CN2484442Y - Stop valve suitable for gas pipeline - Google Patents
Stop valve suitable for gas pipeline Download PDFInfo
- Publication number
- CN2484442Y CN2484442Y CN 01240202 CN01240202U CN2484442Y CN 2484442 Y CN2484442 Y CN 2484442Y CN 01240202 CN01240202 CN 01240202 CN 01240202 U CN01240202 U CN 01240202U CN 2484442 Y CN2484442 Y CN 2484442Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- gas pipeline
- stop valve
- flap
- 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 relates to a break valve for a gas pipeline, which comprises a valve body assembly which is provided with a ring sealing groove on a valve flap sealing surface and an elastic sealing ring at an inner side; the elastic sealing ring thickness is larger than the ring sealing groove depth. On the top of the valve flap, an end face connected with the valve stem is provided with a chamber and elastic pieces arranged in the chamber. By adopting the structure, the utility model has advantages of improving the valve sealing effect, having a long service life of soft sealing, holding size in hard sealing and heat, so as to realize the soft and hard sealing.
Description
The utility model relates to a kind of stop valve, relates to a kind of stop valve that is applicable to gas pipeline specifically.
At present, the commercially available stop valve seal form that is used for gas pipeline mostly is two kinds of hard sealing and soft seals.Take hard seal form, sealing effect is relatively poor; Though and employing soft seal form good sealing effect easily causes the sealing surface overload and reduces working life when using, soft sealing face will be lost seal action by scaling loss when breaking out of fire simultaneously.
The purpose of this utility model provides a kind of stop valve that is applicable to gas pipeline with regard to being at above-mentioned existing in prior technology deficiency.
The purpose of this utility model can realize by following technical measures:
The bright novel valve body assembly that comprises of this reality, flap and valve seat are provided with a soft seal mechanism in the described valve body assembly.
Described soft seal mechanism is the elastic sealing ring that is arranged on the annular seal groove on the described flap sealing surface and sets within it; The thickness of described elastic sealing ring is greater than the degree of depth of described annular seal groove; Certainly, described soft seal mechanism also can be annular seal groove that is arranged on the sealing surface of seat and the elastic sealing ring that sets within it; The thickness of described elastic sealing ring is greater than the degree of depth of described annular seal groove; On described flap, be positioned at the elastic component that the end face that contacts with valve rod offers a chamber and is arranged on this chamber; The flap of described valve body assembly covers sealing surface and is provided with a sealing gasket; The flange facing of described valve body assembly is provided with a seal groove and the seal ring that places in it.
Advantage of the present utility model is provided with an annular seal groove and the elastic sealing ring that sets within it with regard to being by the sealing surface of flap in the described valve body assembly, thereby realized soft, hard double seal purpose, and the Thickness Design of described elastic sealing ring is become the degree of depth greater than described annular seal groove, make when closing stop valve, elastic sealing ring is at first closed the blast tube in the valve seat under the effect of valve rod power to realize soft seal, is arranged on the interior elastic component compressive deformation of described chamber simultaneously and energy storage; When the breaking out of fire soft sealing face is lost seal action by scaling loss, flap is closed the blast tube in the valve seat under the effect of described elastic component elastic force this moment, and be provided with a sealing gasket because the flap of described valve body assembly covers sealing surface, prevented that combustion gas is from the phenomenon of valve rod to external leakage behind Open valve.
The drawing of accompanying drawing is described as follows:
Fig. 1 cuts open figure for the utility model embodiment 1 master.
Fig. 2 cuts open figure for the utility model embodiment 2 master.
The utility model describes in further detail below in conjunction with specific embodiment (accompanying drawing):
Embodiment 1:
As shown in Figure 1, the utility model comprises valve body assembly, the elastic sealing ring 4 that offers an annular seal groove 3 on flap 1 sealing surface and set within it in described valve body assembly; The thickness of described elastic sealing ring 4 is greater than the degree of depth of described annular seal groove 3.On described flap 1, be positioned at the elastic component 9 that the end face that contacts with valve rod 7 offers a chamber 8 and is arranged on this chamber 8.Sealing surface is provided with a sealing gasket 11 on the flap lid 10 of valve body assembly.
Embodiment 2:
As shown in Figure 2, the utility model comprises valve body assembly, offers an annular seal groove 5 and the elastic sealing ring 6 that places in it in described valve body assembly on valve seat 2 sealing surfaces; The thickness of described elastic sealing ring 6 is greater than the degree of depth of described annular seal groove 5.On described flap 1, be positioned at the elastic component 9 that the end face that contacts with valve rod 7 offers a chamber 8 and places this chamber 8.Flange 12 sealing surfaces of valve body assembly are provided with a seal groove 13 and the seal ring 14 that places in it.
Claims (6)
1, a kind of stop valve that is applicable to gas pipeline, it comprises valve body assembly, it is characterized in that: flap in the described valve body assembly (1) is provided with a soft seal mechanism with valve seat (2).
2, the stop valve that is applicable to gas pipeline according to claim 1 is characterized in that: described soft seal mechanism for be arranged on described flap (on) annular seal groove (3) on the sealing surface and the elastic sealing ring (4) that sets within it; The thickness of described elastic sealing ring (4) is greater than the degree of depth of described annular seal groove (3).
3, the stop valve that is applicable to gas pipeline according to claim 1 is characterized in that: the elastic sealing ring (6) of described soft seal mechanism for being arranged on the annular seal groove (5) on valve seat (2) sealing surface and setting within it; The thickness of described elastic sealing ring (6) is greater than the degree of depth of described annular seal groove (5).
4, the stop valve that is applicable to gas pipeline according to claim 1 is characterized in that: be positioned at the elastic component (9) that the end face that contacts with valve rod (7) offers a chamber (8) and is arranged on this chamber (8) on described flap (1).
5, the stop valve that is applicable to gas pipeline according to claim 1 and 2 is characterized in that: the flap lid (10) of described valve body assembly is gone up sealing surface and is provided with a sealing gasket (11).
6, the stop valve that is applicable to gas pipeline according to claim 1 and 2 is characterized in that: the flange of described valve body assembly (12) sealing surface is provided with a seal groove (13) and places its interior seal ring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240202 CN2484442Y (en) | 2001-05-29 | 2001-05-29 | Stop valve suitable for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240202 CN2484442Y (en) | 2001-05-29 | 2001-05-29 | Stop valve suitable for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2484442Y true CN2484442Y (en) | 2002-04-03 |
Family
ID=33652474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01240202 Expired - Fee Related CN2484442Y (en) | 2001-05-29 | 2001-05-29 | Stop valve suitable for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2484442Y (en) |
-
2001
- 2001-05-29 CN CN 01240202 patent/CN2484442Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |