CN218118655U

CN218118655U - Knife-shaped slurry adjusting valve

Info

Publication number: CN218118655U
Application number: CN202222626497.0U
Authority: CN
Inventors: 崔东; 王金宝; 吴景兆; 韩克武
Original assignee: Shandong Luyu Valve Co ltd
Current assignee: Shandong Luyu Valve Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-23
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to the technical field of industrial valves, in particular to a knife-type slurry adjusting valve, which comprises a first valve body and a second valve body, wherein a groove is arranged at the joint of the first valve body and the second valve body, a knife-type valve seat is arranged in the groove, a valve rod is arranged inside the first valve body, a driving device is arranged at one end of the valve rod, a knife-type valve clack is arranged at the other end of the valve rod, the side surface of the knife-type valve clack is contacted with the knife-type valve seat and forms a sealing surface, a linear medium flow passage is formed in the inner cavities of the first valve body and the second valve body, slurry can pass through the medium flow passage, the inner cavity of the first valve body is provided with a side cavity communicated with the medium flow passage, and the knife-type valve clack is provided with an inclined plane parallel to the axis of the medium flow passage; the knife-type valve clack comprises a closed state and an open state. The utility model discloses because rational in infrastructure, reduced the medium to the washing away of sword type valve clack and the sealed face of sword type disk seat, simultaneously because of the unblocked non-resistance of medium runner, also reduced the washing away to the valve body inner chamber, so prolonged the life of valve.

Description

Knife-shaped slurry adjusting valve

Technical Field

The utility model relates to an industrial valve technical field, concretely relates to ground paste valve is adjusted to sword type.

Background

The problems of easy scouring, easy precipitation, easy scabbing and short service life exist in the current flow regulation during the transportation of special media in pipelines in the fields of mines, buildings, chemical industry, metallurgy and the like, and no good solution is available all the time.

Especially in the production process of alumina, people are constantly searching for the problem of flow regulation during the transportation of special media in pipelines. The stop valve is adopted to solve the problems, but the fluid resistance is large due to an S structure in the stop valve, so that the requirement of pipeline flow regulation slurry cannot be met; although the gate valve is of a straight-through structure, a part of the gate plate is completely flushed when the medium flow is adjusted, and the part of the gate plate, which is in contact with the medium, is flushed away after long-time flushing; the soft seal ball valve can not meet the requirement of flow regulation because the valve ball is easily washed by particles in slurry medium in a short time; the butterfly valve has the advantages of short straight-through structure, small size, light weight, and quick opening and closing of the 90-degree rotary butterfly plate, and has the defects that the butterfly plate is completely in a valve body flow channel, so that the flow is reduced, the particle liquid butterfly plate is easily washed when slurry is encountered, and the butterfly valve is rarely used as an adjusting valve.

The medium conditions of valves used in the production processes of the aluminum oxide are the worst working conditions, and the valves used in domestic and foreign pipelines are basically Y-shaped slurry regulating valves. However, because of the Y-shaped structure of the valve body, the valve body cannot form a straight line with a valve body channel under the limitation of the valve seat, and the regulating valve clack is in a regular cone shape in the flow regulating process, and meanwhile, a large amount of metal small particles contained in the slurry medium are subjected to long-time back flushing of the medium, so that the corresponding sealing part of the valve seat is pierced, and the valve body wall is flushed through. However, the current ceramic regulating valve has no ideal main body structure, so that the scouring resistance of the regulating valve used for conveying special media such as dust, slurry and the like through an industrial pipeline becomes an international difficult problem.

Disclosure of Invention

The utility model discloses to the used regulation type valve of special media such as present industrial pipeline transport dust, ground paste is not resistant to erodeing, easily deposits, short scheduling problem of life, provides a ground paste valve is adjusted to sword type.

In order to achieve the purpose, the utility model adopts the technical scheme that a knife-shaped slurry adjusting valve comprises a first valve body and a second valve body, wherein a groove is formed at the joint of the first valve body and the second valve body, a knife-shaped valve seat is arranged in the groove, a valve rod is arranged inside the first valve body, a driving device is arranged at one end of the valve rod, a knife-shaped valve clack is arranged at the other end of the valve rod, the side surface of the knife-shaped valve clack is contacted with the knife-shaped valve seat to form a sealing surface, a linear medium flow channel is formed in the inner cavities of the first valve body and the second valve body, slurry can pass through the medium flow channel, a side cavity communicated with the medium flow channel is arranged in the inner cavity of the first valve body, and the knife-shaped valve clack is provided with an inclined plane parallel to the axis of the medium flow channel; the knife-shaped valve clack comprises a closing state and an opening state, and is abutted against the knife-shaped valve seat when the knife-shaped valve clack is in the closing state, the inclined surface is tightly attached to the inner side wall of the second valve body, and the medium flow channel is disconnected; when the knife-shaped valve clack is in the opening state, the knife-shaped valve clack moves upwards to enter the side cavity and is separated from the knife-shaped valve seat, and slurry can flow through the inclined surface and flow through the linear medium flow channel.

Preferably, the valve further comprises a stuffing box, and the stuffing box is fixed to the upper end of the first valve body.

Preferably, the packing box comprises a flexible graphite ring, a packing pressing sleeve and a packing pressing plate, the flexible graphite ring, the packing pressing sleeve and the packing pressing plate are sleeved on the outer side of the valve rod, the lower end of the flexible graphite ring is abutted to the inner wall of the valve body, the lower end of the packing pressing sleeve is abutted to the flexible graphite ring, the upper end of the packing pressing sleeve is abutted to the packing pressing plate, and the packing pressing plate can extrude the flexible graphite ring and the packing pressing sleeve.

Preferably, the stuffing box further comprises a fixing bolt, the stuffing pressing plate is provided with a fixing hole, the upper end of the valve body is provided with a bolt hole, and the fixing bolt penetrates through the fixing hole and the bolt hole so as to fixedly connect the stuffing pressing plate with the valve body.

Preferably, a support is further fixed to the upper end of the first valve body, and the driving device is fixed to the upper end of the support.

Preferably, one side of the support, which faces the valve rod, is provided with an anti-rotation block, and the anti-rotation block is sleeved on the valve rod.

Preferably, one side of the anti-rotation block, which is close to the inner wall of the support, is also provided with a pointer, and the support is fixed with a graduated scale extending along the axis of the valve rod.

Preferably, the inner wall of the side cavity is provided with a convex guide rail extending along the axial direction of the valve rod, the knife-shaped valve clack is provided with a concave guide groove, and the convex guide rail is in sliding fit with the concave guide groove so that the knife-shaped valve clack moves along the inner cavity of the first valve body.

Preferably, the inclined plane is arranged in parallel with the inner wall of the lower end of the second valve body.

Preferably, the medium flow channel, the inclined plane and the inner wall of the lower end of the second valve body form an included angle of 45 degrees with the axis of the valve rod.

Preferably, the end part of the valve rod is sleeved with a split ring and a valve clack cover, and the valve clack cover is in bolted connection with the knife-shaped valve clack.

Preferably, the first valve body and the second valve body are connected through an elliptical flange.

The utility model has the advantages that:

the utility model discloses an easy problem that erodees is solved to the sword type valve clack, and when opening the medium runner, the inclined plane of sword type valve clack is owing to be parallel with the medium runner, so the entering side chamber just in time is filled to the sword type valve clack, and the inclined plane forms smooth linear with the inside wall of valve body one, does not have protruding structure, has avoided being erodeed and the short scheduling problem of life that leads to by the ground paste.

The utility model discloses because rational in infrastructure, reduced the medium to the washing away of sword type valve clack and the sealed face of sword type disk seat, simultaneously because of the unblocked non-resistance of medium runner, also reduced the washing away to the valve body inner chamber, so prolonged the life of valve.

The utility model discloses a when the valve was adjusted the action, the straight face of one side was all the time pasted the disk seat straight face and is realized reducing the washing away of sword shape valve clack and the sealed face of sword shape disk seat in 45 tops of a valve body passageway of sword shape valve clack, and the most obvious is because the structure of sword shape valve clack, has reduced the washing away of medium recoil to the valve body inner chamber.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a sectional view of a knife-type slurry regulating valve according to the present invention.

In the figure: 1. the valve body II, 2, the knife-shaped valve seat, 3, the concave guide groove, 4, the split ring, 5, the valve clack cover, 6, the knife-shaped valve clack, 7, the valve rod, 8, the valve body I, 9, the flexible graphite ring, 10, the packing pressing sleeve, 11, the packing pressing plate, 12, the anti-rotation block, 13, the pointer, 14, the graduated scale, 15, the support, 16, the driving device, 17, the medium flow channel, 18, the side cavity, 19 and the inclined plane.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is obvious that the embodiments described below are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in fig. 1, in this embodiment, the utility model provides a specific structure of a knife-type slurry regulating valve includes a second valve body 1, a knife-shaped valve seat 2, a concave guide groove 3, a split ring 4, a valve flap cover 5, a knife-shaped valve flap 6, a valve rod 7, a first valve body 8, a flexible graphite ring 9, a packing pressing sleeve 10, a packing pressing plate 11, an anti-rotation block 12, a pointer 13, a scale 14, a support 15 and a driving device 16, wherein the first valve body 8 and the second valve body 1 are fixedly connected, and specifically can be connected through connecting pieces such as flanges, a groove is formed at the connection part of the first valve body 8 and the second valve body 1, the knife-shaped valve seat 2 is arranged in the groove, the valve rod 7 is arranged inside the first valve body 8, the driving device 16 is arranged at one end of the valve rod 7, the other end of the valve rod 7 is provided with the knife-type valve flap 6, the side surface of the knife-type valve flap 6 is in contact with the knife-type valve seat 2 and forms a straight line-shaped medium flow channel 17, slurry can pass through the medium flow channel 17, the inner cavity of the first valve body 8 has a side cavity 18 communicated with the medium flow channel 19; the knife-shaped valve clack 6 comprises a closing state and an opening state, when the knife-shaped valve clack 6 is in the closing state, the knife-shaped valve clack 6 is abutted against the knife-shaped valve seat 2, the inclined surface 19 is tightly attached to the inner side wall of the valve body II 1, and the medium flow channel 17 is disconnected; when the knife-shaped valve flap 6 is in the open state, the knife-shaped valve flap 6 moves upwards into the side cavity 18 and separates from the knife-shaped valve seat 2, and slurry can flow through the inclined surface 19 and flow through the linear medium flow channel 17.

As shown in fig. 1, the flexible graphite ring 9, the packing gland 10 and the packing press plate 11 together form a packing box, and the packing box is fixed at the upper end of the first valve body 8. Specifically, the lower end of the flexible graphite ring 9 abuts against the inner wall of the first valve body 8, the lower end of the packing pressing sleeve 10 abuts against the flexible graphite ring 9, the upper end of the packing pressing sleeve 10 abuts against the packing pressing plate 11, and the packing pressing plate 11 can extrude the flexible graphite ring 9 and the packing pressing sleeve 10. The stuffing box further comprises a fixing bolt, the stuffing pressing plate 11 is provided with a fixing hole, the upper end of the first valve body 8 is provided with a bolt hole, and the fixing bolt penetrates through the fixing hole and the bolt hole to enable the stuffing pressing plate 11 to be fixedly connected with the first valve body 8.

As shown in fig. 1, a bracket 15 is further fixed at the upper end of the first valve body 8, a driving device 16 is fixed at the upper end of the bracket 15, and the driving device 16 mainly provides driving force for the valve rod 7.

One side of the support 15 facing the valve rod 7 is provided with an anti-rotation block 12, and the anti-rotation block 12 is sleeved on the valve rod 7. And one side of the anti-rotation block 12 close to the inner wall of the support 15 is also provided with a pointer 13, and the support 15 is fixed with a graduated scale 14 extending along the axis of the valve rod 7. When the driving device 16 drives the valve rod 7 to move up and down, the pointer 13 can indicate scales on the graduated scale 14, and the flow at the valve can be displayed according to different scales.

As shown in fig. 1, in order to stabilize the vertical movement of the knife-type valve flap 6 in the side cavity 18, a convex guide rail extending along the axial direction of the valve rod 7 is disposed on the inner wall of the side cavity 18, the knife-type valve flap 6 is provided with a concave guide groove 3, and the convex guide rail is in sliding fit with the concave guide groove 3 to enable the knife-type valve flap 6 to move along the inner cavity of the valve body one 8.

And the inclined plane 19 is arranged in parallel with the inner wall of the lower end of the second valve body 1. When the knife-shaped valve clack 6 moves downwards to close the medium flow passage 17, the inclined surface 19 and the inner wall of the lower end of the valve body II 1 are in a completely attached state.

As shown in FIG. 1, the medium flow passage 17, the inclined surface 19 and the inner wall of the lower end of the second valve body 1 form an included angle of 45 degrees with the axis of the valve rod 7.

Knife type valve clack 6 is connected with valve rod 7 and mainly relies on to opening ring 4 and valve clack lid 5, and is specific, and the tip cover of valve rod 7 is equipped with to opening ring 4 and valve clack lid 5, and valve clack lid 5 passes through bolt fixed connection with knife type valve clack 6.

As shown in fig. 1, the working principle of the knife-type slurry regulating valve is as follows:

the valve clack cover 5 arranged at the lower end of the valve rod 7 locks the split ring 4 into the knife-shaped valve clack 6, the valve rod 7 is respectively provided with a pointer 13, a packing pressing plate 11, a packing pressing sleeve 10, a flexible graphite ring 9 and a valve body I8 through a support 15 provided with a graduated scale 14, and the driving device 16 drives the valve rod 7 to drive the knife-shaped valve clack 6 provided with the concave guide groove 3 to do reciprocating axial motion in the valve body I8 provided with the convex guide rail, so that the adjustment and the opening and closing of the flow of the knife-shaped adjusting valve are realized.

The utility model has the advantages that:

the utility model discloses a problem that easy erodeing is solved to sword type valve clack 6, when opening medium runner 17, and the inclined plane 19 of sword type valve clack 6 is because parallel with medium runner 17, therefore sword type valve clack 6 just in time fills and gets into side chamber 18, and inclined plane 19 forms smooth linear with the inside wall of valve body 8, does not have protruding structure, has avoided being erodeed by the ground paste and the short scheduling problem of life that leads to.

The utility model discloses because rational in infrastructure, reduced the medium to the washing away of the sealed face of sword type valve clack 6 and sword type disk seat 2, simultaneously because of 17 unimpeded non-resistivities of medium runner, also reduced the washing away to the valve body inner chamber, so prolonged the life of valve.

The utility model discloses a when the valve was adjusted the action, knife-shaped valve clack 6 realized reducing the washing away of knife-

shaped valve clack

6 and 2 sealed faces of knife-shaped disk seat sticking to the straight face of disk seat all the time in 45 tops of 8 passageways of valve body, and the most obvious is because the structure of knife-shaped valve clack 6, has reduced the washing away of medium recoil to the valve body inner chamber.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A knife-shaped slurry adjusting valve is characterized by comprising a first valve body and a second valve body, wherein a groove is formed in the joint of the first valve body and the second valve body, a knife-shaped valve seat is arranged in the groove, a valve rod is arranged in the first valve body, a driving device is arranged at one end of the valve rod, a knife-shaped valve flap is arranged at the other end of the valve rod, the side surface of the knife-shaped valve flap is in contact with the knife-shaped valve seat to form a sealing surface, a linear medium flow channel is formed in the inner cavities of the first valve body and the second valve body, slurry can pass through the medium flow channel, a side cavity communicated with the medium flow channel is formed in the inner cavity of the first valve body, and the knife-shaped valve flap is provided with an inclined plane parallel to the axis of the medium flow channel;

the knife-shaped valve clack comprises a closing state and an opening state, and is abutted against the knife-shaped valve seat when the knife-shaped valve clack is in the closing state, the inclined plane is tightly attached to the inner side wall of the valve body II, and the medium flow channel is disconnected; when the knife-shaped valve clack is in the opening state, the knife-shaped valve clack moves upwards to enter the side cavity and is separated from the knife-shaped valve seat, and slurry can flow through the inclined surface and flow through the linear medium flow channel.

2. The knife-type slurry valve of claim 1, further comprising a stuffing box secured to an upper end of the first valve body.

3. The knife-type slurry regulating valve according to claim 2, wherein the packing box comprises a flexible graphite ring, a packing pressing sleeve and a packing pressing plate, the flexible graphite ring, the packing pressing sleeve and the packing pressing plate are sleeved outside the valve rod, the lower end of the flexible graphite ring abuts against the inner wall of the valve body I, the lower end of the packing pressing sleeve abuts against the flexible graphite ring, the upper end of the packing pressing sleeve abuts against the packing pressing plate, and the packing pressing plate can press the flexible graphite ring and the packing pressing sleeve.

4. The knife-type slurry valve according to claim 3, wherein the stuffing box further comprises a fixing bolt, the stuffing press plate is provided with a fixing hole, the upper end of the first valve body is provided with a bolt hole, and the fixing bolt penetrates through the fixing hole and the bolt hole to fixedly connect the stuffing press plate and the first valve body.

5. The knife-type slurry valve according to claim 1, wherein a bracket is further fixed to an upper end of the first valve body, and the driving device is fixed to an upper end of the bracket.

6. The knife-type slurry valve according to claim 5, wherein an anti-rotation block is disposed on a side of the bracket facing the valve stem, the anti-rotation block being sleeved on the valve stem.

7. The knife-type slurry valve according to claim 6, wherein a pointer is further disposed on one side of the rotation prevention block close to the inner wall of the bracket, and a scale extending along the axis of the valve rod is fixed on the bracket.

8. A knife-type slurry valve according to claim 1, wherein the inner wall of the side cavity is provided with a convex guide rail extending in the axial direction of the valve stem, and the knife-type valve flap is provided with a concave guide groove, and the convex guide rail and the concave guide groove are slidably engaged to move the knife-type valve flap along the inner cavity of the first valve body.

9. The knife-type slurry valve according to claim 1, wherein the inclined surface is arranged in parallel with the inner wall of the lower end of the second valve body.

10. The knife-type slurry regulating valve according to claim 9, wherein the medium flow passage, the inclined surface and the inner wall of the lower end of the second valve body form an included angle of 45 ° with the axis of the valve stem.