CN201401515Y - Coal gas hydrodynamic angle-type cut-off valve - Google Patents
Coal gas hydrodynamic angle-type cut-off valve Download PDFInfo
- Publication number
- CN201401515Y CN201401515Y CN2009200997185U CN200920099718U CN201401515Y CN 201401515 Y CN201401515 Y CN 201401515Y CN 2009200997185 U CN2009200997185 U CN 2009200997185U CN 200920099718 U CN200920099718 U CN 200920099718U CN 201401515 Y CN201401515 Y CN 201401515Y
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- Prior art keywords
- valve
- flap
- valve seat
- nut
- coal gas
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- 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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- Details Of Valves (AREA)
Abstract
The utility model provides a coal gas hydrodynamic angle-type cut-off valve. A valve flap and a valve stem of the coal gas hydrodynamic angle-type cut-off valve are integrated as a whole; a valve flapnut is a blind-hole internal thread and provided with a guide nut; and a valve flap gasket and a valve base gasket are arranged in the grooves of the valve flap and a valve base respectively. With the structural design, the coal gas hydrodynamic angle-type cut-off valve effectively prevents the corrosion caused by the contact of parts and a medium and simultaneously reduces the impact effect of the medium on the parts, thereby prolonging the service life of the valve. The coal gas hydrodynamic angle-type cut-off valve has the advantages of firm connection of the internal structure and good resistance to erosion and corrosion.
Description
(1) technical field
The utility model relates to a kind of valve, is specifically related to a kind of Angle Stop valves that surges.
(2) background technique
Stop valve belongs to forced seal formula valve, so when valve closing, must exert pressure to flap by valve rod, does not leak with forced seal face.Existing Angle Stop valves, in use because the pressure that bears is bigger, the imperfection of its structure causes the valve components fracture, causes leakage, and working life is short.As the patent No. is 99202864.7 the Angle Stop valves that surges, and its valve rod is to form the fixing and locking pattern by straight pin in the mode that is threaded with flap, and the straight pin fracture in use often takes place, and flap and valve rod break away from and the valve of not opening mutually; The flap nut that is used for fixing the flap seal ring is a flat-bottom structure, is subjected to fluid impact power big, is easy to breakage; Flap sealing gasket and valve base sealing pad all are exposed in the medium, are easy to corrosion failure, produce to reveal.
(3) summary of the invention
The purpose of this utility model is to disclose a kind of internal structure to be connected firmly, effectively antiscour, the erosion-resisting coal generating gas Angle Stop valves that surges.
The purpose of this utility model is achieved in that the coal generating gas main mountain of the Angle Stop valves valve body that surges, valve gap, valve seat, flap, valve rod and flange plate are formed, between valve body and the valve gap, all be connected between flange plate and the valve body with bolt, flap is the step structure of lower diameter less than upper diameter, on the outside thread of flap lower end the flap nut is installed, flap top ladder is to the flap sealing gasket is installed between the flap nut from top to bottom successively, the flap seal ring that the high hardness alloy material is made, the recess of valve seat is equipped with the valve seat insert of high hardness, the valve seat nut that valve seat insert is fastened on the valve seat holds out against from the below, it is characterized in that flap and valve rod are structure as a whole, the flap nut is a blind hole internal thread tape guide nut, flap top ladder lower surface is provided with groove, the flap sealing gasket is inlayed and is installed in it, the valve seat upper surface is provided with groove, and the valve base sealing pad is inlayed and installed in it.
New valve rod of this practicality and flap become one, and have overcome the phenomenon with link generation screw thread loose or dislocations such as straight pins, make life of valve improve three times; Streamlined guide structure has been adopted in the flap nut bottom of flap, makes it to have reduced when opening the resistance to medium, has avoided washing away, and makes the life-span improve four times; The flap nut adopts blind hole internal thread tape guide nut, fully the outside thread bag of flap within it, makes it not contact with medium, has avoided the corrosion of medium to wash away, and makes it to improve life of valve; The flap sealing gasket is contained in the groove of flap with mosaic structure, has avoided contacting with medium, has prevented washing away and corroding of medium, uses the flap sealing gasket that is set in the groove instead and need not change throughout one's life.
Comprehensive the problems referred to above are improved, and have improved the life-span of the practicality of valve greatly, and in actual use as calculated, whole deck valve door has improved 3 ~ 5 times working life.
(4) description of drawings
Fig. 1 is a sectional view of the present utility model.
(5) embodiment
Below in conjunction with accompanying drawing the utility model is further described:
In conjunction with Fig. 1, present embodiment is mainly by valve body 1, valve gap 2, valve seat 3, flap 4, valve rod 5 and two flange plate 6 are formed, between valve body 1 and the valve gap 2, all be connected between two flange plate 6 and the valve body 1 with bolt 7, flap 4 is lower diameter step structures less than upper diameter, on the flap 4 lower end outside threads flap nut 8 is installed, flap 4 top ladders are to flap sealing gasket 9 is installed between the flap nut 8 from top to bottom successively, the flap seal ring 10 that the high hardness alloy material is made, the recess of valve seat 3 is equipped with the valve seat insert 11 of high hardness, the valve seat nut 12 that valve seat insert 11 is fastened on the valve seat 3 holds out against from the below, it is characterized in that flap 3 and valve rod 5 are structure as a whole, flap nut 8 is a blind hole internal thread tape guide nut, flap 4 top ladders are provided with groove, flap sealing gasket 9 is inlayed and is installed in it, valve seat 3 upper surfaces are provided with groove, and valve base sealing pad 13 is inlayed and installed in it.
Claims (1)
1, the coal generating gas Angle Stop valves that surges, it is mainly by valve body, valve gap, valve seat, flap, valve rod and flange plate are formed, between valve body and the valve gap, all be connected between flange plate and the valve body with bolt, flap is the step structure of lower diameter less than upper diameter, on the outside thread of flap lower end the flap nut is installed, flap top ladder is to the flap sealing gasket is installed between the flap nut from top to bottom successively, the flap seal ring that the high hardness alloy material is made, the recess of valve seat is equipped with the valve seat insert of high hardness, the valve seat nut that valve seat insert is fastened on the valve seat holds out against from the below, it is characterized in that described flap and valve rod are structure as a whole, the flap nut is a blind hole internal thread tape guide nut, flap top ladder lower surface is provided with groove, the flap sealing gasket is inlayed and is installed in it, the valve seat upper surface is provided with groove, and the valve base sealing pad is inlayed and installed in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200997185U CN201401515Y (en) | 2009-04-29 | 2009-04-29 | Coal gas hydrodynamic angle-type cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200997185U CN201401515Y (en) | 2009-04-29 | 2009-04-29 | Coal gas hydrodynamic angle-type cut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201401515Y true CN201401515Y (en) | 2010-02-10 |
Family
ID=41661312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200997185U Expired - Fee Related CN201401515Y (en) | 2009-04-29 | 2009-04-29 | Coal gas hydrodynamic angle-type cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201401515Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537377A (en) * | 2012-01-17 | 2012-07-04 | 浙江师范大学 | Control valve capable of automatically pressurizing |
| CN102748484A (en) * | 2012-07-23 | 2012-10-24 | 岳阳筑盛阀门管道有限责任公司 | Angle type drain valve |
-
2009
- 2009-04-29 CN CN2009200997185U patent/CN201401515Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537377A (en) * | 2012-01-17 | 2012-07-04 | 浙江师范大学 | Control valve capable of automatically pressurizing |
| CN102537377B (en) * | 2012-01-17 | 2014-09-24 | 广东梅雁吉祥水电股份有限公司 | Control valve capable of automatically pressurizing |
| CN102748484A (en) * | 2012-07-23 | 2012-10-24 | 岳阳筑盛阀门管道有限责任公司 | Angle type drain 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: 20100210 Termination date: 20120429 |