CN201651373U - Rolling and supporting flat gate valve - Google Patents
Rolling and supporting flat gate valve Download PDFInfo
- Publication number
- CN201651373U CN201651373U CN2010201141790U CN201020114179U CN201651373U CN 201651373 U CN201651373 U CN 201651373U CN 2010201141790 U CN2010201141790 U CN 2010201141790U CN 201020114179 U CN201020114179 U CN 201020114179U CN 201651373 U CN201651373 U CN 201651373U
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- CN
- China
- Prior art keywords
- valve
- guide rail
- rail sleeve
- flat gate
- gate valve
- 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 a rolling and supporting flat gate valve, aiming to provide the flat gate valve which has the low operation torque. The rolling and supporting flat gate valve comprises a guide rail sleeve which is arranged between a valve base and a valve body, the guide rail sleeve and the valve body are sealed through a sealing ring, the guide rail sleeve and the valve base lead the valve base to press a shutter tightly through a spring. A pin axle is arranged at the symmetrical position of two sides of the shutter, a roller bearing is sheathed on the pin axle, the roller bearing is sheathed in the guide rail sleeve. In the utility model, through the mode that the sliding friction of a sealing pair of the shutter is changed to the rolling friction when the shutter is moved, the operation torque when a valve is opened and closed is decreased significantly, the opening time of the valve is shortened, the structure thereof is compact, the sealing is reliable, the rolling and supporting flat gate valve is applicable to be used as the flat gate valve with oil pipeline, gas pipeline and the like.
Description
Affiliated technical field
The utility model relates to a kind of novel flat-plate gate valve, and the supporting structure of especially rolling plate valve belongs to valve technology field.
Background technique
At present, along with the progress of pipe technology, the pressure of piping design is more and more higher, and pipeline drift diameter is increasing, and the pressure of pipe-line has surpassed 16MPa, and latus rectum has surpassed 1000mm.Because plate valve is the floating valve seat form, under the pressure medium effect, flashboard is close to the downstream sealing surface of seat, the steering force of total head difference lower flashboard is taken advantage of the sealing surface friction factor for the medium positive pressure, though sealing surface has been selected the less teflon of friction factor (friction factor is 0.05～0.1) for use, but valve operation power is still bigger, under particularly big latus rectum and the high pressure situation, valve operation power increases rapidly, the valve operating device model specification is big, even have to adopt speed decreasing and force boosting device, cost is higher, has also prolonged the opening and closing time of valve simultaneously.
The model utility content
Existing valve operation power is big in order to overcome, the opening and closing time of valve is long not enough, and the utility model provides a kind of rolling supporting structure plate valve.
The technological scheme that its technical problem that solves the utility model adopts is: rolling supporting structure plate valve.It comprises between valve seat and the valve body and is provided with guide rail sleeve, and guide rail sleeve and valve body seal by seal ring, and guide rail sleeve and valve seat make valve seat press flashboard by spring, and flashboard bilateral symmetry place is provided with bearing pin, is with roller bearing on the bearing pin, and roller bearing is enclosed within the guide rail sleeve.
The beneficial effects of the utility model are, become the force of rolling friction that flashboard moves by the force of sliding friction with the flashboard sealing pair, have significantly reduced the operational torque of valve opening and closing, shorten the opening time of valve, its structure is tight, and sealing is reliable, is suitable for the plate valve of pipelines such as oil, gas.
Description of drawings
Fig. 1 is an ordinary flat Gate-valve sealing structural drawing;
Fig. 2 is a structural drawing of the present utility model.
Component and numbering among the figure:
The 1-valve body; The 2-seal ring; The 3-spring; The 4-seal ring; The 5-valve seat; The 6-seal ring;
The 7-flashboard; The 8-guide rail sleeve; The 9-roller bearing; The 10-bearing pin; The 11-clamp ring;
The 12-dust cover.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Rolling supporting-type flat gate valve comprises valve body 1, spring 3, valve seat 5, flashboard 7; Be provided with guide rail sleeve 8 between valve seat 5 and the valve body 1, guide rail sleeve 8 seals by seal ring 2 with valve body 1, and guide rail sleeve 8 makes valve seat 5 press flashboard 7 with valve seat 5 by spring 3, and flashboard 7 bilateral symmetry places are provided with bearing pin 10, be with roller bearing 9 on the bearing pin 10, roller bearing 9 is enclosed within the guide rail sleeve 8.
As shown in Figure 2, guide rail sleeve 8 is installed between valve body 1 and the valve seat 5, guide rail sleeve 8 seals by seal ring 2 with valve body 1, valve seat 5 can float between flashboard 7 and guide rail sleeve 8 end faces, between guide rail sleeve 8 and the valve seat 5 spring 3 is arranged, spring 3 promotes valve seat 5 and tightly suppresses flashboard 7, and guide rail sleeve 8 seals by seal ring 4 with valve seat 5, seals between 6 pairs of valve seats 5 of seal ring and the flashboard 7.
Flashboard 7 bilateral symmetry are provided with a plurality of circular holes, and bearing pin 10 is housed in the circular hole, and bearing pin 10 quantity are selected according to the latus rectum and the pressure of valve, are generally 6-10, are with roller bearing 9 on the bearing pin 10.Bearing pin 10 is terminal by clamp ring 11 axial restraint roller bearings 9, and dust cover 12 is equipped with in guide rail sleeve 8 sides, prevents that impurity from entering in the chamber of roller bearing 9.
Roller bearing 9 peripheries are higher than the about 0.5mm in flashboard 7 planes, and its cavity fills up packing grease, press to be fitted with guide rail sleeve 8 in valve body 1, and the working surface that guide rail sleeve 8 contacts with roller bearing 9 has been done the processing of hardening.
Fig. 1 is the contrast schematic representation of Fig. 2.
When in the pipeline pressure medium being arranged, the pressure that flashboard 7 is subjected to has pipeline pressure P1 and spring 3 pressure P 2, and the resistance that lifting flashboard 7 need overcome is Pii
Pii＝P1×f2+P2×f1
F2 is a coefficient of rolling friction.
Because P1 is much larger than P2, f2 is much smaller than f1.Thus, Pii is much smaller than Pi.In the test of reality, Pii is about 20% of Pi.
Use the large caliber flat plate gate valve (DN＞800mm) of this structure, the conversion rolling friction (friction factor is 0.002) more than 70% of the force of sliding friction of plate valve (friction factor is 0.05～0.1), flashboard 7 total pulling forces only are 30% of ordinary construction, reduce valve operation moment greatly, shortened the opening time of valve.
Claims (5)
1. rolling supporting-type flat gate valve, comprise valve body (1), spring (3), valve seat (5), flashboard (7), it is characterized in that, be provided with guide rail sleeve (8) between valve seat (5) and the valve body (1), guide rail sleeve (8) seals by seal ring (2) with valve body (1), guide rail sleeve (8) makes valve seat (5) press flashboard (7) with valve seat (5) by spring (3), flashboard (7) bilateral symmetry place is provided with bearing pin (10), be with roller bearing (9) on the bearing pin (10), roller bearing (9) is enclosed within the guide rail sleeve (8).
2. rolling supporting-type flat gate valve according to claim 1 is characterized in that, described bearing pin (10) is terminal by clamp ring (11) axial restraint roller bearing (9).
3. rolling supporting-type flat gate valve according to claim 1 is characterized in that, described guide rail sleeve (8) side end face is provided with dust cover (12).
4. rolling supporting-type flat gate valve according to claim 1 is characterized in that, the cylindrical of (9) of described roller bearing is higher than the about 0.5mm of flashboard (7).
5. rolling supporting-type flat gate valve according to claim 1 is characterized in that, the bearing element interplanar distance of described guide rail sleeve (8) is than the big 1mm of roller bearing (9) external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201141790U CN201651373U (en) | 2010-02-20 | 2010-02-20 | Rolling and supporting flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201141790U CN201651373U (en) | 2010-02-20 | 2010-02-20 | Rolling and supporting flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651373U true CN201651373U (en) | 2010-11-24 |
Family
ID=43116610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201141790U Expired - Fee Related CN201651373U (en) | 2010-02-20 | 2010-02-20 | Rolling and supporting flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651373U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537393A (en) * | 2012-01-09 | 2012-07-04 | 厦门弘维能源环境技术有限公司 | Electric gate valve |
| CN102720852A (en) * | 2012-05-31 | 2012-10-10 | 圣博莱阀门有限公司 | Wear-resistant sliding-plate valve |
| CN104455518A (en) * | 2014-11-28 | 2015-03-25 | 苏州市吴中区大陆电子设备厂 | Gate valve sealing structure |
| CN105257852A (en) * | 2015-11-02 | 2016-01-20 | 苏州市淞舜五金有限公司 | Sealing sluice valve |
| CN105276215A (en) * | 2015-11-02 | 2016-01-27 | 苏州市淞舜五金有限公司 | Stable sealing gate valve |
| CN105715813A (en) * | 2016-04-29 | 2016-06-29 | 浙江工业大学 | Handle-free filtration gate valve |
| CN114413010A (en) * | 2022-03-29 | 2022-04-29 | 东营恒基石油科技有限公司 | Low-torque flat gate valve capable of being forcedly sealed |
-
2010
- 2010-02-20 CN CN2010201141790U patent/CN201651373U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537393A (en) * | 2012-01-09 | 2012-07-04 | 厦门弘维能源环境技术有限公司 | Electric gate valve |
| CN102537393B (en) * | 2012-01-09 | 2014-05-28 | 厦门美甘齐动物料输送工程股份有限公司 | Electric gate valve |
| CN102720852A (en) * | 2012-05-31 | 2012-10-10 | 圣博莱阀门有限公司 | Wear-resistant sliding-plate valve |
| CN104455518A (en) * | 2014-11-28 | 2015-03-25 | 苏州市吴中区大陆电子设备厂 | Gate valve sealing structure |
| CN105257852A (en) * | 2015-11-02 | 2016-01-20 | 苏州市淞舜五金有限公司 | Sealing sluice valve |
| CN105276215A (en) * | 2015-11-02 | 2016-01-27 | 苏州市淞舜五金有限公司 | Stable sealing gate valve |
| CN105715813A (en) * | 2016-04-29 | 2016-06-29 | 浙江工业大学 | Handle-free filtration gate valve |
| CN114413010A (en) * | 2022-03-29 | 2022-04-29 | 东营恒基石油科技有限公司 | Low-torque flat gate valve capable of being forcedly sealed |
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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: 20101124 Termination date: 20150220 |
|
| EXPY | Termination of patent right or utility model |