Pipe explosion plugging device for thermal power boiler

Through the combination of polyimide sealing and extension sealing cylinder, the problem of sealing after the burst pipe of thermal power boiler is solved, efficient and reliable pipeline sealing is achieved, reducing the risk of re-leakage and ensuring the stable operation of the boiler.

CN120274147APending Publication Date: 2025-07-08HUANENG WEIHAI POWER GENERATION CO LTD
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Patent Information

Application Number
CN202510535685.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2025-07-08

AI Technical Summary

Technical Problem

After the pipe burst of the thermal electric boiler, conventional sealing methods are difficult to effectively block high-temperature gas leakage, resulting in a high risk of re-leaking, affecting the stable operation and safety of the boiler, and it is difficult to maintain.

Method used

Polyimide sealing and extending the sphere are combined with the expansion sealing cylinder. The compressed air is provided through the air compressor to expand and fill the rupture pipe, and the hole sealing support structure provides additional support to ensure the sealing effect.

Benefits of technology

It significantly improves the sealing effect, reduces the probability of secondary leakage, ensures the reliability and stability of pipeline sealing, and reduces maintenance costs and downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a thermal power boiler pipe burst plugging device, which comprises a device host, an operation panel and an expansion plugging cylinder, and has the beneficial effects that the device can enable a polyimide plugging extension ball to quickly and effectively perform plugging operation on the deep part of a pipeline crevasse after blasting through a hole flexible filling structure, so that the plugging operation is more convenient, and the plugging efficiency is improved. For a part of large crevasses, after the polyimide plugging extension ball completes preliminary plugging, a second support reinforcement can be additionally arranged for the polyimide plugging extension ball by means of the hole plugging support structure on the expansion plugging cylinder, so that the plugging effect of the polyimide plugging extension ball is remarkably improved, and the service life of the polyimide plugging extension ball is prolonged. And the probability of secondary leakage after plugging is greatly reduced, so that the reliability and the stability of pipeline plugging are ensured.
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Description

Technical Field

[0001] The present invention relates to the technical field of boiler auxiliary equipment, and particularly to a tube burst plugging device for thermal power boilers. Background Art

[0002] As the core equipment of a thermal power plant, a thermal power boiler generates heat energy by burning fuels such as coal, natural gas, or heavy oil, heats water to evaporate it into steam, and drives a steam turbine to generate electricity. However, the problem of tube burst plugging has always been a major issue in the operation of thermal power boilers. Tube bursts not only cause steam leakage, reducing the boiler efficiency and power generation capacity, but may also lead to safety accidents. If the plugging is not timely or thorough, it will further exacerbate pipeline damage, threatening the stable operation of the boiler, while increasing maintenance costs and downtime, seriously affecting the economic benefits of the power plant and the stability of power supply. Particularly troublesome is that the open gap formed after the pipeline bursts makes it difficult for conventional encircling plugging or filling methods to effectively plug high-temperature gases. Once leakage occurs again, the boiler will face great danger, and on-site restoration and repair work will become extremely difficult. Therefore, it is necessary to strengthen the monitoring and maintenance of thermal power boilers, promptly detect and properly handle safety hazards such as tube burst plugging. In response to the above problems, there may already be technical means to solve them in the prior art, but this case wants to provide an alternative or replacement technical solution. Summary of the Invention

[0003] The technical solution of the present invention to achieve the above object is: a tube burst plugging device for thermal power boilers, including: a device main body, an operation panel, and an extended plugging cylinder. The operation panel is installed on the device main body. An orifice plugging support structure is installed on the extended plugging cylinder. An orifice flexible filling structure is installed on the device main body. The orifice flexible filling structure includes: an integrated air compressor, a trachea placement block, an extended filling trachea, a spherical connection valve, a polyimide plugging extended sphere, a positioning holding rod, and a connection extended sleeve. The integrated air compressor is installed on the device main body. The trachea placement block is installed on the integrated air compressor. The extended filling trachea is connected to the trachea placement block, and the extended filling trachea is connected to the spherical connection valve. The spherical connection valve is installed on the polyimide plugging extended sphere, and the spherical connection valve is connected to the positioning holding rod. The connection extended sleeve is installed on the positioning holding rod, and a holding plugging assembly is installed on the connection extended sleeve. It should be noted that in the above, the polyimide plugging and extending sphere is inserted deep into the rupture of the pipeline by holding the plugging component, and then the device host is operated through the operation panel, thereby driving the integrated air compressor to prepare compressed air. The compressed air flows into the sphere connection valve through the extended air charging pipe, and finally fills and expands the polyimide plugging and extending sphere, thereby fully filling the inside of the ruptured pipeline. The waterproof protection layer and the protective insulation layer provided on the device host can enable the working environment where the device host is located to be fearless of the wet and waterlogged ground environment, and prevent situations such as short circuits and electric leakage. The extended power cord provided on the device host can enable this device to move freely within a certain range without interfering with normal operation.

[0004] Preferably, the holding and plugging component includes: a combined screw, an L-shaped holding rod, a holding grip, and a supporting cone. The combined screw is installed in the connection and extension sleeve, and the combined screw is screwed and inserted into the L-shaped holding rod. The holding grip is installed on the L-shaped holding rod, and the L-shaped holding rod is inserted into the connection and extension sleeve. It should be noted that in the above, the L-shaped holding rod connected to the holding grip is screwed into the connection and extension sleeve on the positioning holding rod, and the combined screw in the connection and extension sleeve is screwed and combined into the L-shaped holding rod, so that the connection and extension sleeve and the L-shaped holding rod form an integral body, so that the worker can hold the L-shaped holding rod, the connection and extension sleeve, and the positioning holding rod through the holding grip, and then the polyimide plugging and extending sphere can be extended deep into the pipeline groove, and then fully expanded. The rubber anti-slip pad provided on the holding grip can enable the operator to obtain a better holding feel and holding grip, so that the polyimide plugging and extending sphere can be more conveniently extended deep into the crack.

[0005] Preferably, the hole plugging and supporting structure includes: a pair of barrel holding handles, a telescopic air rod, a pushing cone block, and several barrel internal displacement plates. A pair of the barrel holding handles are respectively installed on the extension and plugging barrel. The telescopic air rod is installed in the extension and plugging barrel. The pushing cone block is installed in the extension and plugging barrel and is connected to the telescopic air rod. Several of the barrel internal displacement plates are respectively installed in the extension and plugging barrel. The supporting cone is installed on the extension and plugging barrel. Several push position locking and positioning components are respectively arranged on several of the barrel internal displacement plates. It should be noted that, in the above, for some breaches with larger openings, it is difficult to complete the sealing of the breach by relying solely on the polyimide sealing extension sphere to seal the breach. Therefore, after the polyimide sealing extension sphere completes the sealing, the L-shaped holding rod and the connecting expansion sleeve are twisted and separated, and then the expansion sealing tube is lifted through a pair of holding handles on the tube, and the supporting cone is inserted into the opening to drive the telescopic gas rod in the expansion sealing tube to extend, so that the push cone block is pushed in the expansion sealing tube, thereby pushing multiple push-stop positioning components and holding the tube wall tightly. At this time, the supporting cone can generate support force for the polyimide sealing extension sphere to prevent sealing failure.

[0006] Preferably, the push-position locking and positioning assembly comprises: a plurality of reset auxiliary springs, a telescopic support push rod and an inner wall fitting push block; A plurality of the reset auxiliary springs are respectively installed in the expansion and blocking cylinder, and a plurality of the reset auxiliary springs are respectively connected to the displacement plate in the cylinder, the telescopic support push rod is movably inserted in the expansion and blocking cylinder, and the telescopic support push rod is fixedly inserted in the displacement plate in the cylinder, and the inner wall fitting push block is installed on the telescopic support push rod; It should be noted that, in the above, the pushing cone block pushes the multiple telescopic support push rods, thereby pushing and compressing the multiple reset auxiliary springs, and then making the multiple telescopic support push rods extend outward, so that the multiple inner wall fitting push blocks will press against the inner wall of the pipe. The fitting reinforcement plastic pads provided on the inner wall fitting push blocks can make the multiple inner wall fitting push blocks fit tightly with the inner wall of the pipe, thereby making the blocked pipe safer.

[0007] Preferably, a fitting and reinforcing plastic pad is provided on the inner wall fitting push block; Preferably, a rubber anti-slip sleeve is provided on the holding handle of the tube; Preferably, a rubber anti-slip pad is provided on the holding handle; Preferably, a waterproof protective layer is provided on the main unit of the device; Preferably, the device host is provided with an extended power cord; Preferably, a protective insulating layer is provided on the device host.

[0008] A tube burst plugging device for thermal power boilers made by using the technical solution of the present invention, compared with the prior art: through the flexible filling structure of the hole, the polyimide plugging and extending sphere of the device can quickly and effectively plug the deep part of the pipe break after blasting. For some larger breaks, after the polyimide plugging and extending sphere completes the preliminary plugging, the hole plugging support structure on the extended plugging cylinder can be used to add a second support and reinforcement for the polyimide plugging and extending sphere. In this way, not only the plugging effect of the polyimide plugging and extending sphere is significantly improved, but also the probability of secondary leakage after plugging is greatly reduced, thus ensuring the reliability and stability of the pipe plugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view structural schematic diagram of a tube burst plugging device for thermal power boilers described in the present invention.

[0010] Figure 2 It is a side view structural schematic diagram of a tube burst plugging device for thermal power boilers described in the present invention.

[0011] Figure 3 It is a structural schematic diagram of the connecting and extending sleeve of a tube burst plugging device for thermal power boilers described in the present invention.

[0012] Figure 4 It is a structural schematic diagram of the hole plugging support structure of a tube burst plugging device for thermal power boilers described in the present invention.

[0013] Figure 5 is Figure 4 a partial enlarged schematic diagram of "A" in

[0014] In the figure: 1, device main body; 2, operation panel; 3, extended plugging cylinder; 4, integrated air compressor; 5, air pipe placement block; 6, extended inflation pipe; 7, sphere connecting air valve; 8, polyimide plugging and extending sphere; 9, positioning holding rod; 10, connecting and extending sleeve; 11, combined screw; 12, L-shaped holding rod; 13, holding grip; 14, holding handle on the cylinder; 15, telescopic air rod; 16, pushing cone block; 17, displacement plate inside the cylinder; 18, reset auxiliary spring; 19, telescopic support push rod; 20, inner wall fitting push block; 21, supporting cone. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] For those skilled in the art, all the electrical components in this case are connected to their adapted power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working sequence among the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of electrical control will be made.

[0016] Embodiment The present invention will be specifically described below with reference to the accompanying drawings. As Figures 1 - 5 shown, a leak plugging device for a burst pipe of a thermal power boiler includes: a device main body 1, an operation panel 2, and an extended plugging cylinder 3. The operation panel 2 is installed on the device main body 1. A hole plugging support structure is installed on the extended plugging cylinder 3. A hole flexible filling structure is installed on the device main body 1. The hole flexible filling structure includes: an integrated air compressor 4, a trachea placement block 5, an extended filling trachea 6, a spherical connection valve 7, a polyimide plugging extended sphere 8, a positioning holding rod 9, and a connection extension sleeve 10. The integrated air compressor 4 is installed on the device main body 1. The trachea placement block 5 is installed on the integrated air compressor 4. The extended filling trachea 6 is connected to the trachea placement block 5, and the extended filling trachea 6 is connected to the spherical connection valve 7. The spherical connection valve 7 is installed on the polyimide plugging extended sphere 8, and the spherical connection valve 7 is connected to the positioning holding rod 9. The connection extension sleeve 10 is installed on the positioning holding rod 9. A holding and plugging component is installed on the connection extension sleeve 10. The holding and plugging component includes: a combined screw 11, an L-shaped holding rod 12, a holding grip 13, and a supporting cone 21. The combined screw 11 is installed in the connection extension sleeve 10, and the combined screw 11 is screwed and inserted into the L-shaped holding rod 12. The holding grip 13 is installed on the L-shaped holding rod 12. The L-shaped holding rod 12 is inserted into the connection extension sleeve 10. The hole plugging support structure includes: a pair of barrel holding handles 14, a telescopic air rod 15, a pushing cone block 16, and several barrel inner displacement plates 17. A pair of the barrel holding handles 14 are respectively installed on the extended plugging cylinder 3. The telescopic air rod 15 is installed in the extended plugging cylinder 3. The pushing cone block 16 is installed in the extended plugging cylinder 3, and the pushing cone block 16 is connected to the telescopic air rod 15. Several barrel inner displacement plates 17 are respectively installed in the extended plugging cylinder 3. The supporting cone 21 is installed on the extended plugging cylinder 3. Several pushing and stopping positioning components are respectively arranged on several barrel inner displacement plates 17. The pushing and stopping positioning component includes: several reset auxiliary springs 18, telescopic support push rods 19, and inner wall fitting push blocks 20. Several reset auxiliary springs 18 are respectively installed in the extended plugging cylinder 3, and several reset auxiliary springs 18 are respectively connected to the barrel inner displacement plates 17. The telescopic support push rod 19 is movably inserted into the extended plugging cylinder 3, and the telescopic support push rod 19 is fixedly inserted into the barrel inner displacement plate 17. The inner wall fitting push block 20 is installed on the telescopic support push rod 19.

[0017] According to the attached Figures 1 - 5It is concluded that the polyimide plugging extension sphere 8 is inserted deep into the ruptured part of the pipeline by holding the plugging component, and then the device host 1 is operated through the operation panel 2, thereby driving the integrated air compressor 4 to prepare compressed air, and the compressed air flows into the sphere connecting valve 7 through the extended inflation tube 6, and finally the polyimide plugging extension sphere 8 is filled and expanded, thereby fully filling the ruptured pipeline. The waterproof protective layer and protective insulating layer provided on the device host 1 can make the working environment of the device host 1 not afraid of the humid and waterlogged ground environment, and prevent short circuits and leakage, etc., and the extended power cord provided on the device host 1 can make the device The L-shaped holding rod 12 connected to the holding handle 13 is screwed into the connecting expansion sleeve 10 on the positioning holding rod 9, and the combined screw 11 in the connecting expansion sleeve 10 is screwed and assembled into the L-shaped holding rod 12, so that the connecting expansion sleeve 10 and the L-shaped holding rod 12 form a whole, so that the worker can hold the L-shaped holding rod 12, the connecting expansion sleeve 10 and the positioning holding rod 9 through the holding handle 13, so that the polyimide plugging extension ball 8 can be extended into the deep of the pipeline groove, and then fully expanded, and the rubber anti-slip pad provided on the holding handle 13 can This allows the operator to obtain a better gripping feel and gripping force, so that the polyimide plugging extension sphere 8 can be more conveniently extended into the depth of the crack; for some cracks with larger openings, it is difficult to complete the sealing of the crack by relying solely on the polyimide plugging extension sphere 8 to plug the crack, so after the polyimide plugging extension sphere 8 completes the plugging, the L-shaped holding rod 12 is screwed apart from the connecting expansion sleeve 10, and then the expansion and plugging tube 3 is lifted up through a pair of holding handles 14 on the tube, and the supporting cone 21 is extended into the opening, driving the telescopic gas rod 15 in the expansion and plugging tube 3 to extend, thereby allowing the push cone block 16 to be pushed in the expansion and plugging tube 3. The inner wall is pushed, so that multiple push-in positioning components are pushed and the pipe walls are firmly pressed against each other. At this time, the supporting cone 21 can generate a supporting force for the polyimide plugging extension sphere 8 to prevent the failure of plugging; the pushing cone block 16 pushes multiple telescopic support push rods 19, so that multiple reset auxiliary springs 18 are pushed and compressed, and then multiple telescopic support push rods 19 extend outward, so that multiple inner wall fitting push blocks 20 will press against the inner wall of the pipe. The fitting reinforcement plastic pads provided on the inner wall fitting push blocks 20 can make the multiple inner wall fitting push blocks 20 fit tightly against the inner wall of the pipe, so that the blocked pipe is safer.

[0018] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A device for plugging leaks in burst pipes of thermal power boilers, comprising: A device main body, an operation panel, and an extended plugging cylinder. The operation panel is installed on the device main body. A hole plugging support structure is installed on the extended plugging cylinder, and a hole flexible filling structure is installed on the device main body. It is characterized in that the hole flexible filling structure includes: an integrated air compressor, an air pipe placement block, an extended filling air pipe, a sphere connection valve, a polyimide plugging extended sphere, a positioning holding rod, and a connection extension sleeve. The integrated air compressor is installed on the device main body. The air pipe placement block is installed on the integrated air compressor. The extended filling air pipe is connected to the air pipe placement block and is also connected to the sphere connection valve. The sphere connection valve is installed on the polyimide plugging extended sphere and is connected to the positioning holding rod. The connection extension sleeve is installed on the positioning holding rod, and a holding and plugging assembly is installed on the connection extension sleeve.

2. The leak plugging device for a burst pipe of a thermal power boiler according to claim 1, wherein, The holding and plugging assembly includes: a combined screw, an L-shaped holding rod, a holding grip, and a supporting cone. The combined screw is installed in the connection extension sleeve and is screwed and inserted into the L-shaped holding rod. The holding grip is installed on the L-shaped holding rod, and the L-shaped holding rod is inserted into the connection extension sleeve.

3. The leak plugging device for burst pipe of thermal power boiler according to claim 2, characterized in that, The hole plugging support structure includes: a pair of barrel upper holding handles, a telescopic air rod, a pushing cone block, and several barrel inner displacement plates. A pair of the barrel upper holding handles are respectively installed on the extended plugging cylinder. The telescopic air rod is installed in the extended plugging cylinder. The pushing cone block is installed in the extended plugging cylinder and is connected to the telescopic air rod. Several barrel inner displacement plates are respectively installed in the extended plugging cylinder. The supporting cone is installed on the extended plugging cylinder, and several pushing and stopping and positioning components are respectively arranged on several barrel inner displacement plates.

4. A tube explosion plugging device for thermal power boilers according to claim 3, characterized in that, The pushing and stopping and positioning component includes: several reset auxiliary springs, a telescopic support push rod, and an inner wall fitting push block. Several reset auxiliary springs are respectively installed in the extended plugging cylinder and are respectively connected to the barrel inner displacement plates. The telescopic support push rod is movably inserted into the extended plugging cylinder and is fixedly inserted into the barrel inner displacement plate. The inner wall fitting push block is installed on the telescopic support push rod.

5. The leak plugging device for a thermal power boiler tube explosion according to claim 4, characterized in that, A fitting and reinforcing plastic pad is arranged on the inner wall fitting push block.

6. The leak plugging device for a thermal power boiler tube explosion according to claim 5, wherein, A rubber anti-slip sleeve is arranged on the barrel upper holding handle.

7. The leak plugging device for a thermal power boiler tube rupture according to claim 6, wherein, A rubber anti-slip pad is arranged on the holding grip.

8. A tube burst plugging device for thermal power boilers according to claim 7, characterized in that, A waterproof protection layer is arranged on the device main body.

9. The leak plugging device for a thermal power boiler tube rupture according to claim 8, characterized in that, An extended power cord is arranged on the device main body.

10. A tube rupture plugging device for thermal power boilers according to claim 9, characterized in that, A protective insulation layer is arranged on the device main body.