CN113833085B - Maintenance method for inspection well without stopping water - Google Patents
Maintenance method for inspection well without stopping water Download PDFInfo
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- CN113833085B CN113833085B CN202111338623.6A CN202111338623A CN113833085B CN 113833085 B CN113833085 B CN 113833085B CN 202111338623 A CN202111338623 A CN 202111338623A CN 113833085 B CN113833085 B CN 113833085B
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/121—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the connection between shaft elements, e.g. of rings forming said shaft
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/021—Connection of sewer pipes to manhole shaft
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Water Supply & Treatment (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a maintenance method for an inspection well without stopping water, which comprises a new pipeline construction method, an original main pipeline dismantling method and an original main pipeline rerouting method, wherein a sealed box body for connecting an upstream main pipeline and a downstream main pipeline is arranged in the inspection well, the end parts of the main pipelines, which are positioned in the inspection well, are respectively provided with a sealing unit in a sealing way, the sealing units and the sealed box bodies are respectively provided with a plurality of switching ports, a plurality of switching pipelines are connected between the sealing units and the sealed box bodies through the switching ports, each switching pipeline comprises at least two sections of hoses and a section of hard pipe, a valve for controlling on-off is arranged on the hard pipe, the sealed box body is connected with the hard switching pipe, the hard switching pipe is provided with a valve for controlling on-off, and the port of the switching pipe is matched with the switching pipeline. The invention can meet various pipeline construction requirements on the premise of ensuring no water cut-off.
Description
Technical Field
The invention relates to the technical field of inspection well pipeline maintenance, in particular to a maintenance method for an inspection well without stopping water.
Background
Inspection wells are generally arranged at the junction of pipelines, at the turning position, at the position of pipe diameter or gradient change and at certain intervals on straight pipe sections, so that auxiliary structures can be inspected regularly. The operation condition of pipeline is monitored through the inspection shaft, increase new pipeline, reduce construction operations such as old pipeline, when prior art carries out above-mentioned construction to the pipeline subassembly, need stop the operation of trunk line, can cause the water supply of certain within range, if the time of cutting off water is overlength then can cause the influence to nearby resident, enterprise's production life, and the pipe diameter of cutting off water is bigger, resumes the operation of leading to water and also more difficult, and the pipeline of cutting off water within range can not obtain effective washing, still will bring certain quality of water potential safety hazard.
The invention patent application with the publication date of 2020.12.22 and the publication number of CN112112249A discloses a rapid construction method for the joint of a newly built sewage pipeline and a main pipeline (1) without stopping water, which uses a prefabricated open caisson as an inspection well at the joint of the new pipeline and a large operated pipeline, sets a hoisting point on the pipeline after the bottom sealing and hole blocking of the open caisson, cuts the pipeline by using a rope saw, and completes the joint operation after hoisting the cut pipeline.
The technical scheme of the patent application accelerates the water-break resupply efficiency, but the water-break is still needed to be stopped when the newly-built pipeline is in touch with the original pipeline and the original pipeline is cut, so that the touch and cutting construction can be performed. Therefore, in the prior art, when construction such as new pipeline construction, pipeline dismantling, old pipeline rerouting and the like is performed in the inspection well, temporary water cut-off is still needed for the upstream and downstream.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides a maintenance method for the inspection well without stopping water, which solves the technical problem that the existing inspection well pipeline cannot realize construction without stopping water.
The technical scheme of the invention is realized as follows: the maintenance method of the inspection well without stopping water, set up the sealed box used for connecting upstream trunk line and downstream trunk line in the inspection well, every trunk line locates at the end of the inspection well and seals and has plugging units, plugging units and sealed box all set up several switching ports, connect several switching pipelines through switching ports between sealing units and sealed box, each switching pipeline includes at least two hose and a section of hard pipe, set up the valve to control on-off on the hard pipe, connect the hard switching pipe on the sealed box, set up the valve to control on-off on the hard switching pipe, should switch port of the pipe and switching pipeline to adapt;
when a new pipeline is built, the original main pipelines at the upstream and downstream are continuously communicated with the switching pipeline through a sealed box body, a plugging unit is arranged at the end part of the new pipeline, then a new switching pipeline is additionally arranged between the port of the hard switching pipe and the switching port of the plugging unit, and then a valve in the hard switching pipe and the new switching pipeline is opened to realize the penetration of the new pipeline;
when the original main pipeline is removed, the transfer pipelines between other main pipelines and the sealing box body are continuously communicated, a valve on the transfer pipeline between the main pipeline to be removed and the sealing box body is closed, then the redundant hoses in the transfer pipeline are removed together, and the remaining hard pipes remain unchanged after the hose is removed, or are used for connecting new pipelines;
when the original main pipeline is redirected, the switching pipeline between the other main pipelines and the sealing box body is continuously communicated, a valve on the switching pipeline between the main pipeline to be redirected and the sealing box body is closed, and then the redirecting pipeline is detached from the hose, and the hose is connected with the new pipeline.
Further, the sealed box body is the inspection box, the shutoff unit is the shutoff dish of setting in the port department of trunk line, the transfer pipeline sets up between shutoff dish and inspection box, the hose includes first bellows and second bellows, the hard tube is including connecting the rigid pipe between first bellows and second bellows, the outer end and the shutoff dish of first bellows link to each other, the outer end and the inspection box of second bellows link to each other, can dismantle sealing connection through the connecting element between the both ends of rigid pipe respectively with first bellows, the second bellows, the valve is the stop valve of setting in the rigid pipe.
Further, the connecting unit comprises an external thread cylinder which is clamped at the end part of the first corrugated pipe or the second corrugated pipe in a sealing way, the external diameter of the external thread cylinder is the same as that of the rigid pipe, two ends of the rigid pipe are respectively clamped with the first corrugated pipe and the second corrugated pipe in a sealing way, threads opposite to the external thread cylinder are arranged on the outer wall of the rigid pipe, and the rigid pipe is connected with the external thread cylinder through an internal thread sleeve.
Further, the inner wall joint of both ends of rigid pipe has first sealing washer, and first sealing washer and the protruding sealed cooperation of first bellows or second bellows outer wall, the inner wall joint of external screw thread section of thick bamboo has the second sealing washer, and the sealed cooperation of second sealing washer and the protruding sealed cooperation of first bellows or second bellows outer wall.
Further, each end of the rigid tube is provided with at least two first sealing rings, and at least two second sealing rings are clamped on the inner wall of each external thread cylinder.
Further, the end of the external thread cylinder, which is close to the rigid pipe, is provided with a wedge-shaped surface which is in mutual compression joint.
Further, the inspection box and the plugging disc are provided with mounting openings, the mounting openings are clamped with sealing cylinders, the first corrugated pipe is in sealing connection with the plugging disc through the sealing cylinders, and the second corrugated pipe is in sealing connection with the inspection box through the sealing cylinders.
Further, the switching pipeline comprises two sections of hoses and two sections of hard pipes, valves for controlling on-off are arranged on the two sections of hard pipes, when the sealing box body is replaced, the valves in the two switching pipelines which are respectively connected with the main pipelines at the upper and lower streams are all closed, then part of pipelines between the closed valves are removed from the sealing box body, the removed pipelines are mutually butted, the valves are opened after the butt joint, the main pipelines at the upper and lower streams are simultaneously communicated with the pipelines which are newly butted through the sealing box body, then the valves in the other switching pipelines are completely closed, the connection with the sealing box body is removed, then the sealing box body is removed from the inspection well, the switching pipelines are connected with the new sealing box body one by one after the new sealing box body is lifted to the inspection well, and the corresponding valves are opened after all the switching ports on the new sealing box body are connected with the switching pipelines.
The inspection box and the plurality of transfer pipelines are connected with the upstream and downstream main pipelines, construction is carried out on the premise of ensuring no water cut-off, not only can the on-off of each transfer pipeline be independently controlled and corresponding maintenance construction be carried out, but also when the old pipeline needs to be dismantled, the corresponding transfer pipeline can be directly closed through the stop valve, and the corresponding pipeline is plugged or dismantled; when the main pipeline is changed, the angle conversion and the position conversion can be performed by utilizing the specific corrugated pipe; in the construction process of constructing a new pipeline, a new transfer pipeline can be added between the inspection box and the corresponding main pipeline by utilizing the extension branch pipe; when the inspection box needs to be replaced, the local replacement and the whole replacement can be realized by replacing the transfer pipelines one by one.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a front view of the occlusion disk;
fig. 4 is a cross-sectional view of a first bellows seal with a main conduit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
A maintenance method for a manhole without stopping water is characterized in that a sealed box body for connecting an upstream main pipeline and a downstream main pipeline is arranged in the manhole, the end parts of each main pipeline 1 positioned in the manhole are all provided with sealing units in a sealing mode, a plurality of switching ports are formed in the sealing units and the sealed box body, a plurality of switching pipelines are connected between the sealing units and the sealed box body through the switching ports, each switching pipeline comprises at least two hoses and a hard pipe, a valve for controlling on-off is arranged on the hard pipe, a hard switching pipe is connected on the sealed box body, a valve for controlling on-off is arranged on the hard switching pipe, and the port of the corresponding switching pipe is matched with the switching pipeline.
When a new pipeline is built, the original main pipeline 1 at the upstream and downstream is continuously communicated with the switching pipeline through the sealing box body, a plugging unit is arranged at the end part of the new pipeline, then a new switching pipeline is additionally arranged between the port of the hard switching pipe and the switching port of the plugging unit, and then a valve in the hard switching pipe and the new switching pipeline is opened to realize the penetration of the new pipeline.
When the original main pipeline 1 is dismantled, the transfer pipelines between the other main pipelines 1 and the sealing box body are continuously communicated, a valve on the transfer pipeline between the main pipeline 1 to be dismantled and the sealing box body is closed, then the redundant hoses in the transfer pipeline are dismantled together, and the remaining hard pipes remain unchanged after the hose is dismantled by the transfer pipeline or are used for connecting new pipelines.
When the original main pipeline 1 is redirected, the switching pipeline between the other main pipelines 1 and the sealing box body is continuously communicated, a valve on the switching pipeline between the main pipeline 1 to be redirected and the sealing box body is closed, and then the redirecting pipeline is detached from the hose to connect the hose with a new pipeline.
Specifically, as shown in fig. 1-4, the sealed box body is an inspection box 3, the plugging unit is a plugging disc 2 arranged at a port of the main pipeline 1, the transfer pipeline 4 is arranged between the plugging disc 2 and the inspection box 3, the hose comprises a first corrugated pipe 41 and a second corrugated pipe 42, the hard pipe comprises a rigid pipe 43 connected between the first corrugated pipe 41 and the second corrugated pipe 42, the outer end of the first corrugated pipe 41 is connected with the plugging disc 2, the outer end of the second corrugated pipe 42 is connected with the inspection box 3, two ends of the rigid pipe 43 are respectively connected with the first corrugated pipe 41 and the second corrugated pipe 42 in a detachable sealing way through a connecting unit, and the valve is a stop valve 44 arranged in the rigid pipe 43. Construction is carried out on the premise of ensuring no water cut-off, so that the on-off of each switching pipeline can be independently controlled to carry out corresponding maintenance construction, and when an old pipeline needs to be dismantled, the corresponding switching pipeline can be directly closed through a stop valve to plug or dismantle the corresponding pipeline; when the main pipeline 1 is changed, the angle conversion and the position conversion can be performed by utilizing the specific corrugated pipe; in the construction process of constructing a new pipeline, a new transfer pipeline can be added between the inspection box and the corresponding main pipeline 1 by utilizing the extension branch pipe; when the inspection box needs to be replaced, the local replacement and the whole replacement can be realized by replacing the transfer pipelines one by one.
Specifically, the adapting pipe 4 includes a first corrugated pipe 41 and a second corrugated pipe 42, and the first corrugated pipe 41 and the second corrugated pipe 42 have the same structure. A rigid pipe 43 is arranged between the butt ends of the first corrugated pipe 41 and the second corrugated pipe 42, the stop valve 44 is arranged on the rigid pipe 43, and the on-off between the first corrugated pipe 41 and the second corrugated pipe 42 can be controlled through the arrangement of the stop valve 44 on the rigid pipe 43. As shown in fig. 3 and 4, the inspection box 3 and the plugging disc 2 are provided with mounting openings 7, the mounting openings 7 are clamped with sealing cylinders 8, the sealing cylinders 8 are made of rubber materials, and annular grooves clamped with the mounting openings 7 are formed in the periphery of the sealing cylinders 8. The first bellows 41 is connected with the sealing disk 2 in a sealing manner by the sealing cylinder 8, and the second bellows 42 is connected with the inspection box 3 in a sealing manner by the sealing cylinder 8.
The outer end of the first corrugated pipe 41 is connected with the plugging disc 2, the outer end of the second corrugated pipe 42 is connected with the inspection box 3, and two ends of the rigid pipe 43 are detachably and hermetically connected with the first corrugated pipe 41 and the second corrugated pipe 42 through connecting units. Specifically, the connection unit includes an external thread cylinder 5 that is sealed and clamped at the end of the first corrugated tube 41 or the second corrugated tube 42, the external diameter of the external thread cylinder 5 is the same as the external diameter of the rigid tube 43, two ends of the rigid tube 43 are respectively sealed and fastened with the first corrugated tube 41 and the second corrugated tube 42, the external wall of the rigid tube 43 is provided with threads opposite to the external thread cylinder 5, and the rigid tube 43 and the external thread cylinder 5 are connected through the internal thread sleeve 10. By screwing the internally threaded sleeve 10, the externally threaded cylinder 5 and the rigid tube 43 can be driven toward or away from each other, thereby achieving the sealed connection and disconnection of the first bellows 41 and the second bellows 42.
Specifically, the inner walls of the two end portions of the rigid tube 43 are clamped with first sealing rings 5, the first sealing rings 5 are fixed on the inner wall of the rigid tube 43 through ring grooves, the first sealing rings 5 are in sealing fit with the protrusions on the outer wall of the first corrugated tube 41 or the second corrugated tube 42, and the first sealing rings 5 are clamped between the peaks of the corrugated tube. The inner wall joint of the external screw thread section of thick bamboo 5 has second sealing washer 6, and similarly, the inner wall of external screw thread section of thick bamboo 5 is provided with the annular, and second sealing washer 6 is fixed in the annular, and second sealing washer 6 and the protruding sealed cooperation of first bellows 41 or second bellows 42 outer wall. Each end of the rigid tube 43 is provided with at least two first sealing rings 5, and at least two second sealing rings 6 are clamped on the inner wall of each external thread cylinder 5.
Further, the end parts of the external thread cylinder 5, which are close to the rigid pipe 43, are provided with mutually-crimped wedge-shaped surfaces 9, so that the external thread cylinder 5 and the rigid pipe 43 are crimped, and the sealing effect and the connection reliability are further ensured.
Further, an extension branch pipe capable of being connected with the transfer pipeline 4 is arranged on the inspection box 3, a stop valve is arranged on the extension branch pipe, and in the construction process of building a new pipeline, the new transfer pipeline can be added between the inspection box 3 and the corresponding main pipeline 1 by using the extension branch pipe.
In embodiment 2, the two hard pipes are respectively provided with valves for controlling on-off, when the sealed box is replaced, the valves in the two transfer pipes respectively connected with the upstream and downstream main pipes 1 are closed, then part of the pipes between the closed valves are removed from the sealed box, the removed pipes are mutually butted, the valves are opened after the butt joint, the upstream and downstream main pipes 1 are simultaneously communicated with the newly butted pipes through the sealed box, then the valves in the other transfer pipes are completely closed, the connection with the sealed box is removed, then the sealed box is removed from the inspection well, the transfer pipes are connected with the new sealed box one by one after the new sealed box is lifted to the inspection well, and the corresponding valves are opened after all the transfer ports on the new sealed box are connected with the transfer pipes.
Other structures and methods of this embodiment are the same as those of embodiment 1.
The present invention is not limited to the conventional technical means known to those skilled in the art.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (2)
1. The maintenance method for the inspection well without stopping water is characterized by comprising the following steps of: the method comprises the steps that a sealed box body for connecting an upstream main pipeline and a downstream main pipeline is arranged in an inspection well, plugging units are arranged at the end parts of the main pipelines (1) located in the inspection well in a sealing mode, a plurality of switching ports are formed in the plugging units and the sealed box body, a plurality of switching pipelines are connected between the plugging units and the sealed box body through the switching ports, each switching pipeline comprises at least two hoses and a section of hard pipe, a valve for controlling on-off is arranged on the hard pipe, a hard switching pipe is connected to the sealed box body, a valve for controlling on-off is arranged on the hard switching pipe, and a port of the corresponding switching pipe is matched with the switching pipeline;
when a new pipeline is built, the original main pipeline (1) at the upstream and downstream is continuously communicated with the switching pipeline through a sealing box body, a plugging unit is arranged at the end part of the new pipeline, then a new switching pipeline is additionally arranged between a port of the hard switching pipe and a switching port of the plugging unit, and then a valve in the hard switching pipe and the new switching pipeline is opened to realize the penetration of the new pipeline;
when the original main pipeline (1) is removed, the transfer pipelines between the other main pipelines (1) and the sealing box body are continuously communicated, a valve on the transfer pipeline between the main pipeline (1) to be removed and the sealing box body is closed, then the redundant hoses in the transfer pipeline are removed together, and the remaining hard pipes remain unchanged after the hoses are removed from the transfer pipeline or are used for connecting new pipelines;
when the original main pipeline (1) is redirected, the switching pipeline between the other main pipelines (1) and the sealing box body is continuously communicated, a valve on the switching pipeline between the main pipeline (1) to be redirected and the sealing box body is closed, then the redirecting pipeline is detached from the hose, and the hose is connected with a new pipeline;
the sealing box body is an inspection box (3), the plugging unit is a plugging disc (2) arranged at the port of the main pipeline (1), the switching pipeline (4) is arranged between the plugging disc (2) and the inspection box (3), the hose comprises a first corrugated pipe (41) and a second corrugated pipe (42), the hard pipe comprises a rigid pipe (43) connected between the first corrugated pipe (41) and the second corrugated pipe (42), the outer end of the first corrugated pipe (41) is connected with the plugging disc (2), the outer end of the second corrugated pipe (42) is connected with the inspection box (3), the two ends of the rigid pipe (43) are detachably and hermetically connected with the first corrugated pipe (41) and the second corrugated pipe (42) through connecting units, and the valve is a stop valve (44) arranged in the rigid pipe (43);
the connecting unit comprises an external thread cylinder (5) which is clamped at the end part of the first corrugated pipe (41) or the second corrugated pipe (42) in a sealing way, the external diameter of the external thread cylinder (5) is the same as the external diameter of the rigid pipe (43), the two ends of the rigid pipe (43) are respectively buckled with the first corrugated pipe (41) and the second corrugated pipe (42) in a sealing way, threads opposite to the external thread cylinder (5) are arranged on the outer wall of the rigid pipe (43), and the rigid pipe (43) is connected with the external thread cylinder (5) through an internal thread sleeve (10);
the inner walls of the two end parts of the rigid tube (43) are clamped with first sealing rings (5), the first sealing rings (5) are in sealing fit with the bulges of the outer walls of the first corrugated tube (41) or the second corrugated tube (42), the inner walls of the external thread cylinders (5) are clamped with second sealing rings (6), and the second sealing rings (6) are in sealing fit with the bulges of the outer walls of the first corrugated tube (41) or the second corrugated tube (42);
each end of the rigid pipe (43) is provided with at least two first sealing rings (5), and at least two second sealing rings (6) are clamped on the inner wall of each external thread cylinder (5);
the end part of the external thread cylinder (5) close to the rigid pipe (43) is provided with a wedge-shaped surface (9) which is mutually pressed and connected;
the switching pipeline comprises two hoses and two hard pipes, valves for controlling on-off are arranged on the two hard pipes, when the sealed box body is replaced, the valves in the two switching pipelines which are respectively connected with the upstream main pipeline (1) and the downstream main pipeline (1) are all closed, then part of pipelines between the closed valves are removed from the sealed box body, the removed pipelines are mutually butted, the valves are opened after the butt joint, the upstream main pipeline (1) and the downstream main pipeline (1) are simultaneously communicated with the newly butted pipelines through the sealed box body, then the valves in the other switching pipelines are all closed, the connection with the sealed box body is removed, then the sealed box body is removed from the inspection well, the switching pipelines are connected with the new sealed box body one by one after the new sealed box body is lifted, and the corresponding valves are opened after all switching ports on the new sealed box body are connected with the switching pipelines;
the inspection box (3) is provided with an extension branch pipe connected with the switching pipeline (4), the extension branch pipe is provided with a stop valve, and a new switching pipeline is added between the inspection box (3) and the corresponding main pipeline (1) by utilizing the extension branch pipe in the construction process of building a new pipeline.
2. The inspection well non-stop water maintenance method according to claim 1, wherein: the inspection box is characterized in that the inspection box (3) and the plugging disc (2) are provided with mounting openings (7), the mounting openings (7) are connected with sealing drums (8) in a clamping mode, the first corrugated pipe (41) is connected with the plugging disc (2) in a sealing mode through the sealing drums (8), and the second corrugated pipe (42) is connected with the inspection box (3) in a sealing mode through the sealing drums (8).
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| CN202111338623.6A CN113833085B (en) | 2021-11-12 | 2021-11-12 | Maintenance method for inspection well without stopping water |
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| CN202111338623.6A CN113833085B (en) | 2021-11-12 | 2021-11-12 | Maintenance method for inspection well without stopping water |
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| CN113833085A (en) | 2021-12-24 |
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