CN2795580Y - Dilating type flat plate gate valve - Google Patents
Dilating type flat plate gate valve Download PDFInfo
- Publication number
- CN2795580Y CN2795580Y CN 200520071584 CN200520071584U CN2795580Y CN 2795580 Y CN2795580 Y CN 2795580Y CN 200520071584 CN200520071584 CN 200520071584 CN 200520071584 U CN200520071584 U CN 200520071584U CN 2795580 Y CN2795580 Y CN 2795580Y
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- CN
- China
- Prior art keywords
- valve
- gate
- flat plate
- utility
- model
- 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 an expansion type flat plate gate valve which comprises a valve body, a valve seat, a valve cap, a valve rod, a gate plate, a sealing member and an installation member, wherein the valve seat is a fixed structure, and the gate plate uses a wedge-shaped expansion type structure of a main and an auxiliary gate plates. The valve rod is sealed to form an open type seal structure, and a gap is arranged between the filler gland and the valve cap. Sealing filler is made of flexible graphite. The utility model has the advantages of good heat radiation, high thermal resistance, etc., and is suitable for high temperature medium working conditions.
Description
Technical field
The utility model relates to a kind of valve, particularly about a kind of extruding/shrinking type plate valve.
Background technique
The flashboard of extruding/shrinking type plate valve adopts the wedge-shaped structure between the major-minor flashboard, reduces the wearing and tearing of valve seal pair when opening and closing, and the sealability and the working life of improving valve effectively, is widely used in carrying the operating mode and the burning line of liquid, gas medium.But existing its valve stem seal of extruding/shrinking type plate valve generally adopts enclosed construction, and the heat resistance and the thermal diffusivity of its stuffing box packing are relatively poor, the serviceability temperature of limiter valve, and the worst cold case that generally is confined to below 121 ℃ uses.
Summary of the invention
The purpose of this utility model is the problem that exists at prior art, provides a kind of serviceability temperature high bracing type plate valve.
The technological scheme that realizes the utility model purpose comprises valve body, valve seat, valve gap, valve rod, flashboard, Sealing and assembling set, valve seat is a stationary structure, flashboard adopts major-minor flashboard wedge shape bracing type structure, mainly be that valve stem seal is open sealing configuration, be to leave the space between Gland and the valve gap, Expanded graphite is adopted in stuffing box packing.
The utility model beneficial effect compared with prior art is that valve stem seal is open sealing configuration, and Expanded graphite is adopted in stuffing box packing, and it is good to have a thermal diffusivity, and the heat resistance advantages of higher can be applicable to the high temperature media operating mode.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Now further describe the technical solution of the utility model in conjunction with the accompanying drawings and embodiments.
Bracing type plate valve as shown in Figure 1, comprise valve body 1, valve seat 4, valve gap 6, valve rod 5, flashboard, Sealing and assembling set, valve seat 4 is a stationary structure, be valve seat 4 with valve body 1 between be connected firmly, flashboard adopts main gate-board 2 and auxiliary gate-board 3 to form by wedge shape bracing type structure, when valve closing the major-minor flashboard is strutted, and compresses sealing surface, produce seal pressure, form and force metallic seal; Valve stem seal is open sealing configuration, be to leave the space between Gland 10 and the valve gap 6, Expanded graphite is adopted in stuffing box packing 9, makes stuffing box packing 9 have heat dispersion and heat resistance preferably, by selection, make the valve maximum operation (service) temperature reach 595 ℃ to the valve body material.Stuffing box packing 9 is provided with layer flexible graphite on filler seat 7 and Packing seat 8.
Claims (1)
1, a kind of bracing type plate valve, comprise valve body (1), valve seat (4), valve gap (6), valve rod (5), flashboard, Sealing and assembling set, valve seat (4) is a stationary structure, flashboard adopts main gate-board (2) and auxiliary gate-board (3) to form by wedge shape bracing type structure, it is characterized in that valve stem seal is open sealing configuration, be to leave the space between Gland (10) and the valve gap (6), Expanded graphite is adopted in stuffing box packing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071584 CN2795580Y (en) | 2005-05-08 | 2005-05-08 | Dilating type flat plate gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071584 CN2795580Y (en) | 2005-05-08 | 2005-05-08 | Dilating type flat plate gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795580Y true CN2795580Y (en) | 2006-07-12 |
Family
ID=36813335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520071584 Expired - Fee Related CN2795580Y (en) | 2005-05-08 | 2005-05-08 | Dilating type flat plate gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795580Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042099A (en) * | 2015-08-27 | 2015-11-11 | 纽威石油设备（苏州）有限公司 | High-temperature and high-pressure sluice valve |
-
2005
- 2005-05-08 CN CN 200520071584 patent/CN2795580Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042099A (en) * | 2015-08-27 | 2015-11-11 | 纽威石油设备（苏州）有限公司 | High-temperature and high-pressure sluice valve |
| CN105042099B (en) * | 2015-08-27 | 2018-01-16 | 纽威石油设备（苏州）有限公司 | HTHP gate 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: 20060712 Termination date: 20100508 |