Overhaul exhaust structure and large-diameter buried water conveying pipeline

Abstract

The utility model discloses an overhaul exhaust structure and a large-diameter buried water conveying pipeline. The overhaul exhaust structure comprises a branch pipe and a plurality of exhaust pipes. One end of the branch pipe is communicated with one side of the water conveying main pipe, the other end of the branch pipe extends upwards to the position above the ground, a manhole is formed in a port, located above the ground, of the branch pipe, and a blind plate playing a role in sealing and protection is arranged at the manhole; crawling ladders are arranged in the branch pipes, and the crawling ladders are arranged on the inner walls of the branch pipes and arranged in the extending direction of the branch pipes; one end of each exhaust pipe is communicated with the branch pipe, and the other end of each exhaust pipe extends above the ground; and each exhaust pipe is provided with an exhaust valve. The utility model is particularly suitable for large-diameter buried water pipes, provides exhaust conditions for the large-diameter buried water pipes, is convenient for maintainers to go in and out, and is beneficial to normal pipeline maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of large diameter buried water delivery pipe auxiliary structure, specifically to a kind of overhaul exhaust structure and large diameter buried water delivery pipeline. BACKGROUND

[0002] With the high-speed development of water diversion project, more and more regional water diversion projects with long distance and large flow, many of which are large diameter pipeline water delivery projects. In the water supply system, large diameter water delivery pipeline is prone to generate gas in the pipeline due to the fast water flow, and the existence of these gases can cause unstable water flow, affect the water supply efficiency, and even cause damage to the pipeline. Therefore, an exhaust pipe needs to be provided on the water delivery pipeline to timely remove the gas in the pipeline and ensure water supply. The most common exhaust method is to set an exhaust valve at the high point of the pipeline. However, this exhaust method has some difficulties when applied to large diameter pipelines, such as the access manhole of large diameter pipelines is usually set at the top of the pipeline, which causes the exhaust valve to be too close to the access manhole, making it inconvenient to add exhaust structures. At the same time, the access manhole of traditional large diameter water delivery pipelines is located at the top of the pipeline, which also causes difficulty for maintenance personnel to enter and exit.

[0003] Therefore, it is necessary to propose an overhaul exhaust structure for large diameter buried water delivery pipelines to solve the above technical problems. SUMMARY

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an overhaul exhaust structure that is particularly suitable for large diameter buried water delivery pipelines, provides exhaust conditions, and is convenient for maintenance personnel to enter and exit, which is beneficial for normal pipeline maintenance.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An overhaul exhaust structure includes a branch pipe and a plurality of exhaust pipes.

[0007] One end of the branch pipe is in communication with one side of the water delivery main pipe, and the other end extends upward to above the ground. The port of the branch pipe above the ground forms an access hole, and a blind plate for sealing and protection is provided at the access hole. A ladder is provided in the branch pipe, and the ladder is arranged on the inner wall of the branch pipe and extends along the extension direction of the branch pipe.

[0008] One end of each exhaust pipe is in communication with the branch pipe, and the other end extends to above the ground. An exhaust valve is provided on each exhaust pipe.

[0009] In one preferred embodiment of the utility model, the ladder includes a plurality of foot supports, and the foot supports are arranged at intervals.

[0010] One preferred embodiment of the utility model discloses a ladder is set up on the branch pipe radial direction side away from water supply main pipe.

[0011] Preferably, the inner wall of the branch pipe is butted with the inner wall of the water supply main pipe, and the lower end of the ladder extends downward to the inner wall of the water supply main pipe.

[0012] One preferred embodiment of the utility model discloses that the exhaust pipe is equipped with an overhauling valve.

[0013] One preferred embodiment of the utility model discloses that the exhaust pipe includes a horizontal section and a vertical section, the port of the horizontal section is communicated with the branch pipe, the port of the vertical section extends upward to above the ground, and the exhaust valve is arranged at the port of the vertical section.

[0014] One preferred embodiment of the utility model discloses that two exhaust pipes are arranged and are connected to the two sides of the branch pipe respectively.

[0015] One preferred embodiment of the utility model discloses that the utility model further includes a breather pipe, one end of the breather pipe is communicated with the top of the water supply main pipe, and the other end is communicated with the branch pipe.

[0016] The utility model further provides a large-diameter buried water supply pipeline comprising a plurality of the overhauling and exhaust structure.

[0017] The large-diameter buried water supply pipeline comprises a water supply main pipe and a plurality of the overhauling and exhaust structure, and the plurality of overhauling and exhaust structures are arranged at intervals along the extension direction of the water supply main pipe.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The overhauling and exhaust structure of the utility model has the functions of overhauling and exhaust, forms a "three-way" structure, can realize the functions of pipeline fittings to the maximum extent, optimizes pipeline construction structures, reduces the required land area, and saves the engineering cost to the maximum extent.

[0020] Meanwhile, the branch pipe of the utility model is located on one side of the water supply main pipe and extends to above the ground, which overcomes the need of excavating earthwork during the overhauling and repair of the buried pipeline, saves manpower and material resources, and overcomes the problem of inconvenient passing through the conventional overhauling hole in the water supply pipeline. DRAWINGS

[0021] Figure 1 Fig. 1 is a schematic view of the overhauling and exhaust structure of the utility model. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the embodiments and drawings, but the implementation mode of the utility model is not limited to this.

[0023] Referring to Figure 1 The embodiment discloses a kind of overhauling exhaust structures, especially applicable to large diameter buried water pipeline, it includes branch pipe 2 and several exhaust pipes 3.The one end of branch pipe 2 is communicated with one side of water supply main pipe 1, the other end extends to above ground, the port of branch pipe 2 above ground forms manhole, blind plate 6 is arranged at manhole and plays the role of closing protection;Ladder is arranged in branch pipe 2, and ladder is arranged on the inner wall of branch pipe 2 and is arranged along the extension direction of branch pipe 2;The one end of each exhaust pipe 3 is communicated with branch pipe 2, and the other end extends to above ground;Exhaust valve 4 is arranged on each exhaust pipe 3.

[0024] Further, the ladder includes a plurality of foot supports 7, and the plurality of foot supports 7 are arranged at intervals.The ladder of the embodiment includes a plurality of foot supports 7, which facilitates fixation with the inner wall of the branch pipe 2, for example, can be welded, which is simple to operate and reliable and secure.The structure of the foot support 7 facilitates the climbing of the maintenance personnel.

[0025] In addition, the ladder is arranged on the side of the branch pipe 2 away from the water supply main pipe 1 in the radial direction.The inner wall of the branch pipe 2 is butted against the inner wall of the water supply main pipe 1, and the lower end of the ladder extends downward to the inner wall of the water supply main pipe 1 and approaches the bottom of the water supply main pipe 1.The ladder is arranged on the side of the inner wall of the branch pipe 2 away from the water supply main pipe 1, i.e., on the outside of the inner cavity of the branch pipe 2, which is conducive to improving the safety of the maintenance personnel climbing, so that the maintenance personnel can fall or climb along the inner wall of the water supply main pipe 1.

[0026] Further, the exhaust pipe 3 is provided with a maintenance valve 5.The maintenance valve 5 of the embodiment can refer to the prior art, which is a valve for maintenance and repair of a pipeline system, for example, can realize the interruption of fluid medium through full opening or full closing function, which is convenient for maintenance, replacement and other operations of the pipeline.Furthermore, the maintenance valve 5 of the embodiment can be manually controlled or electrically controlled, and the specific use is flexible according to the actual situation.

[0027] Further, the exhaust pipe 3 includes a horizontal section 301 and a vertical section 302, the port of the horizontal section 301 is communicated with the branch pipe 2, and the port of the vertical section 302 extends upward to above ground;The exhaust valve 4 is arranged at the port of the vertical section 302.The maintenance valve 5 of the embodiment is located in the vertical section 302 and below the exhaust valve 4.Further, the connection position of the horizontal section 301 of the exhaust pipe 3 and the branch pipe 2 is at a higher position of the branch pipe 2, so that the length of the exhaust pipe 3 is effectively shortened, the structure is simplified, and the assembly and burial of the exhaust pipe 3 are facilitated.

[0028] Further, two exhaust pipes 3 are arranged, which are connected to the two sides of the branch pipe 2.Of course, the number of exhaust pipes 3 of the embodiment can be flexibly arranged, which is not limited to this, and the layout of the exhaust pipe 3 can also be flexibly adjusted.

[0029] The water supply main pipe 1 and the branch pipe 2 are provided with a vent pipe 8 in the embodiment. One end of the vent pipe 8 is communicated with the top of the water supply main pipe 1, and the other end is communicated with the branch pipe 2. The vent pipe 8 is provided with the functions of air exhaust, air exhaust and negative pressure control of the pipeline, and guarantees the safety of water filling.

[0030] The embodiment also provides a large-diameter buried water supply pipeline comprising a plurality of the maintenance air exhaust structures. The large-diameter buried water supply pipeline comprises a water supply main pipe 1 and a plurality of the maintenance air exhaust structures, and the plurality of the maintenance air exhaust structures are arranged at intervals along the extension direction of the water supply main pipe 1. Further, the water supply main pipe 1 of the large-diameter buried water supply pipeline can be provided with the maintenance air exhaust structure of the embodiment at different positions according to the terrain, so that the water supply main pipe 1 can be accessed through the branch pipe 2 at different positions for maintenance. The air exhaust pipe 3 arranged at different positions can also ensure that the gas in the water supply main pipe 1 is exhausted, so as to avoid affecting the normal water supply.

[0031] The above is the preferred embodiment of the utility model, but the embodiment of the utility model is not limited by the above content, and any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the utility model should be an equivalent replacement method, which is included in the protection scope of the utility model.

Claims

1. A maintenance exhaust structure, characterized in that, Includes branch pipes and several exhaust pipes; One end of the branch pipe is connected to one side of the main water supply pipe, and the other end extends upward to above ground. The port of the branch pipe above ground forms an inlet, and a blind plate is provided at the inlet for sealing and protection. A ladder is provided inside the branch pipe, and the ladder is set on the inner wall of the branch pipe and arranged along the extension direction of the branch pipe. One end of each exhaust pipe is connected to the branch pipe, and the other end extends above the ground; each exhaust pipe is equipped with an exhaust valve.

2. The maintenance exhaust structure according to claim 1, characterized in that, The ladder includes multiple legs, which are spaced apart.

3. The maintenance exhaust structure according to claim 1, characterized in that, The ladder is located on the side of the branch pipe that is radially away from the main water supply pipe.

4. The maintenance exhaust structure according to claim 2 or 3, characterized in that, The inner wall of the branch pipe is connected to the inner wall of the main water supply pipe; the lower end of the ladder extends downward to the inner wall of the main water supply pipe.

5. The maintenance exhaust structure according to claim 1, characterized in that, The exhaust pipe is equipped with a maintenance valve.

6. The maintenance exhaust structure according to claim 1 or 5, characterized in that, The exhaust pipe includes a horizontal section and a vertical section. The port of the horizontal section is connected to the branch pipe, and the port of the vertical section extends upward to above the ground. The exhaust valve is located at the port of the vertical section.

7. The maintenance exhaust structure according to claim 1, characterized in that, Two exhaust pipes are provided, which are respectively connected to both sides of the branch pipe.

8. The maintenance exhaust structure according to claim 1, characterized in that, It also includes a vent pipe; one end of the vent pipe is connected to the top of the main water supply pipe, and the other end is connected to the branch pipe.

9. A large-diameter buried water pipeline, characterized in that, It includes a water supply main pipe and several maintenance venting structures as described in any one of claims 1-8; several of the maintenance venting structures are spaced apart along the extension direction of the water supply main pipe.

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