Quick connector for pumping energy storage unit pipeline pressing

Abstract

The utility model discloses a quick connector for pumping and pressing a pipeline of a pumped storage unit, which belongs to the technical field of pumped storage power stations and comprises a pumped storage unit assembly. The quick connector assembly comprises a branch pipeline connected to the outer wall of the hydraulic turbine set pipeline in a penetrating mode, a connecting pipeline connected with the branch pipeline, a first connector installed at the output end of the branch pipeline and a second connector installed at the input end of the connecting pipeline, and the first connector and the second connector are connected together; and the force storage locking component comprises L hinge locking rods which are symmetrically hinged to the outer wall of the peripheral side of the first connector, and when the second connector is installed in the first connector in a screwed mode, the two L hinge locking rods are clamped into the second connector to complete locking. According to the quick connector assembly, quick connection and disconnection can be achieved through the simple screwing action, the mounting and dismounting time is greatly shortened, and the mounting and dismounting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pumped storage power stations, in particular to a quick connector for pressurizing pipelines of pumped storage units. Background Art

[0002] A pumped-storage power station is a hydropower station that uses electricity from the grid during low load periods to pump water from the lower reservoir to the upper reservoir for storage. When the grid reaches peak load, the water is released back to the lower reservoir to generate electricity. It is also called a storage hydropower station.

[0003] In a pumped storage power station, in order to ensure the safe operation of the power station, it is often necessary to perform a pressure test on the pipeline system of the pumped storage unit to check for leaks and other problems. The traditional pipeline connection method has the following problems and disadvantages during pressure testing or daily maintenance: the existing pipeline connection method usually requires the use of special tools (such as wrenches) for installation and removal, the operation process is complicated, time-consuming, and cannot achieve fast installation and removal, and the efficiency is low. Utility Model Content

[0004] The utility model aims to provide a quick connector for pressurizing the pipeline of a pumped storage unit to solve the problems raised in the background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a quick connector for pressurizing the pipeline of a pumped storage unit, comprising:

[0006] A pumped storage unit assembly, including a turbine generator and connected turbine unit pipelines;

[0007] A quick connector assembly, comprising a branch pipe penetrating and connected to the outer wall of a pipe of a water turbine unit, a connecting pipe connected to the branch pipe, a first connector installed at an output end of the branch pipe, and a second connector installed at an input end of the connecting pipe, wherein the first connector and the second connector are connected together;

[0008] The force storage locking component includes L-hinged locking rods symmetrically hinged to the outer wall of the first joint. When the second joint is screwed and installed in the first joint, the two L-hinged locking rods are clamped into the second joint to complete the locking;

[0009] Among them, a limit locking ring is fixedly installed in the inner cavity of the first joint, and the end of the second joint is integrally connected with a limit locking tube inserted into the limit locking ring, the inner ring wall of the limit locking ring is symmetrically opened with locking openings, and the outer wall of the circumferential side of the limit locking tube is symmetrically welded with locking blocks for insertion from the locking openings. After the locking block is inserted into the locking opening, the second joint is rotated 90°, so that the extrusion spring in the inner cavity of the first joint and located behind the limit locking ring is squeezed on the locking block, so that the second joint and the first joint are locked together.

[0010] Preferably, in this solution, a connecting end tube is provided between the second joint and the limiting locking tube, and an installation chamber for the connecting end tube to be anastomosed and sealed is provided on one side of the limiting locking ring and in the inner cavity of the first joint.

[0011] Preferably, the extrusion spring is located in the inner cavity of the first joint and faces away from one end of the second joint. When the second joint is not screwed into the first joint, one end of the extrusion spring close to the second joint elastically abuts against the inner wall of the limiting locking ring.

[0012] Preferably, the limiting locking ring has limiting snap-in grooves symmetrically arranged on a side facing away from the second joint, and the two limiting snap-in grooves and the two locking openings are cross-distributed in a circular array. When the second joint is screwed into the first joint, the locking block is inserted from the locking opening, and the second joint is screwed so that the locking block is snapped into the limiting snap-in groove.

[0013] Preferably, in this solution, two connecting ear plates are symmetrically welded to the peripheral outer wall of the first joint close to the second joint, and the tail end of each L-hinged locking rod is hinged between two adjacent connecting ear plates through a hinge pin.

[0014] Preferably, in the present solution, a connection notch is provided at the tail end of each L-hinged locking rod, the hinge pin passes through the connection notch, and a torsion spring is sleeved in the connection notch and around the hinge pin.

[0015] Preferably, one end of the torsion spring is a first torsion end, and the other end is a second torsion end, the first torsion end elastically abuts against an outer wall of the first joint, and the second torsion end is clamped in a torsion slot of the L-hinged locking rod.

[0016] Preferably, in the present solution, one end of the L-hinged locking rod away from the connecting ear plate is provided as a locking card end head, and the peripheral outer wall of the second joint is symmetrically provided with locking grooves for inserting the locking card end head.

[0017] In this solution, the two locking grooves are respectively aligned with the two locking blocks, and when the second joint is rotated 90°, the locking clamp end is inserted into the locking groove under the elastic force of the torsion spring. At the same time, the locking block is clamped into the limit clamping groove and squeezed by the squeezing spring, so as to achieve double locking.

[0018] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0019] The quick connector for pressurizing the pipeline of the pumped storage unit can achieve quick connection and disconnection through a twisting action, greatly improving work efficiency. Compared with the traditional connection method, it does not require complicated tools or long manual operation; the quick connector assembly can achieve quick connection and disconnection through a simple twisting action, greatly shortening the installation and disassembly time. Compared with the existing method that requires the use of tools or long manual operation to complete the connection, this technical solution significantly improves efficiency.

[0020] The force-storage locking component uses a double locking mechanism of an extrusion spring and an L-hinged locking rod to ensure that the connection remains stable even under high pressure and vibration environments. Compared with the existing technology that relies on only a single locking structure, this technical solution provides higher reliability and durability; the double locking of the extrusion spring and the L-hinged locking rod ensures the stability and reliability of the connection. Compared with a single locking structure, this technical solution is less likely to loosen under high pressure and vibration environments;

[0021] The precise fit of the locking block and the locking port, combined with the pressure of the extrusion spring, ensures the sealing of the joint. Compared with the prior art that is prone to leakage problems, this technical solution performs better in terms of sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure in which the first joint and the second joint of the utility model are locked together;

[0025] Figure 3 This is a schematic diagram of the installation state of the limit locking ring of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the first connector and the second connector of the utility model in a disassembled state;

[0027] Figure 5 This is a schematic diagram of the structure of the second joint of the utility model after rotating 90°;

[0028] Figure 6 This is a schematic diagram of the structure of the limit locking ring of the utility model;

[0029] Figure 7 It is a structural schematic diagram of the L-hinged locking rod of the utility model.

[0030] Description of reference numerals:

[0031] In the figure: 1. pumped storage unit assembly; 2. quick connector assembly; 3. turbine generator; 4. turbine unit pipeline; 5. branch pipeline; 6. connecting pipeline; 7. first joint; 8. second joint; 9. screw end; 10. limit locking ring; 11. installation chamber; 12. connecting end pipe; 13. limit locking pipe; 14. extrusion spring; 15. connecting ear plate; 16. L hinged locking rod; 17. locking groove; 18. locking block; 19. locking opening; 20. limit clamping groove; 21. connecting notch; 22. hinge pin; 23. torsion spring; 24. first torque end; 25. second torque end; 26. torque clamping groove; 27. locking clamping end. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] This embodiment provides Figures 1 to 7 A quick connector for pressurizing a pipeline of a pumped storage unit is shown, comprising: a pumped storage unit assembly 1, a quick connector assembly 2, and a force storage locking component;

[0035] In this embodiment, the pumped storage unit assembly 1 includes a turbine generator 3 and a connected turbine unit pipeline 4; the pumped storage unit assembly 1, as the core component of the entire system, includes the turbine generator 3 and the turbine unit pipeline 4, provides a water-to-electricity conversion function, converts the potential energy of water into electrical energy, realizes energy storage and conversion, and improves the peak-shaving capacity of the power grid. The turbine generator 3 converts the energy of the water flow into mechanical energy, and then into electrical energy to achieve energy conversion. The turbine unit pipeline 4 transports water flow, connects the turbine generator 3 and other components, and ensures smooth water flow.

[0036] In this embodiment, the quick connector assembly 2 includes a branch pipe 5 connected to the outer wall of the turbine unit pipeline 4, a connecting pipe 6 connected to the branch pipe 5, a first joint 7 installed at the output end of the branch pipe 5, and a second joint 8 installed at the input end of the connecting pipe 6, and the first joint 7 and the second joint 8 are connected together; the quick connector assembly 2 connects the pumped storage unit assembly 1 with the key components of other pipeline systems to achieve rapid installation and disassembly of pipeline connections, facilitate maintenance and inspection, reduce downtime, and improve maintenance efficiency. The branch pipe 5 divides the water flow from the turbine unit pipeline 4, which is used for the quick connector assembly 2, provides a water flow access point, and facilitates the installation of the quick connector assembly 2. The connecting pipe 6 connects the branch pipe 5 and other parts of the quick connector assembly 2 to ensure smooth water flow and achieve effective transmission of the water flow. The first joint 7 is installed at the output end of the branch pipe 5, is a part of the quick connector assembly 2, and cooperates with the second joint 8 to form a sealed connection to achieve a fast and reliable connection. A screwing end 9 is provided on the outer wall around the tail end of the second joint 8, and the outer wall of the screwing end 9 has an anti-slip pattern to facilitate the screwing operation of the second joint 8.

[0037] In this embodiment, the force storage locking component includes an L-hinged locking rod 16 symmetrically hinged on the outer wall of the first joint 7. When the second joint 8 is screwed and installed in the first joint 7, the two L-hinged locking rods 16 are clamped into the second joint 8 to complete the locking; the L-hinged locking rod 16 is symmetrically hinged on the outer wall of the first joint 7. When the second joint 8 is tightened, the L-hinged locking rod 16 is clamped into the locking groove 17 in the second joint 8 to achieve secondary locking, thereby improving the stability of the connection.

[0038] In this embodiment, a limited locking ring 10 is fixedly installed in the inner cavity of the first joint 7, and a limited locking tube 13 inserted into the limited locking ring 10 is integrally connected to the end of the second joint 8. The inner ring wall of the limited locking ring 10 is symmetrically provided with a lock opening 19, and a lock block 18 for inserting from the lock opening 19 is symmetrically welded on the outer wall of the circumference of the limited locking tube 13. After the lock block 18 is inserted into the lock opening 19, the second joint 8 is rotated 90°, so that the extrusion spring 14 in the inner cavity of the first joint 7 and located behind the limited locking ring 10 is squeezed on the lock block 18, so that the second joint 8 and the first joint 7 are locked together. The limited locking tube 13 is installed on the second joint 8 and cooperates with the limited locking ring 10 to achieve locking and enhance the reliability of the connection. The limited locking ring 10 is fixed inside the first joint 7 and cooperates with the limited locking tube 13 to form a locking structure to prevent the second joint 8 from loosening. The lock block 18 is symmetrically welded on the outer wall of the limit locking tube 13, and inserted into the lock opening 19 of the limit locking ring 10 to achieve the initial locking and form a stable initial locking state. The lock opening 19 is opened on the inner wall of the limit locking ring 10 for the lock block 18 to be inserted to achieve the initial locking.

[0039] In this embodiment, a connecting end tube 12 is further provided between the second joint 8 and the limiting locking tube 13, and an installation chamber 11 for the connecting end tube 12 to be fitted and sealed is provided on one side of the limiting locking ring 10 and in the inner cavity of the first joint 7. The installation chamber 11 is designed in the first joint 7 to accommodate the connecting end tube 12 and ensure the tightness of the connection.

[0040] In this embodiment, the extrusion spring 14 is located in the inner cavity of the first joint 7 and faces away from one end of the second joint 8. When the second joint 8 is not screwed into the first joint 7, one end of the extrusion spring 14 close to the second joint 8 elastically abuts against the inner wall of the limit locking ring 10. The extrusion spring 14 is installed in the first joint 7 and located behind the limit locking ring 10. When the second joint 8 is tightened, it provides additional pressure to lock and enhance the locking effect.

[0041] In this embodiment, the limiting clamping groove 20 is symmetrically provided on the side of the limiting locking ring 10 facing away from the second joint 8, and the two limiting clamping grooves 20 and the two locking openings 19 are cross-distributed in a ring array. When the second joint 8 is screwed into the first joint 7, the locking block 18 is inserted from the locking opening 19, and the second joint 8 is screwed so that the locking block 18 is clamped into the limiting clamping groove 20. The limiting clamping groove 20 is provided on the side of the limiting locking ring 10 facing away from the second joint 8. When the second joint 8 is further tightened, the locking block 18 is clamped into this groove to achieve final locking and improve the connection stability.

[0042] In this embodiment, two connecting ear plates 15 are symmetrically welded to the outer wall of the peripheral side of the first joint 7 near the second joint 8, and the tail end of each L-hinged locking rod 16 is hinged between two adjacent connecting ear plates 15 through a hinge pin 22. The connecting ear plates 15 are symmetrically welded to the outer wall of the first joint 7, and are used to hinge the L-hinged locking rod 16 to support the movement of the L-hinged locking rod 16.

[0043] In this embodiment, a connection notch 21 is formed at the rear end of each L-hinged locking rod 16 , a hinge pin 22 passes through the connection notch 21 , and a torsion spring 23 is sleeved in the connection notch 21 and around the hinge pin 22 .

[0044] In this embodiment, one end of the torsion spring 23 is a first torsion end 24, and the other end is a second torsion end 25. The first torsion end 24 elastically abuts against the outer wall of the first joint 7, and the second torsion end 25 is clamped in the torsion clamping groove 26 of the L hinged locking rod 16. The first torsion end 24 and the second torsion end 25 refer to the two ends of the torsion spring 23 respectively. The first torsion end 24 abuts against the outer wall of the first joint 7, and the second torsion end 25 is clamped in the torsion clamping groove 26 of the L hinged locking rod 16, ensuring that the torsion spring 23 is correctly installed and functions.

[0045] In this embodiment, the end of the L-hinged locking rod 16 away from the connecting ear plate 15 is set as a locking card end 27, and the outer wall of the peripheral side of the second joint 8 is symmetrically provided with a locking groove 17 for the locking card end 27 to be inserted. The locking groove 17 is symmetrically provided on the outer wall of the second joint 8, and is used to receive the locking card end 27 of the L-hinged locking rod 16 to achieve secondary locking. The locking card end 27 is set at the end of the L-hinged locking rod 16 away from the connecting ear plate 15, and is inserted into the locking groove 17 of the second joint 8 to achieve secondary locking and increase the stability of the connection.

[0046] In this embodiment, the two locking grooves 17 are aligned with the two locking blocks 18, and after the second joint 8 rotates 90°, the locking clamping end 27 is inserted into the locking groove 17 under the elastic force of the torsion spring 23. At the same time, the locking block 18 is clamped into the limit clamping groove 20 and squeezed by the squeezing spring 14 to achieve double locking. The torsion spring 23 is installed around the hinge pin 22 to provide the elastic force required for the movement of the L hinged locking rod 16, ensuring that the L hinged locking rod 16 is reliably clamped into the locking groove 17.

[0047] Working principle:

[0048] In the quick connector for pressurizing the pipeline of the pumped storage unit, the first connector 7 and the second connector 8 are in a separated state, the L-hinged locking rod 16 is in an unlocked position and is held in an appropriate position by the torsion spring 23, the extrusion spring 14 is in a relaxed state, and the limit locking tube 13 is not fully inserted into the limit locking ring 10.

[0049] Align the second joint 8 with the first joint 7, and insert the limiting locking tube 13 into the limiting locking ring 10 until the locking block 18 is aligned with the locking opening 19, so that the locking block 18 enters the limiting locking ring 10 through the locking opening 19, and screw the second joint 8 clockwise (or counterclockwise) until the locking block 18 is snapped into the limiting snap-in groove 20. At this time, the extrusion spring 14 is compressed to generate a pre-tightening force to ensure the stability of the connection.

[0050] After the second joint 8 is rotated to 90°, the locking block 18 is clamped in the limiting clamping groove 20, and at the same time, the locking clamping end 27 on the L-hinged locking rod 16 enters the locking groove 17 of the second joint 8 to achieve secondary locking.

[0051] After the locking block 18 enters the limit locking ring 10 through the locking opening 19, the extrusion spring 14 is compressed to generate a pre-tightening force to ensure the stability of the connection. The L-hinged locking rod 16 is hinged to the connecting ear plate 15 through the hinge pin 22. When the second joint 8 is tightened 90°, the locking card end 27 is snapped into the locking groove 17 under the action of the torsion spring 23 to achieve secondary locking. The L-hinged locking rod 16 is snapped into the locking groove 17 of the second joint 8 to form a stable locking state to prevent accidental loosening.

[0052] Manually pry open the L-hinged locking rod 16 to disengage it from the locking groove 17 of the second joint 8, and at the same time, rotate the second joint 8 counterclockwise (or clockwise) to allow the locking block 18 to withdraw from the limiting latching groove 20, and continue to rotate the second joint 8 counterclockwise to allow the locking block 18 to be pulled out of the locking opening 19 until it is completely withdrawn from the first joint 7, thereby completing the disassembly and separation of the first joint 7 and the second joint 8.

[0053] 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".

[0054] 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 quick connector for pressurizing the pipeline of a pumped storage unit, characterized in that: include: A pumped storage unit assembly (1) comprises a hydro-turbine generator (3) and a connected hydro-turbine unit pipeline (4); A quick connector assembly (2) comprises a branch pipe (5) penetrating and connected to the outer wall of a turbine unit pipe (4), a connecting pipe (6) connected to the branch pipe (5), a first connector (7) installed at the output end of the branch pipe (5), and a second connector (8) installed at the input end of the connecting pipe (6), wherein the first connector (7) and the second connector (8) are connected together; The force storage locking component comprises an L-hinged locking rod (16) symmetrically hinged on the outer wall of the first joint (7), and when the second joint (8) is screwed and installed in the first joint (7), the two L-hinged locking rods (16) are clamped into the second joint (8) to complete the locking; A limit locking ring (10) is fixedly installed in the inner cavity of the first joint (7), and a limit locking tube (13) inserted into the limit locking ring (10) is integrally connected to the end of the second joint (8), and the inner ring wall of the limit locking ring (10) is symmetrically provided with locking openings (19), and the outer wall of the circumferential side of the limit locking tube (13) is symmetrically welded with locking blocks (18) for insertion from the locking openings (19). After the locking blocks (18) are inserted into the locking openings (19), the second joint (8) is rotated 90 degrees, so that the extrusion spring (14) in the inner cavity of the first joint (7) and located behind the limit locking ring (10) is squeezed on the locking block (18), so that the second joint (8) and the first joint (7) are locked together.

2. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 1, characterized in that: A connecting end tube (12) is also provided between the second joint (8) and the limiting locking tube (13), and an installation chamber (11) for the connecting end tube (12) to be fitted and sealed is provided on one side of the limiting locking ring (10) and in the inner cavity of the first joint (7).

3. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 2, characterized in that: The extrusion spring (14) is located in the inner cavity of the first joint (7) and faces away from one end of the second joint (8); when the second joint (8) is not screwed into the first joint (7), one end of the extrusion spring (14) close to the second joint (8) elastically abuts against the inner wall of the limiting locking ring (10).

4. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 3, characterized in that: The limiting locking ring (10) is symmetrically provided with a limiting snap-fit ​​groove (20) on a side surface facing away from the second joint (8); the two limiting snap-fit ​​grooves (20) and the two locking openings (19) are cross-distributed in a ring array; when the second joint (8) is screwed into the first joint (7), the locking block (18) is inserted into the locking opening (19), and the second joint (8) is screwed so that the locking block (18) is snap-fitted into the limiting snap-fit ​​groove (20).

5. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 4, characterized in that: Two connecting ear plates (15) are symmetrically welded to the peripheral outer wall of the first joint (7) close to the second joint (8), and the tail end of each L-hinged locking rod (16) is hinged between two adjacent connecting ear plates (15) via a hinge pin (22).

6. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 5, characterized in that: A connection notch (21) is provided at the rear end of each L-hinged locking rod (16), the hinge pin (22) passes through the connection notch (21), and a torsion spring (23) is sleeved in the connection notch (21) and around the hinge pin (22).

7. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 6, characterized in that: One end of the torsion spring (23) is a first torsion end (24), and the other end is a second torsion end (25); the first torsion end (24) elastically abuts against the outer wall of the first joint (7), and the second torsion end (25) is clamped in a torsion clamping groove (26) of the L-hinged locking rod (16).

8. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 7, characterized in that: One end of the L-hinged locking rod (16) away from the connecting ear plate (15) is arranged as a locking clamping end head (27), and a locking groove (17) for inserting the locking clamping end head (27) is symmetrically provided on the peripheral outer wall of the second joint (8).

9. A quick connector for pressurizing the pipeline of a pumped storage unit according to claim 8, characterized in that: The two locking grooves (17) are respectively aligned with the two locking blocks (18), and when the second joint (8) is rotated 90 degrees, the locking card end (27) is inserted into the locking groove (17) under the elastic force of the torsion spring (23).

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