Repair structure and repair method for damaged pipeline of gas-filling and oil-filling equipment

Abstract

The repairing structure comprises the damaged pipeline, the repairing structure comprises a filling layer, a pressure relief piece, a sealing piece and a sealing layer, the filling layer is arranged at a damaged opening of the damaged pipeline in a filling mode, and the pressure relief piece penetrates through the filling layer and is fixedly connected with the filling layer. One end of the pressure relief piece is communicated with the inside of the damaged pipeline, and the other end of the pressure relief piece is hermetically connected with the sealing piece; the repairing structure comprises the pressure relief part, the pressure relief part can continuously discharge gas or oil in the damaged pipeline of the inflation and oil filling equipment, so that repairing work of the damaged pipeline under the pressure environment is achieved, the repairing efficiency of the damaged pipeline is improved, meanwhile, the continuous working stability of the inflation and oil filling equipment can be guaranteed, and in addition, the repairing structure is simple in structure and convenient to use. The combined structure of the filling layer, the pressure relief piece, the sealing piece and the sealing layer is combined with the repairing method to replace a traditional mode that equipment is directly replaced to avoid repairing, and unnecessary resource waste is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline repair, in particular to a repairing structure and method for a damaged pipeline of an air-oil charging equipment. BACKGROUND

[0002] A substation is a place in a power system where voltage and current are transformed, concentrated and distributed. Many electrical equipment, such as transformers, circuit breakers or transformers, are provided inside the substation. In the running process, the pipeline of the air-oil charging equipment may occasionally be damaged due to various reasons, resulting in pipeline oil or gas leakage. At this time, only emergency repair by maintenance personnel can be carried out to maintain the normal operation of the air-oil charging equipment.

[0003] However, the existing repairing method for the damaged pipeline of the air-oil charging equipment still has some defects, and some practical functions need to be improved. For example, when repairing the damaged pipeline of the traditional air-oil charging equipment, it is often necessary to stop power supply, discharge air and oil, and then continue the repairing work. The whole repairing process is time-consuming and requires high labor cost, which also reduces the continuous stability of the air-oil charging equipment. In addition, when the damaged part of the damaged pipeline of the air-oil charging equipment is large, the equipment is often replaced directly instead of repairing. This method requires high economic cost and also causes resource waste to some extent. SUMMARY

[0004] In order to solve the problems in the above background art, the purpose of the present application is to provide a repairing structure and method for a damaged pipeline of an air-oil charging equipment. The damaged pipeline is repaired by the combined structure of a filling layer, a pressure relief piece, a sealing piece and a sealing layer, and the pressure relief piece allows the damaged pipeline to be continuously relieved during the repairing process, so that the damaged pipeline can be repaired under pressure. This effectively improves the repairing efficiency of the damaged pipeline and reduces the costs required during the repairing process.

[0005] In order to achieve the above purpose, the technical solution adopted by the present application is as follows:

[0006] A repairing structure for a damaged pipeline of an air-oil charging equipment, comprising a damaged pipeline, the repairing structure comprising a filling layer, a pressure relief piece, a sealing piece and a sealing layer. The filling layer is filled in the damaged opening of the damaged pipeline. The pressure relief piece penetrates through the filling layer and is fixedly connected thereto. One end of the pressure relief piece is in communication with the inside of the damaged pipeline, and the other end of the pressure relief piece is sealingly connected with the sealing piece. The sealing layer is fixedly arranged on the outside of the filling layer.

[0007] Further, a middle through hole is formed in the center of the pressure relief member, one end of the middle through hole is connected with the inside of the broken pipeline, and the other end of the middle through hole is connected with the outside.

[0008] Further, an inner thread is arranged in the middle through hole of the pressure relief member, and an outer thread is arranged on the outer edge of the sealing member, and the pressure relief member and the sealing member are connected through the cooperation of the inner thread and the outer thread.

[0009] Further, a cross recess is formed on one side of the sealing member, and the cross recess is matched with a screwdriver arranged outside.

[0010] Further, the filling layer is made of a high polymer sealing material, and the high polymer sealing material is made of modified epoxy resin, high magnetic metal powder and curing agent in a proportion.

[0011] Further, the sealing layer is electric power sealant, and the thickness of the electric power sealant is 5 mm.

[0012] A repairing method for a broken pipeline of a gas and oil filling device, comprising the following steps:

[0013] Step 1): Preparing a filling layer: modified epoxy resin and high magnetic metal powder are prepared in a proportion of 5:1, and a curing agent is added to form a filling layer made of a high polymer sealing material, and the high polymer sealing material is cured, and the surface of the high polymer sealing material is evenly heated by using a hot air gun according to actual conditions to shorten the curing time;

[0014] Step 2): erecting a pressure relief member: the pressure relief member is horizontally fixed and placed in the center of the broken opening of the broken pipeline by using an auxiliary clamp arranged outside;

[0015] Step 3): erecting a collecting device: a gas collecting tank or an oil collecting tank is arranged outside and is connected with the pressure relief member, so as to collect and recycle the gas or oil discharged from the pressure relief member;

[0016] Step 4): filling the broken opening of the pipeline: the high polymer sealing material is filled from the bottom of the broken opening of the broken pipeline by using a flat trowel, and high-strength two-component epoxy resin adhesive is applied on the bottom and the side of the pressure relief member, so that the high polymer sealing material is stably bonded, and then the high polymer sealing material is continuously filled in the broken opening of the pipeline until it is filled, so that the pressure relief member is horizontally fixed and bonded to the high polymer sealing material;

[0017] Step 5): disassembling operation: the auxiliary clamp is disassembled to release the connection relationship with the pressure relief member, and the connection relationship between the gas collecting tank or the oil collecting tank arranged outside and the pressure relief member is released.

[0018] Step 6): Set the seal: the seal is sealed with the pressure relief member screw;

[0019] Step 7): Outside the power sealant seal: the power sealant is applied to the outside of the polymer sealant;

[0020] Step 8): Leak test: evenly apply foam water to the outside of the power sealant and the outside of the pressure relief member, and observe whether bubbles or oil seepage appear with the naked eye.

[0021] The beneficial effects of the present application are:

[0022] (1) The repair structure of the present application comprises a filling layer, a pressure relief member, a seal, and a sealing layer. The filling layer is arranged in the damaged pipe. The pressure relief member is arranged through the filling layer and is fixedly connected with the filling layer. When the filling layer is used to repair the damaged pipe, the pressure relief member can continuously discharge the gas or oil in the damaged pipe, so that the damaged pipe can be continuously depressurized during the repair process. Thus, the repair work of the damaged pipe in the pressurized environment is realized. When the filling layer fills the damaged pipe, the seal is connected to one end of the pressure relief member to complete the repair work. The repair process of the damaged pipe is effectively simplified, and the time cost and labor cost required during the repair process are reduced. At the same time, the working stability of the inflation and oil filling equipment is maintained. In addition, the combination of the filling layer, the pressure relief member, the seal, and the sealing layer is used to replace the traditional direct replacement equipment to avoid repair, which can save economic cost to a certain extent, avoid unnecessary resource waste, and meet the principles of green, environmental protection, and energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic diagram of the repair structure of the damaged pipe of the inflation and oil filling equipment of the present application;

[0024] Figure 2 It is a front view schematic diagram of the repair structure of the damaged pipe of the inflation and oil filling equipment of the present application;

[0025] Figure 3 It is a three-dimensional structure schematic diagram of the pressure relief member and the seal in the present application;

[0026] Figure 4 It is a three-dimensional structure schematic diagram of the pressure relief member and the seal in the present application;

[0027] Figure 5 It is a flowchart schematic diagram of the repair method of the damaged pipe of the inflation and oil filling equipment of the present application.

[0028] In the figure, 1 is a damaged pipeline, 2 is a filling layer, 3 is a pressure relief piece, 301 is a middle through hole, 3011 is an internal thread, 4 is a sealing piece, 401 is an external thread, 402 is a cross recess, and 5 is a sealing layer. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0030] As shown in the accompanying drawings, Figures 1-4 In the embodiments of the present application, a repairing structure for a damaged pipeline of an inflation oil filling device is provided, which comprises a damaged pipeline 1. The repairing structure comprises a filling layer 2, a pressure relief piece 3, a sealing piece 4, and a sealing layer 5. The filling layer 2 is arranged to fill a damaged opening of the damaged pipeline 1. The pressure relief piece 3 is arranged to pass through the filling layer 2 and fixedly connected with the filling layer 2. One end of the pressure relief piece 3 is connected with the inside of the damaged pipeline 1, and the other end of the pressure relief piece 3 is sealingly connected with the sealing piece 4. The sealing layer 5 is fixedly arranged on the outside of the filling layer 2.

[0031] Specifically, the pressure relief piece 3 can be fixedly bonded with the filling layer 2 by using high-strength two-component epoxy resin glue.

[0032] Specifically, the pressure relief piece 3 can be arranged as a cylindrical nut, and the pressure relief piece 3 is arranged at the center position of the damaged opening of the damaged pipeline 1.

[0033] The middle through hole 301 is arranged at the center position of the pressure relief piece 3. One end of the middle through hole 301 is connected with the inside of the damaged pipeline 1, and the other end of the middle through hole 301 is connected with the outside.

[0034] Specifically, the gas or oil in the damaged pipeline 1 is discharged to the outside through the middle through hole 301, so as to realize the pressure relief effect of the damaged pipeline 1.

[0035] The internal thread 3011 is arranged in the middle through hole 301 of the pressure relief piece 3, and the external thread 401 is arranged on the outer edge of the sealing piece 4. The pressure relief piece 3 and the sealing piece 4 are screwingly connected through the cooperation of the internal thread 3011 and the external thread 401.

[0036] The cross recess 402 is arranged on one side of the sealing piece 4, and the cross recess 402 is matched with a screwdriver arranged outside.

[0037] Specifically, the staff can insert a screwdriver externally set into the cross recess 402 and twist the sealing element 4, so that the sealing element 4 seals the end abutting the pressure relief element 3, thereby isolating the pressure relief element 3 from the external environment.

[0038] The filling layer 2 of the present application is composed of a high polymer sealing material, which is composed of modified epoxy resin, high magnetic metal powder and curing agent in proportion.

[0039] Specifically, the filling layer 2 has high adhesion, high pressure resistance, corrosion resistance and air tightness, so as to block the gas or oil in the damaged pipeline 1 inside it.

[0040] The sealing layer 5 of the present application is provided as a power sealant, and the thickness of the power sealant is 5 mm.

[0041] Specifically, the power sealant has the advantages of aging resistance and good elasticity, and is arranged on the outside of the filling layer 2, which can protect the filling layer 2 composed of a high polymer sealing material from the influence of ultraviolet rays, ozone and the like, thereby effectively avoiding the cracking of the filling layer 2 and affecting the repair effect, and at the same time, the power sealant can provide an additional protection barrier for the leakage position after curing, thereby enhancing the repair effect.

[0042] As shown in the accompanying drawings, Figure 5 The present application provides a repair method for a damaged pipeline of a gas / oil filling device, which comprises the following steps:

[0043] Step 1): Preparing the filling layer 2: preparing modified epoxy resin and high magnetic metal powder in a proportion of 5:1 and adding a curing agent to form a filling layer composed of a high polymer sealing material, and then curing the high polymer sealing material, and using a hot air gun to evenly heat the surface of the high polymer sealing material according to the actual situation to shorten the curing time;

[0044] Step 2): erecting the pressure relief element 3: using an externally provided auxiliary clamp to horizontally fix the pressure relief element 3 at the center of the damaged opening of the damaged pipeline 1;

[0045] Step 3): erecting the collecting device: externally setting a gas collecting tank or an oil collecting tank and making it communicate with the pressure relief element 3, so as to collect and recycle the gas or oil discharged from the pressure relief element 3;

[0046] Step 4): filling the damaged opening of the pipeline: using a flat trowel to start filling the high polymer sealing material from the bottom inside of the damaged opening of the damaged pipeline 1 upwards, and applying high-strength two-component epoxy resin glue to the bottom and side of the pressure relief element 3 to make it stably bonded with the high polymer sealing material, and then continuing to fill the damaged opening of the damaged pipeline 1 with the high polymer sealing material until it is filled, so that the pressure relief element 3 is horizontally fixed and bonded to the high polymer sealing material;

[0047] Step 5): disassembly operation: disassemble the auxiliary clamp to release the connection relationship with the pressure relief part 3, and then release the connection relationship between the externally arranged gas collecting tank or oil collecting tank and the pressure relief part 3;

[0048] Step 6): setting the sealing part 4: sealingly connecting the sealing part 4 with the pressure relief part 3;

[0049] Step 7): externally applying the power sealing glue: applying the power sealing glue on the outer side of the polymer sealing material;

[0050] Step 8): leak detection test: applying the foamy water on the outer side of the power sealing glue and the outer side of the pressure relief part 3, and observing whether bubbles or oil body leaks out with naked eyes.

[0051] Specifically, in step 1), the initial curing time of the polymer sealing material is 1.5 hours, the complete curing time is 2 hours, and the adhesive strength obtained by the third-party test result is 6.98-22Mpa.

[0052] Specifically, in step 2), the auxiliary clamp is a tweezers or other auxiliary tool with a fixed clamping function.

[0053] Specifically, in step 8), the foamy water is made of foamy abundant dishwashing liquid mixed with water.

[0054] The steps of the repairing method in the application are all implemented under the condition that the staff has taken insulation measures, and the damaged pipeline 1 is repaired by the combined structure of the filling layer 2, the pressure relief part 3, the sealing part 4 and the sealing layer 5 and the repairing method, so as to replace the traditional direct replacement equipment to avoid the repairing mode, which can maintain the working stability of the inflation and oil filling equipment, so that the inflation and oil filling equipment can be repaired under pressure, has the advantages of improving the power supply reliability of the equipment, on the other hand, can reduce the various costs required when repairing the inflation and oil filling equipment, effectively avoids unnecessary resource waste, and also meets the principles of green, environmental protection and energy saving.

[0055] The above has made a detailed description of the application, and the above description is only a preferred embodiment of the application, which cannot limit the scope of the application, that is, any equivalent changes and modifications made within the scope of the application should still fall within the scope of the application.

Claims

1. A repair structure for damaged pipes in an air-filled or oil-filled equipment, comprising the damaged pipe, characterized in that, The repair structure includes a filling layer, a pressure relief component, a sealing component, and a sealing layer. The filling layer is filled and disposed at the damaged opening of the damaged pipe. The pressure relief component passes through the filling layer and is fixedly connected to it. One end of the pressure relief component is connected to the interior of the damaged pipe, and the other end of the pressure relief component is sealed and connected to the sealing component. The sealing layer is fixedly disposed on the outside of the filling layer.

2. The repair structure for damaged pipelines in an air-filled or oil-filled equipment according to claim 1, characterized in that, The pressure relief component has a central through hole at its center. One end of the central through hole is connected to the interior of the damaged pipe, and the other end of the central through hole is connected to the outside.

3. The repair structure for damaged pipelines in an air-filled or oil-filled equipment according to claim 1, characterized in that, The pressure relief component has an internal thread inside the central through hole, and the sealing component has an external thread on its outer edge. The pressure relief component and the sealing component are connected by the mating of the internal thread and the external thread.

4. The repair structure for damaged pipelines in an air-filled or oil-filled equipment according to claim 1, characterized in that, The seal has a cross-shaped groove on one side, which is compatible with a screwdriver located on the outside.

5. A repair structure for damaged pipelines in an air-filled or oil-filled equipment according to claim 1, characterized in that, The filling layer is composed of a polymeric sealing material, which is made of modified epoxy resin, high magnetic metal powder and curing agent in a certain proportion.

6. A repair structure for damaged pipelines in an air-filled or oil-filled equipment according to claim 1, characterized in that, The sealing layer is made of electrical sealant, and the thickness of the electrical sealant is 5mm.

7. A method for repairing damaged pipes in an air-filled or oil-filled equipment, characterized in that, Includes the following steps: Step 1): Pre-filling layer: Mix modified epoxy resin and high magnetic metal powder in a ratio of 5:1 and add curing agent to form a filling layer composed of polymer sealing material. After the polymer sealing material has cured, use a hot air gun to evenly heat the surface of the polymer sealing material to shorten its curing time, depending on the actual situation. Step 2): Install the pressure relief device: Use external auxiliary clamps to horizontally fix the pressure relief device at the center of the rupture opening in the damaged pipe; Step 3): Set up a collection device: Install a gas collection tank or oil collection tank on the outside and connect it to the pressure relief component to collect and recover the gas or oil discharged from the pressure relief component. Step 4): Filling the pipe rupture: Using a flat trowel, apply polymer sealing material from the bottom inside of the rupture opening in the damaged pipe, starting from the bottom and working upwards. Apply high-strength two-component epoxy resin to the bottom and sides of the pressure relief component to form a stable bond with the polymer sealing material. Then continue to use polymer sealing material to fill the rupture opening in the damaged pipe until it is completely filled, so that the pressure relief component is horizontally fixed and bonded to the polymer sealing material. Step 5): Disassembly: Disassemble the auxiliary clamps to disconnect them from the pressure relief components, and then disconnect the externally installed air or oil collection tanks from the pressure relief components. Step 6): Install the seal: Connect the seal to the sealing screw of the pressure relief component; Step 7): Apply electrical sealant to the outside of the polymer sealing material. Step 8): Leak test: Apply foam water to the outside of the electrical sealant and the outside of the pressure relief component, and visually observe whether bubbles emerge or oil seeps out.

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