Multi-head pressure distribution device for pumping energy storage unit pipeline pressing
By designing a multi-head pressure distribution device, the problems of cumbersome operation and error prone to occur in the traditional single-point pressure testing method are solved, and the pressure test of multiple pipelines is achieved simultaneously, which improves work efficiency and equipment stability.
Patent Information
- Application Number
- CN202421918191.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The traditional pumped storage unit pipeline compression testing method adopts single-point compression, which requires frequent replacement of the position of the compression tool, increasing the operator's labor intensity, and prone to human error.
A multi-head pressure distribution device is designed, including a pumped storage unit pipeline pressure assembly, a multi-head pressure distribution assembly and a pressure buffer shock absorbing assembly. Through the combination of U-shaped mount distribution rod and distributor pipeline, multiple points are simultaneously pressed or pressed one by one, combining hydraulic dampers and abutting balls to absorb vibrations caused by pressure changes.
The device can perform pressure testing on multiple pipelines in one operation, greatly improving work efficiency, increasing equipment flexibility and adaptability, and improving system stability and reliability.
Smart Images
Figure CN222894325U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pipeline pressure testing of pumped storage units, in particular to a multi-head pressure distribution device used for pipeline pressure testing of pumped storage units. Background Art
[0002] Pumped storage is an advanced and clean energy storage technology, which uses water as an energy storage medium to achieve the storage and management of electrical energy through the mutual conversion of electrical energy and potential energy. Pumped storage has the functions of peak regulation, frequency regulation, phase regulation, energy storage, system backup and black start, as well as technical advantages such as large capacity, multiple operating conditions, fast speed, high reliability and good economy. It plays a fundamental role in ensuring the safety of the power grid, promoting the consumption of new energy and improving the performance of the whole system, and is an important part of the energy Internet.
[0003] The traditional pressure test method for pumped storage unit pipelines usually adopts a single-point pressure test method, that is, only one pipeline can be pressure tested at a time. This method has the following main problems: the position of the pressure test tool needs to be changed frequently, which increases the labor intensity of the operator and is prone to human errors. Utility Model Content
[0004] The utility model aims to provide a multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit, so as to solve the problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a multi-head pressure distribution device for pressurizing the pipeline of a pumped storage unit, comprising:
[0006] The pipeline pressure-pressing assembly of the pumped storage unit includes a distributor pressure-pressing plate and a distribution pipe fitting in an annular array connected to the outer wall of the distributor pressure-pressing plate;
[0007] A multi-head pressure distribution assembly, comprising an inverted U-shaped distribution rod rotatably mounted on the top surface of the distributor pressure plate and a distributor pipe transversely penetrating and mounted at the bottom of both ends of the U-shaped distribution rod, each of the distributor pipes being sealed and connected to an adjacent distribution pipe fitting;
[0008] The pressure buffering and shock absorbing assembly comprises an extended connecting rod symmetrically mounted on the inner walls of both sides of the U-shaped erection distribution rod and a hydraulic damper respectively mounted transversely on the inner wall of each extended connecting rod, wherein the damping end of the hydraulic damper abuts against the outer wall of the peripheral side of the distributor pressure plate;
[0009] Among them, a rotating vertical rod is welded in the middle position of the inner top wall of the U-shaped distribution rod, and the bottom end of the rotating vertical rod is connected to the distributor pressure plate through a sealed bearing, so that the U-shaped distribution rod is rotated to the end of the distribution pipe fitting required for distribution and pressure and connected to the distributor pipe.
[0010] Preferably, a fixed support plate is fixedly installed in the middle of the bottom surface of the distributor pressure plate, and the sealed bearing is fixedly embedded in the fixed support plate. The fixed support plate and the sealed bearing jointly support the rotation of the rotating vertical rod.
[0011] Preferably, the edge of one side of the top surface of the fixed support plate is longitudinally connected to an edge upright plate, and a first locking bolt is laterally penetrated and connected to the outer wall of the edge upright plate, and the screw end of the first locking bolt is in dynamic contact with the outer wall of the rotating upright member.
[0012] Preferably, the two extending connecting rods are integrally connected to an ear plate at one opposite end, and each ear plate is connected to the distributor pressure plate via a second locking bolt.
[0013] Preferably, the bottom surfaces of the two extending connecting rods are longitudinally fixedly connected to a fixed vertical plate, and the tail end of the hydraulic damper is fixedly mounted on the inner wall of the fixed vertical plate.
[0014] In the preferred embodiment of the present invention, each of the hydraulic dampers has a rolling abutment ball embedded therein, and the abutment ball abuts against the peripheral outer wall of the distributor pressure plate by rolling and friction.
[0015] Preferably, the bottoms of both ends of the U-shaped distribution rod are provided with mounting holes for installing the distributor pipe, and a handle is welded at the middle position of the top surface of the U-shaped distribution rod.
[0016] Preferably, in this solution, a pressure gauge is connected to the interior of each distribution pipe.
[0017] Compared with the prior art, the technical effects and advantages of the utility model are as follows:
[0018] The multi-head pressure distribution device for pressurizing the pipeline of the pumped storage unit can perform pressure tests on multiple pipelines in one operation through the design of the multi-head pressure distribution component, which greatly improves the work efficiency. The multi-head pressure distribution component can realize pressure testing at multiple points at the same time or one by one through the combination of the U-shaped erection distribution rod and the distributor pipeline, which significantly improves the efficiency of the pressure test;
[0019] The rotating vertical rod is connected to the distributor pressure plate through a sealed bearing, so that the U-shaped erection distribution rod can rotate flexibly, increasing the flexibility and adaptability of the equipment. The first locking bolts on the fixed support plate and the edge vertical plate provide stable support, ensuring the stability of the rotating vertical rod during operation;
[0020] The hydraulic damper and abutment balls in the pressure buffer shock absorption assembly can effectively absorb the vibration caused by pressure changes, improving the stability and reliability of the system. The hydraulic damper and abutment balls ensure that the vibration generated during operation is effectively absorbed, improving the stability and durability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 It is a structural schematic diagram of the utility model;
[0023] Figure 2 It is a schematic diagram of the connection structure of the rotating upright rod and the fixed support plate of the utility model;
[0024] Figure 3 It is a structural schematic diagram of the U-shaped erection distribution rod of the utility model;
[0025] Figure 4 It is a structural schematic diagram of the hydraulic damper of the utility model.
[0026] Description of reference numerals:
[0027] In the figure: 1. Pumped storage unit pipeline pressure assembly; 2. Multi-head pressure distribution component; 3. Pressure buffer shock absorbing component; 4. Distributor pressure plate; 5. Distribution pipe fittings; 6. Pressure gauge; 7. U-shaped erection distribution rod; 8. Distributor pipeline; 9. Rotating vertical rod; 10. Extended connecting rod; 11. Handle; 12. Fixed support plate; 13. Sealed bearing; 14. Edge vertical plate; 15. First locking bolt; 16. Mounting hole member; 17. Ear plate member; 18. Second locking bolt; 19. Fixed vertical plate; 20. Hydraulic damper; 21. Abutment ball. DETAILED DESCRIPTION
[0028] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.
[0029] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.
[0030] This embodiment provides Figures 1 to 4 A multi-head pressure distribution device for pressurizing the pipeline of a pumped-storage unit is shown, comprising: a pumped-storage unit pipeline pressurizing assembly 1, a multi-head pressure distribution component 2, and a pressurizing buffer shock absorbing component 3.
[0031] In this embodiment, the pipeline pressure-testing assembly 1 of the pumped-storage unit includes a distributor pressure-testing plate 4 and a distribution pipe fitting 5 which is connected to the outer wall of the distributor pressure-testing plate 4 in an annular array; the pipeline pressure-testing assembly 1 of the pumped-storage unit serves as the main frame of the entire pressure-testing system, and is responsible for integrating other components, providing an installation platform for the multi-head pressure distribution assembly 2, the pressure-testing buffer and shock-absorbing assembly 3, and other related components, ensuring that the various components can work in coordination and realize the overall pressure-testing function. The distributor pressure-testing plate 4 serves as the base of the multi-head pressure distribution assembly 2, provides support for other components, and carries components such as the U-shaped distribution rod 7 and the fixed support plate 12, ensuring the stability and reliability of the entire device. The distribution pipe fitting 5 connects the pipeline of the pumped-storage unit with the multi-head pressure distribution assembly 2, realizes the pressure transmission from the distributor pressure-testing plate 4 to each pipeline to be tested, and ensures that the pressure can be evenly transmitted to each test point.
[0032] In this embodiment, the multi-head pressure distribution assembly 2 includes an inverted U-shaped distribution rod 7 rotatably mounted on the top surface of the distributor pressure plate 4 and a distributor pipe 8 transversely penetrating and installed at the bottom of both ends of the U-shaped distribution rod 7, and each distributor pipe 8 is sealed and connected to the adjacent distribution pipe 5;
[0033] In this embodiment, the U-shaped distribution rod 7 is the main structural member of the multi-head pressure distribution assembly 2, carrying the distributor pipe 8, and realizing rotation by rotating the vertical rod 9, so as to conveniently adjust the position of the distributor pipe 8 to meet the needs of different test points. The distributor pipe 8 transfers the pressure from the distributor pressure plate 4 to the pipeline to be tested, is installed on the U-shaped distribution rod 7 through the mounting hole 16, and is connected to the distribution pipe 5 to ensure that the pressure is accurately delivered to the designated test point.
[0034] In this embodiment, the pressure buffer shock absorbing assembly 3 includes an extension connecting rod 10 symmetrically installed on the inner walls of both sides of the U-shaped erection distribution rod 7 and a hydraulic damper 20 transversely installed on the inner wall of each extension connecting rod 10, and the damping end of the hydraulic damper 20 abuts against the outer wall of the distributor pressure plate 4; the extension connecting rod 10 connects other components of the pressure buffer shock absorbing assembly 3, supports the hydraulic damper 20, and is connected to the ear plate 17 to ensure that the hydraulic damper 20 can be correctly installed and play a shock absorbing role. The hydraulic damper 20 slows down the vibration generated when the U-shaped erection distribution rod 7 rotates, and contacts the outer wall of the distributor pressure plate 4 by abutting the ball 21, providing a damping effect, reducing the impact caused by rapid rotation, and improving the stability and durability of the system.
[0035] In this embodiment, a rotating vertical rod 9 is welded in the middle of the inner top wall of the U-shaped erection distribution rod 7, and the bottom end of the rotating vertical rod 9 is connected to the distributor pressure plate 4 through a sealed bearing 13, so that the U-shaped erection distribution rod 7 is rotated to the end of the distribution pipe 5 required for distribution and pressure is connected to the distributor pipe 8. The rotating vertical rod 9 connects the U-shaped erection distribution rod 7 and the distributor pressure plate 4, and the rotation of the U-shaped erection distribution rod 7 is realized through the sealed bearing 13, so that the U-shaped erection distribution rod 7 can rotate smoothly, thereby adjusting the position of the distributor pipe 8.
[0036] In this embodiment, a fixed support plate 12 is fixedly installed in the middle position of the bottom surface of the distributor pressure plate 4, and a sealed bearing 13 is fixedly embedded in the fixed support plate 12. The fixed support plate 12 and the sealed bearing 13 jointly support the rotation of the rotating vertical rod 9.
[0037] In this embodiment, an edge plate 14 is integrally connected to the edge of one side of the top surface of the fixed support plate 12 in the longitudinal direction, and a first locking bolt 15 is connected to the outer wall of the edge plate 14 in the transverse direction, and the screw end of the first locking bolt 15 is in dynamic contact with the outer wall of the rotating upright member 9. The first locking bolt 15 is used to adjust the tightness of the rotating upright member 9, and the rotation resistance of the rotating upright member 9 is adjusted by tightening or loosening to ensure that the U-shaped erection distribution rod 7 can remain stable when needed. The edge plate 14 is used to install the first locking bolt 15, providing an installation position for the first locking bolt 15 to ensure that the rotating upright member 9 can be reliably locked.
[0038] In this embodiment, the two extended connecting rods 10 are integrally connected with an ear plate 17 at the opposite ends, each ear plate 17 is connected to the distributor pressure plate 4 through a second locking bolt 18, the bottom surfaces of the two extended connecting rods 10 are longitudinally fixedly connected with a fixed vertical plate 19, the tail end of the hydraulic damper 20 is fixedly installed on the inner wall of the fixed vertical plate 19, and the damping end of each hydraulic damper 20 is rollingly embedded with abutment balls 21, and the abutment balls 21 roll and abut against the outer wall of the peripheral side of the distributor pressure plate 4. The ear plate 17 is used to connect the extended connecting rod 10 and the distributor pressure plate 4, and is connected to the distributor pressure plate 4 through the second locking bolt 18 to ensure the stable connection between the hydraulic damper 20 and the distributor pressure plate 4. The fixed vertical plate 19 is used to install the hydraulic damper 20, providing a stable installation position for the hydraulic damper 20, ensuring that the hydraulic damper 20 can work normally and play a shock absorbing role. The abutting balls 21 reduce the friction between the hydraulic damper 20 and the distributor pressure plate 4, and reduce the friction coefficient through rolling contact, thereby ensuring that the hydraulic damper 20 can function smoothly while reducing wear.
[0039] In this embodiment, the bottom of both ends of the U-shaped distribution rod 7 are provided with mounting holes 16 for installing the distributor pipe 8, and a handle 11 is welded in the middle of the top surface of the U-shaped distribution rod 7. The handle 11 is convenient for the operator to manually rotate the U-shaped distribution rod 7, provides a gripping point, is easy to operate, simplifies the operation process, and improves the operation efficiency. A pressure gauge 6 is connected to the inside of each distribution pipe 5. The pressure gauge 6 monitors the pressure changes during the pressure application process, displays the actual pressure value of each test point, and helps the operator monitor the pressure application status to ensure that the pressure application process meets safety standards.
[0040] Working principle:
[0041] The multi-head pressure distribution device for pressurizing the pipeline of a pumped-storage unit connects the pipeline pressurizing assembly 1 of the pumped-storage unit to the pipeline to be tested, ensures that all sealing components are in good condition to prevent pressure leakage, and installs a pressure gauge 6 on the distribution pipe 5 to monitor pressure changes.
[0042] Use the handle 11 to manually adjust the position of the U-shaped erection distribution rod 7 to align the distributor pipe 8 with the required distribution pipe fitting 5, adjust the tightness of the rotating vertical rod 9 by rotating the first locking bolt 15 to ensure that the U-shaped erection distribution rod 7 is stable and does not shake during use, and adjust the position of the hydraulic damper 20 to ensure that it can effectively absorb vibrations caused by pressure changes.
[0043] Start applying pressure to the system and observe the pressure gauge 6 to ensure that the pressure is stable and reaches the expected value. If necessary, adjust the position of the U-shaped mounting distribution rod 7 again to test different pipeline sections. If the test point needs to be changed, it can be achieved by rotating the U-shaped mounting distribution rod 7 and adjusting the first locking bolt 15.
[0044] After the test is completed, release the pressure, turn off the pressure source, check all test points for leaks or other abnormal conditions, and if necessary, perform maintenance or replace damaged parts.
[0045] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-head pressure distribution device for pressurizing pipelines of pumped storage units, characterized in that: include: A pumped storage unit pipeline pressure-pressing assembly (1) comprises a distributor pressure-pressing plate (4) and a distribution pipe member (5) in an annular array connected to the outer wall of the distributor pressure-pressing plate (4); A multi-head pressure distribution assembly (2) comprises an inverted U-shaped distribution rod (7) rotatably mounted on the top surface of a distributor pressure plate (4) and a distributor pipe (8) transversely penetrating and mounted at the bottom of both ends of the U-shaped distribution rod (7), each of the distributor pipes (8) being sealed and connected to an adjacent distribution pipe fitting (5); A pressure buffering and shock absorbing assembly (3) comprises an extended connecting rod (10) symmetrically mounted on the inner walls of both sides of a U-shaped erected distribution rod (7) and a hydraulic damper (20) transversely mounted on the inner wall of each extended connecting rod (10), wherein the damping end of the hydraulic damper (20) abuts against the outer wall of the peripheral side of the distributor pressure plate (4); A rotating vertical rod (9) is welded at the middle position of the inner top wall of the U-shaped distribution rod (7), and the bottom end of the rotating vertical rod (9) is connected to the distributor pressure plate (4) via a sealing bearing (13), so that the U-shaped distribution rod (7) is rotated to one end of the distribution pipe (5) required for distribution and pressure and connected to the distributor pipe (8).
2. A multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit according to claim 1, characterized in that: A fixed support plate (12) is fixedly mounted in the middle of the bottom surface of the distributor pressure plate (4), and the sealing bearing (13) is fixedly embedded in the fixed support plate (12). The fixed support plate (12) and the sealing bearing (13) jointly support the rotation of the rotating upright rod (9).
3. A multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit according to claim 2, characterized in that: An edge vertical plate (14) is integrally connected to one side edge of the top surface of the fixed support plate (12) in the longitudinal direction, and a first locking bolt (15) is connected to the outer wall of the edge vertical plate (14) in the transverse direction, and the screw end of the first locking bolt (15) is in dynamic contact with the outer wall of the rotating vertical rod (9).
4. A multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit according to claim 3, characterized in that: The two extending connecting rods (10) are integrally connected to an ear plate (17) at one opposite end, and each ear plate (17) is connected to the distributor pressure plate (4) via a second locking bolt (18).
5. A multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit according to claim 4, characterized in that: The bottom surfaces of the two extending connecting rods (10) are both longitudinally fixedly connected to a fixed vertical plate (19), and the tail end of the hydraulic damper (20) is fixedly mounted on the inner wall of the fixed vertical plate (19).
6. A multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit according to claim 5, characterized in that: The damping end of each hydraulic damper (20) is rolled with an abutment ball (21) embedded therein, and the abutment ball (21) abuts against the peripheral outer wall of the distributor pressure plate (4) through rolling friction.
7. A multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit according to claim 6, characterized in that: The bottoms of both ends of the U-shaped distribution rod (7) are provided with mounting holes (16) for mounting the distributor pipe (8), and a handle (11) is welded at the middle position of the top surface of the U-shaped distribution rod (7).
8. A multi-head pressure distribution device for pressurizing pipelines of a pumped storage unit according to claim 7, characterized in that: A pressure gauge (6) is connected to the interior of each distribution pipe (5).