CN201875181U - Lock hopper valve - Google Patents
Lock hopper valve Download PDFInfo
- Publication number
- CN201875181U CN201875181U CN2010206156523U CN201020615652U CN201875181U CN 201875181 U CN201875181 U CN 201875181U CN 2010206156523 U CN2010206156523 U CN 2010206156523U CN 201020615652 U CN201020615652 U CN 201020615652U CN 201875181 U CN201875181 U CN 201875181U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- right valve
- stuffing box
- club
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims description 26
- 210000004907 gland Anatomy 0.000 claims description 13
- 230000004323 axial length Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model relates to a lock hopper valve, which comprises a left valve body, a right valve body, a left valve seat, a right valve seat, an integral ball rod and a pneumatic device, wherein a through hole capable of communicating a left valve body passage with a right valve body passage is arranged on a valve ball of the integral ball rod. The lock hopper valve also comprises a cylindrical filling case and an annular press sleeve, the upper part of the left valve body and the upper part of the right valve body are provided with annular convex parts, a valve rod passes through the press sleeve and the through hole arranged in the middle of the filling case and is tightly matched with the press sleeve and the filling case, the filling case is inserted into a groove formed by the annular convex parts and is tightly matched and fixedly connected with the annular convex parts, the inner wall of the upper end of the filling case is provided with an annular groove, flexible graphite is placed in the annular groove, the press sleeve extends into the annular groove, is tightly matched with the annular groove, tightly presses the flexible graphite and is fixedly connected with the filling case, a sealing gasket is arranged between the filling case and the radial surface in contact with the annular convex parts, and a middle cavity gasket is arranged between the left valve body and the right valve body. The lock hopper valve adopts a two-body type structure, a series of sealing measures are combined, the sealing is reliable, and the service life is long.
Description
Technical field
The utility model relates to a kind of lock slag valve, particularly relates to the lock slag valve of a kind of compact structure, favorable sealing property.
Background technique
Lock slag valve also is referred to as the lock hopper valve, generally adopts pneumatic two-position switch ball valve, is most important valve on water coal slurry, polynary slurry and the dry coal powder airflow bed pressurizing gasifying apparatus of slag tap.Every gasification oven is provided with 3 stand lock slag valves, and on gasification oven shock chamber or dregs breaker bottom and the pipeline that lock hopper links to each other, promptly the lock hopper inlet side has 2, is commonly referred to the slag valve of locking.The lock hopper floss hole has 1, is commonly referred to down lock slag valve, and the end opening of this valve communicates with atmosphere.Lock slag valve is participated in the deslagging program control of gasification oven, is subjected to the direct abrasion of high temperature, high pressure lime-ash, and switch is frequent, requires to realize two way sealed under the High Pressure Difference situation.This external lock slag valve use position key, the technical requirements height involves great expense.Therefore need a kind of compact structure, lock slag valve that sealability is superior badly.
Summary of the invention
The technical problems to be solved in the utility model provides the lock slag valve of a kind of compact structure, favorable sealing property.
For solving the problems of the technologies described above, a kind of lock slag of the utility model valve comprises left and right valve body, lays respectively at the left and right valve seat of the ring-type among the left and right valve body, also comprises one club and Pneumatic actuator; The valve ball of one club is positioned among the left and right valve seat, and closely cooperates with left and right valve seat, and left and right valve body is fixedly connected, and the valve rod upper end of one club is connected with Pneumatic actuator; The valve ball of one club is provided with the open-work that left and right valve channel is communicated with.
Lock slag valve also comprises the gland of columniform stuffing box and ring-type; The top of left and right valve body is provided with annular convex, and the internal diameter of annular convex is consistent with the external diameter of stuffing box, and the axial length of stuffing box is greater than the axial length of annular convex; The valve rod of one club passes the open-work at gland and stuffing box center vertically, and closely cooperates with gland and stuffing box; Stuffing box is inserted into the groove that annular convex forms, and fixedlys connected with annular convex; The inwall of stuffing box upper end is placed with Expanded graphite along being circumferentially with an annular recess in the annular recess; Gland extend among the annular recess, closely cooperates with annular recess, compresses Expanded graphite, and fixedlys connected with stuffing box.
Between stuffing box and the radial surface that annular convex contacts gasket seal is installed.
The lumen pad is installed between the left and right valve body sealing surface.
Respectively be provided with the ring-type blade with the contacted annular seal band of the valve ball of one club both sides on the right valve seat, the ring-type blade closely contacts with ball surface; Respectively be provided with the ring-type blade with the contacted annular seal band of the valve ball of one club both sides on the valve seat of a left side, the ring-type blade closely contacts with ball surface.
In the passage of left and right valve body, the sealing strip from inlet to left and right valve seat and valve ball is separately installed with access sheath.
The material of access sheath is the stainless steel of CR13 model.
Respectively be with one on the valve rod at one club valve ball two ends and be positioned within the left and right valve body, and the bearing of fixedlying connected with left and right valve body.
The utility model adopts the valve body two style structure, combination Expanded graphite, gasket seal and lumen pad, and sealing is reliable, long service life.
The utility model adopts valve ball and valve rod integral structure, cooperates with the high strength bearing, guarantees the frequent opening and closing of valve.
The utility model adopts all-pass directly to design, and by left and right valve big disturbance takes place for avoiding fluid, produces disorderly; increase flow resistance; whole passages adopt the protection of CR13 access sheath from left and right valve body inlet to sealing surface, and passage is smoothly unimpeded, effectively prevent the passage corrosion.
The utility model adopts and is provided with the ring-type blade at valve seat, in the valve ball rotation process, the ring-type blade all carries out scraping to the ball surface adsorbate, thereby prevents from media particle is brought between the sealing strip of left and right valve seat and valve ball, destroy sealing strip, and the sealability of influence lock slag valve integral body.
Description of drawings
Fig. 1 is a kind of schematic representation of locking the slag valve provided by the utility model.
Among the figure: 1 is the lumen pad, and 2 is bearing, and 3 is right valve barrel, and 4 is right valve seat, and 5 is access sheath, and 6 is the one club, and 7 is gasket seal, and 8 is stuffing box, and 9 is Expanded graphite, and 10 is gland, and 11 is key, and 12 is Pneumatic actuator, and 13 is left valve barrel.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
The utility model comprises, comprises left and right valve body 13,3, lays respectively at the left and right valve seat 4 of the ring-type among the left and right valve body 13,3, also comprises one club 6 and Pneumatic actuator 12; Left and right valve seat 4 closely cooperates with left and right valve body 13,3 respectively.The valve ball of one club 6 is positioned among the left and right valve seat 4, and closely cooperates with left and right valve seat 4.Respectively be with one on the valve rod at one club 6 valve ball two ends and be positioned within the left and right valve body 13,3, and the bearing 2 of fixedlying connected with left and right valve body 13,3.
Left and right valve body 13,3 is bolted to connection.Between left and right valve body 13,3 sealing surfaces lumen pad 7 is installed.
The valve rod upper end of one club 6 is connected with Pneumatic actuator 12 by key 11; The valve ball of one club 6 is provided with the open-work that can make left and right valve body 13,3 channel connections.
Lock slag valve also comprises the gland 10 of columniform stuffing box 8 and ring-type; The top of left and right valve body 13,3 is provided with annular convex, and the internal diameter of annular convex is consistent with the external diameter of stuffing box 8, and the axial length of stuffing box 8 is greater than the axial length of annular convex; The valve rod of one club 6 passes the open-work at gland 10 and stuffing box 8 centers vertically, and closely cooperates with gland 10 and stuffing box 8; Stuffing box 8 is inserted into the groove that annular convex forms, and is bolted to connection with annular convex; The inwall of stuffing box 8 upper ends is placed with Expanded graphite 9 along being circumferentially with an annular recess in the annular recess; Described gland 10 extend among the annular recess, closely cooperates with annular recess, compresses Expanded graphite 9, and is bolted to connection with stuffing box 8.Between stuffing box 8 and the radial surface that annular convex contacts gasket seal 7 is installed.
Respectively be provided with the ring-type blade with the contacted annular seal band of the valve ball of one club 6 both sides on the right valve seat 4, the ring-type blade closely contacts with ball surface; Respectively be provided with the ring-type blade with the contacted annular seal band of the valve ball of one club both sides on the valve seat of a left side, the ring-type blade closely contacts with ball surface.
In the passage of left and right valve body 13,3, to the sealing strip of left and right valve seat 4, be welded with access sheath 5 respectively with valve ball from inlet.The material of access sheath 5 is the stainless steel of CR13 model.
The material of left and right valve body 13,3 preferably adopts the steel of ASTM A216 WCB model.
The material of valve ball and valve rod preferably adopts the steel of ASTM A182 F51 model, and on sealing surface sprayed wc.
Left and right valve seat 4 materials preferably adopt the steel of ASTM A182 F51 model, and on sealing surface the built-up welding cobalt base hard alloy.
Claims (8)
1. lock slag valve is characterized in that: comprise left and right valve body, lay respectively at the left and right valve seat of the ring-type among the left and right valve body, also comprise one club and Pneumatic actuator; The valve ball of one club is positioned among the left and right valve seat, and closely cooperates with left and right valve seat, and left and right valve body is fixedly connected, and the valve rod upper end of one club is connected with Pneumatic actuator; The valve ball of described one club is provided with the open-work that left and right valve channel is communicated with.
2. a kind of lock slag valve according to claim 1, it is characterized in that: described lock slag valve also comprises the gland of columniform stuffing box and ring-type; The top of described left and right valve body is provided with annular convex, and the internal diameter of described annular convex is consistent with the external diameter of described stuffing box, and the axial length of described stuffing box is greater than the axial length of described annular convex; The valve rod of described one club passes the open-work at described gland and described stuffing box center vertically, and closely cooperates with gland and stuffing box; Described stuffing box is inserted into the groove that described annular convex forms, and fixedlys connected with described annular convex; The inwall of described stuffing box upper end is placed with Expanded graphite along being circumferentially with an annular recess in the described annular recess; Described gland extend among the annular recess, closely cooperates with annular recess, compresses Expanded graphite, and fixedlys connected with stuffing box.
3. a kind of lock slag valve according to claim 2 is characterized in that: between described stuffing box and the radial surface that annular convex contacts gasket seal is installed.
4. a kind of lock slag valve according to claim 2 is characterized in that: between the described left and right valve body sealing surface lumen pad is installed.
5. a kind of lock slag valve according to claim 2 is characterized in that: respectively be provided with the ring-type blade with the contacted annular seal band of the valve ball of one club both sides on the described right valve seat, the ring-type blade closely contacts with ball surface; Respectively be provided with the ring-type blade with the contacted annular seal band of the valve ball of one club both sides on the described left valve seat, the ring-type blade closely contacts with ball surface.
6. a kind of lock slag valve according to claim 2 is characterized in that: in the passage of described left and right valve body, the sealing strip from inlet to left and right valve seat and valve ball is separately installed with access sheath.
7. a kind of lock slag valve according to claim 6, it is characterized in that: the material of described access sheath is the stainless steel of CR13 model.
8. a kind of lock slag valve according to claim 2 is characterized in that: respectively is with one on the valve rod at described one club valve ball two ends and is positioned within the left and right valve body, and the bearing of fixedlying connected with left and right valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206156523U CN201875181U (en) | 2010-11-19 | 2010-11-19 | Lock hopper valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206156523U CN201875181U (en) | 2010-11-19 | 2010-11-19 | Lock hopper valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875181U true CN201875181U (en) | 2011-06-22 |
Family
ID=44163098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206156523U Expired - Lifetime CN201875181U (en) | 2010-11-19 | 2010-11-19 | Lock hopper valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875181U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777627A (en) * | 2012-08-21 | 2012-11-14 | 上海开维喜阀门集团有限公司 | Flat head ball of self-cleaning friction-free ball valve |
| CN106523731A (en) * | 2016-12-16 | 2017-03-22 | 重庆川仪调节阀有限公司 | Lock hopper ball valve |
-
2010
- 2010-11-19 CN CN2010206156523U patent/CN201875181U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777627A (en) * | 2012-08-21 | 2012-11-14 | 上海开维喜阀门集团有限公司 | Flat head ball of self-cleaning friction-free ball valve |
| CN106523731A (en) * | 2016-12-16 | 2017-03-22 | 重庆川仪调节阀有限公司 | Lock hopper ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |