Device for suppressing test of large-diameter water delivery pipeline

Abstract

The utility model discloses a device for a pressure test of a large-caliber water conveying pipeline. The device comprises a circular ring frame body with a groove in the outer wall, a sealing plate fixedly connected with the circular ring frame body, a hollow annular inflatable bag embedded in the groove, and a rib component fixedly connected to one side of the sealing plate and fixedly connected with the circular ring frame body, an inflation tube is arranged on the annular inflation bag, a valve is arranged on the inflation tube, and an inflation connector is arranged at the end of the inflation tube. The utility model has the advantages that the device is compact and small, is convenient to install and arrange in a limited space, greatly simplifies the installation operation process, reduces the requirement on professional skills, and can be easily operated by even non-professional personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline testing, and particularly relates to a device for pressure testing of large-diameter water conveyance pipelines. Background Technique

[0002] The segmented hydrostatic test of pipelines is a test method used to detect the sealing performance and strength of pipeline systems. This test is usually carried out after the pipeline installation is completed to ensure that the pipeline will not leak or rupture under normal operating conditions. The segmented hydrostatic test of pipelines is different from the hydrostatic test carried out on the entire pipeline system. The segmented hydrostatic test allows individual testing of specific parts of the pipeline. This method is particularly suitable for long-distance pipelines or pipeline systems that are difficult to test as a whole due to geographical or structural limitations.

[0003] The Chinese utility model publication number CN 219978024 U discloses a device for pressure testing of large-diameter water conveyance pipelines, which includes a pressure testing pipeline and a sealing device. A connecting pipe is provided on the pressure testing pipeline. One side of the pressure testing pipeline is welded to the water conveyance pipeline, and a sealing device is installed at the other end. The sealing device includes a sealing plate, a group of ring parts and a cross part. A limiting ring is provided inside the pressure testing pipeline, and the sealing plate is pressed on the limiting ring. An installation seat is provided at the central axis of the sealing plate. The group of ring parts includes several concentric rings, and the several rings are connected by connecting pieces. The innermost concentric ring is sleeved on the installation seat. A ring groove is provided on the cross part, and the cross part is buckled on the group of ring parts. In order to realize the pressure testing of the water pipe, it is necessary to connect this device at both ends of the water pipe. Since this device includes a pressure testing pipeline with a certain length, the connection installation and installation sealing operation requirements of the pressure testing pipeline and the water pipe are relatively high, and the convenience of use remains to be improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for pressure testing of large-diameter water conveyance pipelines.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A device for pressure testing of large-diameter water conveyance pipelines includes a circular ring frame body with grooves on the outer wall, a sealing plate fixedly connected to the circular ring frame body, a hollow circular inflatable airbag embedded in the groove, and a rib assembly fixedly connected to one side of the sealing plate and fixedly connected to the circular ring frame body; an air charging pipe is provided on the circular inflatable airbag, a valve is provided on the air charging pipe, and an air charging joint is provided at the end of the air charging pipe.

[0007] Preferably, it further includes multiple sets of positioning components evenly distributed in a ring shape on one side of the ring frame. The positioning component includes a positioning block fixedly connected to the ring frame, a screw rod threadedly connected through the positioning block, a handle rod fixedly connected to one end of the screw rod close to the center of the sealing plate, and a positioning head hinged to the other end of the screw rod; the axis of the screw rod coincides with the diameter line of the ring frame.

[0008] Preferably, the rib component includes at least one annular rib and multiple radial ribs distributed in a ring shape with the center of the sealing plate as the center.

[0009] Preferably, there are two sets of the rib components, which are respectively located on both sides of the sealing plate.

[0010] Preferably, a handle is provided on one side of the ring frame.

[0011] Preferably, a pressure connection head is provided on the sealing plate.

[0012] Adopting the above technical solutions has the following advantages:

[0013] The utility model creatively abandons the traditional pressure pipeline connection and sealing method and instead adopts a new design concept. This design not only significantly reduces the volume of the overall structure, making it more compact and small, facilitating installation and layout in a limited space, but also greatly simplifies the installation operation process and reduces the requirements for professional skills, enabling even non-professionals to easily get started. At the same time, the utility model has fewer sealing points, which not only improves the reliability and safety of the system but also effectively avoids the potential leakage risk caused by multiple sealing points, thus ensuring the stability of the pressure test and the convenience of maintenance. Description of the Drawings

[0014] Figure 1 is the front view of the utility model;

[0015] Figure 2 is Figure 1 the top view of;

[0016] Figure 3 is Figure 1 the left view of;

[0017] Figure 4 is the cross-sectional view taken along A-A in Figure 1 ;

[0018] Figure 5 is Figure 4 the enlarged view of part B in;

[0019] Figure 6 is Figure 1 the three-dimensional view of;

[0020] Figure 7 isFigure 6 Enlarged view of part C

[0021] Figure 8 is Figure 7 Structural diagram of the pressure connection head installed in it

[0022] In the figure

[0023] 1 - groove, 2 - circular ring frame, 3 - sealing plate, 4 - annular inflatable airbag, 5 - rib assembly, 6 - inflatable pipe, 7 - valve, 8 - inflation joint, 9 - positioning block, 10 - screw rod, 11 - handle rod, 12 - positioning head, 13 - annular rib, 14 - radial rib, 15 - handle, 16 - pressure connection head Specific implementation mode

[0024] The following further describes the specific implementation mode of the present utility model with reference to the accompanying drawings. It should be noted here that the description of these implementation modes is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the following various implementation modes of the present utility model can be combined with each other as long as they do not conflict with each other

[0025] As shown in the accompanying drawings, a device for pressure test of large - diameter water - conveying pipelines includes a circular ring frame 2 with a groove 1 on its outer wall, a sealing plate 3 fixedly connected to the circular ring frame 2, a hollow annular inflatable airbag 4 embedded in the groove 1, and a rib assembly 5 fixedly connected to one side of the sealing plate 3 and fixedly connected to the circular ring frame 2; an inflatable pipe 6 is arranged on the annular inflatable airbag 4, a valve 7 is arranged on the inflatable pipe 6, and an inflation joint 8 is arranged at the end of the inflatable pipe 6

[0026] As a further improved technical solution of this embodiment, it further includes multiple sets of positioning components evenly distributed in a ring on one side of the circular ring frame 2. The positioning component includes a positioning block 9 fixedly connected to the circular ring frame 2, a screw rod 10 threadedly connected and passing through the positioning block 9, a handle rod 11 fixedly connected to the end of the screw rod 10 close to the center of the sealing plate 3, and a positioning head 12 hinged to the other end of the screw rod 10; the axis of the screw rod 10 coincides with the diameter line of the circular ring frame 2. By setting the positioning component, by screwing the screw rod 10, the positioning head 12 is abutted against the inner wall of the water pipe, which can further improve the installation positioning accuracy and the installation convenience. Correspondingly, through the positioning component, the connection reliability between the device and the water pipe can be further increased

[0027] As a specific technical solution of this embodiment, the rib assembly 5 includes at least one annular rib 13 and multiple radial ribs 14 distributed in a ring with the center of the sealing plate 3 as the center. Obviously, the rib assembly 5 can also be two sets, respectively located on both sides of the sealing plate 3, to further increase the anti - deformation ability of the sealing plate 3. Obviously, the rib assembly 5 can also adopt other structural forms, such as grid - shaped or honeycomb - shaped, etc

[0028] As a further improved technical solution of this embodiment, a handle 15 is provided on one side of the circular ring frame 2 to facilitate the handling of the device and provide a gripping point during the insertion process.

[0029] As a further improved technical solution of this embodiment, a pressure connection head 16 is provided on the sealing plate 3. Through this pressure connection head 16, high-pressure water in the water pipe can be injected. Obviously, when the pressure connection head 16 is not needed, it can be blocked by a plug or a valve can be installed on the pressure connection head 16 for control. Whether the pressure connection head 16 needs to be used is specifically analyzed according to the water pipe pressure test section. For example, when there is a branch joint on the water pipe pressure test section, water can be injected through the branch joint at this time. If there is no branch joint on the water pipe pressure test section, water needs to be injected through the pressure connection head 16 at this time.

[0030] During use, the device is respectively carried to both ends of the water pipe pressure test section for water pipe sealing. During sealing, positioning is carried out by screwing the screw 10, and then the annular inflatable bag 4 is inflated through the air charging pipe 6. The annular inflatable bag 4 is preferably a high-pressure air bag and is filled with compressed air with sufficient pressure. An air compressor can be used for inflation to ensure the sealing effect. At the same time, the annular inflatable bag 4 can form a sufficient large frictional force with the inner wall of the water pipe. After the annular inflatable bag 4 is inflated, the water pipe is sealed, and then the pressure test can be carried out. In order to increase the frictional force, the contact surface between the annular inflatable bag 4 and the water pipe can be appropriately increased to provide the frictional force by increasing the contact area.

[0031] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present invention.

Claims

1. A device for pressure testing of large-diameter water conveyance pipelines, characterized in that: It includes a circular ring frame body (2) with a groove (1) on its outer wall, a sealing plate (3) fixedly connected to the circular ring frame body (2), a hollow annular inflatable airbag (4) embedded in the groove (1), and a rib assembly (5) fixedly connected to one side of the sealing plate (3) and fixedly connected to the circular ring frame body (2); an air charging pipe (6) is arranged on the annular inflatable airbag (4), a valve (7) is arranged on the air charging pipe (6), and an air charging joint (8) is arranged at the end of the air charging pipe (6).

2. The device for the pressure test of large-diameter water conveyance pipelines according to claim 1, wherein: It further includes multiple sets of positioning components evenly distributed in a ring shape on one side of the circular ring frame body (2). The positioning components include a positioning block (9) fixedly connected to the circular ring frame body (2), a screw rod (10) threadedly connected and passing through the positioning block (9), a handle rod (11) fixedly connected to one end of the screw rod (10) close to the center of the sealing plate (3), and a positioning head (12) hinged to the other end of the screw rod (10); the axis of the screw rod (10) coincides with the diameter line of the circular ring frame body (2).

3. The device for the pressure test of large-diameter water conveyance pipelines according to claim 1 or 2, characterized in that: The rib assembly (5) includes at least one annular rib (13) and multiple radial ribs (14) distributed in a ring shape with the center of the sealing plate (3).

4. The device for the pressure test of the large-diameter water conveyance pipeline according to claim 1 or 2, characterized in that: There are two sets of the rib assemblies (5), which are respectively located on both sides of the sealing plate (3).

5. The device for the pressure test of a large-diameter water conveyance pipeline according to claim 1 or 2, characterized in that: A handle (15) is arranged on one side of the circular ring frame body (2).

6. The device for the pressure test of the large-diameter water conveyance pipeline according to claim 1 or 2, characterized in that: A pressure connection head (16) is arranged on the sealing plate (3).

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