CN2687449Y - Unloading ball valve - Google Patents
Unloading ball valve Download PDFInfo
- Publication number
- CN2687449Y CN2687449Y CN 200420025667 CN200420025667U CN2687449Y CN 2687449 Y CN2687449 Y CN 2687449Y CN 200420025667 CN200420025667 CN 200420025667 CN 200420025667 U CN200420025667 U CN 200420025667U CN 2687449 Y CN2687449 Y CN 2687449Y
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- Prior art keywords
- valve
- core ball
- valve core
- ball body
- utility
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- Expired - Fee Related
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Abstract
The utility model discloses an ash discharging ball valve. The ash discharging ball valve comprises a valve body, a valve cover fixedly connected with the valve body, a valve core ball body with through holes installed in the valve body and a transmission shaft connected with the valve core ball body. The utility model is characterized in that both sides of the valve core ball body are respectively provided with valve bases which are matched to the sphere of the ball, and the valve base and the valve core ball body form a sealing slave, and an elastic sealing pad is provided between the valve base and the valve body or between the valve covers. Because the inner sphere of the valve base is made through abrasion, the contact area between the valve core ball body and the inner sphere of the valve base is large, and the sealing effect is good. The two ends of the through hole of the valve core ball body are both sealed. The conveyed medium can't abrade the external surface of the valve core ball body and the inner cavity of the valve body. In addition, the valve core ball body and the valve base can both be made of metallic materials with hard superficial hardness and high temperature resistant capability. Therefore, the utility model has the advantages of reliable seal, high temperature resistant capability and long service life. The utility model can be used in the air conveying coal ash pipe system of the manufacturing enterprises, such as the generating electricity manufacturing enterprise and the steel manufacturing enterprise.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of Unloading ball valve.
Background technique
In manufacturing enterprises such as generating, iron and steel, the cinder that will produce in process of production with the gas delivery mode discharges in time usually.In the delivery line that contains ash, slag or other particulate matter gas, generally all to use Unloading ball valve to come the motion of control media.The Unloading ball valve that uses mostly is the single face sealing configuration greatly at present, and by the composite structure and the spool spheroid formation sealing pair of seal ring, valve seat and spring, the seal ring liner is between spool spheroid and valve seat.Because seal ring adopts polytetrafluoroethylplastic plastic to make, when high temperature media such as conveying coal ash, lost efficacy easily, and the single face sealing configuration, the outer surface of spool spheroid and body cavity directly contact with cinder, coal ash is quick-wearing spool spheroid, valve seat and valve body very, ball valve is produced leak.Therefore this Unloading ball valve resistance to high temperature is poor, and working life is short.
Summary of the invention
The purpose of this utility model is the defective that exists at prior art, proposes by architecture advances that a kind of resistance to high temperature is good, sealing is reliable, the Unloading ball valve of long service life.
To achieve these goals, the Unloading ball valve that the utility model proposes, the valve gap that comprises valve body, is connected with valve body, be installed in the spool spheroid in the valve body, the transmission shaft that is connected with the spool spheroid, it is characterized in that: two at described spool spheroid also are respectively equipped with and the suitable valve seat of its sphere, and described valve seat and spool spheroid constitute sealing pair; Be provided with elastic sealing gasket between described valve seat and valve body or the valve gap.
As further architecture advances of the present utility model, above-mentioned Unloading ball valve comprises that is adjusted a nut, and described adjustment nut is threaded with valve gap, and described elastic seal ring is arranged on to be adjusted between nut and the valve seat.
From above-mentioned the utility model structure as can be known, the spool spheroid directly constitutes sealing pair with valve seat, owing to making through grinding with the suitable valve seat inner ball surface of sphere, so the area of contact of valve seat and spool spheroid is big, and good sealing effect; Elastic washer can guarantee that valve seat and spool spheroid keep in touch, and can adjust spool spheroid and the contacted tightness of valve seat by adjusting nut.In addition, spool spheroid and valve seat all can be made of metallic material high temperature resistant and that surface hardness is big, and the through hole two ends of spool spheroid are all sealed, and the medium of being carried can not touch the outer surface of spool spheroid and the inner chamber of valve body.Therefore compare with the Unloading ball valve of prior art, the utlity model has and seal advantage reliable, high temperature resistant, long service life.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is an embodiment's of the utility model a structural representation.
Embodiment
A nonrestrictive embodiment who provides the utility model to relate in the accompanying drawing 1, the utility model will be further described below in conjunction with embodiment.
As can be seen from Figure 1 the Unloading ball valve of present embodiment mainly is made up of valve body 1, valve gap 8, spool spheroid 4, valve seat 2, elastic sealing gasket 3, adjustment nut 9, drive stand 11, transmission shaft 13 and muff 12 etc.Valve body 1 is fixed together by sealing gasket 10, stud bolt 5, packing ring 6 and nut 7 with valve gap 8, inside at valve body 1 and valve gap 8 is equipped with spool spheroid 4, two at spool spheroid 4 are separately installed with the valve seat 2 suitable with its sphere, valve seat 2 constitutes sealing pair with spool spheroid 4, the valve seat 2 that is installed in valve body 1 one sides is pressed on the valve seat 2 by elastic sealing gasket 3, the valve seat 2 that is installed in valve gap 8 one sides then is pressed on the end face of adjusting nut 9 by elastic sealing gasket 3, adjusts nut 9 and is threaded with valve gap 8; Transmission shaft 13 suits muff 12 and drive stand 11, and drive stand 11 is connected with valve body 1, muff 12 is connected with drive stand 11, and the square termination of transmission shaft 13 is inserted in the adaptive with it hole of spool spheroid 4.
The Unloading ball valve of present embodiment, spool spheroid 4 adopt stainless steel materials to make, and intensity is good, corrosion-resistant, valve seat 2 usefulness 40Cr material and through abrasive machining and nitriding treatment, the surface hardness height, and spool spherome surface area of contact big.The elastic seal ring 3 that adopts the rubber-like graphite material to make is pressed on the valve seat 2, and valve seat 2 and spool spheroid 4 are kept in touch.Can adjust spool spheroid 4 and valve seat 2 contacted tightness by adjusting nut 9, thereby guarantee that sealing is reliable.
Because the medium of being carried can not touch the outer surface of spool spheroid and the inner chamber of valve, so valve body can not be worn, use through permanent, after the seal failure of spool spheroid and valve seat, can repair by changing elastic sealing gasket, spool spheroid and valve seat, so Unloading ball valve of the present utility model is durable in use, user cost is low.
Claims (3)
1. Unloading ball valve, the valve gap that comprises valve body, is connected with valve body, be installed in the spool spheroid in the valve body, the transmission shaft that is connected with the spool spheroid, it is characterized in that: two at described spool spheroid are respectively equipped with the valve seat suitable with its sphere, and described valve seat and spool spheroid constitute sealing pair; Be provided with elastic sealing gasket between described valve seat and valve body or the valve gap.
2. Unloading ball valve according to claim 1 is characterized in that: comprise that is also adjusted a nut, described adjustment nut is threaded with valve gap, and described elastic seal ring is arranged on to be adjusted between nut and the valve seat.
3. Unloading ball valve according to claim 1 and 2 is characterized in that: described elastic sealing gasket is the graphite material packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025667 CN2687449Y (en) | 2004-03-24 | 2004-03-24 | Unloading ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025667 CN2687449Y (en) | 2004-03-24 | 2004-03-24 | Unloading ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687449Y true CN2687449Y (en) | 2005-03-23 |
Family
ID=34669967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420025667 Expired - Fee Related CN2687449Y (en) | 2004-03-24 | 2004-03-24 | Unloading ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687449Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454807A (en) * | 2010-10-21 | 2012-05-16 | 江苏省鑫通阀门制造有限公司 | Metal hollow O-shaped ring type ash discharging ball valve |
| CN102454806A (en) * | 2010-10-21 | 2012-05-16 | 江苏省鑫通阀门制造有限公司 | Ash discharging ball valve |
| CN103453171A (en) * | 2012-06-01 | 2013-12-18 | 洪泽东俊机械有限公司 | Oil production rotating column metal sealing valve |
-
2004
- 2004-03-24 CN CN 200420025667 patent/CN2687449Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454807A (en) * | 2010-10-21 | 2012-05-16 | 江苏省鑫通阀门制造有限公司 | Metal hollow O-shaped ring type ash discharging ball valve |
| CN102454806A (en) * | 2010-10-21 | 2012-05-16 | 江苏省鑫通阀门制造有限公司 | Ash discharging ball valve |
| CN103453171A (en) * | 2012-06-01 | 2013-12-18 | 洪泽东俊机械有限公司 | Oil production rotating column metal sealing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050323 Termination date: 20130324 |