An SVG cooling system and control method, device, medium

By introducing rotating blades and a power system into the SVG cooling system, combined with central processor control, the forward and reverse rotation of the fan and the adjustment of its operating power are realized, solving the problem of screen blockage and improving the cooling effect.

CN116113216BActive Publication Date: 2026-04-24HUANENG RENEWABLES CORP LTD HEBEI BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUANENG RENEWABLES CORP LTD HEBEI BRANCH
Filing Date
2023-02-15
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In existing SVG cooling systems, the mesh plate below the water-cooled fan is easily clogged by willow catkins and other debris, resulting in poor cooling performance.

Method used

Several heat exchange systems are used, including a shell, heat exchangers, fan system, data acquisition module and central processor. The forward and reverse rotation and working power of the fan are controlled by rotating blades and power system. Combined with the prediction of environmental conditions, backflushing is used to remove blockages.

Benefits of technology

It effectively removes clogging from the cooling mesh, improves cooling efficiency, and ensures the normal operation of the cooling system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of water cooling system, in particular to a kind of SVG cooling system and control method, equipment, medium, mainly including several heat exchange systems, heat exchange system includes shell, acquisition module, central processing unit, shell is provided with heat exchanger and fan system, fan system is set on the upper portion of heat exchanger.Central processing unit according to the overall coordination of the operation of each cooling fan according to the cooling effect Blowback, and then ensure cooling effect and blowback effect.Detect the water temperature drop degree after each fan to judge its corresponding screen board blockage.Combined with the current environmental situation to predict the cooling effect after less or more fan;Several fan high-power work will cooling liquid temperature to a lower value again with a small amount of fan cooling, the rest of the fan is reversed, and then blow the screen board willow catkins and so on off.In this way, it can solve the problem that screen board is blocked by willow catkins and so on to a certain extent, so that the cooling effect is poor.
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Description

Technical Field

[0001] This invention relates to the field of water cooling system technology, and more specifically, to an SVG cooling system and its control method, equipment, and medium. Background Technology

[0002] The SVG (Static Var Generator) is equipped with a water-cooling system. The water-cooled fan is a crucial component. The water-cooled fan consists of a fan, water pipes, and a heat exchanger. The heat generated during SVG operation is carried away by cooling water. The cooling water is transported to the heat exchanger through the water pipes. Numerous heat exchange fins in the heat exchanger are connected to the water pipes, allowing the heat from the cooling water in the pipes to be transferred to the fins. The fan draws in ambient air and creates an airflow that blows towards the heat exchange fins, further carrying away heat and cooling the water, ensuring the effective operation of the cooling system. Throughout the year, different types of dust and debris, such as willow catkins and dandelions, enter the cooling mesh, affecting the cooling effect. The existing water-cooled fan's mesh is easily clogged by these particles, resulting in poor cooling performance. Summary of the Invention

[0003] The purpose of this invention is to provide an SVG cooling system and control method, equipment, and medium to solve the problem in the prior art where the mesh plate under the water-cooled fan is blocked by willow catkins and other debris, resulting in poor cooling effect.

[0004] The embodiments of the present invention are achieved through the following technical solutions:

[0005] In a first aspect, the present invention provides an SVG cooling system, comprising a plurality of heat exchange systems, wherein the heat exchange systems include;

[0006] The housing contains a heat exchanger and a fan system. The fan system is located above the heat exchanger and is used to provide the intake of cooling air. The heat exchanger is used for the heat exchange of the heat dissipation medium.

[0007] The acquisition module is used to acquire the temperature of the heat dissipation medium of the heat exchanger;

[0008] The central processing unit is electrically connected to the heat exchange system, the data acquisition module, and the fan system. The central processing unit is used to control the forward and reverse rotation of the fan system and the operating power of the heat exchange system.

[0009] In one embodiment of the present invention, a rotating ring and rotating blades are further provided between the heat exchanger and the fan system. The rotating ring is slidably connected to the outer shell. A plurality of rotating blades are laid around the center of the rotating ring. The rotating blades are rotatably connected to the rotating ring. The area of ​​the rotating blades is smaller than the area of ​​the inner ring circle of the rotating ring.

[0010] The rotating blade is also connected to a power system for driving the rotating blade to rotate.

[0011] In one embodiment of the present invention, the power system includes a transmission ring and a power source for driving the transmission ring to rotate. The transmission ring is rotatably connected inside the housing. A first gear is provided on the upper part of the rotating ring. The bottom of the transmission ring is meshed with the first gear. The first gear is connected to the rotating blade through a rotating shaft. A plurality of limiting blocks are provided on both the bottom of the rotating ring and the upper part of the transmission ring.

[0012] In one embodiment of the present invention, the distance between two adjacent limiting blocks located on the same side satisfies the requirement that the rotating blade rotates 90 degrees.

[0013] In one embodiment of the present invention, the power source includes a motor and a second gear, the second gear is connected to the output end of the motor, the second gear is meshed with the transmission ring, and the motor is electrically connected to the central processing unit.

[0014] In a second aspect, the present invention provides an SVG cooling system control method, including an SVG cooling system as described in claim 2, and further comprising;

[0015] Set the heat dissipation medium temperature threshold for several heat exchangers in the heat exchange system.

[0016] Real-time acquisition of the heat exchanger's heat dissipation medium temperature;

[0017] The acquired temperature value is compared with the set temperature threshold.

[0018] Based on the comparison results, the heat exchange system is controlled to switch operating modes.

[0019] In one embodiment of the present invention, the step of controlling the heat exchange system to switch operating modes based on the comparison results includes:

[0020] If the heat exchanger of the heat exchange system exceeds the temperature threshold, the fan system is controlled to rotate in reverse, and the power system is controlled to rotate the rotating blades to a horizontal position, and the working power of the remaining heat exchange systems is increased.

[0021] If the temperature threshold is not exceeded, the device will remain in its initial operating state.

[0022] Set the control time for the fan system to rotate in the reverse direction;

[0023] Once the set time is reached, the fan rotates normally, reducing the operating power of the remaining heat exchange systems to their initial state.

[0024] Thirdly, the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements an SVG cooling system control method according to any one of claims 6 to 7.

[0025] Fourthly, the present invention provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements an SVG cooling system control method as described in any one of claims 6 to 7.

[0026] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0027] This invention mainly includes several heat exchange systems. Each heat exchange system comprises a shell, a data acquisition module, and a central processing unit. The shell houses a heat exchanger and a fan system. The fan system is located above the heat exchanger to provide cooling air intake. The heat exchanger is used for heat exchange of the heat dissipation medium. The central processing unit coordinates the operation of each cooling fan and their backflushing based on the cooling effect, thereby ensuring both cooling and backflushing effects. The degree of water temperature drop after each fan operation determines the corresponding screen plate blockage. Based on the current environmental conditions, the cooling effect after removing one or more fans is predicted. Several fans operate at high power to lower the coolant temperature to a lower value, then a small number of fans continue cooling, while the remaining fans reverse direction to backflush and blow away catkins and other debris from the screen plate. This can, to a certain extent, solve the problem of poor cooling effect caused by catkins and other debris clogging the screen plate. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the control method of the present invention;

[0030] Figure 2 This is a schematic diagram of a control method according to another embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the rotating blade closing structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the rotating blade of the present invention when it is open;

[0034] Figure 6 This is a schematic diagram of the meshing between the rotating ring and the transmission ring of the present invention;

[0035] Icons: 1-Outer shell, 2-Transmission ring, 3-Rotating ring, 4-Motor, 5-Rotating blade, 6-First gear, 7-Limiting block, 8-Second gear. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Please refer to Figures 1-6 This invention provides an SVG cooling system, which includes several heat exchange systems. The heat exchange systems in this invention are mainly used for cooling. The heat exchange systems mainly include a shell 1, a heat exchanger, a fan system, a data acquisition module, and a central processing unit.

[0038] The outer casing 1 is supported and installed using a conventional structure. The heat exchanger and the fan system are both installed inside the outer casing 1. The fan system is installed on the upper part of the heat exchanger. The fan system mainly includes a fan and a circuit control system for the fan. When the fan rotates, it drives cold air through the heat exchanger to achieve heat exchange. In this invention, both the fan system and the heat exchanger use commonly available equipment.

[0039] The acquisition module can be a temperature sensor to collect the temperature of the cooling medium inside the heat exchanger. It is preferably installed at the outlet of the heat exchanger to collect the temperature of the cooling medium after cooling for further judgment. The acquisition module is electrically connected to the central processing unit to transmit the collected temperature data to the central processing unit in real time.

[0040] The central processing unit is also electrically connected to the fan system and all heat exchange systems, controlling the forward and reverse rotation of the fan system and the operating power of the heat exchange systems.

[0041] This invention mainly includes several heat exchange systems. Each heat exchange system comprises a housing 1, a data acquisition module, and a central processing unit. The housing 1 houses a heat exchanger and a fan system. The fan system is located above the heat exchanger to provide cooling air intake. The heat exchanger is used for heat exchange of the heat dissipation medium. The central processing unit coordinates the operation of each cooling fan and backflushing based on the cooling effect, thereby ensuring both cooling and backflushing effects. The degree of water temperature drop after each fan operation determines the corresponding screen plate blockage. Based on the current environmental conditions, the cooling effect after removing one or more fans is predicted. Several fans operate at high power to lower the coolant temperature to a lower value, then a small number of fans continue cooling, while the remaining fans reverse direction to backflush and blow away catkins and other debris from the screen plate. This can, to a certain extent, solve the problem of poor cooling effect caused by catkins and other debris clogging the screen plate.

[0042] In this embodiment, a rotating ring 3 and a rotating blade 5 are also provided between the heat exchanger and the fan system. The rotating ring 3 is rotatably connected inside the outer casing 1. This embodiment does not limit the way of rotatable connection. Ball bearings can be provided between the rotating ring 3 and the outer casing 1 for rotation. Alternatively, a bracket and a rotating shaft can be provided inside the outer casing 1 to connect the rotating ring 3 to the rotating shaft.

[0043] Several rotating blades 5 are provided, all of which are connected to the rotating ring 3 in a flip-up manner. It should be noted that the area of ​​the rotating blades 5 is smaller than the inner ring area of ​​the rotating ring 3, so that the back-blowing air of the fan system flows out from the gap. The rotating blades 5 are also connected to a power system for driving the rotating blades 5 to rotate.

[0044] The purpose of the rotating blade 5 is that, due to the fan's structure, the airflow during reverse blowing is less than the airflow during forward blowing. Rotating blade 5 opens or closes the air duct, leaving a gap. When reverse blowing is needed, blade 5 rotates and closes the air duct. At this time, the air generated by the fan can only flow to the heat exchanger through the gap, thus concentrating the airflow in one place and ensuring the strength of the reverse blowing. This increases the air pressure and improves the effect of blowing away blockages. When reverse blowing is not needed, blade 5 rotates 90 degrees, opening the air duct for normal operation.

[0045] If the position of the notch does not move, the cleaning effect on the bottom of the heat exchanger is very poor, and only that part is cleaned well. Therefore, in another implementation, the power system includes a drive ring 2 and a power source for driving the drive ring 2 to rotate.

[0046] The power source includes a motor 4 and a second gear 8. The second gear 8 is connected to the output end of the motor 4 and meshes with the transmission ring 2. The motor 4 is electrically connected to the central processing unit.

[0047] The transmission ring 2 is also rotatably connected inside the housing, and can be rotatably connected in the same way as the rotating ring 3. The upper part of the rotating ring 3 is provided with a first gear 6, which is connected to a rotating shaft. The rotating shaft is rotatably connected to the rotating ring 3. The rotating blade 5 is fixedly connected to the rotating shaft and rotates with the rotating shaft. The bottom of the transmission ring 2 is meshed with the first gear 6.

[0048] In addition, limiting blocks 7 are provided at the bottom of the transmission ring 2 and the top of the rotating ring 3. The main purpose of these limiting blocks 7 is that, through the rotation of the transmission ring 2, the upper and lower adjacent limiting blocks 7 come into contact, thereby driving the rotating ring 3 to rotate, so as to move the notch on the rotating ring 3 that is not blocked by the rotating blade 5.

[0049] It should be noted that the distance between two adjacent limit blocks 7 on the same side should be such that the rotating blade 5 stops after rotating 90 degrees. This distance can be adjusted according to the actual usage.

[0050] Specifically, the rotating blade 5 is initially in a vertical position. After the motor 4 is started, the motor 4 drives the transmission ring 2 to rotate via the second gear 8. At this time, the first gear 6, which meshes with the transmission ring 2, rotates, thereby driving the rotating blade 5 to a 90-degree angle, making the rotating blade 5 horizontal. The air duct is closed, and the limiting block 7 of the transmission ring 2 just abuts against the limiting block 7 of the rotating ring 3, preventing them from continuing to rotate relative to each other. Subsequently, the motor 4 continues to rotate, causing the transmission ring 2 and the rotating ring 3 to rotate together, thus causing the notch to rotate relative to the mesh plate. After the backflushing ends, the motor 4 reverses, causing the transmission ring 2 to rotate relative to the rotating ring 3 and driving the rotating blade 5 to reverse 90 degrees, opening the air duct. Immediately, the limiting block 7 of the transmission ring 2 just abuts against the limiting block 7 of the rotating ring 3, preventing them from continuing to rotate relative to each other.

[0051] This invention provides a control method for an SVG cooling system, including the aforementioned SVG cooling system, and further comprising:

[0052] S101: Set the heat dissipation medium temperature threshold for several heat exchangers in the heat exchange system;

[0053] S102: Real-time acquisition of the heat exchanger's heat dissipation medium temperature;

[0054] S103: Compare the acquired temperature value with the set temperature threshold;

[0055] S104: Control the heat exchange system to switch operating modes based on the comparison results.

[0056] In one embodiment of the present invention, controlling the heat exchange system to switch operating modes based on the comparison results includes:

[0057] S201: If the heat exchanger of this heat exchange system exceeds the temperature threshold, control the fan system to rotate in the opposite direction and control the power system to rotate the rotating blade 5 to a horizontal state, and increase the working power of the remaining heat exchange systems.

[0058] S202: When the acquired temperature value is lower than the temperature threshold, control the fan system to rotate in the forward direction;

[0059] S203: If the temperature threshold is not exceeded, the device will continue to operate in its initial state.

[0060] The following practical example illustrates the above steps in detail:

[0061] The acquisition module in each heat exchange system transmits the collected temperature values ​​to the central processing unit in real time. During the central processing, the collected temperature data is compared with the set temperature threshold. If a heat exchange system exceeds the temperature threshold, it is determined that the heat exchanger is blocked. At this time, an execution signal is sent to reverse the fan system of that heat exchange system, and execution signals are sent to increase the working power of other heat exchange systems except that heat exchange system. The purpose is to prevent the normal heat exchange operation of the equipment from being affected if one heat exchange system is not working. At the same time, an execution signal to start the power supply of motor 4 is sent to the control system of motor 4, and the rotating blades 5 are in the closed state.

[0062] Once the temperature drops below the temperature threshold, an execution signal is sent to the fan system to rotate in the forward direction, and execution signals are sent to the other heat exchange systems except for this heat exchange system to restore to their initial operating power. At the same time, an execution signal is sent to the control system of motor 4 to rotate in the reverse direction, so that the rotating blades 5 return to normal and are in the open state. It should be noted that when motor 4 rotates in reverse, a certain energizing time can be set. The energizing time is sufficient to fully open the rotating blades 5, thus saving energy.

[0063] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0064] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. This computer software product, stored in a storage medium, includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0065] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An SVG cooling system, characterized in that, It includes several heat exchange systems, wherein the heat exchange systems include; The outer casing contains a heat exchanger and a fan system. The fan system is located above the heat exchanger and is used to provide the intake of cooling air. A mesh plate is located below the fan system. The heat exchanger is used for the heat exchange of the heat dissipation medium. The acquisition module is used to acquire the temperature of the heat dissipation medium of the heat exchanger. A central processing unit (CPU) is electrically connected to the heat exchange system, the data acquisition module, and the fan system. The CPU is used to control the forward and reverse rotation of the fan system and the operating power of the heat exchange system. A rotating ring and rotating blades are also provided between the heat exchanger and the fan system. The rotating ring is slidably connected to the outer shell. Several rotating blades are laid around the center of the rotating ring. The rotating blades are rotatably connected to the rotating ring. The area of ​​the rotating blades is smaller than the area of ​​the inner ring circle of the rotating ring. The rotating blade is also connected to a power system for driving the rotating blade to rotate; The power system includes a transmission ring and a power source for driving the transmission ring to rotate. The transmission ring is rotatably connected inside the housing. A first gear is provided on the upper part of the rotating ring. The bottom of the transmission ring is meshed with the first gear. The first gear is connected to the rotating blade through a rotating shaft. Several limiting blocks are provided on both the bottom of the rotating ring and the upper part of the transmission ring.

2. The SVG cooling system according to claim 1, characterized in that, The distance between two adjacent limiting blocks on the same side is such that the rotating blade rotates 90 degrees.

3. The SVG cooling system according to claim 2, characterized in that, The power source includes a motor and a second gear. The second gear is connected to the output end of the motor and meshes with the transmission ring. The motor is electrically connected to the central processing unit.

4. A control method for an SVG cooling system, characterized in that, Including the SVG cooling system as described in claim 1, and further comprising: Set the heat dissipation medium temperature threshold for several heat exchangers in the heat exchange system. Real-time acquisition of the heat exchanger's heat dissipation medium temperature; The acquired temperature value is compared with the set temperature threshold. Based on the comparison results, the heat exchange system is controlled to switch operating modes.

5. The SVG cooling system control method according to claim 4, characterized in that, The method of controlling the heat exchange system to switch operating modes based on the comparison results includes: If the heat exchanger of the heat exchange system exceeds the temperature threshold, the fan system is controlled to rotate in reverse, and the power system is controlled to rotate the rotating blades to a horizontal position, and the working power of the remaining heat exchange systems is increased. Once the acquired temperature value is lower than the temperature threshold, the fan system is controlled to rotate in the forward direction. If the temperature threshold is not exceeded, the device will remain in its initial operating state.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements an SVG cooling system control method according to any one of claims 4 to 5.

7. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements an SVG cooling system control method as described in any one of claims 4 to 5.

Citation Information

Patent Citations

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