Pressure reduction and flow stabilization structure for water pumping test

Abstract

The utility model relates to the technical field of water pipe pressure reduction and flow stabilization in a water pumping test, and discloses a water pumping test pressure reduction and flow stabilization structure which comprises a water pipe, a limiting table, an overflow port, a communicating pipe, a culvert groove, a limiting cylinder and a butt joint hole. Through mutual cooperation of the water pipe, the limiting table, the overflow port, the communicating pipe, the culvert groove, the limiting cylinder, the butt-joint hole and the connecting rod assembly, when the water pressure in the water pipe exceeds the maximum limit and a spring cannot be balanced, the connecting rod drives the communicating pipe to deviate towards one side, and at the moment, the culvert groove, the overflow port and the butt-joint hole form a channel; water flow in front of the mounting plate can be drained in a split-flow mode, water pressure borne by the spring is reduced, and the valve element and the spring recover the water pressure and water flow adjusting capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipe decompression and flow stabilization in a water pumping test, in particular to a water pumping test decompression and flow stabilization structure. Background Art

[0002] A pressure stabilizing valve is a device used to stabilize pressure. It is usually used in water, gas and other pipelines. It can automatically adjust the pressure in the pipeline to keep the pressure at each node constant. The pressure stabilizing valve can effectively protect pipelines and valves and avoid hazards and failures caused by excessive or insufficient pressure. The principle of the pressure stabilizing valve is mainly to use the change of variable cross-section and flow rate to adjust the pressure. When the pressure of the water entering the pressure stabilizing valve changes, the cross-sectional area inside the valve will change, thereby achieving the purpose of stabilizing pressure and flow.

[0003] However, in actual use scenarios, the adjustment range of the existing pressure-stabilizing valve is certain. If the water inlet pressure changes too much, far exceeding the stable range, and the spring cannot be reset in a short time, the pressure-stabilizing valve will not be able to keep the water pressure constant. At this time, the pressure-stabilizing valve may fail, or affect the water flow to a certain extent. When the time line is extended, the flow-stabilizing valve may be damaged;

[0004] Therefore, when the water pressure exceeds the upper limit of the maximum threshold of the flow stabilizing valve for a long time, the problem of how to maintain the temperature flow of the flow stabilizing valve stable and avoid damage to the flow stabilizing valve needs to be solved urgently. Utility Model Content

[0005] In order to solve the technical problem that a water pipe flow stabilizing valve is easily damaged during a water pumping test, the utility model provides a water pumping test pressure reducing and flow stabilizing structure.

[0006] The utility model is implemented by the following technical scheme: a pumping test pressure reducing and stabilizing flow structure, comprising a water pipe, a limit platform, an overflow port, a connecting pipe, a culvert, a limit cylinder and a docking hole, wherein the limit platform is connected to the upper side of the water pipe, the limit cylinder is rotatably connected to the inside of the limit platform, the culvert is arranged inside the limit cylinder, the lower end of the culvert is fixedly connected to the connecting pipe, the upper end of the culvert is connected to the docking hole, the overflow port is through-opened on the upper side of the limit platform, the overflow port is matched with the docking hole, the outer side of the connecting pipe is provided with a connecting rod assembly for rotating the limit cylinder in the limit platform, the inner side of the water pipe is provided with a valve body assembly for maintaining a constant flow rate of water in the water pipe, and the two ends of the water pipe are respectively fixedly connected with a drainage docking port and a water inlet docking port.

[0007] As a further improvement of the above scheme, the connecting rod assembly includes a limiting sphere and a connecting rod, a sliding groove is provided inside the limiting sphere, the inner side of the sliding groove is slidingly connected to the connecting pipe, the limiting sphere is rotatably connected to the connecting rod, and a limiting bracket mechanism for limiting the connecting rod is provided at the end of the connecting rod opposite to the water flow direction.

[0008] As a further improvement of the above scheme,

[0009] When the connecting rod is in the initial position, the connecting pipe does not rotate, and the culvert, the docking hole and the overflow port do not form a passage state;

[0010] When the connecting rod leaves the initial position along the direction of the water flow under the push of the external force and does not reach the first position, the culvert, the docking hole and the overflow port still do not form a passage state;

[0011] When the connecting rod reaches the first position along the direction of water flow under the push of external force, the culvert, the docking hole and the overflow port form a passage state.

[0012] As a further improvement of the above solution, the limiting bracket mechanism includes a second fixing frame fixedly connected to the inner side of the water pipe, a limiting channel is provided on the second fixing frame, and the connecting rod is slidably connected to the inner side of the limiting channel.

[0013] As a further improvement of the above scheme, the valve body assembly includes a first fixing frame, an internal limiting cylinder and a mounting plate, the mounting plate is fixedly installed on the inner side of the water pipe, one side of the mounting plate is fixedly connected to the internal limiting cylinder, one side of the internal limiting cylinder is fixedly connected to the first fixing frame, the radius of the internal limiting cylinder is smaller than the radius of the water pipe, the inner side of the internal limiting cylinder is provided with a valve core assembly for throttling the water flow in the pipeline, and the outer side of the internal limiting cylinder is provided with a water outlet assembly for allowing the water to flow from the inner side of the internal limiting cylinder to the outer side.

[0014] As a further improvement of the above scheme, the valve core assembly includes a conical limit groove and a valve core, the conical limit groove is arranged inside the internal limit cylinder, the valve core is slidingly connected to the inner side of the conical limit groove, one end of the connecting rod is fixedly connected to the valve core, and one side of the valve core is provided with an elastic component for balancing the water pressure on the valve core.

[0015] As a further improvement of the above solution, the elastic component includes a spring located inside the internal limiting cylinder, one end of the spring is fixedly connected to one side of the valve core, and the other end of the spring is fixedly connected to the inner side of the internal limiting cylinder.

[0016] As a further improvement of the above solution, the water outlet hole assembly includes a plurality of water holes opened through the outside of the internal limiting cylinder, the plurality of water holes are distributed in a circular array, and the plurality of water holes are arranged in cooperation with the valve core.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model cooperates with each other through the water pipe, the limit platform, the overflow port, the connecting pipe, the culvert, the limit cylinder, the docking hole and the connecting rod assembly. When the water pressure in the water pipe exceeds the maximum limit, causing the spring to be unable to balance, the connecting rod drives the connecting pipe to deviate to one side. At this time, the culvert, the overflow port and the docking hole form a passage, which can help to divert and discharge the water flow in front of the installation plate, reduce the water pressure borne by the spring, and enable the valve core and the spring to restore the ability to regulate the water pressure and water flow.

[0019] 2. The utility model sets a limit cylinder, a culvert, a connecting pipe, an overflow port, a connecting rod assembly, and a valve body assembly to cooperate with each other. When the water pressure inside the water pipe is too high for a long time, the water flow can be discharged from the overflow port through the connecting pipe. This can avoid the phenomenon that the spring's elastic structure fails due to long-term compression, which helps to increase the service life of the flow-stabilizing valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A front view of a pumping test pressure-reducing and flow-stabilizing structure provided by the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 This is a first exploded schematic diagram of the valve body assembly and the connecting rod assembly in the utility model;

[0023] Figure 4 for Figure 3 Side view of.

[0024] Description of main symbols:

[0025] 1. Water pipe; 2. Drainage interface; 3. Water inlet interface; 4. Limiting platform; 5. Overflow port; 6. Internal limiting cylinder; 7. First fixed frame; 8. Conical limiting groove; 9. Spring; 10. Valve core; 11. Mounting plate; 12. Connecting pipe; 13. Limiting ball; 14. Second fixed frame; 15. Limiting cylinder; 16. Culvert; 17. Connecting rod; 18. Docking hole; 19. Water hole. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0027] Example:

[0028] Please combine Figure 1-Figure 4 A pumping test pressure reducing and stabilizing flow structure of the present embodiment comprises a water pipe 1, a limit platform 4, an overflow port 5, a connecting pipe 12, a culvert 16, a limit cylinder 15 and a docking hole 18. The limit platform 4 is connected to the upper side of the water pipe 1, the limit cylinder 15 is rotatably connected to the inside of the limit platform 4, the culvert 16 is arranged inside the limit cylinder 15, the inside of the limit platform 4 is in close contact with the limit cylinder 15, a sealing gasket is arranged at the place where the limit platform 4 is connected and intersected with the water pipe 1, and sealing oil is injected between the sealing gasket and the inside of the limit platform 4, the lower end of the culvert 16 is fixedly connected to the connecting pipe 12, and the upper end of the culvert 16 is connected to the docking hole 18, as shown in FIG. Figure 2 As shown, the culvert 16 in this embodiment is arc-shaped, the overflow port 5 is opened through the upper side of the limit platform 4, the overflow port 5 is arranged in coordination with the docking hole 18, a connecting rod assembly is arranged on the outer side of the connecting pipe 12 to enable the limit cylinder 15 to rotate in the limit platform 4, a valve body assembly is arranged on the inner side of the water pipe 1 to maintain a constant flow rate of water in the water pipe, and both ends of the water pipe 1 are fixedly connected with a drainage docking port 2 and a water inlet docking port 3 respectively.

[0029] Please combine Figure 3 As shown, the connecting rod assembly includes a limiting ball 13 and a connecting rod 17. A sliding groove is opened inside the limiting ball 13, and the inner side of the sliding groove is slidingly connected to the connecting pipe 12. The limiting ball 13 is rotatably connected to the connecting rod 17, and a limiting bracket mechanism for limiting the connecting rod 17 is provided at the end of the connecting rod 17 opposite to the water flow direction. By setting the limiting ball 13, the connecting pipe 12 can be pushed by the limiting ball 13, and the connecting pipe 12 can be kept swinging with the limiting cylinder 15 as the center.

[0030] When the connecting rod 17 is in the initial position, the connecting pipe 12 does not rotate, and the culvert 16, the docking hole 18 and the overflow port 5 do not form a passage state;

[0031] When the connecting rod 17 leaves the initial position along the direction of the water flow under the push of the external force and does not reach the first position, the culvert 16, the docking hole 18 and the overflow port 5 still do not form a passage state;

[0032] When the connecting rod 17 reaches the first position along the direction of water flow under the push of external force, the culvert 16, the docking hole 18 and the overflow port 5 form a passage state.

[0033] The limiting bracket mechanism comprises a second fixing bracket 14 fixedly connected to the inner side of the water pipe 1 , a limiting channel is provided on the second fixing bracket 14 , and a connecting rod 17 is slidably connected to the inner side of the limiting channel.

[0034] Please combine Figure 2 As shown, the valve body assembly includes a first fixing frame 7, an internal limiting cylinder 6 and a mounting plate 11. The mounting plate 11 is fixedly installed on the inner side of the water pipe 1. One side of the mounting plate 11 is fixedly connected to the internal limiting cylinder 6. One side of the internal limiting cylinder 6 is fixedly connected to the first fixing frame 7. The radius of the internal limiting cylinder 6 is smaller than the radius of the water pipe 1. The inner side of the internal limiting cylinder 6 is provided with a valve core assembly for throttling the water flow in the pipeline. The outer side of the internal limiting cylinder 6 is provided with a water outlet assembly for allowing the water to flow from the inner side of the internal limiting cylinder 6 to the outer side.

[0035] Please combine Figure 2 and Figure 3 As shown, the valve core assembly includes a conical limit groove 8 and a valve core 10. The valve core 10 is a conical structure. The conical limit groove 8 is arranged inside the internal limit cylinder 6. The valve core 10 is slidingly connected to the inner side of the conical limit groove 8. One end of the connecting rod 17 is fixedly connected to the valve core 10. An elastic component for balancing the water pressure on the valve core 10 is arranged on one side of the valve core 10.

[0036] Please combine Figure 2 As shown, the elastic component includes a spring 9 located inside the internal limiting cylinder 6 , one end of the spring 9 is fixedly connected to one side of the valve core 10 , and the other end of the spring 9 is fixedly connected to the inner side of the internal limiting cylinder 6 .

[0037] Please combine Figure 3 As shown, the water outlet hole assembly includes a plurality of water holes 19 which are opened through the outside of the internal limit tube 6, and the plurality of water holes 19 are distributed in a circular array. The plurality of water holes 19 are arranged in cooperation with the valve core 10. When the valve core 10 is close to the inner wall of the conical limit groove 8 near the water hole 19, the water hole 19 can be blocked.

[0038] The implementation principle of a pumping test pressure reducing and stabilizing flow structure in the embodiment of the present application is as follows: the user connects the water pipe 1 to the pipeline that needs to stabilize the flow through the water inlet interface 3. After the water flows into the water pipe 1, under the action of the water pressure, the valve core 10 moves backward along the conical limiting groove 8 and leaks out of the water hole 19. The water flows backward from the water hole 19, and the spring 9 is deformed and compressed by the water pressure to form a balance with the water pressure. At this time, the flow is stable. When a short-term flow fluctuation occurs in the water inlet upstream of the water pipe 1, causing the water pressure to be too high, the spring 9 adaptively adjusts and continues to compress backward. The space withdrawn backward in the conical limiting groove 8 is used to reduce and balance the increased water pressure in the front. At this time, the water pressure at the water hole 19 is still maintained The balance remains unchanged, the water flow speed through the water hole 19 remains unchanged, the connecting rod 17 moves backward following the valve core 10, driving the limiting ball 13 to move backward and rotate. At this time, the connecting pipe 12 rotates with the limiting cylinder 15 as the center, but the docking hole 18 and the water hole 19 do not overlap at this time. If the water pressure and water volume in front of the mounting plate 11 continue to increase, causing the spring 9 to have a maximum deformation, at this time the connecting rod 17 deviates to one side with the maximum displacement, the port docking hole 18 of the culvert 16 overlaps with the overflow port 5, forming a connected state, which can divert the water flow in the water pipe 1, and reduce the water pressure in the water pipe 1 by diversion. After the water pressure is reduced, the spring 9 returns to its original position and rebounds to maintain balance with the water pressure in the water pipe 1 again.

[0039] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pumping test pressure reduction and flow stabilization structure, characterized in that: The invention comprises a water pipe (1), a limiting platform (4), an overflow port (5), a connecting pipe (12), a culvert (16), a limiting cylinder (15) and a docking hole (18), wherein the limiting platform (4) is connected to the upper side of the water pipe (1), the limiting cylinder (15) is rotatably connected to the inside of the limiting platform (4), the culvert (16) is arranged inside the limiting cylinder (15), the lower end of the culvert (16) is fixedly connected to the connecting pipe (12), and the upper end of the culvert (16) is connected to the connecting pipe (12). The connecting pipe (12) is connected to the docking hole (18), the overflow port (5) is opened on the upper side of the limit platform (4), the overflow port (5) and the docking hole (18) are arranged in coordination, the outer side of the connecting pipe (12) is provided with a connecting rod assembly for rotating the limit cylinder (15) in the limit platform (4), the inner side of the water pipe (1) is provided with a valve body assembly for maintaining a constant flow rate of water in the water pipe, and the two ends of the water pipe (1) are respectively fixedly connected with a drainage docking port (2) and a water inlet docking port (3).

2. A pumping test pressure-reducing and flow-stabilizing structure as claimed in claim 1, characterized in that: The connecting rod assembly comprises a limiting sphere (13) and a connecting rod (17); a slide groove is provided inside the limiting sphere (13); the inner side of the slide groove is slidably connected to the connecting pipe (12); the limiting sphere (13) is rotatably connected to the connecting rod (17); and a limiting bracket mechanism for limiting the connecting rod (17) is provided at the end of the connecting rod (17) opposite to the water flow direction.

3. A pumping test pressure-reducing and flow-stabilizing structure as claimed in claim 2, characterized in that: When the connecting rod (17) is in the initial position, the connecting pipe (12) does not rotate, and the culvert (16), the docking hole (18) and the overflow port (5) do not form a passage state; When the connecting rod (17) leaves the initial position in the direction of the water flow under the push of an external force and does not reach the first position, the culvert (16), the docking hole (18) and the overflow port (5) still do not form a passage state; When the connecting rod (17) reaches the first position along the direction of water flow under the push of external force, the culvert (16), the docking hole (18) and the overflow port (5) form a passage state.

4. A pumping test pressure-reducing and flow-stabilizing structure as claimed in claim 2, characterized in that: The position-limiting bracket mechanism comprises a second fixing frame (14) fixedly connected to the inner side of the water pipe (1), a position-limiting channel is provided on the second fixing frame (14), and the connecting rod (17) is slidably connected to the inner side of the position-limiting channel.

5. A pumping test pressure-reducing and flow-stabilizing structure as claimed in claim 2, characterized in that: The valve body assembly comprises a first fixing frame (7), an internal limiting cylinder (6) and a mounting plate (11); the mounting plate (11) is fixedly mounted on the inner side of the water pipe (1); one side of the mounting plate (11) is fixedly connected to the internal limiting cylinder (6); one side of the internal limiting cylinder (6) is fixedly connected to the first fixing frame (7); the radius of the internal limiting cylinder (6) is smaller than the radius of the water pipe (1); a valve core assembly for throttling water flow in the pipeline is arranged on the inner side of the internal limiting cylinder (6); and a water outlet assembly for allowing water flow to flow out from the inner side of the internal limiting cylinder (6) to the outer side is arranged on the outer side of the internal limiting cylinder (6).

6. A pumping test pressure-reducing and flow-stabilizing structure as claimed in claim 5, characterized in that: The valve core assembly comprises a conical limiting groove (8) and a valve core (10), wherein the conical limiting groove (8) is arranged inside the internal limiting cylinder (6), the valve core (10) is slidably connected to the inner side of the conical limiting groove (8), one end of the connecting rod (17) is fixedly connected to the valve core (10), and one side of the valve core (10) is provided with an elastic component for balancing the water pressure on the valve core (10).

7. A pumping test pressure-reducing and flow-stabilizing structure as claimed in claim 6, characterized in that: The elastic component comprises a spring (9) located inside the internal limiting cylinder (6), one end of the spring (9) is fixedly connected to one side of the valve core (10), and the other end of the spring (9) is fixedly connected to the inner side of the internal limiting cylinder (6).

8. A pumping test pressure-reducing and flow-stabilizing structure as claimed in claim 6, characterized in that: The water outlet hole assembly comprises a plurality of water through holes (19) formed through the outside of the internal limiting cylinder (6), the plurality of water through holes (19) being distributed in a circular array, and the plurality of water through holes (19) being arranged in cooperation with the valve core (10).

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