Foundation pit dewatering swabbing pipe column and device for pipeline hidden danger treatment operation in desert surface environment

Abstract

The invention discloses a desert surface environment pipeline hidden danger treatment operation foundation pit dewatering swabbing pipe column which comprises a drainage pipe body, the front end of the drainage pipe body is connected with a hose connector, the middle of the drainage pipe body is provided with a sand control screen pipe, the sand control screen pipe is wrapped with a screen, and drainage can be smoothly achieved in a sand-water mixed state. The invention further discloses a desert surface environment pipeline hidden danger treatment operation foundation pit dewatering device which is formed by connecting and combining a plurality of swabbing pipe columns, the number of swabbing pipe column single bodies can be set according to the flow of a sewage pump on site, and the device is not limited by the size and type of a foundation pit, is suitable for drainage of various types of foundation pits and is particularly suitable for desert oasis and desert marshland zones.

Description

Technical Field

[0001] The invention belongs to the technical field of ground gathering and transportation in oil and gas exploitation, and relates to a foundation pit dewatering pumping pipe column for desert surface environment pipeline hidden danger control operation, and also relates to a foundation pit dewatering device for desert surface environment pipeline hidden danger control operation. Background Art

[0002] During the development of oil and gas fields, due to the long-term service of ground pipelines, it is inevitable that corrosion, thinning, leakage, and third-party damage will occur during the gathering and transportation process. Therefore, the management of pipeline hidden dangers includes three different disposal stages: prevention, disposal, and reconstruction. Prevention usually adopts reinforcement operations on pipelines that have already lost metal on the basis of detection; disposal refers to the need to ensure the integrity of pipelines through emergency disposal of leaking pipelines; reconstruction refers to pipelines with problems, and it is necessary to restore their pipeline functions through interlaced management and other methods. These operations accompany the entire life cycle of pipeline service, and in some complex surface environments, especially in swamps, desert oases, and areas with shallow surface water, rapid precipitation is required to ensure the smooth progress of operations. The existing precipitation methods are labor-intensive and have low precipitation efficiency. Some of them use sewage pumps for precipitation, which cannot achieve effective precipitation operations. By referring to the precipitation tools and methods of some patents, it can be found that the Chinese patent "A drainage filter pipe for deep foundation pit of a building" (application number CNCN202210694254.2, publication number CN114768354A, publication date 2022-07-22) mainly describes the unique filter structure and cleaning function for precipitation of building foundation pits. It will lack adaptability to desert areas and desert oases because desert oases are almost a two-phase state of solid-liquid mixture. The Chinese patent "A large basement multi-well point pneumatic precipitation method based on silty soil areas" (application number CN202310125495.X, publication number CN116043891A, publication date 2023-05-02) is mainly aimed at and applied in silty soil areas. Summary of the invention

[0003] The purpose of the present invention is to provide a foundation pit dewatering pumping pipe column for desert surface environment pipeline hidden danger control operations, which can smoothly achieve drainage in a sand-water mixed state.

[0004] The purpose of the present invention is to provide a foundation pit dewatering device for desert surface environment pipeline hidden danger treatment operations, which is not limited by the size and type of the foundation pit and is suitable for various types of foundation pits.

[0005] The first technical solution adopted by the present invention is a foundation pit dewatering and pumping pipe column for desert surface environmental pipeline hidden danger control operations, including a drainage pipe main body, a hose joint is connected to the front end of the drainage pipe main body, a sand-proof screen pipe is arranged in the middle part of the drainage pipe main body, and a screen is wrapped on the outside of the sand-proof screen pipe.

[0006] The present invention is also characterized in that:

[0007] The end of the drainage pipe body is set as a Luoyang shovel structure.

[0008] The main body of the drainage pipe is a steel pipe with a specification of φ32×2.5mm, and the total length of the drainage pipe main body is 1500mm.

[0009] The end of the sand control screen is 300mm away from the end of the drainage pipe body.

[0010] The hose connector is a 90° elbow.

[0011] The screen holes of the sand control screen are φ2mm circular holes, which are distributed at intervals of 4mm in the circumferential direction of the sand control screen.

[0012] The length of the sand control screen is 1000mm.

[0013] The drainage pipe body is respectively connected to the hose joint and the sand-proof screen pipe by assembly welding.

[0014] The second technical solution adopted by the present invention is a foundation pit dewatering device for desert surface environment pipeline hidden danger control operations, including multiple foundation pit dewatering pumping pipe strings for desert surface environment pipeline hidden danger control operations, and also including a main connecting hose, one end of the main connecting hose is connected to a sewage pump, and the other end is connected to the pumping pipe string through a connecting joint and a branch connecting hose, and the main connecting hose is also connected to the pumping pipe string through a connecting joint and a branch connecting hose.

[0015] The beneficial effects of the present invention are:

[0016] The present invention provides a foundation pit dewatering pumping pipe column for desert surface environment pipeline hidden danger control operations. The unique double-layer mesh structure can ensure smooth drainage in a sand-water mixed state. Multiple pumping pipe columns can be combined to achieve foundation pit dewatering under the action of an external sewage pump.

[0017] The foundation pit dewatering device for controlling hidden dangers of pipelines on the surface environment of the desert of the present invention is composed of a plurality of pumping pipe columns of the present invention connected in combination. The number of pumping pipe column units can be equipped according to the flow rate of the on-site sewage pump. It is not limited by the size and type of the foundation pit and is applicable to various types of foundation pit drainage, especially suitable for desert oases and desert swamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a foundation pit dewatering and pumping pipe column for desert surface environment pipeline hidden danger control operation of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a foundation pit dewatering device for managing hidden dangers of pipelines in a desert surface environment according to the present invention.

[0020] In the figure, 1. hose connector, 2. drain pipe body, 3. screen, 4. sand screen, 5. main connecting hose, 6. sewage pump, 7. branch connecting hose. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] This embodiment provides a foundation pit dewatering and pumping pipe string for desert surface environment pipeline hidden danger treatment operation, such as Figure 1 As shown, it includes a drainage pipe body 2, a hose connector 1 is connected to the front end of the drainage pipe body 2, the end of the drainage pipe body 2 is set as a Luoyang shovel structure, the middle part of the drainage pipe body 2 is set as a sand-proof screen pipe 4, and the outside of the sand-proof screen pipe 4 is wrapped with a screen 3.

[0024] Example 2

[0025] The present embodiment provides a foundation pit dewatering and pumping pipe column for desert surface environment pipeline hidden danger control operations. On the basis of Example 1, the drainage pipe body 2 is a steel pipe with a specification of φ32×2.5mm, the total length of the drainage pipe body 2 is 1500mm, and the end of the sand-proof screen pipe 4 is 300mm away from the end of the drainage pipe body 2.

[0026] Example 3

[0027] This embodiment provides a foundation pit dewatering and pumping pipe string for desert surface environment pipeline hidden danger control operations. On the basis of Embodiment 1-2, the hose connector 1 is a 90° elbow.

[0028] The length of the sand-control screen tube 4 is 1000 mm, and the screen holes of the sand-control screen tube 4 are φ2 mm round holes, which are distributed at intervals of 4 mm in the circumferential direction of the sand-control screen tube 4 .

[0029] The mesh size of the screen is determined according to the size of the gravel particles, which can block 80% of the gravel particles.

[0030] Example 4

[0031] The present embodiment provides a foundation pit dewatering and pumping pipe column for desert surface environment pipeline hazard control operations. On the basis of embodiments 1-3, the drainage pipe body 2 is respectively connected to the hose connector 1 and the sand screen pipe 4 by assembly welding. The other end of the hose connector 1 is a pipe threaded connector, which is convenient for connection with the branch connecting hose 7.

[0032] Example 5

[0033] This embodiment provides a foundation pit dewatering device for desert surface environment pipeline hidden danger treatment operation, such as Figure 2As shown, it includes multiple embodiments 4 of the desert surface environment pipeline hidden danger control operation foundation pit dewatering pumping pipe string, and also includes a main connecting hose 5, one end of the main connecting hose 5 is connected to a sewage pump 6, and the other end is connected to the pumping pipe string through a connecting joint and a branch connecting hose 7. The main connecting hose 5 is also connected to the pumping pipe string through a connecting joint and a branch connecting hose 7.

[0034] The working principle of the foundation pit dewatering device for managing hidden dangers of pipelines in the desert surface environment of the present invention is as follows:

[0035] During the excavation of the foundation pit for pipeline hidden danger treatment, the water content rises. At this time, the single pumping pipe column is used in the form of soil excavation. After carrying sand and soil to a certain depth at the periphery of the foundation pit, the single pumping pipe column is placed at a certain depth. At the same time, other single pumping pipe columns are distributed at the positions where they need to be arranged. After the single pumping pipe columns are arranged according to the size of the foundation pit, the main connecting hose 5 is used to connect the branch connecting hoses 7, and connected to the sewage pump 6, and then the sewage pump 6 is started for drainage.

Claims

1. The foundation pit dewatering and pumping pipe string for desert surface environment pipeline hidden danger control operation is characterized by: It comprises a drainage pipe body (2), the front end of which is connected to a hose connector (1), the middle of which is provided with a sand-proof screen pipe (4), and the outside of which is wrapped with a screen (3).

2. The desert surface environment pipeline hidden danger treatment operation foundation pit dewatering pumping pipe string according to claim 1 is characterized in that: The end of the drainage pipe body (2) is arranged as a Luoyang shovel structure.

3. The foundation pit dewatering and pumping pipe string for desert surface environment pipeline hidden danger control operation according to claim 1 is characterized in that: The drainage pipe body (2) is a steel pipe with a specification of φ32×2.5 mm, and the total length of the drainage pipe body (2) is 1500 mm.

4. The desert surface environment pipeline hidden danger treatment operation foundation pit dewatering pumping pipe string according to claim 3 is characterized in that: The end of the sand control screen pipe (4) is 300 mm away from the end of the drainage pipe body (2).

5. The foundation pit dewatering and pumping pipe string for desert surface environment pipeline hidden danger control operation according to claim 1 is characterized in that: The hose connector (1) is a 90° elbow.

6. The desert surface environment pipeline hidden danger treatment operation foundation pit dewatering pumping pipe string according to claim 1 is characterized in that: The sieve holes of the sand control screen pipe (4) are φ2 mm circular holes, and the circular holes are distributed at intervals of 4 mm in the circumferential direction of the sand control screen pipe (4).

7. The desert surface environment pipeline hidden danger treatment operation foundation pit dewatering pumping pipe string according to claim 3 is characterized by: The length of the sand control screen pipe (4) is 1000 mm.

8. The foundation pit dewatering and pumping pipe string for desert surface environment pipeline hidden danger control operation according to claim 1 is characterized in that: The drainage pipe body (2) is respectively connected to the hose joint (1) and the sand-proof screen pipe (4) by assembly welding.

9. A dewatering device for a foundation pit for treating hidden dangers of pipelines in a desert surface environment, comprising a plurality of pumping pipe strings for dewatering a foundation pit for treating hidden dangers of pipelines in a desert surface environment as claimed in any one of claims 1 to 8, characterized in that: It also comprises a main connecting hose (5), one end of which is connected to a sewage pump (6), and the other end of which is connected to a pumping pipe column via a connecting joint and a branch connecting hose (7); the main connecting hose (5) is also connected to a pumping pipe column via a connecting joint and a branch connecting hose (7).

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