Control method of frozen transportation system, frozen transportation system and storage medium

Abstract

The invention provides a control method of a frozen transportation system, the frozen transportation system and a computer readable storage medium, the frozen transportation system comprises a box body and a refrigeration unit, the refrigeration unit comprises a first evaporator and a second evaporator which are connected in parallel, the second evaporator is provided with a phase change energy storage material, and the control method comprises the following steps: quenching, and the first evaporator and the second evaporator exchange heat with air in the box body at the same time, and cold energy stored by the phase change energy storage material is released. According to the control method of the freezing transportation system, the freezing transportation system and the computer readable storage medium, after the freezing transportation system operates for a short period of time, the freezing transportation system can provide a low-temperature environment meeting the cargo requirement.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerated transportation systems, and specifically to a control method for a refrigerated transportation system, a refrigerated transportation system, and a computer-readable storage medium. Background Art

[0002] The refrigerated transportation system is used to transport goods that need to be stored at low temperatures, and it can provide a low-temperature environment of about -20°C for the goods. However, in the prior art, it is not easy for the refrigerated transportation system to provide the above low-temperature environment. For example, it may be necessary to run the refrigerated transportation system for a long period of time before the refrigerated transportation system can provide the above low-temperature environment, or it may cost a high system operation cost (including energy costs and equipment costs, etc.) before the refrigerated transportation system can provide the above low-temperature environment. Summary of the invention

[0003] The present application aims to provide a control method for a refrigerated transportation system, a refrigerated transportation system, and a computer-readable storage medium, so as to at least solve or alleviate some of the problems existing in the prior art.

[0004] The first aspect of the present application provides a control method for a refrigerated transportation system, the refrigerated transportation system includes a box body and a refrigeration unit arranged corresponding to the box body, the refrigeration unit includes a first evaporator and a second evaporator connected in parallel, the second evaporator has a phase change energy storage material, and the control method includes: a rapid cooling step, the first evaporator and the second evaporator simultaneously exchange heat with the air in the box body to release the cold energy stored in the phase change energy storage material.

[0005] In the control method of the refrigerated transportation system of the optional technical solution, the second evaporator includes a second evaporator coil, and the phase change energy storage material is coupled to the second evaporator coil. The control method also includes: an energy storage step, the second evaporator coil exchanges heat with the phase change energy storage material so that the phase change energy storage material stores cold energy.

[0006] In the control method of the refrigerated transportation system of the optional technical solution, the refrigerated transportation system also includes a plug-in element that can be coupled to an external power supply, and the control method also includes: a pre-energy storage step, when the plug-in element is coupled to the external power supply, the second evaporator coil exchanges heat with the phase change energy storage material to enable the phase change energy storage material to store cold energy.

[0007] In the control method of the refrigerated transportation system of the optional technical solution, the refrigerated transportation system also includes an onboard power source, and in the rapid cooling step and the energy storage step, the onboard power source is used to provide power to the refrigeration unit.

[0008] In the control method of the refrigerated transport system of the optional technical solution, the onboard power source includes a fuel cell, and in the energy storage step, the operating power of the fuel cell is increased in a direction close to the rated power of the fuel cell.

[0009] In the control method of the refrigerated transportation system of the optional technical solution, the control method also includes: a cold energy demand determination step, obtaining the cold energy demand information of the box, generating a quick cooling instruction when the cold energy demand information meets the preset quick cooling condition, and generating an energy storage instruction when the cold energy demand information meets the preset energy storage condition; in the quick cooling step, it also includes a step of responding to the quick cooling instruction; in the energy storage step, it also includes a step of responding to the energy storage instruction.

[0010] In the control method of the refrigerated transportation system of the optional technical solution, in the cold energy demand determination step, the cold energy demand information includes the difference between the current temperature in the box and the set temperature, and whether the preset rapid cooling conditions are met and whether the preset energy storage conditions are met are determined based on the comparison result between the difference and the threshold.

[0011] In the control method of the refrigerated transportation system of the optional technical solution, the box body includes a first area and a second area, the first evaporator is arranged corresponding to the first area, and the second evaporator is arranged corresponding to the second area.

[0012] In the control method of the refrigerated transportation system of the optional technical solution, in the cold energy demand determination step, the cold energy demand information includes a first difference between the current temperature of the first area of ​​the first area and the set temperature of the first area, and a second difference between the current temperature of the second area of ​​the second area and the set temperature of the second area. Whether the preset energy storage condition is met is determined based on the comparison result of the first difference and the threshold and the comparison result of the second difference and the threshold.

[0013] In the control method of the refrigerated transportation system of the optional technical solution, the preset energy storage condition is that the first difference reaches a threshold value, or / and the second difference reaches a threshold value.

[0014] The second aspect of the present application provides a refrigerated transportation system, comprising: a box body; a refrigeration unit, corresponding to the box body setting, the refrigeration unit comprises a first evaporator and a second evaporator in parallel, the second evaporator comprises a second evaporating coil and a phase change energy storage material coupled to the second evaporating coil; a processor; a memory, the memory storing processor-readable instructions, the processor executes the following steps by running the processor-readable instructions: a cold energy demand determination step, obtaining cold energy demand information of the box body, generating a quick cooling instruction when the cold energy demand information meets a preset quick cooling condition, and generating an energy storage instruction when the cold energy demand information meets a preset energy storage condition; a quick cooling step, in response to the quick cooling instruction, the first evaporator and the second evaporator simultaneously exchange heat with the air in the box body to release the cold energy stored in the phase change energy storage material; an energy storage step, in response to the energy storage instruction, the second evaporating coil exchanges heat with the phase change energy storage material to allow the phase change energy storage material to store cold energy.

[0015] In the refrigerated transportation system of the optional technical solution, the refrigerated transportation system is a refrigerated truck, a refrigerated ship or a refrigerated container.

[0016] The third aspect of the present application provides a refrigerated transportation system, comprising: a box body; a refrigeration unit, arranged corresponding to the box body, the refrigeration unit comprising a first evaporator and a second evaporator in parallel, the second evaporator comprising a second evaporating coil and a phase change energy storage material coupled to the second evaporating coil; a cold energy demand determination unit, configured to obtain cold energy demand information of the box body, generate a quick cooling instruction when the cold energy demand information meets a preset quick cooling condition, and generate an energy storage instruction when the cold energy demand information meets a preset energy storage condition; a quick cooling unit, configured to respond to the quick cooling instruction so that the first evaporator and the second evaporator simultaneously exchange heat with the air in the box body to release the cold energy stored in the phase change energy storage material; an energy storage unit, configured to respond to the energy storage instruction so that the second evaporating coil exchanges heat with the phase change energy storage material so that the phase change energy storage material stores cold energy.

[0017] A fourth aspect of the present application provides a computer-readable storage medium storing processor-readable instructions, which, when executed by a processor, implement the control method of the refrigerated transportation system in any of the above-mentioned optional technical solutions.

[0018] According to the control method of the refrigerated transportation system, the refrigerated transportation system, and the computer-readable storage medium of the present application, after the refrigerated transportation system has been running for a short period of time, the refrigerated transportation system can provide a low-temperature environment that meets the needs of the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a refrigerated transportation system according to an embodiment of the present application;

[0020] Figure 2 is a schematic structural diagram of a refrigeration unit according to an embodiment of the present application;

[0021] Figure 3 is a flow chart of a control method for a refrigerated transportation system according to an embodiment of the present application;

[0022] Figure 4 is a schematic structural diagram of a refrigerated transportation system according to an embodiment of the present application;

[0023] Figure 5 The present invention is a flowchart of a control method for a refrigerated transportation system according to an embodiment of the present application.

[0024] Figure numerals: refrigerated transport system 1, box 10, first area 10A, second area 10B, front wall 11, partition 12, current temperature TA of first area, set temperature T1 of first area, current temperature TB of second area, set temperature T2 of second area, refrigeration unit 20, first evaporator 21, first evaporation coil 211, first fan 212, second evaporator 22, second evaporation coil 221, second fan 222, phase change energy storage material 223, condenser 23, compressor 24, expansion valves 25, 26, plug-in element 30, onboard power source 40, fuel cell 41, battery 42. DETAILED DESCRIPTION

[0025] It should be noted that the control method of the refrigerated transportation system, the refrigerated transportation system, the working principle, characteristics and advantages of the computer-readable storage medium according to the present application will be explained below in an illustrative manner, but it should be understood that all descriptions are given for illustrative purposes only and should not be construed as forming any limitation on the present application.

[0026] In addition, for any single technical feature described or implied in the embodiments mentioned in this document, or any single technical feature displayed or implied in the accompanying drawings, the present application still allows for continued arbitrary combination or deletion between these technical features (or their equivalents) without any technical obstacles, thereby obtaining more other embodiments of the present application that may not be directly mentioned in this document.

[0027] <Overview>

[0028] Generally referring to the figures, according to exemplary embodiments, a control method of a refrigerated transportation system 1, a refrigerated transportation system 1, a computer-readable storage medium, etc. are shown. The control method includes a rapid cooling step of causing the first evaporator 21 and the second evaporator 22 to simultaneously exchange heat with the air in the box 10, so that after the refrigerated transportation system 1 is operated for a short period of time, the refrigerated transportation system 1 can provide a low temperature environment that meets the needs of the goods.

[0029] <Control method of single temperature zone refrigerated transportation system>

[0030] According to the refrigerated transportation system 1 in the embodiment of the present application, reference Figure 1 and Figure 2 , including a box 10 and a refrigeration unit 20, the refrigeration unit 20 includes a first evaporator 21 and a second evaporator 22 connected in parallel, the second evaporator 22 has a phase change energy storage material 223, according to the control method of the refrigerated transportation system 1 in the embodiment of the present application, refer to Figure 3, including: a rapid cooling step, allowing the first evaporator 21 and the second evaporator 22 to simultaneously exchange heat with the air in the box 10, releasing the cold energy stored in the phase change energy storage material 223. By allowing the first evaporator 21 and the second evaporator 22 to simultaneously exchange heat with the air in the box 10, the refrigerated transportation system 1 can provide a low-temperature environment that meets the needs of the goods after running for a short period of time.

[0031] Specifically, in the illustrated embodiment, the refrigerated transport system 1 is a refrigerated vehicle. The refrigeration unit 20 includes a compressor 24, a condenser 23, and a first evaporator 21 and a second evaporator 22 connected in parallel, and an expansion valve 25 is provided between the condenser 23 and the first evaporator 21, and an expansion valve 26 is provided between the condenser 23 and the second evaporator 22. The first evaporator 21 and the second evaporator 22 are both provided near the front wall 11 of the cabinet 10, and are used to supply cold energy into the cabinet 10. The first evaporator 21 includes a first evaporation coil 211 and a first fan 212. By starting the first fan 212, the first evaporation coil 211 exchanges heat with the air in the cabinet 10. The second evaporator 22 includes a second evaporation coil 221, a phase change energy storage material 223 coupled to the second evaporation coil 221, and a second fan 222. By starting the second fan 222, the phase change energy storage material 223 storing cold energy exchanges heat with the air in the cabinet 10.

[0032] Although the refrigerated transport system 1 is shown as a refrigerated truck in the illustrated embodiment, the present application is not limited thereto, and any system that can be used to transport goods that need to be stored at low temperatures is within the scope of the present application. In an alternative embodiment, the refrigerated transport system 1 can be a refrigerated ship or a refrigerated container.

[0033] Although the structure and installation position of the refrigeration unit 20 are shown in the illustrated embodiment, the present application is not limited thereto, and any refrigeration unit 20 that can simultaneously exchange heat between the first evaporator 21 and the second evaporator 22 connected in parallel and the air in the cabinet 10 is within the scope of the present application. In an alternative embodiment, the refrigeration unit 20 can be installed on the top wall of the cabinet 10. In an alternative embodiment, only one fan can be provided in the refrigeration unit 20, and the refrigeration unit 20 controls the heat exchange between the first evaporator 21 and / or the second evaporator 22 and the air in the cabinet 10 through two openable and closable air outlets.

[0034] In some embodiments, the refrigeration unit 20 may perform a first refrigerant cycle and a second refrigerant cycle. In the first refrigerant cycle, the refrigerant discharged from the compressor 24 passes through the condenser 23, the expansion valve 25, and the first evaporator 21, and then returns to the compressor 24. In the second refrigerant cycle, the refrigerant discharged from the compressor 24 passes through the condenser 23, the expansion valve 26, and the second evaporator 22, and then returns to the compressor 24. In the rapid cooling step, the refrigeration unit 20 performs the first refrigerant cycle, even if the refrigerant flows to the first evaporation coil 211 of the first evaporator 21, and at the same time, the first fan 212 is operated at a high speed, thereby increasing the cold energy supplied by the first evaporator 21 to the cabinet 10. In the rapid cooling step, the refrigeration unit 20 does not perform the second refrigerant cycle, that is, the refrigerant does not flow through the expansion valve 26 and the second evaporator 22, but the second fan 222 is operated at a high speed, thereby promoting the phase change energy storage material 223 storing cold energy to exchange heat with the air in the box 10, that is, cold energy is supplied to the box 10 through the phase change energy storage material 223 arranged in the second evaporator 22.

[0035] Although the above embodiment takes the case where the refrigeration unit 20 performs the first refrigeration cycle in the rapid cooling step as an example to illustrate the refrigerant operation mode in the rapid cooling step, the present application is not limited to this. As long as the refrigerant operation mode can increase the total cold energy supplied by the first evaporator 21 and the second evaporator 22 to the box body 10, it is within the scope of the present application.

[0036] For example, in the rapid cooling step, the refrigeration unit 20 may also execute the first refrigerant cycle and the second refrigerant cycle at the same time, cooling the air in the box 10 through the first evaporator coil 211 of the first evaporator 21 and the second evaporator coil 221 of the second evaporator 22, while releasing the cold energy stored in the phase change energy storage material 223, so as to achieve the rapid cooling effect more quickly.

[0037] In some embodiments, reference Figure 3 The control method includes: a cooling energy demand determination step, obtaining the cooling energy demand information of the box 10, generating a cooling instruction when the cooling energy demand information meets the preset cooling condition, and generating an energy storage instruction when the cooling energy demand information meets the preset energy storage condition; a cooling step, responding to the cooling instruction, causing the first evaporator 21 and the second evaporator 22 to simultaneously exchange heat with the air in the box 10 to release the cooling energy stored in the phase change energy storage material 223; an energy storage step, responding to the energy storage instruction, causing the second evaporation coil 221 to exchange heat with the phase change energy storage material 223, so that the phase change energy storage material 223 stores cooling energy.

[0038] Specifically, in the cold energy demand determination step, the cold energy demand information of the cabinet 10 is obtained. The cold energy demand information referred to herein refers to information that can reflect the demand for cold energy in the cabinet 10, and generally may include the current temperature information in the cabinet 10, the set temperature information, the external environment temperature information, etc. When the set temperature is constant, the higher the current temperature in the cabinet 10, the greater the demand for cold energy in the cabinet 10; the higher the external environment temperature, the greater the demand for cold energy in the cabinet 10. When the demand for cold energy in the cabinet 10 is large, the cold energy demand information will reach the preset rapid cooling condition, and when the demand for cold energy in the cabinet 10 is small, the cold energy demand information will reach the preset energy storage condition.

[0039] When the cold energy demand information reaches the preset energy storage condition, an energy storage instruction is generated and the energy storage step is executed. In the energy storage step, the refrigeration unit 20 can execute the first refrigerant cycle and the second refrigerant cycle, that is, the refrigerant partially flows to the first evaporator coil 211 of the first evaporator 21, which is used to adjust or maintain the temperature in the cabinet 10, and partially flows to the second evaporator coil 221 of the second evaporator 22, which is used to exchange heat with the phase change energy storage material 223 to achieve cold energy storage of the phase change energy storage material 223. In the energy storage step, the first evaporator 21 is used to adjust or maintain the temperature in the cabinet 10. Specifically, the amount of cold air supplied by the first evaporator 21 to the cabinet 10 can be changed by adjusting the speed of the first fan 212.

[0040] In some embodiments, the cold energy demand information includes the difference between the current temperature in the cabinet 10 and the set temperature, and determines whether the preset rapid cooling condition is met and whether the preset energy storage condition is met based on the comparison result of the difference and the threshold. For example, when the set temperature is -20°C, if the current temperature in the cabinet 10 is 20°C at this time, the difference between the current temperature in the cabinet 10 and the set temperature is 40, the difference is large and greater than the threshold (assuming the threshold is 10), then the preset rapid cooling condition is met, and a rapid cooling instruction is generated; if the current temperature in the cabinet 10 is -10°C at this time, the difference between the current temperature in the cabinet 10 and the set temperature is 10, the difference is small and less than or equal to the threshold (assuming the threshold is 10), then the preset energy storage condition is met, and an energy storage instruction is generated.

[0041] In the energy storage step, the second evaporation coil 221 exchanges heat with the phase change energy storage material 223, so that the phase change energy storage material 223 stores cold energy, and the first evaporation coil 211 exchanges heat with the air in the cabinet 10, so that the temperature in the cabinet 10 is further reduced from -10°C to -20°C, so that the temperature in the cabinet 10 reaches the set temperature. After the temperature in the cabinet 10 reaches the set temperature, the first fan 212 of the first evaporator 21 can be shut down to prevent the temperature in the cabinet 10 from being too low and having an adverse effect on the goods therein.

[0042] In some embodiments, the refrigerated transport system 1 includes an onboard power source 40, and a plug-in element 30 that can be coupled to an external power source. When the refrigerated transport system 1 is in transit, the onboard power source 40 is used to provide power to the refrigerated transport system 1 including the refrigeration unit 20. When the refrigerated transport system 1 is not in transit, the plug-in element 30 is coupled to an external power source to provide power to the refrigeration unit 20. For example, a pre-energy storage step can be performed to allow the second evaporator coil 221 to exchange heat with the phase change energy storage material 223 so that the phase change energy storage material 223 stores cold energy. Specifically, at night, the plug-in element can be coupled to the power grid, and the valley electricity at night can be used to power the refrigeration unit 20, and the phase change energy storage material 223 can store cold energy. The phase change energy storage material 223 storing cold energy can be used to exchange heat with the air in the box 10 in the rapid cooling step, which helps to reduce the operating cost of the refrigerated transport system 1.

[0043] In some embodiments, in the quenching step and the energy storage step, the refrigeration unit 20 is powered by the onboard power source 40. The onboard power source 40 may include a fuel cell 41 and a battery 42 used in conjunction with the fuel cell 41. In the energy storage step, the working power of the fuel cell 41 is increased in the direction close to the rated power of the fuel cell 41. When the demand for cold energy in the box 10 is small, the energy consumption of the fuel cell 41 is low, and the fuel cell 41 does not work within the rated power range, resulting in low efficiency of the fuel cell 41. Therefore, by performing the energy storage step, the fuel cell 41 provides power for the refrigeration unit 20, so that the phase change energy storage material 223 stores cold energy, thereby increasing the energy consumption of the fuel cell 41, and making the fuel cell 41 work within the rated power range to improve efficiency. When the demand for cold energy in the box 10 is large, the effective heat exchange between the phase change energy storage material 223 storing cold energy and the air in the box 10 relieves the problem of battery overheating caused by the increase in energy consumption of the fuel cell 41, thereby facilitating the compact design of the fuel cell 41.

[0044] In some embodiments, the onboard power source 40 is a diesel engine. In a specific embodiment, part of the power of the diesel engine is used to drive the generator to generate electricity, and the electricity generated by the diesel engine is used to drive electrical equipment such as fans and controllers; the other part of the power of the diesel engine is driven by a belt to drive the compressor, and the compressor mentioned here is an open compressor, which is not driven by electricity, but driven by a pulley and a belt.

[0045] <Control Method of Multi-Temperature Zone Refrigerated Transport System>

[0046] According to the refrigerated transportation system 1 in the embodiment of the present application, Figure 2 and Figure 4As shown, it includes a box body 10 and a refrigeration unit 20, the box body 10 includes a first area 10A and a second area 10B isolated from each other, the refrigeration unit 20 includes a first evaporator 21 and a second evaporator 22 connected in parallel, the second evaporator 22 includes a second evaporation coil 221, and the second evaporation coil 221 is coupled with a phase change energy storage material 223. The first evaporator 21 is arranged corresponding to the first area 10A, and the second evaporator 22 is arranged corresponding to the second area 10B. According to the control method of the refrigerated transportation system 1 in the embodiment of the present application, the method includes: a cold energy demand determination step, obtaining the cold energy demand information of the box 10, generating a quick cooling instruction when the cold energy demand information meets the preset quick cooling condition, and generating an energy storage instruction when the cold energy demand information meets the preset energy storage condition; a quick cooling step, in response to the quick cooling instruction, causing the first evaporator 21 and the second evaporator 22 to simultaneously exchange heat with the air in the box 10 to release the cold energy stored in the phase change energy storage material 223; an energy storage step, in response to the energy storage instruction, causing the second evaporation coil 221 to exchange heat with the phase change energy storage material 223 so that the phase change energy storage material 223 stores cold energy.

[0047] Specifically, the cabinet 10 is divided into a first area 10A and a second area 10B by a partition 12, and the set temperatures of the first area 10A and the second area 10B can be controlled separately. The first area 10A and the second area 10B can be placed inside the cabinet 10 front and back, or placed inside the cabinet 10 up and down. The refrigeration unit 20 includes a compressor 24, a condenser 23, and a first evaporator 21 and a second evaporator 22 connected in parallel, and an expansion valve 25 is provided between the condenser 23 and the first evaporator 21, and an expansion valve 26 is provided between the condenser 23 and the second evaporator 22. The first evaporator 21 is provided near the front wall 11 of the cabinet 10, and is used to supply cold energy to the first area 10A in the cabinet 10; the second evaporator 22 is provided near the partition 12 of the cabinet 10, and is used to supply cold energy to the second area 10B in the cabinet 10. The first evaporator 21 includes a first evaporation coil 211 and a first fan 212. By starting the first fan 212, the first evaporation coil 211 exchanges heat with the air in the first area 10A. The second evaporator 22 includes a second evaporation coil 221, a phase change energy storage material 223 coupled to the second evaporation coil 221, and a second fan 222. By starting the second fan 222, the phase change energy storage material 223 storing cold energy exchanges heat with the air in the second area 10B.

[0048] In some embodiments, reference Figure 5The cooling energy demand information includes a first difference between the current temperature TA of the first area and the set temperature T1 of the first area, and a second difference between the current temperature TB of the second area and the set temperature T2 of the second area. The first difference reflects the cooling energy demand in the first area 10A, and the second difference reflects the cooling energy demand in the second area 10B. By combining the first difference and the second difference, the total cooling energy demand in the box 10 can be understood, and the total cooling energy demand in the box 10 can be divided into two levels, namely, high cooling energy demand and low cooling energy demand.

[0049] When the total demand for cold energy is high, the preset rapid cooling condition is met, a rapid cooling instruction is generated, and the rapid cooling step is executed, that is, the first evaporator 21 exchanges heat with the air in the box 10, and the second evaporator 22 exchanges heat with the air in the box 10 at the same time.

[0050] When the total demand for cold energy is low, and the first difference and the second difference are both greater than 0, that is, the current temperature TA of the first area is greater than the set temperature T1 of the first area and the current temperature TB of the second area is greater than the set temperature T2 of the second area, the preset temperature control condition is met, a temperature control instruction is generated, and the temperature control step is executed, that is, the first evaporator 21 exchanges heat with the air in the box 10, and the second evaporator 22 exchanges heat with the air in the box 10.

[0051] When the total demand for cold energy is low, and at least one of the first difference and the second difference is less than or equal to 0, that is, when the current temperature TA of the first area reaches the set temperature T1 of the first area or the current temperature TB of the second area reaches the set temperature T2 of the second area, the preset energy storage condition is met, an energy storage instruction is generated, and the energy storage step is executed.

[0052] In the energy storage step, when the current temperature TA of the first area reaches the set temperature T1 of the first area and the current temperature TB of the second area does not reach the set temperature T2 of the second area (TA≤T1 and TB>T2), the first evaporator 21 is shut down, the second evaporator 22 stores cold energy and exchanges heat with the air in the box 10, that is, the first fan 212 is shut down, the second evaporator coil 221 exchanges heat with the phase change energy storage material 223 so that the phase change energy storage material 223 stores cold energy, and at the same time, the phase change energy storage material 223 exchanges heat with the air in the box 10 to release the cold energy stored in the phase change energy storage material 223; when the current temperature TA of the first area does not reach the set temperature T1 of the first area and the current temperature TB of the second area reaches the set temperature T2 of the second area (T A>T1 and TB≤T2), the first evaporator 21 exchanges heat with the air in the box body 10, and the second evaporator 22 stores cold energy, that is, the first fan 212 is running, the second fan 222 is stopped, and the second evaporation coil 221 exchanges heat with the phase change energy storage material 223 so that the phase change energy storage material 223 stores cold energy; when the current temperature TA of the first area reaches the set temperature T1 of the first area and the current temperature TB of the second area reaches the set temperature T2 of the second area (TA≤T1 and TB≤T2), the first evaporator 21 is stopped, and the second evaporator 22 stores cold energy, that is, the first fan 212 is stopped, the second fan 222 is stopped, and the second evaporation coil 221 exchanges heat with the phase change energy storage material 223 so that the phase change energy storage material 223 stores cold energy.

[0053] <Refrigerated Transportation System>

[0054] According to the refrigerated transportation system 1 in the embodiment of the present application, it includes: a box 10; a refrigeration unit 20, the refrigeration unit 20 includes a first evaporator 21 and a second evaporator 22 connected in parallel, the second evaporator 22 includes a second evaporation coil 221, and the second evaporation coil 221 is coupled with a phase change energy storage material 223; a processor; a memory, the memory stores processor-readable instructions, and the processor executes the following steps by running the processor-readable instructions: a cold energy demand determination step, obtaining cold energy demand information of the box 10, generating a quick cooling instruction when the cold energy demand information meets a preset quick cooling condition, and generating an energy storage instruction when the cold energy demand information meets a preset energy storage condition; a quick cooling step, in response to the quick cooling instruction, causing the first evaporator 21 and the second evaporator 22 to simultaneously exchange heat with the air in the box 10 to release the cold energy stored in the phase change energy storage material 223; an energy storage step, in response to the energy storage instruction, causing the second evaporation coil 221 to exchange heat with the phase change energy storage material 223, so that the phase change energy storage material 223 stores cold energy.

[0055] According to the refrigerated transportation system 1 in the embodiment of the present application, it includes: a box 10; a refrigeration unit 20, the refrigeration unit 20 includes a first evaporator 21 and a second evaporator 22 connected in parallel, the second evaporator 22 includes a second evaporation coil 221, and the second evaporation coil 221 is coupled with a phase change energy storage material 223; a cold energy demand determination unit, configured to obtain cold energy demand information of the box 10, and generate a quick cooling instruction when the cold energy demand information meets the preset quick cooling condition, and generate an energy storage instruction when the cold energy demand information meets the preset energy storage condition; a quick cooling unit, configured to respond to the quick cooling instruction so that the first evaporator 21 and the second evaporator 22 simultaneously exchange heat with the air in the box 10 to release the cold energy stored in the phase change energy storage material 223; an energy storage unit, configured to respond to the energy storage instruction so that the second evaporation coil 221 exchanges heat with the phase change energy storage material 223 so that the phase change energy storage material 223 stores cold energy.

[0056] <Computer-readable storage medium>

[0057] According to the computer-readable storage medium in the embodiments of the present application, processor-readable instructions are stored, and when the processor-readable instructions are executed by the processor, the control method of the refrigerated transportation system introduced in some of the above embodiments is implemented.

[0058] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A control method for a refrigerated transportation system, characterized in that: The refrigerated transportation system comprises a box and a refrigeration unit arranged corresponding to the box, the refrigeration unit comprises a first evaporator and a second evaporator connected in parallel, the second evaporator has a phase change energy storage material, and the control method comprises: In the rapid cooling step, the first evaporator and the second evaporator simultaneously exchange heat with the air in the box to release the cold energy stored in the phase change energy storage material.

2. The control method of the refrigerated transportation system according to claim 1, characterized in that: The second evaporator includes a second evaporation coil, the phase change energy storage material is coupled to the second evaporation coil, The control method further comprises: In the energy storage step, the second evaporating coil exchanges heat with the phase change energy storage material so that the phase change energy storage material stores cold energy.

3. The control method of the refrigerated transportation system according to claim 2, characterized in that: The refrigerated transport system further includes a plug-in element that can be coupled to an external power source, and the control method further includes: In the pre-energy storage step, when the plug-in element is coupled to an external power source, the second evaporation coil exchanges heat with the phase change energy storage material so that the phase change energy storage material stores cold energy.

4. The control method of the refrigerated transportation system according to claim 2, characterized in that: The refrigerated transport system also includes an onboard power source, In the rapid cooling step and the energy storage step, the refrigeration unit is powered by the onboard power source.

5. The control method of the refrigerated transportation system according to claim 4, characterized in that: The onboard power source includes a fuel cell, In the energy storage step, the operating power of the fuel cell is increased in a direction approaching the rated power of the fuel cell.

6. The control method of the refrigerated transportation system according to claim 2, characterized in that: The control method further comprises: A cooling energy demand determination step, obtaining cooling energy demand information of the box, generating a cooling instruction when the cooling energy demand information meets a preset rapid cooling condition, and generating an energy storage instruction when the cooling energy demand information meets a preset energy storage condition; The quenching step further includes a step of responding to the quenching instruction; The energy storage step also includes a step of responding to the energy storage instruction.

7. The control method of the refrigerated transportation system according to claim 6, characterized in that: In the cold energy demand determination step, the cold energy demand information includes the difference between the current temperature in the box and the set temperature. Based on the comparison result of the difference and the threshold, it is determined whether the preset rapid cooling condition is met and whether the preset energy storage condition is met.

8. The control method of the refrigerated transportation system according to claim 6, characterized in that: The housing includes a first area and a second area. The first evaporator is arranged corresponding to the first area, and the second evaporator is arranged corresponding to the second area.

9. The control method of the refrigerated transportation system according to claim 8, characterized in that: In the cold energy demand determination step, the cold energy demand information includes a first difference between a first area current temperature and a first area set temperature of the first area, and a second difference between a second area current temperature and a second area set temperature of the second area. Whether the preset energy storage condition is met is determined based on a comparison result between the first difference and a threshold value and a comparison result between the second difference and a threshold value.

10. The control method of the refrigerated transportation system according to claim 9, characterized in that: The preset energy storage condition is that the first difference reaches a threshold value, or / and the second difference reaches a threshold value.

11. A refrigerated transportation system, characterized in that: include: Box; A refrigeration unit, arranged corresponding to the box, comprises a first evaporator and a second evaporator connected in parallel, wherein the second evaporator comprises a second evaporation coil and a phase change energy storage material coupled to the second evaporation coil; processor; A memory storing processor-readable instructions, wherein the processor executes the following steps by running the processor-readable instructions: A cooling energy demand determination step, obtaining cooling energy demand information of the box, generating a cooling instruction when the cooling energy demand information meets a preset rapid cooling condition, and generating an energy storage instruction when the cooling energy demand information meets a preset energy storage condition; a rapid cooling step, in response to the rapid cooling instruction, the first evaporator and the second evaporator simultaneously exchange heat with the air in the box to release the cold energy stored in the phase change energy storage material; The energy storage step comprises: in response to the energy storage instruction, the second evaporation coil exchanges heat with the phase change energy storage material so that the phase change energy storage material stores cold energy.

12. A refrigerated transportation system, characterized in that: include: Box; A refrigeration unit, arranged corresponding to the box, comprises a first evaporator and a second evaporator connected in parallel, wherein the second evaporator comprises a second evaporation coil and a phase change energy storage material coupled to the second evaporation coil; A cooling energy demand determination unit is configured to obtain cooling energy demand information of the box, generate a quick cooling instruction when the cooling energy demand information meets a preset quick cooling condition, and generate an energy storage instruction when the cooling energy demand information meets a preset energy storage condition; a quenching unit configured to, in response to the quenching instruction, cause the first evaporator and the second evaporator to simultaneously exchange heat with the air in the box to release cold energy stored in the phase change energy storage material; The energy storage unit is configured to, in response to the energy storage instruction, enable the second evaporation coil to exchange heat with the phase-change energy storage material so that the phase-change energy storage material stores cold energy.

13. The refrigerated transportation system according to claim 12, characterized in that: The refrigerated transportation system is a refrigerated truck, a refrigerated ship or a refrigerated container.

14. A computer-readable storage medium storing processor-readable instructions, characterized in that: When the processor-readable instructions are executed by the processor, the control method of the refrigerated transportation system according to any one of claims 1 to 10 is implemented.

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