Plugging device of water taking pipe
By designing the water intake pipe sealing device of the sealing body structure, pressure regulating component and water filling and drainage component, the problem of water intake pipes below the stagnant water level of the reservoir cannot be inspected or the control gate valve can be replaced, and safe sealing and convenient maintenance operations are achieved.
Patent Information
- Application Number
- CN202422664324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-11-01
AI Technical Summary
In water conservancy and hydropower projects, the water intake pipe located below the stagnant water level of the reservoir cannot be vented for maintenance or replaced, which poses safety hazards.
A sealing device for a water intake pipe is designed, including a sealing body structure, a pressure regulating component and a water filling and drainage component. The ups and downs of the sealing body structure are adjusted through the water filling and drainage component, and the water pressure balance is adjusted by the pressure regulating component to achieve the sealing of the water intake pipe inlet.
Temporary sealing of the water intake pipe inlet is achieved, which facilitates maintenance or replacement of control gate valves, improves transportation convenience, and can be reused multiple times.
Smart Images
Figure CN223204000U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of water conservancy and hydropower engineering, in particular to a blocking device for a water intake pipe. Background Art
[0002] In water conservancy and hydropower projects, a large number of water intake pipes have been in operation for many years and need to be emptied for maintenance or replacement of control gate valves. However, some water intake pipes are located below the dead water level of the reservoir and there are no water retaining facilities at the inlet. Therefore, they cannot be emptied for maintenance or replacement of control gate valves, which poses a safety hazard to the project. Utility Model Content
[0003] The technical problem to be solved by the utility model is: to provide a water intake pipe blocking device in view of the above-mentioned problems.
[0004] The technical solution adopted by the utility model is: a water intake pipe blocking device, comprising:
[0005] A sealing body structure having a sealed cavity inside, which can be inserted into the reservoir end of the water intake pipe to achieve sealing;
[0006] a pressure regulating assembly, provided on the blocking body structure, capable of adjusting the water pressure balance between the reservoir end of the water intake pipe and the interior of the water intake pipe when the blocking body structure blocks the water intake pipe;
[0007] A plurality of filling and drainage components are installed on the outer wall of the blocking body structure. The filling and drainage components can fill water into and drain water from the closed cavity to adjust the sinking and floating state of the blocking body structure in water.
[0008] Through the above-mentioned technical means, the filling and drainage components are used to fill water into the interior of the sealing body structure, so that the sealing device can sink to the inlet of the water intake pipe, and then the sealing body structure is inserted into the water intake pipe to seal the inlet, and the pressure regulating component is used to adjust the water pressure balance on the upstream and downstream sides of the sealing body structure, so that the sealing device can block water from the inlet of the water intake pipe, which is convenient for subsequent emptying and maintenance of the water intake pipe.
[0009] In some embodiments, the pressure regulating assembly includes a pressure-equalizing pipe and a pressure-equalizing pipe control valve. The pressure-equalizing pipe passes through the sealing body structure. The pressure-equalizing pipe is provided with the pressure-equalizing pipe control valve at the end in the same direction as the reservoir end of the water intake pipe. The pressure-equalizing pipe can be used to fill the interior of the water intake pipe with horizontal pressure.
[0010] In some embodiments, the filling and drainage assembly includes a filling and drainage pipe and a filling and drainage pipe control valve. A plurality of the filling and drainage pipes are arranged on the outer wall of the sealing body structure, and the inlet ends of the filling and drainage pipes are each provided with a filling and drainage pipe control valve.
[0011] In some embodiments, the inner wall of the blocking body structure is further provided with a plurality of stiffening ribs, and the stiffening ribs are distributed horizontally and vertically on the inner surface of the blocking body structure.
[0012] In some embodiments, a rubber water-stop sheet is adhered to the outer wall of the sealing structure.
[0013] In some embodiments, the blocking body structure includes a first panel and a second panel, the first panel is in a 1 / 4 spherical crown shape, and the second panel is in a 1 / 2 elliptical spherical crown shape. The first panel and the second panel cooperate to make the blocking body structure a double spherical crown structure.
[0014] In some embodiments, when the interior of the blocking body structure is not filled with water, the comprehensive average density is less than the density of water; when the interior of the blocking body structure is filled with water, the comprehensive average density is greater than the density of water.
[0015] Another technical solution adopted by the present invention is: an operating method of a water intake pipe blocking device, characterized in that it includes the following steps:
[0016] S1. Before sealing the inlet of the water intake pipe at the reservoir end, first drain the water in the sealing structure through the filling and drainage components, and then float the sealing device to the designated water area;
[0017] S2. When the inlet of the water intake pipe at the reservoir end needs to be blocked, the amount of water that meets the sinking requirements is injected into the blocking structure through the filling and drainage assembly;
[0018] S3. After the plugging device is lowered to the inlet of the water intake pipe, the plugging body structure is inserted into the water intake pipe, and the pressure regulating assembly is used to adjust the water pressure balance inside and outside the water intake pipe;
[0019] S4. Drain the water in the water intake pipe. The blocking device can block the pipe opening under the action of external water pressure. At this time, replace the control gate valve on the water intake pipe.
[0020] S5. After the control gate valve on the water intake pipe is replaced, water is filled into the water intake pipe using the pressure regulating assembly to balance the pressure on both sides of the plugging device;
[0021] S6. By using part of the filling and drainage components to inject gas into the interior of the blocking structure, the water inside the blocking structure is discharged through the remaining filling and drainage components. After a certain amount of water is discharged, the blocking device floats up and the recovery is completed.
[0022] The beneficial effects of the utility model are:
[0023] The plugging structure is controlled to sink by the filling and drainage components, and the plugging structure is inserted into the water intake pipe. The pressure regulating component is used to control the water pressure balance inside and outside the water intake pipe, which can temporarily block the water inlet of the water intake pipe, so as to facilitate the maintenance of the water intake pipe or replacement of the control gate valve on the water intake pipe. At the same time, a closed cavity is formed inside the plugging structure, which can be floated with the help of the filling and drainage components, improving the transportation convenience of the plugging device, and the entire device can also be reused many times. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural diagram of the water intake pipe blocked in this application.
[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of this application.
[0026] Description of reference numerals:
[0027] 1. Water intake pipe; 2. Sealing body structure; 3. Control gate valve; 4. First panel; 5. Second panel; 6. Stiffening ribs; 7. Rubber water stop; 8. Filling and drainage pipes; 9. Filling and drainage pipe control valve; 10. Equalizing pressure pipe; 11. Equalizing pressure pipe control valve.
[0028] This specification includes references to "one embodiment" or "an embodiment." The appearance of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. The particular features, structures, or characteristics may be combined in any suitable manner consistent with the present disclosure.
[0029] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.
[0030] “First,” “second,” etc. As used herein, these terms act as labels for the nouns that precede them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). DETAILED DESCRIPTION
[0031] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with specific embodiments.
[0032] Example 1:
[0033] The water intake pipe 1 is located below the dead water level of the reservoir and has no water retaining facilities. The inlet end of the water intake pipe 1 faces the reservoir, and a control gate valve 3 is provided at the outlet end of the water intake pipe 1.
[0034] Combine Figure 1 and Figure 2As shown, this embodiment is a sealing device for a water intake pipe, comprising a sealing body structure 2, a pressure regulating assembly and a plurality of filling and drainage assemblies. A closed cavity is provided inside the sealing body structure 2, and the sealing body structure 2 can be inserted into the reservoir end of the water intake pipe to achieve sealing. A pressure regulating assembly is provided on the sealing body structure 2, and the pressure regulating assembly can adjust the water pressure balance inside and outside the water intake pipe 1 when the sealing body structure 2 blocks the water intake pipe 1. A plurality of filling and drainage assemblies are installed on the outer wall of the sealing body structure 2, and the filling and drainage assemblies can fill and drain water into the closed cavity to adjust the sinking and floating state of the sealing body structure 2 in the water. At the same time, when the closed cavity of the sealing body structure 2 is filled with water, the sealing body structure 2 can at least partially be inserted into the water intake pipe 1 to block the water intake pipe 1 and achieve water blocking.
[0035] Furthermore, the blocking body structure 2 includes a first panel 4 and a second panel 5, which are connected and cooperate to form a closed cavity. The first panel 4 is in the shape of a 1 / 4 spherical crown, and the second panel 5 is in the shape of a 1 / 2 elliptical spherical crown. The connection between the first panel 4 and the second panel 5 makes the blocking body structure 2 have a double spherical crown structure, and a closed cavity is formed inside. The two ends of the pressure regulating component respectively pass through the first panel 4 and the second panel 5 and further extend to the outside of the two. Multiple filling and drainage components are installed on the outer wall of the first panel 4. Specifically, the first panel 4 is located on the upstream side, and the second panel 5 is located on the downstream side.
[0036] In some embodiments, the pressure regulating assembly includes a pressure-equalizing pipe 10 and a pressure-equalizing pipe control valve 11. The pressure-equalizing pipe 10 passes through the sealing body structure 2. The pressure-equalizing pipe 10 passes through the reservoir end inlet of the first panel 4 and is provided with a pressure-equalizing pipe control valve 11. The pressure-equalizing pipe 10 can be used to fill the interior of the water intake pipe 1 with horizontal pressure.
[0037] In some embodiments, the filling and drainage assembly includes a filling and drainage pipe 8 and a filling and drainage pipe control valve 9. Multiple filling and drainage pipes 8 are arranged on the outer wall of the first panel 4, and the inlet ends of the filling and drainage pipes 8 are each provided with a filling and drainage pipe control valve 9. Specifically, in this embodiment, four filling and drainage assemblies are used, and the filling and drainage pipes 8 can be used to fill and drain the interior of the plugging structure 2.
[0038] Furthermore, when the interior of the blocking body structure 2 is not filled with water, the comprehensive average density is less than the density of water. When the interior of the blocking body structure 2 is filled with water, the comprehensive average density is greater than the density of water.
[0039] In some embodiments, the inner walls of the first panel 4 and the second panel 5 are further provided with a plurality of stiffening ribs 6 , which are distributed horizontally and vertically on the inner surfaces of the first panel 4 and the second panel 5 , and can increase the strength of the first panel 4 and the second panel 5 .
[0040] In some embodiments, a rubber water-stop sheet 7 is adhered to the outer wall of the second panel 5 .
[0041] Example 2:
[0042] This embodiment is a method for operating a water intake pipe plugging device, comprising the following steps:
[0043] S1. Before sealing the inlet of the water intake pipe 1 at the reservoir end, first drain the water in the sealing body structure 2 through the filling and drainage assembly, and then float the sealing device to the designated water area.
[0044] S1.1. Before sealing the inlet of the water intake pipe 1, drain the water in the sealing structure 2 and close the filling and discharge pipe control valve 9. Since the comprehensive average density of the sealing structure 2 is less than the density of water, the sealing structure 2 is transported to the designated water area by floating.
[0045] S2. When the inlet at the reservoir end of the water intake pipe 1 needs to be blocked, an amount of water that meets the sinking requirements is injected into the blocking body structure 2 through the filling and drainage assembly.
[0046] S2.1. When the inlet of the water intake pipe 1 needs to be blocked, the filling and drainage pipe control valve 9 is opened, and after the amount of water that meets the sinking requirements is injected into the blocking body structure 2, the filling and drainage pipe control valve 9 is closed.
[0047] S3. After the blocking device is lowered to the inlet position of the water intake pipe 1, the blocking body structure 2 is inserted into the water intake pipe 1, and the water pressure balance inside and outside the water intake pipe 1 is adjusted using the pressure regulating assembly.
[0048] S3.1. After sinking the blocking structure 2 to the inlet position of the water intake pipe 1, plug the blocking structure 2 into the pipe opening of the water intake pipe 1 and close the equalizing pipe control valve 11.
[0049] S4. Drain the water in the water intake pipe 1. The blocking device can block the pipe opening of the water intake pipe 1 under the action of reservoir water pressure to prevent reservoir water from entering the water intake pipe 1. At this time, replace the control gate valve 3 on the water intake pipe 1.
[0050] S5. After the control gate valve 3 on the water intake pipe 1 is replaced, water is filled into the water intake pipe 1 using the pressure regulating assembly to balance the pressure on both sides of the upstream and downstream of the plugging device.
[0051] S5.1. After the control gate valve 3 on the water intake pipe 1 is replaced, close the control gate valve 3 on the water intake pipe 1, open the equalizing pipe control valve 11, and fill water into the water intake pipe 1 to balance the pressure on the upstream and downstream sides of the blocking body structure 2, making it easier to remove the blocking body structure 2.
[0052] S6. By using part of the filling and drainage components to inject gas into the interior of the blocking body structure 2, the water inside the blocking body structure 2 is discharged through the remaining filling and drainage components. After a certain amount of water is discharged, the blocking device floats up and the recovery is completed.
[0053] S6.1. After the pressure in the upstream and downstream of the blocking structure 2 is equalized, open the drain pipe control valve, select two filling and drainage pipes 8, and inject gas into the blocking structure 2. Under the action of the gas, the water in the blocking structure 2 is discharged through the other two filling and drainage pipes 8. After a certain amount of water is discharged, the blocking structure 2 begins to float up, and the recovery is completed.
[0054] The implementation principle of a blocking device for a water intake pipe is as follows:
[0055] The sealing structure 2 is filled with water using the filling and drainage pipe 8, causing it to sink. The sealing structure 2 is then inserted into the water intake pipe 1, and the pressure equalization pipe 10 is used to adjust the water pressure balance at both ends of the sealing structure 2. By temporarily blocking the inlet of the water intake pipe 1 with the double-spherical cap-shaped sealing structure 2, the problem of inspecting the water intake pipe 1 or replacing the control valve 3 is solved. Furthermore, the sealing structure 2 forms a sealed cavity inside, allowing it to float, improving its transportability and making the entire device reusable.
[0056] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A water intake pipe blocking device, characterized in that: include: A sealing body structure (2) is provided with a sealed cavity inside, and the sealing body structure (2) can be inserted into the reservoir end of the water intake pipe (1) to achieve sealing; a pressure regulating assembly, provided on the blocking body structure (2), capable of regulating the water pressure balance between the reservoir end of the water intake pipe (1) and the interior of the water intake pipe (1) when the blocking body structure (2) blocks the water intake pipe (1); A plurality of filling and drainage components are installed on the outer wall of the blocking body structure (2), and the filling and drainage components can fill water into and drain water from the closed cavity to adjust the sinking and floating state of the blocking body structure (2) in water.
2. A water intake pipe blocking device according to claim 1, characterized in that: The pressure regulating assembly comprises a pressure-equalizing pipe (10) and a pressure-equalizing pipe control valve (11); the pressure-equalizing pipe (10) passes through the sealing body structure (2); the pressure-equalizing pipe (10) is provided with the pressure-equalizing pipe control valve (11) at the end portion thereof in the same direction as the reservoir end of the water intake pipe (1); and the pressure-equalizing pipe (10) can be used to fill the interior of the water intake pipe (1) with horizontal pressure.
3. The water intake pipe blocking device according to claim 1, characterized in that: The filling and drainage assembly comprises a filling and drainage pipe (8) and a filling and drainage pipe control valve (9); a plurality of the filling and drainage pipes (8) are arranged on the outer wall of the blocking body structure (2); and the filling and drainage pipe control valve (9) is provided at the inlet end of each of the filling and drainage pipes (8).
4. The water intake pipe blocking device according to claim 1, characterized in that: The inner wall of the blocking body structure (2) is further provided with a plurality of stiffening ribs (6), and the stiffening ribs (6) are distributed in a horizontal and vertical manner on the inner surface of the blocking body structure (2).
5. The water intake pipe blocking device according to claim 1, characterized in that: A rubber water-stop sheet (7) is adhered to the outer wall of the blocking body structure (2).
6. The water intake pipe blocking device according to claim 1, characterized in that: The blocking body structure comprises a first panel (4) and a second panel (5); the first panel (4) is in the shape of a quarter spherical crown, and the second panel (5) is in the shape of a half elliptical spherical crown; the first panel (4) and the second panel (5) cooperate to make the blocking body structure (2) in the shape of a double spherical crown.
7. The water intake pipe blocking device according to claim 1, characterized in that: When the interior of the blocking body structure (2) is not filled with water, the comprehensive average density is less than the density of water; when the interior of the blocking body structure (2) is filled with water, the comprehensive average density is greater than the density of water.