CN204004503U - A kind of long-distance transport pipes plate valve - Google Patents
A kind of long-distance transport pipes plate valve Download PDFInfo
- Publication number
- CN204004503U CN204004503U CN201420484378.9U CN201420484378U CN204004503U CN 204004503 U CN204004503 U CN 204004503U CN 201420484378 U CN201420484378 U CN 201420484378U CN 204004503 U CN204004503 U CN 204004503U
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- Prior art keywords
- valve
- flashboard
- valve body
- sealing surface
- seat
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- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 claims abstract description 87
- 239000000956 alloy Substances 0.000 claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The utility model discloses a kind of long-distance transport pipes plate valve, comprise valve body, in valve body, be provided with medium channel and for blocking the flashboard of medium channel, between flashboard and valve body, be provided with the sealing mechanism of closed dielectric passage, described sealing mechanism comprises: flashboard sealing surface, valve seat, sealing surface of seat, elastic support member and soft seal circle, and flashboard sealing surface is the hard alloy layer being sprayed on flashboard; Valve seat is arranged on the valve body corresponding with flashboard sealing surface, and the inner side surface of valve seat is medium channel, between outer side surface and valve body, is provided with sealed member; Sealing surface of seat is the hard alloy layer that is sprayed at valve seat one end face corresponding with flashboard sealing surface; Elastic support member is between valve seat other end and valve body; Soft seal circle is nested in the valve seat in the middle of sealing surface of seat, and can contact with flashboard sealing surface.Long-distance transport pipes plate valve of the present utility model, will firmly seal with soft seal and combine, and sealing effect is better.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of long-distance transport pipes plate valve.
Background technique
Along with industrialized development, the resource such as oil, rock gas has become the core force of world today's energy consumption, long-term exploitation because of resource, often the energy of this area cannot solve the problem that mass energy consumes, therefore need to be from remote other resourceful regional transfer oil, rock gas equal energy source.Therefore, the valve of long-distance transport pipes and use thereof becomes the main tool that the energy is carried, for long-distance transport pipes can be in mountain region, environment and the more severe place of weather such as desert, marsh or plateau, can safe, leak free transport gas or petroleum resources, the sealing of valve has played crucial effect.Plate valve because of its good airproof performance, open and close flexibly, thereby be widely used in long-distance transport pipes.
Traditional plate valve is according to its sealing configuration, can be divided into hard seal gate valve, soft sealing gate valve, sealing and soft seal combine firmly double seal gate valve, the gate valve of double seal be mainly take soft seal as main, be firmly sealed into auxiliary, or take and be firmly sealed into main, soft seal as auxiliary, during every day use, only have wherein a kind of Sealing to work, only have the seal by the time to occur after heavy wear, another Sealing just plays seal action, so in fact also single seal gate valve of double seal gate valve.So existing plate valve is still difficult to be adapted to environment and weather and severe place thereof, the sealing of plate valve is easily subject to the impact of environmental factor, and working life is short, and making and maintenance expenses are high.
Model utility content
The purpose of this utility model is: the poor problem of sealing for the plate valve of prior art, a kind of long-distance transport pipes plate valve is provided, and the double sealing structure that adopts hard sealing and soft seal to combine, sealing obviously improves.
To achieve these goals, the technical solution adopted in the utility model is:
A long-distance transport pipes plate valve, comprises valve body, is provided with medium channel and for blocking the flashboard of medium channel, is provided with the sealing mechanism of closed dielectric passage between flashboard and valve body in valve body, and described sealing mechanism comprises:
Flashboard sealing surface, is sprayed at the hard alloy layer on flashboard;
Valve seat, is arranged on the valve body corresponding with flashboard sealing surface, and the inner side surface of valve seat is medium channel, between outer side surface and valve body, is provided with sealed member;
Sealing surface of seat, is sprayed at the hard alloy layer of valve seat one end face corresponding with flashboard sealing surface;
Elastic support member, between valve seat other end and valve body;
Soft seal circle, is nested in the middle valve seat of sealing surface of seat, and can contacts with flashboard sealing surface.
As a kind of preferred version, described flashboard sealing surface surface is widia.
As a kind of preferred version, the sealing surface of seat surface of telling is widia.
As a kind of preferred version, described sealed member adopts O RunddichtringO.
As a kind of preferred version, described sealed member is provided with at least two.
As a kind of preferred version, described elastic support member is wavy spring, and wavy spring is installed in the groove of valve seat end face.
As a kind of preferred version, on described valve body, be provided with and detect the sealing valve phase indicator that flashboard is positioned at opening state and closed condition.
As a kind of preferred version, described valve body comprises main valve body and lid valve body, in the middle of valve body, be also provided with the valve rod that drives flashboard to move, in the middle of main valve body, it is medium channel, in the middle of lid valve body, can hold flashboard and valve rod, on valve rod, be provided with spacing top and spacing bottom, flashboard is when buttoned-up status, and the spacing bottom of valve rod contacts with main valve body; Flashboard is when complete opening state, and the spacing top of valve rod contacts with lid valve body.
A kind of long-distance transport pipes plate valve of the present utility model, has the double seal mechanism that hard sealing and soft seal combine, and when low-pressure state, primary seal effect is played in soft seal; Under high pressure conditions, firmly sealed primary seal effect, can effectively protect like this soft seal not damaged; No matter can realize sealing reliably in low pressure or high pressure, truly realize double-sealing, improve the sealing effect of plate valve.
Meanwhile, by sealing valve phase indicator external on valve body, can know the particular location that indicates valve opening and closing, conveniently realize the open/close states of remote monitoring valve.
Accompanying drawing explanation
Fig. 1 is plate valve plan view of the present utility model.
Fig. 2 is the A portion enlarged view of Fig. 1.
Fig. 3 is that the utility model sealing mechanism is for schematic diagram under passive state.
Fig. 4 is that the utility model sealing mechanism is for schematic diagram under low-pressure state.
Fig. 5 is that the utility model sealing mechanism is for schematic diagram under high pressure conditions.
Mark in figure: 1-valve body, 11-main valve body, 12-covers valve body, 2-flashboard, 3-medium channel, 4-sealing mechanism, 41-flashboard sealing surface, 42-valve seat, 43-sealing surface of seat, 44-soft seal circle, 45-elastic support member, 46-sealed member, 47-groove, 5-valve rod, the spacing top of 51-, the spacing bottom of 52-, 6-seals valve phase indicator.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of long-distance transport pipes plate valve of the present utility model, comprises valve body 1, is provided with medium channel 3 and for blocking the flashboard 2 of medium channel 3, is provided with the sealing mechanism 4 of closed dielectric passage 3 between flashboard 2 and valve body 1 in valve body 1.Valve body 1 comprises main valve body 11 and lid valve body 12, between main valve body 11 and lid valve body 12, adopts the mode of docking submerged arc welding to connect; Main valve body 11 comprises again left and right long-neck end flange, middle connection welding neck flange, moulding compacting bottom and main valve chamber, and each several part all connects by the mode of docking submerged arc welding, and throat thickness and wall thickness are equal to, and welding consumables portion is lower than body material.
In the middle of valve body 1, be also provided with the valve rod 5 that drives flashboard 2 to move, in the middle of main valve body 11, it is medium channel 3, in the middle of lid valve body 12, can hold flashboard 2 and valve rod 5, on valve rod 5, be provided with spacing top 51 and spacing bottom 52, flashboard 2 is when buttoned-up status, the spacing bottom 52 of valve rod 5 contacts with main valve body 11, forms spacing; Flashboard 2 is when complete opening state, and the spacing top 51 of valve rod 5 contacts with lid valve body 12, forms spacing.
Upper outside being equipped with of valve body 1 detected the sealing valve phase indicator 6 that flashboard 2 is positioned at opening state and closed condition.
Sealing mechanism 4 between flashboard 2 and valve body 1 comprises flashboard sealing surface 41, valve seat 42, sealing surface of seat 43, elastic support member 45 and soft seal circle 44.Valve seat 42 is arranged on the valve body corresponding with flashboard sealing surface 41 1, and the inner side surface of valve seat 42 is medium channel 3, between outer side surface and valve body 1, is provided with sealed member 46, the O RunddichtringO that in the present embodiment, sealed member 46 is selected, and O RunddichtringO is provided with two.Flashboard sealing surface 41 is for to be sprayed at the hard alloy layer on flashboard 2, and the widia adopting in the present embodiment, can certainly be used other high Hardmetal materials.Sealing surface of seat 43 is for being sprayed at the WC cemented carbide layer of valve seat 42 end faces that contact with flashboard sealing surface 41, by with flashboard sealing surface 41 between contact and form hard sealing.
Valve seat 42 is provided with groove 47 on the end face contacting with valve body 1, and the elastic support member 45 of supporting valve seat 42 is installed in groove 47, and the present embodiment preferred wave shape form spring is as elastic support member 45.The application of corrugated sheet spring structure has prevented that valve from being used because of long-term, and in pipeline, foul is deposited on valve seat 42 bottoms and the situation of spring failure is occurred, stable pretightening force is provided.Guarantee the good high and low pressure sealability of valve, the fire-proof function of valve seat 42 sealings is also provided simultaneously.
Soft seal circle 44 is nested in the valve seat 42 in the middle of sealing surface of seat 43, by contacting with flashboard sealing surface 41, forms soft seal.The decrement of soft seal circle 44 is different from himself plastic deformation ability, material, and its compression strength is also different, and meanwhile, decrement is also relevant with the size of soft seal circle 44, and therefore, selecting of soft seal circle 44 can be considered according to actual conditions.
With reference to Fig. 3, represented in figure is passive state, and the valve seat 42 of flashboard 2 left and right sides is subject to the pretightening force effect of elastic support member 45, and the soft seal circle 44 of the left and right sides contacts with flashboard sealing surface 41, realizes initial sealing, and this sealing is real is soft seal.Now, the compressible safety value of design maximum that the distance value f between sealing surface of seat 43 and flashboard sealing surface 41 is soft seal.
When flashboard 2 is during in buttoned-up status, the sealing mechanism 4 of flashboard 2 both sides respectively independent trips, to the pipeline pressure of medium channel 3 upstream and downstreams, is realized two block function of valve.
With reference to Fig. 4, shown in figure for upstream extremity enters low piezodielectric, under the effect of pressure, flashboard 2 section extruding downstream, make the flashboard sealing surface 41 on flashboard 2 right sides and the distance between sealing surface of seat 43 be compressed to 0, the flashboard sealing surface 41 on flashboard 2 right sides is directly contacted with sealing surface of seat 43, and downstream one side forms hard sealing; Simultaneously, the valve seat 42 of upstream extremity is in elastic support member 45 and low piezodielectric acting in conjunction, under the pressure difference effect forming, sealing surface of seat 43 and the gap between flashboard sealing surface 41 of upstream extremity valve seat 42 are compressed to f1 (f1<f) by original f.
With reference to Fig. 5, along with upstream extremity pressure further strengthens, or when the pressure at flashboard 2 two ends is all large, gap between upstream extremity sealing surface of seat 43 and flashboard sealing surface 41 is further compressed to 0 by f1, the sealing surface of seat 43 of upstream extremity one side is also directly contacted with flashboard sealing surface 41, form sealing firmly.
Claims (8)
1. a long-distance transport pipes plate valve, comprise valve body (1), in valve body (1), be provided with medium channel (3) and for blocking the flashboard (2) of medium channel (3), between flashboard (2) and valve body (1), be provided with the sealing mechanism (4) of closed dielectric passage (3), it is characterized in that, described sealing mechanism (4) comprising:
Flashboard sealing surface (41), is sprayed at the hard alloy layer on flashboard (2);
Valve seat (42), is arranged at the valve body (1) corresponding with flashboard sealing surface (41) upper, and the inner side surface of valve seat (42) is medium channel (3), is provided with sealed member (46) between outer side surface and valve body (1);
Sealing surface of seat (43), is sprayed at the hard alloy layer of valve seat (42) one end faces corresponding with flashboard sealing surface (41);
Elastic support member (45), is positioned between valve seat (42) other end and valve body (1);
Soft seal circle (44), is nested in the middle valve seat (42) of sealing surface of seat (43), and can contacts with flashboard sealing surface (41).
2. plate valve according to claim 1, is characterized in that, described flashboard sealing surface (41) surface is widia.
3. plate valve according to claim 1, is characterized in that, the sealing surface of seat of telling (43) surface is widia.
4. plate valve according to claim 1, is characterized in that, described sealed member (46) adopts O RunddichtringO.
5. plate valve according to claim 1, is characterized in that, described sealed member (46) is provided with at least two.
6. plate valve according to claim 1, is characterized in that, described elastic support member (45) is wavy spring, and wavy spring is installed in the groove (47) of valve seat (42) end face.
7. plate valve according to claim 1, is characterized in that, is provided with and detects the sealing valve phase indicator (6) that flashboard (2) is positioned at opening state and closed condition on described valve body (1).
8. plate valve according to claim 1, it is characterized in that, described valve body (1) comprises main valve body (11) and lid valve body (12), in the middle of valve body (1), be also provided with the valve rod (5) that drives flashboard (2) mobile, in the middle of main valve body (11), be medium channel (3), in the middle of lid valve body (12), can hold flashboard (2) and valve rod (5), on valve rod (5), be provided with spacing top (51) and spacing bottom (52), flashboard (2) is when buttoned-up status, and the spacing bottom (52) of valve rod (5) contacts with main valve body (11); Flashboard (2) is when complete opening state, and the spacing top (51) of valve rod (5) contacts with lid valve body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484378.9U CN204004503U (en) | 2014-08-26 | 2014-08-26 | A kind of long-distance transport pipes plate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484378.9U CN204004503U (en) | 2014-08-26 | 2014-08-26 | A kind of long-distance transport pipes plate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004503U true CN204004503U (en) | 2014-12-10 |
Family
ID=52044506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484378.9U Expired - Lifetime CN204004503U (en) | 2014-08-26 | 2014-08-26 | A kind of long-distance transport pipes plate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197032A (en) * | 2014-08-26 | 2014-12-10 | 自贡自高阀门有限公司 | Flat gate valve for long-distance conveying pipeline |
-
2014
- 2014-08-26 CN CN201420484378.9U patent/CN204004503U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197032A (en) * | 2014-08-26 | 2014-12-10 | 自贡自高阀门有限公司 | Flat gate valve for long-distance conveying pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |