CN223242526U - GIS is with self-sealing inflation joint who takes filter - Google Patents
GIS is with self-sealing inflation joint who takes filterInfo
- Publication number
- CN223242526U CN223242526U CN202422714880.0U CN202422714880U CN223242526U CN 223242526 U CN223242526 U CN 223242526U CN 202422714880 U CN202422714880 U CN 202422714880U CN 223242526 U CN223242526 U CN 223242526U
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- filter
- sealing
- self
- gis
- connector
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Abstract
本实用新型涉及气体绝缘金属封闭型开关的自封接头技术领域，尤其涉及一种GIS用带过滤器的自封充气接头。本实用新型的GIS用带过滤器的自封充气接头包括接头体，接头体上设有充气孔，在充气孔的进气口与出气口之间设有单向阀芯，在接头体的出气口处设有用于连接GIS罐体的连接盘，在连接盘的中心处设置有沉孔，沉孔中设置有过滤组件，过滤组件包括罩体、垫圈以及设于罩体与垫圈之间的过滤片，罩体于远离充气孔进口的一端处罩设于过滤片之外，垫圈设在沉孔下方的台阶上；罩体和垫圈配合将过滤片与接头体绝缘隔离。在原有自封接头上加装过滤组件过滤异物，保护了GIS设备的绝缘性能和运行安全，也降低了因电气故障导致的设备损坏和事故风险。
The utility model relates to the technical field of self-sealing joints for gas-insulated metal-enclosed switches, and in particular to a self-sealing air-filled joint with a filter for GIS. The utility model relates to a self-sealing air-filled joint with a filter for GIS, comprising a joint body, an air-filled hole provided on the joint body, a one-way valve core provided between the air inlet and the air outlet of the air-filled hole, a connection plate for connecting to a GIS tank body provided at the air outlet of the joint body, a countersunk hole provided at the center of the connection plate, a filter assembly provided in the countersunk hole, the filter assembly comprising a cover body, a gasket, and a filter sheet provided between the cover body and the gasket, the cover body being provided outside the filter sheet at the end away from the air-filled hole inlet, the gasket provided on the step below the countersunk hole; the cover body and the gasket cooperate to insulate the filter sheet from the joint body. Adding a filter assembly to the original self-sealing joint to filter foreign matter protects the insulation performance and operational safety of the GIS equipment, and also reduces the risk of equipment damage and accidents caused by electrical failures.
Description
Technical Field
The utility model relates to the technical field of self-sealing connectors of gas-insulated metal-enclosed switches, in particular to a self-sealing gas-filled connector with a filter for GIS.
Background
The gas-insulated metal-enclosed switch (Gas Insulated Switchgear, abbreviated as GIS) is widely applied to the power system due to the characteristics of strong environment adaptability, small maintenance workload, compact structure, small occupied area, high reliability and the like. The gas-insulated metal-enclosed switch comprises a bus, a circuit breaker, an isolating switch, a grounding switch, a voltage transformer, a current transformer, a lightning arrester, a cable terminal, a wire inlet and outlet sleeve and the like, and is organically combined together through an optimized design and sealed in a metal shell filled with SF 6 gas.
The gas-insulated metal-enclosed switch is connected with external air charging equipment through a self-sealing joint, the risk that foreign matters enter the switch exists in the air charging process, when the foreign matters exist in the gas-insulated metal-enclosed switch, the foreign matters can interfere with the distribution of an electric field, so that the electric field is distorted, the electric field distortion possibly increases the local electric field intensity, and accordingly the risk of insulation breakdown is increased, the foreign matters in the gas-insulated metal-enclosed switch possibly cause discharge phenomena, and the discharge phenomena possibly generate phenomena of high temperature, electric arcs and the like, so that the equipment is damaged.
The self-sealing joints in the prior art are all self-sealing joints without filtering, so that the joints of the self-sealing joints and the gas-insulated metal-enclosed switch are required to be provided with a filtering device for filtering foreign matters to protect the inside of the gas-insulated metal-enclosed switch from being influenced.
Disclosure of utility model
The utility model aims to provide a self-sealing gas-filled connector with a filter for a GIS, which solves the problem of circuit failure caused by foreign matters entering the inside of a gas-insulated metal-enclosed switch.
In order to solve the problems, the self-sealing inflation connector with the filter for the GIS adopts the following technical scheme:
A self-sealing inflatable connector with a filter for a GIS comprises a connector body, wherein an inflation hole is formed in the connector body, a one-way valve core is arranged between an air inlet and an air outlet of the inflation hole, a connecting disc for connecting a GIS tank body is arranged at the air outlet of the connector body, a counter bore is formed in the center of the connecting disc, a filter assembly is arranged in the counter bore, the filter assembly comprises a cover body, a gasket and a filter sheet arranged between the cover body and the gasket, the cover body covers the filter sheet at one end far away from the inlet of the inflation hole, the gasket is arranged on a step below the counter bore, and the cover body and the gasket cooperate to isolate the filter sheet from the connector body in an insulating manner.
Further, the cover body comprises a sheath and a compression ring arranged at one end of the sheath, and the filter plate is arranged in the sheath.
Further, the sheath is matched with the counter bore in a positioning way through the outer peripheral surface.
Further, the washers are located within respective ends of the jacket.
Further, the filter sheet is a multi-layer metal sintering net filter sheet.
Further, the cover body is a polytetrafluoroethylene cover body.
Further, the gasket is a polytetrafluoroethylene gasket.
Further, a sealing ring used for being in sealing fit with the GIS tank body is arranged on the connecting disc, and the counter bore is positioned in the sealing ring.
Further, an enlarged portion with an enlarged diameter is provided in the inflation hole, and the check valve core is located in the enlarged portion.
Further, a valve closing spring for driving the valve core to block the air charging hole is arranged on the back top of the valve core.
The self-sealing inflation connector with the filter for the GIS has the beneficial effects that the self-sealing inflation connector with the filter for the GIS is created for the improved utility model. According to the scheme, the filter assembly is additionally arranged on the original self-sealing joint to filter foreign matters, the foreign matters are prevented from entering the switch to damage equipment, the joint body is used as a core bearing part of the self-sealing inflatable joint with the filter for the whole GIS, the gas filling hole is designed to enable the GIS tank body to be filled with gas conveniently, the safety and efficiency of inflation are greatly improved, the self-sealing inflatable joint with the filter for the GIS can be easily and firmly connected with the GIS tank body due to the design of the connecting disc, an installation space is provided for the filter assembly due to the existence of the counter bore, the cover body of the filter assembly not only plays a role of protecting the filter disc, but also ensures that the filter disc can stably work in the counter bore, the gasket is arranged to enhance the tightness between the filter assembly and the joint body, the filter disc is the core of the filter assembly, the fine pore structure of the filter disc can effectively intercept and remove impurities and particles in gas filled into, the purity and insulation performance of gas inside the GIS equipment are guaranteed, insulation isolation between the filter disc and the joint body is realized due to the cooperation of the cover body and the gasket, and the electrical fault and the electrical accident caused by the electrical charge or the filter disc and the electrical fault protection performance of the GIS equipment are effectively prevented.
Drawings
FIG. 1 is a schematic view of an embodiment of a self-sealing joint device with a filter according to the present utility model;
fig. 2 is a schematic structural view of the cover 2 in fig. 1;
Fig. 3 is a schematic view of the structure of the gasket 4 in fig. 1.
In the figure, 1, a GIS tank body, 2, a cover body, 3, a filter disc, 4, a gasket, 5, a connector body, 6, a one-way valve core, 7 and a connecting disc.
Detailed Description
The features and capabilities of the present utility model are described in further detail below in connection with the examples.
The self-sealing joint device with the filter is characterized in that a filter screen is additionally arranged on the original self-sealing joint to filter foreign matters, so that the foreign matters are prevented from entering a gas-insulated metal-enclosed switch to damage equipment.
As a basic scheme, the self-sealing inflation connector with the filter for the GIS comprises a connector body 5, as shown in figure 1, the connector body 5 is a main structure of the whole self-sealing inflation connector with the filter for the GIS, an inflation hole is formed in the connector body 5, the inflation hole is a channel for SF 6 gas to enter the GIS tank body 1, a one-way valve core 6 is arranged between an air inlet and an air outlet of the inflation hole, the one-way valve core 6 can ensure that SF 6 gas can only flow in one direction, and gas backflow caused by misoperation or system pressure fluctuation is avoided, so that the internal environment of GIS equipment is protected, and the service life of the equipment is prolonged. The gas outlet of the connector body 5 is provided with a connecting disc 7 for connecting the GIS tank body 1, and the connecting disc 7 firmly fixes the connector body 5 on the GIS tank body 1 through bolts or other connection modes. The center department at connection pad 7 is provided with the counter bore, provides the space for filter module's installation, be provided with filter module in the counter bore, filter module is the key part in the self-sealing inflation joint of GIS with taking the filter, and filter module filters the gas that fills GIS jar body 1, gets rid of impurity and particle wherein, and the cover body 2 cover is established outside filter plate 3, and protection filter plate 3 is prevented external interference, ensures the filter effect, and packing ring 4 then sets up on the step of counter bore below, cooperates with cover body 2 and keeps apart filter plate 3 and joint body 5 insulation.
As a preferred embodiment, the cover 2 is a key protection structure of the filter assembly, as shown in fig. 2, the cover 2 includes a sheath and a compression ring disposed at one end of the sheath, the filter sheet 3 is disposed in the sheath, and the sheath is a hollow cylindrical component, and the main function of the sheath is to accommodate and protect the filter sheet 3 from physical damage or displacement during the inflation process. The compression ring is positioned at one end of the sheath, and the compression ring is ensured to be stable in the working process by compressing the filter disc 3, so that the compression ring cannot be loosened or deformed due to air flow impact.
As a preferred implementation mode, the sheath is matched with the counter bore in a positioning way through the peripheral surface, the design ensures that the filter assembly can be accurately and stably installed in the connector body 5, so that smooth inflation operation and effectiveness of a filtering effect are ensured, and the counter bore is favorable for installing and detaching the filter assembly and replacing or cleaning the filter disc 3.
As a preferred embodiment, the gasket 4 is located within the respective ends of the sheath, and the gasket 4 is configured as shown in fig. 3 to provide sealing and insulation of the filter assembly by closely fitting the gap between the sheath and the connector body 5. At the same time, the gasket 4 also plays a role in supporting the filter 3, ensuring that the filter 3 remains in a stable position within the sheath. The sheath provides mounting space and support for the gasket 4 so that the gasket 4 can fully perform its sealing, insulating and supporting functions.
As a preferred embodiment, the filter 3 is a multi-layer metal sintered mesh filter 3, and the filter 3 is formed by sintering a multi-layer metal mesh at high temperature, and has high accuracy, high strength and good air permeability. The device can effectively remove impurities, particles and micro pollutants in the gas, and ensure the purity and quality of the gas in the gas filling operation. Meanwhile, the multi-layer metal sintering net filter sheet 3 also has good corrosion resistance and high temperature resistance, and can keep stable and reliable filtering performance in a severe working environment.
As a preferred embodiment, the cover 2 is a polytetrafluoroethylene cover 2. Polytetrafluoroethylene (PTFE) cover 2 has excellent corrosion resistance, high temperature resistance, low coefficient of friction and excellent electrical insulation properties, and as cover 2, can prevent invasion of external dust, moisture, chemicals and the like into the interior of a filter assembly or equipment, thereby protecting internal parts from damage, cover 2 can also play an isolating role, prevent harmful substances or gases generated in the interior of the equipment from leaking into the external environment, ensure safety of operators and cleanliness of the environment, PTFE cover 2 has higher mechanical strength, can enhance the overall structural strength of the equipment to a certain extent, improves the durability of the equipment, and due to the characteristics of PTFE materials, cover 2 can stably work under severe conditions such as high temperature, high pressure and the like, and keeps the shape and performance unchanged.
As a preferred embodiment, the gasket 4 is a polytetrafluoroethylene gasket 4, the polytetrafluoroethylene gasket 4 being a sealing element commonly used in filtration assemblies, plumbing connections, valves or other sealing applications. The polytetrafluoroethylene gasket 4 can be tightly attached between two contact surfaces to prevent leakage of gas, liquid or solid particles, so that the tightness and the integrity of a system are ensured, the polytetrafluoroethylene material has a very low friction coefficient, and friction and abrasion between the contact surfaces can be reduced as the gasket 4, and the service life of equipment is prolonged.
As a preferred embodiment, the connecting disc 7 is provided with a sealing ring for sealing and matching with the GIS tank 1, the counter bore is positioned in the sealing ring, the connecting disc 7 provides a stable connecting interface, the GIS tank 1 is connected with other devices or components through a fastener, and the sealing ring fills a tiny gap at the connecting part to form an effective sealing barrier.
As a preferred embodiment, an enlarged portion of enlarged diameter is provided in the inflation hole, and the one-way valve element 6 is located in the enlarged portion. The air charging hole provides a passage for gas to enter the device or the container, the expansion part provides a wide space for the unidirectional valve core 6 and other parts and ensures that the unidirectional valve core 6 can work normally, and the unidirectional valve core 6 controls unidirectional flow of the gas and prevents backflow and leakage of the gas.
As a preferred implementation mode, the back surface of the valve core is provided with a valve closing spring for driving the valve core to block the air charging hole. The valve core is used for controlling the opening and closing of the air charging hole, the valve closing spring provides driving force required by the valve core to return to the closing position, the air charging hole is a channel for the air to enter the equipment or the container, and the air charging valve can quickly respond and accurately control the flow of the air when required by the close fit of the three.
The implementation process of this embodiment is that, first, the connector body 5 is the main body part of the whole connector, and an air charging hole is arranged on the main body part, which is the main channel for gas to enter the GIS tank body 1. A one-way valve core 6 is arranged between the air inlet and the air outlet of the air charging hole, so that the air can flow in one direction only, and the backflow phenomenon of the air is effectively prevented. At the gas outlet of the connector body 5, a connecting disc 7 is arranged for being firmly connected with the GIS tank body 1. A counter bore is specially arranged in the center of the connecting disc 7, and the counter bore not only provides an installation space for the filter assembly, but also ensures that the filter assembly can stably work in the connector body 5. The filter assembly mainly comprises a cover 2, a gasket 4 and a filter sheet 3. The cover body 2 is composed of a sheath and a compression ring, and the sheath is matched with the counter bore in a positioning way through the outer peripheral surface of the sheath, so that the stable installation of the filter assembly is ensured. The filter 3 is arranged in the sheath and the gasket 4 is located within the respective end of the sheath, together with the housing 2, to insulate the filter 3 from the connector body 5. This design not only improves the filtering effect, but also effectively prevents the transfer of current or charge between the connector body 5 and the filter 3. The filter 3 is made of a multi-layer metal sintered net, and the material has excellent filtering performance and durability. The cover body 2 is made of polytetrafluoroethylene material, and has good insulating property and corrosion resistance. The gasket 4 is made of polytetrafluoroethylene material, so that the sealing effect and the insulating property are ensured. And a sealing ring is further arranged on the connecting disc 7 and is in sealing fit with the GIS tank body 1, so that the sealing performance of the connector is further improved. At the same time, an enlarged portion of enlarged diameter is designed in the inflation port, in which the one-way valve cartridge 6 is located. The design makes the valve core more stable in operation and easy to maintain and replace. The back top of case has installed a valve closing spring, and valve closing spring provides necessary thrust when the case is closed, has ensured that the case can closely laminate on the pore wall of inflation hole to effectively prevented the leakage of gas.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The self-sealing inflatable connector with the filter for the GIS comprises a connector body, wherein an inflation hole is formed in the connector body, a one-way valve core is arranged between an air inlet and an air outlet of the inflation hole, a connecting disc for connecting a GIS tank body is arranged at the air outlet of the connector body, the self-sealing inflatable connector is characterized in that a counter bore is formed in the center of the connecting disc, a filter assembly is arranged in the counter bore and comprises a cover body, a gasket and a filter piece arranged between the cover body and the gasket, the cover body is covered outside the filter piece at one end far away from the inlet of the inflation hole, the gasket is arranged on a step below the counter bore, and the cover body and the gasket are matched to isolate the filter piece from the connector body in an insulating manner.
2. The self-sealing inflation connector with a filter for a GIS according to claim 1, wherein the cover body comprises a sheath and a compression ring arranged at one end of the sheath, and the filter sheet is arranged in the sheath.
3. The filtered self-sealing gas-filled connector for GIS according to claim 2, wherein the sheath is positioned in engagement with the counterbore by an outer peripheral surface.
4. A self-sealing gas-filled connector with a filter for GIS according to claim 2 or 3, wherein said gasket is located within a corresponding end of said sheath.
5. A self-sealing gas-filled joint with a filter for GIS according to any one of claims 1-3, wherein the filter sheet is a multi-layer metal sintered mesh filter sheet.
6. A self-sealing inflation connector with a filter for a GIS according to any one of claims 1-3, wherein the cover is a polytetrafluoroethylene cover.
7. A self-sealing gas-filled connector with a filter for GIS according to any one of claims 1-3, wherein the gasket is a polytetrafluoroethylene gasket.
8. A self-sealing inflation connector with a filter for a GIS according to any one of claims 1-3, wherein a sealing ring for sealing fit with a GIS tank body is arranged on the connecting disc, and the counter bore is positioned in the sealing ring.
9. A self-sealing inflation connector with a filter for a GIS according to any one of claims 1-3, wherein an enlarged portion with an enlarged diameter is provided in the inflation hole, and the one-way valve element is located in the enlarged portion.
10. The self-sealing inflation connector with the filter for the GIS of claim 9, wherein the back surface of the valve core is provided with a valve closing spring for driving the valve core to block the inflation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422714880.0U CN223242526U (en) | 2024-11-07 | 2024-11-07 | GIS is with self-sealing inflation joint who takes filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422714880.0U CN223242526U (en) | 2024-11-07 | 2024-11-07 | GIS is with self-sealing inflation joint who takes filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223242526U true CN223242526U (en) | 2025-08-19 |
Family
ID=96726781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422714880.0U Active CN223242526U (en) | 2024-11-07 | 2024-11-07 | GIS is with self-sealing inflation joint who takes filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223242526U (en) |
-
2024
- 2024-11-07 CN CN202422714880.0U patent/CN223242526U/en active Active
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