Non-excavation non-stop pipeline repair kit
By constructing a bridge pipeline between the plugs, the problem of sewage backlog in leakage repair of underground sewage pipelines is solved, and a repair process without shutdown is achieved to ensure construction continuity and efficiency.
Patent Information
- Application Number
- CN202422569095.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The prior art requires the suspension of upstream and downstream pipeline operations when repairing leakage of underground sewage pipelines, resulting in upstream sewage backlog, especially in the rainy season, which is prone to secondary problems.
A non-excavation non-stop pipeline repair kit is designed. By constructing a bridged pipeline between the plugs, the upstream sewage is directly discharged to the downstream pipeline, and the flexible casing and bridged pipeline are used to achieve sewage crossing to avoid shutdown during the thermal curing and repair of the intermediate pipe section.
It achieves no need for shutdown during pipeline repair, avoids secondary impact, and ensures the continuity and efficiency of the construction process.
Smart Images
Figure CN223137362U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pipeline repair devices, and particularly relates to a trenchless non-stop drainage pipeline repair kit. Background Art
[0002] When a leak occurs in the underground sewage pipe network, a pull-in type steam-cured pipeline repair core material can be used to perform steam-cured repair on the faulty pipe section. However, before the repair construction of the faulty pipeline, it is necessary to block the upstream and downstream pipelines in advance and suspend the normal operation of the entire line of the faulty section. This leads to the problem of upstream sewage backlog, especially in the rainy season, which is extremely likely to cause secondary problems. Summary of the Utility Model
[0003] The main technical problem to be solved by the utility model is to provide a trenchless non-stop drainage pipeline repair kit. By constructing a bridging pipeline between the plugs, the upstream sewage can be directly discharged to the downstream pipeline across the middle pipe section, and the thermal curing repair process of the middle pipe section is not affected. The construction process does not require stopping the drainage and will not cause secondary impacts.
[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a trenchless non-stop drainage pipeline repair kit, including an upstream plug, a first discharge port, a working end plug, a second discharge port, a tail end plug, a third discharge port, a pull-in type steam-cured pipeline repair core material, and a bridging pipeline. The upstream plug is provided with a first discharge port, the working end plug is provided with a second discharge port, the tail end plug is provided with a third discharge port. The pull-in type steam-cured pipeline repair core material is laid between the working end plug and the tail end plug in the form of a flexible sleeve. The two ends of the flexible sleeve are respectively sealed and tightened on the outer walls of the working end plug and the tail end plug. The second discharge port and the third discharge port are connected by a bridging pipeline, and the bridging pipeline is arranged inside the flexible sleeve. The working end plug is provided with a high-temperature steam injection interface.
[0005] In a preferred embodiment of the utility model, the tail end plug is provided with a steam pressure detection interface, and a pressure gauge is externally connected to the steam pressure detection interface.
[0006] In a preferred embodiment of the utility model, a connecting pipeline is arranged between the first discharge port and the second discharge port.
[0007] In a preferred embodiment of the utility model, the upstream plug, the working end plug, and the tail end plug are all in the shape of a hollow cylinder. The inner walls of the upstream plug, the working end plug, and the tail end plug are all provided with partitions along the radial direction. The first discharge port, the second discharge port, the third discharge port, and the high-temperature steam injection interface are all arranged on the partitions.
[0008] In a preferred embodiment of the present utility model, a condensate discharge interface is provided at the connection of the partition plate with the upstream plug or the operation end plug or the tail end plug, and a pump is externally connected to the condensate discharge interface.
[0009] In a preferred embodiment of the present utility model, the outer wall of the bridging pipeline is wrapped with a heat insulation layer.
[0010] The beneficial effects of the present utility model are as follows: A trenchless non-stop drainage pipeline repair kit provided by the present utility model constructs a bridging pipeline between plugs, so that the upstream sewage can directly flow into the downstream pipeline across the middle pipe section, and the heat curing repair process of the middle pipe section is not affected. The construction process does not require drainage stoppage and will not cause secondary impacts. Description of the Drawings
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts, where:
[0012] Figure 1 is a structural diagram of a preferred embodiment of a trenchless non-stop drainage pipeline repair kit of the present utility model. Detailed Embodiments
[0013] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.
[0014] As Figure 1 shown, the embodiments of the present utility model include:
[0015] A trenchless non-stop drainage pipeline repair kit, including an upstream plug 1, a first discharge port 2, a working end plug 3, a second discharge port 4, a tail end plug 5, a third discharge port 6, a pull-in type steam heat-curing pipeline repair core material 7, and a bridging pipeline 8. The upstream plug 1 is provided with a first discharge port 2, the working end plug 3 is provided with a second discharge port 4, the tail end plug 5 is provided with a third discharge port 6. The pull-in type steam heat-curing pipeline repair core material 7 is laid in the form of a flexible sleeve 9 between the working end plug 3 and the tail end plug 5. Both ends 11 of the flexible sleeve 9 are respectively sealed and tightened on the outer walls of the working end plug 3 and the tail end plug 5. The second discharge port 4 and the third discharge port 6 are connected by the bridging pipeline 8, and the bridging pipeline 8 is arranged inside the flexible sleeve 9. The working end plug 3 is provided with a high-temperature steam injection interface 10.
[0016] Wherein, the tail end plug 5 is provided with a steam pressure detection interface 12, and a pressure gauge 13 is externally connected to the steam pressure detection interface 12.
[0017] Furthermore, a continuation pipeline 14 is arranged between the first discharge port 2 and the second discharge port 4.
[0018] Furthermore, the upstream plug 1, the working end plug 3, and the tail end plug 5 are all in the shape of a hollow cylinder. The inner walls of the upstream plug 1, the working end plug 3, and the tail end plug 5 are all provided with partitions 15 along the radial direction. The first discharge port 2, the second discharge port 4, the third discharge port 6, and the high-temperature steam injection interface 10 are all arranged on the partition 15.
[0019] Furthermore, the partition 15 is provided with a condensate water discharge interface 16 at the connection with the upstream plug 1 or the working end plug 3 or the tail end plug 5, and a pump 17 is externally connected to the condensate water discharge interface 16.
[0020] Furthermore, the outer wall of the bridging pipeline 8 is wrapped with a heat insulation layer.
[0021] When performing pipeline repair operations, first install the upstream plug 1 on the upstream side of the wellhead, and make the outer wall of the upstream plug 1 fit and seal with the inner wall of the pipeline.
[0022] Then pull the flexible sleeve 9 made of the pull-in type steam heat-curing pipeline repair core material 7 into the pipeline to be repaired, and then seal and fix the working end plug 3 and the tail end plug 5 at both ends 11 of the flexible sleeve 9. Then install the working end plug 3 and the tail end plug 5 at both ends 11 of the pipeline to be repaired. Both the working end plug 3 and the tail end plug 5 are attached to the inner wall of the pipeline to be repaired and sealed.
[0023] Finally, use the connecting pipe 14 to connect the first discharge port 2 and the second discharge port 4, connect the pump 17 to the condensate discharge interface 16, use the high-pressure steam equipment to connect the high-temperature steam injection interface 10, and use the pressure gauge 13 to connect the steam pressure detection interface 12 to complete the installation.
[0024] During the pipeline repair operation, high-temperature steam expands the flexible sleeve 9 and fits it against the inner wall of the pipeline to be repaired. During the high-temperature solidification process, the sewage in the pipeline does not need to be stopped, but enters the first discharge port 2 and flows out from the third discharge port 6 along the connecting pipe 14 and the bridging pipe 8.
[0025] During the thermal repair process, a large amount of condensed water will be generated on the pull-in steam heat curing pipe repair core material 7, and the condensed water will be pumped out from the condensed water discharge interface 16. At the same time, in order to reduce the generation of condensed water and reduce the impact of cold water on high-temperature steam, a thermal insulation layer can be added to the bridge pipe 8.
[0026] In summary, the utility model provides a trenchless and non-stop pipe repair kit, which constructs a bridging pipe 8 between the plugs, so that the upstream sewage can be directly discharged into the downstream pipeline across the middle pipe section. The thermal curing repair process of the middle pipe section is not affected, the construction process does not require stopping the discharge, and no secondary impact will be caused.
[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A trenchless non-stop drainage pipeline repair kit, characterized in that It includes an upstream plug, a first discharge port, a working end plug, a second discharge port, a tail end plug, a third discharge port, a pull-in type steam heat-curing pipeline repair core material, and a bridging pipeline. The upstream plug is provided with a first discharge port, the working end plug is provided with a second discharge port, the tail end plug is provided with a third discharge port. The pull-in type steam heat-curing pipeline repair core material is laid between the working end plug and the tail end plug in the form of a flexible sleeve. The two ends of the flexible sleeve are respectively sealed and tightened on the outer walls of the working end plug and the tail end plug. The second discharge port and the third discharge port are connected by a bridging pipeline, and the bridging pipeline is arranged inside the flexible sleeve. The working end plug is provided with a high-temperature steam injection interface.
2. The trenchless non-stop drainage pipeline repair kit according to claim 1, wherein, The tail end plug is provided with a steam pressure detection interface, and a pressure gauge is externally connected to the steam pressure detection interface.
3. The trenchless non-stop drainage pipeline repair kit according to claim 1, wherein A continuation pipeline is arranged between the first discharge port and the second discharge port.
4. The trenchless non-stop drainage pipeline repair kit according to claim 1, characterized in that, The upstream plug, the working end plug, and the tail end plug are all in the shape of a hollow cylinder. The inner walls of the upstream plug, the working end plug, and the tail end plug are all provided with partitions along the radial direction. The first discharge port, the second discharge port, the third discharge port, and the high-temperature steam injection interface are all arranged on the partitions.
5. The trenchless non-stop drainage pipeline repair kit according to claim 4, characterized in that, The partition is provided with a condensate discharge interface at the connection with the upstream plug or the working end plug or the tail end plug, and a pump is externally connected to the condensate discharge interface.
6. The trenchless non-stop drainage pipeline repair kit according to claim 1, wherein The outer wall of the bridging pipeline is wrapped with a heat insulation layer.