CN106402382B - The high-speed switch blind plate of anti-ponding corrosion - Google Patents
The high-speed switch blind plate of anti-ponding corrosion Download PDFInfo
- Publication number
- CN106402382B CN106402382B CN201611138151.9A CN201611138151A CN106402382B CN 106402382 B CN106402382 B CN 106402382B CN 201611138151 A CN201611138151 A CN 201611138151A CN 106402382 B CN106402382 B CN 106402382B
- Authority
- CN
- China
- Prior art keywords
- flange
- blind
- retaining ring
- ring
- seat
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a kind of high-speed switch blind plate of anti-ponding corrosion, it is mainly formed by being installed on the support arm of the blind seat of flange, flange blind cover, lifting screw, retaining ring, relieving ring, snap lock rib, pivoted arm.It is structurally characterized in that：The back taper annular groove of equipped flange blind cover is set to form conical surface seal auxiliary structure in the blind seat of flange, retaining ring is embedded in flange blind cover, relieving ring forms blind cover latch-up structure, one group of water seepage hole is set on the blind seat of flange, ensuring under the operating mode of the tight locking of blind cover, making retaining ring, relieving ring large area, we is exposed to outside, impurity cleaning and upkeep operation are convenient to, also can manually prize retaining ring when generation corrosion is dead carries out unlatching operation.The present invention has that structure is simple and direct, production cost is low, easy to install, white-out ponding effect is good, rustproof property is strong, opens operation Portable power saving, reliable good seal performance, the outstanding advantages of working stability long lifespan, there is good application prospect.
Description
Technical field
The present invention relates to blind plate device, belong to the technical field of pressure vessel auxiliary equipment, specifically a kind of anti-product
The high-speed switch blind plate of scale erosion, it is particularly suitable for installing and using in all kinds of pressure vessels and pipes equipment.
Background technology
So-called blind plate device（Also known as manhole device）It is a kind of to be widely used in the auxiliary of each type III pressure vessel and pressure pipeline
Equipment is helped, its main function seeks to be convenient to that pressure vessels and pipes equipment is carried out being turned on or off operating, with profit
Enter in worker and periodic cleaning and maintenance activity carried out inside the container or pipeline of closing, this be effectively safeguard pressure vessel,
A kind of necessary technical measures of the long-term normal operation of pipe-line equipment energy.It is reported that：Existing most commonly used blind plate device
Formed by being fixedly connected with the flange seat being installed on container or pipeline and one group of bolt connection in the blind plate lid of flange seat, right
When container or pipe-line equipment carry out internal overhaul, it is necessary to dismantle one group of bolt after could take out blind plate lid unlatching equipment and made
Industry.But the pressure vessels and pipes equipment that uses of the industry such as existing oil, chemical industry is mostly to run in the wild in open-air atmosphere
Operation, its blind plate device working environment is extremely severe and is chronically at closed mode, one group of connecting bolt of blind plate device
It is the long-term phenomenon for being exposed to and " corrosion is dead " easily occurring in wild environment, worker's one group of connecting bolt of field stripping in the wild
Open the labor intensity of blind plate greatly, operation it is laborious time-consuming, the phenomenon of " can not open ", work are there is also when " corrosion " is serious
People commonly uses percussion mode and carries out dismounting operation, it is easy to causes the accident of injury device.In order to solve this problem, the applicant
It is proposed that a kind of entitled " lock ring type fast opening and closing blind plate device "（CN203656173U）Patented technology, it is mainly by blind
Pipe flange seat, blind plate lid, be open lock ring and be fitted to retaining mechanism composition, by opening lock ring slide fit in blind pipe flange seat with it is blind
In groove between plate lid and promote to tighten up or expand outwardly in hatch lock ring by retaining mechanism and be turned on and off
Operation.It changes the traditional structure by one group of bolted flange seat and blind plate lid, and to be objective, it is to mitigating worker's labor
Fatigue resistance has played certain effect.But we also send out in the R＆D work of long campaigns pressure vessel blindness device product
Existing, this " lock ring type fast opening and closing blind plate device " there are still some in actual motion to use defect, and it is mainly shown as：
Because lock ring is constantly in the closing space that groove is secretly buried between blind pipe flange seat and blind plate lid, open-air atmosphere in the wild
In, it can accumulate rainwater for a long time in this groove for secretly burying structure, also have some small soil impurity and fall into and be piled up in groove
It is interior, i other words, lock ring is that long period of soaking is easy to that electrochemical rust " stuck " occurs in the ponding soil impurity in groove
Phenomenon, when retaining mechanism can not promote lock ring to carry out unlatching operation, worker also can not be empty to being secretly embedded in groove closing in outside
Interior lock ring carries out prizing operation.This is that existing blind plate device also needs to further improved place, and this is also that the present invention is gone back
Continue the technical task solved.
The content of the invention
The purpose of the present invention is intended to overcome deficiencies of the prior art part and propose a kind of anti-ponding corrosion
High-speed switch blind plate.
The purpose of the present invention is achieved by the following technical solution：
A kind of high-speed switch blind plate of anti-ponding corrosion proposed by the present invention, it includes the blind seat of flange, is installed on method tritonope
The support arm of seat, flange blind cover, lifting screw, retaining ring, relieving ring, snap lock rib, the bottom of the lifting screw are set
Convex disk is simultaneously connected to flange blind cover middle position by bottom press-fitting, and the threaded connection of described lifting screw is fitted to support arm
Elevating mechanism is formed in nut, it is characterised in that：The gap segments being adapted with relieving ring are provided with retaining ring, in retaining ring
Both ends lock ear is set, be hinged pivoted arm in the lock ear of retaining ring one end, one end of snap lock rib, which is hinged, is connected to pivoted arm, elasticity
The other end of lock rib, which is hinged, is connected to the lock ear of the retaining ring other end, and snap lock rib forms switching mechanism between pivoted arm and lock ear,
The blind seat of flange inner circle wall set back taper annular groove, described flange blind cover, retaining ring, relieving ring it is cylindrical be arranged to
The inverted cone surface structure that back taper annular groove is adapted, flange blind cover, which is fitted in the back taper annular groove of the blind seat of flange, forms conical surface seal
Pair, retaining ring is in back taper annular groove and is pressed in flange blind cover, and relieving ring is fitted to shape in the gap segments of retaining ring
Into locking safety structure, one group of water seepage hole communicated with back taper annular groove is provided with the blind seat of flange.Its significant structure is special
Putting is：Back taper groove structure is set in the inner circle wall of the blind seat of flange, flange blind cover is fitted in back taper annular groove and formed
Conical surface seal pair, then retaining ring, relieving ring scarf are pressed in formation locking safety structure in flange blind cover.This latch-up structure
The advantages of design is：Can under the operating mode for ensuring tightly to lock flange blind cover, make retaining ring and relieving ring large area we
Outside being exposed to, particularly convenient in carrying out cleaning operation to falling into the impurity in retaining ring and relieving ring, even in occurring, " corrosion is solid
When extremely " causing switching mechanism can not promote retaining ring unlatching operation, operator also can prize retaining ring outside and be opened
Open operation.The discharge structure of one group of water seepage hole is particularly set on the blind seat of flange, the rain that it will can be flowed into back taper annular groove
Water in time go out by white-out.This water seepage hole structure design can thoroughly avoid forming seeping phenomenon in back taper annular groove, and it is right
Prevent flange blind cover, retaining ring and relieving ring from " corrosion is stuck " phenomenon occurs there is obviously technique effect.
Furthermore, the present invention also has following technical characteristic：
The cone angle control of the back taper annular groove of the blind seat of flange is 35 ° -45 °.This optimal control back taper annular groove cone angle
Structure design, the locking performance of conical surface seal performance and retaining ring to improving flange blind cover all has certain technology effect
Fruit, it is also particularly convenient in carrying out unlatching operation to flange blind cover.
The central angle β controls of the gap segments of retaining ring are 10 ° -20 °, the arc length of relieving ring and the gap segments arc of retaining ring
Length is identical, and the shape of cross section of relieving ring is identical with the shape of cross section of retaining ring.This optimal control retaining ring gap segments
Central angle structure design, there is certain technique effect to the locking safety performance for improving relieving ring.
Lip-type packing is fitted with the conical seal (contact) face opening position of flange blind cover and the blind seat of flange.This structure design pair
The sealing property for further improving flange blind cover also has certain effect.
The water seepage hole inner orifice of the blind seat of flange is arranged at the press-assembling surface opening position of retaining ring and flange blind cover.It is this to infiltration
The optimization design structure of hole inner orifice position can be obviously improved water drainage effect, and it is to preventing flange blind cover, retaining ring and insurance
Corrosion phenomena occurs for ring and then extension working life has certain effect.
Described relieving ring is fixedly connected by safe stud and is installed in flange blind cover.It can effectively prevent relieving ring in work
Loose or dislocation phenomenon occurs during work, has certain effect to the stable locking performance for maintaining relieving ring.
Positioning stud is fixedly mounted positioned at the lock ear two side ends for being hinged snap lock rib in flange blind cover.This structure is set
Meter is that the lock ear of retaining ring one end is positioned by positioning stud, can effectively prevent retaining ring when expanding or tightening up
Rotation displacement, to ensuring that switching mechanism normal operation has certain effect.
One group of pressure ring buckle is installed with by bridge screw in flange blind cover.This structure design can effectively prevent from locking
The accident surprisingly ejected occurs for tight ring, to ensuring that equipment safety operation tool has certain effect.
The present invention compared with the existing technology has the following advantages that：
The present invention has initiated a kind of high-speed switch blind plate of the anti-ponding corrosion of brand new, and it is structurally characterized in that：1.
The back taper annular groove of an equipped flange blind cover is set to form " conical surface seal auxiliary structure " on the inner circle wall of the blind seat of flange, in method
Tritonope covers and is embedded in retaining ring again, relieving ring forms " blind cover latch-up structure ".It can under the working condition for ensuring tightly to lock,
Making retaining ring, relieving ring large area, we is exposed to outside, is convenient to carry out impurity cleaning and upkeep operation to retaining ring and relieving ring, i.e.,
Make also can manually prize retaining ring when " corrosion is dead " occurs carries out unlatching operation.2. it sets one group to ooze on the blind seat of flange
Outlet hole structure, it can go out the timely white-out of ponding in back taper annular groove, can thoroughly avoid forming product in back taper annular groove
Water, to preventing " corrosion is stuck " phenomenon, extension device working life has obvious technique effect.Show by probation：This
Invention is really with structure novel in design is simple and direct, manufacturing cost is low, easy to install, white-out ponding effect is good, antirust
Corrosion can strong, unlatching operation Portable power saving, reliable good seal performance, the outstanding advantages of working stability long lifespan.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention, and also make an abstract accompanying drawing.
Fig. 2 is Fig. 1 A-A views, shows the structural representation of the switching mechanism of the present invention.
Fig. 3 is Fig. 2 B-B revolved views（Amplification）, show handle being plugged in the hole of pivoted arm and retaining ring expanded
The operation chart opened or tightened up.
Fig. 4 is the structure chart of the retaining ring of the present invention, is illustrated in retaining ring and sets gap segments and set at retaining ring both ends
Put the structural representation of lock ear.
Fig. 5 is Fig. 4 D-D views, shows the cross-sectional structure schematic diagram of retaining ring.
Fig. 6 is the structure chart of the relieving ring of the present invention（Amplification）, it is illustrated in the structural representation that insurance ear is set on relieving ring
Figure.
Fig. 7 is Fig. 6 E-E views, shows the cross-sectional structure schematic diagram of relieving ring.
Fig. 8 is Fig. 2 C-C views（Amplification）, it is illustrated in the structural representation that pressure ring buckle is fixedly mounted in flange blind cover
Figure.
Fig. 9 is Fig. 1 I Local map（Amplification）, displaying retaining ring is in the back taper annular groove of the blind seat of flange and is pressed
In the structural representation that closing lock-out state is in flange blind cover.
Figure 10 is Fig. 1 I local another enlarged drawing, and displaying retaining ring exits the structural representation of back taper annular groove.
Figure 11 is Fig. 1 I local another enlarged drawing, and the inner circle wall for being illustrated in the blind seat of flange sets the knot of back taper annular groove
Structure schematic diagram.
Description of symbols in accompanying drawing：
1 is handwheel, and 2 be nut, and 3 be lifting screw, and 4 be convex disk, and 5 be safe stud, and 6 be relieving ring, and 7 be method tritonope
Seat, 8 be water seepage hole, and 9 be lip-type packing, and 10 be flange blind cover, and 11 be locknut, and 12 be bottom, and 13 be gland bolt, 14
For retaining ring, 15 be bearing, and 16 be bearing of picking up the ears, and 17 be support arm, and 18 be pressure ring buckle, and 19 be handle, and 20 be lock ear, 21
It is pivoted arm for upper pin, 22,23 be middle pin, and 24 be positioning stud, and 25 be insurance ear, and 26 be lower pin, and 27 be snap lock rib,
28 be gap segments, and 29 be bridge screw, and 30 be back taper annular groove.
Embodiment
Embodiments of the invention are further illustrated below in conjunction with the accompanying drawings：
A kind of high-speed switch blind plate of anti-ponding corrosion proposed by the present invention, it mainly by the blind seat 7 of flange, be installed on flange
The support arm 17 of blind seat 7, flange blind cover 10, lifting screw 3, retaining ring 14, relieving ring 6, snap lock rib 27, the structure of pivoted arm 22
Into.Described support arm 17 is installed on the picking up the ears on bearing 16 of the blind side of seat 7 of flange by the tightening of locknut 11, is shaken in supporting
Bearing 15 is fitted with the rotating shaft of arm 17, it can be greatly enhanced the flexible performance of rotation of support arm 17.In lifting screw 3
Handwheel 1 is installed on top, convex disk 4 is provided with the bottom of lifting screw 3, the bottom 12 for being threaded onto lifting screw 3 is press-fitted in convex disk 4
Middle position upper and that flange blind cover 10 is fixedly connected on by gland bolt 13, the threaded connection of described lifting screw 3 are fitted to
" blind cover elevating mechanism " is formed in the nut 2 of support arm 17, the breach being adapted with relieving ring 6 is provided with retaining ring 14
Section 28, can be 15 by the central angle β optimal controls of the gap segments 28 of retaining ring 14, and make relieving ring 6 when actual production manufactures
Arc length it is identical with the arc length holding of gap segments 28 of retaining ring 14；Make the transversal of the shape of cross section of relieving ring 6 and retaining ring 14
Face shape keeps identical.Lock ear 20 is respectively arranged with the both ends of retaining ring 14, the lock ear 20 of the one end of retaining ring 14 is by upper pin
21, which are hinged, is connected to one end of pivoted arm 22, and two side positions positioned at the other end lock ear 20 of retaining ring 14 in flange blind cover 10 fix peace
Equipped with positioning stud 24, you can one end of retaining ring 14 is positioned.Snap lock rib 27 is respectively by middle pin 23, lower pin 26
Hinge is connected to composition " switching mechanism " between the other end of pivoted arm 22 and the lock ear 20 of the other end of retaining ring 14；Snap lock rib
One end is hinged and is connected to pivoted arm, and the other end of snap lock rib, which is hinged, is connected to the lock ear of the retaining ring other end, snap lock rib pivoted arm with
Switching mechanism is formed between lock ear.It should be noted that：The blind seat 7 of described flange be fixedly connected be installed on pressure vessel or
Circular open part on pressure pipeline, the inner circle wall of the blind seat 7 of flange is provided with back taper annular groove 30, in actual production system
When making, can by the cone angle optimal control of back taper annular groove 30 be 40 °, by flange blind cover 10, retaining ring 14, relieving ring 6 it is cylindrical
It is arranged to the inverted cone surface structure being adapted with back taper annular groove 30.One group and back taper annular groove 30 are provided with the blind seat 7 of flange
The water seepage hole 8 communicated, can optimization design be further：The inner orifice of water seepage hole 8 is arranged at corresponding retaining ring 14 and method tritonope
The opening position of the press-assembling surface of lid 10, there is good water drainage effect in actual motion.
It is to be closed as follows, open operation：
When needing to close, rotating support rocking arm 17 moves to flange blind cover 10 position directly above of the blind seat 7 of flange first,
Handwheel 1 is slowly rotated again, you can flange blind cover 10 is slowly declined to the back taper for being put into the blind seat 7 of flange by " blind cover elevating mechanism "
" conical surface seal auxiliary structure " is formed in shape annular groove 30, is equipped with the conical seal (contact) face opening position of the seat 7 blind with flange of flange blind cover 10
Lip-type packing 9, it can further improve the sealing property of flange blind cover 10.Meanwhile handle 19 is inserted in the hole of pivoted arm 22, edge
Retaining ring 14 can be tightened up by " switching mechanism " by rotating in an anti-clockwise direction handle 19, and retaining ring 14 is flush-mounted in into back taper annular groove
After 30 internal pressures are loaded in flange blind cover 10, then it are rotated in the clockwise direction handle 19 and expand retaining ring 14 slightly, you can easily
Relieving ring 6 is fitted in the gap segments 28 of retaining ring 14 and forms blind cover locking safety structure.After taking out handle 19, retaining ring 14
Can be under the effect of the elastic-restoring force of snap lock rib 27 by the both ends banding of relieving ring 6.Finally, with safe stud 5 by the guarantor of relieving ring 6
Dangerous ear 25 is fixedly connected in flange blind cover 10, then one group of pressure ring buckle 18 is fixedly installed in into flange blind cover with bridge screw 29
On 10, you can firmly push down retaining ring 14 by one group of pressure ring buckle 18.So far, that is, shutoff operation is completed.
When needing to open, one group of pressure ring buckle 18 and safe stud 5 are dismantled first, handle 19 is inserted in the hole of pivoted arm 22
Interior, retaining ring 14 can be expanded by " switching mechanism " by being rotated in the clockwise direction handle 19, it is convenient to relieving ring 6 is taken out,
After rotational handle 19 tightens up retaining ring 14 in the counterclockwise direction again, you can lock is taken out out of the blind seat 7 of flange back taper annular groove 30
Tight ring 14.Finally, then handwheel 1 is rotated backward, you can flange blind cover 10 is lifted up by " blind cover elevating mechanism ", by method tritonope
After the blind seat 7 of flange is moved away from lid 10, it is rotated further by support arm 17 and flange blind cover 10 is moved into the blind outside of seat 7 of flange.So far, i.e.,
Complete shutoff operation.
Claims (8)
1. a kind of high-speed switch blind plate of anti-ponding corrosion, it includes the blind seat of flange（7）, be installed on the blind seat of flange（7）Supporting
Rocking arm（17）, flange blind cover（10）, lifting screw（3）, retaining ring（14）, relieving ring（6）, snap lock rib（27）, the lifting
Screw rod（3）Bottom convex disk is set（4）And by bottom（12）Press-fitting is connected to flange blind cover（10）Middle position, described lifting
Screw rod（3）Threaded connection is fitted to support arm（17）Nut（2）Interior formation elevating mechanism, it is characterised in that：In retaining ring
（14）On be provided with and relieving ring（6）The gap segments being adapted（28）, in retaining ring（14）Both ends set lock ear（20）, locking
Tight ring（14）The lock ear of one end（20）On be hinged pivoted arm（22）, snap lock rib（27）One end be hinged be connected to pivoted arm（22）, bullet
Property lock rib（27）The other end be hinged be connected to retaining ring（14）The lock ear of the other end（20）, snap lock rib（27）In pivoted arm（22）With
Lock ear（20）Between form switching mechanism, in the blind seat of flange（7）Inner circle wall set back taper annular groove（30）, described flange
Blind cover（10）, retaining ring（14）, relieving ring（6）Cylindrical be arranged to and back taper annular groove（30）The inverted cone surface structure being adapted,
Flange blind cover（10）It is fitted to the blind seat of flange（7）Back taper annular groove（30）Interior formation conical surface seal pair, retaining ring（14）Setting-in
In back taper annular groove（30）It is interior and be pressed in flange blind cover（10）On, relieving ring（6）It is fitted to retaining ring（14）Gap segments
（28）It is interior to form locking safety structure, in the blind seat of flange（7）On be provided with one group and back taper annular groove（30）The water seepage hole communicated
（8）.
2. the high-speed switch blind plate of anti-ponding corrosion according to claim 1, it is characterised in that：The blind seat of flange（7）Fall
Taper annular groove（30）Cone angle control be 35 ° -45 °.
3. the high-speed switch blind plate of anti-ponding corrosion according to claim 1 or 2, it is characterised in that：Retaining ring（14）'s
Gap segments（28）Central angle β control be 10 ° -20 °, relieving ring（6）Arc length and retaining ring（14）Gap segments（28）Arc length
It is identical, relieving ring（6）Shape of cross section and retaining ring（14）Shape of cross section it is identical.
4. the high-speed switch blind plate of anti-ponding corrosion according to claim 1 or 2, it is characterised in that：In flange blind cover
（10）With the blind seat of flange（7）Conical seal (contact) face opening position be fitted with lip-type packing（9）.
5. the high-speed switch blind plate of anti-ponding corrosion according to claim 1 or 2, it is characterised in that：The blind seat of flange（7）'s
Water seepage hole（8）Inner orifice is arranged at retaining ring（14）With flange blind cover（10）Press-assembling surface opening position.
6. the high-speed switch blind plate of anti-ponding corrosion according to claim 1 or 2, it is characterised in that：Described relieving ring
（6）By safe stud（5）It is fixedly connected and is installed on flange blind cover（10）On.
7. the high-speed switch blind plate of anti-ponding corrosion according to claim 1 or 2, it is characterised in that：In flange blind cover
（10）Above it is located at and is hinged snap lock rib（27）Lock ear（20）Positioning stud is fixedly mounted in two side ends（24）.
8. the high-speed switch blind plate of anti-ponding corrosion according to claim 1 or 2, it is characterised in that：In flange blind cover
（10）On by bridge screw（29）It is installed with one group of pressure ring buckle（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138151.9A CN106402382B (en) | 2016-12-12 | 2016-12-12 | The high-speed switch blind plate of anti-ponding corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138151.9A CN106402382B (en) | 2016-12-12 | 2016-12-12 | The high-speed switch blind plate of anti-ponding corrosion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106402382A CN106402382A (en) | 2017-02-15 |
| CN106402382B true CN106402382B (en) | 2018-01-23 |
Family
ID=58085320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138151.9A Active CN106402382B (en) | 2016-12-12 | 2016-12-12 | The high-speed switch blind plate of anti-ponding corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106402382B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361373B (en) * | 2018-02-09 | 2019-07-16 | 特瑞斯能源装备股份有限公司 | Vertical fast opening blind promotes pivoted arm composition |
| CN108267054B (en) * | 2018-03-13 | 2023-11-10 | 中国工程物理研究院化工材料研究所 | Explosion container with excellent dynamic sealing performance |
| CN114704646A (en) * | 2022-03-30 | 2022-07-05 | 浙江欧菲石油设备有限公司 | Quick-opening blind plate device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201609610U (en) * | 2010-01-20 | 2010-10-20 | 江苏盛伟过滤设备有限公司 | Quartered ring-type quick-open blind plate |
| CN201757174U (en) * | 2010-05-27 | 2011-03-09 | 沈阳永业实业有限公司 | Locking ring type quick opening blind plate |
| CN103216615B (en) * | 2013-04-17 | 2015-08-05 | 中国石油集团工程设计有限责任公司 | A kind of novel fixation pressure ring type fast-opening blind and method for opening and closing thereof |
| CN203560425U (en) * | 2013-09-06 | 2014-04-23 | 特瑞斯能源装备股份有限公司 | Lock ring type quick open blind plate |
| CN203656173U (en) * | 2013-11-06 | 2014-06-18 | 乐山川天燃气输配设备有限公司 | Lock ring type quick opening and closing blind plate device |
| CN203823046U (en) * | 2014-04-24 | 2014-09-10 | 李柏逸 | Locking-ring quick-opening blind plate |
| CN103912683B (en) * | 2014-04-24 | 2016-03-30 | 李柏逸 | Lock-ring-type fast-opening blind |
| CN206478222U (en) * | 2016-12-12 | 2017-09-08 | 乐山川天燃气输配设备有限公司 | The high-speed switch blind plate of anti-ponding corrosion |
-
2016
- 2016-12-12 CN CN201611138151.9A patent/CN106402382B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106402382A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106402382B (en) | The high-speed switch blind plate of anti-ponding corrosion | |
| CN203656173U (en) | Lock ring type quick opening and closing blind plate device | |
| CN206478222U (en) | The high-speed switch blind plate of anti-ponding corrosion | |
| CN214662077U (en) | Butterfly valve | |
| CN202063455U (en) | Coal bunker dehydration gate | |
| CN206054776U (en) | A kind of on-line cleaning sealing surface flat gate valve | |
| CN208764368U (en) | Upper-mounting type ball valve | |
| CN106337947B (en) | It is a kind of for sewerage without blocking gate valve | |
| CN211624254U (en) | Slag discharge valve | |
| CN207673883U (en) | Any opening degree dark bar soft sealing gate valve with pressure for replacing sealing ring | |
| CN209940421U (en) | Opening device for municipal road well lid | |
| CN201521756U (en) | Plugging device for on-line replacement of first valve of metallurgy gas pipe drainer | |
| CN202392282U (en) | Device capable of realizing detachment-free pollution discharge | |
| CN207064692U (en) | A kind of improved rising stem (RS.) wedge action valve copper sheathing | |
| CN206735063U (en) | A kind of mixing plant cement bin Cang Gai rain-proof structure | |
| CN207073593U (en) | A kind of wear resistance ball valve of good airproof performance | |
| CN202220890U (en) | Pilot operated safety valve with manual opening mechanism | |
| CN215159162U (en) | Manual plug valve for water ash slag material conveying system | |
| CN218625478U (en) | Ash gate valve with packing sealing device | |
| CN213271071U (en) | Anti-leakage valve | |
| CN203202217U (en) | Inlet sealing device of desulfurization wet mill | |
| CN204477346U (en) | Movable sealing pottery blade type gate valve | |
| CN215977158U (en) | Water stopping structure for shaft end of hydraulic dam bottom | |
| CN203499604U (en) | Silt remover for drilling fluid | |
| CN216343980U (en) | Anti-corrosion flow adjusting butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |