CN-121979328-A - Temperature control method, device, equipment, medium and product of three-dimensional refrigeration house

CN121979328ACN 121979328 ACN121979328 ACN 121979328ACN-121979328-A

Abstract

The application provides a temperature control method, a device, equipment, a medium and a product of a three-dimensional refrigeration house, belonging to the technical field of refrigeration house storage, and the method comprises the steps of constructing a digital refrigeration house twin model based on a three-dimensional geometric structure of the three-dimensional refrigeration house, and performing transient simulation on the temperature based on computational fluid mechanics by the digital refrigeration house twin model; the method comprises the steps of receiving a real-time warehouse entry plan, utilizing a digital twin model of the refrigerator, and carrying out temperature adjustment on the stereoscopic refrigerator based on the real-time warehouse entry plan and the real-time temperature state of the stereoscopic refrigerator, wherein the digital twin model of the refrigerator takes the real-time temperature state as an initial condition, and takes goods in the real-time warehouse entry plan as a transient heat source to carry out transient simulation. According to the application, the influence of the goods on the temperature of the stereoscopic refrigeration house in the warehouse entry plan is considered, and the accuracy of temperature control is improved.

Inventors

WEI FANHAO
LU FENGLU
SHI QINGMU
LI LINGBO
ZHAO XIN
ZHANG SHAOJIE

Assignees

中国中元国际工程有限公司

Dates

Publication Date: 20260505
Application Date: 20251218

Claims (10)

1. The temperature control method of the three-dimensional refrigeration house is characterized by comprising the following steps: building a digital twin model of the refrigerator based on a three-dimensional geometric structure of the three-dimensional refrigerator, wherein the digital twin model of the refrigerator carries out transient simulation on temperature based on computational fluid dynamics; Receiving a real-time warehouse entry plan; and carrying out temperature adjustment on the three-dimensional refrigeration house based on the real-time warehousing plan and the real-time temperature state of the three-dimensional refrigeration house by using the digital twin model of the refrigeration house, wherein the digital twin model of the refrigeration house takes the real-time temperature state as an initial condition, and takes goods in the real-time warehousing plan as a transient heat source to carry out transient simulation.
2. The method for controlling temperature of a three-dimensional refrigeration house according to claim 1, wherein said utilizing said digital twin model of the refrigeration house, when the temperature of the three-dimensional refrigeration house is adjusted based on the real-time warehousing plan and the real-time temperature state of the three-dimensional refrigeration house, each control period comprises the following steps: Inputting the real-time warehouse entry plan and the real-time temperature state into the digital twin model of the refrigeration house to obtain a refrigeration load prediction curve output by the digital twin model of the refrigeration house; Determining a control sequence of a refrigeration system based on the refrigeration load prediction curve, the control sequence comprising a plurality of refrigeration control strategies arranged in time; And issuing a first refrigeration control strategy of the control sequence to the refrigeration system for execution, and updating the real-time temperature state based on the regulated temperature.
3. The method of controlling temperature of a three-dimensional refrigerator according to claim 2, further comprising, after the updating of the real-time temperature state based on the adjusted temperature, at each control cycle: determining an error between the adjusted temperature and a predicted temperature at the same time node determined by the refrigeration load prediction curve; And correcting model parameters of the digital twin model of the refrigeration house based on the errors.
4. The method of temperature control of a three-dimensional freezer according to claim 2, wherein the cargo area is configured as a porous medium domain or a solid domain in the freezer digital twin mold.
5. The method of claim 4, wherein the real-time warehousing schedule includes at least one of a type of cargo, a quantity of cargo, a warehousing time, and a storage location.
6. The method according to claim 5, wherein the real-time warehouse entry plan and the real-time temperature state are input into the digital twin model of the refrigerator, and a refrigeration load prediction curve output by the digital twin model of the refrigerator is obtained, and the method specifically comprises: The digital twin model of the refrigeration house assigns the thermophysical attribute of the goods type to the area corresponding to the storage position of the goods type in the porous medium area or the solid area, wherein the assignment starting time is the warehousing time of the goods type; The freezer digital twin model determines the transient heat source based on the thermophysical properties of the porous media domain or solid domain; The digital twin model of the refrigerator carries out transient simulation based on the real-time temperature state and the transient heat source to obtain a prediction result of temperature field change in the refrigerator; And determining a corresponding refrigeration load prediction result by the digital twin model of the refrigeration house based on the temperature field change prediction result in the refrigeration house, and obtaining the refrigeration load prediction curve.
7. The utility model provides a temperature control device of three-dimensional freezer which characterized in that includes: The model construction module is used for constructing a digital twin model of the refrigerator based on the three-dimensional geometric structure of the three-dimensional refrigerator, and the digital twin model of the refrigerator carries out transient simulation on the temperature based on computational fluid dynamics; The receiving module is used for receiving the real-time warehouse-in plan; The adjusting module is used for adjusting the temperature of the three-dimensional refrigeration house based on the real-time warehousing plan and the real-time temperature state of the three-dimensional refrigeration house by utilizing the digital twin model of the refrigeration house, wherein the digital twin model of the refrigeration house takes the real-time temperature state as an initial condition, and takes goods in the real-time warehousing plan as a transient heat source to carry out transient simulation.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of controlling the temperature of a three-dimensional freezer according to any one of claims 1 to 6 when executing the computer program.
9. A non-transitory computer readable storage medium having a computer program stored thereon, wherein the computer program when executed by a processor implements the method of controlling the temperature of a three-dimensional refrigeration house according to any one of claims 1 to 6.
10. A computer program product comprising a computer program which, when executed by a processor, implements the method for controlling the temperature of a three-dimensional freezer according to any one of claims 1to 6.

Description

Temperature control method, device, equipment, medium and product of three-dimensional refrigeration house Technical Field The application relates to the technical field of refrigeration storage, in particular to a temperature control method, a device, equipment, a medium and a product of a three-dimensional refrigeration storage. Background At present, a feedback control mode based on a set temperature is generally adopted for temperature control of an automatic three-dimensional refrigeration house, namely, when a temperature sensor in the refrigeration house detects that the temperature is higher than the set value, the refrigeration load is calculated based on the difference value between the current temperature and the set temperature, and then the refrigeration capacity is started or increased. Wherein the calculation of the cooling load is typically based on a steady state heat transfer model. However, the conventional steady-state heat transfer model ignores the influence of the change of the goods on the warehouse temperature, so that the change rule of the warehouse temperature along with time cannot be accurately predicted, and particularly when different types of goods are stored in a mixed mode, the warehouse temperature error is larger. Disclosure of Invention The application provides a temperature control method, a device, equipment, a medium and a product of a three-dimensional refrigeration house, and aims to solve the problem that the temperature deviation obtained by the traditional steady-state heat transfer model-based cold load calculation mode is large. In a first aspect, the present application provides a method for controlling temperature of a three-dimensional refrigerator, including: constructing a digital twin model of the refrigerator based on a three-dimensional geometric structure of the three-dimensional refrigerator, and performing transient simulation on temperature based on computational fluid dynamics; Receiving a real-time warehouse entry plan; and carrying out temperature regulation on the stereoscopic refrigeration house based on the real-time warehousing plan and the real-time temperature state of the stereoscopic refrigeration house by using the digital twin model of the refrigeration house, wherein the digital twin model of the refrigeration house takes the real-time temperature state as an initial condition, and takes goods in the real-time warehousing plan as a transient heat source to carry out transient simulation. In one embodiment, when the temperature of the three-dimensional refrigeration house is adjusted based on a real-time warehousing plan and a real-time temperature state of the three-dimensional refrigeration house by using a digital twin model of the refrigeration house, each control period comprises the following steps: Inputting a real-time warehousing plan and a real-time temperature state into a digital twin model of the refrigeration house to obtain a refrigeration load prediction curve output by the digital twin model of the refrigeration house; Determining a control sequence of the refrigeration system based on the refrigeration load prediction curve, the control sequence comprising a plurality of refrigeration control strategies arranged in time; And issuing a first refrigeration control strategy of the control sequence to the refrigeration system for execution, and updating the real-time temperature state based on the adjusted temperature. In one embodiment, after updating the real-time temperature state based on the adjusted temperature, each control cycle further comprises: determining an error between the adjusted temperature and a predicted temperature at the same time node determined by the refrigeration load prediction curve; And correcting model parameters of the digital twin model of the refrigeration house based on the errors. In one embodiment, the cargo area is configured as a porous media domain or a solid domain in a digital twin-mold of a freezer. In one embodiment, the real-time warehousing plan includes a cargo type, a cargo quantity, a warehousing time, and a storage location of at least one cargo. In one embodiment, the method inputs a real-time warehouse entry plan and a real-time temperature state into a digital twin model of the refrigerator to obtain a refrigeration load prediction curve output by the digital twin model of the refrigerator, and specifically comprises the following steps: The digital twin model of the refrigeration house assigns the thermophysical property of the goods type to the area corresponding to the storage goods position of the goods type in the porous medium area or the solid area, and the assigned starting time is the warehousing time of the goods type; the digital twin model of the refrigeration house determines a transient heat source based on the thermophysical properties of the porous medium domain or the solid domain; The digital twin model of the refrigerator carries out transient simulati