CN-116839176-B - Control device and method for air conditioner refrigerating system and storage medium

CN116839176BCN 116839176 BCN116839176 BCN 116839176BCN-116839176-B

Abstract

The invention provides a control device, a control method and a storage medium for an air conditioner refrigerating system, which belong to the technical field of air conditioning equipment and comprise a control terminal, a centralized control component, a cooling control component, a backwater control component and a water supply control component, wherein the control terminal is connected with the centralized control component, the centralized control component is respectively connected with the cooling control component, the backwater control component and the water supply control component, the backwater control component is respectively connected with the cooling control component and a user terminal, and the water supply control component is respectively connected with the cooling control component and the user terminal. The invention solves the problems that the cold load cannot be prejudged and controlled, and the insufficient cold supply and excessive distribution and delivery are easily caused, improves the production efficiency, and realizes the full-automatic control.

Inventors

Qin Xiuwang
LIU CHANG
WU SHANGSHENG
ZHOU XIAOLIANG
MO YANLIANG
LU YUMEI

Assignees

桂林南药股份有限公司

Dates

Publication Date: 20260512
Application Date: 20230608

Claims (9)

1. A control device for an air conditioner refrigerating system is characterized by comprising a control terminal (1), a centralized control component (2), a cooling control component, a backwater control component and a water supply control component, The control terminal (1) is connected with the centralized control component (2), the centralized control component (2) is respectively connected with the cooling control component, the backwater control component and the water supply control component, the backwater control component is respectively connected with the cooling control component and the user terminal, and the water supply control component is respectively connected with the cooling control component and the user terminal; The control terminal (1) is used for importing a cooling demand parameter and generating a starting instruction, wherein the cooling demand parameter comprises cooling demand temperature data; the centralized control part (2) is further used for obtaining real-time temperature data from the cooling control assembly according to the starting instruction, and when the real-time temperature data is larger than the cooling demand temperature data, a first cooling start instruction, a first backwater start instruction and a first water supply start instruction are generated; The cooling control assembly is used for starting at least one cooling assembly according to the first cooling starting instruction; the backwater control assembly is used for starting any backwater assembly according to the first backwater starting instruction; the water supply control assembly is used for starting any water supply assembly according to the first water supply starting instruction; The cooling control assembly is further used for obtaining real-time cooling data after reaching a preset time, and starting at least one cooling assembly from the rest cooling assemblies according to the real-time cooling data and the cooling demand parameters; the backwater control component is also used for accessing the water to be cooled from the user terminal and starting at least one backwater component from the rest backwater components according to a second backwater starting instruction generated by the at least one cooling component; The water supply control assembly is further used for obtaining real-time water supply data, starting at least one water supply assembly in the water supply control assembly from the rest water supply assemblies according to the real-time water supply data, and inputting the processed cooling water to the user terminal; the cooling control component comprises a cooling water pump control component (3), a cooling tower control component (4), a first cooling temperature sensor (5), a second cooling temperature sensor (6) and a plurality of cooling components, wherein the cooling components comprise a cooling water group (7), a cooling tower (8) and a cooling water pump (9), The centralized control component (2) is respectively connected with the cooling water pump control component (3) and the cooling tower control component (4), the cooling water pump control component (3) is connected with a plurality of cooling towers (8), the cooling tower control component (4) is connected with a plurality of cooling water pumps (9), a plurality of cooling water pumps (9) are respectively connected with a plurality of cooling water groups (7) and a plurality of cooling towers (8), a plurality of cooling water groups (7) are respectively connected with the first cooling temperature sensor (5), the backwater control component and the water supply control component, the first cooling temperature sensor (5) is connected with the second cooling temperature sensor (6), and the second cooling temperature sensor (6) is connected with a plurality of cooling towers (8); The centralized control part (2) is used for obtaining first real-time cooling temperature data from the first cooling temperature sensor (5) according to the starting instruction, and obtaining second real-time cooling temperature data from the second cooling temperature sensor (6); Calculating the difference value between the first real-time cooling temperature data and the second real-time cooling temperature data to obtain real-time temperature data; When the real-time temperature data is larger than the cooling demand temperature data, a first cooling start instruction is generated, wherein the first cooling start instruction comprises a first cooling water group start instruction, a first cooling tower start instruction and a first cooling water pump start instruction; controlling any one of a plurality of cooling water groups (7) to be started according to the first cooling water group starting instruction; The cooling tower control part (4) is used for controlling any one of a plurality of cooling towers (8) to be started according to the first cooling tower starting instruction; the cooling water pump control part (3) is used for controlling any one of the plurality of cooling water pumps (9) to be started according to the first cooling water pump starting instruction.
2. The control device for an air conditioning and refrigeration system according to claim 1, wherein the cooling demand parameters further include cooling pressure data and cooling flow data, the cooling control assembly further includes a first cooling pressure sensor (10), a cooling flow sensor (11), and a second cooling pressure sensor (12), The first cooling pressure sensor (10) is respectively connected with the first cooling temperature sensor (5) and the cooling flow sensor (11), and the second cooling pressure sensor (12) is respectively connected with the cooling flow sensor (11) and the second cooling temperature sensor (6); The first cooling temperature sensor (5) is used for obtaining third real-time cooling temperature data after reaching preset time; the second cooling temperature sensor (6) is used for obtaining fourth real-time cooling temperature data after reaching the preset time; The centralized control part (2) is used for calculating the difference value between the third real-time cooling temperature data and the fourth real-time cooling temperature data to obtain a real-time cooling temperature difference value; the first cooling pressure sensor (10) is used for acquiring first real-time cooling pressure data; The second cooling pressure sensor (12) is used for acquiring second real-time cooling pressure data; The centralized control part (2) is also used for calculating the difference value between the first real-time cooling pressure data and the second real-time cooling pressure data to obtain a real-time cooling pressure difference value; the cooling flow sensor (11) is used for acquiring real-time cooling flow data; The centralized control part (2) is also used for generating a second cooling water group opening instruction when the real-time cooling temperature difference value is larger than the cooling demand temperature data; controlling any one of the rest cooling water groups (7) to be started according to the second cooling water group starting instruction; when the real-time cooling pressure difference value is smaller than the cooling pressure data and/or the real-time cooling flow data is smaller than the cooling flow data, a second cooling tower starting instruction and a second cooling water pump starting instruction are generated; the real-time cooling data comprises the real-time cooling temperature difference value, the real-time cooling pressure difference value and the real-time cooling flow data; The cooling tower control part (4) is used for controlling any one of the rest cooling towers (8) to be started according to the second cooling tower starting instruction; the cooling water pump control part (3) is used for starting any one of the rest cooling water pumps (9) according to the second cooling water pump starting instruction.
3. Control device for an air conditioning and refrigerating system according to claim 1, characterized in that the return water control assembly comprises a return water tank (13), a return water pump control member (14) and a plurality of return water assemblies comprising a return water pump (15), the cooling assembly comprising a cooling water group (7), The water return tank (13) is connected with the user terminal, the water return tank (13) is connected with a plurality of water return pumps (15), the water return pump control component (14) is connected with the centralized control component (2), the cooling control component and the water supply control component, the water return pump control component (14) is respectively connected with a plurality of water return pumps (15), and a plurality of water return pumps (15) are connected with at least one cooling water group (7); The centralized control part (2) is used for performing variable frequency control through a PID algorithm and at least one cooling water group (7) to generate a second backwater opening instruction; The backwater water pump control component (14) is used for controlling at least one backwater water pump (15) to be started according to the second backwater starting instruction.
4. A control device for an air conditioner refrigerating system according to claim 3, wherein the return water assembly further comprises a return water flow sensor (16), a return water pressure sensor (17), a return water temperature sensor (18), the water supply control assembly comprises a water supply tank (19), a water supply pump control part (20), a water supply pressure sensor (21), a water supply temperature sensor (22) and a plurality of water supply pumps (23), The water return flow sensor (16) is respectively connected with the user terminal and the water return pressure sensor (17), the water return temperature sensor (18) is respectively connected with the water return pressure sensor (17) and the water return tank (13), the water supply tank (19) is connected with at least one cooling water group (7), the plurality of water supply pumps (23) are respectively connected with the water supply tank (19), the water supply pump control component (20) and the water supply pressure sensor (21), the water supply pump control component (20) is connected with the centralized control component (2), the cooling control component and the water return control component, and the water supply temperature sensor (22) is respectively connected with the water supply pressure sensor (21) and the user terminal; the backwater flow sensor (16) is used for obtaining real-time backwater flow data; the backwater pressure sensor (17) is used for obtaining real-time backwater pressure data; The backwater temperature sensor (18) is used for acquiring real-time backwater temperature data; the water supply pressure sensor (21) is used for obtaining real-time water supply pressure data; The water supply temperature sensor (22) is used for obtaining real-time water supply temperature data; the centralized control part (2) is used for calculating the difference value between the real-time backwater pressure data and the real-time water supply pressure data to obtain a real-time backwater pressure difference value; Calculating the difference value between the real-time backwater temperature data and the real-time water supply temperature data to obtain a real-time backwater temperature difference value; the real-time water supply data comprises the real-time backwater flow data, the real-time backwater pressure difference value and the real-time backwater temperature difference value; performing variable frequency control on the PID algorithm, the real-time backwater flow data, the real-time backwater pressure difference value and the real-time backwater temperature difference value to generate a second water supply opening instruction; the water supply pump control part (20) is used for controlling the rest at least one water supply pump (23) to be started according to the second water supply starting instruction.
5. A control device for an air conditioning and refrigeration system according to claim 3, characterized in that said centralized control unit (2) is also adapted to: when the real-time cooling temperature data is smaller than the cooling demand temperature data, a cooling water group closing instruction is generated; and controlling any one of the plurality of cooling water groups (7) to be closed according to the cooling water group closing instruction.
6. The control device for an air-conditioning and refrigerating system according to claim 4, further comprising an energy meter (24), wherein the energy meter (24) is connected to the water supply tank (19) and the plurality of cooling water groups (7), respectively.
7. Control device for an air-conditioning and refrigerating system according to claim 1, characterized in that it further comprises an electric meter (25), said electric meter (25) being connected to said central control unit (2).
8. A control method for an air conditioning refrigeration system including the control device for an air conditioning refrigeration system according to any one of claims 1 to 7, characterized by comprising: Importing a cooling demand parameter and generating a starting instruction, wherein the cooling demand parameter comprises cooling demand temperature data; Acquiring real-time temperature data from a cooling control assembly according to the starting instruction, and generating a first cooling start instruction, a first backwater start instruction and a first water supply start instruction when the real-time temperature data is larger than the cooling demand temperature data; At least one cooling assembly is started according to the first cooling starting instruction, any one backwater assembly is started according to the first backwater starting instruction, and any one water supply assembly is started according to the first water supply starting instruction; When the preset time is reached, obtaining real-time cooling data, and starting at least one cooling assembly from the rest cooling assemblies according to the real-time cooling data and the cooling demand parameters; The method comprises the steps of accessing water to be cooled from a user terminal, and starting at least one backwater component from the rest backwater components according to a second backwater starting instruction generated by the at least one cooling component; and obtaining real-time water supply data, starting at least one water supply assembly in the water supply control assemblies from the rest water supply assemblies according to the real-time water supply data, and inputting the processed cooling water to the user terminal.
9. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the control method for an air conditioning and refrigeration system according to claim 8.

Description

Control device and method for air conditioner refrigerating system and storage medium Technical Field The invention mainly relates to the technical field of air conditioning equipment, in particular to a control device, a control method and a storage medium for an air conditioning refrigeration system. Background At present, chilled water used in an air conditioner refrigerating system is provided by a cooling water group, the cooling water group is only manually controlled to start and stop, the cooling load cannot be predicted and controlled, the phenomena of insufficient cooling, excessive distribution and transportation and the like are easily caused, and the production assurance and the energy consumption management are not enough. The existing control method only displays the control main body on a computer simply, the PLC configuration and the operation logic are simple, the operation logic is simple, the accuracy and the algorithm cannot be controlled, the control precision is insufficient, and the high-efficiency energy conservation is difficult to achieve. The existing control method is simple in control, only monitors and simply starts and stops the equipment, needs to start and stop the equipment manually, cannot meet the defects of energy consumption waste and the like of unit operation caused by full-automatic operation, and cannot analyze the energy consumption condition. Most of the existing control methods only monitor the running states of equipment such as a refrigerating unit, a water pump, a cooling tower fan and the like, are simple to control, can only meet the requirements of some foundations, cannot meet the functions of automatic switching, automatic start-stop, automatic adjustment according to loads and the like, are low in energy saving efficiency, and cannot meet the requirements of enterprise development. Disclosure of Invention The invention aims to solve the technical problem of providing a control device, a control method and a storage medium for an air conditioner refrigerating system aiming at the defects of the prior art. The technical proposal of the invention for solving the technical problems is that the control device for the air conditioner refrigerating system comprises a control terminal, a centralized control part, a cooling control component, a backwater control component and a water supply control component, The control terminal is connected with the centralized control component, the centralized control component is respectively connected with the cooling control component, the backwater control component and the water supply control component, the backwater control component is respectively connected with the cooling control component and the user terminal, and the water supply control component is respectively connected with the cooling control component and the user terminal; The control terminal is used for importing a cooling demand parameter and generating a starting instruction, wherein the cooling demand parameter comprises cooling demand temperature data; The centralized control component is further used for obtaining real-time temperature data from the cooling control component according to the starting instruction, and generating a first cooling start instruction, a first backwater start instruction and a first water supply start instruction when the real-time temperature data is larger than the cooling demand temperature data; The cooling control assembly is used for starting at least one cooling assembly according to the first cooling starting instruction; the backwater control assembly is used for starting any backwater assembly according to the first backwater starting instruction; the water supply control assembly is used for starting any water supply assembly according to the first water supply starting instruction; The cooling control assembly is further used for obtaining real-time cooling data after reaching a preset time, and starting at least one cooling assembly from the rest cooling assemblies according to the real-time cooling data and the cooling demand parameters; the backwater control component is also used for accessing the water to be cooled from the user terminal, and starting at least one backwater component from the rest backwater components according to the at least one cooling component; The water supply control assembly is further used for obtaining real-time water supply data, starting at least one water supply assembly in the water supply control assembly from the rest water supply assemblies according to the real-time water supply data, and inputting the processed cooling water to the user terminal. The other technical scheme for solving the technical problems is as follows, and the control method for the air conditioner refrigerating system comprises the following steps: Importing a cooling demand parameter and generating a starting instruction, wherein the cooling demand parameter comprises cooling demand temperature da