CN218094306U - Double-disc valve with shearing function - Google Patents
Double-disc valve with shearing function Download PDFInfo
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- CN218094306U CN218094306U CN202221539726.9U CN202221539726U CN218094306U CN 218094306 U CN218094306 U CN 218094306U CN 202221539726 U CN202221539726 U CN 202221539726U CN 218094306 U CN218094306 U CN 218094306U
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Abstract
The utility model relates to a take shear function double plate valve, include: a first valve seat; a stroke chamber is arranged between the first valve seat and the second valve seat, and the axes of the flow hole of the first valve seat and the flow hole of the second valve seat are in the same straight line; one end of the main shaft is inserted into the stroke cavity and is fixedly connected with one end of the swing arm; the upper end face and the lower end face of the other end of the swing arm are connected with the valve plate through the pressing assembly; the valve plate is suitable for covering the opening of the flow hole of the first valve seat or the second valve seat under the rotation of the main shaft; the valve plate can be tightly attached to the sealing surface of the first valve seat or the second valve seat under the action of the spiral disc spring, so that abrasion generated in the using process can be compensated, and the sealing performance is effectively ensured; meanwhile, the contact part of the valve plate and the first or second valve seat is designed into a cutter structure, so that the bonding or slagging medium can be effectively cut off in the opening and closing process; the valve plate and the sealing surface of the first or second valve seat are in dynamic friction during opening and closing, so that the valve plate and the sealing surface of the first or second valve seat can play a role of polishing the sealing surface.
Description
Technical Field
The utility model relates to a dish valve specifically is a take two dish valves of shear work ability.
Background
The disk valve is used for boiler pollution discharge, dirt discharge, rapid condensation substance treatment and the like. The method is widely applied to working conditions of hard particles, corrosive or slag-bonding media, frequent action and the like. At present, the main application fields are all: pulverized coal conveying, pulverized coal injection, ash and slag discharge systems, sewage and wastewater discharge systems and the like in a power plant; a pulp conveying and processing system in the paper making industry; catalyst conveying system in chemical industry; slurry delivery systems in cement manufacturing, and the like. The dust can be piled up in a large number in valve pocket or sealed face department, leads to the valve plate switch to be difficult and easy to appear the bite scheduling problem.
Because the dust contains a large amount of solid particles, the flow rate is high, the valve plate and the valve seat sealing surface are easy to flush, the sealing performance is reduced finally, and the use is influenced.
In summary, how to compensate the abrasion generated in the using process and effectively ensure the sealing performance becomes a problem which needs to be solved urgently by researchers in the field.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to compensate the abrasion in the using process and effectively ensure the sealing performance;
in order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model relates to a take shear function double plate valve, include: a first valve seat; the second valve seat is fixedly connected with the first valve seat, a stroke chamber is arranged between the first valve seat and the second valve seat, and the axes of the flow hole of the second valve seat and the flow hole of the first valve seat are in the same straight line; one end of the main shaft is inserted into the stroke cavity and is fixedly connected with one end of the swing arm; the upper end face and the lower end face of the other end of the swing arm are connected with the valve plate through the pressing assembly; the valve plate is suitable for covering the opening of the flow hole of the first valve seat or the second valve seat under the rotation of the main shaft;
in the scheme, a first valve seat; the second valve seats are connected through the connecting pipe to form a stroke chamber for the swing arm to rotate, the end face of the valve plate at the end part of the swing arm is always pressed against the end face of the first valve seat or the end face of the second valve seat through the pressing assembly, the end face of the valve plate is always attached to the first valve seat or the second valve seat, abrasion to the valve seats caused by solid particles is compensated, and sealing performance is effectively guaranteed.
In order to explain the concrete structure that compresses tightly the subassembly, the utility model discloses a compress tightly the subassembly and include: the vertical walls are arranged on the upper end surface and the lower end surface of the end part of the swing arm; the valve plate is sleeved on the corresponding vertical wall; an elastic component is arranged in the vertical wall and is abutted against the valve plate;
found the wall overcoat and be equipped with the valve plate, be provided with elastic component in the founding the wall and offset with the valve plate, the motion that can only carry out the straight line direction of the restriction valve plate that sets up of founding the wall, elastic component's setting can guarantee that the valve plate laminates first disk seat or second disk seat all the time.
In order to explain the concrete structure of elastic component, the utility model discloses an elastic component includes: a disc spring; the vertical section of the adjusting screw is sleeved with the disc spring, and the top of the adjusting screw is abutted to the valve plate;
the disc spring is positioned in the vertical wall, the adjusting screw is inserted into the disc spring, and the arc-shaped surface of the head of the adjusting screw is abutted against the valve plate.
In order to make the medium leak from the gap between the main shaft and the first valve seat, the utility model adopts the V-shaped packing arranged between the first valve seat and the main shaft;
the V-shaped packing can prevent the medium from leaking.
In order to compress the V-shaped packing, the utility model adopts the technical scheme that a packing pressing plate is sleeved on the main shaft and is positioned above the first valve seat, the packing pressing plate is connected with the first valve seat through a screw, a packing gland is arranged between the bottom of the packing pressing plate and the top of the V-shaped packing, and the packing gland is sleeved on the main shaft;
through rotating the screw, make the packing clamp plate down to make gland down simultaneously, compress the V type packing, guaranteed the sealing performance between main shaft and the first disk seat.
In order to guarantee that impurity enters into to the clamp plate that packs, the utility model discloses a clamp plate that packs's inner circle is provided with the dust ring, the dust ring cover is established on the main shaft.
In order to prevent loosening after screwing, a pre-tightening butterfly spring is arranged between the top of the packing pressing plate and the screw;
through setting up the pretension butterfly spring, the rebound force effect of pretension butterfly spring is used in between screw and the pressure plate that packs, and the upset of the screw of restriction prevents to appear becoming flexible.
In order to guarantee the stability of gland in the up-and-down motion in-process, the utility model discloses a gland inner circle be provided with the uide bushing with the main shaft is connected.
In order to prevent the medium from entering the gap between the first guide sleeve and the main shaft and causing locking, the first guide sleeve is fixedly arranged on the second valve seat; the end part of the main shaft is inserted into the guide sleeve; a balance sealing ring and a bushing are arranged inside the first guide sleeve and connected with the main shaft;
a welding mode is adopted between the second valve seat and the bottom of the first guide sleeve, so that a medium is prevented from entering a gap between the second valve seat and the first guide sleeve from the bottom of the first guide sleeve; the top of the first guide sleeve of the medium is prevented from entering a gap between the second valve seat and the first guide sleeve by arranging the lining and the balance sealing ring, and the locking phenomenon is effectively solved.
In order to guarantee swing arm pivoted stability, the utility model discloses a be located in the stroke cavity set gradually on the main shaft the second uide bushing swing arm tip first uide bushing.
Through setting up first uide bushing, second uide bushing, so, the tip of swing arm can only carry out the swing of horizontal direction, can restrict the swing arm.
The outer ring of the top of the valve plate is of a cutter structure, so that a bonding or slagging medium can be effectively cut off in the opening and closing process.
The utility model has the advantages that: the utility model relates to a take the double-disk valve of shear function, the valve plate can be laminated on the sealed face of first or second valve seat closely all the time under the influence of the spiral disk spring, can compensate the abrasion that appears in the use, guarantee the sealing performance effectively; meanwhile, the contact part of the valve plate and the first or second valve seat is designed into a cutter structure, so that the adhesive or slagging medium can be effectively cut off in the opening and closing process; the valve plate and the sealing surface of the first or second valve seat are in dynamic friction during opening and closing, so that the valve plate and the sealing surface of the first or second valve seat can play a role of polishing the sealing surface.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 circled;
FIG. 3 is a schematic view of the connection between the main shaft and the second valve seat;
in the figure: 1-a first valve seat, 2-a second valve seat, 3-a main shaft, 4-a swing arm, 5-a valve plate, 6-a connecting pipe, 7-a disc spring, 8-an adjusting screw, 9-V type packing, 10-a packing press plate, 11-a packing press cover, 12-a dust ring, 13-a pre-tightening disc spring, 14-a guide sleeve, 15-a first guide sleeve, 16-a balance seal ring and 17-a bushing.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1, the utility model relates to a take shear function double plate valve, include: a first valve seat 1; the second valve seat 2 is fixedly connected with the first valve seat 1, a stroke chamber is arranged between the second valve seat 2 and the first valve seat 1, and the axes of the flow hole of the second valve seat 2 and the flow hole of the first valve seat 1 are in the same straight line; one end of the main shaft 3 is inserted into the stroke chamber and is fixedly connected with one end of the swing arm 4; the upper end face and the lower end face of the other end of the swing arm 4 are connected with the valve plate 5 through the pressing assembly; the valve plate 5 is suitable for covering the opening of the circulation hole of the first valve seat 1 or the second valve seat 2 under the rotation of the main shaft 3;
in the scheme, a first valve seat; connect through takeover 6 between the second valve seat, form and supply swing arm pivoted stroke cavity, compress tightly first disk seat or second disk seat terminal surface with swing arm tip valve plate all the time through compressing tightly the subassembly, guarantee the terminal surface of valve plate and laminate first disk seat or second disk seat all the time, compensated and caused the wearing and tearing to the disk seat by solid particle, the effectual sealing performance that has guaranteed.
As shown in fig. 1, in order to illustrate the concrete structure of the pressing assembly, the utility model discloses a pressing assembly includes: the vertical walls are arranged on the upper end surface and the lower end surface of the end part of the swing arm 4; the valve plate 5 is sleeved on the corresponding vertical wall; an elastic component is arranged in the vertical wall and is abutted against the valve plate 5;
found the wall overcoat and be equipped with the valve plate, be provided with elastic component in the founding the wall and offset with the valve plate, the motion that can only carry out the straight line direction of the restriction valve plate that sets up of founding the wall, elastic component's setting can guarantee that the valve plate laminates first disk seat or second disk seat all the time.
As shown in fig. 1, in order to illustrate the specific structure of the elastic component, the present invention adopts an elastic component comprising: a disc spring 7; the vertical section of the adjusting screw 8 is sleeved with the disc spring 7, and the top of the adjusting screw abuts against the valve plate;
the dish spring is located founds the wall, and adjusting screw inserts and establishes in the dish spring to offset the arcwall face and the valve plate of its head, it needs to explain that, adjusting screw's length is less than the degree of depth of founding the wall, and the dish spring just can play the effect of compression or spring-open like this.
As shown in fig. 2, in order to make the medium leak from the gap between the main shaft and the first valve seat, the present invention adopts a V-shaped packing 9 arranged between the first valve seat 1 and the main shaft 3;
the V-shaped packing can prevent the medium from leaking.
As shown in fig. 2, in order to compress the V-shaped packing, the utility model adopts a main shaft 3 sleeved with a packing press plate 10, the packing press plate 10 is located above a first valve seat 1, the packing press plate 10 is connected with the first valve seat 1 through a screw, a packing gland 11 is arranged between the bottom of the packing press plate 1 and the top of the V-shaped packing 9, and the packing gland 11 is sleeved on the main shaft 3;
through rotating the screw, the packing pressing plate descends, the packing gland descends at the same time, V-shaped packing is compressed, and the sealing performance between the main shaft and the first valve seat is ensured.
As shown in fig. 2, in order to ensure that impurities enter into the packing press plate, the utility model discloses a packing press plate 10's inner circle is provided with dust ring 12, dust ring 12 cover is established on main shaft 3.
As shown in fig. 2, in order to prevent the loosening after screwing, a pretension belleville spring 13 is arranged between the top of the packing pressing plate 10 and the screw;
through setting up the pretension butterfly spring, the bounce-back force of pretension butterfly spring is used in between screw and the packing clamp plate, and the upset of the screw of restriction prevents to appear not hard up.
As shown in fig. 2, in order to ensure the stability of the packing gland in the up-and-down movement process, the utility model discloses a packing gland 11 inner circle be provided with the uide bushing 14 with main shaft 3 connects.
As shown in fig. 3, in order to prevent the medium from entering the gap between the first guide sleeve and the main shaft and causing a locking phenomenon, the second valve seat 2 of the present invention is fixedly provided with the first guide sleeve 15; the end of the spindle 3 is inserted into the first guide sleeve 15; a balance sealing ring 16 and a bushing 17 are arranged inside the first guide sleeve 15 and are connected with the main shaft 3;
a welding mode is adopted between the second valve seat and the bottom of the first guide sleeve, so that a medium is prevented from entering a gap between the second valve seat and the first guide sleeve from the bottom of the first guide sleeve; the top of the first guide sleeve of the medium is prevented from entering the gap between the second valve seat and the first guide sleeve by arranging the bushing and the balance sealing ring, and the locking phenomenon is effectively solved.
As shown in figure 1, in order to guarantee the swing arm pivoted stability, the utility model discloses a be located in the stroke cavity the main shaft 3 is gone up and is set gradually the second uide bushing swing arm tip first uide bushing.
Through setting up first uide bushing, second uide bushing, so, the tip of swing arm can only carry out the swing of horizontal direction, can restrict the swing arm.
As shown in figure 1, the outer ring of the top of the valve plate 5 is of a cutter structure, so that a bonding or slagging medium can be effectively cut off in the opening and closing process. In addition, in the valve opening and closing process, the valve plate and the sealing surface of the first valve seat or the second valve seat are in plane contact all the time, materials play a role of grinding agents between the valve plate and the sealing surface of the first valve seat or the second valve seat, damaged sealing surfaces are repaired at any time, and a good sealing effect of the valve is kept.
The utility model relates to a double-disc valve with shearing function, the valve plate can be tightly attached to the sealing surface of the first or the second valve seat under the action of the spiral spring, the abrasion in the use process can be compensated, and the sealing performance can be effectively ensured; meanwhile, the contact part of the valve plate and the first or second valve seat is designed into a cutter structure, so that the adhesive or slagging medium can be effectively cut off in the opening and closing process; the valve plate and the sealing surface of the first or second valve seat are in dynamic friction during opening and closing, so that the valve plate can play a role of polishing the sealing surface.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (11)
1. A dual disc valve with shear functionality, comprising:
a first valve seat;
the second valve seat is fixedly connected with the first valve seat, a stroke chamber is arranged between the first valve seat and the second valve seat, and the axes of the flow hole of the second valve seat and the flow hole of the first valve seat are in the same straight line;
one end of the main shaft is inserted into the stroke cavity and is fixedly connected with one end of the swing arm;
the upper end face and the lower end face of the other end of the swing arm are connected with the valve plate through the pressing assembly;
the valve plate is suitable for covering the opening of the flow hole of the first valve seat or the second valve seat under the rotation of the main shaft.
2. A dual disc valve with shear function according to claim 1, wherein the hold-down assembly comprises:
the vertical walls are arranged on the upper end surface and the lower end surface of the end part of the swing arm;
the valve plate is sleeved on the corresponding vertical wall;
an elastic component is arranged in the vertical wall and is abutted against the valve plate.
3. A dual disc valve with shear function according to claim 2, wherein the resilient assembly comprises:
a disc spring;
and the vertical section of the adjusting screw is sleeved with the disc spring, and the top of the adjusting screw is abutted to the valve plate.
4. A shear function dual disc valve as claimed in claim 1, wherein a V-shaped packing is provided between the first valve seat and the main shaft.
5. The dual-disc valve with the shearing function according to claim 4, wherein a packing pressure plate is sleeved on the main shaft and is located above the first valve seat, the packing pressure plate is connected with the first valve seat through a screw, a packing gland is arranged between the bottom of the packing pressure plate and the top of the V-shaped packing, and the packing gland is sleeved on the main shaft.
6. The dual-disc valve with the shearing function according to claim 5, wherein a dustproof ring is arranged on an inner ring of the packing pressing plate, and the dustproof ring is sleeved on the main shaft.
7. A dual disc valve with shear function according to claim 5, wherein a pre-tensioned belleville spring is provided between the top of the packing press plate and the screw.
8. The double-disc valve with the shearing function according to claim 5, wherein the inner ring of the packing gland is provided with a guide sleeve which is connected with the main shaft.
9. The dual-disc valve with the shearing function according to claim 1, wherein a first guide sleeve is fixedly arranged on the second valve seat;
the end part of the main shaft is inserted into the first guide sleeve;
the inside of first uide bushing is provided with balanced sealing washer, bush and the main shaft is connected.
10. The dual-disc valve with the shearing function as claimed in claim 9, wherein a second guide sleeve, the end part of the swing arm and the first guide sleeve are sequentially arranged on the main shaft positioned in the stroke chamber.
11. The dual-disc valve with the shearing function as claimed in claim 1, wherein the outer ring at the top of the valve plate is of a cutter structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539726.9U CN218094306U (en) | 2022-06-20 | 2022-06-20 | Double-disc valve with shearing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539726.9U CN218094306U (en) | 2022-06-20 | 2022-06-20 | Double-disc valve with shearing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218094306U true CN218094306U (en) | 2022-12-20 |
Family
ID=84476907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221539726.9U Active CN218094306U (en) | 2022-06-20 | 2022-06-20 | Double-disc valve with shearing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218094306U (en) |
-
2022
- 2022-06-20 CN CN202221539726.9U patent/CN218094306U/en active Active
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