CN103075529A - Improved gate valve for slurry shield slurry conveyance - Google Patents
Improved gate valve for slurry shield slurry conveyance Download PDFInfo
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- CN103075529A CN103075529A CN201310018064XA CN201310018064A CN103075529A CN 103075529 A CN103075529 A CN 103075529A CN 201310018064X A CN201310018064X A CN 201310018064XA CN 201310018064 A CN201310018064 A CN 201310018064A CN 103075529 A CN103075529 A CN 103075529A
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Abstract
The invention provides an improved gate valve for slurry shield slurry conveyance. The two ends of a through diameter valve body (10) are provided with flanges with the same diameters and are provided with inner holes D, a conduction gate plate (11) is inserted and connected into a middle gap H of the through diameter valve body (10), the upper end of the conduction gate plate is connected with a valve rod (1), the valve rod is connected with a worm wheel worm rod (3), the worm wheel worm rod (3) is connected with a hand wheel (2), the worm wheel worm rod is connected with the through diameter valve body through a valve cover (7), sealing rings (12) are respectively assembled on the left and right end surfaces of the middle gap of the through diameter valve body, a guide cover (13) is fixedly assembled at the lower end of the middle gap of the through diameter valve body, the lower end of the guide cover is assembled and provided with an end cover (15), a ball valve (14) is assembled on the end cover, through the sealing rings, slurry cannot be remained in the guide cover, the resistance cannot be generated when the conduction gate plate is upwards lifted, and the abrasion quantity of the conduction gate plate cannot be increased through closing the through diameter valve body, so the improved gate valve does not generate the slurry leakage phenomenon, and convenience is provided for the tunnel optimization construction.
Description
Technical field
The invention belongs to shield structure technical field, refer more particularly to a kind of improvement type gate valve for the slurry shield slurry conveying.
Background technique
The slurry shield of tunneling usually needs to discharge a large amount of dregs, dregs is discharged from outside the tunnel by the mud mixing of carrying, and the gate valve main device carried of shield slurry just according to tunnelling footage, connects many delivery pipes by a plurality of gate valves and comes common slurry conveyed.
The gate valve that is exclusively used in the slurry shield slurry conveying is different from the common gate valve of normal operation, and what common gate valve was controlled is the fluid that does not contain larger impurity, and the gate valve that slurry shield slurry is carried control is the viscous fluid that contains a large amount of sandy gravels.
In conjunction with Fig. 1, the gate valve that is exclusively used in the slurry shield slurry conveying contains valve rod 1, handwheel 2, turbine and worm 3, positioning block 4, flashboard 6, valve gap 7, reducing valve body 8 and alloy sealing gasket 9.The two ends of reducing valve body 8 are flanges of equal diameters, because the endoporus aperture at two ends, reducing valve body 8 reducing place is not identical, therefore dispose positioning block 4 in the bottom of its larger endoporus and dispose alloy sealing gasket 9 in the bottom of its less endoporus, be close to the less interior nose end of reducing valve body 8 by the flashboard 6 of valve rod 1 lifting, 4 pairs of flashboards 6 of positioning block play positioning action, 9 pairs of flashboards 6 of alloy sealing gasket play seal action, the endoporus of reducing valve body 8 scribbles wearing layer, valve rod 1 connects with turbine and worm 3, turbine and worm 3 connects with handwheel 2 again, and it is an integral body that turbine and worm 3 connects with reducing valve body 8 by valve gap 7.
In use there are the following problems to be exclusively used in the gate valve that slurry shield slurry carries:
1, the normal residual mud that has in the bottom of reducing valve body 8, when flashboard 6 cut out reducing valve body 8 downwards, reducing valve body 8 can not be closed by fine, caused the lower end serious wear of flashboard 6, was the main cause that reducing valve body 8 produces the spillage phenomenons;
2, frequently promote flashboard 6 or be subjected to the impact of sandy gravel, cause the wear extent of positioning block 4 and alloy sealing gasket 9 to increase, flashboard 6 can not effective closed reducing valve body 8 and produce the spillage phenomenon;
3, produce the spillage phenomenons and described delivery pipe produces when revealing when reducing valve body 8, very difficult if the repair welding operation is implemented in described delivery pipe leakage place, because with certain pressure, well imagine by the difficulty of going to implement the repair welding operation in mud injection situation in described delivery pipe for mud.
4, when reducing valve body 8 produced spillage phenomenon or described delivery pipe generation leakage, a large amount of mud of revealing can be full of in the tunnel, affect the normal construction in tunnel.
Summary of the invention
For addressing the above problem, the invention provides a kind of improvement type gate valve for the slurry shield slurry conveying, this improvement type gate valve is the latus rectum valve body with the Diameter changeable valve structural reform, change flashboard into the conducting flashboard, make it more meet the conveying of shield slurry, solved the spillage phenomenon, provided convenience for optimizing tunnel construction.
For achieving the above object, the present invention adopts following technological scheme:
A kind of improvement type gate valve for the slurry shield slurry conveying, this improvement type gate valve comprises valve rod, handwheel, turbine and worm, valve gap, latus rectum valve body, conducting flashboard, the two ends of latus rectum valve body are the flanges of equal diameters and have endoporus D, in the H of the gap, middle part of latus rectum valve body, be plugged with the conducting flashboard, the upper end of conducting flashboard connects valve rod, and valve rod connects with turbine and worm, and turbine and worm connects with handwheel again, turbine and worm connects with the latus rectum valve body by valve gap, and feature of the present invention is:
The length of conducting flashboard is greater than described 2D, the width of conducting flashboard is greater than described D, the thickness of conducting flashboard equals described H, the top of conducting flashboard is provided with endoporus for flat board its underpart, the aperture of described endoporus and described D coupling are fitted with respectively seal ring on the end face of the left and right sides, gap, middle part of latus rectum valve body, the both ends of the surface of two seal ring contact conducting flashboards, equippedly in the lower end, gap, middle part of latus rectum valve body be fixed with guide housing, guide housing wraps the bottom of conducting flashboard.
The lower end of above-mentioned guide housing is fitted with end cap, is fitted with ball valve on the end cap.
The endoporus of the two sides of above-mentioned latus rectum valve body and conducting flashboard is all smeared Tungsten carbite.
Owing to adopting as mentioned above technological scheme, the present invention produces following good effect:
1, improvement type gate valve of the present invention is with reference to some structure of former gate valve, be the latus rectum valve body with the Diameter changeable valve structural reform, change flashboard into the conducting flashboard, make improvement type gate valve of the present invention more meet the conveying of shield slurry in conjunction with other local improvement, solved the spillage phenomenon, provided convenience for optimizing tunnel construction.
2, be in open position and guide housing when containing a small amount of mud when the conducting flashboard, can discharge moisture by ball valve, can discharge than thickened drilling fluid by end cap, in order to avoid affect the up and down lifting of conducting flashboard.
3, seal ring is to latus rectum valve body and the sealing of conducting flashboard common implementing, in order to avoid the mud of conducting flashboard adhesive tape enters in valve gap 7 or the guide housing.
4, the endoporus of the two sides of latus rectum valve body and conducting flashboard is smeared Tungsten carbite, makes it have wear resistance or corrosion resistance.
Description of drawings
Fig. 1 is the structural representation sketch of former gate valve.
Fig. 2 is structural representation sketch of the present invention.
Fig. 3 is the cross section simplified schematic diagram of conducting flashboard.
Among the above-mentioned figure: the 1-valve rod; The 2-handwheel; The 3-turbine and worm; The 4-positioning block; The 5-wearing layer; The 6-flashboard; The 7-valve gap; 8-reducing valve body; 9-alloy sealing gasket; 10-latus rectum valve body; 11-conducting flashboard; The 12-seal ring; The 13-guide housing; The 14-ball valve; The 15-end cap.
Embodiment
In conjunction with Fig. 1-2, the present invention is a kind of improvement type gate valve for the slurry shield slurry conveying, the improvement type gate valve is with reference to some structure of former gate valve, change reducing valve body 8 into latus rectum valve body 10, change flashboard 6 into conducting flashboard 11, make improvement type gate valve of the present invention more meet the conveying of shield slurry in conjunction with other local improvement, solved the spillage phenomenon, provide convenience for optimizing tunnel construction.
Can explain in more detail the present invention by the following examples, the present invention is not limited to the following examples, discloses purpose of the present invention and is intended to protect all changes and improvements in the scope of the invention.
In conjunction with Fig. 2, described improvement type gate valve comprises valve rod 1, handwheel 2, turbine and worm 3, valve gap 7, latus rectum valve body 10, conducting flashboard 11, the two ends of latus rectum valve body 10 are flanges of equal diameters and have endoporus D, in the H of the gap, middle part of latus rectum valve body 10, be plugged with conducting flashboard 11, the upper end of conducting flashboard 11 connects valve rod 1, valve rod 1 connects with turbine and worm 3, and turbine and worm 3 connects with handwheel 2 again, and turbine and worm 3 connects with latus rectum valve body 10 by valve gap 7.
In conjunction with Fig. 2-3, the length of conducting flashboard 11 of the present invention is greater than described 2D, the width of conducting flashboard 11 is greater than described D, the thickness of conducting flashboard 11 equals described H, the top of conducting flashboard 11 is provided with endoporus for flat board its underpart, the aperture of described endoporus and described D coupling, and the endoporus D of the airtight latus rectum valve body 10 of described flat board is in airtight position, the endoporus D that described endoporus is opened latus rectum valve body 10 is in open position, and described airtight position and described open position all realize by decline or the lifting of valve rod 1.
In conjunction with Fig. 2, on the end face of the left and right sides, gap, middle part of latus rectum valve body 10, be fitted with respectively seal ring 12, the both ends of the surface of two seal ring 12 contact conducting flashboards, the equipped guide housing 13 that is fixed with in the lower end, gap, middle part of latus rectum valve body 10, guide housing 13 wraps the bottom of conducting flashboard 11, the lower end of guide housing 13 is fitted with end cap 15, be fitted with ball valve 14 on the end cap 15, when conducting flashboard 11 is in open position and guide housing 13 when containing a small amount of mud, can discharge moisture by ball valve 14, can discharge than thickened drilling fluid by end cap 15, in order to avoid affect the up and down lifting of conducting flashboard 11.
12 pairs of latus rectum valve bodies 10 of seal ring and the sealing of conducting flashboard 11 common implementings are in order to avoid the mud of conducting flashboard 11 adhesive tapes enters in valve gap 7 or the guide housing 13.
In order to make latus rectum valve body 10 and conducting flashboard 11 have more wear resistance or corrosion resistance, can smear respectively wearing layer or anti-corrosion layer to the two sides of latus rectum valve body 10 and the endoporus of conducting flashboard 11, it is better that the Tungsten carbite effect is smeared in suggestion.
As latus rectum valve body 10 and conducting flashboard 11 and other local improvement, it is apparent making improvement type gate valve of the present invention institute produce an effect:
1, the sealing by seal ring 12 makes in the guide housing 13 not residual slip, when upwards promoting, conducting flashboard 11 can not produce resistance, and the bottom owing to conducting flashboard 11 also is in the guide housing 13 when closing latus rectum valve body 10, therefore the wear extent of conducting flashboard 11 is little, so the improvement type gate valve can not produce the spillage phenomenon, this point is different from former gate valve very much;
2, be not subject to the impact of mud owing to the endoporus of latus rectum valve body 10 has step to reducing valve body 8 reducing places, so the endoporus wear extent of latus rectum valve body 10 reduced, prolonged the working life of latus rectum valve body 10;
3, because latus rectum valve body 10 and conducting flashboard 11 are smeared Tungsten carbite, though the wearing and tearing that are subjected to the impact of sandy gravel also can not strengthen latus rectum valve body 10 and conducting flashboard 11;
4, the combination of latus rectum valve body 10 and conducting flashboard 11 and make the improvement type gate valve can not produce the spillage phenomenon provides very big facility for optimizing tunnel construction;
5, because the improvement type gate valve does not produce the spillage phenomenon, so when described delivery pipe produces leakage, can come by the improvement type gate valve of closing described delivery pipe two ends the repair welding operation is implemented in described delivery pipe leakage place.
The embodiment who selects in this article in order to disclose purpose of the present invention currently thinks to suit, but will be appreciated that: the present invention is intended to comprise that all belong to the interior embodiment's of this design and the scope of the invention all changes and improvement.
Claims (3)
1. one kind is used for the improvement type gate valve that slurry shield slurry is carried, this improvement type gate valve comprises valve rod (1), handwheel (2), turbine and worm (3), valve gap (7), latus rectum valve body (10), conducting flashboard (11), the two ends of latus rectum valve body (10) are the flanges of equal diameters and have endoporus D, in the H of the gap, middle part of latus rectum valve body (10), be plugged with conducting flashboard (11), the upper end of conducting flashboard (11) connects valve rod (1), valve rod (1) connects with turbine and worm (3), turbine and worm (3) connects with handwheel (2) again, turbine and worm (3) connects with latus rectum valve body (10) by valve gap (7), it is characterized in that:
The length of conducting flashboard (11) is greater than described 2D, the width of conducting flashboard (11) is greater than described D, the thickness of conducting flashboard (11) equals described H, the top of conducting flashboard (11) is provided with endoporus for flat board its underpart, the aperture of described endoporus and described D coupling, on the end face of the left and right sides, gap, middle part of latus rectum valve body (10), be fitted with respectively seal ring (12), the both ends of the surface of two seal rings (12) contact conducting flashboards (11), equippedly in the lower end, gap, middle part of latus rectum valve body (10) be fixed with guide housing (13), guide housing (13) wraps the bottom of conducting flashboard (11).
2. described a kind of improvement type gate valve of carrying for slurry shield slurry according to claim 1, it is characterized in that: the lower end of guide housing (13) is fitted with end cap (15), is fitted with ball valve (14) on the end cap (15).
3. described a kind of improvement type gate valve of carrying for slurry shield slurry according to claim 1, it is characterized in that: the endoporus of the two sides of latus rectum valve body (10) and conducting flashboard (11) is all smeared Tungsten carbite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310018064XA CN103075529A (en) | 2013-01-18 | 2013-01-18 | Improved gate valve for slurry shield slurry conveyance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310018064XA CN103075529A (en) | 2013-01-18 | 2013-01-18 | Improved gate valve for slurry shield slurry conveyance |
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| Publication Number | Publication Date |
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| CN103075529A true CN103075529A (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310018064XA Pending CN103075529A (en) | 2013-01-18 | 2013-01-18 | Improved gate valve for slurry shield slurry conveyance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676034A (en) * | 2013-11-28 | 2015-06-03 | 玛珂系统分析和开发有限公司 | Valve For Metering Media In The Micro-quantity Range |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203480U (en) * | 1987-07-22 | 1988-02-17 | 曲淑田 | Flat gate valve for slag mud |
| CN2035827U (en) * | 1988-07-29 | 1989-04-12 | 冯桂云 | Three-leaf granular-slurry valve |
| CN2123661U (en) * | 1992-01-29 | 1992-12-02 | 沈阳市浆体管道设备制造厂 | Granular slurry sluice valve |
| CN2257340Y (en) * | 1996-03-05 | 1997-07-02 | 杨树蔚 | Mortar and pulp granular valve |
| US20030062502A1 (en) * | 2001-10-03 | 2003-04-03 | Itt Manufacturing Enterprises, Inc. | Ported slide gate valve with gate motion to break scale build up |
| JP2004156629A (en) * | 2002-09-09 | 2004-06-03 | Tosho Seisakusho:Kk | Gate valve |
| CN202580082U (en) * | 2012-05-08 | 2012-12-05 | 黄德松 | Wear-free gate valve |
-
2013
- 2013-01-18 CN CN201310018064XA patent/CN103075529A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203480U (en) * | 1987-07-22 | 1988-02-17 | 曲淑田 | Flat gate valve for slag mud |
| CN2035827U (en) * | 1988-07-29 | 1989-04-12 | 冯桂云 | Three-leaf granular-slurry valve |
| CN2123661U (en) * | 1992-01-29 | 1992-12-02 | 沈阳市浆体管道设备制造厂 | Granular slurry sluice valve |
| CN2257340Y (en) * | 1996-03-05 | 1997-07-02 | 杨树蔚 | Mortar and pulp granular valve |
| US20030062502A1 (en) * | 2001-10-03 | 2003-04-03 | Itt Manufacturing Enterprises, Inc. | Ported slide gate valve with gate motion to break scale build up |
| JP2004156629A (en) * | 2002-09-09 | 2004-06-03 | Tosho Seisakusho:Kk | Gate valve |
| CN202580082U (en) * | 2012-05-08 | 2012-12-05 | 黄德松 | Wear-free gate valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676034A (en) * | 2013-11-28 | 2015-06-03 | 玛珂系统分析和开发有限公司 | Valve For Metering Media In The Micro-quantity Range |
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Application publication date: 20130501 |