CN104089009B - A kind of enabling safeties for pressure vessel - Google Patents
A kind of enabling safeties for pressure vessel Download PDFInfo
- Publication number
- CN104089009B CN104089009B CN201410319301.0A CN201410319301A CN104089009B CN 104089009 B CN104089009 B CN 104089009B CN 201410319301 A CN201410319301 A CN 201410319301A CN 104089009 B CN104089009 B CN 104089009B
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- cover plate
- door
- door cover
- block
- assembly
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Abstract
The present invention discloses a kind of enabling safeties for pressure vessel, including door cover plate assembly, seat assembly, rotating assembly, connecting plate, spacing handle, door open limit block and rotary shaft rack；Projection in door cover plate and sealing block, can closely cooperate with the horizontally U-shaped rail groove in seat assembly, door cover plate assembly can Unscrew around the shaft, reach door opening state；Limiting plate in door cover plate assembly coordinates the first safeties constituting enabling with spacing handle；Slide block in door cover plate assembly constitutes second safeties with door open limit block；The enabling safeties of the present invention, can limit door cover plate can only open smoothly by opening twice safeties side, and at the complete removal of air pressure opened before door cover plate in pressure vessel, thus ensured the life security of pressure easy opening door operation person.
Description
Technical field
The present invention relates to pressure vessels for the chemical industry technical field, be specifically related to a kind of enabling for pressure vessel and insure dress
Put.
Background technology
Pressure vessel is as a kind of special equipment, and the safety guarantee in its operating process is a particularly important problem.
Owing to the internal pressure of pressure vessel is more than (being the most even far longer than) atmospheric pressure, thus during opening pressure vessel,
Sometimes due to human negligence or internal pressure do not have complete removal, and during opening pressure vessel, security incident occurs.
In order to pressure container opens the safety problem in operating process, need to design a kind of pressure with multiple insurance function and hold
Device door opener, it is ensured that even if in the case of human negligence or internal pressure unload the most completely, it is also possible to ensure the life of operator
Life safety.
Summary of the invention
In order to solve the problems referred to above, it is proposed that a kind of enabling safeties for pressure vessel, it is provided that multiple enabling
Safety measures, eliminates the unsafe factor in the easy door opening process of pressure, the peace of operator during guarantee pressure vessel enabling
Entirely, concrete technical scheme includes one of at least following scheme.
A kind of enabling safeties for pressure vessel, including door cover plate assembly, seat assembly, rotating assembly, connection
Plate, spacing handle and rotary shaft rack；Door cover plate in door cover plate assembly can rotate around gland, solid on the door cover plate of door cover plate assembly
Surely having the hand handle for promoting door cover plate assembly to rotate, spacing handle is arranged on seat assembly, door cover plate is also equipped with spacing
Plate for coordinating the restriction realizing rotating door cover plate with spacing handle, and door cover plate edge is evenly distributed with several projections, often
It is fixed with sealing block on individual projection；Door cover plate assembly is fixed with connecting plate by gland, and the other end of connecting plate is fixed on rotating shaft
On, rotating shaft can holder pivots around the shaft, and rotary shaft rack is fixedly mounted on seat assembly；Door cover plate is door closure when gland rotates
Plate circumference can slide in the circular orbit of horizontally U-shaped rail groove in seat assembly, and the cross section of horizontally U-shaped circular orbit is
Bottom U-shaped in the horizontal direction, the thickness of the projection in door cover plate assembly and sealing block is more than the width of horizontally U-shaped rail groove,
Door cover plate assembly is fully sealed with seat assembly；By handle rotation door cover plate assembly, and convex by door cover plate assembly
When block rotates to the groove location in seat assembly, projection upwards can skid off along groove, now can open door cover plate assembly, thus
Reach door opening state.
Further, spacing handle coordinates with the limiting plate in door cover plate assembly, it is achieved first heavily insures；Spacing handle bag
Containing spacing handle, dish type cylinder and arc breach thereof, spacing handle is connected with dish type cylinder, and dish type cylinder can be at spacing handle
Drive lower rotation；The i.e. dish when the outer arcuate of dish type cylinder forwards the position coordinated with the arc notch of the limiting plate on door cover plate to
The outer arcuate part of shape cylinder is positioned in the arc notch of limiting plate, makes door cover plate assembly to rotate thus prevents door cover plate pine
Move and security incident occurs；When spacing handle rotate arc breach is coordinated with limiting plate time i.e. dish type cylinder outer arcuate
Be not positioned in the arc notch of limiting plate, then door cover plate assembly can rotate around gland.
Further, spacing arm pivot post can also connect the purge valve door switch of pressure vessel, row pressure valve one end with
Atmosphere, one end UNICOM internal with pressure vessel, the purge valve closing presure container when spacing rotatable handle to spacing state
Internal and outside atmosphere is isolated, and when spacing rotatable handle to spacing releasing state, purge valve opens pressure vessel and outside atmosphere
UNICOM's pressure vessel row pressure, thus strengthen first insurance function.
Further, the excircle side of seat assembly is additionally provided with door open limit block, and described on the handle is further fixed on slide block；
Slide block constitutes second with door open limit block and heavily insures；When door cover plate assembly turns to the position of door open limit block always, sliding
Block cannot be rotated further by the prevention of lower block；If needing to continue to open cover plate, then need hand upwards lifting so that
Slide block through the passage the lower block in door open limit block and upper block, shape between door cover plate and seat ring during lifting
Space is become the air pressure in pressure vessel to be declined rapidly so that pressure easily open the door safety；The L-type design of upper block ensure that
Pressure vessel gate cover plate stress-relief process can not throw open and clamshell doors operator causes danger；If continuing to open the door, then should
Hand handle is pressed downward against by this so that slide block is through the space, oblique angle upper block and lower block so that the projection pair in door cover plate
Groove in quasi-seat ring, so that pressure vessel smooth opening door closure after complete release.
Further, the slide block of door cover plate assembly is limited by spacing handle and cannot be crossed spacing handle and clockwise
Open.
Further, the length of the sealing block in door cover plate assembly is less than the length of projection, and is fixed on by sealing block convex
One section of block；And meet: when slide block lower block block edge in encountering door open limit block, sealing block still level of compression is U-shaped
The upper wall of rail groove, so that it is guaranteed that door cover plate cannot be opened；When slide block enters upper passage between block and lower block, seal
Block departs from the upper wall of horizontally U-shaped rail groove so that occur between door cover plate and seat ring that gap reaches the purpose of release.
Further, spacing arm pivot post can also connect the purge valve door switch (not shown) of pressure vessel, purge valve
Door one end and atmosphere, one end UNICOM internal with pressure vessel, when spacing rotatable handle to spacing state, purge valve is closed
Pressure vessel is internal isolates with outside atmosphere, when spacing rotatable handle to spacing releasing state purge valve open pressure vessel with
The pressure vessel row pressure of outside atmosphere UNICOM, thus strengthen first insurance function.
Relative to prior art, the present invention has the following advantages and technique effect:
Present configuration is simple, arranges ingenious, it is provided that the multiple safety measures of pressure vessel opening door operation, from multiple guarantors
Danger device eliminates the unsafe factors such as the maloperation during pressure vessel opens the door, release is imperfect, comprehensive has ensured pressure
The safety of force container opening door operation person.
Accompanying drawing explanation
Fig. 1 is opening in pressure vessel door-safety (locking state) structural representation of the present invention.
Fig. 2 is opening in pressure vessel door-safety (opening) structural representation of the present invention.
Fig. 3 is the limited block component structural representation of the opening in pressure vessel door-safety of the present invention.
Fig. 4 is the door cover plate modular construction schematic diagram of the opening in pressure vessel door-safety of the present invention.
Fig. 5 is the seat assembly structural representation of the opening in pressure vessel door-safety of the present invention.
Fig. 6 is the spacing handle arrangement schematic diagram of the opening in pressure vessel door-safety of the present invention.
1-door cover plate assembly；2-seat assembly；3-rotating assembly；4-connecting plate；The spacing handle of 5-；6-door open limit block；
7-rotary shaft rack；11-door cover plate；12-projection；13-sealing block；14-gland；15-limiting plate；16-slide block；17-hand handle；21-
Groove；22-horizontally U-shaped rail groove；23-vertical U-type rail groove；51-dish type cylinder；51-arc breach；The spacing handle of 53-；
61-base plate；The upper block of 62-；Block under 63-.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, but the enforcement of the present invention and protection are not limited to
This.
As shown in Fig. 1～Fig. 6, a kind of enabling safeties for pressure vessel, including door cover plate assembly 1, seat ring group
Part 2, rotating assembly 3, connecting plate 4, spacing handle 5 and rotary shaft rack 7；Door cover plate 11 in door cover plate assembly 1 can be around gland 14
Rotating, the door cover plate of door cover plate assembly 1 is fixed with for the hand promoting door cover plate assembly to rotate 17, spacing handle 5 is installed
On seat assembly 2, door cover plate is also equipped with limiting plate 15 for coordinating the limit realizing that door cover plate is rotated with spacing handle 5
System, door cover plate edge is evenly distributed with several projections 12, each projection is fixed with sealing block 13；Door cover plate assembly is by pressure
Lid 14 is fixed with connecting plate 4, and the other end of connecting plate is fixed in rotating shaft 3, and rotating shaft can rotate by support 7 around the shaft, and rotating shaft is propped up
Frame is fixedly mounted on seat assembly 2；Door cover plate circumference can level in seat assembly 2 when gland 14 rotates for door cover plate 11
The circular orbit of U-rail groove 22 slides and (further, seat assembly 2 is additionally provided with vertical U-type rail groove 23, door cover plate
It is protruding that 11 bottom edge are provided with the annular coordinated with this vertical U-type rail groove 23, omits in figure), horizontally U-shaped circular orbit
Cross section is bottom U-shaped in the horizontal direction, and the projection 12 in door cover plate assembly is more than horizontally U-shaped rail with the thickness of sealing block 13
The width of road groove 22 so that door cover plate assembly fully seals with seat assembly；Door cover plate assembly is rotated 17 by hand, and by door
When projection 12 in cover plate assembly rotates to groove 21 position in seat assembly, projection 12 can upwards skid off along groove 21, now
Door cover plate assembly can be opened, thus reach door opening state.
In above-mentioned safeties, spacing handle 5 coordinates with the limiting plate 15 in door cover plate assembly 1, it is achieved first heavily insures；
Spacing handle 5 comprises spacing handle 53, dish type cylinder 51 and arc breach 52 thereof, and spacing handle 53 is with dish type cylinder 51 even
Connecing, dish type cylinder 51 can rotate under spacing handle 53 drives；When the outer arcuate of dish type cylinder 51 forwards to and the limit on door cover plate
During the position that the arc notch of position plate 15 coordinates, the outer arcuate part of i.e. dish type cylinder 51 is positioned in the arc notch of limiting plate 15,
Make door cover plate assembly to rotate thus prevent door cover plate from loosening and security incident occurs；Inner arc is made when spacing handle 5 rotates
When v notch v 52 coordinates with limiting plate 15, the outer arcuate of i.e. dish type cylinder 51 is not positioned in the arc notch of limiting plate 15, then door closure
Board component can rotate around gland 14.The rotating shaft of spacing handle 51 can also connect the purge valve door switch of pressure vessel, row pressure valve
One end and atmosphere, one end UNICOM internal with pressure vessel, when spacing rotatable handle to spacing state, purge valve closes pressure
Force container is internal isolates with outside atmosphere, and when spacing rotatable handle to spacing releasing state, purge valve opens pressure vessel with outer
Portion's atmosphere pressure vessel row pressure, thus strengthen first insurance function.
In above-mentioned safeties, the excircle side of seat assembly 2 is additionally provided with door open limit block 6, such as Fig. 3, door open limit
Block 6 includes base plate 61, lower block 63 and upper block 62；Described hand is being further fixed on slide block 16 on 17；Slide block 16 and door open limit
Block 6 constitutes second and heavily insures；When door cover plate assembly turns to the position of door open limit block 6 always, slide block 16 is by lower block
The prevention of block 63 and cannot be rotated further；If needing to continue to open cover plate, then need hand 17 upwards liftings so that slide block 16
Passage through the lower block 63 in door open limit block 6 and upper block 62, during lifting between door cover plate and seat ring
Form space and the air pressure in pressure vessel is declined rapidly so that pressure easily open the door safety；The L-type design of upper block 62 is really
Protect and pressure vessel gate cover plate stress-relief process can not throw open and clamshell doors operator causes danger；If continuing to open the door,
Then hand should be pressed downward against 17 so that slide block 16 is through the space, oblique angle upper block 62 and lower block 63 so that door closure
Projection 12 in plate 1 is directed at the groove 21 in seat ring 2, so that pressure vessel smooth opening door closure after complete release.
The slide block 16 of door cover plate assembly 1 is limited by spacing handle 5 and cannot cross spacing handle 5 and open clockwise.Door cover plate
The length of the sealing block 13 in assembly 1 is less than the length of projection 12, and sealing block 13 is fixed on one section of projection；And it is full
Foot: the sealing block 13 still level of compression U-rail groove 22 when the slide block 16 lower block 63 edge in encountering door open limit block 6
Upper wall, so that it is guaranteed that door cover plate cannot be opened；When slide block 16 enters upper passage between block 62 and lower block 63, seal
Block 13 departs from the upper wall of horizontally U-shaped rail groove 22 so that occur between door cover plate and seat ring that gap reaches the purpose of release.
As an example, such as Fig. 4, door cover plate is evenly distributed with on 8 projections 12 and projection fixing sealing block 13, door
The thickness of projection in cover plate assembly 12 and sealing block 12 is slightly larger than the width of U-rail groove 22 so that door cover plate assembly with
Seat assembly can fully seal；Rotate door cover plate assembly by hand 17, and the projection 12 in door cover plate assembly is rotated to
Door cover plate assembly can be opened during groove 21 position in seat assembly, thus reach door opening state；Door cover plate assembly is reaching out
Before door state, there is double insurance device, to guarantee that before opening the door, release is complete.
Spacing handle 5 coordinates with the limiting plate 15 in door cover plate assembly 1, it is achieved first heavily insures；Such as Fig. 6, spacing handle 5
Comprise dish type cylinder 51 and arc breach 52, spacing handle 53；When the outer arcuate of dish type cylinder 51 forwards to and limiting plate 51
Arc notch coordinate position time, door cover plate assembly cannot rotate such that it is able to prevent door cover plate loosen and safe thing occurs
Therefore；When the rotation of spacing handle makes arc breach 52 coordinate with limiting plate 15, then door cover plate assembly can rotate.Spacing hand
Handle rotating shaft can also connect the purge valve door switch (not shown) of pressure vessel, row pressure valve one end and atmosphere, one end with
The internal UNICOM of pressure vessel, when spacing rotatable handle to spacing state purge valve closing presure container internal with outside atmosphere every
From, when spacing rotatable handle to spacing releasing state, purge valve opens pressure vessel and outside atmosphere UNICOM pressure vessel row
Pressure, thus strengthen first insurance function.
Slide block 16 in door cover plate assembly 1 constitutes second with door open limit block 6 and heavily insures；When door cover plate assembly turns always
When moving the position to door open limit block 6, slide block 16 cannot be rotated further by the prevention of lower block 63；If needing to continue to beat
Uncap plate, then need hand 17 upwards liftings so that slide block 16 is through the passage lower block 63 and upper block 62, in lifting
During go into space between door cover plate with seat ring and the air pressure in pressure vessel declined rapidly so that pressure easily open the door peace
Entirely；The L-type design of upper block 62 ensure that in pressure vessel gate cover plate stress-relief process and can not throw open and clamshell doors operator
Cause danger；If continue open the door, then should by hand 17 make downwards slide block 16 through the space, oblique angle upper and lower block,
Make the groove 21 that the projection 12 in door cover plate 1 is directed in seat ring 2, so that pressure vessel is beaten after complete release smoothly
Open the door lid.
The announcement of book and teaching according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula changes and revises.Therefore, the invention is not limited in detailed description of the invention disclosed and described above, to the present invention's
Some modifications and changes should also be as falling in the scope of the claims of the present invention.
Claims (6)
1. the enabling safeties for pressure vessel, it is characterised in that include door cover plate assembly (1), seat assembly (2),
Rotating assembly (3), connecting plate (4), spacing handle (5) and rotary shaft rack (7)；Door cover plate (11) in door cover plate assembly (1) can
Rotate around gland (14), the door cover plate of door cover plate assembly (1) be fixed with hand handle (17) for promoting door cover plate assembly to rotate,
Spacing handle (5) is arranged on seat assembly (2), door cover plate is also equipped with limiting plate (15) for coordinating with spacing handle (5)
Realizing the restriction rotating door cover plate, door cover plate edge is evenly distributed with several projections (12), each projection is fixed with close
Envelope block (13)；Door cover plate assembly is fixed with connecting plate (4) by gland (14), and the other end of connecting plate is fixed on rotating assembly
(3), on, rotating assembly can rotate by support (7) around the shaft, and rotary shaft rack is fixedly mounted on seat assembly (2)；Door cover plate
(11) when gland (14) rotates, door cover plate circumference can slide in the horizontally U-shaped circular orbit in seat assembly (2), circumference rail
The cross section in road is bottom U-shaped in the horizontal direction, and the projection (12) in door cover plate assembly is more than with the thickness of sealing block (13)
The width of horizontally U-shaped rail groove (22) so that door cover plate assembly fully seals with seat assembly；By hand, (17) are rotated door closure
Board component, and the projection (12) in door cover plate assembly is rotated to projection (12) energy edge during groove (21) position in seat assembly
Groove (21) upwards skids off, and now can open door cover plate assembly, thus reach door opening state.
A kind of enabling safeties for pressure vessel the most according to claim 1, it is characterised in that spacing handle (5)
Coordinate with the limiting plate (15) in door cover plate assembly (1), it is achieved first heavily insures；Spacing handle (5) comprise spacing handle (53),
Dish type cylinder (51) and arc breach (52) thereof, spacing handle (53) is connected with dish type cylinder (51), dish type cylinder (51) energy
Rotate under spacing handle (53) drives；When the outer arcuate of dish type cylinder (51) forwards to and the arc of the limiting plate (15) on door cover plate
During the position that v notch v coordinates, the outer arcuate part of i.e. dish type cylinder (51) is positioned in the arc notch of limiting plate (15), makes door closure
Board component cannot rotate thus prevent door cover plate from loosening；Arc breach (52) and limiting plate is made when spacing handle (5) rotates
(15) when coordinating, the outer arcuate of i.e. dish type cylinder (51) is not positioned in the arc notch of limiting plate (15), then door cover plate assembly can be around
Gland (14) rotates.
A kind of enabling safeties for pressure vessel the most according to claim 2, it is characterised in that spacing handle (5)
Rotating shaft is also connected with the purge valve door switch of pressure vessel, row pressure valve one end and atmosphere, one end connection internal with pressure vessel
Logical, when spacing rotatable handle to spacing state, purge valve closing presure container is internal isolates, when spacing handle with outside atmosphere
Rotate to purge valve during spacing releasing state and open pressure vessel and the pressure vessel row pressure of outside atmosphere UNICOM, thus strengthen the
One insurance function.
A kind of enabling safeties for pressure vessel the most according to claim 1, it is characterised in that seat assembly
(2) excircle side is additionally provided with door open limit block (6), and described hand is further fixed on slide block (16) on (17)；Slide block (16) with
Door open limit block (6) constitutes second and heavily insures；When door cover plate assembly turns to the position of door open limit block (6) always, sliding
Block (16) cannot be rotated further by the prevention of lower block (63)；If needing to continue to open cover plate, then need hand (17)
Upwards lifting so that slide block (16) through the passage the lower block (63) in door open limit block (6) and upper block (62),
Forming space during lifting between door cover plate and seat ring makes the air pressure in pressure vessel decline rapidly so that pressure is easily opened
Door safety；The L-type design of upper block (62) ensure that in pressure vessel gate cover plate stress-relief process and can not throw open and clamshell doors
Operator causes danger；If continuing to open the door, then hand should be pressed downward against (17) so that slide block (16) passes upper block (62)
And the space, oblique angle between lower block (63) so that recessed in the projection (12) alignment seat assembly (2) in door cover plate assembly (1)
Groove (21), so that pressure vessel smooth opening door closure after complete release.
A kind of enabling safeties for pressure vessel the most according to claim 1, it is characterised in that door cover plate assembly
(1) slide block (16) is limited by spacing handle (5) and cannot cross spacing handle (5) and open clockwise.
A kind of enabling safeties for pressure vessel the most according to claim 1, it is characterised in that door cover plate assembly
(1) length of the sealing block (13) in is less than the length of projection (12), and sealing block (13) is fixed on one section of projection；And
Meet: sealing block (13) still level of compression U when the slide block (16) lower block (63) edge in encountering door open limit block (6)
The upper wall of type rail groove (22), so that it is guaranteed that door cover plate cannot be opened；When block (62) and lower block in slide block (16) entrance
(63) during passage between, sealing block (13) departs from the upper wall of U-rail groove (23) so that occur seam between door cover plate and seat ring
Gap and reach the purpose of release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319301.0A CN104089009B (en) | 2014-07-07 | 2014-07-07 | A kind of enabling safeties for pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319301.0A CN104089009B (en) | 2014-07-07 | 2014-07-07 | A kind of enabling safeties for pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104089009A CN104089009A (en) | 2014-10-08 |
| CN104089009B true CN104089009B (en) | 2016-09-07 |
Family
ID=51636751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410319301.0A Expired - Fee Related CN104089009B (en) | 2014-07-07 | 2014-07-07 | A kind of enabling safeties for pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104089009B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108569221A (en) * | 2017-03-09 | 2018-09-25 | 标致·雪铁龙汽车公司 | Reverse image CCD camera assembly and vehicle for vehicle |
| CN107126602B (en) * | 2017-06-02 | 2023-03-28 | 南京巨鲨显示科技有限公司 | Flange cover plate turnover device for fixing needle cylinder |
| CN108757935B (en) * | 2018-05-30 | 2019-10-22 | 冰山松洋生物科技(大连)有限公司 | A kind of pressure vessel of quick opening door mechanism of annulus crosswise joint |
| CN108758016B (en) * | 2018-08-02 | 2023-08-01 | 超达阀门集团股份有限公司 | Ball valve with opening and closing device |
| CN108758150A (en) * | 2018-08-08 | 2018-11-06 | 合肥精都机电仪表有限公司 | A kind of petrochemical system filter fast opening blind |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR874691A (en) * | 1941-08-12 | 1942-08-18 | Safety device for containers with rotating lids and quick-closing stop device | |
| CN2154892Y (en) * | 1993-05-17 | 1994-02-02 | 张克岩 | Quick dual-function lock for pressure vessel |
| CN2572144Y (en) * | 2002-09-21 | 2003-09-10 | 许美亭 | Electromechanical type safety linklocking device for quick door open pressured container |
| CN201487199U (en) * | 2009-08-17 | 2010-05-26 | 上虞大兴锅炉容器有限公司 | Quick-opening device for rotating ring of pressure vessel |
| CN203162138U (en) * | 2013-02-05 | 2013-08-28 | 广州市特种承压设备检测研究院 | Still kettle quick open door kettle cover rotation limiting mechanism |
| CN204004366U (en) * | 2014-07-07 | 2014-12-10 | 广州番禺高勋染整设备制造有限公司 | A kind of safty device that open the door for pressurized container |
-
2014
- 2014-07-07 CN CN201410319301.0A patent/CN104089009B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR874691A (en) * | 1941-08-12 | 1942-08-18 | Safety device for containers with rotating lids and quick-closing stop device | |
| CN2154892Y (en) * | 1993-05-17 | 1994-02-02 | 张克岩 | Quick dual-function lock for pressure vessel |
| CN2572144Y (en) * | 2002-09-21 | 2003-09-10 | 许美亭 | Electromechanical type safety linklocking device for quick door open pressured container |
| CN201487199U (en) * | 2009-08-17 | 2010-05-26 | 上虞大兴锅炉容器有限公司 | Quick-opening device for rotating ring of pressure vessel |
| CN203162138U (en) * | 2013-02-05 | 2013-08-28 | 广州市特种承压设备检测研究院 | Still kettle quick open door kettle cover rotation limiting mechanism |
| CN204004366U (en) * | 2014-07-07 | 2014-12-10 | 广州番禺高勋染整设备制造有限公司 | A kind of safty device that open the door for pressurized container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104089009A (en) | 2014-10-08 |
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