A protection mechanism for the control cabinet of a thermal power plant

Abstract

The present invention discloses a protection mechanism for a control cabinet of a thermal power plant, including a sealing unit, which includes a sealing window, a driving component behind the sealing window, a driven assembly on one side of the driving component, a side wall on one side of the driving component, heat dissipation holes on the side wall, and a spring assembly at the bottom of the driven assembly; a flame retardant unit, which includes a valve assembly, a connecting pipe on one side of the valve assembly, multiple carbon dioxide fire extinguishers on one side of the connecting pipe, and a disconnection component on one side of the side wall; and a containing unit, which includes a cabinet body, a cabinet door on one side of the cabinet body, and a handle on one side of the cabinet door. The beneficial effects of the present invention are that during use, it is possible to judge whether the control cabinet catches fire spontaneously according to temperature changes, block the source of oxygen to achieve a fire extinguishing effect, and at the same time start the carbon dioxide gas fire extinguishers in the cabinet body to further improve the fire extinguishing effect. At the same time, the power interface is cut off to achieve disconnection, playing a protective role. Under normal circumstances, it can also shelter from rain and wind and expand heat dissipation.

Description

Technical Field

[0001] The present invention relates to the field of control cabinets for thermal power plants, and particularly to a protection mechanism for a control cabinet of a thermal power plant. Background Art

[0002] A thermal power plant, abbreviated as a thermal power station, is a factory that uses combustibles as fuel to produce electric energy. Its basic production process is that the fuel heats water to generate steam during combustion, converting the chemical energy of the fuel into heat energy. The steam pressure drives the steam turbine to rotate, converting heat energy into mechanical energy. Then the steam turbine drives the generator to rotate, converting mechanical energy into electric energy. The control cabinets of thermal power plants are mostly electrical control cabinets, which assemble switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring.

[0003] In the existing control cabinets during use, generally, a leakage protection function is adopted to detect the energized equipment to avoid the occurrence of leakage, which may affect the equipment and operating personnel. When there are relatively serious circuit faults or the detector is damaged in the control cabinet, the circuit connection cannot be immediately disconnected, resulting in the control cabinet catching fire spontaneously, and in severe cases, it may affect a fire. When the power cabinet is in use and its cabinet door is in a closed state, when preparing to perform a fire extinguishing operation, the staff needs to open the cabinet door and then use a fire extinguisher to extinguish the power module inside. During combustion, the cabinet door of the power cabinet is in a high-temperature state, and direct contact by the staff with the cabinet door is likely to cause burns. At the same time, when the power module of the power cabinet is burning, the flame will escape from the heat dissipation holes on the side of the power cabinet along with the direction, igniting the objects around the power cabinet, thus causing the spread of the fire, which poses a great potential safety hazard. Moreover, a large amount of toxic smoke is generated during the combustion of the power module, which not only pollutes the environment but also causes damage to the bodies of the staff. For this reason, we propose a protection mechanism for a control cabinet of a thermal power plant. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the invention of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the invention. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problem that the control cabinet of a thermal power plant is prone to overheating and spontaneous combustion, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a protection mechanism for a control cabinet of a thermal power plant, which can solve the problems of spontaneous combustion and circuit damage of the control cabinet caused by overheating of components.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: A protection mechanism for a control cabinet of a thermal power plant, which includes a sealing unit, including a sealing window, a driving component arranged behind the sealing window, a driven component arranged on one side of the driving component, a side wall arranged on one side of the driving component, heat dissipation holes arranged on the side wall, and a spring component arranged at the bottom of the driven component;

[0008] A flame retardant unit, including a valve assembly, a connecting pipe arranged on one side of the valve assembly, multiple carbon dioxide fire extinguishers arranged on one side of the connecting pipe, and a disconnection component arranged on one side of the side wall;

[0009] A containing unit, including a cabinet body, a cabinet door arranged on one side of the cabinet body, and a handle arranged on one side of the cabinet door.

[0010] As a preferred solution of the protection mechanism for the control cabinet of the thermal power plant of the present invention, wherein: The driving component includes a rope winding assembly, multiple columns arranged on one side of the rope winding assembly, a transmission component arranged on one side of the columns, and multiple grooves arranged on one side of the columns.

[0011] As a preferred solution of the protection mechanism for the control cabinet of the thermal power plant of the present invention, wherein: The rope winding assembly includes a temperature sensor, a servo motor arranged at the bottom of the temperature sensor, a rope winding disc arranged at the bottom of the servo motor, and a steel rope arranged on the rope winding disc.

[0012] As a preferred solution of the protection mechanism for the control cabinet of the thermal power plant of the present invention, wherein: The transmission component includes a window bracket, a first half gear arranged on one side of the window bracket, a second half gear arranged on one side of the first half gear, a first connecting rod arranged on one side of the second half gear, a second connecting rod arranged on one side of the first connecting rod, a slider arranged at the bottom of the second connecting rod, and a support rod arranged on one side of the slider.

[0013] As a preferred solution of the protection mechanism for the control cabinet of the thermal power plant of the present invention, wherein: The first half gear and the second half gear are movably connected to the column and are in gear meshing; The support rod is fixedly connected to the steel rope.

[0014] As a preferred solution of the protection mechanism for the control cabinet of the thermal power plant of the present invention, wherein: The driven component includes a connecting plate arranged on one side of the slider, a pull rod arranged on one side of the connecting plate, a pulley arranged on one side of the pull rod, and a sliding groove arranged on one side of the pulley.

[0015] As a preferred embodiment of the protection mechanism for the control cabinet of a thermal power plant according to the present invention, wherein: the spring assembly includes multiple sets of bumps, a hook disposed on one side of the bump, and a spring disposed on one side of the hook.

[0016] As a preferred embodiment of the protection mechanism for the control cabinet of a thermal power plant according to the present invention, wherein: the valve assembly includes a rotary valve disposed on the connecting pipe, a gear disposed on the rotary valve, a rack disposed on one side of the gear, a conveying pipe disposed on the gear, and a nozzle on the conveying pipe.

[0017] As a preferred embodiment of the protection mechanism for the control cabinet of a thermal power plant according to the present invention, wherein: the gear meshes with the rack; the bump is fixedly connected to the rack; the bump is fixedly connected to the disconnection component.

[0018] As a preferred embodiment of the protection mechanism for the control cabinet of a thermal power plant according to the present invention, wherein: the disconnection component includes a wiring board and a main wiring board disposed on one side of the wiring board.

[0019] Advantages of the present invention: Through the settings of the sealing unit, flame retardant unit and accommodation unit, during use, it can judge whether the control cabinet catches fire automatically according to temperature changes. When it catches fire, it can automatically close the heat dissipation window, thereby achieving a relatively sealed state of the control cabinet, blocking the oxygen source, achieving a fire extinguishing effect, and at the same time starting the carbon dioxide gas fire extinguisher in the cabinet to further improve the fire extinguishing effect, and can cut off the power interface to achieve disconnection, playing a protective role in emergency accidents, reducing possible accidents and damages, and even playing a role in sheltering from rain and wind and expanding heat dissipation under normal circumstances. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0021] Figure 1 It is a side view structure diagram inside the cabinet of the protection mechanism for the control cabinet of a thermal power plant.

[0022] Figure 2 It is an overall structure diagram inside the cabinet of the protection mechanism for the control cabinet of a thermal power plant.

[0023] Figure 3 It is an overall structure diagram inside the cabinet of the protection mechanism for the control cabinet of a thermal power plant.

[0024] Figure 4 Front view of the sealing unit of the protection mechanism for the control cabinet of a thermal power plant.

[0025] Figure 5 Structural diagram at position A of the protection mechanism for the control cabinet of a thermal power plant.

[0026] Figure 6 Structural diagram at position B of the protection mechanism for the control cabinet of a thermal power plant.

[0027] Figure 7 Top view of the protection mechanism for the control cabinet of a thermal power plant.

[0028] Figure 8 Flow chart of the temperature sensor of the protection mechanism for the control cabinet of a thermal power plant. Specific implementation manners

[0029] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific implementation manners of the present invention is provided in conjunction with the accompanying drawings of the specification.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0031] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0032] Embodiment 1

[0033] Referring to Figures 1 to 3 , this is the first embodiment of the present invention. This embodiment provides a protection mechanism for the control cabinet of a thermal power plant, which includes a sealing unit 100, including a sealing window 101, a driving component 102 arranged behind the sealing window 101, a driven component 103 arranged on one side of the driving component 102, a side wall 104 arranged on one side of the driving component 102, heat dissipation holes 105 arranged on the side wall 104, and a spring component 106 arranged at the bottom of the driven component 103;

[0034] A flame retardant unit 200, including a valve assembly 201, a communication pipe 202 arranged on one side of the valve assembly 201, multiple groups of carbon dioxide fire extinguishers 203 arranged on one side of the communication pipe 202, and a disconnection component 204 arranged on one side of the side wall 104;

[0035] The accommodating unit 300 includes a cabinet body 301, a cabinet door 302 provided on one side of the cabinet body 301, and a handle 303 provided on one side of the cabinet door 302.

[0036] It should be noted that the driving component 102 is arranged at the top position and around the cabinet body 301, the driven assembly 103 is arranged at the bottom of the driving component 102, the heat dissipation holes 105 are arranged through the side wall 104, the valve assembly 201 is arranged at the bottom of the driven assembly 103, the valve assembly 201 realizes the start and stop of the carbon dioxide fire extinguisher 203 under the action of the driven assembly 103, and the disconnection component 204 is arranged on the opposite side of the valve assembly 201.

[0037] During use, under the action of the driving component 102 on the driven assembly 103, the effects on the valve assembly 201 and the disconnection component 204 at the bottom are realized, and the cabinet body 301 plays a role in protecting the internal components.

[0038] In summary, this design can block the source of oxygen, start the carbon dioxide gas fire extinguisher in the cabinet, cut off the power interface to achieve disconnection, and play a role in sheltering from rain and wind under normal circumstances.

[0039] Embodiment 2

[0040] Refer to Figures 1 to 8 , which is the second embodiment of the present invention. The difference from the first embodiment is that it further includes. In the previous embodiment, the protection mechanism for the control cabinet of the thermal power plant includes a sealing unit 100, which includes a sealing window 101, a driving component 102 arranged behind the sealing window 101, a driven assembly 103 arranged on one side of the driving component 102, a side wall 104 arranged on one side of the driving component 102, heat dissipation holes 105 arranged on the side wall 104, and a spring assembly 106 arranged at the bottom of the driven assembly 103;

[0041] A flame retardant unit 200, which includes a valve assembly 201, a connecting pipe 202 arranged on one side of the valve assembly 201, multiple groups of carbon dioxide fire extinguishers 203 arranged on one side of the connecting pipe 202, and a disconnection component 204 arranged on one side of the side wall 104;

[0042] The accommodating unit 300 includes a cabinet body 301, a cabinet door 302 provided on one side of the cabinet body 301, and a handle 303 provided on one side of the cabinet door 302.

[0043] Furthermore, the driving component 102 includes a rope winding assembly 102a, a plurality of groups of columns 102b arranged on one side of the rope winding assembly 102a, a transmission assembly 102c arranged on one side of the columns 102b, and a plurality of groups of grooves 102d arranged on one side of the columns 102b.

[0044] Furthermore, the rope winding assembly 102a includes a temperature sensor 102a-1, a servo motor 102a-2 arranged at the bottom of the temperature sensor 102a-1, a rope winding disc 102a-3 arranged at the bottom of the servo motor 102a-2, and a steel rope 102a-4 arranged on the rope winding disc 102a-3.

[0045] Furthermore, the transmission assembly 102c includes a window bracket 102c-1, a first half gear 102c-2 arranged on one side of the window bracket 102c-1, a second half gear 102c-3 arranged on one side of the first half gear 102c-2, a first connecting rod 102c-4 arranged on one side of the second half gear 102c-3, a second connecting rod 102c-5 arranged on one side of the first connecting rod 102c-4, a slider 102c-6 arranged at the bottom of the second connecting rod 102c-5, and a support rod 102c-7 arranged on one side of the slider 102c-6.

[0046] Furthermore, the first half gear 102c-2 and the second half gear 102c-3 are movably connected to the column 102b and are in gear engagement; the support rod 102c-7 is fixedly connected to the steel rope 102a-4.

[0047] It should be noted that, first of all, the temperature sensor 102a-1 in the rope winding assembly 102a is fixedly connected to the central position at the top of the cabinet body. A servo motor 102a-2 is connected below the temperature sensor 102a-1. The rotating shaft of the servo motor 102a-2 is fixedly connected to a rope winding disc 102a-3. The rope winding disc 102a-3 can rotate with the rotation of the rotating shaft of the servo motor 102a-2. The temperature sensor 102a-1 can control the start and stop of the servo motor 102a-2, and lock the rotating shaft after the servo motor 102a-2 stops. The servo motor 102a-2 can drive the rope winding disc 102a-3 to rotate, and the winding and unwinding effect of the steel ropes 102a-4 around the top of the cabinet body 301 is realized through the rotation of the rope winding disc 102a-3. The steel ropes 102a-4 are placed along the hooks at the top of the cabinet body 301 to the columns 102b. The columns 102b are welded at the four corners of the cabinet body 301, and the number is 4. Three groups of grooves 102d are arranged in an array through the columns 102b. The transmission assemblies 102c are arranged on the columns 102b. Three groups of transmission assemblies 102c are arranged on each column 102b, that is, there are 12 groups of transmission assemblies 102c in total. Every two groups of transmission assemblies 102c can control the opening and closing of a sealing window 101, and the number of the sealing windows 101 can be changed to change the number of the transmission assemblies 102c.

[0048] Preferably, the window bracket 102c-1 and the first half gear 102c-2 are of an integral structure. One side of the window bracket 102c-1 is bolted to the side of the sealed window 101, and the window bracket 102c-1 provides a supporting force for the sealed window 101. The second half gear 102c-3 and the first connecting rod 102c-4 are of an integral structure. The second half gear 102c-3 is in gear meshing with the first half gear 102c-2, and both are movably fixed to one side of the column 102b and can rotate on their own. The other end of the first connecting rod 102c-4 is movably and fixedly connected to one end of the second connecting rod 102c-5, and can rotate around the connected end point. A slider 102c-6 is fixedly connected to the other end of the second connecting rod 102c-5. The slider 102c-6 is engaged in the groove 102d, and the slider 102c-6 cooperates with the groove 102d, and the slider 102c-6 can move up and down in the groove 102d. Three sets of transmission components 102c are provided on one side of the groove 102d of the column 102b, and a support rod 102c-7 is provided on the other side of the column 102b. One end of the support rod 102c-7 is fixedly connected to the upper slider 102c-6, and the other end is fixedly connected to the lower slider 102c-6, connecting the transmission components 102c together, that is, connecting the three sets of transmission components 102c together. When one side of the transmission component 102c rises or falls, all the transmission components 102c will move together. The steel rope 102a-4 is fixedly connected to the support rod 102c-7 at the top, that is, the slider 102c-6 on the other side of the transmission component 102c at the top is fixedly connected to the top of the support rod 102c-7 and is fixedly connected to the steel rope 102a-4. The steel rope 102a-4 can drive the lifting movement of the slider 102c-6 by retracting and releasing.

[0049] Specifically, while the slider 102c-6 moves up and down in the groove 102d, it will also drive the movement of the second connecting rod 102c-5 and the first connecting rod 102c-4, thereby affecting the rotation of the second half gear 102c-3. Under the action of gear meshing, the first half gear 102c-2 will rotate with the rotation of the second half gear 102c-3, thus realizing the opening and closing of the sealed window 101.

[0050] During use, first, under the operation of the temperature sensor 102a-1, it is judged whether the temperature exceeds the predetermined temperature. First, when the temperature exceeds the predetermined temperature, the servo motor 102a-2 starts to rotate in the opposite direction, and the tightened steel rope 102a-4 is released. As a result, under the action of gravity, the sealed window 101 will close, thereby driving the movement of the transmission component 102c. Second, when the servo motor 102a-2 rotates forward under manual adjustment, the steel rope 102a-4 is tightened, pulling the steel rope 102a-4 and driving the movement of the transmission component 102c, and the sealed window 101 will be reopened.

[0051] In summary, under the control of the temperature sensor 102a-1, this design can achieve the opening and closing of the sealing window 101, thereby blocking oxygen and achieving a flame-retardant effect.

[0052] Embodiment 3

[0053] Refer to Figures 1 to 8 , which is the third embodiment of the present invention. The difference from the first embodiment is that it further includes. In the previous embodiment, the protection mechanism for the control cabinet of a thermal power plant includes a sealing unit 100, which includes a sealing window 101, a driving component 102 arranged behind the sealing window 101, a driven component 103 arranged on one side of the driving component 102, a side wall 104 arranged on one side of the driving component 102, heat dissipation holes 105 arranged on the side wall 104, and a spring component 106 arranged at the bottom of the driven component 103;

[0054] A flame-retardant unit 200, which includes a valve component 201, a connecting pipe 202 arranged on one side of the valve component 201, multiple groups of carbon dioxide fire extinguishers 203 arranged on one side of the connecting pipe 202, and a disconnection component 204 arranged on one side of the side wall 104;

[0055] A containing unit 300, which includes a cabinet body 301, a cabinet door 302 arranged on one side of the cabinet body 301, and a handle 303 arranged on one side of the cabinet door 302.

[0056] Furthermore, the driving component 102 includes a rope winding component 102a, multiple groups of columns 102b arranged on one side of the rope winding component 102a, a transmission component 102c arranged on one side of the columns 102b, and multiple groups of grooves 102d arranged on one side of the columns 102b.

[0057] Furthermore, the rope winding component 102a includes a temperature sensor 102a-1, a servo motor 102a-2 arranged at the bottom of the temperature sensor 102a-1, a rope winding disc 102a-3 arranged at the bottom of the servo motor 102a-2, and a steel rope 102a-4 arranged on the rope winding disc 102a-3.

[0058] Furthermore, the transmission component 102c includes a window bracket 102c-1, a first half gear 102c-2 arranged on one side of the window bracket 102c-1, a second half gear 102c-3 arranged on one side of the first half gear 102c-2, a first connecting rod 102c-4 arranged on one side of the second half gear 102c-3, a second connecting rod 102c-5 arranged on one side of the first connecting rod 102c-4, a slider 102c-6 arranged at the bottom of the second connecting rod 102c-5, and a support rod 102c-7 arranged on one side of the slider 102c-6.

[0059] Further, the first half gear 102c-2 and the second half gear 102c-3 are movably connected to the column 102b and are in gear meshing; the support rod 102c-7 is fixedly connected to the steel cable 102a-4.

[0060] Further, the driven assembly 103 includes a connecting plate 103a disposed on one side of the slider 102c-6, a pull rod 103b disposed on one side of the connecting plate 103a, a pulley 103c disposed on one side of the pull rod 103b, and a sliding groove 103d disposed on one side of the pulley 103c.

[0061] Further, the spring assembly 106 includes multiple groups of bumps 106a, a hook 106b disposed on one side of the bump 106a, and a spring 106c disposed on one side of the hook 106b.

[0062] Further, the valve assembly 201 includes a rotary valve 201a disposed on the communication pipe 202, a gear 201b disposed on the rotary valve 201a, a rack 201c disposed on one side of the gear 201b, a delivery pipe 201d disposed on the gear 201b, and a nozzle 201e on the delivery pipe 201d.

[0063] Further, the gear 201b is in gear meshing with the rack 201c; the bump 106a is fixedly connected to the rack 201c; the bump 106a is fixedly connected to the disconnection component 204.

[0064] Further, the disconnection component 204 includes a wiring board 204a and a main wiring board 204b disposed on one side of the wiring board 204a.

[0065] It should be noted that, first of all, the temperature sensor 102a-1 in the rope winding assembly 102a is fixedly connected to the central position at the top of the cabinet body. The processor and the single-chip microcomputer are connected below the temperature sensor 102a-1. A servo motor 102a-2 is installed below the single-chip microcomputer. The rotating shaft of the servo motor 102a-2 is fixedly connected to a rope winding disc 102a-3. The rope winding disc 102a-3 can rotate with the rotation of the rotating shaft of the servo motor 102a-2. The winding and unwinding effect of the steel ropes 102a-4 around the top of the cabinet body 301 is realized through the rotation of the rope winding disc 102a-3. The rope winding assembly 102a functions as a driving switch; the columns 102b are welded at the four corners of the cabinet body 301, and the number is 4. Three groups of grooves 102d distributed in an array are provided through the columns 102b; the transmission assemblies 102c are arranged on the columns 102b. Three groups of transmission assemblies 102c are arranged on each column 102b, that is, there are a total of 12 groups of transmission assemblies 102c. Every two groups of transmission assemblies 102c can control the opening and closing of a sealing window 101, and the number of the sealing windows 101 can be changed to change the number of the transmission assemblies 102c.

[0066] Preferably, the window bracket 102c-1 and the first half gear 102c-2 are of an integral structure. One side of the window bracket 102c-1 is bolted to the side of the sealed window 101, and the window bracket 102c-1 provides support for the sealed window 101. The second half gear 102c-3 and the first connecting rod 102c-4 are of an integral structure. The second half gear 102c-3 meshes with the first half gear 102c-2, and both are movably fixed to one side of the column 102b and can rotate on their own. The other end of the first connecting rod 102c-4 is movably and fixedly connected to one end of the second connecting rod 102c-5, and can rotate around the connecting end point. A slider 102c-6 is fixedly connected to the other end of the second connecting rod 102c-5. The slider 102c-6 is engaged in the groove 102d, and the slider 102c-6 cooperates with the groove 102d. The slider 102c-6 can move up and down in the groove 102d, and the slider 102c-6 provides support and limit for the second connecting rod 102c-5. Three sets of transmission components 102c are provided on one side of the groove 102d of the column 102b, and a support rod 102c-7 is provided on the other side of the column 102b. One end of the support rod 102c-7 is fixedly connected to the upper slider 102c-6, and the other end is fixedly connected to the lower slider 102c-6, connecting the transmission components 102c together, that is, connecting the three sets of transmission components 102c together. When one side of the transmission component 102c rises or falls, all the transmission components 102c will move together. The steel rope 102a-4 is fixedly connected to the support rod 102c-7 at the top, that is, the other side slider 102c-6 of the transmission component 102c at the top is fixedly connected to the top of the support rod 102c-7 and fixedly connected to the steel rope 102a-4. The steel rope 102a-4 can drive the lifting movement of the slider 102c-6 by retracting and releasing.

[0067] Specifically, while the slider 102c-6 moves up and down in the groove 102d, it also drives the movement of the second connecting rod 102c-5 and the first connecting rod 102c-4, thereby affecting the rotation of the second half gear 102c-3. Under the action of gear meshing, the first half gear 102c-2 will rotate with the rotation of the second half gear 102c-3, thus realizing the opening and closing of the sealed window 101.

[0068] Preferably, two sets of connecting plates 103a are fixedly connected to both sides of the lowermost slider 102c-6. At the other ends of the two sets of connecting plates 103a, a pull rod 103b is fixedly connected. The other end of the pull rod 103b is movably connected with a pulley 103c, which is matched with a sliding groove 103d welded to the column 102b. The pulley 103c reciprocates left and right in the sliding groove 103d. When the lowermost slider 102c-6 descends, it will drive the pull rod 103b to move together. Since one end of the pull rod 103b is limited by the slider 102c-6, only one end of the pull rod 103 can move up and down with the slider 102c-6, and the other end of the pull rod 103 drives the pulley 103c to slide in the sliding groove 103d. When one end of the pull rod 103b is driven downward by the slider 102c-6, the pulley 103c slides to one side. Since there are two sets of pull rods 103b on one side of the column 102b, when the pulley 103c slides to one side, the two pulleys 103c move away from each other. Then the convex blocks 106a fixedly connected to the pulley 103c will also move away from each other. And on the opposite side of the convex block 106a, a hook 106b is fixedly arranged. One end of the spring 106c is matched with the hook 106b, and the other end is fixedly connected to the cabinet body 301. When the convex block 106a moves away from each other, the spring 106c also provides a pulling force to promote them to move away from each other.

[0069] Furthermore, two racks 201c are respectively fixedly connected above two sets of convex blocks 106a on one side. When the convex blocks 106a move away from each other along with the pulley 103c, the gears 201b will also move away from each other, which will also drive the racks 201c to move. Two gears 201b are meshed inside the racks 201c. A rotary valve 201a is fixedly connected below the gears 201b. When the gears 201b rotate, the rotary valve 201a will be opened. It should be noted that the rotation opening directions of the rotary valves 201a on both sides are opposite. Four carbon dioxide fire extinguishers 203 are arranged at the bottom of the cabinet body 301, and every two carbon dioxide fire extinguishers 203 are connected by a connecting pipe 202. Above the connecting pipe 202, a rotary valve 201a is arranged. Above the rotary valve 201a, a delivery pipe 201d is arranged. The delivery pipe 201d is distributed along one side of the cabinet body. Nozzles 201e are arranged through the delivery pipe 201d, and the nozzles 201e face the inner diagonal of the cabinet body 301. Such a design can expand the spraying range.

[0070] Furthermore, a wiring board 204a and a main wiring board 204b are respectively fixedly connected above two sets of convex blocks 106a on the other side. When the convex blocks 106a move away from each other along with the pulley 103c, they will drive the wiring board 204a and the main wiring board 204b to separate, achieving the effect of power disconnection.

[0071] During use, when a fire breaks out or the temperature is abnormal, first, under the operation of the temperature sensor 102a-1, it is determined whether the temperature exceeds a predetermined temperature. First, when the temperature exceeds the predetermined temperature, the servo motor 102a-2 starts to rotate in the opposite direction, and the tightened steel cable 102a-4 is released. As a result, under the action of gravity, the sealing window 101 will close, thereby driving the transmission component 102c to move. Under the action of the slider 102c-6 and the pulley 103c on the pull rod 103b, the inclination angle changes, resulting in the opposite movement of the pulley 103c connected to the pull rod 103b. The pulley 103c will drive the rack 201c fixedly connected to the convex block 106a to move in the opposite direction. The rack 201c will rotate and engage with the gear 201b on one side, thereby opening the rotary valve 201a and sending carbon dioxide gas into the delivery pipe 201d to achieve the effect of extinguishing the fire. Secondly, the convex block 106a on the other side will drive the wiring board 204a to separate from the main wiring board 204b to achieve the effect of power disconnection.

[0072] Second, when the temperature is normal or under normal circumstances, the servo motor 102a-2 rotates forward under manual adjustment, tightens the steel cable 102a-4, pulls the steel cable 102a-4, drives the transmission component 102c to move, and will reopen the sealing window 101. It will also cause the convex block 106a at the bottom of the cabinet body 301 to move relatively, close the rotary valve 201a again and connect the wiring board 204a to the main wiring board 204b.

[0073] In summary, through the settings of the sealing unit 100, the flame retardant unit 200 and the accommodating unit 300, during use, it is possible to judge whether the control cabinet is self-igniting according to the temperature change. When self-igniting, the heat dissipation window can be automatically closed, thereby realizing a relatively sealed state of the control cabinet, blocking the source of oxygen, achieving the fire extinguishing effect, starting the carbon dioxide gas fire extinguisher in the cabinet at the same time to further improve the fire extinguishing effect, and it is possible to cut off the power interface to achieve disconnection, playing a protective role in case of emergency accidents, reducing possible accidents and damages, and even playing the role of sheltering from rain and wind and expanding heat dissipation under normal circumstances.

[0074] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., variations in the size, scale, structure, shape and proportion of various elements, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or re-ordered according to alternative embodiments. In the claims, any "means plus function" clauses are intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0075] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention, or those features that are not relevant to the implementation of the present invention).

[0076] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A protection mechanism for the control cabinet of a thermal power plant, characterized in that: Comprising, A sealing unit (100), including a sealing window (101), a driving component (102) disposed behind the sealing window (101), a driven assembly (103) disposed on one side of the driving component (102), a side wall (104) disposed on one side of the driving component (102), heat dissipation holes (105) disposed on the side wall (104), and a spring assembly (106) disposed at the bottom of the driven assembly (103); A flame retardant unit (200), including a valve assembly (201), a connecting pipe (202) disposed on one side of the valve assembly (201), multiple groups of carbon dioxide fire extinguishers (203) disposed on one side of the connecting pipe (202), and a disconnection component (204) disposed on one side of the side wall (104); A housing unit (300), including a cabinet body (301), a cabinet door (302) disposed on one side of the cabinet body (301), and a handle (303) disposed on one side of the cabinet door (302); The driving component (102) includes a rope winding assembly (102a), multiple groups of columns (102b) disposed on one side of the rope winding assembly (102a), a transmission assembly (102c) disposed on one side of the columns (102b), and multiple groups of grooves (102d) disposed on one side of the columns (102b); The rope winding assembly (102a) includes a temperature sensor (102a-1), a servo motor (102a-2) disposed at the bottom of the temperature sensor (102a-1), a rope winding disc (102a-3) disposed at the bottom of the servo motor (102a-2), and a steel rope (102a-4) disposed on the rope winding disc (102a-3); The transmission assembly (102c) includes a window bracket (102c-1), a first half gear (102c-2) disposed on one side of the window bracket (102c-1), a second half gear (102c-3) disposed on one side of the first half gear (102c-2), a first connecting rod (102c-4) disposed on one side of the second half gear (102c-3), a second connecting rod (102c-5) disposed on one side of the first connecting rod (102c-4), a slider (102c-6) disposed at the bottom of the second connecting rod (102c-5), and a support rod (102c-7) disposed on one side of the slider (102c-6); The slider (102c-6) is engaged in the groove (102d); The support rod (102c-7) is fixedly connected to the steel rope (102a-4).

2. The protection mechanism for a control cabinet of a thermal power plant according to claim 1, characterized in that: The first half gear (102c-2) and the second half gear (102c-3) are movably connected to the column (102b) and are in gear engagement.

3. The protection mechanism for a control cabinet of a thermal power plant according to claim 2, characterized in that: The driven assembly (103) includes a connecting plate (103a) disposed on one side of the slider (102c-6), a pull rod (103b) disposed on one side of the connecting plate (103a), a pulley (103c) disposed on one side of the pull rod (103b), and a sliding groove (103d) disposed on one side of the pulley (103c).

4. The protection mechanism for the control cabinet of a thermal power plant according to claim 3, wherein: The spring assembly (106) includes multiple groups of bumps (106a), a hook (106b) disposed on one side of the bump (106a), and a spring (106c) disposed on one side of the hook (106b); The pulley (103c) is fixedly connected to the bump (106a).

5. The protection mechanism for the control cabinet of a thermal power plant according to claim 4, wherein: The valve assembly (201) includes a rotary valve (201a) disposed on the connecting pipe (202), a gear (201b) disposed on the rotary valve (201a), a rack (201c) disposed on one side of the gear (201b), a delivery pipe (201d) disposed on the gear (201b), and a nozzle (201e) on the delivery pipe (201d).

6. The protection mechanism for the control cabinet of a thermal power plant according to claim 5, wherein: The gear (201b) is in gear engagement with the rack (201c); the bump (106a) is fixedly connected to the rack (201c); the bump (106a) is fixedly connected to the disconnection component (204).

7. The protection mechanism for the control cabinet of a thermal power plant according to claim 6, wherein: The disconnection component (204) includes a wiring board (204a) and a main wiring board (204b) disposed on one side of the wiring board (204a).

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