CN210034498U - High-performance valve seat sealing structure and track type ball valve comprising same - Google Patents
High-performance valve seat sealing structure and track type ball valve comprising same Download PDFInfo
- Publication number
- CN210034498U CN210034498U CN201920522612.5U CN201920522612U CN210034498U CN 210034498 U CN210034498 U CN 210034498U CN 201920522612 U CN201920522612 U CN 201920522612U CN 210034498 U CN210034498 U CN 210034498U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- sealing ring
- ring
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 144
- 238000007790 scraping Methods 0.000 claims abstract description 25
- 238000005406 washing Methods 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000009991 scouring Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to a high performance disk seat seal structure reaches rail mounted ball valve including this disk seat seal structure, including valve body, spheroid, outer disk seat circle and interior disk seat circle, in the valve body was located to the spheroid, outer disk seat circle and interior disk seat circle were located between spheroid and the valve body, and interior disk seat circle is located outer disk seat circle inboard, and interior disk seat circles and is equipped with and is used for with the interior soft sealing washer of spheroid sealing complex, and outer disk seat circles and is equipped with the doctor-bar and be used for with the outer soft sealing washer of spheroid sealing complex, and the doctor-bar is located the outer soft sealing washer outside. The utility model adopts multiple sealing, the scraping piece will firstly scrape the impurities on the ball body, and protect the sealing ring at the inner side; along with the rolling of the ball body, the outer soft sealing ring is gradually compressed to realize sealing; if the outer soft sealing ring is damaged, the outer soft sealing ring assists the scraping blade to remove impurities on the sealing surface, and meanwhile, the outer soft sealing ring bears a large amount of medium scouring to protect the inner soft sealing ring which plays a main sealing role, so that the service life of the valve can be prolonged; meanwhile, the inner soft sealing ring and the outer soft sealing ring are convenient to replace.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to high performance disk seat seal structure and including this disk seat seal structure's rail mounted ball valve.
Background
The orbit ball valve is also called as a forced seal ball valve, and is generally applied to occasions with strict sealing requirements because the structure characteristic is forced seal. The track ball valve is generally divided into a soft sealing valve seat structure and a hard sealing valve seat structure, and the actual sealing effect of the track sealing ball valve with the two structures is not ideal because the structure is complex and the process manufacturing difficulty is large! Conventional soft seal rail mounted ball valve because of it only one soft seal, the sealed face of impurity very easy damage in the on-the-spot medium of practical application, and lead to sealed inefficacy, simultaneously because rail mounted ball valve is for forcing the sealed valve, general condition disk seat and valve body are tight fit or welding, and the replacement difficulty after the disk seat soft seal circle damages.
The sealing surface of the full-hard sealing track type ball valve is damaged relatively better by adopting metal sealing and relatively soft sealing materials, but the sealing effect of the track ball valve cannot be similar to that of a soft sealing track ball valve because the structure of the track ball valve realizes that a ball body is forced to be close to a valve seat to realize sealing by adopting a track special structure, the overall structure of the track ball valve is relatively complex and is difficult to realize zero leakage, and the sealing effect of the track ball valve is relatively less in application in actual working conditions because the track ball valve has the problems of difficulty in replacement after the valve seat is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at providing high performance disk seat seal structure and reach the rail mounted ball valve including this disk seat seal structure, sealing performance is reliable, can prolong the valve life-span.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
high performance disk seat seal structure, including valve body, spheroid, outer disk seat circle and interior disk seat circle, the spheroid is located in the valve body, outer disk seat circle and interior disk seat circle are located between spheroid and the valve body, interior disk seat circle is located outer disk seat circle inboard, interior disk seat circles and is equipped with and is used for with the interior soft sealing washer of spheroid seal complex, outer disk seat circles and is equipped with the doctor-bar and is used for with the outer soft sealing washer of spheroid seal complex, and the doctor-bar is located the outer soft sealing washer outside.
Furthermore, the inner valve seat ring is provided with a groove A for mounting the inner soft sealing ring, the outer valve seat ring is provided with a groove B for mounting the inner soft sealing ring, and the inner soft sealing ring is arranged in the groove A and the groove B simultaneously.
Preferably, the inner soft sealing ring is a triangular sealing ring.
Furthermore, a groove C for installing a scraping blade and a groove D for installing an outer soft sealing ring are formed in the outer valve seat ring, the scraping blade is installed in the groove C, and the outer soft sealing ring is pressed in the groove D by the scraping blade.
Preferably, the outer soft sealing ring is a triangular sealing ring.
Furthermore, the excircle face of outer valve seat circle and the valve cavity wall tight fit of valve body, interior valve seat circle is compressed tightly or interior valve seat circle and outer valve seat circle rigid coupling together by outer valve seat circle, the contact surface of interior valve seat circle and outer valve seat circle is the stair structure.
Furthermore, an axial sealing ring is arranged between the outer circular surface of the outer valve seat ring and the valve body.
Furthermore, an end face sealing ring is arranged between the end face of the inner valve seat ring and the valve body.
Further, be equipped with sealed face washing passageway on the outer disk seat, be provided with the valve body washing passageway that washs the passageway intercommunication with sealed face on the valve body, sealed face washing passageway one end runs through outer disk seat circle and spheroid complex one side, and the other end of sealed face washing passageway and the inner intercommunication of valve body washing passageway, the outer end of valve body washing passageway runs through the valve body surface, and the outer end of valve body washing passageway is equipped with sealing device.
The track type ball valve comprises the high-performance valve seat sealing structure, a valve cover, an upper valve rod and a lower valve rod, wherein the upper valve rod and the lower valve rod form the valve rod, the valve cover is arranged above the valve body and is fixedly connected with the valve body, the lower valve rod is connected with the ball body, a guide groove is formed in the lower valve rod, a guide pin is arranged on the valve cover, and the guide pin is in sliding fit with the guide groove.
Compared with the prior art, the utility model discloses following beneficial effect has:
1, the utility model adopts multiple sealing, the scraping blade firstly scrapes off impurities on the ball body and protects the sealing ring at the inner side; as the ball body continues to roll, the outer soft sealing ring is gradually compressed to realize sealing; if the outer soft sealing ring is damaged, the outer soft sealing ring assists the scraping sheet to remove impurities on the sealing surface, and meanwhile, the outer soft sealing ring bears a large amount of medium scouring and protects the inner soft sealing ring; due to the protection of the outer side scraping blade and the outer soft sealing ring, the sealing life of the inner soft sealing ring playing a main sealing role is greatly prolonged, and the service life of the valve is prolonged;
2, the inner soft sealing ring and the outer soft sealing ring in the utility model are clamped and fixed by two parts, and the sealing ring is convenient to replace after being damaged;
3, the utility model discloses be equipped with sealed face and wash the passageway, can wash the sealed face of spheroid, can effectively prolong the life of sealing washer, ensure that the sealing performance of valve is reliable for a long time.
Drawings
FIG. 1 is a schematic structural view of a middle rail ball valve according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic view of the structure of the sealing device;
in the figure: 1-valve body, 2-ball body, 3-outer valve seat ring, 4-inner valve seat ring, 5-inner soft sealing ring, 6-outer soft sealing ring, 7-scraping piece, 8-circumferential sealing ring, 9-end face sealing ring, 10-small ball valve, 11-plug screw, 12-sealing face cleaning channel, 13-valve cover, 14-upper valve rod, 15-lower valve rod and 16-guide pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 2, the utility model discloses a high performance disk seat seal structure, including valve body 1, spheroid 2, outer disk seat circle 3 and interior disk seat circle 4, spheroid 2 is located in valve body 1, and outer disk seat circle 3 and interior disk seat circle 4 are located between spheroid 1 and the valve body 1, and interior disk seat circle 4 is located outer disk seat circle 3 inboardly, is equipped with on the interior disk seat circle 4 to be used for with the sealed complex of spheroid 2 interior soft seal circle 5, is equipped with doctor-bar 7 on the outer disk seat circle 3 and is used for with the sealed complex outer soft seal circle 6 of spheroid 2, and doctor-bar 7 is located the 6 outsides of outer soft seal circle.
A groove A for mounting an inner soft sealing ring 5 is arranged on the inner valve seat ring 4, a groove B for mounting the inner soft sealing ring 5 is arranged on the step surface of the outer valve seat ring 3, and the inner soft sealing ring 5 is simultaneously arranged in the groove A and the groove B. The inner soft sealing ring 5 can be in the shape of an O-shaped sealing ring, a triangular sealing ring and the like. In the specific embodiment, the inner soft sealing ring 5 is a triangular sealing ring, the bottom of the triangular sealing ring is clamped by the inner valve seat ring 4 and the outer valve seat ring 3, and the installation is more stable. The rising end of the inner soft sealing ring 5 is in sealing fit with the ball body 2. The inner soft sealing ring 5 is clamped and fixed by the inner valve seat ring 4 and the outer valve seat ring 3, and is convenient to replace.
The outer valve seat ring 3 is provided with a groove C for mounting a scraping sheet 7 and a groove D for mounting an outer soft sealing ring 6, the scraping sheet 7 is mounted in the groove C, and the outer soft sealing ring 6 is pressed in the groove D by the scraping sheet 7. The outer soft sealing ring 6 can be in the shape of an O-shaped sealing ring, a triangular sealing ring and the like. In the specific embodiment, the outer soft sealing ring 6 is a triangular sealing ring, and the bottom of the triangular sealing ring is clamped by the scraping piece 7 and the outer valve seat ring 3, so that the installation is more stable. The protruding end of the outer soft sealing ring 6 and the protruding end of the scraping sheet 7 are matched with the ball body 2. The scraping piece 7 has certain deformability, the scraping piece 7 is convenient to mount and dismount, and the outer soft sealing ring 6 is clamped and fixed by the scraping piece 7 and the outer valve seat ring 3 and is also convenient to replace.
In this embodiment, the outer disc of outer valve seat circle 3 and the valve chamber wall tight fit of valve body 1, can design outer valve seat circle 3's external diameter to be equal with the valve chamber wall internal diameter of valve body 1, or outer valve seat circle 3's external diameter is a bit bigger than the valve chamber wall internal diameter of valve body 1, realizes the tight fit. In order to ensure the replaceability and the sealing performance of the valve seat, an axial sealing ring 8 is arranged between the outer circular surface of the outer valve seat ring 3 and the valve body 1, and an end surface sealing ring 9 is arranged between the end surface of the inner valve seat ring 4 and the valve body 1, so that the leakage of a medium from the middle cavity of the valve body through the outer circle of the outer valve seat ring 3 and the bottom surface of the inner valve seat ring 4 can be avoided.
Of course, the fixing mode of the outer valve seat ring 3 and the valve body 1 can also adopt the connecting mode of the valve seat and the valve body 1 in the prior art.
The inner valve seat ring 4 is pressed by the outer valve seat ring 3 or the inner valve seat ring 4 is fixedly connected with the outer valve seat ring 3, and the inner valve seat ring 4 and the outer valve seat ring 3 can be fixedly connected by threads. The contact surface of the inner valve seat ring 4 and the outer valve seat ring 3 is of a step structure.
Be equipped with sealed face washing passageway 12 on the outer valve seat circle 3, be provided with the valve body washing passageway that washs passageway 12 intercommunication with sealed face on the valve body, sealed face washing passageway 12 one end runs through outer valve seat circle 3 and spheroid 2 complex one side, and the other end of sealed face washing passageway 12 communicates with the inner of valve body washing passageway, and 1 surface of valve body is run through to the outer end of valve body washing passageway, and the outer end of valve body washing passageway is equipped with sealing device. As shown in fig. 3, the sealing means includes a small ball valve 10 and a plug screw 11, one port of the small ball valve 10 is communicated with the outer end of the valve body cleaning passage, and the other port of the small ball valve 10 is blocked by the plug screw 11.
When the valve is used, the screw plug 11 is taken down, the small ball valve 10 is opened, cleaning liquid is injected from the port of the small ball valve 10, the cleaning liquid enters the sealing surface cleaning channel 12 from the valve body cleaning channel and reaches the sealing surface of the ball body, the sealing surface of the ball body is cleaned, the service life of the sealing ring can be effectively prolonged, and the long-term reliability of the sealing performance of the valve is ensured.
The utility model discloses a rail mounted ball valve, as shown in fig. 1, 2, rail mounted ball valve is except including above-mentioned high performance disk seat seal structure, still includes valve gap 13 and constitutes the last valve rod 14 and the lower valve rod 15 of valve rod, valve gap 13 locate 1 top of valve body and with 1 fixed connection of valve body, lower valve rod 15 is connected with spheroid 2, is equipped with the guide way on the lower valve rod 15, and uide pin 16 is installed on valve gap 13, uide pin 16 and guide way sliding fit.
The working principle is as follows:
and (3) closing process: the track ball valve rod drives the spheroid 2 to make 90 rotations, and through the track structure, after spheroid 2 rotated 90, it is close to gradually to the rolling of valve seat circle, realizes forcing seal at last.
When the ball body 2 is gradually close to the sealing ring, the scraping blade 7 firstly scrapes off impurities on the ball body 2, the ball body 2 continuously rolls, and the outer soft sealing ring 6 is gradually compressed to realize sealing. If the outer soft sealing ring 6 is damaged, the outer soft sealing ring 6 assists the scraping sheet 7 to remove impurities on the sealing surface, and meanwhile, the outer soft sealing ring 6 bears a large amount of medium scouring to protect the inner soft sealing ring 5. The inner soft sealing ring 5 at the inner side mainly plays a sealing role, and due to the protection of the outer scraping blade 7 and the outer soft sealing ring 6, the sealing service life of the inner soft sealing ring 5 playing a main sealing role is greatly prolonged, and the service life of the valve is prolonged.
Of course, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and that such changes and modifications are intended to be included within the scope of the appended claims.
Claims (10)
1. The high-performance valve seat sealing structure is characterized by comprising a valve body, a ball body, an outer valve seat ring and an inner valve seat ring, wherein the ball body is arranged in the valve body, the outer valve seat ring and the inner valve seat ring are arranged between the ball body and the valve body, the inner valve seat ring is positioned on the inner side of the outer valve seat ring, an inner soft sealing ring used for being in sealing fit with the ball body is arranged on the inner valve seat ring, a scraping piece and an outer soft sealing ring used for being in sealing fit with the ball body are arranged on the outer valve seat ring, and the scraping piece is positioned on the.
2. The high performance valve seat sealing structure according to claim 1, wherein: the inner valve seat ring is provided with a groove A for mounting the inner soft sealing ring, the outer valve seat ring is provided with a groove B for mounting the inner soft sealing ring, and the inner soft sealing ring is simultaneously arranged in the groove A and the groove B.
3. The high performance valve seat sealing structure according to claim 2, wherein: the inner soft sealing ring is a triangular sealing ring.
4. The high performance valve seat sealing structure according to claim 1, 2 or 3, wherein: the outer valve seat ring is provided with a groove C for mounting a scraping piece and a groove D for mounting an outer soft sealing ring, the scraping piece is mounted in the groove C, and the outer soft sealing ring is pressed in the groove D by the scraping piece.
5. The high performance valve seat sealing structure according to claim 4, wherein: the outer soft sealing ring is a triangular sealing ring.
6. The high performance valve seat sealing structure according to claim 1, wherein: the excircle face of outer valve seat circle and the valve chamber wall tight fit of valve body, interior valve seat circle is compressed tightly or interior valve seat circle and outer valve seat circle rigid coupling together by outer valve seat circle, the contact surface of interior valve seat circle and outer valve seat circle is the stair structure.
7. The high performance valve seat sealing structure according to claim 1 or 6, wherein: an axial sealing ring is arranged between the outer circular surface of the outer valve seat ring and the valve body.
8. The high performance valve seat sealing structure according to claim 7, wherein: and an end face sealing ring is arranged between the end face of the inner valve seat ring and the valve body.
9. The high performance valve seat sealing structure according to claim 1, wherein: the utility model discloses a ball valve, including outer disk seat circle, be provided with sealed face washing passageway on the valve body, be provided with on the outer disk seat circle and wash the passageway with sealed valve body that face washing passageway communicates, sealed face washing passageway one end runs through outer disk seat circle and spheroid complex one side, and the other end of sealed face washing passageway and the inner intercommunication of valve body washing passageway, the outer end of valve body washing passageway runs through the valve body surface, and the outer end of valve body washing passageway is equipped with sealing device.
10. An orbital ball valve comprising a high-performance valve seat sealing structure according to any one of claims 1 to 9, characterized in that: the ball valve further comprises a valve cover, an upper valve rod and a lower valve rod, the upper valve rod and the lower valve rod form the valve rod, the valve cover is arranged above the valve body and fixedly connected with the valve body, the lower valve rod is connected with the ball body, a guide groove is formed in the lower valve rod, a guide pin is installed on the valve cover, and the guide pin is in sliding fit with the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522612.5U CN210034498U (en) | 2019-04-17 | 2019-04-17 | High-performance valve seat sealing structure and track type ball valve comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522612.5U CN210034498U (en) | 2019-04-17 | 2019-04-17 | High-performance valve seat sealing structure and track type ball valve comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034498U true CN210034498U (en) | 2020-02-07 |
Family
ID=69359866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920522612.5U Active CN210034498U (en) | 2019-04-17 | 2019-04-17 | High-performance valve seat sealing structure and track type ball valve comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828668A (en) * | 2019-04-17 | 2020-10-27 | 成都成高阀门有限公司 | High-performance valve seat sealing structure and track type ball valve comprising same |
-
2019
- 2019-04-17 CN CN201920522612.5U patent/CN210034498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828668A (en) * | 2019-04-17 | 2020-10-27 | 成都成高阀门有限公司 | High-performance valve seat sealing structure and track type ball valve comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210034498U (en) | High-performance valve seat sealing structure and track type ball valve comprising same | |
| CN219866322U (en) | Double-sealing structure and metal butterfly valve | |
| CN111828668A (en) | High-performance valve seat sealing structure and track type ball valve comprising same | |
| CN110748652B (en) | Vacuum die-casting stop valve of hydraulic pump | |
| CN203500596U (en) | Hard-and-soft sealing structure of valve flap of spring type safety valve | |
| CN212131375U (en) | Wear-resistant and corrosion-resistant ball valve | |
| CN205278506U (en) | Novel resistant high pressure isolating valve | |
| CN211010311U (en) | L NG loading and unloading are with single chamber formula rotary joint | |
| CN213271105U (en) | Double-channel metal hard sealing ball valve | |
| CN209959887U (en) | Stop valve for building pipeline | |
| CN210599645U (en) | Sealed oil cylinder | |
| CN202708128U (en) | Stop valve | |
| CN206988437U (en) | A kind of high pressure sealing valve | |
| CN207514278U (en) | A kind of single valve seat globe valve | |
| CN111255912A (en) | Hemisphere valve with from clear function | |
| CN210290774U (en) | Corrugated pipe stop valve | |
| CN202327175U (en) | Ball valve | |
| CN211501762U (en) | Spring check valve | |
| CN215172408U (en) | Ball valve with hole | |
| CN219954245U (en) | Nuclear power is with reducing frictional stop valve | |
| CN216343943U (en) | Y-shaped stop valve | |
| CN220302801U (en) | High-tightness small valve body | |
| CN212804346U (en) | Cut-off valve with double V-shaped notches | |
| CN218510213U (en) | Gate valve | |
| CN220540319U (en) | Bellows gas seal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 67, Section 1, Xueshan Avenue, Dayi County, Chengdu City, Sichuan Province, 611330 Patentee after: Chengdu Chenggao Valve Co.,Ltd. Patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd. Address before: 610000 Industrial Road, Jinyuan Town, Dayi County, Chengdu, Sichuan Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. Patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd. |