Cooling device for high-voltage interrupting module

Abstract

The invention provides a cooling device for a high-voltage interrupting module, and relates to the technical field of interrupting module cooling, the cooling device comprises a heat dissipation box body, box covers are mounted at the left end and the right end of the heat dissipation box body, an interrupting mounting plate is arranged in the heat dissipation box body, and an interrupting electromagnetic valve is mounted at the top end of the interrupting mounting plate; a temperature control assembly is arranged at the top end of the heat dissipation box body and comprises a temperature control fan installed at the top end of the heat dissipation box body, cooling assemblies are arranged on the front side and the rear side of the heat dissipation box body, and each cooling assembly comprises cooling plates installed on the front side and the rear side of the interior of the heat dissipation box body. Cooling fins are mounted at the front end and the rear end of the heat dissipation box body; through the arrangement of the cooling assembly, the cooling plate is directly attached to the heating face of the interruption electromagnetic valve, the heat conduction efficiency is greatly improved, and therefore the low-temperature state of the cooling plate is kept, and the interruption electromagnetic valve and the interruption mounting plate are continuously cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of interrupter module cooling, and in particular to a cooling device for a high-voltage interrupter module. Background Art

[0002] The high-pressure shut-off module is a key component of the turbine regulation and safety system. It controls the oil drain port of the turbine EH oil system's safety oil and is the hub of the entire shut-off system. When the unit needs to be shut down urgently, the shutdown signal sent by DEH or ETS causes the four high-pressure shut-off solenoid valves on the high-pressure shut-off module to lose power. At the same time, the quick-closing solenoid valves of each valve and the main steam valve are energized, and the safety oil pressure is quickly removed, causing each steam valve to close quickly, shutting off the turbine's steam inlet passage. The solenoid valve will continue to accumulate heat during use. The high temperature of the solenoid valve will cause the insulation components of the cable that is energized by the solenoid valve to heat up, and the current flowing through the solenoid valve coil itself will also generate heat. A large amount of heat cannot be taken away, which will cause the coil and insulation components to overheat. If the insulation components are damaged due to overheating, the coil will discharge, and then the solenoid valve will be lost. Control.

[0003] After searching, the document of announcement number "CN217632587U" mentioned "a cooling and protection device for a high-voltage emergency shutoff module. At present, the temporary fence cannot completely isolate and protect, and the reliability of the temporary fan equipment is not high. The present invention comprises: a cooling water inlet pipe (1), a return pipe (13), a cooling water inlet manifold (4) and a cooling water return manifold (12); the cooling water inlet pipe is passed through the protection box (19) and is connected to the cooling water inlet manifold, and the cooling water inlet manifold and the cooling water return manifold are connected through a plurality of cooling pipes (5) surrounding the high-voltage shutoff module; the return pipe is passed through the protection box and is connected to the cooling water return manifold". When in use, it protects the high-voltage shutoff module and isolates the external heat source, preventing the surrounding steam pipes from damaging the high-voltage shutoff module and the risk of human error.

[0004] However, the existing air-cooling structure has low fan heat dissipation efficiency and is prone to dust accumulation, which leads to a decrease in the heat dissipation effect and is unable to quickly and effectively remove heat. It cannot meet the heat dissipation requirements during high-load operation. In addition, the heat conduction method between the cooling components and the heat-generating components is not optimized enough, and the heat transfer speed is slow, which affects the overall heat dissipation effect.

[0005] Therefore, we provide a cooling device for a high-voltage interrupter module to solve the above problems. Summary of the Invention

[0006] In order to remedy the above deficiencies, the present invention provides a cooling device for a high-voltage trip module, aiming to solve the above problems.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A cooling device for a high-voltage shutoff module comprises a heat dissipation box, wherein box covers are installed at the left and right ends of the heat dissipation box, a shutoff mounting plate is provided inside the heat dissipation box, a shutoff solenoid valve is installed at the top of the shutoff mounting plate, a temperature control component is provided at the top of the heat dissipation box, the temperature control component includes a temperature control fan installed at the top of the heat dissipation box, an infrared temperature sensor is installed at the inner top of the heat dissipation box, cooling components are provided on the front and rear sides of the heat dissipation box, the cooling components include cooling plates installed on the front and rear sides of the heat dissipation box, and cooling fins are installed on the front and rear ends of the heat dissipation box.

[0009] As a further description of the above technical solution:

[0010] The surface of the box cover is connected to a heat sink by a slot. The heat sink is in a downward-inclined louver structure. Two groups of heat sinks are provided. The heat sinks are symmetrically arranged about the central axis of the heat sink body.

[0011] As a further description of the above technical solution:

[0012] A protective plate is installed on the upper side of the temperature-controlled fan. The inner side of the protective plate is a mesh structure, and the protective plate is made of stainless steel.

[0013] As a further description of the above technical solution:

[0014] There are four groups of infrared temperature sensors, each group of which corresponds one to one with the shutoff solenoid valve. The infrared temperature sensor is located directly above the shutoff solenoid valve. A display is installed at the left end of the box cover, and the infrared temperature sensor is connected to the display via telecommunication.

[0015] As a further description of the above technical solution:

[0016] The inner wall of the cooling plate is provided with a heat sink. The cooling plate is made of a copper alloy with a high thermal conductivity coefficient. The cooling plate is directly attached to the heating surface of the shut-off solenoid valve.

[0017] As a further description of the above technical solution:

[0018] The interior of the cooling plate is a hollow structure. A cooling pipe is installed inside the cooling plate. The cooling pipe is made of copper alloy and is distributed in a 'U'-shaped circulation within the cooling plate. The cooling pipe is connected to an external heat exchanger.

[0019] As a further description of the above technical solution:

[0020] The cooling fins are made of aluminum alloy, the surfaces of the cooling fins are anodized, and the cooling fins are bonded to the surface of the cooling plate.

[0021] As a further description of the above technical solution:

[0022] An air guide cover is installed on the outside of the cooling fin, and the air guide cover is made of stainless steel. Air guide fans are installed on the left and right ends of the air guide cover, and the air guide fans at both ends of the air guide cover have the same wind direction.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention, through the setting of the temperature control component, can monitor the temperature changes of the shut-off solenoid valve in real time according to the infrared temperature sensor, and realize automatic adjustment of the internal temperature of the heat dissipation box by starting and shutting down the temperature-controlled fan. When the temperature exceeds the preset threshold, the temperature-controlled fan automatically starts to accelerate the air flow inside the heat dissipation box, improve the heat dissipation efficiency, ensure that the shut-off solenoid valve can still maintain good heat dissipation performance under high-load operation, avoid equipment failure caused by overheating, and improve the reliability and service life of the entire high-voltage shut-off module. At the same time, the infrared temperature sensor transmits the temperature data to the display in real time, so that the staff can intuitively understand the working status of the shut-off solenoid valve, facilitate timely maintenance and inspection, and further improve the safety and stability of the equipment.

[0025] 2. The present invention greatly improves the heat conduction efficiency by setting a cooling component and utilizing the direct contact between the cooling plate and the heating surface of the shut-off solenoid valve. At the same time, the heat on the cooling plate is transferred to the outside of the heat dissipation box through the cooling fins, and the wind direction is the same through the guide fans at both ends of the deflector, forming a stable airflow, accelerating the air circulation inside the heat dissipation box, accelerating the air flow speed outside the heat dissipation box, and improving the heat dissipation efficiency of the cooling fins. The coolant is sent into the cooling pipe through an external heat exchanger to absorb the heat on the cooling plate, thereby maintaining the low temperature state of the cooling plate, continuously cooling the shut-off solenoid valve and the shut-off mounting plate, ensuring that the shut-off mounting plate and the shut-off solenoid valve operate stably in a high-temperature environment, and effectively preventing equipment failure or safety accidents caused by overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the coordination structure of the heat dissipation box, cooling fins and air guide cover of the present invention;

[0028] Figure 3 Schematic diagram of the coordination structure of the heat dissipation box body, box cover and heat dissipation plate of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the heat dissipation box of the present invention;

[0030] Figure 5 Schematic diagram of the matching structure of the cooling plate and the cooling pipe of the present invention;

[0031] Figure 6 It is a schematic diagram of the matching structure of the heat dissipation box and the infrared temperature sensor of the present invention.

[0032] Numbers in the figure: 1. Heat dissipation box; 2. Box cover; 3. Shut-off mounting plate; 4. Shut-off solenoid valve; 5. Temperature control component; 501. Temperature control fan; 502. Protective plate; 503. Heat sink; 504. Infrared temperature sensor; 505. Display; 6. Cooling component; 601. Cooling plate; 602. Heat sink; 603. Cooling pipe; 604. Cooling fin; 605. Air guide cover; 606. Air guide fan. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1-6 As shown, the present invention provides a technical solution: a cooling device for a high-voltage shutoff module, comprising a heat dissipation box 1, a box cover 2 is installed at the left and right ends of the heat dissipation box 1, a shutoff mounting plate 3 is provided inside the heat dissipation box 1, a shutoff solenoid valve 4 is installed at the top of the shutoff mounting plate 3, a temperature control component 5 is provided at the top of the heat dissipation box 1, the temperature control component 5 includes a temperature control fan 501 installed at the top of the heat dissipation box 1, an infrared temperature sensor 504 is installed at the inner top of the heat dissipation box 1, a cooling component 6 is provided on the front and rear sides of the heat dissipation box 1, the cooling component 6 includes cooling plates 601 installed on the front and rear sides of the heat dissipation box 1, and cooling fins 604 are installed at the front and rear ends of the heat dissipation box 1.

[0035] Furthermore, the surface of the box cover 2 is connected to a heat sink 503 by a slot, and the heat sink 503 has a downward-inclined louver structure. There are two groups of heat sinks 503, and the heat sinks 503 are symmetrically arranged about the central axis of the heat dissipation box body 1. When in use, the temperature-controlled fan 501 is used to dissipate heat to the shutoff mounting plate 3 and the shutoff solenoid valve 4 in the box cover 2. At the same time, the setting of the heat sink 503 ensures the heat dissipation effect, and the heat sink 503 has a downward-inclined louver structure, which can effectively prevent dust from accumulating on the surface of the heat sink 503. At the same time, the two groups of heat sinks 503 ensure the uniformity of heat dissipation on the left and right sides of the heat dissipation box body 1, avoiding the problem of local overheating caused by uneven heat dissipation.

[0036] Furthermore, a protective plate 502 is installed on the upper side of the temperature-controlled fan 501. The inner side of the protective plate 502 is a mesh structure. The protective plate 502 is made of stainless steel metal. The temperature-controlled fan 501 is protected by the protective plate 502 to prevent external impurities from entering the interior of the heat dissipation box 1, causing dust to accumulate on the shielding mounting plate 3, affecting the overall heat dissipation effect.

[0037] Furthermore, four groups of infrared temperature sensors 504 are provided, and each group of infrared temperature sensors 504 corresponds one-to-one to the shut-off solenoid valve 4. The infrared temperature sensor 504 is located directly above the shut-off solenoid valve 4, and a display 505 is installed at the left end of the box cover 2. The infrared temperature sensors 504 are all connected to the display 505 by telecommunication. During the operation of the equipment, the shut-off solenoid valve 4 is subjected to real-time temperature detection through the infrared temperature sensor 504, and the temperature data is transmitted to the display 505 for display. By observing the temperature data on the display 505, the staff can intuitively understand the working status and temperature conditions of the shut-off solenoid valve 4. Once the temperature is too high, timely measures can be taken to intervene to prevent equipment failure or safety accidents caused by excessive temperature.

[0038] Furthermore, a heat sink 602 is provided on the inner wall of the cooling plate 601. The cooling plate 601 is made of a copper alloy with high thermal conductivity. The cooling plate 601 is directly bonded to the heating surface of the shut-off solenoid valve 4. When in use, the heat generated by the shut-off solenoid valve 4 and the shut-off mounting plate 3 is absorbed and transferred through the cooling plate 601. At the same time, since the cooling plate 601 and the shut-off solenoid valve 4 are bonded to each other, heat can be quickly transferred to the cooling plate 601. The high thermal conductivity of the copper alloy ensures that the cooling plate 601 can quickly absorb and conduct heat, thereby achieving effective cooling of the shut-off solenoid valve 4.

[0039] Furthermore, the interior of the cooling plate 601 is a hollow structure, and a cooling pipe 603 is installed inside the cooling plate 601. The cooling pipe 603 is made of copper alloy and is distributed in a 'U' shape in a circulation pattern in the cooling plate 601. The cooling pipe 603 is connected to an external heat exchanger, and the coolant is sent into the cooling pipe 603 through the external heat exchanger. The coolant circulates in the cooling pipe 603, thereby effectively absorbing the heat on the cooling plate 601 and releasing the heat to the external environment through the external heat exchanger, thereby maintaining the low temperature state of the cooling plate 601 and continuously cooling the shut-off solenoid valve 4 and the shut-off mounting plate 3. At the same time, through its 'U'-shaped circulation distribution in the cooling plate 601, the circulation time and contact area of ​​the coolant in the cooling plate 601 are increased, thereby improving the cooling efficiency and cooling uniformity.

[0040] Furthermore, the cooling fins 604 are made of aluminum alloy, the surface of the cooling fins 604 is anodized, and the cooling fins 604 are fitted to the surface of the cooling plate 601. The heat on the cooling plate 601 is transferred to the outside of the heat dissipation box 1 through the cooling fins 604, thereby increasing the heat dissipation area of ​​the cooling plate 601 and improving the heat dissipation effect.

[0041] Furthermore, a deflector 605 is installed on the outside of the cooling fin 604. The deflector 605 is made of stainless steel. Deflector fans 606 are installed on the left and right ends of the deflector 605. The wind directions of the deflector fans 606 at both ends of the deflector 605 are the same. The cooling fins 604 are protected by the deflector 605 to prevent external impurities from directly contacting the cooling fins 604, causing blockage of the cooling fins 604 and affecting the overall heat dissipation effect. At the same time, the setting of the deflector fan 606 can accelerate the air flow speed outside the heat dissipation box 1, further improving the heat dissipation efficiency of the cooling fins 604, thereby ensuring the cooling effect of the cooling device on the blocking mounting plate 3 and the blocking solenoid valve 4.

[0042] Working principle: Move the device to the working position. When in use, install the high-voltage shut-off module inside the heat dissipation box 1. During the operation of the equipment, the infrared temperature sensor 504 is used to detect the temperature of the shut-off solenoid valve 4 in real time, and the temperature data is transmitted to the display 505 for display. By observing the temperature data on the display 505, the staff can intuitively understand the working status and temperature of the shut-off solenoid valve 4. At the same time, the temperature-controlled fan 501 is used to dissipate heat to the shut-off mounting plate 3 and the shut-off solenoid valve 4 in the box cover 2. When it is detected that the temperature of the shut-off module is higher than the threshold, the heat generated by the shut-off solenoid valve 4 and the shut-off mounting plate 3 is absorbed and transferred through the cooling plate 601, and then the heat on the cooling plate 601 is dissipated through the cooling fins 604. It is transferred to the outside of the heat dissipation box 1, and then the guide fan 606 is started to speed up the air flow speed outside the heat dissipation box 1, improve the heat dissipation efficiency of the cooling fins 604, and ensure the cooling effect of the cooling device on the blocking mounting plate 3 and the blocking solenoid valve 4. Then, the coolant is sent to the cooling pipe 603 through an external heat exchanger. The coolant circulates in the cooling pipe 603 and absorbs the heat on the cooling plate 601, thereby maintaining the low temperature state of the cooling plate 601, and continuously cooling the blocking solenoid valve 4 and the blocking mounting plate 3, ensuring that the blocking mounting plate 3 and the blocking solenoid valve 4 operate stably in a high-temperature environment, and effectively preventing equipment failure or safety accidents caused by overheating. In this way, the use process of a cooling device for a high-voltage blocking module is completed.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a high-voltage interrupter module, comprising a heat dissipation box (1), characterized in that: The left and right ends of the heat dissipation box (1) are provided with a box cover (2); the interior of the heat dissipation box (1) is provided with a blocking mounting plate (3); the top of the blocking mounting plate (3) is provided with a blocking solenoid valve (4); the top of the heat dissipation box (1) is provided with a temperature control component (5); the temperature control component (5) includes a temperature control fan (501) installed at the top of the heat dissipation box (1); an infrared temperature sensor (504) is installed at the inner top of the heat dissipation box (1); the front and rear sides of the heat dissipation box (1) are provided with a cooling component (6); the cooling component (6) includes a cooling plate (601) installed at the front and rear sides of the heat dissipation box (1); and the front and rear ends of the heat dissipation box (1) are provided with cooling fins (604).

2. A cooling device for a high voltage interrupter module according to claim 1, characterized in that: The surface of the box cover (2) is connected to a heat dissipation plate (503) via a slot, and the heat dissipation plate (503) is in a downwardly inclined louver structure. Two groups of heat dissipation plates (503) are provided, and the heat dissipation plates (503) are symmetrically arranged about the central axis of the heat dissipation box body (1).

3. The cooling device for a high voltage interrupter module according to claim 1, characterized in that: A protective plate (502) is installed on the upper side of the temperature-controlled fan (501), the inner side of the protective plate (502) is a mesh structure, and the protective plate (502) is made of stainless steel.

4. The cooling device for a high-voltage interrupter module according to claim 1, characterized in that: Four groups of infrared temperature sensors (504) are provided, and each group of infrared temperature sensors (504) corresponds one-to-one to a shutoff solenoid valve (4). The infrared temperature sensors (504) are located directly above the shutoff solenoid valve (4). A display (505) is installed at the left end of the box cover (2), and each infrared temperature sensor (504) is connected to the display (505) via telecommunication.

5. The cooling device for a high-voltage interrupter module according to claim 1, characterized in that: The inner wall of the cooling plate (601) is provided with a heat sink (602). The cooling plate (601) is made of a copper alloy with a high thermal conductivity. The cooling plate (601) is directly attached to the heating surface of the shut-off solenoid valve (4).

6. The cooling device for a high voltage interrupter module according to claim 1, characterized in that: The interior of the cooling plate (601) is a hollow structure. A cooling pipe (603) is installed inside the cooling plate (601). The cooling pipe (603) is made of copper alloy and is distributed in a 'U'-shaped circulation inside the cooling plate (601). The cooling pipe (603) is connected to an external heat exchanger.

7. The cooling device for a high voltage interrupter module according to claim 1, characterized in that: The cooling fins (604) are made of aluminum alloy, the surfaces of the cooling fins (604) are anodized, and the cooling fins (604) are bonded to the surface of the cooling plate (601).

8. The cooling device for a high voltage interrupter module according to claim 1, characterized in that: A guide cover (605) is installed on the outside of the cooling fin (604), and the guide cover (605) is made of stainless steel. Guide fans (606) are installed on the left and right ends of the guide cover (605), and the guide fans (606) at both ends of the guide cover (605) have the same wind direction.

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