CN220060612U - Double-sealing ball valve seat structure - Google Patents
Double-sealing ball valve seat structure Download PDFInfo
- Publication number
- CN220060612U CN220060612U CN202320931725.7U CN202320931725U CN220060612U CN 220060612 U CN220060612 U CN 220060612U CN 202320931725 U CN202320931725 U CN 202320931725U CN 220060612 U CN220060612 U CN 220060612U
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- CN
- China
- Prior art keywords
- valve seat
- sealing ring
- ring
- devlon
- material sealing
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 98
- 239000000463 material Substances 0.000 claims abstract description 61
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 32
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 32
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 6
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a double-sealing ball valve seat structure, which comprises a valve cover and a ball body, wherein a valve seat ring is arranged between the valve cover and the ball body, one surface of the valve seat ring, which faces the ball body, is provided with a sealing groove, and a sealing ring is arranged in the sealing groove, wherein the sealing ring comprises a DEVLON material sealing ring and a PEEK material sealing ring, and the DEVLON material sealing ring is positioned above the PEEK material sealing ring. According to the utility model, the DEVLON material sealing ring and the PEEK material sealing ring are combined together, so that the problem that the friction coefficient of the pure PEEK material sealing ring is large is avoided, and the problem that the pure DEVLON material sealing ring is not corrosion-resistant and not wear-resistant is also avoided. Meanwhile, the two are combined to play a role of double sealing, and when one of the two is invalid, the other can still be sealed, so that the service life of the ball valve is greatly prolonged.
Description
Technical Field
The utility model relates to the field of ball valves, in particular to a double-sealing ball valve seat structure.
Background
In the structure of the existing ball valve which is sealed by means of a plastic sealing ring between a ball body and a valve seat, the sealing ring is single in material and is made of a single PEEK material ring or a DEVLON material ring. The switching process of the ball valve is that the valve seat sealing ring slides on the ball body to rub, the friction coefficient of the pure PEEK is large, the pure DEVLON is not corrosion-resistant and not wear-resistant, both can cause the scratch of the sealing surfaces of the ball body and the valve seat, the leakage of the valve is caused, and the service life of the ball valve is shortened.
Disclosure of Invention
The utility model aims to provide a double-sealing ball valve seat structure, which ensures the sealing effect by combining a PEEK ring and a DEVLON ring.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a dual-seal's ball valve disk seat structure, includes valve gap and spheroid, be provided with the valve seat circle between valve gap and the spheroid, the sealing groove has been seted up towards the spheroid one side to the valve seat circle, be provided with the sealing ring in the sealing groove, wherein, the sealing ring includes DEVLON material sealing ring and PEEK material sealing ring, just the DEVLON material sealing ring is located the top of PEEK material sealing ring.
Further, the DEVLON material sealing ring and the PEEK material sealing ring are fixed together through an adhesive mode.
Furthermore, the sealing groove is of a trapezoid structure, and the area of the DEVLON material sealing ring is larger than that of the PEEK material sealing ring.
Further, be provided with first annular groove on the disk seat circle, be provided with a plurality of second recesses on the valve gap, the oil retaining seal circle has been gone into to the card in the first annular groove, be provided with the disk seat spring in the second recess.
Further, one end of the valve seat spring is fixedly arranged in the second groove in an adhering mode, and the other end of the valve seat spring abuts against the valve seat ring.
Further, the valve seat ring is further provided with a third annular groove, and a flame-retardant sealing ring is embedded in the third annular groove.
Further, a ring of plug ring is nested on the valve seat ring.
The double-sealing ball valve seat structure provided by the utility model has the advantages that:
according to the utility model, the DEVLON material sealing ring and the PEEK material sealing ring are combined together, so that the problem that the friction coefficient of the pure PEEK material sealing ring is large is avoided, and the problem that the pure DEVLON material sealing ring is not corrosion-resistant and not wear-resistant is also avoided. Meanwhile, the two are combined to play a role of double sealing, and when one of the two is invalid, the other can still be sealed, so that the service life of the ball valve is greatly prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a part of a valve seat structure according to the present utility model;
reference numerals in the drawings illustrate: 1. a sphere; 2. a DEVLON material seal ring; 3. a PEEK material sealing ring; 4. flame-retardant sealing rings; 5. a valve seat ring; 6. an oil blocking sealing ring; 7. a valve cover; 8. a plug ring; 9. a valve seat spring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, an embodiment of the present utility model is provided: the utility model provides a dual-seal's ball valve disk seat structure, includes valve gap 7 and spheroid 1, be provided with valve seat circle 5 between valve gap 7 and the spheroid 1, the round seal groove has been seted up towards spheroid 1 one side to valve seat circle 5, the cross-section of seal groove is trapezium structure, just the thickness of seal groove is the thickness of eighth valve seat circle 5 to do not influence the intensity of valve seat circle 5.
Be provided with the sealing ring in the seal groove, seal between spheroid 1 and valve seat ring 5 through the sealing ring, wherein, the sealing ring includes DEVLON material sealing ring 2 and PEEK material sealing ring 3, just DEVLON material sealing ring 2 is located the top of PEEK material sealing ring 3.
Meanwhile, in order to increase the firmness of the connection between the two, the DEVLON material sealing ring 2 and the PEEK material sealing ring 3 are fixed together through gluing. And the thickness of the DEVLON material sealing ring 2 is the same as the thickness of the PEEK material sealing ring 3. Meanwhile, since the DEVLON material seal ring 2 is located above the PEEK material seal ring 3, the area of the DEVLON material seal ring 2 is larger than that of the PEEK material seal ring 3.
Simultaneously, the surfaces of DEVLON material sealing ring 2 and PEEK material sealing ring 3 all are coated with glue to be fixed in the seal groove through sticky mode, prevent the problem that drops after long-time use.
Meanwhile, a first annular groove is formed in the valve seat ring 5, a plurality of second grooves are formed in the valve cover 7, an oil blocking sealing ring 6 is clamped in the first annular groove, and a valve seat spring 9 is arranged in the second groove. Wherein, one end of the valve seat spring 9 is fixedly arranged in the second groove in an adhering way, and the other end is propped against the valve seat ring 5. By the above structure, the sealability of the whole valve seat structure is further enhanced.
In this embodiment, a third annular groove is further provided on the valve seat ring 5, and a flame-retardant sealing ring 4 is embedded in the third annular groove. (see patent application CN103524951B for flame-retardant sealing ring 4), the valve seat has a flame-retardant and fireproof function through the flame-retardant sealing ring 4.
And a ring of universal plug ring 8 is nested on the valve seat ring 5, and the universal plug ring 8 is sleeved on the valve seat ring 5. The valve seat 5 and the valve cover 7 are sealed by a universal plug 8.
In a specific operation, the DEVLON material sealing ring 2 and the PEEK material sealing ring 3 are fixed together in an adhesive mode, and then the surfaces of the DEVLON material sealing ring 2 and the PEEK material sealing ring are coated with glue and then inserted into a sealing groove on the valve seat ring 5.
And then the flame-retardant sealing ring 4 and the oil-retaining sealing ring 6 are arranged in corresponding grooves on the valve seat ring 5, and the universal plug ring 8 is arranged on the valve seat ring 5.
The valve seat spring 9 is installed in the valve cover 7, the valve seat ring 5 is installed in the valve cover 7, and the sealing surface of the valve seat ring 5 is attached to the ball 1, so that the DEVLON material sealing ring 2 and the PEEK material sealing ring 3 are attached to the ball 1.
The valve seat ring 5 and the ball body 1 are sealed by means of the DEVLON material sealing ring 2 and the PEEK material sealing ring 3, and the valve cover 7 and the valve seat ring 5 are sealed by means of the plug ring 8. The DEVLON material sealing ring 2 is relatively soft, and the PEEK material sealing ring 3 plays a certain supporting role, so that the sealing is ensured, and meanwhile, the PEEK material sealing ring is not worn too early. The PEEK material sealing ring 3 has high hardness, and the DEVLON material sealing ring 2 has a certain compensation effect on the PEEK material sealing ring, so that the abrasion of a sealing surface is slowed down. Even if any one of the two sealing rings fails, the other sealing ring is still sealed, so that the double sealing effect is ensured.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The apparatus embodiments described above are merely illustrative, wherein elements illustrated as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. A double-seal ball valve seat structure is characterized in that: including valve gap and spheroid, be provided with the valve seat circle between valve gap and the spheroid, the sealing groove has been seted up towards the spheroid one side to the valve seat circle, be provided with the sealing ring in the sealing groove, wherein, the sealing ring includes DEVLON material sealing ring and PEEK material sealing ring, just the DEVLON material sealing ring is located the top of PEEK material sealing ring.
2. A dual seal ball valve seat structure as defined in claim 1 wherein: the DEVLON material sealing ring and the PEEK material sealing ring are fixed together in an adhesive mode.
3. A dual seal ball valve seat structure as defined in claim 2 wherein: the seal groove is of a trapezoid structure, and the area of the DEVLON material seal ring is larger than that of the PEEK material seal ring.
4. A dual seal ball valve seat structure as defined in claim 1 wherein: the valve seat ring is provided with a first annular groove, the valve cover is provided with a plurality of second grooves, an oil blocking sealing ring is clamped in the first annular groove, and a valve seat spring is arranged in the second groove.
5. The dual seal ball valve seat structure as defined in claim 4 wherein: one end of the valve seat spring is fixedly arranged in the second groove in an adhering mode, and the other end of the valve seat spring abuts against the valve seat ring.
6. The dual seal ball valve seat structure as defined in claim 4 wherein: the valve seat ring is further provided with a third annular groove, and a flame-retardant sealing ring is embedded in the third annular groove.
7. The dual seal ball valve seat structure as defined in claim 4 wherein: a ring of plug ring is nested on the valve seat ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320931725.7U CN220060612U (en) | 2023-04-23 | 2023-04-23 | Double-sealing ball valve seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320931725.7U CN220060612U (en) | 2023-04-23 | 2023-04-23 | Double-sealing ball valve seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220060612U true CN220060612U (en) | 2023-11-21 |
Family
ID=88749459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320931725.7U Active CN220060612U (en) | 2023-04-23 | 2023-04-23 | Double-sealing ball valve seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220060612U (en) |
-
2023
- 2023-04-23 CN CN202320931725.7U patent/CN220060612U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |