Side pressurizing hole moving valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a side pressurization hole moving valve which comprises a valve shell and a valve cavity formed in the valve shell, a material flowing hole penetrating through the valve cavity is formed in the valve shell, and a valve element plate capable of vertically sliding is installed in the valve cavity. A driving set capable of driving the valve element plate to vertically slide is fixedly connected to the valve shell, a round hole opposite to the material flowing hole is formed in the valve element plate, an arc-shaped blade part is fixedly connected to the inner wall, located on the lower portion, of the round hole, and a plate body, located on the lower portion of the round hole, of the valve element plate is a blocking plate. The section of the arc-shaped blade portion is in an equilateral triangle shape, the upper end of the arc-shaped blade portion is a blade portion, the side faces of the front side and the rear side of the blade portion are obliquely-arranged blade faces, and the lower edge strips of the two blade faces coincide with the lower edge lines of the front side and the rear side of the round hole respectively. The blocking phenomenon caused by the fact that particulate matter is blocked between the valve element plate and the valve shell when the valve is closed can be further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and in particular relates to a side pressure-boosting orifice-shifting valve. Background Art

[0002] In the slurry conveying pipeline, the valve is an extremely important accessory. By operating the valve, the slurry conveying pipeline can be controlled to work or stop working;

[0003] During the slurry transportation process, since the slurry fluid contains hard particles, coarse particles, sharp particles, and easily agglomerated materials, when the valve is closed, the particles are easily stuck between the valve core plate and the valve housing, causing the valve to be blocked when closed, resulting in the valve being unable to close completely normally;

[0004] In the prior art, the inventor of the present technical solution has proposed a solution, in which a circular hole is opened on the valve core plate, and a crescent-shaped structure is arranged on the lower inner wall of the circular hole, so that the valve core plate is driven upward against gravity when the valve is closed, so that the particles inside the circular hole automatically fall off from the inside of the circular hole under the action of gravity, thereby reducing the jamming phenomenon when the valve is closed;

[0005] However, due to the certain difference in thickness between the crescent-shaped structure and the valve core plate, a step surface will be formed at the lower part of the circular hole (i.e., the area between the crescent-shaped structure on the lower inner wall of the circular hole and the lower edge line of the circular hole). When closing the valve, certain particles may remain on the step surface, affecting the normal closing of the valve core plate, resulting in a certain possibility of jamming of the above-mentioned valve when closing. Utility Model Content

[0006] The utility model aims to provide a side pressure boosting orifice shifting valve, which can further reduce the blocking phenomenon caused by particles stuck between a valve core plate and a valve housing when the valve is closed.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A side boost orifice shifting valve comprises a valve housing and a valve cavity provided inside the valve housing, the valve housing is provided with a flow hole penetrating the valve cavity, a valve core plate capable of vertical sliding is installed inside the valve cavity, and a driving group capable of driving the valve core plate to vertically slide is fixedly connected to the valve housing;

[0009] The valve core plate is provided with a circular hole which can be opposite to the flow hole, and an arc-shaped blade is fixedly connected to the inner wall of the circular hole at the lower part, and the plate body on the valve core plate and located at the lower part of the circular hole is a blocking plate;

[0010] The valve core plate includes a blocked state and an open state. When the valve core plate is in the blocked state, the blocking plate of the valve core plate is opposite to the flow hole. When the valve core plate is in the open state, the circular hole is opposite to the flow hole. The drive group controls the valve core plate to switch between the blocked state and the open state by driving the valve core plate to slide vertically. The cross-section of the arc-shaped blade portion is an equilateral triangle. The upper end of the arc-shaped blade portion is a blade portion. The side surfaces on the front and rear sides of the blade portion are inclined blade surfaces. The lower side strips of the two blade surfaces coincide with the lower edge lines on the front and rear sides of the circular hole respectively.

[0011] Further, the valve housing includes a first valve body and a second valve body, the flow hole includes a second through hole and a first through hole, the second through hole is opened on the first valve body, the first through hole is opened on the second valve body, the valve cavity is the space between the first valve body and the second valve body, two clamping strips are fixedly connected between the first valve body and the second valve body and on both sides of the valve cavity, the first valve body, the second valve body, and the upper and lower ends of the two clamping strips are fixedly connected with pressure covers, the two pressure covers are provided with plate grooves, and the valve core plate passes through the plate grooves.

[0012] Furthermore, a ring groove overlapping with the center of the first through hole is formed on one side of the second valve body close to the valve cavity, the inner diameter of the ring groove is larger than the inner diameter of the first through hole, and an annular seal abutting against the valve core plate is installed inside the ring groove.

[0013] Furthermore, the annular seal includes a dynamic ring and an elastic ring installed inside the annular groove, the dynamic ring is located on the side of the elastic ring close to the valve cavity, the elastic ring is made of an elastic material, and the elastic ring is made of a hard material. When the elastic ring is in an uncompressed state, the total thickness of the dynamic ring and the elastic ring combination is greater than the distance between the side wall of the valve core plate and the side wall of the annular groove away from the valve core plate.

[0014] The technical effects achieved by the utility model are:

[0015] (1) When the valve is closed, a side-boosting orifice-shifting valve of the utility model can automatically move particles out of the circular hole by utilizing the blade, the inclined surface of the blade surface and the gravity of the particles through the counter-gravity movement of the valve core plate and the arc-shaped blade structure, thereby further reducing the obstruction caused by particles getting stuck between the valve core plate and the valve housing when the valve is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural explosion diagram of the utility model;

[0018] Figure 3It is a structural schematic diagram of the arc-shaped blade portion of the utility model;

[0019] Figure 4 It is a schematic diagram of a partial cutaway structure of the utility model;

[0020] Figure 5 This utility model Figure 4 A partial side view of

[0021] Figure 6 It is a state switching schematic diagram of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Valve housing; 2. Flow hole; 3. Valve core plate; 4. Round hole; 5. Arc-shaped blade; 6. Drive group; 7. First valve body; 8. Second valve body; 9. Clamp strip; 10. First through hole; 11. Valve stuffing box; 12. Sealing material; 13. Moving ring; 14. Elastic ring; 15. Ring groove; 16. Bracket; 17. Electric head; 18. Screw rod; 19. Second through hole; 20. Blade; 21. Blade surface; 22. Valve cavity; 23. Pressure cover. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0025] like Figure 1-6 As shown, a side boost orifice shift valve comprises a valve housing 1 and a valve cavity 22 provided inside the valve housing 1, a flow hole 2 penetrating the valve cavity 22 is provided on the valve housing 1, the flow hole 2 is provided in a front-to-back through-arrangement, and the slurry can flow through the flow hole 2, a vertically slidable valve core plate 3 is installed inside the valve cavity 22, a driving group 6 which can drive the valve core plate 3 to slide vertically is fixedly connected to the valve housing 1, and the valve core plate 3 can be driven to slide vertically by starting the driving group 6;

[0026] A circular hole 4 is provided on the valve core plate 3, which can be opposite to the flow hole 2, and the slurry can flow through the circular hole 4. An arc-shaped blade 5 is fixedly connected to the inner wall of the circular hole 4 at the lower part. The plate body on the valve core plate 3 and located below the circular hole 4 is a blocking plate, which can block the flow hole 2.

[0027] The valve core plate 3 includes a blocked state and an open state. When the valve core plate 3 is in the blocked state, the blocking plate of the valve core plate 3 is opposite to the flow hole 2, thereby blocking the flow hole 2 and stopping the flow of the slurry through the flow hole 2. When the valve core plate 3 is in the open state, the circular hole 4 is opposite to the flow hole 2, so that the slurry at the flow hole 2 can flow through the circular hole 4. The drive group 6 controls the valve core plate 3 to switch between the blocked state and the open state by driving the valve core plate 3 to slide vertically.

[0028] like Figure 2-3 As shown, the cross-section of the arc-shaped blade portion 5 is an equilateral triangle shape, the upper end of the arc-shaped blade portion 5 is a blade portion 20, and the side surfaces on the front and rear sides of the blade portion 20 are blade surfaces 21 that are inclined. Through the inclined setting of the blade portion 20 and the blade surface 21, the particles falling on the upper end of the blade surface 21 can automatically fall down under the action of gravity. In order to prevent the particles falling from the blade surface 21 from being left on the inner wall of the lower side of the circular hole 4, the lower side strips of the two blade surfaces 21 coincide with the lower edge lines on the front and rear sides of the circular hole 4 respectively. At this time, the particles on the blade portion 20 will automatically fall on the side of the valve core plate 3 when falling, and move out from the inside of the circular hole 4. At this time, when the driving group 6 drives the valve core plate 3 to move upward and enter the blocking state, the particles will be automatically pushed out from the inside of the circular hole 4 through the oblique cooperation of the blade portion 20 and the blade surface 21 with the gravity of the particles, further reducing the blocking phenomenon caused by the particles being stuck between the valve core plate 3 and the valve housing 1 when the valve core plate 3 enters the blocking state.

[0029] Here, the lower edge strip of the blade surface 21 is the edge line of the blade surface 21 away from the blade portion 20 .

[0030] Among them, Figure 1-2 As shown, the valve housing 1 includes a first valve body 7 and a second valve body 8, the flow hole 2 includes a second through hole 19 and a first through hole 10, the second through hole 19 is opened on the first valve body 7, the first through hole 10 is opened on the second valve body 8 and is opposite to the first valve body 7, the second through hole 19 and the first through hole 10 are combined into the flow hole 2, the valve cavity 22 is the space between the first valve body 7 and the second valve body 8, and two clamping strips 9 are fixedly connected between the first valve body 7 and the second valve body 8 and on both sides of the valve cavity 22, respectively, for blocking both sides of the valve cavity 22, and the upper ends and lower ends of the first valve body 7, the second valve body 8, and the two clamping strips 9 are fixedly connected. A gland 23 is fixedly connected to the valve cavity 22 for sealing the upper and lower ends. Plate grooves are opened on the two glands 23. The valve core plate 3 passes through the plate grooves. The valve core plate 3 can be moved by setting the plate grooves. By splitting the valve housing 1 into the first valve body 7, the second valve body 8, the clamping strip 9 and the gland 23, the processing difficulty of the valve housing 1 can be greatly reduced, and the first valve body 7, the second valve body 8, the clamping strip 9 and the gland 23 can be fixed by screws. When repairing, the screws connecting the first valve body 7, the second valve body 8, the clamping strip 9 and the gland 23 can be removed to relatively easily inspect the interior of the valve housing 1.

[0031] Furthermore, since both ends of the valve core plate 3 can penetrate the plate groove and move to the outside of the valve housing 1, the limit value constraints of the upper and lower dead points of the gate valve can be eliminated, allowing the drive group 6 to work stably.

[0032] like Figure 2 and Figure 4-5 As shown, in order to improve the waterproof sealing performance of the valve housing 1, valve stuffing boxes 11 are provided on the upper and lower parts of the opposite sides of the first valve body 7 and the second valve body 8, and the valve stuffing boxes 11 of the first valve body 7 and the second valve body 8 are opposite to each other. The two opposite valve stuffing boxes 11 form a complete stuffing box unit. The interior of the valve stuffing box 11 is provided with a sealing material 12. The sealing material 12 can be any one of rubber, graphite, glass fiber, and PTFE fiber, preferably rubber, which has good sealing performance. A pressure strip filled in the valve stuffing box 11 and abutting against the sealing material 12 is provided on the side of the pressure cover 23 close to the valve housing 1. The pressure strip limits the rubber and blocks the opening of the valve stuffing box 11 to reduce water leakage when the valve core plate 3 moves.

[0033] At the same time, if Figure 2 and Figure 4-5 As shown, a ring groove 15 overlapping with the center of the first through hole 10 is provided on one side of the second valve body 8 close to the valve cavity 22, and the inner diameter of the ring groove 15 is larger than the inner diameter of the first through hole 10. An annular seal that abuts against the valve core plate 3 is installed inside the ring groove 15 to improve the sealing between the valve core plate 3 and the second valve body 8 and reduce the phenomenon of slurry entering the valve cavity 22.

[0034] Moreover, since the annular seal is easily worn when the valve core plate 3 moves, in order to extend the service life of the annular seal and reduce the wear of the annular seal when the valve core plate 3 moves, a wear-resistant coating is provided on the side where the annular seal abuts against the valve core plate 3 to reduce wear damage.

[0035] At the same time, in order to further improve the sealing performance of the annular seal, the technical solution improves the structure of the annular seal, specifically, the annular seal includes a moving ring 13 and an elastic ring 14 installed inside the annular groove 15, the moving ring 13 is located on the side of the elastic ring 14 close to the valve chamber 22, the elastic ring 14 is made of elastic material and has good elasticity, and the elastic ring 14 is made of hard material. When the elastic ring 14 is not compressed, the total thickness of the moving ring 13 and the elastic ring 14 combination is greater than the distance between the side wall of the valve core plate 3 and the side wall of the annular groove 15 away from the valve core plate 3. At this time, when the valve core plate 3 and the moving ring 13 are against each other, the elastic ring 14 will be compressed by force, so that the compressed elastic ring 14 always pushes the moving ring 13, so that the moving ring 13 and the valve core plate 3 are closely against each other, reducing the gap during contact, and realizing the hard sealing of the moving ring 13 on the valve core plate 3, which plays a role in cutting off the slurry in the pipeline.

[0036] At the same time, the inner diameter and outer diameter of the dynamic ring 13 and the elastic ring 14 are the same, the compression or elastic force transmission is better, and it is not easy to produce fluid dead corners. The outer diameters of the dynamic ring 13 and the elastic ring 14 are larger than the inner diameter of the circular hole 4, which can reduce the phenomenon of the dynamic ring 13 and the elastic ring 14 falling off from the circular hole 4. The inner diameters of the dynamic ring 13 and the elastic ring 14 are the same as the inner diameter of the circular hole 4, making the circulation of the slurry smoother.

[0037] Among them, Figure 1-4 As shown, the driving group 6 includes two brackets 16 respectively fixedly connected to the upper ends of the first valve body 7 and the second valve body 8, and the two brackets 16 are fixedly connected to the electric heads 17, and the electric heads 17 are equipped with a screw rod 18 fixedly connected to the valve core plate 3. At this time, the electric head 17 drives the screw rod 18 to move vertically, which can drive the valve core plate 3 to move;

[0038] At the same time, the electric head 17 and the screw rod 18 can also be replaced by an electric push rod fixedly connected to the bracket 16, the output end of the electric push rod is fixedly connected to the valve core plate 3, and the valve core plate 3 can be driven to move vertically by starting the electric push rod.

[0039] The working principle of the utility model is as follows: when the pipeline is in normal use, the driving group 6 is started to drive the valve core plate 3 to descend until the circular hole 4 and the flow hole 2 are aligned, so that the valve core plate 3 enters the open state, and the slurry inside the pipeline can flow normally through the flow hole 2 and the circular hole 4;

[0040] When the pipeline needs to be stopped, the driving group 6 is started to drive the valve core plate 3 to move upward against gravity until the blocking plate of the valve core plate 3 is aligned with the flow hole 2, the flow hole 2 is blocked, and the flow of the slurry through the flow hole 2 is stopped;

[0041] At the same time, during the upward movement of the valve core plate 3 against gravity, the particles inside the circular hole 4 will automatically move out from the circular hole 4 under the action of the blade portion 20, the inclined surface of the blade surface 21 and the gravity of the particles, thereby further reducing the jamming phenomenon caused by the particles getting stuck between the valve core plate 3 and the valve housing 1 when the side boost shift hole valve is closed.

[0042] In summary, when the valve is closed, the present technical solution can cooperate with the structure of the arc-shaped blade 5 by means of the anti-gravity movement of the valve core plate 3, and can utilize the inclined surfaces of the blade 20 and the blade surface 21 and the gravity of the particles to automatically move the particles inside the circular hole 4 out, thereby further reducing the obstruction caused by particles getting stuck between the valve core plate 3 and the valve housing 1 when the side boost shift hole valve is closed.

[0043] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A side pressure boosting orifice shifting valve, comprising a valve housing (1) and a valve cavity (22) provided inside the valve housing (1), the valve housing (1) being provided with a flow hole (2) penetrating the valve cavity (22), a valve core plate (3) being installed inside the valve cavity (22) and being capable of vertical sliding, and a driving group (6) being fixedly connected to the valve housing (1) and capable of driving the valve core plate (3) to vertically slide; The valve core plate (3) is provided with a circular hole (4) which can be opposite to the flow hole (2); an arc-shaped blade (5) is fixedly connected to the inner wall of the circular hole (4) at the lower part; and the plate body on the valve core plate (3) and located at the lower part of the circular hole (4) is a blocking plate; The valve core plate (3) includes a blocking state and an open state. When the valve core plate (3) is in the blocking state, the blocking plate of the valve core plate (3) and the flow hole (2) are opposite each other. When the valve core plate (3) is in the open state, the circular hole (4) and the flow hole (2) are opposite each other. The driving group (6) drives the valve core plate (3) to slide vertically to control the valve core plate (3) to switch between the blocking state and the open state. The invention is characterized in that: The cross section of the arc-shaped blade portion (5) is in the shape of an equilateral triangle. The upper end of the arc-shaped blade portion (5) is a blade portion (20). The side surfaces on the front and rear sides of the blade portion (20) are inclined blade surfaces (21). The lower side strips of the two blade surfaces (21) respectively coincide with the lower edge lines on the front and rear sides of the circular hole (4).

2. A side pressure boosting orifice shifting valve according to claim 1, characterized in that: The valve housing (1) comprises a first valve body (7) and a second valve body (8); the flow hole (2) comprises a second through hole (19) and a first through hole (10); the second through hole (19) is provided on the first valve body (7); the first through hole (10) is provided on the second valve body (8); the valve cavity (22) is a space between the first valve body (7) and the second valve body (8); two clamping strips (9) are fixedly connected between the first valve body (7) and the second valve body (8) and on both sides of the valve cavity (22); the upper and lower ends of the first valve body (7), the second valve body (8) and the two clamping strips (9) are fixedly connected with a pressure cover (23); the two pressure covers (23) are provided with plate grooves, and the valve core plate (3) passes through the plate grooves.

3. A side pressure boosting orifice shifting valve according to claim 2, characterized in that: A valve stuffing box (11) is provided at the upper and lower parts of the opposite sides of the first valve body (7) and the second valve body (8), and the valve stuffing boxes (11) of the first valve body (7) and the second valve body (8) are opposite to each other. A sealing material (12) is provided inside the valve stuffing box (11), and a pressure strip filled inside the valve stuffing box (11) and abutting against the sealing material (12) is provided on the side of the gland (23) close to the valve housing (1).

4. A side pressure boosting orifice shifting valve according to claim 2, characterized in that: A ring groove (15) overlapping with the center of the first through hole (10) is provided on one side of the second valve body (8) close to the valve cavity (22); the inner diameter of the ring groove (15) is larger than the inner diameter of the first through hole (10); and an annular seal that abuts against the valve core plate (3) is installed inside the ring groove (15).

5. A side pressure boosting orifice shifting valve according to claim 4, characterized in that: A wear-resistant coating is provided on the side of the annular seal that abuts against the valve core plate (3).

6. A side pressure boosting orifice shifting valve according to claim 4, characterized in that: The annular seal comprises a movable ring (13) and an elastic ring (14) installed inside the annular groove (15); the movable ring (13) is located on a side of the elastic ring (14) close to the valve cavity (22); the elastic ring (14) is made of an elastic material; the elastic ring (14) is made of a hard material; when the elastic ring (14) is in a non-compressed state, the total thickness of the combined body of the movable ring (13) and the elastic ring (14) is greater than the distance between the side wall of the valve core plate (3) and the side wall of the annular groove (15) away from the valve core plate (3).

7. A side pressure boosting orifice shifting valve according to claim 6, characterized in that: The inner diameter and outer diameter of the moving ring (13) and the elastic ring (14) are the same, and the outer diameters of the moving ring (13) and the elastic ring (14) are larger than the inner diameter of the circular hole (4).

8. The side pressure boosting orifice shifting valve according to claim 2, characterized in that: The drive group (6) comprises two brackets (16) respectively fixedly connected to the upper ends of the first valve body (7) and the second valve body (8), the two brackets (16) are fixedly connected to electric heads (17), and the electric heads (17) are equipped with a screw rod (18) fixedly connected to the valve core plate (3).

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