CN204942573U - A kind of mud valve - Google Patents
A kind of mud valve Download PDFInfo
- Publication number
- CN204942573U CN204942573U CN201520376859.2U CN201520376859U CN204942573U CN 204942573 U CN204942573 U CN 204942573U CN 201520376859 U CN201520376859 U CN 201520376859U CN 204942573 U CN204942573 U CN 204942573U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- gap
- stud
- sealing
- 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 - Fee Related
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Abstract
The utility model discloses a kind of mud valve, flashboard is dull and stereotyped, freely fit between flashboard and metal seat valve plane, valve gap and valve body adopt Stud connection, valve gap top is provided with O type ring recess and interior sealing chamfering, and valve gap to be screwed by stud through O type ring recess through valve rod and valve body and is squeezed into one, valve seat loading body cavity, flashboard is arranged in valve support chamber and fluid orthogonal, and flashboard and valve base surface heap are welded with cemented carbide structure.The utility model by freely fit between metal flashboard and metal seat valve plane, realizes sealing by seal gease under the effect of medium; Valve gap and valve body adopt Stud connection, and Sealing is pressure enhanced pad and O-ring seals, reduce aggressive medium to the erosion of stud and screw and decrease stud load; Valve stem seal adopts double-deck BA type rubber lip to mould composite filling sealing, ensure that sealability, and open and close flexibly, switch moment reduces.
Description
Technical field
The utility model belongs to valve field, particularly relates to a kind of mud valve.
Background technique
The gate valve that domestic current oil field and mine use; due in underground medium containing silt and Hard Inclusion and sulphur-containing substance; in the motion of fluid, spool and valve seat washed away and corrode; cause flashboard and the prooving of valve seat and corrosion very fast, during closedown, have leakage phenomenon, often need to change; not only cost of production expense increases; affect manufacturing efficiency, the more important thing is that the mine midway shutdown maintenance of working continuously changes loss quite large, and there is unsafe factor.
Model utility content
The purpose of this utility model is to provide a kind of mud valve, is intended to solve the problem that the corrosion of existing mud valve is very fast, user cost is high.
The utility model is achieved in that a kind of mud valve comprises valve body, valve seat, flashboard, valve rod, valve gap, handwheel;
Described flashboard is dull and stereotyped, freely fit between this flashboard and metal seat valve plane, described valve gap and valve body adopt Stud connection, described valve gap top is provided with O type ring recess and interior sealing chamfering, be provided with O type Sealing in O type ring recess, valve gap to be screwed by stud through O type ring recess through valve rod and valve body and is squeezed into one, described valve seat loading body cavity, described flashboard is arranged in valve support chamber and fluid orthogonal, and described flashboard and valve base surface heap are welded with cemented carbide structure.
Further, be provided with double-deck BA type rubber lip between described valve rod and valve gap and mould composite filling Sealing.
Further, described valve gap is provided with oil nozzle.
Mud valve of the present utility model is flap type, by freely fitting between metal flashboard and metal seat valve plane, to realize sealing by seal gease and under the effect of medium; Valve gap and valve body adopt Stud connection, and Sealing is pressure enhanced pad and O-ring seals, makes the fit up gap of valve gap and valve body very little, reduce aggressive medium to the erosion of stud and screw and decrease stud load; Gate valve is rising stem (RS.) structure, and switch has obvious mark on handwheel; Valve stem seal adopts double-deck " BA " type rubber lip to mould composite filling sealing, not only ensure that sealability, and valve is is at any time opened and closed flexibly, make switch moment be reduced to bottom line; Flashboard and valve base surface pile-up welding hard alloy, make it to have good wear resistance and corrosion resistance, and the special stainless steel material that stem material adopts corrosion resistance superior manufactures, and other part adopts the way of restriction hardness, and thus this valve can contain H
2use in S environment; Valve gap is provided with the oil nozzle of special lubricating bearings, is convenient to on-the-spot grease-added.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mud valve that the utility model embodiment provides;
In figure: 1, valve body; 2, valve seat; 3, flashboard; 4, valve rod; 5, valve gap; 6, handwheel.
Embodiment
For model utility content of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows.
As shown in Figure 1, the utility model is achieved in that a kind of mud valve comprises valve body 1, valve seat 2, flashboard 3, valve rod 4, valve gap 5, handwheel 6;
Described flashboard 3 is dull and stereotyped, freely fit between this flashboard 3 and metal seat valve 2 plane, described valve gap 5 and valve body 1 adopt Stud connection, described valve gap 5 top is provided with O type ring recess and interior sealing chamfering, O type Sealing is installed in O type ring recess, valve gap 5 to be screwed by stud through O type ring recess through valve rod 4 and valve body 1 and is squeezed into one, described valve seat 2 loads valve body 1 inner chamber, described flashboard 3 is arranged in valve seat 2 chamber and fluid orthogonal, and described flashboard 3 and valve seat 2 surface overlaying have cemented carbide structure.
Further, be provided with double-deck BA type rubber lip between described valve rod 4 and valve gap 5 and mould composite filling Sealing.
Further, described valve gap 5 is provided with oil nozzle.
Mud valve of the present utility model is flap type, by freely fitting between metal flashboard and metal seat valve plane, to realize sealing by seal gease and under the effect of medium.
Valve gap and valve body adopt Stud connection, and Sealing is pressure enhanced pad and O-ring seals, makes the fit up gap of valve gap and valve body very little, reduce aggressive medium to the erosion of stud and screw and decrease stud load.
Gate valve is rising stem (RS.) structure, and switch has obvious mark on handwheel.
Valve stem seal adopts double-deck " BA " type rubber lip to mould composite filling sealing, not only ensure that sealability, and valve is is at any time opened and closed flexibly, make switch moment be reduced to bottom line.
Flashboard and valve base surface pile-up welding hard alloy, make it to have good wear resistance and corrosion resistance, and the special stainless steel material that stem material adopts corrosion resistance superior manufactures, and other part adopts the way of restriction hardness, and thus this valve can contain H
2use in S environment.
Valve gap is provided with the oil nozzle of special lubricating bearings, is convenient to on-the-spot grease-added.
The above is only to preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (1)
1. a mud valve, is characterized in that, described mud valve comprises valve body, valve seat, flashboard, valve rod, valve gap, handwheel;
Described flashboard is dull and stereotyped, freely fit between this flashboard and metal seat valve plane, described valve gap and valve body adopt Stud connection, described valve gap top is provided with O type ring recess and interior sealing chamfering, be provided with O type Sealing in O type ring recess, valve gap to be screwed by stud through O type ring recess through valve rod and valve body and is squeezed into one, described valve seat loading body cavity, described flashboard is arranged in valve support chamber and fluid orthogonal, and described flashboard and valve base surface heap are welded with cemented carbide structure;
Be provided with double-deck BA type rubber lip between described valve rod and valve gap and mould composite filling Sealing;
Described valve gap is provided with oil nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376859.2U CN204942573U (en) | 2015-06-03 | 2015-06-03 | A kind of mud valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520376859.2U CN204942573U (en) | 2015-06-03 | 2015-06-03 | A kind of mud valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942573U true CN204942573U (en) | 2016-01-06 |
Family
ID=55010005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520376859.2U Expired - Fee Related CN204942573U (en) | 2015-06-03 | 2015-06-03 | A kind of mud valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942573U (en) |
-
2015
- 2015-06-03 CN CN201520376859.2U patent/CN204942573U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20170603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |