Self-resetting electric leakage warning device for prefabricated substation

Abstract

The invention relates to the technical field of electric leakage warning, in particular to a self-reset electric leakage warning device for a prefabricated substation, which comprises a case, a protection cavity and an equipment cavity are sequentially arranged in the case from top to bottom, and a self-reset electric leakage warning assembly is arranged in the equipment cavity. Second grooves are formed in one side of the protection cavity and one side of the equipment cavity, second box covers are installed on the inner walls of the second grooves, clamping frames are installed on one sides of the second box covers, leakage grooves distributed at equal intervals are formed in the bottoms of the clamping frames, the bottom of the protection cavity and the top of the equipment cavity, and an air bag is placed in the protection cavity. The self-reset type electric leakage warning device can continuously monitor the electric leakage condition of the prefabricated substation, it is ensured that an alarm can still be given in time once the electric leakage problem occurs in follow-up operation, manual reset is not needed, linkage of multiple warning modes is achieved, the warning effect is enhanced, and the working efficiency is improved. The problem that warning cannot be provided due to the fact that acousto-optic warning is damaged is solved, and reliability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of leakage warning, and particularly to a self-resetting leakage warning device for a prefabricated substation. Background Art

[0002] A prefabricated substation, also known as a box-type substation, is a high-voltage switchgear, a distribution transformer, and a low-voltage distribution device. It is a factory prefabricated indoor and outdoor compact distribution equipment arranged according to a certain wiring scheme, that is, functions such as transformer step-down and low-voltage power distribution are organically combined together and installed in a moisture-proof, rust-proof, dust-proof, mouse-proof, fire-proof, anti-theft, heat-insulated, fully enclosed, movable steel structure box. It is especially suitable for urban network construction and transformation and is a brand-new substation that emerged after the civil substation. As an integrated power facility, the prefabricated substation is widely applicable to mines, factories and enterprises, oil and gas fields, and wind power stations. It replaces the original civil power distribution room and substation and becomes a new type of complete power distribution device.

[0003] At present, during the operation of a substation, due to reasons such as aging of electrical equipment and insulation damage, leakage is likely to occur. Leakage will not only damage the equipment but also endanger personal safety. After retrieval, the invention patent with the authorization announcement number CN113109735B discloses a roadside transformer leakage alarm device. The present invention relates to the technical field of leakage alarm, including a base and a cabinet assembly fixedly connected to the top of the base. A fixed sliding mechanism is slidably connected to the bottom of the cabinet assembly. Above the fixed sliding mechanism and inside the cabinet assembly is connected a transformer. On any side inside the cabinet assembly is fixedly connected a leakage monitoring unit. The free end of the leakage monitoring unit is electrically connected to the outside of the transformer. At the center position of the top of the cabinet assembly is fixedly connected a voice player, and at the top of the voice player is fixedly connected an alarm lamp. The current sensor, GPS sensor are electrically connected to the data analysis module, and the data analysis module is electrically connected to the voice player and the alarm lamp respectively. It can collect and analyze the monitored data. When current is detected, the voice player and the alarm lamp can give a reminder to the outside to avoid pedestrians from accidentally getting an electric shock.

[0004] Combined with the above patent, it is found that the prior art has the following deficiencies: After the leakage alarm device in the prior art detects leakage, it needs to be manually reset, the operation is cumbersome, which affects the rapid restoration of the power system operation. Moreover, the warning method is single. When some components inside the alarm system are damaged, it cannot form an effective warning effect, it is difficult to attract the attention of the staff in a complex environment, the adaptability is poor, and the reliability is insufficient. Therefore, a self-resetting leakage warning device for a prefabricated substation is proposed to improve the above problems. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when some components inside the alarm system are damaged, it cannot form an effective warning effect, it is difficult to attract the attention of staff in a complex environment, and its adaptability and reliability are insufficient.

[0006] To solve the above problems, the present invention provides a self-resetting type leakage warning device for a prefabricated substation, including a chassis. Inside the chassis, a protection chamber and an equipment chamber are sequentially arranged from top to bottom. And a self-resetting type leakage warning assembly is arranged in the equipment chamber. On one side of the protection chamber and one side of the equipment chamber, a second groove is opened. And a second box cover is installed on the inner wall of the second groove. A clamping frame is installed on one side of the second box cover. Leakage grooves are arranged at equal distances at the bottom of the clamping frame, the bottom of the protection chamber and the top of the equipment chamber. An airbag is placed inside the protection chamber. And one side of the clamping frame is attached to the surface of the airbag. The inside of the airbag is filled with inert protective gas. A thimble assembly for puncturing the airbag is arranged on the self-resetting type leakage warning assembly. A plurality of gong plates are installed on one side of the second box cover. And a plurality of sound transmission holes corresponding to the positions of the gong plates are opened on the second box cover. Protective nets are installed on the inner walls of the sound transmission holes. A plurality of suspension rods are hinged to the top inner wall of the clamping frame. And hitting balls are fixed to the bottoms of the suspension rods. A first spring in an inclined shape is installed on one side of each suspension rod and the top inner wall of the clamping frame.

[0007] The present invention is further arranged such that the self-resetting type leakage warning assembly includes a storage box installed on the bottom inner wall of the equipment chamber. And a lifting plate is arranged on the inner wall of the storage box. The bottom of the lifting plate and the inside of the storage box are filled with polyelectrolyte hydrogel material. A conductive block is installed on the bottom inner wall of the storage box. And one end of the conductive block is connected with a connecting wire. One end of the connecting wire is installed on the surface of the prefabricated substation with a conductive mounting seat. Guide holes are opened on both sides of the top of the storage box. And guide sleeves are fixed to the inner walls of the guide holes. Telescopic cylinders passing through the guide sleeves are fixed to both sides of the top of the lifting plate. A push rod is inserted into the inner wall of one of the telescopic cylinders. A second spring is installed between the bottom of the push rod and the bottom inner wall of the telescopic cylinder. A portal frame is fixed to the top of the storage box. And a pressure sensor is installed on one side of the top inner wall of the portal frame. The bottom of the pressure sensor is in contact with the top of the push rod.

[0008] The present invention is further arranged such that sealing grooves are arranged around the lifting plate. And sealing strips attached to the inner walls around the storage box are installed on the inner walls of the sealing grooves.

[0009] The present invention is further arranged such that a first groove is opened on one side of the equipment chamber. And a first box cover is installed on the inner wall of the first groove. A through hole is opened at the middle position of the first box cover. A transparent plate is installed on the inner wall of the through hole. A mounting pipe is fixed to one side of the through hole. And an audible and visual alarm is fixedly installed at one end of the mounting pipe. The audible and visual alarm is electrically connected to the pressure sensor.

[0010] The present invention is further configured such that a battery and a controller are further installed on the inner wall of the bottom of the device cavity, and the controller, the battery, the sound and light alarm, and the pressure sensor are electrically connected.

[0011] The present invention is further configured such that a feeding pipe and a discharging pipe are fixed on one side of the storage bin close to the first lid, and valves are installed at one ends of both the feeding pipe and the discharging pipe.

[0012] The present invention is further configured such that an insulating protective tube is installed at one end of the conductive block and on one side of the conductive mounting seat, and the insulating protective tube is sleeved on the power connection wire.

[0013] The present invention is further configured such that two mounting blocks are installed on the top inner walls at both ends of the device cavity, and the same anti-impact mesh cloth is fixedly installed at one ends of the four mounting blocks.

[0014] The present invention is further configured such that the thimble assembly includes circular holes opened at the middle of the top of the storage bin and at the middle of the top of the gantry frame, and the same fixed cylinder is installed on the inner wall of the circular hole. An access hole is opened at the middle of the top of the fixed cylinder. A movable rod passing through the access hole is fixed to the top of the lifting plate. A movable disk fitting on the inner wall of the fixed cylinder is fixed to the outer wall of the movable rod, and a third spring is installed between the top of the movable disk and the inner wall of the top of the fixed cylinder. A thimble is fixed to the top of the movable rod, and a plurality of cutting knives are fixed to the top of the thimble. A through hole for the movable rod to pass through is opened in the anti-impact mesh cloth.

[0015] The present invention is further configured such that mounting ear seats connected to the prefabricated substation are fixedly installed at the four corners on the other side of the chassis, and a heat insulation seat is arranged between one side of the mounting ear seat and the other side of the chassis. The heat insulation seat is attached to the box wall of the prefabricated substation.

[0016] In summary, after adopting the above structure, compared with the prior art, the present invention has the following advantages: 1. By using the above-mentioned self-resetting leakage warning component, when leakage occurs in the prefabricated substation, the current can be introduced into the polyelectrolyte hydrogel material along the connecting wire and the conductive block. Since the polyelectrolyte hydrogel material has the function of expanding when powered on and restoring when powered off, the polyelectrolyte hydrogel material can expand in the storage box, squeeze the lifting plate to rise, and then make the squeezing rod squeeze the pressure sensor upward. The pressure sensor can quickly sense this pressure change, so as to detect the leakage in time, and immediately trigger the sound and light alarm, emit sound and light alarm, and attract the attention of the surrounding personnel. After the leakage is eliminated, the polyelectrolyte hydrogel material is powered off and restored to its original state, the lifting plate descends, and the pressure on the pressure sensor disappears, so that the device is restored to its initial state, forming a self-resetting leakage warning device, which can continuously monitor the leakage of the prefabricated substation, and ensure that in the subsequent operation, if a leakage problem occurs, it can still be timely alarmed without manual reset, thereby improving the convenience and reliability of use.

[0017] 2. By using the above-mentioned ejector pin assembly and airbag, when the self-resetting leakage warning assembly is working, the ejector pin assembly will be driven to rise at the same time, and the airbag will be punctured by the ejector pin assembly, causing the airbag to explode, and the impact force of the gas will be used to drive the striking ball to move, thereby striking the gong plate to make a sound, and the striking ball will overcome the elastic force of the first spring to swing around the hinge point, causing the first spring to vibrate. The vibration of the striking ball will drive the striking ball to repeatedly hit the gong plate with a certain frequency and amplitude, thereby making a sound, realizing the dual warning of sound and light and sound, which can more effectively attract people's attention, realize the linkage of multiple warning methods, enhance the warning effect, and avoid the problem of damage to the sound and light system and inability to provide warnings. It has strong adaptability and sufficient reliability.

[0018] 3. When the above-mentioned airbag and leakage groove are used, when the airbag explodes, the inert protective gas inside the airbag will quickly diffuse in the protective cavity and the equipment cavity. Since the inert protective gas has stable chemical properties and does not support combustion and explosion, when it diffuses to the equipment cavity, it can reduce the oxygen concentration in the cavity, so that a relatively safe environment is formed around the equipment, reducing the risk of fire or explosion caused by electric sparks caused by leakage, thereby improving the safety of prefabricated substations. In addition, since the thermal conductivity of inert gas is generally low, it can play an insulating role in the equipment cavity, reducing the heat generated by the equipment during operation from dissipating to the outside, and also preventing external heat from entering the equipment cavity, preventing the normal operation of electrical components in the equipment cavity from being affected in the event of a fire or explosion, helping to maintain a stable temperature in the equipment cavity, and avoiding the impact of excessive temperature on equipment performance or safety hazards.

[0019] 4. With the above-mentioned impact-proof mesh cloth, when the airbag is punctured and the inert protective gas is quickly released, the impact-proof mesh cloth can play a certain buffering role in the impact force of the gas, reduce the impact force of the gas on the electrical components in the equipment cavity, protect the electrical components from being damaged by excessive impact force, and ensure the stability and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a three-dimensional structural schematic diagram of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 2 FIG. is a structural schematic diagram of a storage box and an airbag of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 3 FIG. is a side cross-sectional view of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 4 FIG. is a structural schematic diagram of a clamping frame and a sound transmission hole of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 5 FIG. is a structural schematic diagram of a gong plate and a first spring of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 6 FIG. is a cross-sectional view of an equipment cavity and a protection cavity of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 7 FIG. is a structural schematic diagram of a connecting wire and a fixing cylinder of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 8 FIG. is a cross-sectional view of a storage box of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 9 FIG. is a structural schematic diagram of a guiding hole of a self-resetting type leakage warning device for a prefabricated substation according to the present invention; Figure 10 FIG. is a structural schematic diagram of a cutting knife and a through hole of a self-resetting type leakage warning device for a prefabricated substation according to the present invention.

[0021] Description of the reference numerals in the drawings: 1. Chassis; 2. First box cover; 3. Transparent plate; 4. Second box cover; 5. Protective net; 6. Heat insulation seat; 7. Mounting ear seat; 8. Conductive mounting seat; 9. Insulating protective tube; 10. Equipment cavity; 11. First groove; 12. Storage bin; 13. Controller; 14. Battery; 15. Impact-resistant mesh cloth; 16. Second groove; 17. Protection cavity; 18. Airbag; 19. Lifting plate; 20. Conductive block; 21. Mounting tube; 22. Acoustic-optic alarm; 23. Clamping frame; 24. Copper gong plate; 25. Striking ball; 26. First spring; 27. Suspension rod; 28. Leakage trough; 29. Sound transmission hole; 30. Mounting block; 31. Thrust rod; 32. Fixed cylinder; 33. Telescopic cylinder; 34. Connecting wire; 35. Valve; 36. Extrusion rod; 37. Pressure sensor; 38. Gantry; 39. Guide sleeve; 40. Sealing strip; 41. Movable rod; 42. Second spring; 43. Movable disk; 44. Third spring; 45. Guide hole; 46. Polyelectrolyte hydrogel material; 47. Cutter; 48. Through hole. Detailed implementation manners

[0022] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0023] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0024] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0025] The first implementation manner: Please refer to Figures 1 - 10, the present invention provides a self-resetting type leakage warning device for a prefabricated substation, including a chassis 1. Inside the chassis 1, a protection chamber 17 and an equipment chamber 10 are sequentially arranged from top to bottom. And a self-resetting type leakage warning component is arranged in the equipment chamber 10. The self-resetting type leakage warning component includes a storage box 12 installed on the bottom inner wall of the equipment chamber 10. And a lifting plate 19 is arranged on the inner wall of the storage box 12. Sealing grooves are arranged around the lifting plate 19. And sealing strips 40 attached to the inner walls around the storage box 12 are installed on the inner walls of the sealing grooves. The bottom of the lifting plate 19 and the inside of the storage box 12 are filled with a polyelectrolyte hydrogel material 46. A conductive block 20 is installed on the bottom inner wall of the storage box 12. And one end of the conductive block 20 is connected with a connecting wire 34. One end of the connecting wire 34 is installed on a conductive mounting seat 8 on the surface of the prefabricated substation. Guide holes 45 are opened on both sides of the top of the storage box 12. And guide sleeves 39 are fixed on the inner walls of the guide holes 45. Telescopic cylinders 33 passing through the guide sleeves 39 are fixed on both sides of the top of the lifting plate 19. A pressing rod 36 is inserted into the inner wall of one of the telescopic cylinders 33. A second spring 42 is installed between the bottom of the pressing rod 36 and the bottom inner wall of the telescopic cylinder 33. A portal frame 38 is fixed on the top of the storage box 12. And a pressure sensor 37 is installed on one side of the top inner wall of the portal frame 38. The bottom of the pressure sensor 37 is in contact with the top of the pressing rod 36. A first groove 11 is opened on one side of the equipment chamber 10. And a first box cover 2 is hermetically installed on the inner wall of the first groove 11. A through hole is opened in the middle position of the first box cover 2. A transparent plate 3 is hermetically installed on the inner wall of the through hole. A mounting pipe 21 is fixed on one side of the through hole. And an acoustic-optic alarm 22 is fixedly installed at one end of the mounting pipe 21. The acoustic-optic alarm 22 is electrically connected with the pressure sensor 37. A battery 14 and a controller 13 are also installed on the bottom inner wall of the equipment chamber 10. And the controller 13, the battery 14, the acoustic-optic alarm 22, and the pressure sensor 37 are electrically connected. Through the functions of the polyelectrolyte hydrogel material 46 expanding when electrified and restoring when powered off, the self-resetting type leakage warning component is driven to give out sound and light alarms, attracting the attention of surrounding people, and enabling the device to return to the initial state, forming a self-resetting type leakage warning device, which can continuously monitor the leakage situation of the prefabricated substation, ensure that once a leakage problem occurs during subsequent operation, an alarm can still be given in time, without manual resetting, improving the convenience and reliability of use. A second groove 16 is opened on one side of the protection chamber 17 and one side of the equipment chamber 10. And a second box cover 4 is hermetically installed on the inner wall of the second groove 16. A clamping frame 23 is installed on one side of the second box cover 4. Leakage grooves 28 are opened at equal intervals at the bottom of the clamping frame 23, the bottom of the protection chamber 17, and the top of the equipment chamber 10. An airbag 18 is placed inside the protection chamber 17. And one side of the clamping frame 23 is attached to the surface of the airbag 18. The inside of the airbag 18 is filled with an inert protective gas. A thimble component for puncturing the airbag 18 is arranged on the self-resetting type leakage warning component.The thimble assembly includes round holes opened at the middle of the top of the storage box 12 and at the middle of the top of the gantry frame 38, and the inner walls of the round holes are provided with the same fixed cylinder 32. An access hole is opened at the middle of the top of the fixed cylinder 32. A movable rod 41 passing through the access hole is fixed to the top of the lifting plate 19. An activity disk 43 attached to the inner wall of the fixed cylinder 32 is fixed to the outer wall of the movable rod 41. A third spring 44 is installed between the top of the activity disk 43 and the inner wall of the top of the fixed cylinder 32. A thimble 31 is fixed to the top of the movable rod 41, and a plurality of cutting knives 47 are fixed to the top of the thimble 31. A through hole 48 for the movable rod 41 to pass through is opened in the anti-impact mesh cloth 15. A plurality of gong plates 24 are installed on one side of the second box cover 4, and a plurality of sound transmission holes 29 corresponding to the positions of the gong plates 24 are opened in the second box cover 4. Protective nets 5 are installed on the inner walls of the sound transmission holes 29. A plurality of suspension rods 27 are hinged to the inner wall of the top of the clamping frame 23, and striking balls 25 are fixed to the bottoms of the suspension rods 27. A first spring 26 in an inclined shape is installed between one side of the suspension rod 27 and the inner wall of the top of the clamping frame 23. The striking balls 25 are attached to the surface of the air bag 18, and the positions of the striking balls 25 correspond to the central positions of one side of the gong plates 24. By puncturing the air bag 18 with the thimble assembly, the striking balls 25 are pushed to move by the gas impact force, thereby striking the gong plates 24 to make a sound, realizing the linkage of multiple warning methods, enhancing the warning effect, and also avoiding the problem that the sound and light system is damaged and cannot provide a warning. It has strong adaptability and sufficient reliability, and enables the inert protective gas inside the air bag 18 to quickly diffuse in the protection chamber 17 and the equipment chamber 10, reducing the oxygen concentration in the chamber, forming a relatively safe environment around the equipment, reducing the risk of fire or explosion caused by electric sparks generated by electric leakage, improving the safety of the prefabricated substation, and playing a heat insulation role in the equipment chamber 10, reducing the heat generated during the operation of the equipment from dissipating outward, and at the same time preventing external heat from entering the equipment chamber 10, preventing the normal operation of the electrical components in the equipment chamber 10 from being affected in case of fire or explosion.,

[0026] In the present invention, a feeding pipe and a discharging pipe are fixed to one side of the storage box 12 close to the first box cover 2, and valves 35 are installed at one ends of both the feeding pipe and the discharging pipe. As Figure 2 、 Figure 3 and Figure 7 shown, the above-mentioned feeding pipe and discharging pipe facilitate the replacement of the polyelectrolyte hydrogel material 46.

[0027] In the present invention, an insulating protective tube 9 is installed between one end of the conductive block 20 and one side of the conductive mounting seat 8, and the insulating protective tube 9 is sleeved on the connecting wire 34. Installation holes for the insulating protective tube 9 to pass through are opened at one ends of both the storage box 12 and the equipment chamber 10. The insulating protective tube 9 is fixedly connected to the installation holes in a sealed manner. As Figure 1 、 Figure 2 and Figure 8As shown, the above-mentioned insulating pipe 9 is used to protect the butt-jointed wire 34.

[0028] In the present invention, mounting lugs 7 connected to the prefabricated substation are fixedly installed at the four corners on the other side of the chassis 1, and a heat insulation seat 6 is provided between one side of the mounting lug 7 and the other side of the chassis 1. The heat insulation seat 6 is attached to the box wall of the prefabricated substation. As Figure 1 and Figure 3 shown, by using the above-mentioned heat insulation seat 6, the heat generated by the leakage warning device and the substation can be isolated, avoiding damage or performance degradation of the device due to high temperature.

[0029] In summary, the working principle of the present invention is as follows: when a leakage occurs in the prefabricated substation, the current is conducted through the conductive mounting seat 8 and the connecting wire 34 to the conductive block 20. The conductive block 20 contacts the polyelectrolyte hydrogel material 46, causing a change in the ion concentration of the polyelectrolyte hydrogel material 46, thereby resulting in its volume expansion. At this time, the lifting plate 19 is pushed upward by the expansion force, driving the telescopic cylinder 33, the second spring 42, and the extrusion rod 36 to rise. Furthermore, the extrusion rod 36 upwardly presses the pressure sensor 37. The pressure sensor 37 can quickly sense this pressure signal and transmit the pressure signal to the controller 13 to control the operation of the sound and light alarm 22, thereby emitting a sound and light alarm to attract the attention of the surrounding personnel. After the leakage situation is eliminated, the polyelectrolyte hydrogel material 46 is powered off and returns to its original state, the lifting plate 19 descends, and the pressure received by the pressure sensor 37 disappears, causing the device to return to its initial state, forming a self-resetting leakage warning device; While the lifting plate 19 is rising, the movable rod 41 inside the thimble assembly is driven to move upward. The movable rod 41 pushes the ejector rod 31 and the cutter 47 upward, finally puncturing the airbag 18. After the airbag 18 is punctured, the internal inert protective gas is quickly ejected. The impact force generated by the gas pushes the hitting ball 25, and the hitting ball 25 swings around the hinge point against the elastic force of the first spring 26, causing the first spring 26 to vibrate, so that the hitting ball 25 repeatedly impacts the gong plate 24 at a certain frequency and amplitude, emitting a sound alarm; When the airbag 18 explodes, the inert protective gas will also quickly diffuse in the protection chamber 17 and the equipment chamber 10. Since the chemical properties of the inert protective gas are stable and it does not support combustion and explosion, when it diffuses into the equipment chamber 10, it can reduce the oxygen concentration in the chamber, forming a relatively safe environment around the equipment, reducing the risk of fire or explosion caused by electric sparks generated by leakage, improving the safety of the prefabricated substation. Moreover, since the thermal conductivity of the inert gas is generally low, it can play a heat insulation role in the equipment chamber 10, reducing the heat generated during equipment operation from dissipating outward, and at the same time preventing external heat from entering the equipment chamber 10, preventing the normal operation of electrical components in the equipment chamber 10 from being affected in case of fire or explosion.

[0030] The second implementation mode: Based on the first implementation mode, the following structure is added in this implementation mode, so that this application can prevent the components in the device cavity 10 from being damaged by impact. The specific settings are as follows: As Figure 2 , Figure 3 , Figure 7 and Figure 10 shown, two mounting blocks 30 are installed on the top of the inner walls at both ends of the device cavity 10, and the same impact-proof mesh cloth 15 is fixedly installed at one end of the four mounting blocks 30. The above-mentioned impact-proof mesh cloth 15 can play a certain buffering role in the impact force of the gas, reduce the impact force of the gas on the electrical components in the device cavity 10, protect the electrical components from being damaged by excessive impact force, and ensure the stability and reliability of the device.

[0031] Combined with the current actual needs, the above implementation mode adopted by this application is not limited to this. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A self-resetting leakage warning device for a prefabricated substation, comprising a chassis (1), characterized in that: The interior of the chassis (1) is provided with a protection chamber (17) and a device chamber (10) in order from top to bottom, and a self-resetting leakage warning component is provided in the device chamber (10), the self-resetting leakage warning component comprising a storage box (12) mounted on the inner wall of the bottom of the device chamber (10), and a lifting plate (19) is provided on the inner wall of the storage box (12), the bottom of the lifting plate (19) and the interior of the storage box (12) are filled with a polyelectrolyte hydrogel material (46), a second groove (16) is provided on one side of the protection chamber (17) and one side of the device chamber (10), a second box cover (4) is installed on the inner wall of the second groove (16), a clamping frame (23) is installed on one side of the second box cover (4), and the bottom of the clamping frame (23), the bottom of the protection chamber (17) and the top of the device chamber (10) are provided with equidistant The protective cavity (17) has a leakage groove (28) distributed therein, an airbag (18) is placed inside the protective cavity (17), and one side of the clamping frame (23) is attached to the surface of the airbag (18), the interior of the airbag (18) is filled with inert protective gas, a pin assembly for puncturing the airbag (18) is arranged on the self-resetting leakage warning assembly, a plurality of copper gong plates (24) are installed on one side of the second box cover (4), and a plurality of sound transmission holes (29) corresponding to the positions of the copper gong plates (24) are opened on the second box cover (4), and the inner walls of the sound transmission holes (29) are all installed with protective nets (5), a plurality of suspension rods (27) are hinged on the top inner wall of the clamping frame (23), and a striking ball (25) is fixed on the bottom of the suspension rods (27), and a first inclined spring (26) is installed on one side of the suspension rod (27) and the top inner wall of the clamping frame (23).

2. A self-resetting leakage warning device for a prefabricated substation according to claim 1, characterized in that: A conductive block (20) is installed on the inner wall of the bottom of the material storage box (12), and one end of the conductive block (20) is connected to a connection wire (34), and one end of the connection wire (34) is connected to a conductive mounting seat (8) on the surface of the prefabricated substation. Guide holes (45) are opened on both sides of the top of the material storage box (12), and guide sleeves (39) are fixed to the inner walls of the guide holes (45). Telescopic cylinders (33) passing through the guide sleeves (39) are fixed to both sides of the top of the lifting plate (19), and an extrusion rod (36) is inserted into the inner wall of one of the telescopic cylinders (33). A second spring (42) is installed at the bottom of the extrusion rod (36) and the inner wall of the bottom of the telescopic cylinder (33). A door frame (38) is fixed on the top of the material storage box (12), and a pressure sensor (37) is installed on one side of the inner wall of the top of the door frame (38), and the bottom of the pressure sensor (37) is in contact with the top of the extrusion rod (36).

3. The self-resetting leakage warning device for a prefabricated substation according to claim 2 is characterized in that: The lifting plate (19) is provided with sealing grooves on its periphery, and the inner wall of the sealing groove is provided with sealing strips (40) that are fitted to the inner walls of the material storage box (12) on its periphery.

4. The self-resetting leakage warning device for a prefabricated substation according to claim 3 is characterized in that: A first groove (11) is provided on one side of the equipment cavity (10), and a first box cover (2) is installed on the inner wall of the first groove (11). A through hole is provided in the middle of the first box cover (2), and a transparent plate (3) is installed on the inner wall of the through hole. A mounting tube (21) is fixed on one side of the through hole, and an audible and visual alarm (22) is fixedly installed on one end of the mounting tube (21), and the audible and visual alarm (22) is electrically connected to a pressure sensor (37).

5. A self-resetting leakage warning device for a prefabricated substation according to claim 4, characterized in that: A battery (14) and a controller (13) are also installed on the bottom inner wall of the equipment cavity (10), and the controller (13), the battery (14), the sound and light alarm (22), and the pressure sensor (37) are electrically connected.

6. The self-resetting leakage warning device for a prefabricated substation according to claim 2 is characterized in that: A material injection pipe and a material discharge pipe are fixed to one side of the material storage box (12) close to the first box cover (2), and valves (35) are installed at one end of the material injection pipe and one end of the material discharge pipe.

7. The self-resetting leakage warning device for a prefabricated substation according to claim 2 is characterized in that: An insulating protective tube (9) is installed on one end of the conductive block (20) and one side of the conductive mounting seat (8), and the insulating protective tube (9) is sleeved on the connecting wire (34).

8. The self-resetting leakage warning device for a prefabricated substation according to claim 2 is characterized in that: Two mounting blocks (30) are installed on the top of the inner walls at both ends of the equipment cavity (10), and the same anti-collision mesh (15) is fixedly installed on one end of the four mounting blocks (30).

9. A self-resetting leakage warning device for a prefabricated substation according to claim 8, characterized in that: The ejector assembly comprises a circular hole formed in the middle of the top of the material storage box (12) and in the middle of the top of the door frame (38), and the same fixed cylinder (32) is installed on the inner wall of the circular hole, an inlet and outlet hole is formed in the middle of the top of the fixed cylinder (32), a movable rod (41) passing through the inlet and outlet hole is fixed on the top of the lifting plate (19), a movable disk (43) affixed to the inner wall of the fixed cylinder (32) is fixed on the outer wall of the movable rod (41), and a third spring (44) is installed between the top of the movable disk (43) and the inner wall of the top of the fixed cylinder (32), a ejector rod (31) is fixed on the top of the movable rod (41), and a plurality of cutters (47) are fixed on the top of the ejector rod (31), and a through hole (48) for the movable rod (41) to pass through is formed on the anti-collision mesh (15).

10. The self-resetting leakage warning device for a prefabricated substation according to claim 1 is characterized in that: The other side of the chassis (1) is fixedly provided with mounting ears (7) connected to the prefabricated substation at four corners, and a heat insulation seat (6) is provided on one side of the mounting ears (7) and the other side of the chassis (1), and the heat insulation seat (6) is attached to the box wall of the prefabricated substation.

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