A new energy electrical cabinet with gas insulation structure

Abstract

The application belongs to the technical field of power distribution network switches, and discloses a new energy electrical cabinet with a gas insulation structure, which comprises a cabinet body and a sealed box body mounted on the cabinet body, a gas pressure gauge is further arranged in the sealed box body, and further comprises a pipeline assembly fixedly connected to the bottom of the cabinet body and a gas storage tank assembly arranged at the bottom of the cabinet body and capable of inputting insulation gas into the sealed box body through the pipeline assembly. When the gas pressure inside the sealed box body is reduced and monitored by the gas pressure gauge, firstly, the early warning mechanism in the cabinet body transmits data to the control center, and simultaneously, the crushing mechanism starts to operate and breaks the ceramic baffle, at this time, the gas in the gas storage tank assembly is input into the sealed box body through the shell and the pipeline assembly, thereby solving the problem that when the gas in the gas insulation cabinet in a remote area leaks, the operation cannot arrive at the scene in time for maintenance, thereby affecting the normal operation of the equipment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power distribution network switch, and specifically relates to a new energy electrical cabinet with a gas insulation structure. BACKGROUND

[0002] The gas insulation environment-friendly cabinet is a medium-voltage power distribution device for looped network power supply, power distribution automation and terminal protection of the power system.

[0003] During the installation process of the gas insulation environment-friendly cabinet, if the operation is not standardized (for example, the bolts are not fastened according to the torque or the impurities on the sealing surface are not cleaned), the sealing failure will be caused, or if the gas pressure is not detected periodically or the aged components are not replaced, the leakage hidden danger will be accumulated, and meanwhile, the unreasonable sealing structure or the improper material selection is easy to cause the leakage. In order to avoid the gas leakage in the gas insulation cabinet, the operator usually sets a gas pressure gauge in the cabinet body for monitoring the pressure in the cabinet (under normal circumstances, the gas pressure in the cabinet is slightly positive), when the pressure in the cabinet is reduced to the early warning position, the early warning mechanism in the cabinet body transmits the data to the control center, and personnel are dispatched by the control center to quickly maintain it.

[0004] However, for some remote places, the maintenance personnel are far away from the position of the gas insulation cabinet, and it is difficult for the maintenance personnel to arrive at the scene for maintenance in time, which may cause the gas leakage problem to be unable to be handled in time, and thus the outside gas invades the sealed cabinet body, thereby affecting the normal operation of the equipment, and even threatening the safety and stability of the entire power system. Therefore, in order to solve the above problems, the new energy electrical cabinet with the gas insulation structure is provided. SUMMARY

[0005] In order to solve the problems in the background art, the application provides a new energy electrical cabinet with a gas insulation structure, which solves the problem that when the gas in the gas insulation cabinet in a remote area leaks, the operation cannot arrive at the scene for maintenance in time and affects the normal operation of the equipment.

[0006] In order to achieve the above purpose, the application provides the following technical scheme: a new energy electrical cabinet with a gas insulation structure, comprising a cabinet body and a sealed box body mounted thereon, a gas pressure gauge is further arranged in the sealed box body, and further comprising: a pipeline assembly fixedly connected to the bottom of the cabinet body; a gas storage tank assembly arranged at the bottom of the cabinet body and capable of inputting insulation gas into the sealed box body through the pipeline assembly;

[0007] a sealing valve mechanism mounted at the output end of the gas storage tank assembly for connecting the gas storage tank assembly and the pipeline assembly when the sealed box body leaks;

[0008] The sealing valve mechanism comprises a housing fixedly connected with the output end of the gas tank assembly, and the other end of the housing is connected with the pipeline assembly; a ceramic baffle is fixedly arranged in the output end of the housing for blocking the connection between the housing and the pipeline assembly; and a breaking mechanism is fixedly arranged in the housing for breaking the ceramic baffle.

[0009] A secondary gas supplement mechanism is further arranged on the housing for continuously supplementing dry gas into the pipeline assembly after the gas in the tank assembly is consumed.

[0010] Preferably, the pipeline assembly comprises a mixing chamber fixedly arranged in the sealing box, and a horizontal pipe is equidistantly and fixedly connected with one side of the mixing chamber; air holes are equidistantly arranged on the horizontal pipe; a connecting pipe is fixedly connected with the other side of the mixing chamber, and one end of the connecting pipe extends to the outside of the sealing box and is connected with the gas tank assembly through the sealing valve mechanism.

[0011] Preferably, the gas tank assembly comprises tank one, tank two and tank three fixedly arranged at the bottom of the cabinet, and the output ends of the three tanks are provided with sealing valve mechanisms, and the gases stored in the three tanks are nitrogen, helium and argon respectively.

[0012] Preferably, the ceramic baffle is in the shape of a round cake, which is concave from the outer ring to the center, and pre-cracking grooves are annularly arranged on both sides of the ceramic baffle.

[0013] Preferably, the breaking mechanism comprises a sealing member fixedly arranged in the housing, a striker movably connected in the sealing member, one end of the striker extending to the outside of the sealing member, a gas storage cavity arranged in the sealing member, and an electric arc generator fixedly arranged on the sealing member, and the electrode end of the electric arc generator extends into the gas storage cavity.

[0014] The gas storage cavity stores combustible gas, and when the pressure gauge detects that the pressure in the sealing box decreases, the electric arc generator is driven to operate to make the gas in the gas storage cavity burn and increase the pressure in the gas storage cavity, so as to push the striker to break the ceramic baffle.

[0015] Preferably, the sealing valve mechanism further comprises an exhaust assembly arranged on the sealing member.

[0016] The exhaust assembly comprises a secondary pipeline fixedly connected with the sealing member, a diaphragm one arranged in the cavity of the secondary pipeline, and an exhaust pipe fixedly connected with the top of the secondary pipeline and connected with the outside; and the gas storage cavity is connected with the secondary pipeline through the sealing member.

[0017] Preferably, the secondary air supplementing mechanism comprises a vertical pipe fixedly communicated with the shell, the bottom end of the vertical pipe extends to below the cabinet, a metal porous plate is fixedly arranged in the vertical pipe in vertical equidistance, a diaphragm two for blocking the vertical pipe is fixedly arranged on the upper surface of the metal porous plate, a heating coil is further arranged at the bottom of the cabinet, the coil part of the heating coil is sleeved outside the vertical pipe, and the metal porous plate and the diaphragm two are in the range of the vertical pipe coil, and a water absorbing assembly is further arranged in the vertical pipe above the heating coil.

[0018] The operation of the heating coil can heat the metal porous plate so as to melt the diaphragm two.

[0019] Preferably, the water absorbing assembly comprises silica gel desiccant and activated carbon, the silica gel desiccant is arranged in the vertical pipe, and the activated carbon is arranged above and below the silica gel desiccant respectively.

[0020] Compared with the prior art, the application has the following beneficial effects:

[0021] The above scheme can ensure that the pressure and the insulating gas in the sealed box can maintain a stable positive pressure state within one hour, and the sealed box is still filled with insulating gas within two hours, so that the problem that the operation cannot arrive at the site in time for maintenance when the gas in the gas insulated cabinet in a remote area leaks and affects the normal operation of the equipment is solved.

[0022] After the gas in the gas tank assembly is exhausted, the gas pressure gauge can monitor that the internal pressure of the sealed box is normal atmospheric pressure, if the operator has not arrived, the heating coil will start to operate and heat the metal porous plate, so that the diaphragm two is melted, and the heating of the metal porous plate can heat the gas in the vertical pipe, the hot air flow can go up and be absorbed by the water absorbing assembly to become dry gas, and then enter the shell and the cabinet through the pipeline assembly, which further increases the stable operation time of the electrical equipment in the sealed box. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the application;

[0024] Figure 2 It is a front view of the application;

[0025] Figure 3 It is a schematic diagram of the pipeline assembly of the application;

[0026] Figure 4 It is a schematic diagram of the front view of the application;

[0027] Figure 5 For Figure 4 enlarged view at A;

[0028] Figure 6 For Figure 4 enlarged view at B;

[0029] Figure 7 For Figure 4 enlarged view at C;

[0030] Figure 8 For

[0031] In the figure: 1, cabinet body; 11, sealed box body; 12, air pressure gauge; 2, pipeline assembly; 21, connecting pipe; 22, mixing cavity; 23, cross pipe; 24, air hole; 3, gas storage tank assembly; 31, tank body one; 32, tank body two; 33, tank body three; 4, sealing valve mechanism; 41, shell; 42, breaking mechanism; 421, sealing element; 422, striker; 423, electric arc generator; 424, gas storage cavity; 43, ceramic baffle; 431, pre-cracking groove; 44, exhaust assembly; 441, auxiliary pipeline; 442, diaphragm one; 443, exhaust pipe; 5, secondary air supplement mechanism; 51, vertical pipe; 52, metal porous plate; 53, diaphragm two; 54, heating coil; 55, water absorption assembly; 551, silica gel desiccant; 552, activated carbon. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] As Figures 1 to 8 shown, the present application provides a new energy electrical cabinet with a gas insulation structure, comprising a cabinet body 1 and a sealed box body 11 installed thereon, and an air pressure gauge 12 is further arranged in the sealed box body 11, further comprising: a pipeline assembly 2 fixedly connected to the bottom of the cabinet body 1; a gas storage tank assembly 3 arranged at the bottom of the cabinet body 1 and capable of inputting insulation gas into the sealed box body 11 through the pipeline assembly 2; and a sealing valve mechanism 4 installed at the output end of the gas storage tank assembly 3 for connecting the gas storage tank assembly 3 and the pipeline assembly 2 when the sealed box body 11 leaks;

[0034] The sealing valve mechanism 4 comprises a shell 41 fixedly connected to the output end of the gas tank assembly 3, the other end of the shell 41 is connected to the pipeline assembly 2, the output end of the shell 41 is fixedly connected with a ceramic baffle 43 for blocking the connection between the shell 41 and the pipeline assembly 2, and the shell 41 is fixedly connected with a breaking mechanism 42 for breaking the ceramic baffle 43;

[0035] The shell 41 is also connected with a secondary gas supplement mechanism 5 for continuously supplementing dry gas into the pipeline assembly 2 after the gas in the gas tank assembly 3 is consumed;

[0036] With the above scheme, when the gas pressure in the sealed box 11 is reduced and monitored by the pressure gauge 12, the warning mechanism in the cabinet 1 will first transmit data to the control center, and the breaking mechanism 42 will start to operate and break the ceramic baffle 43, at this time the gas in the gas tank assembly 3 will be input into the sealed box 11 through the shell 41 and the pipeline assembly 2, thereby ensuring that the pressure in the sealed box 11 and the insulation gas can maintain a stable positive pressure state within one hour, and ensuring that the sealed box 11 is still filled with insulation gas within two hours, thereby solving the problem that when the gas in the gas-insulated cabinet in a remote area leaks, the operation cannot arrive at the scene in time for maintenance, affecting the normal operation of the equipment;

[0037] It is worth noting that the device needs to be replaced after use.

[0038] As shown in Figures 2-4 The pipeline assembly 2 comprises a mixing chamber 22 fixedly installed in the sealed box 11, a horizontal pipe 23 is equidistantly and fixedly connected to one side of the mixing chamber 22, gas holes 24 are equidistantly arranged on the horizontal pipe 23, a connecting pipe 21 is fixedly connected to the other side of the mixing chamber 22, one end of the connecting pipe 21 extends to the outside of the sealed box 11 and is connected to the gas tank assembly 3 through the sealing valve mechanism 4;

[0039] The gas tank assembly 3 comprises tank one 31, tank two 32 and tank three 33 installed at the bottom of the cabinet 1, the output ends of the three tanks are provided with sealing valve mechanisms 4, and the gases stored in the three tanks are nitrogen, helium and argon respectively;

[0040] With the above scheme, by filling different gases in the three tanks, when the three gases enter the mixing chamber 22, they can be mixed and slowly delivered into the sealed box 11 through the gas holes 24, at this time the heavier argon will deposit at the bottom of the sealed box 11 to avoid the situation that the bottom of the sealed box 11 leaks first, and the helium can quickly rise to the top of the sealed box 11 to avoid leakage at the top; and the nitrogen is used to fill the sealed box 11 in large quantities due to its low price.

[0041] As shown in Figures 3-5 and Figure 8As shown, the ceramic baffle 43 is in the shape of a round cake, which is recessed from the outer ring to the center, and the ceramic baffle 43 is provided with a pre-split groove 431 in an annular array on both sides;

[0042] The breaking mechanism 42 comprises a seal 421 fixedly connected to the inside of the shell 41, a striker 422 movably connected in the seal 421, the striker 422 extending to the outside of the seal 421, a gas storage cavity 424 provided in the seal 421, and an electric arc generator 423 fixedly connected to the seal 421, the electrode end of the electric arc generator 423 extending into the gas storage cavity 424;

[0043] The gas storage cavity 424 stores combustible gas, when the gas pressure gauge 12 detects that the pressure in the sealed box 11 decreases, the electric arc generator 423 is driven to operate to make the gas in the gas storage cavity 424 burn and increase the pressure in the gas storage cavity 424, thereby pushing the striker 422 to break through the ceramic baffle 43;

[0044] By the above scheme, the combustible gas in the gas storage cavity 424 is ignited by the electric arc generator 423 to provide greater pressure, and then the striker 422 can break through the ceramic baffle 43, and the pre-split groove 431 is provided, which can ensure that the ceramic baffle 43 can be broken through, and the ceramic baffle 43 can also avoid that the device can withstand the pressure in the gas storage tank assembly 3 when not working.

[0045] As shown in the figure, Figures 3-5 The seal valve mechanism 4 further comprises an exhaust assembly 44 provided on the seal 421; the exhaust assembly 44 comprises a secondary pipeline 441 fixedly connected to the seal 421, a diaphragm one 442 provided in the cavity of the secondary pipeline 441, and the top of the secondary pipeline 441 extending to the outside of the shell 41 and fixedly connected with an exhaust pipe 443 in communication with the outside; the gas storage cavity 424 can be communicated with the secondary pipeline 441 through the seal 421;

[0046] By the above scheme, when the gas in the gas storage cavity 424 is ignited and pushes the striker 422 to move, at this time the gas storage cavity 424 is communicated with the bottom of the secondary pipeline 441, and the diaphragm one 442 is also broken due to the increased pressure in the gas storage cavity 424, so that the secondary pipeline 441 is communicated with the outside through the exhaust pipe 443, so as to exhaust the exhaust gas in the gas storage cavity 424 through the exhaust assembly 44.

[0047] As shown in the figure, Figures 2-7As shown, the secondary air supplement mechanism 5 comprises a vertical pipe 51 fixedly communicated with the shell 41, the bottom end of the vertical pipe 51 extends to below the cabinet 1, a metal porous plate 52 is fixedly arranged vertically and equidistantly in the vertical pipe 51, a diaphragm 53 for blocking the vertical pipe 51 is fixedly arranged on the upper surface of the metal porous plate 52, a heating coil 54 is further arranged at the bottom of the cabinet 1, the coil part of the heating coil 54 is sleeved outside the vertical pipe 51, and the metal porous plate 52 and the diaphragm 53 are in the range of the coil of the vertical pipe 51, and a water absorption assembly 55 is further arranged in the vertical pipe 51 and located above the heating coil 54; the heating coil 54 is operated to heat the metal porous plate 52 so that the diaphragm 53 is melted;

[0048] The water absorption assembly 55 comprises silica gel desiccant 551 and activated carbon 552, the silica gel desiccant 551 is located in the vertical pipe 51, and the activated carbon 552 is located above and below the silica gel desiccant 551 respectively;

[0049] By the above scheme, after the gas in the gas tank assembly 3 is exhausted, the gas pressure gauge 12 can monitor that the internal pressure of the sealed box body 11 is normal, if the operator has not arrived, the heating coil 54 will start to operate and heat the metal porous plate 52, so that the diaphragm 53 is melted, and the heating of the metal porous plate 52 can heat the gas in the vertical pipe 51, the hot gas flow can go up and be absorbed by the water absorption assembly 55 to become dry gas, and then enter the shell 41 and continuously enter the sealed box body 11 through the pipeline assembly 2, thereby further increasing the stable operation time of the electrical equipment in the sealed box body 11;

[0050] It is worth noting that by communicating the vertical pipe 51 with the shell 41, the internal part of the vertical pipe 51 is kept in a sealed state when not working, and the gas in the gas tank assembly 3 can also protect the water absorption assembly 55, so that the device can be stored for a long time.

[0051] The working principle and use process of the present application are as follows:

[0052] When the gas pressure gauge 12 monitors that the gas pressure in the sealed box body 11 decreases, first, the early warning mechanism in the cabinet 1 transmits data to the control center, and at the same time, the breaking mechanism 42 starts to operate and breaks the ceramic baffle 43, at this time, the gas in the gas tank assembly 3 will be input into the sealed box body 11 through the shell 41 and the pipeline assembly 2, so as to ensure that the pressure and the insulating gas in the sealed box body 11 can maintain a stable positive pressure state within one hour, and ensure that the sealed box body 11 is still filled with insulating gas within two hours;

[0053] When the gas in the gas tank assembly 3 is exhausted, the gas pressure gauge 12 will monitor the normal atmospheric pressure in the sealed box 11, if the operator has not arrived, the heating coil 54 will start to run and heat the metal porous plate 52, so that the diaphragm 53 is melted, and the heating of the metal porous plate 52 will heat the gas in the vertical pipe 51, the hot gas flow will go up and be absorbed by the water absorption assembly 55 to become dry gas, then enter the shell 41 and pass through the pipeline assembly 2 to continuously enter the sealed box 11, further increase the stable operation time of the electrical equipment in the sealed box 11.

[0054] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other present or future technologies can provide. It must be noted that, as used in the specification and the appended claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" or "the component" can include a plurality of such components, and so forth.

[0055] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A new energy electrical cabinet with gas insulation structure, comprising a cabinet body (1) and a sealed box body (11) mounted thereon, and a barometer (12) is further arranged in the sealed box body (11), characterized in that, Also include: Pipeline components (2) fixed communication in the cabinet (1) bottom; Gas tank assembly (3) is provided in the cabinet (1) bottom and can be through the pipeline assembly (2) to the sealed box (11) input insulation gas; Sealing valve mechanism (4) is installed in the gas tank assembly (3) output end for sealing box (11) leakage when the communication gas tank assembly (3) and pipeline assembly (2); The sealing valve mechanism (4) includes fixed communication in the gas tank assembly (3) output end of the shell (41), the shell (41) other end and pipeline assembly (2) communication, the shell (41) output end is fixed for blocking the shell (41) and pipeline assembly (2) communication of ceramic baffle (43), the shell (41) is fixed for breaking the ceramic baffle (43) of the crushing mechanism (42) in; The shell (41) is also connected with the secondary gas supplement mechanism (5) for the gas tank assembly (3) after the gas is exhausted continuously to the pipeline assembly (2) inside; The crushing mechanism (42) includes a sealing member (421) fixed in the shell (41), the sealing member (421) is movably connected with the striker (422), one end of the striker (422) extends to the outside of the sealing member (421), the sealing member (421) is provided with a gas storage cavity (424), the sealing member (421) is fixed with an electric arc generator (423), the electrode end of the electric arc generator (423) extends into the gas storage cavity (424); The gas storage cavity (424) stores combustible gas, when the gas pressure gauge (12) monitors the pressure reduction in the sealed box (11), the electric arc generator (423) can be driven to operate to make the gas in the gas storage cavity (424) burn and increase the pressure in the gas storage cavity (424), so as to drive the striker (422) to break the ceramic baffle (43); The secondary gas supplement mechanism (5) includes a vertical pipe (51) fixedly connected with the shell (41), the vertical pipe (51) extends to the bottom of the cabinet (1), the vertical pipe (51) is vertically and equidistantly fixed with a metal porous plate (52), the metal porous plate (52) is fixed with a diaphragm two (53) for blocking the vertical pipe (51), the cabinet (1) bottom is also provided with a heating coil (54), the coil part of the heating coil (54) is sleeved outside the vertical pipe (51), and the metal porous plate (52) and the diaphragm two (53) are in the range of the vertical pipe (51) coil, the vertical pipe (51) is also provided with a water absorption assembly (55) above the heating coil (54); Running the heating coil (54) can make the metal porous plate (52) be heated so that the diaphragm two (53) is melted.

2. The new energy electrical cabinet with gas insulation structure according to claim 1, characterized in that: The pipeline assembly (2) comprises a mixing cavity (22) fixedly installed in the sealed box (11), one side of the mixing cavity (22) is equidistantly and fixedly communicated with a cross pipe (23), the cross pipe (23) is equidistantly provided with air holes (24), the other side of the mixing cavity (22) is fixedly communicated with a connecting pipe (21), one end of the connecting pipe (21) extends to the outside of the sealed box (11) and is communicated with the gas tank assembly (3) through the sealing valve mechanism (4).

3. The new energy electrical cabinet with gas insulation structure according to claim 2, characterized in that: The gas tank assembly (3) comprises tank one (31), tank two (32) and tank three (33) installed at the bottom of the cabinet (1), the output ends of the three are provided with sealing valve mechanisms (4), and the gases stored in the three are nitrogen, helium and argon respectively.

4. The new energy electrical cabinet with gas insulation structure according to claim 1, characterized in that: The ceramic baffle (43) is in the shape of a round cake, which is recessed from the outer ring to the center, and the ceramic baffle (43) is provided with pre-split grooves (431) in an annular array on both sides. 5.The new energy electrical cabinet with a gas insulation structure according to claim 1, characterized in that: The sealing valve mechanism (4) further comprises an exhaust assembly (44) arranged on the sealing element (421); The exhaust assembly (44) comprises a secondary pipeline (441) fixedly communicated with the sealing element (421), a diaphragm one (442) is arranged in the cavity of the secondary pipeline (441), the top of the secondary pipeline (441) extends to the outside of the shell (41) and is fixedly communicated with an exhaust pipe (443) communicated with the outside; The gas storage cavity (424) can be communicated with the secondary pipeline (441) through the sealing element (421). 6.The new energy electrical cabinet with a gas insulation structure according to claim 1, characterized in that: The water absorption assembly (55) comprises silica gel desiccant (551) and activated carbon (552), the silica gel desiccant (551) is located in the vertical pipe (51), and the activated carbon (552) is located above and below the silica gel desiccant (551) respectively.

Images