Intelligent multifunctional environment-friendly gas insulated ring main unit

Abstract

The application discloses a kind of intelligent multifunctional environmental protection gas insulation ring network cabinet, it is related to electric power engineering technical field, including gas tank and arc extinguishing mechanism, the arc extinguishing mechanism is arranged in the inside of the gas tank, the arc extinguishing mechanism includes jet head, first pressure pump, sealing nail, extrusion plate and electric telescopic rod, the jet head is arranged in the outside of the first pressure pump, the extrusion plate is installed in the outside of the sealing nail, the electric telescopic rod is installed in the bottom of the extrusion plate, the first pressure pump is used to be sent to jet head after environmental protection gas is pressurized, the electric telescopic rod is used to drive extrusion plate to move upwards, to residual arc secondary impact, improve arc extinguishing effect, thus solve the problem that only rely on environmental protection gas and can not efficiently arc extinguishing work, make up environmental protection gas arc extinguishing effect is weaker than the defect of traditional six fluorinated sulfur, avoid ring network cabinet damage rate increase, and then increase its maintenance and use cost situation.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric power engineering, in particular to an intelligent multifunctional environment-friendly gas insulated ring network cabinet. BACKGROUND

[0002] The ring network cabinet is a high-voltage switch device used in a power distribution network and connected to a power distribution line in a ring mode, mainly composed of circuit breakers, load switches, disconnectors and other elements, and has the functions of control, protection and isolation of power lines, and is suitable for urban power distribution networks, industrial parks and the like, and can realize flexible power supply of multiple loops and rapid fault processing, and has the characteristics of compact structure, small land occupation and high reliability.

[0003] The existing intelligent multifunctional environment-friendly gas insulated ring network cabinet has the following disadvantages:

[0004] At present, the intelligent multifunctional environment-friendly gas insulated ring network cabinet on the market uses environment-friendly gases such as dry air and nitrogen, but due to the properties of dry air and nitrogen, the arc extinguishing effect of the ring network cabinet is insufficient, and the high temperature generated by the arc greatly damages the inside of the ring network cabinet, so relying only on the environment-friendly gas in the gas tank cannot efficiently extinguish the arc, which increases the damage rate of the ring network cabinet and further increases the maintenance and use cost.

[0005] Therefore, the application provides an intelligent multifunctional environment-friendly gas insulated ring network cabinet to solve the above problems. SUMMARY

[0006] The application aims to provide an intelligent multifunctional environment-friendly gas insulated ring network cabinet, when the circuit in the ring network cabinet is disconnected, the external switch is connected to the main bus through the cooperation of the circuit breaker and the three-position isolation closing, because the arc extinguishing ability of the environment-friendly gas used in the ring network cabinet is weaker than that of sulfur hexafluoride, an arc will be generated at the moment of disconnection and exist for a long time, therefore, before the disconnection of the ring network cabinet, the gas pump is started to suck the environment-friendly gas in the environment-friendly gas tank, and the environment-friendly gas is discharged to the first pressure pump through the second explosion-proof gas pipe, the first pressure pump pressurizes the incoming environment-friendly gas, and after the pressurization is completed, the disconnection work is started, the first pressure pump is started at the moment of disconnection to spray the pressurized environment-friendly gas from the jet head through the communication gas pipe and the jet pipe, and the jet rhythm is set to intermittent multiple spraying at the moment, the jet port of the jet head is two groups of opposite positions, and the positions with arcs are formed by clamping, and the linear jet port makes the gas flow on both sides long and narrow, forming a "gas knife", the "gas knives" on both sides are sprayed from both sides of the arc at the same time, the instantaneous energy impact blows off the arc, and the instantaneous energy generated by the collision of the gas flow on both sides rapidly explodes at the arc, and the residual arc is subjected to secondary impact, further improving the arc extinguishing effect.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a kind of intelligent multifunctional environmental protection gas insulated ring main unit, including gas tank and arc extinguishing mechanism, the arc extinguishing mechanism is arranged in the inside of the gas tank;

[0008] The arc extinguishing mechanism includes a jet head, a first pressure pump, a sealing spike, an extrusion plate and an electric telescopic rod, the jet head is arranged on the outside of the first pressure pump, the extrusion plate is arranged on the outside of the sealing spike, and the electric telescopic rod is arranged at the bottom of the extrusion plate, the first pressure pump is used to deliver the environmental protection gas after being pressurized to the jet head, and the electric telescopic rod is used to drive the extrusion plate to move upward, and the extrusion plate moves upward while driving the sealing spike to move synchronously.

[0009] Preferably, the arc extinguishing mechanism further comprises a circuit breaker closing, the circuit breaker closing is arranged in the inside of the gas tank, a three-position isolation closing is arranged on the outside of the circuit breaker closing, a main bus is arranged in the inside of the gas tank, the main bus is located on the outside of the three-position isolation closing, an environmental protection gas tank is arranged on the top of the gas tank, a first explosion-proof gas pipe is communicated with the top of the environmental protection gas tank, another end of the first explosion-proof gas pipe is communicated with a gas pump, a second explosion-proof gas pipe is communicated with another side of the gas pump, a first one-way air valve is communicated with the bottom of the second explosion-proof gas pipe, a first pressure pump is arranged on the bottom of the first one-way air valve, two communication gas pipes are arranged on the outside of the first pressure pump, the communication gas pipes penetrate through the gas tank and are communicated with a connector, a jet pipe is arranged on the output port of the connector, a jet head is communicated with the output port of the jet pipe, and the jet head is located on the outside of the three-position isolation closing.

[0010] Preferably, an overpressure relief valve is arranged on the bottom of the environmental protection gas tank, the bottom of the overpressure relief valve is communicated with the gas tank, a third explosion-proof gas pipe is arranged on the top of the gas pump, and a second one-way air valve is arranged on the other end of the third explosion-proof gas pipe.

[0011] Preferably, a second pressure pump is arranged on the other end of the second one-way air valve, an exhaust box is communicated with the other end of the second pressure pump, a water-absorbing cotton is arranged in the inside of the exhaust box, a plurality of sealing spikes are arranged on the inside of the water-absorbing cotton, an extrusion plate is arranged on the bottom of the plurality of sealing spikes, and the extrusion plate is located on the bottom of the water-absorbing cotton.

[0012] Preferably, a plurality of air vent holes are arranged on the top outside of the exhaust box, the air vent holes correspond to the sealing spikes, the top of the sealing spikes is located on the inside of the air vent holes, the sealing spikes are tightly combined with the air vent holes, and an electric telescopic rod is arranged on the bottom of the extrusion plate.

[0013] Preferably, the other end of the electric telescopic rod is located at the inner bottom of the exhaust box, the extrusion plate, the sealing nail and the water absorbing cotton are sequentially located in the interior of the exhaust box, the bottom of the exhaust box is provided with an electromagnetic valve, the bottom of the electromagnetic valve is provided with a second heat dissipation tank, the interior of the second heat dissipation tank is provided with second filter cotton, and the top of the second filter cotton is provided with a fan.

[0014] Preferably, the bottom of the fan is provided with a mounting frame, the mounting frame is arranged at the bottom of the second heat dissipation tank, the outer side of the second heat dissipation tank is communicated with a connecting pipe, the outer side of the connecting pipe is communicated with a plurality of heat dissipation air warehouses, the outer side of each of the plurality of heat dissipation air warehouses is provided with a heat dissipation fin, and the other end of the connecting pipe is communicated with a first heat dissipation tank.

[0015] Preferably, the top of the first heat dissipation tank is provided with a water storage groove, the bottom of the water storage groove is provided with a water leakage hole, and the outer side of the first heat dissipation tank is provided with a plurality of threaded water channels.

[0016] Preferably, the top end of each of the plurality of threaded water channels corresponds to the water leakage hole, the first heat dissipation tank and the second heat dissipation tank are arranged at the top of the air tank, the position of the second filter cotton is below the connecting pipe, and the inner side of the connecting pipe is provided with first filter cotton.

[0017] Preferably, the bottom inner side of the air tank is provided with a temperature sensor, the outer side of the temperature sensor is provided with a humidity sensor, the humidity sensor is arranged on the inner wall of the air tank, the outer side of the air tank is rotatably connected with a sealing door, the top of the air tank is provided with a pressure relief window, and the air injection opening formed in the air injection head is long and narrow and in a linear shape.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] 1、The application is through the cooperation of the external switch and the three-position isolation closing through the breaker closing of the circuit breaker when the circuit in the ring net cabinet is disconnected, which makes it disconnected with the main bus circuit, because the arc extinguishing ability of the ring net cabinet is weaker than that of sulfur hexafluoride, the arc is generated in the circuit breaking moment and exists for too long time, before the ring net cabinet is disconnected, the gas pump is started to suck the environmental protection gas in the environmental protection gas tank, and the environmental protection gas is discharged to the first pressure pump through the second explosion-proof gas pipe, the first pressure pump pressurizes the environmental protection gas, and after the pressurization is completed, the circuit is broken, the first pressure pump is started in the circuit breaking moment, the pressurized environmental protection gas is sprayed out from the jet head through the communication gas pipe and the jet pipe, the jet rhythm is intermittent multiple times in the moment, the two groups of opposite jet ports of the jet head intercept the arc part, and the linear jet port is cooperated to make the long and narrow "air knife" sprayed out on both sides, the "air knife" on both sides is sprayed out from both sides of the arc at the same time, the arc is blown off through the instantaneous energy impact, and the instantaneous energy generated by the collision of the airflow on both sides is rapidly exploded at the arc, the residual arc is impacted twice, the arc extinguishing effect is improved, the problem that the arc extinguishing work cannot be efficiently performed only by relying on the environmental protection gas is solved, the defect that the arc extinguishing effect of the environmental protection gas is weaker than that of the traditional sulfur hexafluoride is made up, the damage rate of the ring net cabinet is avoided to increase, and then the maintenance and use cost of the ring net cabinet is increased.

[0020] 2、After the equipment is disconnected, the environmental protection gas is additionally sprayed into the gas tank through the jet port, the gas pressure in the gas tank is increased, the overpressure relief valve discharges the gas exceeding the threshold value to the environmental protection gas tank, and meanwhile, the gas backflow is prevented, the gas tank is prevented from being damaged and leaked due to the excessively high gas pressure, the gas tank is communicated with the first heat sink and the second heat sink located at the top of the gas tank, the heat generated in the gas tank makes part of the environmental protection gas warm up, according to the thermal expansion and cold contraction principle, the environmental protection gas that warms up rises to the top of the gas tank and enters the first heat sink and the second heat sink, when it rains, the rainwater in the water storage tank at the top of the first heat sink flows to the outside screw waterway through the water leakage hole, and the high-temperature environmental protection gas in the gas tank is cooled through heat transfer.

[0021] 3、When it is not rainy, the fan is started to accelerate the hot environmental protection gas in the second heat sink to flow to the first heat sink through the connecting pipe, the hot gas fully contacts the heat dissipation gas bin on the connecting pipe, the heat dissipation gas bin has a large contact area with the outside and has heat dissipation fins on the outside, the cooling effect is improved, the gas temperature in the gas tank is maintained, and the subsequent arc extinguishing is avoided to be affected, meanwhile, when the hot environmental protection gas in the second heat sink flows to the first heat sink, the moisture is left on the second filter cotton, when the gas temperature in the gas tank is stable, the electromagnetic valve is opened, the moisture on the filter cotton is vaporized and enters the exhaust box through the second electromagnetic valve, and the moisture is intercepted by the water absorption cotton, the electric telescopic rod in the exhaust box works periodically, the electromagnetic valve is closed when the electric telescopic rod works, the electric telescopic rod drives the extrusion plate to move upwards, the sealing nails extrude the water absorption cotton, and meanwhile, the air vent is communicated, at this moment, the second pressure pump is started to spray gas to the exhaust box, the gas flows out from the air vent through the extrusion plate and the water absorption cotton, and the moisture is taken out, so that the gas humidity standard in the gas tank is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1It is a main view structure perspective view of the intelligent multifunctional environment-friendly gas insulated ring main unit;

[0023] Figure 2 It is a structure split perspective view of the intelligent multifunctional environment-friendly gas insulated ring main unit;

[0024] Figure 3 It is an arc extinguishing mechanism split perspective view of the intelligent multifunctional environment-friendly gas insulated ring main unit;

[0025] Figure 4 It is Figure 3 It is an enlarged view of A in the figure;

[0026] Figure 5 It is a partial structure split perspective view of the arc extinguishing mechanism of the intelligent multifunctional environment-friendly gas insulated ring main unit;

[0027] Figure 6 It is Figure 5 It is an enlarged view of B in the figure;

[0028] Figure 7 It is a front view of the intelligent multifunctional environment-friendly gas insulated ring main unit.

[0029] In the figure: 1, gas tank; 2, arc extinguishing mechanism; 201, circuit breaker closing; 202, main bus; 203, environment-friendly gas tank; 204, first explosion-proof air pipe; 205, air pump; 206, second explosion-proof air pipe; 207, first one-way air valve; 208, first pressure pump; 209, communication air pipe; 210, connecting head; 211, air injection pipe; 212, air injection head; 213, overpressure relief valve; 214, third explosion-proof air pipe; 215, first heat dissipation tank; 216, threaded waterway; 217, water storage tank; 218, water leakage hole; 219, connecting pipe; 220, heat dissipation air chamber; 221, heat dissipation fin; 222, mounting frame; 223, fan; 224, first filter cotton; 225, second heat dissipation tank; 226, second filter cotton; 227, electromagnetic valve; 228, electric telescopic rod; 229, extrusion plate; 230, sealing nail; 231, water absorbing cotton; 232, air release hole; 233, second pressure pump; 234, second one-way air valve; 235, temperature sensor; 236, humidity sensor; 237, three-position isolation closing; 238, exhaust box; 3, pressure relief window; 4, sealing door. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0031] Embodiment 1, according to Figures 1-3 As shown in the figure, a smart multifunctional environmentally friendly gas insulated ring network cabinet includes a gas tank 1 and an arc extinguishing mechanism 2, the arc extinguishing mechanism 2 is arranged on the inner side of the gas tank 1, the arc extinguishing mechanism 2 includes a jet head 212, a first pressure pump 208, a sealing nail 230, an extrusion plate 229 and an electric telescopic rod 228, the jet head 212 is arranged on the outer side of the first pressure pump 208, the extrusion plate 229 is arranged on the outer side of the sealing nail 230, and the electric telescopic rod 228 is arranged at the bottom of the extrusion plate 229, the first pressure pump 208 is used to deliver the pressurized environmentally friendly gas to the jet head 212, the electric telescopic rod 228 is used to drive the extrusion plate 229 to move upward, and the sealing nail 230 moves synchronously while the extrusion plate moves upward, the arc extinguishing mechanism 2 further includes a circuit breaker closing 201, the circuit breaker closing 201 is arranged on the inner side of the gas tank 1, a three-position isolation closing 237 is arranged on the outer side of the circuit breaker closing 201, a main bus 202 is arranged in the gas tank 1, the main bus 202 is located on the outer side of the three-position isolation closing 237, an environmentally friendly gas tank 203 is arranged at the top of the gas tank 1, a first explosion-proof gas pipe 204 is communicated with the top of the environmentally friendly gas tank 203, the other end of the first explosion-proof gas pipe 204 is communicated with a gas pump 205, the other side of the gas pump 205 is communicated with a second explosion-proof gas pipe 206, a first one-way gas valve 207 is arranged at the bottom of the second explosion-proof gas pipe 206, the first pressure pump 208 is arranged at the bottom of the first one-way gas valve 207, two communication gas pipes 209 are arranged on the outer side of the first pressure pump 208, the communication gas pipes 209 penetrate through the gas tank 1 and are communicated with a connecting head 210, a jet pipe 211 is arranged at the output port of the connecting head 210, the jet head 212 is communicated with the output port of the jet pipe 211, and the jet head 212 is located on the outer side of the three-position isolation closing 237.

[0032] The effect achieved by the whole embodiment 1 is that when the circuit in the ring net cabinet is disconnected, the external switch is connected to the three-position isolation switch 237 through the breaker 201, which is disconnected from the main bus 202. The isolation gas used in the ring net cabinet is an environmental protection gas, which has weaker insulation and arc extinguishing ability than sulfur hexafluoride, so an arc will be generated and exist for a long time during the disconnection. Therefore, before the disconnection of the ring net cabinet, the gas pump 205 is started to suck the environmental protection gas in the environmental protection gas tank 203, which is discharged to the first pressurizing pump 208 through the second explosion-proof gas pipe 206. The first pressurizing pump 208 pressurizes the environmental protection gas delivered, and starts to disconnect after the pressurization is completed. The first pressurizing pump 208 is started at the moment of disconnection to spray the pressurized environmental protection gas through the communication gas pipe 209 and the gas jet pipe 211 from the gas jet head 212. The jet rhythm is set to intermittent multiple times at the moment of disconnection. The gas jet head 212 has two groups of opposite positions of the gas jet port, which forms a clamping on the part with the arc. In combination with the linear gas jet port, the long and narrow gas flow is sprayed from both sides to form a "gas knife". The two "gas knives" are sprayed from both sides of the arc at the same time, and the arc is blown off by the instantaneous energy impact. At the same time, the instantaneous energy generated by the two gas flows is rapidly exploded at the arc, and the residual arc is subjected to secondary impact, further improving the arc extinguishing effect.

[0033] Embodiment 2, according to Figures 3-7As shown, the bottom of the environmental protection gas tank 203 is provided with an overpressure relief valve 213, the bottom of the overpressure relief valve 213 is communicated with the gas tank 1, the top of the air pump 205 is provided with a third anti-explosion air pipe 214, the other end of the third anti-explosion air pipe 214 is provided with a second one-way air valve 234, the other end of the second one-way air valve 234 is provided with a second pressure pump 233, the other end of the second pressure pump 233 is communicated with an exhaust box 238, the inside of the exhaust box 238 is provided with a water absorbing cotton 231, the inner side of the water absorbing cotton 231 is provided with a plurality of sealing nails 230, the bottom of the plurality of sealing nails 230 is provided with an extrusion plate 229, the extrusion plate 229 is located at the bottom of the water absorbing cotton 231, the top outer side of the exhaust box 238 is provided with a plurality of air release holes 232, the air release holes 232 correspond to the sealing nails 230, the top of the sealing nails 230 is located inside the air release holes 232, the sealing nails 230 are tightly fitted with the air release holes 232, the bottom of the extrusion plate 229 is provided with an electric telescopic rod 228, the other end of the electric telescopic rod 228 is located at the inner bottom of the exhaust box 238, the extrusion plate 229, the sealing nails 230 and the water absorbing cotton 231 are sequentially located inside the exhaust box 238, the bottom of the exhaust box 238 is provided with a solenoid valve 227, the bottom of the solenoid valve 227 is provided with a second heat dissipation tank 225, the inside of the second heat dissipation tank 225 is provided with a second filter cotton 226, the top of the second filter cotton 226 is provided with a fan 223, the bottom of the fan 223 is provided with a mounting bracket 222, the mounting bracket 222 is provided at the bottom of the second heat dissipation tank 225, the outer side of the second heat dissipation tank 225 is communicated with a connecting pipe 219, the outer side of the connecting pipe 219 is communicated with a plurality of heat dissipation air warehouses 220, the outer side of the plurality of heat dissipation air warehouses 220 is provided with a plurality of heat dissipation fins 221, the other end of the connecting pipe 219 is communicated with a first heat dissipation tank 215, the top of the first heat dissipation tank 215 is provided with a water storage tank 217, the bottom of the water storage tank 217 is provided with a water leakage hole 218, the outer side of the first heat dissipation tank 215 is provided with a plurality of threaded water paths 216, the top ends of the plurality of threaded water paths 216 correspond to the water leakage hole 218, the first heat dissipation tank 215 and the second heat dissipation tank 225 are provided at the top of the gas tank 1, the position of the second filter cotton 226 is below the connecting pipe 219, the inner side of the connecting pipe 219 is provided with a first filter cotton 224, the bottom inner side of the gas tank 1 is provided with a temperature sensor 235, the outer side of the temperature sensor 235 is provided with a humidity sensor 236, the humidity sensor 236 is provided on the inner wall of the gas tank 1, the outer side of the gas tank 1 is rotatably connected with a sealing door 4, the top of the gas tank 1 is provided with a pressure relief window 3, the air jet opening provided on the air jet head 212 is long and narrow in linear shape.

[0034] The effect achieved by the whole embodiment 2 is that: after the circuit is disconnected, the environmental protection gas is additionally sprayed into the gas tank 1, the gas pressure in the gas tank 1 is increased, in order to prevent the gas tank 1 from being damaged and leaked due to the gas pressure being too high, the overpressure relief valve 213 discharges the gas exceeding the threshold to the environmental protection gas tank 203, at the same time, the gas in the environmental protection gas tank 203 is prevented from flowing back, in order to ensure the stability of the temperature and humidity of the environmental protection gas in the gas tank 1, the gas tank 1 is communicated with the first heat sink 215 and the second heat sink 225, and the first heat sink 215 and the second heat sink 225 are located at the top of the gas tank 1, the heat generated by the internal components of the gas tank 1 is transferred to the surrounding environmental protection gas, so that the temperature of part of the environmental protection gas rises, according to the principle of thermal expansion and cold contraction, the part of the environmental protection gas with the rising temperature rises to the top of the gas tank 1 and enters the inside of the first heat sink 215 and the second heat sink 225, when it rains, the water storage groove 217 at the top of the first heat sink 215 flows rainwater to the threaded waterway 216 through the water leakage hole 218, a plurality of threaded waterways 216 are arranged on the outer side of the first heat sink 215, so that the rainwater flowing through the threaded waterways 216 and the high-temperature environmental protection gas in the threaded waterways 216 are in heat transfer, the environmental protection gas in the gas tank 1 is cooled, when it does not rain, the fan 223 is started to accelerate the hot environmental protection gas in the second heat sink 225 to flow to the first heat sink 215 through the connecting pipe 219, the hot environmental protection gas fully contacts the heat dissipation gas warehouse 220 on the connecting pipe 219 when flowing, the heat dissipation gas warehouse 220 with different sizes has a large contact area with the external air and natural wind, and the heat dissipation fins 221 on the outer side of the heat dissipation gas warehouse 220, so that the cooling effect is improved, thereby maintaining the temperature of the environmental protection gas in the gas tank 1, avoiding the influence of the subsequent arc extinguishing due to the high internal temperature, at the same time, when the hot environmental protection gas in the second heat sink 225 flows to the first heat sink 215, it passes through the second filter cotton 226, the humidity carried by the second filter cotton 226 is left on the second filter cotton 226, when the temperature in the gas tank 1 is stable, the electromagnetic valve 227 is in an open state, the humidity on the second filter cotton 226 is slowly vaporized and flows to the exhaust box 238 through the second electromagnetic valve 227, the humidity is intercepted by the water absorption cotton 231, the electric telescopic rod 228 in the exhaust box 238 is arranged in a periodic working state, when working, the electromagnetic valve 227 is closed, the electric telescopic rod 228 drives the extrusion plate 229 to move upward, the sealing nails 230 slide in and extrude the water absorption cotton 231, at the same time, the sealing nails 230 move upward to make the exhaust hole 232 on the exhaust box 238 communicate, when the electric telescopic rod 228 drives the extrusion plate 229 to move, the second pressurizing pump 233 is opened to spray gas into the exhaust box 238, the gas flows out from the exhaust hole 232 through the extrusion plate 229 and the water absorption cotton 231, the instantaneous high-speed airflow carries the humidity on the water absorption cotton 231 out of the exhaust box 238, thereby ensuring the humidity standard of the environmental protection gas in the gas tank 1.

[0035] The working principle of the whole device is: when starting to disconnect the circuit in the ring net cabinet, through the cooperation between the breaker closing and the three-position isolation closing 237 through the external switch, it is disconnected with the main bus 202, so the isolation gas used in the ring net cabinet is environmental protection gas, the environmental protection gas is weaker than sulfur hexafluoride in insulation arc extinguishing ability due to its own nature, so in the moment of disconnection, it causes arc to produce and exist for too long, therefore, before the disconnection of the ring net cabinet, start the gas pump 205 to suck out the environmental protection gas in the environmental protection gas tank 203 and discharge it to the first pressurizing pump 208 through the second explosion-proof gas pipe 206, at this time, the first pressurizing pump 208 pressurizes the environmental protection gas coming from the inside, after the pressurizing work is completed, start the first pressurizing pump 208 to spray the pressurized environmental protection gas through the communication gas pipe 209 and the jet pipe 211 to the jet head 212, and through the setting, the jet rhythm is set to intermittent multiple times, because the jet head 212 is set to two groups of opposite positions, and the position where the arc exists is clamped, and the jet orifice is linear, so that the two sides of the jet orifice spray long and narrow gas flow, forming "air knife", the two sides of the "air knife" spray from both sides of the arc, through the instantaneous energy impact, the arc is blown off, and at the same time, through the collision between the two gas flows, the instantaneous energy is quickly scattered at the arc, realizing secondary impact on the remaining arc, further improving the arc extinguishing effect, after the circuit is disconnected, because the jet orifice just sprays the environmental protection gas into the gas tank 1, at this time, the gas pressure in the gas tank 1 rises, in order to prevent the gas tank 1 from being damaged and leaking due to excessive gas pressure, at this time, the overpressure relief valve 213 discharges the gas exceeding the threshold value to the environmental protection gas tank 203, and at the same time, prevents the gas in the environmental protection gas tank 203 from flowing back, in order to ensure the stability of the temperature and humidity of the environmental protection gas in the gas tank 1, the environmental protection gas in the gas tank 1 is communicated with the first heat sink 215 and the second heat sink 225, and the first heat sink 215 and the second heat sink 225 are located at the top of the gas tank 1, the heat generated by the internal parts of the gas tank 1 is transferred to the surrounding environmental protection gas, so that part of the environmental protection gas rises in temperature, according to the principle of thermal expansion and contraction, the part of the environmental protection gas that rises in temperature rises to the top of the gas tank 1, and then automatically enters the first heat sink 215 and the second heat sink 225, when it rains, the water storage tank 217 at the top of the first heat sink 215 receives the rainwater and flows to the threaded waterway 216 through the water leakage hole 218, and the threaded waterway 216 is provided on the outer side of the first heat sink 215, so that the rainwater flowing in the threaded waterway 216 is in thermal communication with the high-temperature environmental protection gas in the threaded waterway 216, so as to cool the environmental protection gas in the gas tank 1, and when it is not raining, start the fan 223 to accelerate the hot environmental protection gas in the second heat sink 225 to flow to the first heat sink 215 through the connecting pipe 219, and at the same time, the hot environmental protection gas flows, so that the hot environmental protection gas is in full contact with the heat dissipation gas warehouse 220 on the connecting pipe 219,The heat dissipation air chamber 220 of different sizes has a larger contact area with the air and natural wind, and the heat dissipation fins 221 on the outside of the heat dissipation air chamber 220 improve the cooling effect, thereby maintaining the temperature of the environmental protection gas in the air tank 1, avoiding affecting the arc extinguishing effect due to the high internal temperature during subsequent arc extinguishing, and at the same time, the hot environmental protection gas in the second heat dissipation tank 225 will pass through the second filter cotton 226 when flowing to the first heat dissipation tank 215, thereby the moisture in the environmental protection gas flows on the second filter cotton 226, when the temperature in the air tank 1 is stable, the electromagnetic valve 227 is in an open state, the moisture carried on the second filter cotton 226 is slowly vaporized and flows to the exhaust box 238 through the second electromagnetic valve 227, at this time the moisture is intercepted by the water absorption cotton 231, the electric telescopic rod 228 in the exhaust box 238 is set to a periodic working state, when it is opened, the electromagnetic valve 227 is closed, the electric telescopic rod 228 drives the extrusion plate 229 on it to move upward, at this time the sealing nail 230 slides in the water absorption cotton 231 and extrudes it, and at the same time the exhaust hole 232 on the exhaust box 238 is in a communication state due to the upward movement of the sealing nail 230, at the same time the electric telescopic rod 228 drives the extrusion plate 229 to move, the second pressurizing pump 233 is opened to spray air into the exhaust box 238, the airflow is sprayed out of the exhaust hole 232 through the extrusion plate 229 and the water absorption cotton 231, and at the same time the high-speed airflow instantly takes the moisture absorbed on the water absorption cotton 231 out of the exhaust box 238, thereby realizing the guarantee of the humidity standard of the environmental protection gas in the air tank 1.

[0036] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can make modifications to the technical solutions described in the foregoing embodiments, or make equivalent replacements to part of the technical features, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent multifunctional environmentally friendly gas-insulated ring main unit, comprising a gas box (1) and an arc extinguishing mechanism (2), characterized in that: The arc extinguishing mechanism (2) is arranged inside the gas box (1); The arc extinguishing mechanism (2) comprises a jet head (212), a first pressure pump (208), a sealing pin (230), an extrusion plate (229) and an electric telescopic rod (228), wherein the jet head (212) is arranged on the outside of the first pressure pump (208), the extrusion plate (229) is arranged on the outside of the sealing pin (230), and the electric telescopic rod (228) is arranged at the bottom of the extrusion plate (229). The first pressure pump (208) is used to pressurize the environmental protection gas and then deliver it to the jet head (212), and the electric telescopic rod (228) is used to drive the extrusion plate (229) to pressurize the environmental protection gas. The plate (229) moves upward, and the pressure plate moves upward while driving the sealing nail (230) to move synchronously. The arc extinguishing mechanism (2) also includes a circuit breaker closing switch (201), the circuit breaker closing switch (201) is installed on the inner side of the gas box (1), and a three-station isolation closing switch (237) is installed on the outer side of the circuit breaker closing switch (201). A main busbar (202) is installed inside the gas box (1), and the main busbar (202) is located on the outer side of the three-station isolation closing switch (237). An environmental protection gas tank (203) is installed on the top of the gas box (1), and the environmental protection gas tank ( The top of the first explosion-proof air pipe (204) is connected to the air pump (205) at the other end, the other side of the air pump (205) is connected to the second explosion-proof air pipe (206), the bottom of the second explosion-proof air pipe (206) is connected to the first one-way air valve (207), the bottom of the first one-way air valve (207) is provided with a first pressure pump (208), the outside of the first pressure pump (208) is provided with two connecting air pipes (209), the connecting air pipes (209) pass through the air box (1) and are connected to a connector ( 210), the output port of the connector (210) is provided with an air jet pipe (211), the output port of the air jet pipe (211) is connected to an air jet head (212), the air jet head (212) is located outside the three-station isolation switch (237), an overpressure relief valve (213) is provided at the bottom of the environmental protection gas tank (203), the bottom of the overpressure relief valve (213) is connected to the gas box (1), a third explosion-proof gas pipe (214) is provided at the top of the air pump (205), and a second one-way gas valve (234) is provided at the other end of the third explosion-proof gas pipe (214).

2. The intelligent multifunctional environmentally friendly gas-insulated ring main unit according to claim 1, characterized in that: A second pressure pump (233) is installed at the other end of the second one-way air valve (234), and the other end of the second pressure pump (233) is connected to an exhaust box (238). Water-absorbing cotton (231) is installed inside the exhaust box (238), and a plurality of sealing pins (230) are provided on the inner side of the water-absorbing cotton (231). An extrusion plate (229) is installed at the bottom of the plurality of sealing pins (230), and the extrusion plate (229) is located at the bottom of the water-absorbing cotton (231).

3. The intelligent multifunctional environmentally friendly gas-insulated ring main unit according to claim 2, characterized in that: A plurality of air leakage holes (232) are provided on the outer side of the top of the exhaust box (238), and the air leakage holes (232) correspond to the sealing nails (230). The tops of the sealing nails (230) are located on the inner sides of the air leakage holes (232), and the sealing nails (230) are tightly fitted with the air leakage holes (232). An electric telescopic rod (228) is installed at the bottom of the extrusion plate (229).

4. The intelligent multifunctional environmentally friendly gas-insulated ring main unit according to claim 3, characterized in that: The other end of the electric telescopic rod (228) is located at the inner bottom of the exhaust box (238), and the extrusion plate (229), the sealing nail (230), and the absorbent cotton (231) are all located in sequence inside the exhaust box (238). A solenoid valve (227) is installed at the bottom of the exhaust box (238), and a second heat dissipation tank (225) is installed at the bottom of the solenoid valve (227). A second filter cotton (226) is installed inside the second heat dissipation tank (225), and a fan (223) is provided on the top of the second filter cotton (226).

5. The intelligent multifunctional environmentally friendly gas-insulated ring main unit according to claim 4, characterized in that: A mounting frame (222) is installed at the bottom of the fan (223), and the mounting frame (222) is installed at the bottom of the second heat dissipation tank (225). The outer side of the second heat dissipation tank (225) is connected to a connecting pipe (219), and the outer side of the connecting pipe (219) is connected to multiple heat dissipation air bins (220). The outer sides of the multiple heat dissipation air bins (220) are all equipped with heat dissipation fins (221). The other end of the connecting pipe (219) is connected to the first heat dissipation tank (215).

6. The intelligent multifunctional environmentally friendly gas-insulated ring main unit according to claim 5, characterized in that: A water storage tank (217) is installed on the top of the first heat dissipation tank (215), a water leakage hole (218) is provided at the bottom of the water storage tank (217), and a plurality of threaded water channels (216) are provided on the outside of the first heat dissipation tank (215).

7. The intelligent multifunctional environmentally friendly gas-insulated ring main unit according to claim 6, characterized in that: The top ends of the plurality of threaded water channels (216) all correspond to the water leakage holes (218); the first heat dissipation tank (215) and the second heat dissipation tank (225) are both installed on the top of the air box (1); the second filter cotton (226) is located below the connecting pipe (219); and the first filter cotton (224) is installed on the inner side of the connecting pipe (219).

8. The intelligent multifunctional environmentally friendly gas-insulated ring main unit according to claim 7, characterized in that: A temperature sensor (235) is installed on the inner side of the bottom of the air box (1), a humidity sensor (236) is installed on the outer side of the temperature sensor (235), and the humidity sensor (236) is installed on the inner wall of the air box (1). A sealing door (4) is rotatably connected to the outer side of the air box (1), a pressure relief window (3) is provided on the top of the air box (1), and the air injection port opened on the air injection head (212) is in a long and narrow linear shape.

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