CN216945974U - Steel pipe shaft permanent inspection system based on pulley guiding - Google Patents
Steel pipe shaft permanent inspection system based on pulley guiding Download PDFInfo
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- CN216945974U CN216945974U CN202122742621.5U CN202122742621U CN216945974U CN 216945974 U CN216945974 U CN 216945974U CN 202122742621 U CN202122742621 U CN 202122742621U CN 216945974 U CN216945974 U CN 216945974U
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- hanging point
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- pulley
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides a pulley guide-based permanent inspection system for a steel pipe shaft, which comprises an upstream bent pipe section arranged at the top end of the shaft, wherein a butterfly valve is arranged at the end part of the upstream bent pipe section; a first permanent hanging point is fixed at the top end of the inlet part of the upstream bent pipe section, and a second permanent hanging point and a third permanent hanging point are respectively fixed on the inner arc wall of the upstream bent pipe section; a fourth permanent hanging point is arranged at the transitional connection part of the upstream bend section and the vertical shaft; during inspection, the cable sequentially bypasses the disassembly pulley assemblies on the first permanent hanging point, the second permanent hanging point, the third permanent hanging point and the fourth permanent hanging point. The inspection system can be used for auxiliary inspection of a shaft section of a water transport penstock.
Description
Technical Field
The utility model belongs to the technical field of shaft overhaul, and particularly relates to a permanent inspection system for a steel pipe shaft based on pulley guiding.
Background
High-pressure water pipe need regularly inspect in order to guarantee its security, and usual inspection age is about 5 years, to the pipeline that the level was arranged, can adopt artifical direct mode that gets into to inspect the inner wall, and to the steel pipe shaft of big difference in height, just need adopt the mode entering of hanging flower basket, the problem that adopts hanging flower basket lift inspection operation mode to exist is: because the upstream and downstream ends of the connecting steel pipe vertical shaft section are of bent pipe structures, a steel wire rope connected with a hanging basket is easy to abrade the bent pipe section, and further serious damage is caused to the inner wall of a pipeline; in addition, the hanging basket is adopted, so that the hanging basket is easy to shake in the lowering process, and the inspection of an operator is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a pulley-guiding-based permanent inspection system for a steel pipe shaft, which can be used for performing auxiliary inspection on a shaft section of a water delivery pressure steel pipe, and effectively avoids possible damage to the inner wall of a pipeline in the traditional inspection process; and it adopts a permanent arrangement mode to facilitate the normal inspection operation of each subsequent inspection period.
In order to achieve the technical features, the utility model is realized as follows: the permanent inspection system for the steel pipe shaft based on pulley guiding comprises an upstream bent pipe section arranged at the top end of the shaft, wherein a butterfly valve is arranged at the end part of the upstream bent pipe section, the butterfly valve is integrally arranged inside a butterfly valve chamber, a winch is fixedly arranged inside the butterfly valve chamber, a cable is wound on a winding drum of the winch, and the other end of the cable is connected with a trolley;
a first permanent hanging point is fixed at the top end of the inlet part of the upstream bent pipe section, and a second permanent hanging point and a third permanent hanging point are respectively fixed on the inner arc wall of the upstream bent pipe section; a fourth permanent hanging point is arranged at the transitional connection part of the upstream bent pipe section and the vertical shaft;
during inspection, the cable sequentially bypasses the disassembly pulley assemblies on the first permanent hanging point, the second permanent hanging point, the third permanent hanging point and the fourth permanent hanging point.
The inlet of the butterfly valve is communicated with the upstream horizontal pipe section, a pressure relief cavity is arranged inside the upstream horizontal pipe section, the pressure relief cavity is communicated with a water collecting well through a communication hole, the top of the water collecting well is communicated with a water intercepting ditch, and the water intercepting ditch is arranged at the slope bottom of a slope body.
A bridge crane is arranged in the butterfly valve chamber; the butterfly valve is provided with an inspection manhole for entering inspection personnel.
The winch is fixedly installed on an installation base in the butterfly valve chamber through an anchor rod;
the winch adopts a double-cable and coaxial winch.
The first permanent hanging point, the second permanent hanging point, the third permanent hanging point and the fourth permanent hanging point adopt the same structure and comprise hanging point steel plates fixed on the inner wall of the steel pipe, and the longitudinal direction of the hanging point steel plates is in the same direction with the central line of the steel pipe and is arranged along the direction of water flow; the hanging point steel plate partially penetrates through the wall of the steel pipe, the outer wall of the steel pipe is welded and reinforced by the reinforced steel plate, all welding is performed by open-slope mouth welding, the welding line is polished smoothly, and the anti-rust standard is the same as that of the steel pipe.
The disassembling pulley component comprises a pulley yoke, the pulley yoke is installed on a corresponding permanent hanging point through a bolt component, a double-groove pulley is rotatably installed on the pulley yoke through a pulley shaft, and two outer walls of the pulley yoke are V-shaped and symmetrically fixed with a steel cable guide plate.
The trolley comprises a trolley body, a seat plate is arranged in the trolley body, and a cable connecting hole is formed in the top end of the trolley body; the surface of the vehicle body, which is attached to the inner wall of the pipeline, is provided with a wheel assembly.
The wheel assembly comprises a wheel frame fixed on the outer wall of the vehicle body, wheels are mounted on the wheel frame through wheel shaft supports, and strong magnets used for being adsorbed to the inner wall of the pipeline are fixedly mounted on the wheel shafts through locking nuts.
The utility model has the following beneficial effects:
1. the inspection system can be used for performing auxiliary inspection on the vertical shaft section of the water delivery pressure steel pipe, and effectively avoids possible damage to the inner wall of the pipeline in the traditional inspection process; and it adopts a permanent arrangement mode to facilitate the normal inspection operation of each subsequent inspection period.
2. Through foretell catch drain can be used for intercepting the rainwater and collect to flow into and collect in the inside of sump pit, finally enter into inside the pressure release cavity, and then flow into the pipeline of low reaches.
3. The trolley can be conveniently hoisted through the bridge crane, so that the operation of subsequent maintainers is facilitated. Inside can make things convenient for the maintainer to enter into the steel pipe through overhauing the manhole to in its inside inspection.
4. Through adopting foretell hoist engine can connect two hoisting points in the top of dolly simultaneously, and then guaranteed the security and the reliability of promotion.
5. The permanent hanging point structure can be used for guiding the mooring rope, and further damage to the inner wall of the steel pipe is prevented.
6. Can be used for leading to the hawser through foretell dismantlement loose pulley assembly, it adopts the detachable mounting means moreover, can dismantle after overhauing the completion, and can not influence normal water delivery process.
Drawings
The utility model is further illustrated by the following figures and examples.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is an enlarged view of the upstream bend of the present invention.
Figure 3 is a cross-sectional view of the permanent hang point and cart of the present invention inside a duct.
Figure 4 is a front view of the cart of the present invention.
Fig. 5 is a partial view of the cart of the present invention in a downstream pipe bend.
In the figure: the device comprises an upstream horizontal pipe section 1, a water collecting well 2, a pressure relief chamber 3, a communication hole 4, a slope body 5, a catch basin 6, an overflow pipe 7, a butterfly valve 8, a butterfly valve chamber 9, a bridge crane 10, an inspection manhole 11, a winch 12, an anchor rod 13, a first permanent hanging point 14, a trolley 15, a detachable pulley component 16, a cable 17, an upstream bent pipe section 18, a second permanent hanging point 19, a third permanent hanging point 20, a fourth permanent hanging point 21, a shaft 22, a downstream bent pipe section 23, a downstream horizontal pipe section 24, a vehicle body 25, a wheel frame 26, a powerful magnet 27, a locking nut 28, a wheel axle 29, a wheel 30, a guide plate 31, a double-groove pulley 32, a pulley axle 33, a reinforced steel plate 34, a hanging point steel plate 35, a bolt component 36, a pulley frame 37 and a cable connecting hole 38.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, the permanent inspection system for the steel pipe shaft based on pulley guiding comprises an upstream bent pipe section 18 arranged at the top end of a shaft 22, wherein a butterfly valve 8 is arranged at the end part of the upstream bent pipe section 18, the butterfly valve 8 is integrally arranged inside a butterfly valve chamber 9, a winch 12 is fixedly arranged inside the butterfly valve chamber 9, a cable 17 is wound on a winding drum of the winch 12, and the other end of the cable 17 is connected with a trolley 15; a first permanent hanging point 14 is fixed at the top end of the inlet part of the upstream bent pipe section 18, and a second permanent hanging point 19 and a third permanent hanging point 20 are respectively fixed on the inner arc wall of the upstream bent pipe section 18; a fourth permanent hanging point 21 is arranged at the transitional connection part of the upstream elbow section 18 and the vertical shaft 22; during inspection, the cable 17 is sequentially wound around the dismounting pulley assembly 16 at the first permanent hanging point 14, the second permanent hanging point 19, the third permanent hanging point 20 and the fourth permanent hanging point 21. The inspection system can be used for performing auxiliary inspection on the vertical shaft section of the water delivery pressure steel pipe, and effectively avoids possible damage to the inner wall of the pipeline in the traditional inspection process; and it adopts a permanent arrangement mode to facilitate the normal inspection operation of each subsequent inspection period.
Further, the inlet of the butterfly valve 8 is communicated with the upstream horizontal pipe section 1, a pressure relief chamber 3 is arranged inside the upstream horizontal pipe section 1, the pressure relief chamber 3 is communicated with the water collecting well 2 through a communication hole 4, the top of the water collecting well 2 is communicated with a water intercepting ditch 6, and the water intercepting ditch 6 is arranged at the bottom of the slope body 5. The intercepting ditch 6 can be used for intercepting and collecting rainwater, and the rainwater flows into the collecting well 2 and is collected, finally enters the pressure relief chamber 3 and flows into a downstream pipeline.
And an overflow pipe 7 is integrally arranged inside the water collecting well 2 for controlling the liquid level height inside the water collecting well 2.
Further, a bridge crane 10 is arranged inside the butterfly valve chamber 9; the butterfly valve 8 is provided with an inspection manhole 11 for entering inspection personnel. The trolley can be conveniently hoisted through the bridge crane 10, so that the operation of subsequent maintainers is facilitated. Inside can make things convenient for the maintainer to enter into the steel pipe through overhauing manhole 11 to in its inside inspection.
Further, the winch 12 is fixedly installed on an installation foundation in the butterfly valve chamber 9 through an anchor rod 13; the above-described fixing method can be used to reliably fix the hoist 12. But also can be used to provide the lifting power for the trolley by means of the hoist 12.
Further, the winch 12 is a double-cable, coaxial winch. By adopting the winch 12, two hoisting points at the top of the trolley can be connected at the same time, and the lifting safety and reliability are further ensured.
Further, the first permanent hanging point 14, the second permanent hanging point 19, the third permanent hanging point 20 and the fourth permanent hanging point 21 adopt the same structure, and comprise hanging point steel plates 35 fixed on the inner wall of the steel pipe, wherein the longitudinal direction of the hanging point steel plates 35 is the same as the central line of the steel pipe and is arranged along the direction of water flow; the hanging point steel plate 35 partially penetrates through the wall of the steel pipe, the outer wall of the steel pipe is welded and reinforced by the reinforcing steel plate 34, all welding is performed by open-slope mouth welding, a welding line is polished smoothly, and the anti-rust standard is the same as that of the steel pipe. The permanent hanging point structure can be used for guiding the mooring rope, and further damage to the inner wall of the steel pipe is prevented.
Further, the detaching pulley assembly 16 comprises a pulley frame 37, the pulley frame 37 is mounted on a corresponding permanent hanging point through a bolt assembly 36, a double-groove pulley 32 is rotatably mounted on the pulley frame 37 through a pulley shaft 33, and the two outer walls of the pulley frame 37 are symmetrically fixed with the cable guide plates 31 in a V shape. The disassembly pulley assembly 16 can be used for guiding the mooring rope, and the disassembly pulley assembly can be disassembled after the overhaul is finished by adopting a detachable installation mode without influencing the normal water conveying process.
Further, the trolley 15 comprises a trolley body 25, a seat plate 39 is arranged inside the trolley body 25, and a cable connecting hole 38 is arranged at the top end of the trolley body 25; the surface of the vehicle body 25, which is attached to the inner wall of the pipeline, is provided with a wheel assembly. The above-described cart 15 can be used to carry an inspector.
Further, the wheel assembly comprises a wheel frame 26 fixed on the outer wall of the vehicle body 25, a wheel 30 is supported and mounted on the wheel frame 26 through a wheel shaft 29, and a strong magnet 27 for attracting the inner wall of the pipeline is fixedly mounted on the wheel shaft 29 through a locking nut 28. The wheel assembly can achieve a good guiding purpose, and can be attracted with the inner wall of the pipeline through the strong magnet 27, so that the wheel assembly is prevented from shaking, and the safety of operation is guaranteed.
Example 2:
the maintenance system of the utility model is specifically arranged and characterized as follows:
1) 4 fixed permanent hanging points are arranged at the upper end part of the pressure steel pipe and used for hanging pulleys. The first permanent hanging point 14 is located directly above the steel pipe axis or the second permanent hanging point 19, the third permanent hanging point 20 and the fourth permanent hanging point 21 are located directly below.
2) The upper end of the steel pipe belongs to the low-pressure section, and all the pulley hanging points are located in the low-pressure section, so that the condition that objects are additionally welded on the high-pressure section is avoided, and the safe operation of the pressure steel pipe is ensured.
3) The hanging point is made of steel plates, the material of the hanging point is consistent with that of the pressure steel pipe, the longitudinal direction of the hanging point is the same as the center line of the pressure steel pipe, water flow is guaranteed to be symmetrical, and impact of the water flow on the hanging point is reduced. The hanging point steel plate partially penetrates through the wall of the pressure steel pipe, the steel plate is additionally arranged on the outer wall of the steel pipe for welding and reinforcing, all welding is performed by open-slope mouth welding, the welding line is polished smoothly, and the anti-rust standard is the same as that of the pressure steel pipe.
4) Stability of the trolley: when the trolley runs, the wheels are pressed on the wall of the steel pipe in the whole course, and the wheels are plastic wheels, so that the lateral friction force between the wheels and the steel pipe can be increased while the inner wall of the steel pipe is protected, and the stability of the trolley is kept. According to the characteristic that gravity always vertically faces downwards, the trolley can be automatically kept at the lowest point under the action of gravity, so that the trolley can be automatically positioned under the steel pipe or on the upstream surface. In addition, if necessary, the stability of the trolley can be better by adding magnets at the wheels.
5) The system adopts double cables and coaxial windlasses to run synchronously, and can ensure the safety of the trolley.
Example 3:
the specific operation process of the system for pipeline inspection is as follows:
1) after the water in the tunnel is emptied, the butterfly valve of the butterfly valve chamber is removed, and the ball valve entrance door in the plant is opened to generate natural wind in the pressure pipeline. If the natural air quantity is insufficient, an air blower is adopted to blow air into the pressure pipeline from a ball valve entrance door;
2) installing a winch;
3) checking the safety of the first permanent hanging point 14, if the hanging point is intact, installing a pulley of the first permanent hanging point 14, otherwise, repairing the hanging point;
4) mounting a trolley: the trolley is hoisted into the steel pipe by using a valve chamber internal bridge crane, but the trolley is connected with the installed pulley by using a safety rope in advance;
5) the winch and the trolley are operated in a trial mode, the stroke of the trolley cannot exceed the second permanent hanging point 19, and therefore the steel cable is prevented from contacting the inner wall of the steel pipe to cause mutual abrasion;
6) if all the test operations of the trolley are normal, an inspector is dispatched to the trolley and carries out pulley installation on the trolley to a second permanent hanging point 19, a third permanent hanging point 20 and a fourth permanent hanging point 21 respectively, the safety of each hanging point needs to be inspected before the pulley installation, otherwise, the hanging points need to be repaired;
7) after all pulleys are installed, carrying out unmanned trial operation on the trolley, and loading 150kg of sand bags in the trolley during operation, wherein the stroke of the trolley is not more than 150 m;
8) checking whether the trolley and the pulley are normal after test operation, if so, formally checking if the trolley and the pulley are normal after the sandbags are removed, otherwise, checking the reason that the passenger of the trolley is 1 person;
9) after the steel pipe is inspected, when the trolley ascends to the pulley hanging point, the pulleys of the second permanent hanging point 19, the third permanent hanging point 20 and the fourth permanent hanging point 21 are respectively dismantled and taken out of the pressure pipeline, and no pulley is left in the steel pipe;
10) dismantling the trolley and the first permanent hanging point 14;
11) dismantling the winch;
12) and (5) installing a butterfly valve, closing a ball valve entrance door in the plant, and finishing the inspection.
Claims (8)
1. The permanent inspection system for the steel pipe shaft based on pulley guiding is characterized by comprising an upstream bent pipe section (18) arranged at the top end of a shaft (22), wherein a butterfly valve (8) is installed at the end part of the upstream bent pipe section (18), the butterfly valve (8) is integrally arranged inside a butterfly valve chamber (9), a winch (12) is fixedly installed inside the butterfly valve chamber (9), a cable (17) is wound on a winding drum of the winch (12), and the other end of the cable (17) is connected with a trolley (15);
a first permanent hanging point (14) is fixed at the top end of the inlet part of the upstream bent pipe section (18), and a second permanent hanging point (19) and a third permanent hanging point (20) are respectively fixed on the inner arc wall of the upstream bent pipe section (18); a fourth permanent hanging point (21) is arranged at the transitional connection part of the upstream elbow section (18) and the vertical shaft (22);
during inspection, the cable (17) sequentially bypasses the disassembly pulley assemblies (16) on the first permanent hanging point (14), the second permanent hanging point (19), the third permanent hanging point (20) and the fourth permanent hanging point (21).
2. The permanent inspection system for the steel pipe shaft based on the pulley guide as claimed in claim 1, wherein: the inlet of the butterfly valve (8) is communicated with the upstream horizontal pipe section (1), a pressure relief chamber (3) is arranged inside the upstream horizontal pipe section (1), the pressure relief chamber (3) is communicated with the water collecting well (2) through a communicating hole (4), the top of the water collecting well (2) is communicated with a water intercepting ditch (6), and the water intercepting ditch (6) is arranged at the bottom of the slope body (5).
3. The permanent inspection system for the steel pipe shaft based on the pulley guide as claimed in claim 1, wherein: a bridge crane (10) is arranged in the butterfly valve chamber (9); the butterfly valve (8) is provided with an inspection manhole (11) for entering inspection personnel.
4. The permanent inspection system for the steel pipe shaft based on the pulley guide as claimed in claim 1, wherein: the winch (12) is fixedly installed on an installation foundation in the butterfly valve chamber (9) through an anchor rod (13);
the winch (12) adopts a double-cable and coaxial winch.
5. The permanent inspection system for the steel pipe shaft based on the pulley guide as claimed in claim 1, wherein: the first permanent hanging point (14), the second permanent hanging point (19), the third permanent hanging point (20) and the fourth permanent hanging point (21) adopt the same structure and comprise hanging point steel plates (35) fixed on the inner wall of the steel pipe, and the longitudinal direction of the hanging point steel plates (35) is in the same direction with the central line of the steel pipe and is arranged along the direction of water flow; the hanging point steel plate (35) partially penetrates through the wall of the steel pipe, the outer wall of the steel pipe is welded and reinforced by a reinforcing steel plate (34), all welding is performed by open-slope mouth welding, a welding line is polished smoothly, and the rust prevention standard is the same as that of the steel pipe.
6. The permanent inspection system for the steel pipe shaft based on the pulley guide as claimed in claim 1, wherein: dismantle pulley assembly (16) and include pulley yoke (37), pulley yoke (37) are installed on corresponding permanent hanging point through bolt assembly (36), and pulley yoke (37) are gone up and are rotated through pulley spindle (33) and install double flute pulley (32), and two outer walls of pulley yoke (37) are V type symmetry and are fixed with steel cable baffle (31).
7. The permanent inspection system for the steel pipe shaft based on the pulley guide as claimed in claim 1, wherein: the trolley (15) comprises a trolley body (25), a seat plate (39) is arranged in the trolley body (25), and a cable connecting hole (38) is formed in the top end of the trolley body (25); the surface of the vehicle body (25) which is attached to the inner wall of the pipeline is provided with a wheel assembly.
8. The permanent inspection system of steel pipe shaft based on pulley direction as claimed in claim 7, wherein: the wheel assembly comprises a wheel frame (26) fixed on the outer wall of a vehicle body (25), a wheel (30) is supported and mounted on the wheel frame (26) through a wheel shaft (29), and a strong magnet (27) used for being adsorbed to the inner wall of the pipeline is fixedly mounted on the wheel shaft (29) through a locking nut (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122742621.5U CN216945974U (en) | 2021-11-10 | 2021-11-10 | Steel pipe shaft permanent inspection system based on pulley guiding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122742621.5U CN216945974U (en) | 2021-11-10 | 2021-11-10 | Steel pipe shaft permanent inspection system based on pulley guiding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216945974U true CN216945974U (en) | 2022-07-12 |
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ID=82304306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122742621.5U Active CN216945974U (en) | 2021-11-10 | 2021-11-10 | Steel pipe shaft permanent inspection system based on pulley guiding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216945974U (en) |
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2021
- 2021-11-10 CN CN202122742621.5U patent/CN216945974U/en active Active
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