Multi-module refrigeration device and rapid cooling control method

Abstract

The application discloses a multi-module refrigeration device and a rapid cooling control method. The rapid cooling control method determines the number of refrigeration modules allowed to be started according to the installation position relationship of the started heat generating equipment and the corresponding refrigeration module; and determines the number of actually started refrigeration modules according to the temperature interval of the supply liquid temperature, the number of refrigeration modules allowed to be started and the rated starting value of the refrigeration module. The application can automatically match the number of refrigeration modules allowed to be started according to the heat generating equipment started at different positions, and control the starting number of matched refrigeration modules according to the temperature interval of the supply liquid temperature, the number of refrigeration modules allowed to be started and the rated starting number of the refrigeration module, so as to achieve the purpose of rapid cooling.

Description

Technical Field

[0001] This invention relates to the field of refrigeration technology, and in particular to a multi-module refrigeration device and a rapid cooling control method. Background Technology

[0002] A refrigeration device designed for special purposes mainly consists of refrigeration modules, a liquid supply unit, and a control unit. It is required to provide a certain flow rate of circulating refrigerant to heat-generating equipment in an environment ranging from -40℃ to +50℃, thereby cooling the equipment. The refrigeration device includes multiple refrigeration modules, each corresponding to a different heat-generating device. The activation of the refrigeration modules corresponds to the operating state of the heat-generating equipment. Due to the special nature of the heat-generating equipment, the installation location of the refrigeration modules is restricted; they can only be installed below the heat-generating equipment. When the heat-generating equipment is operating, it is in an upright position, allowing for smooth heat dissipation and normal operation of the refrigeration modules. When the heat-generating equipment is not operating, it is in a horizontal position, covering the refrigeration modules. In this case, the refrigeration modules below, which are in operation, will trigger a protection alarm due to the inability to dissipate hot air, leading to a malfunction and shutdown of the refrigeration device. Therefore, the activation and deactivation of the refrigeration modules are affected by whether the heat-generating equipment is operating. Furthermore, the heat-generating equipment operates under different environments, generating large amounts of heat and reaching high temperatures, requiring rapid cooling. Therefore, determining the optimal number of refrigeration modules to operate for different liquid supply temperatures to meet the rapid cooling needs of the heat-generating equipment is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] This invention proposes a multi-module cooling device and a rapid cooling control method to solve the technical problems of poor heat dissipation of cooling modules and the selection of how many cooling modules are needed to rapidly cool down the heat-generating equipment in the prior art.

[0004] The rapid cooling control method for the multi-module liquid cooling device proposed in this invention includes:

[0005] The number of cooling modules that can be turned on is determined based on the installation location relationship between the turned-on heating devices and the corresponding cooling modules.

[0006] The actual number of refrigeration modules to be activated is determined based on the temperature range of the liquid supply temperature, the number of refrigeration modules that can be activated, and the rated number of refrigeration modules that can be activated.

[0007] Preferably, before turning on the heating device, the liquid supply pump of the cooling device must be turned on first and the flow rate must be kept stable.

[0008] Preferably, the heating devices are arranged in groups. When at least one heating device in a group is turned on, the total number of cooling modules corresponding to that group of heating devices is determined as the number of cooling modules that can be turned on.

[0009] When the liquid supply temperature is higher than the first set temperature, all allowed cooling modules will be turned on.

[0010] When the liquid supply temperature is within the target temperature range and the number of refrigeration modules that can be turned on is greater than or equal to the first rated value, the refrigeration module with the first rated value is turned on; otherwise, the number of refrigeration modules that can be turned on is turned on.

[0011] When the liquid supply temperature is not within the target temperature range, determine whether the liquid supply temperature is between the second set temperature and the specific temperature. If not, there is no need to turn on the cooling module. If so, determine whether the number of cooling modules that can be turned on is greater than or equal to the second rated value. If so, turn on the cooling module with the second rated value; otherwise, turn on the number of cooling modules that can be turned on.

[0012] In one embodiment, the rapid cooling control method includes the following steps:

[0013] S1. Determine the allowed number N of cooling modules to be turned on based on the correspondence between the activated heating devices and the installation locations of the cooling modules. 允许 ;

[0014] S2. Determine the liquid supply temperature T 供液 Is it greater than the first set temperature, T 供液 >T 1设定 If so, then the number N of the allowed cooling modules to be turned on is determined. 允许 If not, proceed to step S3;

[0015] S3. Determine whether the liquid supply temperature is between the first set temperature and the second set temperature. (T) 1设定 ≥T 供液 >T 2设定 If yes, proceed to step S4; otherwise, proceed to step S5.

[0016] S4. Determine the number N of cooling modules that are allowed to be turned on. 允许 Is it greater than or equal to the first rated value?

[0017] N 允许 ≥N 额定1 If so, then the first rated value N is activated. 额定1 If the cooling module is not enabled, then enable the number of allowed cooling modules N. 允许 ;

[0018] S5. Determine the liquid supply temperature T 供液 Whether between the second set temperature and the specific temperature, T 2设定 ≥T 供液 >T 特定 If so, proceed to step S6; otherwise, there is no need to turn on the cooling module.

[0019] Step S6. Determine the number N of cooling modules that are allowed to be turned on. 允许 Is it greater than or equal to the second rated value N? 额定2 N 允许 ≥N 额定2 If so, then the second rated value N is activated. 额定2 If the cooling module is not enabled, then enable the number of allowed cooling modules N. 允许 .

[0020] The present invention also proposes a multi-module refrigeration device, wherein the multi-module refrigeration device uses the above-mentioned rapid cooling control method.

[0021] In the multi-module refrigeration device, all refrigeration modules are installed below the heating device and share a liquid supply unit, which is connected to the heating device through a pipe.

[0022] In one embodiment, the heating device is a vehicle-mounted device, divided into two groups. The first group consists of four units, placed at the rear of the vehicle, and the second group consists of two units, placed at the front of the vehicle. Each heating device has a cooling module installed below it, and all cooling modules share a liquid supply unit, which is connected to the heating device through a pipe.

[0023] Compared with the prior art, the multi-module liquid cooling device and its rapid cooling control method proposed in this invention can automatically match the number of refrigeration modules that can be turned on according to the heating equipment turned on at different locations, and control the selection of the number of refrigeration modules to be turned on according to the range of liquid supply temperature, the number of refrigeration modules that can be turned on, and the rated number of refrigeration modules to be turned on, so as to achieve the purpose of rapid cooling. Attached Figure Description

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of the layout of the refrigeration modules in a vehicle-mounted multi-module refrigeration system;

[0026] Figure 2 This is a flowchart of the control method for rapid cooling of a multi-module refrigeration device proposed in this invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the invention and do not constitute a limitation thereof.

[0028] The multi-module refrigeration device described in this invention is designed for a specific industry. It consists of multiple heating units, which are horizontal when not in operation and vertical when in operation. Furthermore, the heating units are vehicle-mounted for easy mobility. The multi-module refrigeration device is positioned below the heating units, with multiple refrigeration modules sharing a liquid supply unit and a control unit. The refrigeration modules are positioned corresponding to the heating units, and the control unit communicates with a host computer for human-machine interaction.

[0029] The following parameters were set experimentally before installation of the multi-module refrigeration unit:

[0030] 1. The number N of cooling modules that can be turned on. 允许 ;

[0031] 2. Liquid supply temperature T 供液 ;

[0032] 3. Target temperature range: First set temperature T 1设定 Second set temperature T 2设定 ;

[0033] 4. Rated number of refrigeration modules to be activated: First rated value N 额定1 Second rated value N 额定2 Corresponding to the target temperature range;

[0034] 5. Specific temperature T 特定 : Pre-cured temperature for different heating devices.

[0035] The above parameter N 允许 N 额定1 N 额定2 T 供液 T 1设定 T 2设定 T 特定 All of these can be changed and set through experiments according to different working environments.

[0036] Figure 1 This is a top view showing the layout of the cooling modules in a multi-module vehicle-mounted cooling system. The heating devices are installed on the vehicle, including two sets. The first set has four units installed at the rear of the vehicle, and the second set has two units installed at the front of the vehicle. Figure 1 No heating devices are shown. Below the first group of heating devices are four cooling modules corresponding to their installation positions, labeled 11, 12, 13, and 14. Below the second group of heating devices are two cooling modules corresponding to their installation positions, labeled 15 and 16. All cooling modules share a liquid supply unit 20 and a control unit. The liquid supply unit is connected to each heating device via pipes for cooling.

[0037] This invention is not limited to the structure described above. The heating devices are arranged in groups, and the number of heating devices in each group can vary. The number of cooling modules corresponds to the number of heating devices. When at least one heating device in a group is turned on, the total number of cooling modules corresponding to that group is determined as the number of cooling modules that can be turned on.

[0038] Figure 1 In the illustrated embodiment, when at least one heating device in the first group of heating devices is operational, the four cooling modules below the first group of heating devices are determined as the allowed number of cooling modules to be activated; when at least one heating device in the second group of heating devices is operational, the allowed number of activated cooling modules is two; when at least one heating device in each of the first and second groups of heating devices is operational, the allowed number of activated cooling modules is six. The actual number of activated cooling modules depends on factors such as the liquid supply temperature range, the allowed number of activated cooling modules, the rated number of modules matching the target temperature range, and specific temperatures.

[0039] Figure 2 The diagram shows the logic block diagram of the rapid cooling control method of the present invention. The control method includes two parts: preparation work before the refrigeration device is turned on and control of the refrigeration device being turned on.

[0040] The preparation work before starting the refrigeration unit includes: when the user issues a command to start the refrigeration unit through the host computer, the control unit of the multi-module refrigeration unit receives the command and controls the start of the liquid supply pump of the refrigeration unit. After the liquid supply flow stabilizes, the control unit sends feedback information to the host computer that it is ready. After receiving the command that the refrigeration unit is ready, the host computer starts the heating equipment. After the heating equipment is started, the host computer sends the serial number and quantity of the started heating equipment to the control unit of the refrigeration unit. The control unit finds the serial number and quantity of the refrigeration modules that can be started according to the correspondence between the installation positions of the heating equipment and the refrigeration modules.

[0041] The control method for starting the refrigeration unit includes: the control unit determines whether the current liquid supply temperature (target temperature) is too high; if it exceeds the first set value T... 1设定 This indicates that a large number of heat-generating devices are turned on or the ambient temperature is relatively high. In this case, the control unit will allow the number N of cooling modules to be turned on. 允许 All on; if the liquid supply temperature is at the first set temperature T 1设定 Second set temperature T 2设定 The range indicates that the number of heat-generating devices is not high or the ambient temperature is relatively low. Therefore, it is necessary to further determine the number N of cooling modules that can be activated. 允许 With the first rated value N 额定1 The relationship is such that the number N of cooling modules allowed to be activated... 允许 Greater than or equal to the first rated value N 额定1Then the first rated value N is activated. 额定1 The number of cooling modules; conversely, the number N of cooling modules that can be enabled. 允许 If the liquid supply temperature is not at the first set temperature T 1设定 Second set temperature T 2设定 If the temperature is between these two values, then determine whether the liquid supply temperature is at the second set temperature T. 2设定 and a specific temperature T 特定 If this is the case, it indicates that the number of heating devices turned on is low or the ambient temperature is relatively low. In this case, further determine the number N of cooling modules that can be turned on. 允许 With the second rated value N 额定2 The relationship is such that the number N of cooling modules allowed to be activated... 允许 Greater than or equal to the second rated value N 额定2 Then the second rated value N is activated. 额定2 The cooling module is enabled; conversely, the number N of cooling modules that can be enabled is activated. 允许 If the supply temperature is less than or equal to a specific temperature T 特定 If the ambient temperature is low, then there is no need to turn on the cooling module.

[0042] Figure 1 The flowchart shown is a rapid cooling control method proposed in this invention, which includes the following steps:

[0043] S1. Determine the allowed number N of cooling modules to be turned on based on the correspondence between the activated heating devices and the installation locations of the cooling modules. 允许 ;

[0044] S2. Determine the liquid supply temperature T 供液 Is it greater than the first set temperature T? 1设定 T 供液 >T 1设定 If so, then the number N of the allowed cooling modules to be turned on is determined. 允许 If not, proceed to step S3;

[0045] S3. Determine the liquid supply temperature T 供液 Is it at the first set temperature T? 1设定 Second set temperature T 2设定 Between, T 1设定 ≥T 供液 >T 2设定 If yes, proceed to step S4; otherwise, proceed to step S5.

[0046] S4. Further determine the number N of cooling modules that are allowed to be activated. 允许 Is it greater than or equal to the first rated value N? 额定1 N 允许 ≥N 额定1 If so, then the first rated value N is activated. 额定1If the cooling module is not enabled, then enable the number of allowed cooling modules N. 允许 ;

[0047] S5. Further determine the liquid supply temperature T 供液 Is it at the second set temperature T? 2设定 and a specific temperature T 特定 Between, T 2设定 ≥T 供液 >T 特定 If so, proceed to step S6; otherwise, there is no need to turn on the cooling module.

[0048] Step S6. Further determine the number N of cooling modules that are allowed to be turned on. 允许 Is it greater than or equal to the second rated value N? 额定2 N 允许 ≥N 额定2 If so, then the second rated value N is activated. 额定2 If the cooling module is not enabled, then enable the number of allowed cooling modules N. 允许 .

[0049] The technical solution proposed in this invention first determines the number of refrigeration modules that can be turned on based on the installation positions of the heating devices and the corresponding refrigeration modules. Then, it determines which refrigeration modules will be turned on based on the temperature range of the target liquid supply temperature and the rated number of refrigeration modules to be turned on. In other words, it can not only automatically match the number of refrigeration modules that can be turned on according to the working status of the heating devices, avoiding mismatch between the turn-on of the heating devices and the refrigeration modules, which could lead to false alarms and shutdowns, but also control the selection of the number of refrigeration modules to be turned on based on the liquid supply temperature range, the number of refrigeration modules that can be turned on, and the rated number of refrigeration modules to be turned on, so as to achieve the purpose of rapid cooling.

[0050] The above description is merely a specific embodiment of the present invention. It should be noted that any modifications, equivalent substitutions, and variations made within the spirit and framework of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid cooling control method for a multi-module refrigeration device, characterized in that, The multi-module refrigeration device includes multiple refrigeration modules. The refrigeration modules are arranged below multiple groups of heating devices, and their positions and numbers correspond to the heating devices. Multiple refrigeration modules share a liquid supply unit. When at least one heating device in a group of heating devices is turned on, the total number of all refrigeration modules corresponding to that group of heating devices is determined as the number of refrigeration modules that can be turned on. The rapid cooling control method of the multi-module refrigeration device includes: The number of cooling modules that can be turned on is determined based on the installation location relationship between the activated heating devices and the corresponding cooling modules; The actual number of refrigeration modules to be activated is determined based on the temperature range of the liquid supply temperature, the number of refrigeration modules that can be activated, and the rated number of refrigeration modules that can be activated.

2. The rapid cooling control method as described in claim 1, characterized in that, Before turning on the heating equipment, the liquid supply pump of the cooling unit must be turned on first and the flow rate must be kept stable.

3. The rapid cooling control method as described in claim 1, characterized in that, When the liquid supply temperature is higher than the first set temperature, all allowed cooling modules will be turned on.

4. The rapid cooling control method as described in claim 1, characterized in that, When the liquid supply temperature is within the target temperature range and the number of refrigeration modules that can be turned on is greater than or equal to the first rated value, the refrigeration module with the first rated value is turned on; otherwise, the number of refrigeration modules that can be turned on is turned on.

5. The rapid cooling control method as described in claim 1, characterized in that, When the liquid supply temperature is not within the target temperature range, determine whether the liquid supply temperature is between the second set temperature and the specific temperature. If not, there is no need to turn on the cooling module. If so, determine whether the number of cooling modules that can be turned on is greater than or equal to the second rated value. If so, turn on the cooling module with the second rated value; otherwise, turn on the number of cooling modules that can be turned on.

6. The rapid cooling control method as described in claim 1, characterized in that, Includes the following steps: S1. Determine the allowed number N of cooling modules to be turned on based on the correspondence between the activated heating devices and the installation locations of the cooling modules. 允许 ; S2. Determine the liquid supply temperature T 供液 Is it greater than the first set temperature, T 供液 >T 1设定 If so, then the number N of the allowed cooling modules to be turned on is determined. 允许 If not, proceed to step S3; S3. Determine whether the liquid supply temperature is between the first set temperature and the second set temperature. (T) 1设定 ≥T 供液 >T 2设定 If yes, proceed to step S4; otherwise, proceed to step S5. S4. Determine the number N of cooling modules that are allowed to be turned on. 允许 Is it greater than or equal to the first rated value? N 允许 ≥N 额定1 If so, then the first rated value N is activated. 额定1 If the cooling module is not enabled, then enable the number of allowed cooling modules N. 允许 ; S5. Determine the liquid supply temperature T 供液 Whether between the second set temperature and the specific temperature, T 2设定 ≥T 供液 >T 特定 If so, proceed to step S6; otherwise, there is no need to turn on the cooling module. Step S6. Determine the number N of cooling modules that are allowed to be turned on. 允许 Is it greater than or equal to the second rated value N? 额定2 N 允许 ≥N 额定2 If so, then the second rated value N is activated. 额定2 If the cooling module is not enabled, then enable the number of allowed cooling modules N. 允许 .

7. A multi-module refrigeration device, characterized in that, The multi-module refrigeration device uses the rapid cooling control method described in any one of claims 1 to 6.

8. The multi-module refrigeration device as described in claim 7, characterized in that, All cooling modules are installed below the heating device and share a common liquid supply unit, which is connected to the heating device via pipes.

9. The multi-module refrigeration device as described in claim 8, characterized in that, The heating devices are vehicle-mounted and are divided into two groups. The first group consists of four units, which are placed at the rear of the vehicle, and the second group consists of two units, which are placed at the front of the vehicle. Each heating device has a cooling module installed below it.

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