Erosion-corrosion-resistant throttle valve

Abstract

The utility model discloses an erosion corrosion resistant throttle valve, which relates to the technical field of throttle valves and comprises a throttle valve body, one side of the throttle valve body is fixedly connected with a water inlet pipe, one side of the throttle valve body is fixedly connected with a water outlet pipe, and the inside of the water inlet pipe is fixedly connected with a second slow flow pipe. One side of the second flow slowing pipe is fixedly connected with a first flow slowing pipe, and the flow slowing device has the advantages that through mutual matching of the first flow slowing pipe and the first flow slowing plate, flowing media can be preliminarily buffered, so that the certain flow speed is reduced, the impact force on the third flow slowing plate is reduced, and the flow slowing effect is improved. And through mutual cooperation of a second flow slowing pipe, a flow slowing groove and a second flow slowing plate, a flowing medium can be further shunted and buffered, so that the impact force of the medium on the inner walls of the water inlet pipe, the throttling valve body and the water outlet pipe is reduced, and the service life of the erosion-corrosion-resistant throttling valve is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of throttle valve technology, specifically to a throttle valve resistant to erosion and corrosion. Background Technology

[0002] A throttle valve is a valve that controls fluid flow by changing the throttling cross-section or throttling length. A throttle valve and a check valve connected in parallel can be combined to form a check throttle valve. Throttling valves and check throttle valves are simple flow control valves. In a fixed displacement pump hydraulic system, a throttle valve and a relief valve can be used together to form three types of throttling speed control systems: inlet throttling speed control system, return throttling speed control system, and bypass throttling speed control system. Throttling valves do not have flow negative feedback function and cannot compensate for speed instability caused by load changes. They are generally only used in situations where the load change is small or the speed stability requirement is not high.

[0003] In some existing throttle valves, the medium flowing inside is usually under high pressure, which causes wear on the inner wall of the throttle valve during the flow process, accelerating the wear and tear of the throttle valve and reducing its service life. To address this, we propose a throttle valve resistant to erosion and corrosion. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a throttling valve resistant to erosion and corrosion, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a throttling valve resistant to erosion and corrosion, comprising a throttling valve body, an inlet pipe fixedly connected to one side of the throttling valve body, an outlet pipe threadedly connected to one side of the throttling valve body, a second flow-slowing pipe fixedly connected inside the inlet pipe, a first flow-slowing pipe fixedly connected to one side of the second flow-slowing pipe, a first flow-slowing plate fixedly connected inside the first flow-slowing pipe, a third flow-slowing plate fixedly connected inside the first flow-slowing pipe, a plurality of flow-slowing grooves formed inside the second flow-slowing pipe, and a second flow-slowing plate fixedly connected to one side of the second flow-slowing pipe.

[0006] Preferably, the first slow-flow pipe has a groove inside, and a sealing gasket is provided inside the groove. The mutual cooperation between the groove and the sealing gasket ensures the sealing between the first slow-flow pipe and the water inlet pipe.

[0007] Preferably, a plurality of connecting blocks are fixedly connected to the outside of the second slow-flow pipe, and the connecting blocks are fixedly connected to the inside of the outlet pipe. The second slow-flow pipe can be fixed to the inside of the inlet pipe through the plurality of connecting blocks.

[0008] Preferably, the throttle valve body has a groove inside, a flow control trapezoidal rod is slidably connected inside the groove, and a screw is rotatably connected inside the groove via a bearing, the screw being threaded into the inside of the flow control trapezoidal rod.

[0009] Preferably, the throttle valve body has a flow-slowing orifice inside, and the flow-control trapezoidal rod cooperates with the flow-slowing orifice.

[0010] Preferably, two corresponding lifting grooves are provided inside the throttle valve body and outside the slide groove, and two corresponding lifting blocks are fixedly connected to the outside of the flow control trapezoidal rod, and the lifting blocks are slidably connected inside the lifting grooves.

[0011] Preferably, one end of the screw extends to the outside of the throttle valve body and is fixedly connected to a rotating handle.

[0012] Preferably, a leak-proof pad is provided on the outer side of the flow control trapezoidal rod, and the inner walls of the throttle valve body, the inlet pipe, and the outlet pipe are all coated with anti-corrosion paint. A connecting flange is provided on the outer side of the inlet pipe and the outlet pipe.

[0013] This utility model provides a throttling valve resistant to erosion and corrosion, which has the following beneficial effects:

[0014] 1. This erosion-resistant throttle valve, through the cooperation of the first flow-slowing pipe and the first flow-slowing plate, can initially buffer the flowing medium, thereby reducing the flow velocity and the impact force on the third flow-slowing plate. Through the cooperation of the second flow-slowing pipe, the flow-slowing groove, and the second flow-slowing plate, the flowing medium can be further diverted and buffered, thereby reducing the impact force of the medium on the inner wall of the inlet pipe, the throttle valve body, and the outlet pipe, and improving the service life of the erosion-resistant throttle valve.

[0015] 2. This erosion-resistant throttle valve, through the cooperation of the groove and the sealing gasket, can ensure the sealing between the first slow-flow pipe and the inlet pipe, thereby preventing the backflow of the medium. By rotating the handle and the screw, the flow-control trapezoidal rod can be driven to slide inside the slide groove, so that the flow-control trapezoidal rod is inserted into the slow-flow port. The flow rate of the medium is gradually controlled by the trapezoidal protrusion of the flow-control trapezoidal rod, which improves the practicality of the erosion-resistant throttle valve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the water inlet pipe of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the slow-flow tube of this utility model.

[0019] In the diagram: 1. Throttling valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Connecting flange; 5. First flow-slowing pipe; 6. Second flow-slowing pipe; 7. First flow-slowing plate; 8. Slot; 9. Sealing gasket; 10. Third flow-slowing plate; 11. Flow-slowing groove; 12. Connecting block; 13. Second flow-slowing plate; 14. Flow-slowing port; 15. Flow-control trapezoidal rod; 16. Slide groove; 17. Screw; 18. Lifting groove; 19. Lifting block; 20. Rotating handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figures 1 to 3 This utility model provides a technical solution: a throttle valve resistant to erosion and corrosion, including a throttle valve body 1, an inlet pipe 2 fixedly connected to one side of the throttle valve body 1, an outlet pipe 3 threadedly connected to one side of the throttle valve body 1, a second slow-flow pipe 6 fixedly connected inside the inlet pipe 2, a first slow-flow pipe 5 fixedly connected to one side of the second slow-flow pipe 6, a first slow-flow plate 7 fixedly connected inside the first slow-flow pipe 5, a third slow-flow plate 10 fixedly connected inside the first slow-flow pipe 5, a plurality of slow-flow grooves 11 opened inside the second slow-flow pipe 6, and a second slow-flow plate 13 fixedly connected to one side of the second slow-flow pipe 6;

[0022] The first slow-flow pipe 5 has a groove 8 inside, and a sealing gasket 9 is installed inside the groove 8. Through the cooperation of the groove 8 and the sealing gasket 9, the sealing between the first slow-flow pipe 5 and the water inlet pipe 2 is guaranteed.

[0023] Multiple connecting blocks 12 are fixedly connected to the outside of the second slow-flow pipe 6. The connecting blocks 12 are fixedly connected to the inside of the water outlet pipe 3. The second slow-flow pipe 6 can be fixed to the inside of the water inlet pipe 2 through the multiple connecting blocks 12.

[0024] The throttle valve body 1 has a groove 16 inside, and a flow-controlling trapezoidal rod 15 is slidably connected inside the groove 16. A sealing gasket is provided between the groove 16 and the flow-controlling trapezoidal rod 15, and the sealing gasket is fitted into the inner cavity of the groove 16.

[0025] The inside of the chute 16 is rotatably connected to the screw 17 via a bearing, and the screw 17 is threadedly connected to the inside of the flow control trapezoidal rod 15.

[0026] The throttle valve body 1 has a slow flow port 14 inside, the flow control trapezoidal rod 15 cooperates with the slow flow port 14, and the contact point between the flow control trapezoidal rod 15 and the slow flow port 14 is provided with a sealing element.

[0027] Two corresponding lifting grooves 18 are provided inside the throttle valve body 1 and outside the slide groove 16. Two corresponding lifting blocks 19 are fixedly connected to the outside of the flow control trapezoidal rod 15. The lifting blocks 19 are slidably connected to the inside of the lifting grooves 18.

[0028] One end of the screw 17 extends to the outside of the throttle valve body 1 and is fixedly connected to the rotating handle 20;

[0029] A leak-proof pad is provided on the outside of the flow control trapezoidal rod 15. The inner walls of the throttle valve body 1, the inlet pipe 2, and the outlet pipe 3 are all coated with anti-corrosion paint. A connecting flange 4 is provided on the outside of the inlet pipe 2 and the outlet pipe 3.

[0030] In summary, this erosion-resistant throttle valve, during use, can initially buffer the flowing medium through the cooperation of the first flow-slowing pipe 5, the third flow-slowing plate 10, and the first flow-slowing plate 7, thereby reducing the flow velocity and the impact force on the third flow-slowing plate 10. Through the cooperation of the second flow-slowing pipe 6, the flow-slowing groove 11, and the second flow-slowing plate 13, the flowing medium can be further diverted and buffered, thereby reducing the impact force of the medium on the inner walls of the inlet pipe 2, the throttle valve body 1, and the outlet pipe 3. Manually turning the handle 20 drives the screw 17 to rotate, thereby causing the flow-control trapezoidal rod 15 to slide inside the slide groove 16, thereby controlling the medium flow velocity.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A throttle valve resistant to erosion and corrosion, comprising a throttle valve body (1), characterized in that: A water inlet pipe (2) is threadedly connected to one side of the throttle valve body (1), and a water outlet pipe (3) is fixedly connected to one side of the throttle valve body (1). A second slow-flow pipe (6) is fixedly connected inside the water inlet pipe (2). A first slow-flow pipe (5) is fixedly connected to one side of the second slow-flow pipe (6). A first slow-flow plate (7) is fixedly connected inside the first slow-flow pipe (5). A third slow-flow plate (10) is fixedly connected inside the first slow-flow pipe (5). Multiple slow-flow grooves (11) are opened inside the second slow-flow pipe (6). A second slow-flow plate (13) is fixedly connected to one side of the second slow-flow pipe (6).

2. The erosion-resistant throttling valve according to claim 1, characterized in that: The first slow-flow tube (5) has a slot (8) inside, and a sealing gasket (9) is provided inside the slot (8).

3. The erosion-resistant throttling valve according to claim 1, characterized in that: Multiple connecting blocks (12) are fixedly connected to the outside of the second slow-flow pipe (6), and the connecting blocks (12) are fixedly connected to the inside of the water outlet pipe (3).

4. The erosion-resistant throttling valve according to claim 1, characterized in that: The throttle valve body (1) has a sliding groove (16) inside, and a flow control trapezoidal rod (15) is slidably connected inside the sliding groove (16). A screw (17) is rotatably connected inside the sliding groove (16) through a bearing, and the screw (17) is threadedly connected to the inside of the flow control trapezoidal rod (15).

5. The erosion-resistant throttling valve according to claim 4, characterized in that: The throttle valve body (1) has a slow-flow port (14) inside, and the flow control trapezoidal rod (15) cooperates with the slow-flow port (14).

6. The erosion-resistant throttling valve according to claim 4, characterized in that: The throttle valve body (1) has two corresponding lifting grooves (18) inside and outside the slide groove (16). The flow control trapezoidal rod (15) has two corresponding lifting blocks (19) fixedly connected to its outer side. The lifting blocks (19) are slidably connected to the inside of the lifting grooves (18).

7. The erosion-resistant throttling valve according to claim 4, characterized in that: One end of the screw (17) extends to the outside of the throttle valve body (1) and is fixedly connected to a rotating handle (20).

8. The erosion-resistant throttling valve according to claim 4, characterized in that: The outer side of the flow control trapezoidal rod (15) is provided with a leak-proof pad. The inner walls of the throttle valve body (1), the inlet pipe (2), and the outlet pipe (3) are all coated with anti-corrosion paint. The outer sides of the inlet pipe (2) and the outlet pipe (3) are provided with connecting flanges (4).

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