A sulfur hexafluoride filled electrical equipment leakage treatment device

Abstract

The application discloses a kind of six fluorine sulfur filled electrical equipment leakage management devices, including basic unit, sealing unit and clamping unit, wherein basic unit, including sealing body, connecting piece is connected to the one end of the sealing body.This six fluorine sulfur filled electrical equipment leakage management device, by sealing assembly is clamped between connecting piece and sealing body, by using manual wheel, let first clamping assembly clamp sealing shell and reduce gap, while, liquid guide assembly also carries out liquid guide, and the gap between sealing body and connecting piece is blocked by plugging glue, then, drainage is carried out using drainage device, to reduce the pressure of six fluorine sulfur gas on plugging glue, improve plugging success rate, after solidification, it can be covered with end, around leakage point using drainage device forms a closed space, reduces the pressure of leakage gas, improves the bonding quality of plugging glue, simultaneously, through drainage end, the sealing of closed space is realized, finally, through reinforcing glue, overall sealing is realized, to achieve the purpose of plugging.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment leakage prevention technology, and more particularly to a leakage control device for electrical equipment filled with sulfur hexafluoride. Background Technology

[0002] Sulfur hexafluoride (SF6) gas possesses excellent insulation, arc-extinguishing, and heat dissipation properties, and has been widely used in high-voltage electrical equipment such as circuit breakers, disconnectors, and gas-insulated fully enclosed switchgear in recent years. Maintaining SF6 gas within its rated pressure range ensures the safe and stable operation of SF6-filled electrical equipment. However, due to unavoidable sand holes and poor sealing at the equipment body, flange joints, flange welds, and connecting bolts during manufacturing, installation, and operation, SF6 gas leakage can occur. Continuous leakage will cause the SF6 gas pressure in the electrical equipment to fall below its rated pressure, ultimately leading to equipment alarms, lockouts, or even discharge accidents. Simple manual gas replenishment can only temporarily maintain equipment operation with the defect, increasing the workload of SF6 gas venting and replenishment without resolving the leakage problem.

[0003] Currently, there are two main methods for controlling leaks in sulfur hexafluoride-filled electrical equipment: one is to use various adhesives to seal the leak, and the other is to seal the leak point by adding cable ties, casings, and other devices, followed by secondary sealing with adhesives.

[0004] The disadvantages of the above process are: 1. Since the leakage point is generally very small and the local air pressure is very high, the adhesive cannot maintain the sealing of the leakage point for a long time. Generally, after a few days or even a few hours, a new leakage point will form from the joint surface between the adhesive and the equipment; 2. Some leakage points are not convenient to be sealed by cable ties, shells or other devices due to narrow space. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems existing in the above-mentioned leakage control devices for sulfur hexafluoride-filled electrical equipment, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a leakage control device for sulfur hexafluoride-filled electrical equipment, which aims to quickly seal the leak and prevent subsequent leakage.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a base unit, a sealing unit, and a clamping unit, wherein the base unit includes a sealing body, a connector connected to one end of the sealing body, and a flange for connecting the sealing body and the connector; the sealing unit is disposed between the sealing body and the connector, and includes a sealing assembly installed between the sealing body and the connector, and is provided with a manual wheel, the manual wheel connecting a first clamping assembly to cooperate with the flange, and further includes a fluid guiding assembly disposed in the sealing assembly; and the clamping unit is disposed in the sealing assembly, and includes a drainer, a connecting wheel, a second clamping assembly, and a stop assembly, the drainer being disposed on the sealing assembly, its output end extending into the connection gap between the sealing assembly and the connector, the connecting wheel being disposed at one end of the manual wheel, and its outer surface being connected to the second clamping assembly, the second clamping assembly cooperating with the stop assembly disposed in the sealing assembly.

[0009] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention, the sealing assembly includes a sealing shell, and a toughening member is provided below the sealing shell, the toughening member being in contact with the upper surface of the sealing body.

[0010] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment according to the present invention, the first clamping assembly includes a support rod that cooperates with the manual wheel and extends out of the sealing shell, a pressure member connected to one end of the support rod, a fixing plate disposed at the other end of the support rod, and an extrusion block disposed on the outer surface of the fixing plate.

[0011] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention, the liquid guiding component includes a liquid guiding groove formed in the sealing shell and connected at one end to the connection gap between the sealing component and the connector, and also includes a baffle plate disposed in the sealing body and cooperating with the extrusion block.

[0012] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention, both the connecting wheel and the manual wheel are rotatable in the sealing shell, and the drainer is threadedly fitted with a drain head.

[0013] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment according to the present invention, the second clamping assembly includes a connecting chain, a pull rod, and a locking rod. One end of the connecting chain is wound and fixed to the outer surface of the connecting wheel, and the other end is connected to the pull rod. One end of the pull rod is connected to the locking rod, and the locking rod extends into the slot opened in the sealing shell for locking.

[0014] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention, the second clamping assembly further includes a guide block and a tension spring. The guide block is disposed in the sealing shell and fits against the connecting chain, and the tension spring is disposed in the pull rod and connected to the clamping rod. The clamping rod cooperates with the stop assembly.

[0015] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment according to the present invention, the stop assembly includes a connecting block, a blocking block and an elastic element disposed in the sealing shell, one side of the connecting block is also connected to the elastic element and can rotate, and it is located on one side of the blocking block.

[0016] In a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention, the locking rod is provided with locking plates at equal intervals on one side, and the locking plates cooperate with the connecting block.

[0017] As a preferred embodiment of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention, the liquid guiding groove is filled with sealing adhesive, and the top of the extrusion block cooperates with the inclined surface of the baffle plate, and a one-way guide extending from the top of the sealing shell is provided at the top of the liquid guiding groove.

[0018] The beneficial effects of this invention are as follows: After the sealing component is engaged between the connector and the sealing body, the first clamping component is tightened by using a manual wheel to reduce the gap. At the same time, the liquid guiding component also guides the liquid to block the gap between the sealing body and the connector with the sealing adhesive. Then, the drainage device is used to reduce the pressure of sulfur hexafluoride gas on the sealing adhesive, thereby improving the success rate of sealing. After curing, the end cap can be covered. The drainage device is used to form a sealed space around the leak point, reducing the pressure of the leaking gas and improving the bonding quality of the sealing adhesive. At the same time, the sealing of the sealed space is achieved by the drainage end cap. Finally, the overall seal is achieved by reinforcing adhesive, thus achieving the purpose of sealing the leak. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic side sectional view of the overall structure of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall front sectional view of the leakage control device for sulfur hexafluoride-filled electrical equipment according to the present invention.

[0022] Figure 3 This is a top sectional view of the connection between the sealing shell and the manual wheel of the leakage control device for sulfur hexafluoride-filled electrical equipment according to the present invention.

[0023] Figure 4 This is a top sectional view of the connection chain and connecting wheel of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention.

[0024] Figure 5 This is a schematic diagram of the connection structure between the stop assembly and the second clamping assembly of the leakage control device for sulfur hexafluoride-filled electrical equipment of the present invention. Detailed Implementation

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0029] Example 1

[0030] Reference Figures 1-5 The first embodiment of the present invention provides a leakage control device for electrical equipment filled with sulfur hexafluoride, which includes a base unit 100, a sealing unit 200 and a clamping unit 300.

[0031] The basic unit 100 includes a sealing body 101, a connector 102 connected to one end of the sealing body 101, and a flange 103 for connecting the sealing body 101 and the connector 102. The sealing unit 200 is disposed between the sealing body 101 and the connector 102, and includes a sealing assembly 201. The sealing assembly 201 is installed between the sealing body 101 and the connector 102 and is provided with a manual wheel 202. The manual wheel 202 is connected to a first clamping assembly 203 and cooperates with the flange 103. The sealing assembly 200 also includes a liquid guiding assembly 204 disposed in the sealing assembly 201.

[0032] The sealing body 101 and the connector 102 can be sealed by installing the sealing assembly 201. At this time, by operating the manual wheel 202, the manual wheel 202 cooperates with the first clamping assembly 203, driving the first clamping assembly 203 to use the fixing effect of the flange 103 to drive the sealing body 101 and the sealing assembly 201 to fit more tightly and seal, thereby achieving a sealing and leak-proof function. At the same time, the first clamping assembly 203 cooperates with the liquid guiding assembly 204, driving the liquid guiding assembly 204 to discharge liquid, allowing the liquid to flow to fill the space between the sealing body 101 and the connector 102 and between the sealing assembly 201 and the connector 102, thereby achieving a seal.

[0033] The clamping unit 300 is disposed in the sealing assembly 201. It includes a drainer 301, a connecting wheel 302, a second clamping assembly 303, and a stop assembly 304. The drainer 301 is disposed on the sealing assembly 201, and its output end extends into the connection gap between the sealing assembly 201 and the connector 102. The connecting wheel 302 is disposed at one end of the manual wheel 202, and its outer surface is connected to the second clamping assembly 303. The second clamping assembly 303 cooperates with the stop assembly 304 disposed in the sealing assembly 201.

[0034] During use, the drainer 301 is in the open state when pouring the liquid adhesive, allowing for drainage. The sealant and drainer 301 form a sulfur hexafluoride (SF6) gas flow channel around the leak point. The advantage of drainer 301 is that it reduces the pressure of SF6 gas on the sealant, increasing the success rate of leak sealing. After the sealant has basically cured, drainer 301 is turned off, and a SF6 leak detector is used to thoroughly check the sealant seal. When the leak detector does not alarm around the sealant but alarms at drainer 301, it proves that all the SF6 gas has been drained to drainer 301. A second leak check is then performed. If the SF6 leak detector does not alarm at either the sealant seal or drainer 301, it indicates that the leak sealing was successful.

[0035] The cooperation between the first clamping component 203 and the second clamping component 303 allows the second clamping component 303 to make the sealing components 201 fit more tightly through the stop component 304, thus making the seal more perfect and effectively improving the sealing performance.

[0036] Example 2

[0037] Reference Figures 2-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the sealing assembly 201 includes a sealing shell 201a, and a tough member 201b is disposed below the sealing shell 201a. The tough member 201b is in contact with the upper surface of the sealing body 101.

[0038] Compared to Embodiment 1, the first clamping assembly 203 further includes a support rod 203a that cooperates with the manual wheel 202 and extends into a sealing shell 201a, a pressure member 203b connected to one end of the support rod 203a, a fixing plate 203c disposed at the other end of the support rod 203a, and a pressing block 203d disposed on the outer surface of the fixing plate 203c.

[0039] When the manual wheel 202 rotates, it engages with the support rod 203a, allowing the support rod 203a to move upward. This causes the pressure component 203b on the support rod 203a to press against the flange 103. This pressure, in turn, causes the sealing shell 201a to press against the flexible component 201b. Since the flexible component 201b has a certain degree of toughness and can be made of rubber, it adheres tightly to the sealing body 101 under pressure. Through its own elasticity and toughness, the flexible component 201b can adapt to the outer surface of the sealing body 101, making the lower sealing surface more compact.

[0040] The liquid guiding assembly 204 includes a liquid guiding groove 204a formed in the sealing shell 201a and connected at one end to the connection gap between the sealing assembly 201 and the connector 102, and a baffle plate 204b disposed in the sealing body 101 and cooperating with the extrusion block 203d. The liquid guiding groove 204a is filled with sealing adhesive G, and the top of the extrusion block 203d cooperates with the inclined surface of the baffle plate 204b. A one-way guide member 204c is provided at the top of the liquid guiding groove 204a, extending out of the top of the sealing shell 201a.

[0041] When the support rod 203a moves, it drives the extrusion block 203d to move via the fixing plate 203c. The extrusion block 203d extrudes the inclined surface of the baffle plate 204b, causing the baffle plate 204b to move and slide into one side of the sealing shell 201a, exposing the liquid guiding groove 204a. This extrudes the sealing adhesive G in the liquid guiding groove 204a, pushing the sealing adhesive G into the connection gap between the sealing shell 201a and the connector 102 for filling and sealing. If the sealing adhesive G is insufficient, it can be manually introduced through the one-way inlet 204c. Its own one-way valve prevents leakage and improves the airtightness.

[0042] The remaining structure is the same as that in Example 1.

[0043] Example 3

[0044] Reference Figure 1 , 2 4 and 5 are the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that both the connecting wheel 302 and the manual wheel 202 can rotate in the sealing shell 201a, and the drainer 301 can be threadedly fitted with a drain head 301a.

[0045] Compared to Embodiment 2, the second locking assembly 303 further includes a connecting chain 303a, a pull rod 303c, and a locking rod 303d. One end of the connecting chain 303a is wrapped and fixed to the outer surface of the connecting wheel 302, and the other end is connected to the pull rod 303c. One end of the pull rod 303c is connected to the locking rod 303d, and the locking rod 303d extends into the slot C opened in the sealing shell 201a for locking.

[0046] The second clamping assembly 303 also includes a guide block 303b and a tension spring 303e. The guide block 303b is disposed in the sealing shell 201a and fits against the connecting chain 303a, and the tension spring 303e is disposed in the pull rod 303c and connected to the locking rod 303d. The locking rod 303d cooperates with the stop assembly 304.

[0047] The stop assembly 304 includes a connecting block 304a, a blocking block 304b, and an elastic member 304c disposed in the sealing housing 201a. One side of the connecting block 304a is also connected to the elastic member 304c and can rotate, and it is located on one side of the blocking block 304b.

[0048] The locking rod 303d has locking plates 303d-1 evenly distributed on one side, and the locking plates 303d-1 cooperate with the connecting block 304a.

[0049] When the manual wheel 202 rotates, it also drives the connecting wheel 302 to rotate. At this time, the connecting wheel 302 will coil and pull the connecting chain 303a. With the assistance of the guide block 303b, the connecting chain 303a will pull the pull rod 303c. The pull rod 303c will then pull the locking rod 303d through the elastic element 304c. The locking rod 303d will then lock the slot C. As the locking rod 303d moves back, it will push the connecting block 304a to rotate. However, because the connecting block 304b is provided on the other side of the connecting block 304a, it cannot rotate in the opposite direction. The locking rod 303d will continue to squeeze the slot C, making the two corresponding sealing shells 201a lock even tighter and unable to be released.

[0050] The slot C has the width of two locking rods 303d, so that the locking rods 303d can be directly inserted into the slot C before installation and then aligned to prevent the error of not being able to be inserted.

[0051] The remaining structure is the same as that in Example 2.

[0052] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0053] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sulfur hexafluoride filled electrical equipment leak remediation device, characterized by: include, The base unit (100) includes a sealing body (101), a connector (102) connected to one end of the sealing body (101), and a flange (103) for connecting the sealing body (101) and the connector (102). A sealing unit (200) is disposed between the sealing body (101) and the connector (102), comprising a sealing assembly (201) installed between the sealing body (101) and the connector (102), and equipped with a manual wheel (202), the manual wheel (202) being connected to a first clamping assembly (203) and engaging with the flange (103), and further comprising a liquid guiding assembly (204) disposed in the sealing assembly (201); and, A clamping unit (300) is disposed in the sealing assembly (201), and includes a drainer (301), a connecting wheel (302), a second clamping assembly (303), and a stop assembly (304). The drainer (301) is disposed on the sealing assembly (201), and its output end extends into the connection gap between the sealing assembly (201) and the connector (102). The connecting wheel (302) is disposed at one end of the manual wheel (202), and its outer surface is connected to the second clamping assembly (303). The second clamping assembly (303) cooperates with the stop assembly (304) disposed in the sealing assembly (201). The sealing assembly (201) includes a sealing shell (201a), and a flexible member (201b) is disposed below the sealing shell (201a). The flexible member (201b) is in contact with the upper surface of the sealing body (101). The first clamping assembly (203) includes a support rod (203a) that cooperates with the manual wheel (202) and extends out of the sealing shell (201a), a pressure member (203b) connected to one end of the support rod (203a), a fixing plate (203c) disposed at the other end of the support rod (203a), and a pressing block (203d) disposed on the outer surface of the fixing plate (203c). The liquid guiding assembly (204) includes a liquid guiding groove (204a) formed in the sealing shell (201a) and connected at one end to the connection gap between the sealing assembly (201) and the connector (102), and also includes a baffle plate (204b) that cooperates with the extrusion block (203d).

2. The sulfur hexafluoride filled electrical device leak remediation apparatus of claim 1, wherein: Both the connecting wheel (302) and the manual wheel (202) are able to rotate in the sealing shell (201a), and the drainer (301) can be threaded with a drain head (301a).

3. The sulfur hexafluoride filled electrical device leak remediation apparatus of claim 2, wherein: The second locking assembly (303) includes a connecting chain (303a), a pull rod (303c), and a locking rod (303d). One end of the connecting chain (303a) is wound and fixed to the outer surface of the connecting wheel (302), and the other end is connected to the pull rod (303c). One end of the pull rod (303c) is connected to the locking rod (303d), and the locking rod (303d) extends into the locking groove (C) opened in the sealing shell (201a) for locking.

4. The sulfur hexafluoride filled electrical device leak remediation apparatus of claim 3, wherein: The second locking assembly (303) further includes a guide block (303b) and a tension spring (303e). The guide block (303b) is disposed in the sealing shell (201a) and fits against the connecting chain (303a). The tension spring (303e) is disposed in the pull rod (303c) and connected to the locking rod (303d). The locking rod (303d) cooperates with the stop assembly (304).

5. The sulfur hexafluoride filled electrical device leak remediation apparatus of claim 4, wherein: The stop assembly (304) includes a connecting block (304a), a blocking block (304b), and an elastic element (304c) disposed in the sealing shell (201a). One side of the connecting block (304a) is also connected to the elastic element (304c) and is rotatable, and it is located on one side of the blocking block (304b).

6. The sulfur hexafluoride filled electrical device leak remediation apparatus of claim 5, wherein: The locking rod (303d) has locking plates (303d-1) evenly distributed on one side, and the locking plates (303d-1) cooperate with the connecting block (304a).

7. The apparatus for treating SF6 leaks from SF6 filled electrical equipment according to any one of claims 3 to 6, characterized in that: The liquid guiding groove (204a) is filled with sealing adhesive (G), and the top of the extrusion block (203d) is matched with the inclined surface of the baffle plate (204b). The top of the liquid guiding groove (204a) is provided with a one-way inlet (204c) extending out of the top of the sealing shell (201a).

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