting device 50; the temperature detection device 50 is connected to a signal input of the controller 301.
The temperature sensing device 50, which may be composed of a single or a plurality of temperature sensors, senses the indoor temperature of the refrigerator and transmits the sensed indoor temperature to the controller 301.
The controller 301 is further configured to adjust the closed position of the regulating valve 40 according to the received indoor temperature, so as to adjust the cold energy released by the cold storage material.
Specifically, during the operation of the refrigeration apparatus, the temperature detection device 50 may detect the indoor temperature of the refrigeration apparatus in real time, for example, detect the indoor temperature of the refrigerator car, and transmit the detected indoor temperature to the controller 301. When the power supply 20 is suddenly interrupted, the controller 301 obtains the indoor temperature at the time of interruption of the power supply 20 by the temperature detection device 50 provided in the room by the electric power supplied from the storage power supply 10. Due to the different indoor temperatures during power failure, the different cold energies that the indoor products need to be recharged will be different, and the different closed positions of the regulating valves 40 for releasing the energy storage material will be different. The controller 301 determines the closed position of the regulating valve 40, that is, determines the opening range of the regulating valve 40, based on the indoor temperature received at the instant of power-off. Specifically, mapping tables of indoor temperatures and closing positions corresponding to different cold storage materials can be stored in a storage device of the system in advance. When the indoor temperature at the moment of power failure is obtained, the controller 301 obtains attribute information of the indoor cold storage material, which is equivalent to determining the material type of the cold storage material in the refrigeration device, and then determines a mapping table corresponding to the attribute information according to the attribute information of the cold storage material, and further determines a closing position corresponding to the indoor temperature at the moment of power failure of the power supply 20 by looking up the table. Further, the controller 301 controls the regulating valve 40 to close according to the determined closing position, so that the cold storage material of the refrigeration device releases cold energy corresponding to the closing position, and the indoor temperature is regulated by the cold energy released by the cold storage material, so that the indoor temperature can meet the temperature required by the indoor product, and the temperature rise in the refrigeration device caused by the power failure is prevented.
Alternatively, in other embodiments, the temperature detection devices may be installed in the interior and the exterior of the refrigeration device, and the temperature detection devices installed in the interior and the exterior are electrically connected to the controller 301, so as to detect the interior temperature and the exterior temperature in real time through the temperature detection devices in the interior and the exterior. Once the refrigeration apparatus is suddenly powered off during operation, the controller 301 obtains the indoor temperature and the outdoor temperature when the power supply 20 is powered off through the temperature detection device disposed outdoors and the temperature detection device disposed indoors under the effect of the power supplied from the storage power supply 10, and calculates the difference between the indoor temperature and the outdoor temperature when the power supply is powered off.
Due to the different indoor and outdoor temperature differences during power failure, the cold energy required to be replenished by the product in the refrigeration device is different, and the closing position of the regulating valve 40 for releasing the energy storage material is different. It can be understood that if the difference between the indoor temperature and the outdoor temperature is larger, the more energy that the cold storage material needs to release in order to maintain the indoor temperature at the temperature before the power failure is increased, and the larger the opening range of the regulating valve 40 is; if the difference between the indoor and outdoor temperatures is small, the cold energy required to be released by the cold storage material is small, and the opening range of the regulating valve 40 is small. Based on this, the controller 301 may determine the closed position of the regulating valve 40, i.e., determine the opening range of the regulating valve 40, based on the calculated temperature difference. Alternatively, a mapping table of the temperature difference value and the closing position corresponding to different cold storage materials can be stored in a storage device of the system in advance. When the temperature difference is calculated, the controller 301 first obtains the attribute information of the indoor cool storage material, which is equivalent to determining the material type of the cool storage material in the refrigeration device, and then determines the mapping table corresponding to the attribute information according to the attribute information of the cool storage material, and further determines the closing position corresponding to the temperature difference by looking up the table. Alternatively, an initial closed position, i.e., an initial opening range, of the regulating valve 40 during power outage may be set in the system in advance, and then the initial closed position is increased or decreased according to the calculated temperature difference value. For example, the initial opening range of the regulating valve 40 is set to 50%, and if the temperature difference between the outdoor temperature and the indoor temperature is 20 degrees, the opening range of the regulating valve 40 is adjusted from 50% to 60%; if the temperature difference between the outdoor temperature and the indoor temperature is 30 degrees, the opening range of the regulating valve 40 is adjusted from 50% to 70%, and so on.
Further, the controller 301 controls the regulating valve 40 to close according to the determined closing position, so that the cold storage material of the refrigeration device releases cold energy corresponding to the closing position, and the indoor temperature is regulated by the cold energy released by the cold storage material, so that the indoor temperature can meet the temperature required by the indoor product, and the temperature rise in the refrigeration device caused by the power failure is prevented.
Optionally, in an embodiment, the temperature control system of the refrigeration device further includes a display device, and the display device is electrically connected to the controller 301.
The display device can be arranged in the cab, and the power end of the display device is connected with the output end of the power supply 20. During the operation of the refrigeration device, the controller 301 may transmit the indoor temperature to the display device in real time for display. So set up, the driver can know indoor temperature in real time, and if the sudden failure of indoor air conditioning unit can not normally refrigerate, the staff also can in time take corresponding remedial measure to improve the reliability of cold storage plant operation process.
Optionally, in an embodiment, the power end of the display device is further connected to the output end of the storage power supply 10, and after the power supply 20 is powered off, the display device can display the indoor temperature of the refrigeration device in real time under the action of the electric energy provided by the storage power supply 10, so that in the case of power off, a driver can also monitor the indoor temperature state in real time to know the storage and transportation environment of the indoor product.
Fig. 4 is a block diagram illustrating a temperature control system of a refrigeration apparatus according to another embodiment of the present invention.
Referring to fig. 4, the temperature control system of the refrigerating apparatus further includes an alarm device 60, and the alarm device 60 is electrically connected to the controller 301.
The alarm device 60 is used for giving an alarm prompt, and the alarm device 60 may be a buzzer, an LED lamp, or the like. The controller 301 may control the alarm device 60 to issue an alarm prompt when receiving a power-off signal indicating that the power supply 20 is powered off, so that the staff can take remedial measures in time.
Optionally, the controller 301 may also send a prompt message to the background system through a wireless communication module, such as a module 4G, Wifi; or sending prompt information to mobile communication equipment carried by the staff, and the like.
The invention also provides a temperature control method of the refrigerating device.
Referring to fig. 5, the temperature control method of the refrigerating apparatus is applied to a temperature control system of the refrigerating apparatus, and includes:
step S10, judging whether the power supply 20 of the refrigerating device is powered off or not;
the air conditioning unit of the refrigerating device is provided with a cold storage material around, the cold storage material is used for releasing cold energy to adjust the indoor temperature, the cold storage material of the refrigerating device is controlled by a regulating valve 40 of the refrigerating device to be displayed or hidden, specifically, when the regulating valve 40 of the refrigerating device is closed, the cold storage material of the refrigerating device is displayed and releases the cold energy, and when the regulating valve 40 is disconnected, the cold storage material of the refrigerating device is hidden and stops releasing the cold energy. When the power supply 20 of the refrigeration device is normally powered, the regulating valve 40 in the refrigeration device is in an off state, and the cold storage material in the refrigeration device does not release cold energy. In this case, the air conditioning unit in the refrigeration device performs refrigeration according to the electric energy provided by the power source 20 to control the indoor temperature to be kept in a range suitable for storing products, and to ensure that the indoor products are not rotten and deteriorated in the storage process or the transportation process.
During the operation of the refrigerating device, the power supply state of the power supply 20 is detected in real time by the detection control device 30. Alternatively, the power supply state of the power supply 20 may be detected in real time by the power outage detection device 302 in the detection control device 30, and the controller 301 in the detection control device 30 determines whether the power supply 20 is suddenly powered off according to the electrical signal sent by the power outage detection device 302. For example, when the power supply 20 is in the non-power-off state, the electric signal sent to the controller 301 by the power-off detection device 302 is at a high level; when the power supply 20 is in the power-off state, the electric signal sent to the controller 301 by the power-off detection device 302 is at a low level; alternatively, when the power supply 20 is in the non-power-off state, the electrical signal sent to the controller 301 by the power-off detection device 302 is at a low level; when the power source 20 is in the power-off state, the electric signal sent to the controller 301 by the power-off detection means 302 is at a high level.
And step S20, controlling the regulating valve 40 of the refrigerating device to be closed when the power supply 20 is powered off, so that the cold storage material of the refrigerating device releases cold energy.
When the power supply 20 is powered off, the detection control device 30 controls the adjusting valve 40 of the refrigerating device to be closed by electric energy provided by the power storage power supply 10, and along with the closing of the adjusting valve 40, the cold storage material at the periphery in the air conditioning unit of the refrigerating device is linked to display, cold energy is released through the cold storage material to carry out cold energy recharging, so that the indoor products are prevented from being rotted and deteriorated due to the rising of the indoor temperature. Specifically, when the power source 20 is powered off, the power-off detection means 302 in the detection control means 30 sends a power-off signal indicating that the power source 20 is powered off to the controller 301. When the controller 301 receives the outage signal representing the outage of the power supply 20, the controller 301 controls the regulating valve 40 to be closed by means of the electric energy provided by the power storage power supply 10, and along with the closing of the regulating valve 40, the cold storage material around the cold storage air conditioning unit can be linked to display of the cold storage material in the cold storage device air conditioning unit, so that the cold storage material releases cold energy to carry out cold energy compensation, and the situation that indoor products are rotten and deteriorated due to the fact that the indoor temperature is increased due to the outage of the power. Optionally, the cold storage material of the refrigeration device is a reversible material such as water, a phase change cold storage material, and the like, and the reversible material is adopted as the cold storage material, and the cold storage material can be prevented from being frequently replaced by a worker by utilizing the characteristic of recycling of the reversible cold storage material, so that the workload of the worker is reduced, and the energy is saved.
According to the technical scheme, the power supply state of the power supply 20 of the refrigerating device is detected in real time, and when the power supply 20 is detected to be powered off, the regulating valve 40 of the refrigerating device is controlled to be closed in time to link the appearance of cold storage materials around the refrigerating device air conditioning unit, so that the cold storage materials release cold energy to carry out cold energy compensation, and indoor products are prevented from being rotted and deteriorated due to rapid rise of indoor temperature caused by power supply power failure.
Optionally, referring to fig. 6, in an embodiment, step S20 includes:
step S201, when the power supply 20 is powered off, acquiring the indoor temperature of the refrigerating device;
in this embodiment, the temperature detection device 50 may be installed in the room of the refrigeration apparatus to detect the indoor temperature in real time. When the power supply 20 of the refrigeration apparatus is powered off, the controller 301 obtains the indoor temperature at the time of power off of the power supply 20 by the temperature detection device 50 provided in the room by the electric power supplied from the storage power supply 10.
Step S202, determining the closing position of the regulating valve 40 according to the indoor temperature of the refrigeration device;
because the indoor temperature is different when the power is cut off, the cold energy required to be supplemented by the product in the refrigerating device is different, and the closing position of the regulating valve for releasing the energy storage material is different. The controller 301 determines the closed position of the regulating valve 40, that is, determines the opening range of the regulating valve 40, based on the indoor temperature received at the instant of power-off.
Optionally, step S202 includes:
step S2021, acquiring attribute information of a cold storage material of the refrigeration apparatus;
step S2022, determining a mapping table corresponding to the attribute information of the cold storage material of the refrigeration apparatus;
in step S2023, the closed position of the regulating valve 40 corresponding to the current indoor temperature of the refrigerator is determined from the map.
The mapping table of indoor temperature and closing position corresponding to different cold storage materials can be stored in the storage device of the system in advance. When the indoor temperature at the moment of power failure is obtained, the controller 301 obtains attribute information of the indoor cold storage material, which is equivalent to determining the material type of the cold storage material in the refrigeration device, and then determines a mapping table corresponding to the attribute information according to the attribute information of the cold storage material, and further determines a closing position corresponding to the indoor temperature at the moment of power failure of the power supply 20 by looking up the table.
And step S203, controlling the regulating valve 40 to close according to the determined closing position so that the cold storage material of the cold storage device releases cold energy corresponding to the closing position.
Further, the controller 301 controls the regulating valve 40 to close according to the determined closing position, so that the cold storage material of the refrigeration apparatus releases cold energy corresponding to the closing position, and the indoor temperature is regulated by the cold energy released by the cold storage material, so that the indoor temperature can meet the temperature required by the indoor product, and the indoor temperature increase caused by the power failure is prevented.
Alternatively, referring to fig. 7, in an embodiment, step S20 includes:
step S204, when the power supply is powered off, acquiring the indoor temperature and the outdoor temperature of the refrigerating device;
in this embodiment, the temperature detection devices may be installed outside the refrigeration apparatus and inside the refrigeration apparatus, respectively, to detect the indoor temperature and the outdoor temperature in real time. When the power supply 20 of the refrigeration apparatus is powered off, the controller 301 obtains the outdoor temperature and the indoor temperature when the power supply 20 is powered off by the temperature detecting device disposed outdoors and the temperature detecting device disposed indoors under the power supplied by the storage power supply 10.
Step S205, calculating a temperature difference between the outdoor temperature and the indoor temperature;
the controller 301 calculates a difference between indoor and outdoor temperatures at the time of power outage based on the received outdoor temperature and outdoor temperature.
Step S206, determining the closing position of the regulating valve according to the temperature difference;
due to the different outdoor temperature differences during power failure, the different cold energies that the product in the cold storage device needs to be replenished are different, and the different closed positions of the regulating valve 40 for releasing the energy storage material are different. It can be understood that if the difference between the indoor temperature and the outdoor temperature is larger, the more energy that the cold storage material needs to release in order to maintain the indoor temperature at the temperature before the power failure is increased, and the larger the opening range of the regulating valve 40 is; if the difference between the indoor and outdoor temperatures is small, the cold energy required to be released by the cold storage material is small, and the opening range of the regulating valve 40 is small. Based on this, the controller 301 may determine the closed position of the regulating valve 40, i.e., determine the opening range of the regulating valve 40, based on the calculated temperature difference. Alternatively, a mapping table of the temperature difference value and the closing position corresponding to different cold storage materials can be stored in a storage device of the system in advance. When the temperature difference is calculated, the controller firstly determines and acquires the attribute information of the indoor cold storage material, which is equivalent to determining the material type of the cold storage material in the refrigeration device, then determines a mapping table corresponding to the attribute information according to the attribute information of the cold storage material, and further determines the closing position corresponding to the temperature difference through table lookup. Alternatively, an initial closed position, i.e., an initial opening range, of the regulating valve 40 during power outage may be set in the system in advance, and then the initial closed position is increased or decreased according to the calculated temperature difference value. For example, the initial opening range is set to be 50%, and if the temperature difference between the outdoor temperature and the indoor temperature is 20 degrees, the opening range of the regulating valve is adjusted from 50% to 60%; if the temperature difference between the outdoor temperature and the indoor temperature is 30 degrees, the opening range of the regulating valve is regulated from 50 percent to 70 percent, and the like.
And step S207, controlling the regulating valve 40 to close according to the determined closing position, so that the cold storage material of the refrigeration device releases cold energy corresponding to the closing position.
Further, the controller 301 controls the regulating valve 40 to close according to the determined closing position, so that the cold storage material of the refrigeration device releases cold energy corresponding to the closing position, and the indoor temperature is regulated by the cold energy released by the cold storage material, so that the indoor temperature can meet the temperature required by the indoor product, and the temperature rise in the refrigeration device caused by the power failure is prevented.
Optionally, in an embodiment, after step S10, the method further includes:
and step S11, when the power supply 20 is powered off, sending an alarm prompt to a preset alarm device.
The alarm device can be a buzzer, an LED lamp and the like. The controller 301 may control the alarm device 60 to issue an alarm prompt when receiving a power-off signal indicating that the power supply 20 is powered off, so that the staff can take remedial measures in time.
Optionally, the controller 301 may also send a prompt message to the background system through a wireless communication module, such as a module 4G, Wifi; or sending prompt information to mobile communication equipment carried by the staff, and the like.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A temperature control system for a refrigeration unit, comprising: the power supply, the storage power supply and the detection control device;
the output end of the power supply and the output end of the electric power storage supply are respectively connected with the power supply end of the detection control device; the detection end of the detection control device is connected with the output end of the power supply, and the output end of the detection control device is connected with the controlled end of the regulating valve of the refrigerating device;
and the detection control device is used for controlling the regulating valve of the refrigerating device to be closed according to the electric energy provided by the storage power supply when the power supply is detected to be powered off, so that the cold storage material of the refrigerating device releases cold energy.
2. The temperature control system of a refrigerating apparatus as set forth in claim 1, wherein said detection control means includes a power-off detection means and a controller;
the output end of the power supply and the output end of the electric power storage supply are respectively connected with the power end of the controller, and the signal output end of the controller is connected with the controlled end of the regulating valve of the refrigerating device; the input end of the power failure detection device is connected with the output end of the power supply, and the output end of the power failure detection device is connected with the detection end of the controller;
the power failure detection device is used for generating a power failure signal and transmitting the power failure signal to the controller when detecting that the power supply is powered off;
and the controller is used for outputting a control signal corresponding to the power-off signal to the regulating valve of the refrigerating device according to the electric energy provided by the electric power storage power supply so as to control the regulating valve of the refrigerating device to be closed and enable the cold storage material of the refrigerating device to release cold energy.
3. A temperature control system for a refrigeration unit as set forth in claim 2 further including temperature sensing means; the temperature detection device is connected with a signal input end of the controller;
the temperature detection device is used for detecting the indoor temperature of the refrigerating device and transmitting the detected indoor temperature to the controller;
the controller is also used for adjusting the closing position of the adjusting valve according to the indoor temperature so as to adjust the cold energy released by the cold storage material.
4. The temperature control system of a refrigerating apparatus as set forth in claim 3, wherein said temperature detecting means is further for detecting an outdoor temperature of said refrigerating apparatus and transmitting the detected outdoor temperature to said controller;
the controller is also used for adjusting the closing position of the adjusting valve according to the indoor temperature and the outdoor temperature so as to adjust the cold energy released by the cold storage material.
5. A temperature control system for a cold storage unit as claimed in any one of claims 2 to 4, further comprising an alarm device, said alarm device being electrically connected to said controller.
6. A temperature control method of a refrigerating device is applied to a temperature control system of the refrigerating device, and is characterized by comprising the following steps:
judging whether a power supply of the refrigerating device is powered off or not;
and when the power supply is powered off, controlling a regulating valve of the refrigerating device to be closed so as to enable a cold storage material of the refrigerating device to release cold energy.
7. A temperature control method for a refrigerating device as set forth in claim 6, wherein the step of controlling the regulating valve of the refrigerating device to be closed to allow the cold storage material of the refrigerating device to release cold energy when the power supply is cut off comprises:
when the power supply is powered off, acquiring the indoor temperature of the refrigerating device;
determining the closed position of the regulating valve according to the indoor temperature of the refrigerating device;
and controlling the regulating valve to be closed according to the determined closed position so that the cold storage material of the cold storage device releases cold energy corresponding to the closed position.
8. A temperature control method for a refrigeration unit as set forth in claim 7 wherein said step of determining the closed position of said adjustment valve based on the room temperature of said refrigeration unit comprises:
acquiring attribute information of a cold storage material of the refrigeration device;
determining a mapping table corresponding to attribute information of a cold storage material of the refrigeration device;
determining a closed position of a regulating valve corresponding to an indoor temperature of the refrigerator from the map.
9. A temperature control method for a refrigerating device as set forth in claim 6, wherein the step of controlling the regulating valve of the refrigerating device to be closed to allow the cold storage material of the refrigerating device to release cold energy when the power supply is cut off comprises:
when the power supply is powered off, acquiring the indoor temperature and the outdoor temperature of the refrigerating device;
calculating a temperature difference between the outdoor temperature and the indoor temperature;
determining a closed position of the regulating valve according to the temperature difference;
and controlling the regulating valve to be closed according to the determined closed position so that the cold storage material of the cold storage device releases cold energy corresponding to the closed position.
10. A method for controlling the temperature of a refrigerating apparatus as set forth in any one of claims 6 to 9, wherein said step of determining whether or not the power source of said refrigerating apparatus is cut off further comprises:
and when the power supply is powered off, giving an alarm prompt to a preset alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545445.3A CN111679701B (en) | 2020-06-15 | 2020-06-15 | Temperature control system for refrigeration device and temperature control method for refrigeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010545445.3A CN111679701B (en) | 2020-06-15 | 2020-06-15 | Temperature control system for refrigeration device and temperature control method for refrigeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111679701A true CN111679701A (en) | 2020-09-18 |
| CN111679701B CN111679701B (en) | 2021-11-09 |
Family
ID=72436344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010545445.3A Active CN111679701B (en) | 2020-06-15 | 2020-06-15 | Temperature control system for refrigeration device and temperature control method for refrigeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111679701B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773201A (en) * | 2004-11-12 | 2006-05-17 | 广东科龙电器股份有限公司 | Power-cut operating control method for cold storage refrigerator and refrigerator using the same method |
| CN101858635A (en) * | 2009-04-13 | 2010-10-13 | 松下电器产业株式会社 | Air conditioner control method |
| CN205332432U (en) * | 2016-01-27 | 2016-06-22 | 济南科益试验设备有限公司 | Temperature control device of cold storage cold volume distribution |
| CN205374348U (en) * | 2015-11-09 | 2016-07-06 | 广州齐天冷链科技有限公司 | Appearance and cold -storage box are judged to cold -storage state |
| CN205825550U (en) * | 2016-06-21 | 2016-12-21 | 河南新飞电器有限公司 | Double refrigeration system cold accumulation refrigerator refrigerator-freezers |
| CN106895623A (en) * | 2017-02-28 | 2017-06-27 | 青岛海尔空调器有限总公司 | Air-conditioner and its delivery temperature control method |
| JP2018009787A (en) * | 2017-10-20 | 2018-01-18 | パナソニックＩｐマネジメント株式会社 | refrigerator |
| CN208636233U (en) * | 2017-12-27 | 2019-03-22 | 中国航天空气动力技术研究院 | A kind of constant temperature water cooling model casing |
| CN111017413A (en) * | 2019-12-31 | 2020-04-17 | 深圳好新鲜冷链科技有限公司 | Ice box cold accumulation system |
-
2020
- 2020-06-15 CN CN202010545445.3A patent/CN111679701B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773201A (en) * | 2004-11-12 | 2006-05-17 | 广东科龙电器股份有限公司 | Power-cut operating control method for cold storage refrigerator and refrigerator using the same method |
| CN101858635A (en) * | 2009-04-13 | 2010-10-13 | 松下电器产业株式会社 | Air conditioner control method |
| CN205374348U (en) * | 2015-11-09 | 2016-07-06 | 广州齐天冷链科技有限公司 | Appearance and cold -storage box are judged to cold -storage state |
| CN205332432U (en) * | 2016-01-27 | 2016-06-22 | 济南科益试验设备有限公司 | Temperature control device of cold storage cold volume distribution |
| CN205825550U (en) * | 2016-06-21 | 2016-12-21 | 河南新飞电器有限公司 | Double refrigeration system cold accumulation refrigerator refrigerator-freezers |
| CN106895623A (en) * | 2017-02-28 | 2017-06-27 | 青岛海尔空调器有限总公司 | Air-conditioner and its delivery temperature control method |
| JP2018009787A (en) * | 2017-10-20 | 2018-01-18 | パナソニックＩｐマネジメント株式会社 | refrigerator |
| CN208636233U (en) * | 2017-12-27 | 2019-03-22 | 中国航天空气动力技术研究院 | A kind of constant temperature water cooling model casing |
| CN111017413A (en) * | 2019-12-31 | 2020-04-17 | 深圳好新鲜冷链科技有限公司 | Ice box cold accumulation system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111679701B (en) | 2021-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180356870A1 (en) | Methods and systems for monitoring power supply for a container | |
| EP1226394B1 (en) | A refrigerated container control system | |
| CN111351297B (en) | Intelligent freezer of subregion management | |
| CN109697802B (en) | Notification system and information processing apparatus | |
| US10578353B2 (en) | Autonomous seal monitoring for a refrigeration unit | |
| MX2012011084A (en) | Liquefied air refrigeration system for storage container. | |
| WO2016108953A1 (en) | Methods and systems for monitoring a leak rate of a transport unit | |
| US20220185064A1 (en) | Quality determination device | |
| CN111679701B (en) | Temperature control system for refrigeration device and temperature control method for refrigeration device | |
| US20060179870A1 (en) | Refrigerator power back up system | |
| KR101986325B1 (en) | Apparatus and method for maintaining optimal storage temperature of fresh cargo using reefer container | |
| US11738623B2 (en) | Transport climate control remote management | |
| US10663211B2 (en) | Methods and systems for checking proper airflow within a container | |
| GB2408792A (en) | Refrigeration vehicle | |
| CN113518751B (en) | Container refrigeration monitoring system and method | |
| JP2023022788A (en) | Cold chain system, and cooling-box cold air environment state reporting method of cold chain system | |
| US11686520B2 (en) | System for transport refrigeration control of multiple compartments | |
| CN114080360A (en) | Interior air conditioning device | |
| CN115717807B (en) | Control method of refrigeration house equipment, controller, air conditioner and refrigeration house | |
| US20240035727A1 (en) | Transport refrigeration system | |
| US20220324297A1 (en) | Refrigeration systems weight analysis | |
| US20210248552A1 (en) | Monitoring system for container systems | |
| CN116788139A (en) | Remote control method, device and equipment for vehicle-mounted refrigerator | |
| EP4137761A3 (en) | Transport refrigeration unit and method of operating a transport refrigeration unit | |
| CN115540198A (en) | Refrigerating system control device and method and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220422 Address after: 528437 No. 22, Keji West Road, Torch Development Zone, Zhongshan City, Guangdong Province (residence declaration) Patentee after: Guangdong wanzhenzi Intelligent Control Technology Co.,Ltd. Address before: 528427, Zhongshan, Guangdong province Nantou town head road Patentee before: TCL AIR CONDITIONER (ZHONGSHAN) Co.,Ltd. |