River-crossing pipeline repairing assembly
By designing a repair component including cross-river pipeline pressure joints and connecting steel pipes, the rapid repair of pipeline misalignment is achieved using structures such as T-pipe and flange, the operation of pipeline misalignment repair in the prior art is difficult and costly. The problem has achieved convenient and economical repair results.
Patent Information
- Application Number
- CN202421123346.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The existing pipeline misalignment repair method is difficult and expensive to operate, especially the complex underwater welding project, which leads to an increase in repair costs.
Design a cross-river pipeline repair assembly, including a structurally symmetrical repair group, each group consisting of cross-river pipeline pressure joints and connecting steel pipes, and achieves rapid connection through T-pipe, trapezoidal clamping grooves, flange and sealing ring. and repair, avoid underwater welding, and use external repair methods to reduce operational difficulty and cost.
It realizes rapid and convenient repair of pipeline misalignment, reduces operational difficulty and repair costs, and avoids the complexity and high costs of underwater welding.
Smart Images
Figure CN222209400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline repair, in particular to a cross-river pipeline repair component. Background Art
[0002] Due to shipping and sand mining, pipelines at the bottom of the riverbed have been damaged and misaligned, which may cause the pipeline to be shut down. After multiple surveys and inspections of the inside of the pipeline, it was found that the pipelines that were forced to shut down had no collapse or rupture inside. The main reason was that such pipelines had been repaired unsuccessfully before, which eventually led to misalignment between pipelines. The current difficulty in repairing them has increased, so they have been shut down.
[0003] At present, the most common methods for repairing pipeline dislocation are as follows: 1. Using trenchless lining repair technology, lining fiber-reinforced plastic hose, avoiding underwater operations, the pipeline can withstand high pressure, and the construction time is short. 2. Welding repair after cofferdam at the disconnection point, but underwater welding engineering is complex and difficult, which undoubtedly increases the repair cost.
[0004] In summary, the two existing pipeline misalignment repair methods are difficult to operate and expensive, so it is particularly important to avoid underwater welding and solve the problem of achieving a pipeline repair structure that is easy to install and quickly constructed. Utility Model Content
[0005] In view of the above problems existing in the prior art, the technical problem to be solved by the utility model is that the current pipeline misalignment repair method is difficult to operate and has high cost.
[0006] In order to solve the above technical problems, the utility model discloses a cross-river pipeline repair component, including two groups of repair groups with symmetrical structures and connected to each other, each group of repair groups includes a cross-river pipeline pressure flange joint sleeved outside a pipeline wall and a connecting steel pipe, the connecting steel pipe is sleeved outside the pipeline wall, a T-tube concentrically arranged with the connecting steel pipe is arranged on one end of the connecting steel pipe, a trapezoidal clamping groove is arranged in the T-tube, the cross-river pipeline pressure flange joint includes a trapezoidal connecting sleeve inserted into the trapezoidal clamping groove and a flange plate, the flange plate is placed on the trapezoidal connecting sleeve Outside the connecting sleeve, a flange plate 2 is arranged on the outside of the T-tube and is aligned with the flange hole on the flange plate 1. More than one sealing ring 1 is arranged in the trapezoidal positioning groove and is sleeved on the outside of the pipe wall. The end face of the outermost sealing ring 1 is abutted against the end face of the trapezoidal connecting sleeve. A transition sleeve is welded on the outside of the other end of the connecting steel pipe. A flange plate 3 is arranged on the outside of the transition sleeve. The two flange plates 3 are locked by hexagon socket screws and locking nuts. A limiting groove is arranged on the outer end face of the flange plate 3, and a sealing ring 2 is placed between the two limiting grooves.
[0007] Preferably, in order to improve the overall strength of the connecting steel pipe, one or more reinforcing steel ribs are arranged in a ring shape on the outer side of the T-tube, one side of the reinforcing steel rib is connected to the second bottom surface of the flange, and the other side of the reinforcing steel rib is connected to the outer side surface of the connecting steel pipe.
[0008] Preferably, in order to further improve the strength of the connecting steel pipe, there are 24 reinforcing steel ribs in total, and the thickness of each reinforcing steel rib is 10 mm.
[0009] Preferably, in order to facilitate the subsequent hoisting of the connecting steel pipe, two hanging ears arranged at intervals are provided on the outside of the connecting steel pipe.
[0010] Preferably, in order to facilitate positioning, two limit blocks symmetrically arranged around the center line of the trapezoidal connecting sleeve are provided on one end face of the flange plate one, and a positioning groove cooperating with the limit blocks is provided on one end face of the flange plate two.
[0011] Preferably, in order to facilitate the subsequent crane to lift the cross-river pipeline flange joint, a second hanging ear is provided on the cross-river pipeline flange joint.
[0012] Preferably, in order to improve the anti-skid effect during installation, an anti-skid layer is arranged in the inner through hole of the trapezoidal connecting sleeve, and one or more trapezoidal anti-skid strips are arranged on the inner side of the anti-skid layer.
[0013] Compared with the prior art, the utility model has at least the following advantages: when the connection between two pipes in the river is misaligned and separated, a repair group can be respectively sleeved on the outside of the two pipes, and the repair group is composed of a river pipe flange joint and a connecting steel pipe in an external installation form, and the two connecting steel pipes are then connected to each other, so that the misalignment between the two pipes can be quickly repaired. The use of external repair method can further reduce the difficulty of operation, and no underwater welding is required, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of a cross-river pipeline repair assembly described in Example 1;
[0015] Figure 2 for Figure 1 The enlarged view of point B in the figure;
[0016] Figure 3 This is a front structural schematic diagram of the flange joint of the cross-river pipeline in this embodiment 1;
[0017] Figure 4 for Figure 3 Cross-section view in the AA direction;
[0018] Figure 5 is a cross-sectional view of the connecting steel pipe in this embodiment 1;
[0019] Figure 6 is a cross-sectional view of the connecting steel pipe in this embodiment 2;
[0020] Figure 7 This is a partial cross-sectional schematic diagram of the cross-river pipeline flange joint and the connecting steel pipe after assembly in Example 3;
[0021] Figure 8 This is a partial cross-sectional schematic diagram of the cross-river pipeline flange joint and the connecting steel pipe after assembly in Example 4;
[0022] Fig. 9 It is a partial cross-sectional schematic diagram of the cross-river pipeline flange joint and the connecting steel pipe after assembly in this embodiment 5.
[0023] In the figure, the cross-river pipeline compression flange joint 1, trapezoidal connecting sleeve 101, flange plate 1 102, connecting steel pipe 2, pipeline 3, T-tube 4, trapezoidal positioning groove 5, flange plate 2 6, sealing ring 1 7, transition sleeve 8, flange plate 3 9, hexagon socket screw 10, locking nut 11, limiting groove 12, sealing ring 2 13, reinforcing steel rib 14, ear 1 15, limiting block 16, positioning groove 17, ear 2 18, anti-skid layer 19, trapezoidal anti-skid strip 191, nut 20, screw 21. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] Embodiment 1:
[0028] See also Figure 1-5 The present embodiment discloses a cross-river pipeline repair component, including two repair groups with symmetrical structures and connected to each other, each repair group including a cross-river pipeline pressure flange joint 1 sleeved outside the pipe wall of a pipe 3 and a connecting steel pipe 2, the connecting steel pipe 2 is sleeved outside the pipe wall of the pipe 3, a T-shaped pipe 4 concentrically arranged with the connecting steel pipe 2 is arranged on one end of the connecting steel pipe 2, a trapezoidal clamping groove 5 is arranged in the T-shaped pipe 4, the cross-river pipeline pressure flange joint 1 includes a trapezoidal connecting sleeve 101 inserted into the trapezoidal clamping groove 5 and a flange 102, the flange 102 is placed outside the trapezoidal connecting sleeve 101, and the outer side of the T-shaped pipe 4 is provided with a flange hole aligned with the flange hole on the flange 102 A flange 2 6 is provided, and more than one sealing ring 1 7 is provided in the trapezoidal positioning groove 5 and is sleeved on the outside of the pipe wall of the pipeline 3. The end face of the outermost sealing ring 1 7 is abutted against the end face of the trapezoidal connecting sleeve 101. A transition sleeve 8 is welded to the outside of the other end of the connecting steel pipe 2, and a flange 3 9 is provided on the outside of the transition sleeve 8. The two flanges 3 9 are locked by hexagon socket screws 10 and locking nuts 11. A limiting groove 12 is provided on the outer end face of the flange 3 9, and a sealing ring 2 13 is placed between the two limiting grooves 12, and the flange hole on the flange 1 102 and the flange hole on the flange 2 6 are fixed together by screws 21 and nuts 20.
[0029] Preferably, in order to improve the overall strength of the connecting steel pipe 2, the outer side of the T-tube 4 is annularly provided with one or more reinforcing steel ribs 14, one side of the reinforcing steel rib 14 is connected to the bottom surface of the flange 2 6, and the other side of the reinforcing steel rib 14 is connected to the outer side surface of the connecting steel pipe 2. There are a total of twenty-four reinforcing steel ribs 14, and the thickness of each reinforcing steel rib 14 is 10 mm. In this embodiment, the overall strength of the connecting steel pipe 2 is ultimately improved by adding the reinforcing steel ribs 14.
[0030] The specific installation method of this structure is as follows: when the connection between the two pipes 3 in the river is dislocated and separated, a crane is used to transport the device into the river. The operator dives into the river and can respectively sleeve a group of the repair groups on the outside of the two pipes 3. First, sleeve the cross-river pipe pressure flange joint 1 on the outside of the pipe 3, pre-install multiple sealing rings 7 on the inner side of the T-tube 4, and also sleeve the connecting steel pipe 2. A group of the repair groups can be respectively sleeved on the outside of the two pipes 3. First, sleeve the cross-river pipe pressure flange joint 1, and ensure that the flange hole on the flange 10 is aligned with the flange hole on the flange 2 6, and then use the screw 21 and the nut 20 to lock it. The other pipe 3 is also installed in this way, and then the flange holes on the left and right flanges 3 9 are aligned, and locked by the hexagon socket screw 10 and the locking nut 11. The dislocation repair between the two pipes 3 is realized and the sealing is improved. Therefore, the present structural setting can realize the rapid repair of the dislocation between the two pipes 3, and the external repair method is adopted to further reduce the difficulty of operation, and there is no need for underwater welding, which reduces the cost.
[0031] Embodiment 2:
[0032] See also Figure 6 The present embodiment discloses a cross-river pipeline repair component. As a preferred embodiment, in order to facilitate the subsequent crane to lift the connecting steel pipe 2, two spaced-apart hanging ears 15 are provided on the outer side of the connecting steel pipe 2. In the present embodiment, by adding the hanging ears 15, it is convenient for the hook on the subsequent crane to directly pass through the hanging ears 15, so that the entire connecting steel pipe 2 can be lifted and transported.
[0033] Embodiment 3:
[0034] See also Figure 7 The present embodiment discloses a cross-river pipeline repair component. Preferably, in order to facilitate positioning, two stoppers 16 symmetrically arranged with the center line of the trapezoidal connecting sleeve 101 as the center are provided on one end face of the flange 102, and a positioning groove 17 cooperating with the stoppers 16 is provided on one end face of the flange 2 6. In the present embodiment, the stoppers 16 cooperate with the positioning grooves 17 to facilitate the rapid positioning and installation between the cross-river pipeline flange joint 1 and the connecting steel pipe 2 during installation. Since the cross-river pipeline flange joint and the connecting steel pipe are both cylindrical, the structures of other positions after the two are assembled are the same as those in the present embodiment. Figure 7 The structure is consistent.
[0035] Embodiment 4:
[0036] See also Figure 8The present embodiment discloses a cross-river pipeline repair component. As a preferred embodiment, in order to facilitate the subsequent crane to lift the cross-river pipeline flange joint 1, a second hanging ear 18 is provided on the cross-river pipeline flange joint 1. In the present embodiment, by adding the second hanging ear 18, it is convenient for the hook on the subsequent crane to directly pass through the second hanging ear 18, and the entire cross-river pipeline flange joint 1 is lifted for transportation.
[0037] Embodiment 5:
[0038] See also Fig. 9 , a cross-river pipeline repair component disclosed in this embodiment is preferably used to improve the anti-skid effect during installation. An anti-skid layer 19 is arranged in the inner through hole of the trapezoidal connecting sleeve 101, and one or more trapezoidal anti-skid strips 191 are arranged on the inner side of the anti-skid layer 19. The anti-skid layer 19 is made of an existing anti-skid material that can be purchased, and the trapezoidal anti-skid strips 191 are also made of an anti-skid material. At the same time, a layer of sand and gravel is pasted on the side of the trapezoidal anti-skid strip 191 that contacts the inside of the pipeline 3, so that when the trapezoidal connecting sleeve 101 is sleeved outside the pipeline 3, the friction with the outer wall of the pipeline 3 is improved, further improving the anti-skid effect, and avoiding the problem that the trapezoidal connecting sleeve 101 cannot be positioned when the pipeline is soaked in water for a long time and the surface is slippery due to moss.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A cross-river pipeline repair component, Features: The invention comprises two groups of repair groups with symmetrical structures and connected to each other, each group of repair groups comprises a cross-river pipeline flange joint (1) sleeved on the outside of a pipeline (3) wall and a connecting steel pipe (2), the connecting steel pipe (2) being sleeved on the outside of the pipeline (3) wall, a T-shaped pipe (4) arranged concentrically with the connecting steel pipe (2) being arranged on one end of the connecting steel pipe (2), a trapezoidal retaining groove (5) being arranged inside the T-shaped pipe (4), the cross-river pipeline flange joint (1) comprising a trapezoidal connecting sleeve (101) inserted into the trapezoidal retaining groove (5) and a flange plate (102), the flange plate (102) being arranged outside the trapezoidal connecting sleeve (101), the outer side of the T-shaped pipe (4) being arranged concentrically with the flange A flange plate 2 (6) is arranged to align with the flange hole on the plate 1 (102), and more than one sealing ring 1 (7) is arranged in the trapezoidal positioning groove (5) and is sleeved on the outside of the pipe wall of the pipeline (3). The end face of the outermost sealing ring 1 (7) abuts against the end face of the trapezoidal connecting sleeve (101). A transition sleeve (8) is welded on the outside of the other end of the connecting steel pipe (2), and a flange plate 3 (9) is arranged on the outside of the transition sleeve (8). The two flange plates 3 (9) are locked by means of hexagon socket screws (10) and locking nuts (11). A limiting groove (12) is arranged on the outer end face of the flange plate 3 (9), and a sealing ring 2 (13) is placed between the two limiting grooves (12).
2. A cross-river pipeline repair assembly according to claim 1, Features: The outer side of the T-shaped tube (4) is provided with one or more reinforcing steel ribs (14) in an annular shape, one side of the reinforcing steel rib (14) is connected to the bottom surface of the second flange (6), and the other side of the reinforcing steel rib (14) is connected to the outer side surface of the connecting steel tube (2).
3. A cross-river pipeline repair assembly according to claim 2, Features: There are a total of twenty-four reinforcing steel ribs (14), and the thickness of each reinforcing steel rib (14) is 10 mm.
4. A cross-river pipeline repair assembly according to claim 1, 2 or 3, Features: Two hanging ears (15) arranged at intervals are also provided on the outside of the connecting steel pipe (2).
5. A cross-river pipeline repair assembly according to claim 1, 2 or 3, Features: Two limit blocks (16) are symmetrically arranged with the center line of the trapezoidal connecting sleeve (101) as the center, and one end surface of the flange plate (6) is provided with a positioning groove (17) that cooperates with the limit blocks (16).
6. A cross-river pipeline repair assembly according to claim 1, 2 or 3, Features: A second hanging ear (18) is provided on the cross-river pipeline flange joint (1).
7. A cross-river pipeline repair assembly according to claim 1, 2 or 3, Features: An anti-slip layer (19) is arranged in the inner through hole of the trapezoidal connecting sleeve (101), and one or more trapezoidal anti-slip strips (191) are arranged on the inner side of the anti-slip layer (19).