CN201496607U - Anti-accumulation ash discharging ball valve - Google Patents
Anti-accumulation ash discharging ball valve Download PDFInfo
- Publication number
- CN201496607U CN201496607U CN2009201978656U CN200920197865U CN201496607U CN 201496607 U CN201496607 U CN 201496607U CN 2009201978656 U CN2009201978656 U CN 2009201978656U CN 200920197865 U CN200920197865 U CN 200920197865U CN 201496607 U CN201496607 U CN 201496607U
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- Prior art keywords
- valve
- inlet hole
- valve body
- spheroid
- air inlet
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- Expired - Fee Related
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Abstract
The utility model relates to an anti-accumulation ash discharging ball valve, which comprises a transmission mechanism, a valve rod, a valve body, a valve seat and a ball body. A through runner is arranged inside the valve body; a spherical cavity is disposed in the middle of the runner; the ball body is arranged at the position of the cavity; a dynamic seal pair is formed by one side of the ball body and the valve seat; a through air inlet hole is arranged on the valve body corresponding to the position of the ball body; one end of the air inlet hole is communicated with the outside of the valve body; the other end of the air inlet hole is communicated with the cavity inside the valve body; and an included angle of 45 degrees is formed between the air inlet hole and the spherical surface of the ball body. By arranging the air inlet hole on the valve body, air can be blown from the air inlet hole to the spherical surface of the ball body, scales formed on the spherical surface can be blown down, and the ball valve can decrease and even avoid friction between the ball body and the inner wall of the valve body to enable the valve to be more reliable in work, thereby indirectly prolonging the service life of the valve.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of anti-Unloading ball valve that gathers.
Background technique
The ball valve of using in Iron And Steel Plant and cinder of electric power plant system owing to be subjected to the erosive wear of high temperature slurries and particulate matter, has seriously influenced its working life.
Common Unloading ball valve after repeatedly opening and closing ash discharge, the valve pocket inner accumulated particulate matters such as a large amount of coal ash powders, and form fouling at spherome surface.Since the valve pocket no particulate matter gather fouling with sphere, increased the friction of particulate matter and spheroid, cause spheroid to rotate ineffective and jam phenomenon, even cause the imprecision that cooperates of valve seal pair and spherome surface.
Spheroid rotates ineffective and the jam phenomenon can cause ball valve sealing surface in the switching process prolonged by the flushing time of high temperature slurries or particulate matter, influences the working life of ball valve.Sealing pair directly causes seal leakage with the imprecision that cooperates of spherome surface, causes spheroid and sealing pair to scrap, and causes system normally not move.
Summary of the invention
The purpose of this utility model is at not enough defective of the prior art, provides a kind of work the more reliable anti-Unloading ball valve that gathers.
For achieving the above object, the utility model adopts a kind of anti-Unloading ball valve that gathers, comprise driving mechanism, valve rod, valve body, valve seat, spheroid, offer the runner of perforation in the valve body, in the centre of runner is spherical cavity, spheroid is arranged on this cavity place, one side of spheroid and valve seat constitute the motive sealing pair, corresponding spheroid position offers the inlet hole of perforation on valve body, inlet hole one end and valve body external communications, cavity in the other end and the valve body is communicated with, and the sphere of inlet hole and spheroid is 45 and spends angles.
This practicality further is set to anti-gather Unloading ball valve and comprise Pneumatic actuator, and the air outlet of Pneumatic actuator links to each other with inlet hole on the valve body.
Through experiment, the bore dia of the inlet hole of the best of the present utility model is 6-8cm.
The utility model is by offering inlet hole on valve body, gas can be blown from the spherome surface of inlet hole facing to spheroid, to blow off in the fouling that spherome surface forms, reduce and even avoid friction between spheroid and the valve interior wall, make valve working more reliable, improved the working life of valve indirectly.
Description of drawings
Fig. 1 is the utility model example structure schematic representation.
Embodiment
As shown in Figure 1, this practical specific embodiment is a kind of anti-Unloading ball valve that gathers, comprise driving mechanism, valve rod, valve body 1, valve seat, spheroid 2, Pneumatic actuator, offer the runner of perforation in the valve body 1, in the centre of runner is spherical cavity 11, spheroid 2 is arranged on this cavity 11 places, one side of spheroid 2 and valve seat constitute the motive sealing pair, corresponding spheroid 2 positions offer the inlet hole 12 of perforation on valve body 1, inlet hole 12 1 ends and valve body 1 external communications, the cavity 11 in the other end and the valve body 1 is communicated with, and the bore dia of inlet hole 12 is 6-8cm, inlet hole 12 is 45 degree angles with the sphere of spheroid 2, and the air outlet of Pneumatic actuator links to each other with inlet hole 12 on the valve body 1.
Above-mentioned by on valve body 1, offering inlet hole 12, gas can be blown from the spherome surface of inlet hole 12 facing to spheroid 2, the foulings that will form on spheroid 2 surfaces be blown off, and reduce and even avoid friction between spheroid 2 and valve body 1 inwall.
Claims (3)
1. prevent gathering Unloading ball valve for one kind, comprise driving mechanism, valve rod, valve body, valve seat, spheroid, offer the runner of perforation in the valve body, in the centre of runner is spherical cavity, and spheroid is arranged on this cavity place, and a side of spheroid and valve seat constitute the motive sealing pair, it is characterized in that: corresponding spheroid position offers the inlet hole of perforation on valve body, cavity in inlet hole one end and the valve body external communications, the other end and valve body is communicated with, and the sphere of inlet hole and spheroid is 45 and spends angles.
2. according to claim 1ly anti-gather Unloading ball valve, it is characterized in that: describedly anti-ly gather Unloading ball valve and comprise Pneumatic actuator, the air outlet of Pneumatic actuator links to each other with inlet hole on the valve body.
3. according to claim 1 and 2ly anti-gather Unloading ball valve, it is characterized in that: the bore dia of described inlet hole is 6-8cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201978656U CN201496607U (en) | 2009-09-29 | 2009-09-29 | Anti-accumulation ash discharging ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201978656U CN201496607U (en) | 2009-09-29 | 2009-09-29 | Anti-accumulation ash discharging ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201496607U true CN201496607U (en) | 2010-06-02 |
Family
ID=42439814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201978656U Expired - Fee Related CN201496607U (en) | 2009-09-29 | 2009-09-29 | Anti-accumulation ash discharging ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201496607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678959A (en) * | 2012-05-10 | 2012-09-19 | 天津百利展发集团有限公司 | Ball valve device special for powder, ash and slag system |
-
2009
- 2009-09-29 CN CN2009201978656U patent/CN201496607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678959A (en) * | 2012-05-10 | 2012-09-19 | 天津百利展发集团有限公司 | Ball valve device special for powder, ash and slag system |
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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: 20100602 Termination date: 20120929 |