CN2883819Y - Scraper type two-way high temp metal hard sealing ball valve - Google Patents
Scraper type two-way high temp metal hard sealing ball valve Download PDFInfo
- Publication number
- CN2883819Y CN2883819Y CN 200520134037 CN200520134037U CN2883819Y CN 2883819 Y CN2883819 Y CN 2883819Y CN 200520134037 CN200520134037 CN 200520134037 CN 200520134037 U CN200520134037 U CN 200520134037U CN 2883819 Y CN2883819 Y CN 2883819Y
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- CN
- China
- Prior art keywords
- valve
- valve seat
- seat
- valve body
- floating
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a metal hard sealing ball valve which is blade-type dual-way high temperature, comprising a valve body, a valve seat, a valve rod, a plurality of sealing parts and a plurality of setting parts. The valve body is divided into a left valve body and a right valve body, which are connected by the setting parts; a valve seat is arranged inside the left valve body and the right valve body; wherein a valve seat is a floating valve seat, namely, the valve seat and the valve body are connected between the seat valve seats in float; a blade which is contacted with the ball body is arranged on the left and the right valve seat, mainly a sealing device is arranged between the valve body beside the valve chamber and the floating valve seat, effectively preventing the medium impurity inside the valve chamber from entering the empty chamber at the spring between the valve seats, avoiding the impurity expansion to block the valve seat and the ball body expansion under the high temperature to jam the valve. The utility model has the advantages of freely floating valve seat, and flexibly and reliable opening and closing of the valve. The utility model is especially applicable to the valve switch on the pipelines in the coal refining oil engineering device.
Description
Technical field
The utility model relates to a kind of metal hard-sealing ball valve, particularly about a kind of metal hard-sealing ball valve with doctor blade device.The utility model is applicable to the valve switch of coal oil refining design library part editor and reuse pipeline.
Background technique
Scraper type two-way high-temperature metal hard-sealed ball valve is generally used in high temperate zone granule medium operating mode, its structure mainly is made up of valve body, valve seat, spheroid, valve rod and Sealing and assembling set, valve body is that left valve barrel is connected by assembling set with right valve barrel, be respectively equipped with valve seat in left valve barrel and the right valve barrel, fixedly mount between one of them valve seat and the valve body, float between another valve seat and the valve body and install, be used for absorbing the high temperature swell increment, prevent that high temperature expansion back spheroid from expanding dead between valve seat.Simultaneously, left and right sides valve seat is made scraper respectively and is contacted with spheroid, scrapes off the particulate matter of coking at spherome surface in the valve opening and closing process, avoids the wearing and tearing of the particulate matter of spherome surface to sealing surface of seat.Be provided with spring between floating valve seat and the valve body, utilize the elasticity absorption spheroid of spring and the high temperature of valve seat to expand, it is dead to avoid spheroid high temperature to expand.But, the subject matter that existing domestic and international scraper type two-way high-temperature metal hard-sealed ball valve exists is: since between floating valve seat and the valve body for movingly, both do not establish seal arrangement in the valve pocket side, in use, medium impurity in the valve pocket can be by the matching gap between floating valve seat and the valve body, enters between spring and the valve body in the cavity, floating valve seat and valve body are expanded extremely and can't float, spheroid and valve seat expand extremely when high temperature occurring, and ball valve can not be opened and closed flexibly.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, provides a kind of floating valve seat to float flexibly, and the worst hot case spheroid can not expand extremely, opens and closes the scraper type two-way high-temperature metal hard-sealed ball valve of flexibility and reliability.
The technological scheme that realizes the utility model purpose comprises valve body, valve seat, spheroid, valve rod and Sealing and assembling set, valve body is that left valve barrel is connected by assembling set with right valve barrel, be respectively equipped with valve seat in left valve barrel and the right valve barrel, one of them valve seat is a floating valve seat, both floated between valve seat and the valve body and installed, left and right sides valve seat is made scraper respectively and is contacted with spheroid, mainly be between the valve body of valve pocket side and floating valve seat, seal arrangement to be set, the sealing device is made up of seal ring and pressure ring, and pressure ring is fixedly installed on the valve body.
In above technological scheme, seal ring adopts high temperature resistant graphite material.
In above technological scheme, be provided with self-tightening sealing device between floating valve seat and the valve body, this self-tightening sealing device is made up of graphite-seal ring between valve body and the valve seat and pressure ring, and pressure ring is located between graphite-seal ring and the butterfly spring sheet.
The utility model beneficial effect compared with prior art is: be provided with the seal arrangement of being made up of graphite-seal ring and pressure ring between the valve body of valve pocket side and floating valve seat, prevented that effectively medium impurity in the valve pocket from entering in the spring place cavity between floating valve seat and the valve body, avoid bloated dead floating valve seat of impurity and the bloated dead phenomenon of worst hot case spheroid, have advantages such as valve seat floats freely, valve opening and closing flexibility and reliability.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the partial structurtes enlarged view of I place floating valve seat among the utility model Fig. 1.
Embodiment
Now further describe technical solutions of the utility model in conjunction with the accompanying drawings and embodiments.
Scraper type two-way high-temperature metal hard-sealed ball valve as shown in Figure 1, comprise valve body, valve seat, spheroid 4, valve rod 15 and Sealing and assembling set, to be left valve barrel 1 be connected by assembling set with right valve barrel 10 valve body, and this assembling set adopts stud bolt 12 and hexagon nut 11.Be respectively equipped with left valve seat 3 and right valve seat 6 in left valve barrel 1 and the right valve barrel 10, fixed installation between wherein left valve seat 3 and the left valve barrel 1, graphite-seal ring 2 is set between the two, float between right valve seat 6 and the right valve barrel 10 and install, be used for absorbing high temperature and expand, prevent that high temperature expansion back spheroid 4 from expanding dead between valve seat.Simultaneously, left and right sides valve seat is made scraper respectively and is contacted with spheroid 4, scrapes off the particulate matter of coking on spheroid 4 surfaces in the valve opening and closing process, avoids the wearing and tearing of the particulate matter on spheroid 4 surfaces to left and right sides sealing surface of seat.Be provided with spring 7 between floating valve seat and the valve body, utilize the high temperature expansion of elasticity absorption spheroid 4 with the valve seat of spring 7, it is dead to avoid spheroid 4 high temperature to expand.Valve pocket side between right valve barrel 10 and floating valve seat 6 is provided with seal arrangement, and the sealing device is made up of seal ring 18 and pressure ring 19, and pressure ring 19 is fixedly installed on the right valve barrel.Seal ring 18 adopts high temperature resistant graphite material, is installed by the screw thread secure fit between pressure ring 19 and the right valve barrel 10, also can the screw installation be set circumference between pressure ring 19 and right valve barrel 10.Be provided with self-tightening sealing device between floating valve seat 6 and the right valve barrel 10, this self-tightening sealing device is made up of graphite-seal ring 9 between right valve barrel 10 and the right valve seat 6 and pressure ring 8, pressure ring 8 is located between graphite-seal ring 9 and the butterfly spring sheet 7, when left increases or spheroid 4 when expanded by high temperature to pressure medium, right valve seat 6 floats to the right, promotes pressure ring 8 graphite-seal ring 9 and right valve barrel 10 are compressed sealing.Be provided with metallic gasket 5 between left valve barrel 1 and the right valve barrel 10, left valve barrel 1 cooperates installation with valve rod 15 bottoms by convex shoulder, prevents that valve pocket inner high voltage medium from getting valve rod 15 from left valve barrel 1, and both tops are by filler 13 and Gland 14 sealings.Be provided with connecting sleeve 17 and support 16 between valve rod 15 upper ends and the transmission device.The sealing surface of valve seat and spheroid 4 is built-up welding and spraying titanizing tungsten alloy respectively, improves wear-resisting, the corrosion resistant performance of valve.
Claims (3)
1, a kind of scraper type two-way high-temperature metal hard-sealed ball valve, comprise valve body, valve seat, spheroid (4), valve rod (15) and Sealing and assembling set, valve body is that left valve barrel (1) is connected by assembling set with right valve barrel (10), be respectively equipped with valve seat in left valve barrel (1) and the right valve barrel (10), one of them valve seat is a floating valve seat, both floated between valve seat and the valve body and installed, left and right sides valve seat is made scraper respectively and is contacted with spheroid (4), it is characterized in that between the valve body (10) of valve pocket side and floating valve seat (6), seal arrangement being set, the sealing device is made up of seal ring (18) and pressure ring (19), and pressure ring (19) is fixedly installed on the valve body (10).
2, scraper type two-way high-temperature metal hard-sealed ball valve according to claim 1 is characterized in that seal ring (18) adopts high temperature resistant graphite material.
3, scraper type two-way high-temperature metal hard-sealed ball valve according to claim 1 and 2, it is characterized in that being provided with self-tightening sealing device between floating valve seat (6) and the valve body (10), this self-tightening sealing device is made up of graphite-seal ring (9) between valve body (10) and the valve seat (6) and pressure ring (8), and pressure ring (8) is located between graphite-seal ring (9) and the butterfly spring sheet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520134037 CN2883819Y (en) | 2005-12-01 | 2005-12-01 | Scraper type two-way high temp metal hard sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520134037 CN2883819Y (en) | 2005-12-01 | 2005-12-01 | Scraper type two-way high temp metal hard sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2883819Y true CN2883819Y (en) | 2007-03-28 |
Family
ID=37956880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520134037 Expired - Lifetime CN2883819Y (en) | 2005-12-01 | 2005-12-01 | Scraper type two-way high temp metal hard sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2883819Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371635C (en) * | 2005-12-01 | 2008-02-27 | 浙江成达特种阀门厂 | Scraper type two-way high-temperature metal hard-sealed ball valve |
| CN101915321A (en) * | 2010-08-12 | 2010-12-15 | 太仓优尼泰克精密机械有限公司 | Ball valve |
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
-
2005
- 2005-12-01 CN CN 200520134037 patent/CN2883819Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371635C (en) * | 2005-12-01 | 2008-02-27 | 浙江成达特种阀门厂 | Scraper type two-way high-temperature metal hard-sealed ball valve |
| CN101915321A (en) * | 2010-08-12 | 2010-12-15 | 太仓优尼泰克精密机械有限公司 | Ball valve |
| CN105065701A (en) * | 2015-08-05 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Hard sealing lifting type brake plug valve and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080227 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |