CN106402382A - Accumulated water corrosion prevention blind plate capable of being quickly opened and closed - Google Patents
Accumulated water corrosion prevention blind plate capable of being quickly opened and closed Download PDFInfo
- Publication number
- CN106402382A CN106402382A CN201611138151.9A CN201611138151A CN106402382A CN 106402382 A CN106402382 A CN 106402382A CN 201611138151 A CN201611138151 A CN 201611138151A CN 106402382 A CN106402382 A CN 106402382A
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- Prior art keywords
- blind
- flange
- ring
- retaining ring
- seat
- Prior art date
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewage (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses an accumulated water corrosion prevention blind plate capable of being quickly opened and closed. The blind plate mainly comprises a supporting rocker arm, a flange blind cover, a lifting screw, a locking ring, a guard ring, an elastic lock rib and a rotating arm which are mounted on a flange blind seat. The blind plate is structurally characterized in that an inverted cone-shaped annular groove equipped with the flange blind cover is arranged inside the flange blind seat to form a conical surface sealing pair structure; the locking ring and the guard ring are embedded in the flange blind cover to form a blind cover locking structure; a group of water seepage holes are formed in the flange blind seat; and large areas of the locking ring and the guard ring are exposed under the working condition that the blind cover is guaranteed to be tightly locked, so that impurity cleaning and maintenance operation are facilitated, and even though connecting bolts are blocked due to corrosion, the blind plate can be opened through manually levering the locking ring. The blind plate has the prominent advantages that the structure is simple, the production cost is low, the mounting and utilization are convenient, the accumulated water drainage effect is good, the corrosion resistance is high, the opening operation is easy and effort-saving, the operation is reliable, the sealing performance is good, the operation is stable, and the service life is long, and the blind plate has quite 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-long-pending
The high-speed switch blind plate of scale erosion, it is particularly suitable for installing and using on 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
Help equipment, its Main Function seeks to be convenient to pressure vessels and pipes equipment is carried out be turned on or off operating, with profit
In workman enter closing container or pipeline inside carry out periodic cleaning and maintenance activity, this be effectively safeguard pressure vessel,
A kind of necessary technical measures that pipe-line equipment can normally run for a long time.It is reported that：Existing most commonly used blind plate device
By being fixedly connected the flange seat being installed on container or pipeline and one group of bolt connection forms in the blind plate lid of flange seat, right
When container or pipe-line equipment carry out internal overhaul, blind plate lid unlatching equipment could be taken out after needing to dismantle one group of bolt and made
Industry.But, the pressure vessels and pipes equipment that the industry such as existing oil, chemical industry uses is mostly to run in open-air atmosphere in the wild
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 to be exposed to the phenomenon that " corrosion is dead " easily occurs in wild environment for a long time, workman's one group of connecting bolt of field stripping in the wild
The labour intensity of unlatching blind plate is very big, operation is arduously time-consuming, there is also the phenomenon of " cannot open ", work when " corrosion " is serious
People commonly uses percussion mode and carries out dismantling operation it is easy to cause 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, opening lock ring and be fitted to retaining mechanism composition, by opening lock ring slide fit in blind pipe flange seat with 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 by the traditional structure of one group of bolted flange seat and blind plate lid, and to be objective, it is to mitigation workman'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 " yet suffers from some in actual motion and uses defect, and it is mainly shown as：
Because lock ring is open-air atmosphere in the wild in the closing space being constantly in and secretly burying groove between blind pipe flange seat and blind plate lid
In, this interior meeting of groove secretly burying structure accumulates rainwater for a long time, also has some small soil impurity and falls into and be piled up in groove
Interior, i other words, lock ring is that long period of soaking is easy to electrochemical rust " stuck " in the ponding soil impurity in groove
Phenomenon, when retaining mechanism cannot promote lock ring to carry out opening operation, workman also cannot 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 goes back
Continue the technical task solving.
Content of the invention
In place of the purpose of the present invention is intended to overcome deficiencies of the prior art, a kind of anti-ponding corrosion is proposed
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 the blind seat of flange
Support arm, flange blind cover, lifting screw, retaining ring, relieving ring, snap lock rib, the bottom of described lifting screw arranges convex disk
And be press-fitted by bottom and be connected to flange blind cover middle position, the threaded nut being fitted to support arm of described lifting screw
Interior formation elevating mechanism it is characterised in that：The gap segments being adapted with relieving ring are provided with retaining ring, the two of retaining ring
End setting lock ear, is hinged pivoted arm in the lock ear of retaining ring one end, and the two ends of snap lock rib are hinged and are connected to pivoted arm and retaining ring
Constitute switching mechanism between the lock ear of the other end, back taper annular groove, described method tritonope are set in the inner circle wall of flange blind seat
Lid, retaining ring, the cylindrical inverted cone surface structure being arranged to be adapted with back taper annular groove of relieving ring, flange blind cover is fitted to flange
Form conical surface seal pair, retaining ring is flush-mounted in back taper annular groove and press-fits in flange blind cover in the back taper annular groove of blind seat,
Relieving ring is fitted in the gap segments of retaining ring and forms locking safety structure, is provided with one group and back taper shape ring on the blind seat of flange
The water seepage hole that groove communicates.It is significantly structurally characterized in that：Back taper groove structure is set in the inner circle wall of flange blind seat, by method
Tritonope lid is fitted in back taper annular groove and forms conical surface seal pair, then retaining ring, relieving ring scarf are press-fited in flange blind cover
Form locking safety structure.The advantage of this latch-up structure design is：Work that flange blind cover is tightly locked can guaranteed
Under condition, make retaining ring and relieving ring large area we be exposed to outer, particularly convenient in entering to the impurity fallen in retaining ring and relieving ring
Row cleaning operation, even if when there is " corrosion is dead " and leading to switching mechanism that retaining ring cannot be promoted to open operation, operative employee
People also can prize retaining ring outside and carry out opening operation.The draining knot of one group of water seepage hole is particularly arranged on the blind seat of flange
Structure, it can white-out be gone out in time by the rainwater flowing in back taper annular groove.This water seepage hole structure design can thoroughly avoid
Form seeping phenomenon in back taper annular groove, it occurs " corrosion is stuck " phenomenon tool to preventing flange blind cover, retaining ring and relieving ring
There is obviously technique effect.
Furthermore, the present invention also has following technical characteristic：
The cone angle of the back taper annular groove of the blind seat of flange is controlled to 35 ° 45 °.The knot of this optimal control back taper annular groove cone angle
Structure designs, and all has certain technique effect to the locking performance of the conical surface seal performance and retaining ring that improve flange blind cover, also
Particularly convenient in flange blind cover is carried out open operation.
The center of circle angle beta of the gap segments of retaining ring is controlled to 10 ° 20 °, the gap segments arc of the arc length of relieving ring and 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, has certain technique effect to the locking safety performance improving relieving ring.
It is fitted with lip-type packing at the conical seal (contact) face position with the blind seat of flange for the flange blind cover.This structure design pair
The sealing property improving flange blind cover further also has certain effect.
The water seepage hole inner orifice of the blind seat of flange is arranged at retaining ring and the press-assembling surface position of flange blind cover.This to infiltration
The optimization design structure of in the hole orifice position can be obviously improved water drainage effect, and it is to preventing flange blind cover, retaining ring and insurance
Corrosion phenomena ring occurs and then prolongation 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
There is loose or dislocation phenomenon during work, have certain effect to the stable locking performance maintaining relieving ring.
The lock ear two side ends fixed installation positioning stud being hinged snap lock rib is located on flange blind cover.This structure sets
Meter is by positioning stud, the lock ear of retaining ring one end to be positioned, and occurs when can effectively prevent retaining ring in expansion or tighten up
Rotation displacement, to guaranteeing that switching mechanism normal operation has certain effect.
Flange blind cover is installed with one group of pressure ring buckle by bridge screw.This structure design can effectively prevent from locking
There is the unexpected accident ejecting in tight ring, have certain effect to guaranteeing that equipment safety operation has.
The present invention compared with the existing technology has the advantage 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. in flange
The back taper annular groove arranging an equipped flange blind cover on the inner circle wall of blind seat forms " conical surface seal auxiliary structure ", in method tritonope
Cover and be embedded in retaining ring again, relieving ring forms " blind cover latch-up structure ".It can make lock under the working condition guaranteeing tightly to lock
Tight ring, relieving ring large area we be exposed to outer, be convenient to carry out impurity cleaning and upkeep operation to retaining ring and relieving ring, though
Also can manually prize retaining ring during generation " corrosion is dead " to carry out opening operation.2. it arranges one group of water seepage hole on the blind seat of flange
Structure, timely for the ponding in back taper annular groove white-out can be gone out by it, can thoroughly avoid being formed ponding in back taper annular groove, right
Prevent " corrosion is stuck " phenomenon, extension device working life has obvious technique effect.Show through on probation：The present invention is true
Have in fact that structure novel in design is simple and direct, manufacturing cost is low, easy to install, white-out ponding effect is good, rustproof property
By force, operation Portable power saving, reliable good seal performance, the outstanding advantages of working stability life-span length are opened.
Brief description
Fig. 1 is the structural representation of the present invention, and also make an abstract accompanying drawing.
Fig. 2 is the A A view of Fig. 1, shows the structural representation of the switching mechanism of the present invention.
Fig. 3 is the B B revolved view of Fig. 2（Amplify）, show that the in the hole that handle is plugged in pivoted arm expands to retaining ring
The operation chart opened or tighten up.
Fig. 4 is the structure chart of the retaining ring of the present invention, is illustrated in retaining ring and arranges gap segments and set at retaining ring two ends
Put the structural representation of lock ear.
Fig. 5 is the D D view of Fig. 4, shows the cross-sectional structure schematic diagram of retaining ring.
Fig. 6 is the structure chart of the relieving ring of the present invention（Amplify）, it is illustrated in the structural representation of setting insurance ear on relieving ring
Figure.
Fig. 7 is the E E view of Fig. 6, shows the cross-sectional structure schematic diagram of relieving ring.
Fig. 8 is the C C view of Fig. 2（Amplify）, it is illustrated in the structural representation that pressure ring buckle is fixedly mounted on flange blind cover
Figure.
Fig. 9 is I Local map of Fig. 1（Amplify）, show that retaining ring is flush-mounted in the back taper annular groove of the blind seat of flange and press-fits
The structural representation closing lock-out state is on flange blind cover.
Figure 10 is the another enlarged drawing in I local of Fig. 1, shows that retaining ring exits the structural representation of back taper annular groove.
Figure 11 is the another enlarged drawing in I local of Fig. 1, and the inner circle wall being illustrated in the blind seat of flange arranges the knot of back taper annular groove
Structure schematic diagram.
Description of symbols in accompanying drawing：
1 is handwheel, and 2 is nut, and 3 is lifting screw, and 4 is convex disk, and 5 is safe stud, and 6 is relieving ring, and 7 is the blind seat of flange, and 8 are
Water seepage hole, 9 is lip-type packing, and 10 is flange blind cover, and 11 is locknut, and 12 is bottom, and 13 is gland bolt, and 14 is locking
Ring, 15 is bearing, and 16 is bearing of picking up the ears, and 17 is support arm, and 18 is pressure ring buckle, and 19 is handle, and 20 is lock ear, and 21 is upper prop
Pin, 22 is pivoted arm, and 23 is middle pin, and 24 is positioning stud, and 25 is insurance ear, and 26 is lower pin, and 27 is snap lock rib, and 28 is scarce
Mouth section, 29 is bridge screw, and 30 is back taper annular groove.
Specific embodiment
Further illustrate embodiments of the invention 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 of flange 7, be installed on the blind seat of flange
7 support arm 17, flange blind cover 10, lifting screw 3, retaining ring 14, relieving ring 6, snap lock rib 27, pivoted arm 22 are constituted.Institute
The support arm 17 stated is picked up the ears on bearing 16 by what locknut 11 tightening was installed on the blind seat of flange 7 side, in support arm 17
Rotating shaft on be fitted with bearing 15, it can be greatly enhanced the flexible performance of rotation of support arm 17.Top in lifting screw 3
Handwheel 1 is installed, the bottom of lifting screw 3 is provided with convex disk 4, the bottom 12 being threaded onto lifting screw 3 is press-fitted on convex disk 4 simultaneously
It is fixedly connected on the middle position of flange blind cover 10 by gland bolt 13, described lifting screw 3 is threaded to be fitted to supporting
Form " blind cover elevating mechanism " in the nut 2 of rocking arm 17, the gap segments being adapted with relieving ring 6 are provided with retaining ring 14
28, when actual production manufactures, the center of circle angle beta optimal control of the gap segments 28 of retaining ring 14 can be 15, and make relieving ring 6
Arc length is identical with the gap segments 28 arc length holding of retaining ring 14；Make the shape of cross section of relieving ring 6 and the cross section of retaining ring 14
Shape keeps identical.It is respectively arranged with lock ear 20 at the two ends of retaining ring 14, the lock ear 20 of retaining ring 14 one end is by upper pin 21
It is hinged and is connected to one end of pivoted arm 22, two side position fixed installations of retaining ring 14 other end lock ear 20 are located on flange blind cover 10
There is positioning stud 24, you can one end of retaining ring 14 is positioned.Snap lock rib 27 is cut with scissors by middle pin 23, lower pin 26 respectively
It is connected to composition " switching mechanism " between the other end of pivoted arm 22 and the lock ear 20 of retaining ring 14 other end.It should be noted that：
The blind seat of described flange 7 is to be fixedly connected the circular open part being installed on pressure vessel or pressure pipeline, in method tritonope
The inner circle wall of seat 7 is provided with back taper annular groove 30, when actual production manufactures, can be by the cone angle optimization of back taper annular groove 30
Be controlled to 40 °, by flange blind cover 10, retaining ring 14, relieving ring 6 the cylindrical back taper being arranged to be adapted with back taper annular groove 30
Face structure.One group of water seepage hole being communicated with back taper annular groove 30 8 is provided with the blind seat of flange 7, can optimization design be further：
The inner orifice of water seepage hole 8 is arranged at the position that corresponding retaining ring 14 is with flange blind cover 10 press-assembling surface, has in actual motion
Water drainage effect well.
It is to carry out as follows closing, open operation：
When needing to close, flange blind cover 10 is moved to the position directly above of the blind seat of flange 7 by rotating support rocking arm 17 first, then delays
Slow rotation handwheel 1, you can flange blind cover 10 is slowly declined by the back taper shape ring putting into the blind seat of flange 7 by " blind cover elevating mechanism "
Form " conical surface seal auxiliary structure ", equipped lip at the conical seal (contact) face position with the blind seat of flange 7 for the flange blind cover 10 in groove 30
Sealing ring 9, can further improve the sealing property of flange blind cover 10.Meanwhile, handle 19 is inserted in the in the hole of pivoted arm 22, along the inverse time
Pin direction turning handle 19 can tighten up retaining ring 14 by " switching mechanism ", and retaining ring 14 is flush-mounted in back taper annular groove 30
Press-fit after in the flange blind cover 10, then be rotated in the clockwise direction handle 19 and expand slightly retaining ring 14, you can easily will protect
Dangerous 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 meeting exists
By relieving ring 6 two ends banding under the effect of snap lock rib 27 elastic-restoring force.Finally, with safe stud 5 by the insurance ear of relieving ring 6
25 are fixedly connected in flange blind cover 10, then with bridge screw 29, one group of pressure ring buckle 18 are fixedly installed in flange blind cover 10
On, you can retaining ring 14 is firmly pushed down by one group of pressure ring buckle 18.So far, that is, complete shutoff operation.
When needing to open, dismantle one group of pressure ring buckle 18 and safe stud 5 first, handle 19 is inserted in the hole of pivoted arm 22
Interior, being rotated in the clockwise direction handle 19 can expand retaining ring 14 by " switching mechanism " it is convenient to take out relieving ring 6,
After retaining ring 14 tightened up by turning handle 19 in the counterclockwise direction again, you can take out lock in the back taper annular groove 30 of the blind seat of flange 7
Tight ring 14.Finally, then rotate backward handwheel 1, you can flange blind cover 10 is lifted up by " blind cover elevating mechanism ", by method tritonope
After moving away the blind seat of flange 7 on lid 10, it is rotated further by support arm 17 and moves to flange blind cover 10 outside the blind seat of flange 7.So far, that is,
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）, described lifting
Screw rod（3）Bottom arrange convex disk（4）And by bottom（12）It is press-fitted and be connected to flange blind cover（10）Middle position, described lifting
Screw rod（3）Threaded it 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）Two ends setting lock ear（20）, in lock
Tight ring（14）The lock ear of one end（20）On be hinged pivoted arm（22）, snap lock rib（27）Two ends be hinged be connected to pivoted arm（22）With lock
Tight ring（14）The lock ear of the other end（20）Between constitute switching mechanism, in the blind seat of flange（7）Inner circle wall setting back taper shape ring
Groove（30）, described flange blind cover（10）, retaining ring（14）, relieving ring（6）Cylindrical be arranged to and back taper annular groove（30）Phase
The inverted cone surface structure of adaptation, 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）It is flush-mounted in back taper annular groove（30）Interior and press-fit in flange blind cover（10）On, relieving ring（6）It is fitted to locking
Ring（14）Gap segments（28）Interior formation locks safety structure, in the blind seat of flange（7）On be provided with one group with back taper annular groove
（30）The water seepage hole communicating（8）.
2. anti-ponding corrosion according to claim 1 high-speed switch blind plate it is characterised in that：The blind seat of flange（7）Fall
Taper annular groove（30）Cone angle（α）It is controlled to 35 ° 45 °.
3. anti-ponding corrosion according to claim 1 and 2 high-speed switch blind plate it is characterised in that：Retaining ring（14）'s
Gap segments（28）Central angle（β）It is controlled to 10 ° 20 °, relieving ring（6）Arc length and retaining ring（14）Gap segments（28）Arc
Long identical, relieving ring（6）Shape of cross section and retaining ring（14）Shape of cross section identical.
4. anti-ponding corrosion according to claim 1 and 2 high-speed switch blind plate it is characterised in that：In flange blind cover
（10）The blind seat with flange（7）Conical seal (contact) face position at be fitted with lip-type packing（9）.
5. anti-ponding corrosion according to claim 1 and 2 high-speed switch blind plate 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 position at.
6. anti-ponding corrosion according to claim 1 and 2 high-speed switch blind plate it is characterised in that：Described relieving ring
（6）By safe stud（5）It is fixedly connected and be installed on flange blind cover（10）On.
7. anti-ponding corrosion according to claim 1 and 2 high-speed switch blind plate it is characterised in that：In flange blind cover
（10）Upper being located at is hinged snap lock rib（27）Lock ear（20）Two side ends fixedly mount positioning stud（24）.
8. anti-ponding corrosion according to claim 1 and 2 high-speed switch blind plate 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 true CN106402382A (en) | 2017-02-15 |
| CN106402382B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267054A (en) * | 2018-03-13 | 2018-07-10 | 中国工程物理研究院化工材料研究所 | A kind of excellent explosive container of dynamic sealing performance |
| CN108361373A (en) * | 2018-02-09 | 2018-08-03 | 特瑞斯能源装备股份有限公司 | Vertical fast opening blind promotes pivoted arm composition |
| 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 |
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| 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 |
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| CN103216615A (en) * | 2013-04-17 | 2013-07-24 | 中国石油集团工程设计有限责任公司 | Novel fixed pressure ring type fast opening blind plate and opening and closing method of novel fixed pressure ring type fast opening blind plate |
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| CN103912683A (en) * | 2014-04-24 | 2014-07-09 | 李柏逸 | Lock ring type fast-opening blind plate |
| CN203823046U (en) * | 2014-04-24 | 2014-09-10 | 李柏逸 | Locking-ring quick-opening blind plate |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN103216615A (en) * | 2013-04-17 | 2013-07-24 | 中国石油集团工程设计有限责任公司 | Novel fixed pressure ring type fast opening blind plate and opening and closing method of novel fixed pressure ring type fast opening blind plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361373A (en) * | 2018-02-09 | 2018-08-03 | 特瑞斯能源装备股份有限公司 | Vertical fast opening blind promotes pivoted arm composition |
| 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 |
| CN108267054A (en) * | 2018-03-13 | 2018-07-10 | 中国工程物理研究院化工材料研究所 | A kind of excellent explosive container of dynamic sealing performance |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106402382B (en) | 2018-01-23 |
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