CN105318012A - Direct-circulating type natural gas stop valve - Google Patents
Direct-circulating type natural gas stop valve Download PDFInfo
- Publication number
- CN105318012A CN105318012A CN201410355560.9A CN201410355560A CN105318012A CN 105318012 A CN105318012 A CN 105318012A CN 201410355560 A CN201410355560 A CN 201410355560A CN 105318012 A CN105318012 A CN 105318012A
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- CN
- China
- Prior art keywords
- valve
- packing
- stop valve
- gland
- natural 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.)
- Pending
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Abstract
The invention relates to the technical field of valves, in particular to a direct-circulating type natural gas stop valve installed on a natural gas pipe for delivering. The direct-circulating type natural gas stop valve comprises a valve body, a packing base is arranged on the valve body, a packing gland is connected to the upper end of the packing base, a valve deck is arranged on the packing gland, and a gearbox is arranged on the valve deck. A gear is arranged in the gearbox. A valve rod is arranged in the valve body, a valve plate is connected to one end of the valve rod, and the other end of the valve rod sequentially penetrates through the packing base, the packing gland, the valve deck and the gearbox to be in threaded connection with a hand wheel. A packing layer is arranged at the portion where the valve rod is in contact with the packing base in a sleeving mode. The direct-circulating type natural gas stop valve is reasonable in design; the hand wheel rotates to open or close the stop valve, motions are flexible, and opening or closing is rapid; as the packing base, the packing gland and the packing layer are matched with each other, the sealing performance of the stop valve is improved; meanwhile, manufacturing and overhauling are convenient, and the service life is long.
Description
Technical field
The present invention relates to valve technology field, especially a kind of direct current type rock gas stop valve being installed on natural gas line conveying.
Background technique
Be used for controlling the flow of gas or liquid in pipeline, reduce their pressure or change the parts of flow direction, being commonly referred to as valve.In natural gas line conveying, indispensable valve is stop valve, is most popular a kind of valve.The closed principle of stop valve is, relies on valve thick stick pressure, valve clack sealing surface and sealing surface of seat are fitted tightly, and stops medium circulation.Traditional stop valve structure is complicated, be not easy to processing, Operation and Maintenance is inconvenient, and due to the friction that valve plate is closed, easily cause the wearing and tearing of seal ring, working life is short, and sealability declines, and easily reveals.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, provides a kind of structure simple, the direct current type rock gas stop valve of good sealing effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of direct current type rock gas stop valve, have valve body, be provided with filler base above valve body, filler base upper end is connected with Gland, be provided with valve gap above Gland, above valve gap, be provided with gear-box; Described gear-box is built-in with gear; Be provided with valve rod in described valve body, valve rod one end is connected with valve plate, and the valve rod the other end is threaded with handwheel through after filler base, Gland, valve gap and gear-box successively; The position that described valve rod contacts with filler base is arranged with packing layer.
Further, be provided with feed cavity and discharging chamber in described valve body, discharging chamber is positioned at above feed cavity, and described valve plate is positioned at discharging chamber.Comparatively laborsaving when Open valve like this.
Further, by the fastening installation of stud bolt between described filler base and Gland.
Further, described valve rod is arranged with axle sleeve at the position that contacts with valve gap and gear-box.
Further, described packing layer is teflon plate filler.
The invention has the beneficial effects as follows: the present invention is reasonable in design, handwheel rotarily opens or cuts out stop valve, flexible movements, and switch is rapid; Filler base, Gland and packing layer cooperatively interact, and improve the sealability of stop valve, manufacture simultaneously and overhaul all more convenient, long service life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
1. valve bodies, 2. feed cavity in figure, 3. discharging chamber, 4. filler base, 5. Gland, 6. valve gap, 7. gear-box, 8. gear, 9. valve rod, 10. valve plate, 11. packing layers, 12. stud bolts, 13. handwheels, 14. axle sleeves.
Embodiment
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
A kind of direct current type rock gas stop valve as shown in Figure 1, have valve body 1, be provided with filler base 4 above valve body 1, filler base 4 upper end is connected with Gland 5, is provided with valve gap 6 above Gland 5, is provided with gear-box 7 above valve gap 6; Gear-box 7 is built-in with gear 8; Be provided with valve rod 10 in valve body 1, valve rod 10 one end is connected with valve plate 10, and valve rod 10 the other end is threaded with handwheel 13 through after filler base 4, Gland 5, valve gap 6 and gear-box 7 successively; The position that valve rod 10 contacts with filler base 4 is arranged with packing layer 11.
Be provided with feed cavity 2 and discharging chamber 3 in valve body 1, discharging chamber 3 is positioned at above feed cavity 2, and valve plate 10 is positioned at discharging chamber 3; By the fastening installation of stud bolt 12 between filler base 4 and Gland 5; Valve rod 10 is arranged with axle sleeve 14 at the position that contacts with valve gap 6 and gear-box 7; Packing layer 11 is teflon plate filler.
When stop valve is opened, rock gas circulates from feed cavity 2 through discharging chamber 3; When closing stop valve, handwheel 13 rotates, and the gear 8 in driving gearbox 7 rotates, thus band ovable valve stem 9 rotates, and valve plate 10 closes downwards, blocks rock gas circulation.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. a direct current type rock gas stop valve, it is characterized in that: there is valve body (1), valve body (1) top is provided with filler base (4), filler base (4) upper end is connected with Gland (5), Gland (5) top is provided with valve gap (6), and valve gap (6) top is provided with gear-box (7); Described gear-box (7) is built-in with gear (8); Valve rod (10) is provided with in described valve body (1), valve rod (10) one end is connected with valve plate (10), and valve rod (10) the other end is threaded with handwheel (13) afterwards through filler base (4), Gland (5), valve gap (6) and gear-box (7) successively; The position that described valve rod (10) contacts with filler base (4) is arranged with packing layer (11).
2. direct current type rock gas stop valve according to claim 1, it is characterized in that: in described valve body (1), be provided with feed cavity (2) and discharging chamber (3), discharging chamber (3) is positioned at feed cavity (2) top, and described valve plate (10) is positioned at discharging chamber (3).
3. direct current type rock gas stop valve according to claim 1, is characterized in that: by stud bolt (12) fastening installation between described filler base (4) and Gland (5).
4. direct current type rock gas stop valve according to claim 1, is characterized in that: described valve rod (10) is arranged with axle sleeve (14) at the position that contacts with valve gap (6) and gear-box (7).
5. direct current type rock gas stop valve according to claim 1, is characterized in that: described packing layer (11) is teflon plate filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355560.9A CN105318012A (en) | 2014-07-24 | 2014-07-24 | Direct-circulating type natural gas stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355560.9A CN105318012A (en) | 2014-07-24 | 2014-07-24 | Direct-circulating type natural gas stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105318012A true CN105318012A (en) | 2016-02-10 |
Family
ID=55246026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410355560.9A Pending CN105318012A (en) | 2014-07-24 | 2014-07-24 | Direct-circulating type natural gas stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105318012A (en) |
-
2014
- 2014-07-24 CN CN201410355560.9A patent/CN105318012A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160210 |
|
| WD01 | Invention patent application deemed withdrawn after publication |