CN203730802U - Ultralow temperature gate valve - Google Patents
Ultralow temperature gate valve Download PDFInfo
- Publication number
- CN203730802U CN203730802U CN201320883981.XU CN201320883981U CN203730802U CN 203730802 U CN203730802 U CN 203730802U CN 201320883981 U CN201320883981 U CN 201320883981U CN 203730802 U CN203730802 U CN 203730802U
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- CN
- China
- Prior art keywords
- valve
- packing
- valve body
- seat
- valve rod
- 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 an ultralow temperature gate valve good in sealing effect. The ultralow temperature gate valve comprises a valve body and a long neck valve cover connected with the valve body through a bolt and a nut. An inlet channel and an outlet channel are arranged in the valve body, a valve seat is arranged on one side of the outlet channel in the valve body, a channel communicated with the outlet channel is arranged in the valve seat, and a valve plate matched with the valve seat is arranged in the valve body. The valve plate is connected with the lower end of a valve rod arranged in the valve body, the upper end of the valve rod is provided with a valve rod nut matched with the valve rod, and a hand wheel is rotatably arranged at the upper end of the valve rod through the valve rod nut. A packing cushion, sealing packing and a packing pressing sleeve are arranged between an inner wall of the middle of the long neck valve cover and the valve rod, the sealing packing is arranged between the packing cushion and the packing pressing sleeve, and a packing pressing plate is arranged on the long neck valve cover at the upper end of the packing pressing sleeve and connected with a connecting lug arranged on the long neck valve cover through a connecting bolt and a cylindrical pin.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to a kind of ultra-low temperature throttle valve.
Background technique
At present, on the pipeline of electric power, waterpower, petrochemical industry, metallurgy industry, all can use gate valve, for the cut-out of liquid in pipeline, existing gate valve is normally made up of institutes such as valve body, valve seat, flashboard, valve rod, long-neck valve gap, handwheels, and when work, by rotating handwheel, band ovable valve stem rotates, because the sealing effect of valve rod and valve gap is bad, valve can not be low temperature resistant, so just reduced the functional reliability of gate valve, shortened the working life of valve.
Model utility content
Technical problem to be solved in the utility model is: the ultra-low temperature throttle valve that a kind of good sealing effect is provided.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: ultra-low temperature throttle valve, comprise: valve body and the long-neck valve gap being connected with valve body by screw bolt and nut, in valve body, be provided with inlet passage and outlet passage, a side at described valve inner outlet passage is provided with valve seat, in valve seat, be provided with the passage being interconnected with outlet passage, in described valve body, be provided with the valve plate cooperatively interacting with valve seat, described valve plate is connected with the lower end that is arranged on the valve rod in valve body, the upper end of described valve rod is provided with the Stem Mut cooperatively interacting with it, handwheel rotates the upper end that is arranged on valve rod by Stem Mut, between described long-neck valve gap intermediate inner wall and valve rod, be provided with Packing seat, stuffing box packing and filler pressing sleeve, stuffing box packing is arranged between Packing seat and filler pressing sleeve, cover and be provided with hold-down grid at the long-neck valve of described filler pressing sleeve upper end, described hold-down grid by connecting bolt and straight pin be arranged on the engaging lug that long-neck valve covers and be connected.
The utility model has the advantages that: above-mentioned ultra-low temperature throttle valve, good sealing effect when work between valve rod and valve gap, processing, easy for installation, low temperature resistant, ensures the reliability of gate valve work, has extended the working life of gate valve.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model ultra-low temperature throttle valve while closing completely.
In figure: 1, valve body, 2, bolt, 3, nut, 4, long-neck valve gap, 5, inlet passage, 6, outlet passage, 7, valve seat, 8, passage, 9, valve plate, 10, valve rod, 11, Stem Mut, 12, handwheel, 13, Packing seat, 14, stuffing box packing, 15, filler pressing sleeve, 16, hold-down grid, 17, connecting bolt, 18, straight pin, 19, engaging lug.
Embodiment
Describe in detail particular content of the present utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, ultra-low temperature throttle valve, comprise: valve body 1 and the long-neck valve gap 4 being connected with valve body 1 with nut 3 by bolt 2, in valve body 1, be provided with inlet passage 5 and outlet passage 6, a side at the inner outlet passage 6 of described valve body 1 is provided with valve seat 7, in valve seat 7, be provided with the passage 8 being interconnected with outlet passage 6, in described valve body 1, be provided with the valve plate 9 cooperatively interacting with valve seat 7, described valve plate 9 is connected with the lower end that is arranged on the valve rod 10 in valve body 1, the upper end of described valve rod 10 is provided with the Stem Mut 11 cooperatively interacting with it, handwheel 12 rotates by Stem Mut 11 upper end that is arranged on valve rod 10, between described long-neck valve gap 4 intermediate inner wall and valve rod 10, be provided with Packing seat 13, stuffing box packing 14 and filler pressing sleeve 15, stuffing box packing 14 is arranged between Packing seat 13 and filler pressing sleeve 15, on the long-neck valve gap 4 of described filler pressing sleeve 15 upper ends, be provided with hold-down grid 16, described hold-down grid 16 is connected with the engaging lug 19 being arranged on long-neck valve gap 4 with straight pin 18 by connecting bolt 17
In the time of needs Open valve, by being rotated counterclockwise handwheel 12, handwheel 12 drives Stem Mut 11 to rotate together, due to Stem Mut 11 and the screw-thread fit effect of valve rod 10 upper ends, 11 rotations of Stem Mut, do not do axial motion, valve rod 10 drives flashboard 9 to make upwards straight line motion, valve plate 9 and valve seat 7 are separated from each other, make to be communicated with between inlet passage 5, passage 8 and outlet passage 6, thereby make valve open.
As shown in Figure 1, in the time of needs throttle down, the handwheel 12 that turns clockwise, handwheel 12 drives Stem Mut 11 to rotate together, due to Stem Mut 11 and the screw-thread fit effect of valve rod 10 upper ends, 11 rotations of Stem Mut, do not do axial motion, valve rod 10 drives flashboard 9 to make downward straight line motion, and valve plate 9 and valve seat 7 are cooperatively interacted, make not to be communicated with between inlet passage 5, passage 8 and outlet passage 6, thereby make valve closing.
Claims (1)
1. ultra-low temperature throttle valve, comprise: valve body (1) and the long-neck valve gap (4) being connected with valve body (1) with nut (3) by bolt (2), in valve body (1), be provided with inlet passage (5) and outlet passage (6), be provided with valve seat (7) in a side of the inner outlet passage of described valve body (1) (6), in valve seat (7), be provided with the passage (8) being interconnected with outlet passage (6), in described valve body (1), be provided with the valve plate (9) cooperatively interacting with valve seat (7), described valve plate (9) is connected with the lower end that is arranged on the valve rod (10) in valve body (1), the upper end of described valve rod (10) is provided with the Stem Mut (11) cooperatively interacting with it, handwheel (12) rotates the upper end that is arranged on valve rod (10) by Stem Mut (11), it is characterized in that: between described long-neck valve gap (4) intermediate inner wall and valve rod (10), be provided with Packing seat (13), stuffing box packing (14) and filler pressing sleeve (15), stuffing box packing (14) is arranged between Packing seat (13) and filler pressing sleeve (15), on the long-neck valve gap (4) of described filler pressing sleeve (15) upper end, be provided with hold-down grid (16), described hold-down grid (16) is connected with the engaging lug (19) being arranged on long-neck valve gap (4) with straight pin (18) by connecting bolt (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883981.XU CN203730802U (en) | 2013-12-31 | 2013-12-31 | Ultralow temperature gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883981.XU CN203730802U (en) | 2013-12-31 | 2013-12-31 | Ultralow temperature gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730802U true CN203730802U (en) | 2014-07-23 |
Family
ID=51200877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320883981.XU Expired - Fee Related CN203730802U (en) | 2013-12-31 | 2013-12-31 | Ultralow temperature gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759029A (en) * | 2013-12-31 | 2014-04-30 | 江苏盐电阀门有限公司 | Ultralow-temperature throttle valve |
-
2013
- 2013-12-31 CN CN201320883981.XU patent/CN203730802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759029A (en) * | 2013-12-31 | 2014-04-30 | 江苏盐电阀门有限公司 | Ultralow-temperature throttle valve |
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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: 20140723 Termination date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |