CN218845298U - Valve plate sealing ring - Google Patents
Valve plate sealing ring Download PDFInfo
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- CN218845298U CN218845298U CN202223274688.1U CN202223274688U CN218845298U CN 218845298 U CN218845298 U CN 218845298U CN 202223274688 U CN202223274688 U CN 202223274688U CN 218845298 U CN218845298 U CN 218845298U
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- valve plate
- sealing
- pressure relief
- sealing ring
- inlaying
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Abstract
The utility model discloses a valve plate seal ring, including the sealing washer body, the sealing washer body is including inlaying the portion, inlay the sealing part of portion bottom for being the semiarcuation, the section of portion of inlaying is dovetail or trapezium structure, it is fixed with some dovetail groove forms or the cooperation of trapezium groove structure to set up on portion of inlaying and the valve plate, the outer fixed extrusion portion that is provided with of terminal surface of portion of inlaying, the extrusion portion is convex arcuation, just the extrusion portion interval set up in on the inclined plane of portion of inlaying, the terminal surface of sealing washer body sets up for the parallel port. The end face of the sealing ring body, which is opposite to the dovetail groove fixedly formed on the valve plate or the trapezoid groove structure, is fixedly provided with a pressure relief part; the pressure relief portion is arc-shaped or triangular, and the depth of the pressure relief portion is 2-4mm. The sealing ring body is made of high-temperature-resistant silicon rubber, and the maximum temperature tolerance of the sealing ring body is 350 ℃.
Description
Technical Field
The utility model belongs to the technical field of heat accumulation formula heating furnace switching-over valve accessory, concretely relates to valve plate sealing washer.
Background
The reversing valve is the core equipment of the double heat accumulating type heating furnace, and the safe operation of the heating furnace and the normal operation of high-rod production are directly influenced by the operating state of the reversing valve. The heating furnace for the new steel high-speed bar production line adopts an air and coal gas double heat accumulation combustion technology which takes a honeycomb body as a heat accumulator, and adopts a two-position three-way reversing valve of a pneumatic double cylinder to control a reversing sectional centralized reversing system. The reversing valve is divided into 5 sections, and the total number of the reversing valves is 10 to 20, and each pair of reversing valves controls the gas supply or the smoke discharge of a section of gas (air) heat accumulation burner.
The heat accumulating type heating furnace adopts a mode of heating from top to bottom on two sides, and air (coal gas) heat accumulating burners are combined in a left-right matching mode. The reversing control of each segment of gas or air heat accumulation burner is controlled by two-position three-way reversing valves of two double cylinders, each reversing valve consists of a reversing valve body, a control system and a pneumatic air source, the electromagnetic valve of the heat accumulation type heating furnace controls the opening and closing actions of air inlet and air outlet of the reversing valve, and the two proximity switches control the valve rod to be positioned up and down. The reversing valve plays a role in cutting off in the reversing process, and the possibility of short circuit of gas (air) is avoided. When gas or air is fed into the heating furnace, the air cylinders on one side of each section of the heating furnace play a role of passing through an air source, the air cylinders drive the valve rods and the valve plates to seal the smoke outlet, and then the air inlets are opened, so that the gas or the air enters the hearth through the air outlets of the reversing valves to be combusted; the reversing valve at the other side of each section simultaneously seals the air inlet and opens the smoke outlet, and the gas (air) induced draft fan discharges the smoke in the hearth out of the furnace through the heat storage burner, the pipeline along the line, the induced draft fan and the chimney in sequence. The reversing valves on the two sides continuously perform reversing switching actions according to set time, so that one side of the furnace is ensured to burn, and the other side of the furnace is ensured to discharge smoke. Because the reversing period is generally 30-50 s, and the annual action times are more than 100 ten thousand, the reliability, the durability and the sealing performance of the reversing valve of the regenerative heating furnace are very important.
The fluororubber valve plate sealing ring of the reversing valve of the existing regenerative heating furnace has small elasticity and poor sealing performance, works in an environment with large temperature fluctuation for a long time, bears periodic impact of the valve plate and is easy to age or even damage. After the valve plate sealing ring is damaged, the sealing effect of the reversing valve during closing is influenced, the original fluororubber valve plate sealing ring is circular and is fixed on the valve plate in a use state, the valve plate sealing ring is easy to shift in a long-term use state, meanwhile, due to frequent action of a reversing valve cylinder, the abrasion of the sealing ring is more and more serious due to friction of the valve rod and the valve plate sealing ring, and when the sealing ring is abraded to the extent that the air tightness of the reversing valve cannot be guaranteed, coal gas can leak from the reversing valve. Meanwhile, after the valve plate sealing ring of the reversing valve of the heat accumulating type heating furnace is damaged to a certain degree, the valve plate can be in direct contact with the sealing ring cover plate, so that the valve rod vibrates excessively, and if the valve rod cannot be processed for a long time, the valve rod can deform gradually. After the friction between the valve rod and the sealing ring is increased, the valve rod is inflexible in action, and the phenomenon of blocking frequently occurs, so that the normal work of the group of steering systems is influenced.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a valve plate sealing washer, includes the sealing washer body, the sealing washer body is including inlaying the portion, inlay the sealing part of portion bottom for being the semiarc form, it is the dovetail or trapezium structure to inlay a cross-section, inlay and be fixed on portion and the valve plate and set up some dovetail groove forms or the cooperation of trapezium groove structure, the outer terminal surface of portion of inlaying is fixed and is provided with extrusion portion, extrusion portion is convex arc form, just extrusion portion interval set up in on the inclined plane of portion of inlaying.
Further, the end face of the sealing ring body is flat.
Furthermore, a pressure relief part is fixedly arranged on the end face of the sealing ring body, which is opposite to the dovetail groove or the trapezoid groove structure fixedly arranged on the valve plate;
the pressure relief portion is arc-shaped or triangular, and the depth of the pressure relief portion is 2-4mm.
Furthermore, the sealing ring body is made of high-temperature-resistant silicon rubber, and the maximum temperature tolerance of the sealing ring body is 350 ℃.
Further, the pressure relief portion is in a symmetrical arc shape or a symmetrical triangular shape.
Furthermore, the pressure relief part is of a symmetrical arc structure, and the arc structure of the pressure relief part protrudes out of the end face of the sealing ring body;
the symmetrical arc-shaped structures are matched with arc openings fixedly formed in the valve plate.
Further, the dovetail groove structure is an isosceles trapezoid structure, and the cross section of the base is of a solid arch structure.
Compared with the prior art, the beneficial effects of the utility model are that:
the silicon rubber valve plate sealing ring can work in an environment with large temperature fluctuation for a long time, and the arc-shaped solid body of the sealing part at the bottom of the sealing ring body is thickened, so that the sealing part can bear acting force and reacting force, the sealing ring can bear larger pressure, the periodic impact of the valve plate can be repeatedly borne, the aging and even damage are not easy to occur, and the sealing effect when the reversing valve is closed is ensured; the processing degree of difficulty that switching-over valve plate and valve rod are connected has been reduced, has improved the flexibility and the life of valve plate, and through the recess in the middle of the sealing washer body top relief portion, tear resistance when making the whole atress of sealing washer body strengthens, reduces the torn risk of sealing washer, prolongs the life of whole sealing washer, guarantees the gas tightness of switching-over valve, ensures that coal gas can not leak from the switching-over valve.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic view of another state of the present invention;
FIG. 3 is a symmetrical arc-shaped schematic view of the pressure relief portion of the present invention;
FIG. 4 is a schematic view of another state of the relief portion of the present invention;
FIG. 5 is a schematic view showing a state where the flat port has a vertical portion;
FIG. 6 is a schematic view of another state of the present invention with a relief portion;
FIG. 7 is a partially enlarged view of the squeezing portion of the present invention;
FIG. 8 is a schematic cross-sectional view of the valve plate of the present invention;
FIG. 9 is a schematic view of another state of the valve plate of the present invention;
fig. 10 is a schematic view of the connection between the valve plate and the sealing ring body of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Examples
Referring to fig. 1-10, the present invention provides the following technical solutions: the utility model provides a valve plate sealing washer, includes sealing washer body 1, sealing washer body 1 is including inlaying portion 2, inlay 2 bottoms in portion for being the sealing 3 of semiarchy form, 2 cross-sections in portion of inlaying are forked tail trough-shaped or dovetail groove structure, be fixed with some forked tail forms or the trapezoidal structure cooperation of seting up on inlay 2 and the valve plate, the outer terminal surface of portion of inlaying 2 is fixed and is provided with extrusion portion 4, extrusion portion 4 is convex arc-shaped, just 4 intervals in extrusion portion set up in on the inclined plane of portion of inlaying 2 (increase the use friction of valve plate sealing washer and valve plate under the user state, deformation when avoiding the whole atress of sealing washer body removes).
The first embodiment is as follows:
the utility model provides a valve plate sealing washer, includes sealing washer body 1, sealing washer body 1 is including inlaying portion 2, 2 bottoms in the portion of inlaying are the sealing 3 that is the semi-arc form, 2 cross-sections in the portion of inlaying are dovetail or trapezium structure, it cooperates with being fixed with dovetail groove form or the trapezium groove structure of seting up on portion 2 and the valve plate to inlay, the outer fixed terminal surface of portion of inlaying 2 is provided with extrusion portion 4, extrusion portion 4 is convex arc form, just 4 intervals of extrusion portion set up in on the inclined plane of portion of inlaying 2, the terminal surface of sealing washer body 1 sets up for the parallel port.
The sealing ring body is made of a composite silicon rubber material; high temperature resistance, friction resistance and strong impact resistance;
the end face of the sealing ring body 1 arranged in the embodiment is flat, so that the valve plates with different functions can be matched in a use state.
Example two:
the utility model provides a valve plate sealing washer, includes sealing washer body 1, sealing washer body 1 is including inlaying portion 2, inlay 2 bottoms in portion for being the sealing 3 of semiarchy form, 2 cross-sections in portion of inlaying are dovetail or trapezium structure, inlay the dovetail or the trapezium structure cooperation that is fixed to be seted up on portion 2 and the valve plate, the outer terminal surface of portion 2 of inlaying is fixed and is provided with extrusion portion 4, extrusion portion 4 is convex arc form, just 4 intervals of extrusion portion set up in on the inclined plane of portion 2 of inlaying. A pressure relief part 6 is fixedly arranged on the end face of the sealing ring body 1 opposite to the end face of the valve plate on which the dovetail groove or the trapezoid groove structure is fixedly arranged;
the pressure relief part 6 is arc-shaped or triangular, and the depth of the pressure relief part 6 is 2-4mm.
Set up pressure relief portion 6 in the above-mentioned embodiment, just pressure relief portion 6 is arc form or triangle-shaped, bears bigger pressure through pressure relief portion 6's shape under the user state, can bear the periodic impact of valve plate repeatedly, and difficult emergence is ageing even damages, and realizes sealed effect.
Example three:
the utility model provides a valve plate sealing washer, includes sealing washer body 1, sealing washer body 1 is including inlaying portion 2, inlay 2 bottoms in portion for being the sealing 3 of semiarcuation, 2 cross-sections in portion of inlaying are dovetail or trapezium structure, inlay dovetail or the cooperation of trapezoidal groove structure that is fixed to be seted up on portion 2 and the valve plate, the outer terminal surface of portion of inlaying 2 is fixed and is provided with extrusion portion 4, extrusion portion 4 is the convex arc form, just 4 intervals of extrusion portion set up in on the inclined plane of portion of inlaying 2.
A vertical part 5 is arranged between the embedded part 2 and the sealing part 3, and the embedded part 2, the sealing part 3 and the vertical part 5 are arranged in an integral structure;
the height of the vertical part 5 is 2-3mm.
The sealing ring body 1 is made of high-temperature-resistant silicon rubber, and the maximum temperature tolerance of the sealing ring body 1 is 350 ℃.
The corresponding vertical part 5 is arranged in the above embodiment, and the height of the vertical part 5 is 2-3mm, preferably the height of the vertical part 5 is 2mm;
increase the horizontal cross-section of contact surface through setting up the vertical part, the vertical part sets up the arc form, increases holistic extrudability.
Example four:
the utility model provides a valve plate sealing washer, includes sealing washer body 1, sealing washer body 1 is including inlaying portion 2, inlay 2 bottoms in portion for being the sealing 3 of semiarchy form, 2 cross-sections in portion of inlaying are dovetail or trapezium structure, inlay the dovetail or the trapezium structure cooperation that is fixed to be seted up on portion 2 and the valve plate, the outer terminal surface of portion 2 of inlaying is fixed and is provided with extrusion portion 4, extrusion portion 4 is convex arc form, just 4 intervals of extrusion portion set up in on the inclined plane of portion 2 of inlaying. A pressure relief part 6 is fixedly arranged on the end face of the sealing ring body 1 opposite to the end face of the valve plate on which the dovetail groove or the trapezoid groove structure is fixedly arranged;
the pressure relief part 6 is in a symmetrical arc shape or a symmetrical triangular shape.
The pressure relief portion 6 arranged in the above embodiment is in a symmetrical arc shape or a symmetrical triangular shape, and is integrally increased in buffering of the sealing ring body 1 through a structure in which the pressure relief portion is in a symmetrical arc shape or a symmetrical triangular shape.
Example five:
the pressure relief part 6 is of a symmetrical arc structure, and the arc structure of the pressure relief part 6 protrudes out of the end face of the sealing ring body 1;
the symmetrical arc-shaped structures are matched with arc openings fixedly formed in the valve plate.
The arc structure protrusion of pressure relief portion 6 that sets up in above-mentioned embodiment in the terminal surface of sealing washer body 1, under the user state, through the arc structure joint of pressure relief portion 6 is in fixed arc wall on the valve plate, stabilizes the sealing washer body, avoids sealing washer body 1 radial float.
In order to increase the durability and the sealing performance of the sealing ring body 1 in a using state, the trapezoid groove structure is of an isosceles trapezoid structure, and the section of the sealing ring body 1 is of a solid structure.
The utility model discloses a sealing washer can bear bigger effort, is difficult for taking place ageing damage even, guarantees the sealed effect when switching-over valve is closed, and can guarantee to reduce the rigid impact of sealing washer body 1 under the user state through setting up of 1 top pressure relief portion 6 of sealing washer body, can increase the sealing washer body under the user state, 2 cross-sections of portion of inlaying are dovetail or trapezium structure, make sealing washer body 1 avoid carrying out the drunkenness on the valve plate, and anti tear performance is strengthened during whole atress, reduces the torn risk of sealing washer, prolongs the life of whole sealing washer, guarantees the gas tightness of switching-over valve, ensures that coal gas can not leak from switching-over valve, avoids the valve plate can and sealing washer apron direct contact, leads to the deformation of the too big production of valve rod vibrations.
Finally, it should be noted that: in the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "disposed", "connected", "fixed", "screwed" and the like are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a valve plate sealing washer, includes sealing washer body (1), its characterized in that: sealing washer body (1) is including inlaying portion (2), inlay portion (2) bottom for being sealing (3) of semiarcuation, inlay portion (2) cross-section and be dovetail or trapezium structure, it is fixed on portion (2) and the valve plate to set up some dovetail groove forms or the cooperation of dovetail groove structure, the outer terminal surface of portion (2) is fixed and is provided with extrusion portion (4), extrusion portion (4) are protruding arcuation, just extrusion portion (4) interval set up in on the inclined plane of portion (2) inlays.
2. A valve plate seal ring according to claim 1, wherein: the end face of the sealing ring body (1) is flat.
3. A valve plate seal ring according to claim 1, wherein: a pressure relief part (6) is fixedly arranged on the end face of the sealing ring body (1) opposite to the end face of the valve plate on which the dovetail groove or the trapezoid groove structure is fixedly arranged;
the pressure relief portion (6) is arc-shaped or triangular, and the depth of the pressure relief portion (6) is 2-4mm.
4. A valve plate seal ring according to claim 1, wherein: a vertical part (5) is arranged between the embedded part (2) and the sealing part (3), and the embedded part (2), the sealing part (3) and the vertical part (5) are arranged in an integrated structure;
the height of the vertical part (5) is 2-3mm.
5. A valve plate seal ring according to claim 1, wherein: the sealing ring body (1) is made of high-temperature-resistant silicon rubber, and the maximum temperature tolerance of the sealing ring body (1) is 350 ℃.
6. A valve plate seal ring according to claim 3, wherein: the pressure relief portion (6) is in a symmetrical arc shape or a symmetrical triangular shape.
7. The valve plate seal ring of claim 6, wherein: the pressure relief part (6) is of a symmetrical arc structure, and the arc structure of the pressure relief part (6) protrudes out of the end face of the sealing ring body (1);
the symmetrical arc-shaped structures are matched with arc openings fixedly formed in the valve plate.
8. A valve plate seal ring according to claim 1, wherein: the trapezoid groove structure is an isosceles trapezoid structure, and the cross section of the sealing part (3) is of a solid arch structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223274688.1U CN218845298U (en) | 2022-12-07 | 2022-12-07 | Valve plate sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223274688.1U CN218845298U (en) | 2022-12-07 | 2022-12-07 | Valve plate sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218845298U true CN218845298U (en) | 2023-04-11 |
Family
ID=87306018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223274688.1U Active CN218845298U (en) | 2022-12-07 | 2022-12-07 | Valve plate sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218845298U (en) |
-
2022
- 2022-12-07 CN CN202223274688.1U patent/CN218845298U/en active Active
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