CN204755900U - A integration safety interlock that is used for fast open -blind plate structure of catch formula - Google Patents
A integration safety interlock that is used for fast open -blind plate structure of catch formula Download PDFInfo
- Publication number
- CN204755900U CN204755900U CN201520423757.1U CN201520423757U CN204755900U CN 204755900 U CN204755900 U CN 204755900U CN 201520423757 U CN201520423757 U CN 201520423757U CN 204755900 U CN204755900 U CN 204755900U
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- China
- Prior art keywords
- alarm
- lock core
- alarm screw
- core shaft
- screw rod
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Abstract
The utility model provides an integration safety interlock that is used for fast open -blind plate structure of catch formula, on the warning screw rod under casing, the warning screw rod casing to pass through threaded connection fixed, both coordinate to form to enclose and establish the space, the epaxial cover in proper order of lock core has last gland, rubber diaphragm, lower gland, and it tightens sealedly through the screw. Surface mounting has O type rubber seal in the middle of the internal portion of warning screw rod inferior valve. Warning screw rod twist grip tip is equipped with the step, on the warning screw rod between casing and the warning screw rod twist grip tip step pin joint through two sets of symmetries fixed, the middle axial position of the following department of warning screw rod twist grip opens flutedly, stroke gag lever post along this recess removal, the handle pin is installed in the radial position of warning screw rod twist grip, restricts the axial displacement that the catch was inserted. This device can avoid there is being the maloperation of taking out warning screw rod and catch under the condition of incomplete residual pressure power and inserting, avoids the medium to operator's injury with to the pollution of environment.
Description
Technical field
The utility model is applicable to the lock-ring-type fast-opening blind structure on pressurized container, specifically a kind of novel all-in-one safety interlock, belongs to fast-opening blind pressure vessel technology field.
Background technique
Fast-opening blind structure is mounted in pressurized container or pressure piping end, realizes a kind of mechanical device opened and closed fast, is widely used in oil and gas industry.Relative to bolt flange structure, it is quicker that fast-opening blind structure opens and closes door closure operation.Fast-opening blind structure is the important component part of long distance pipeline filter and receiving ball tube device, usually the inflammable and explosive medium of conveying.In practical operation, usually there is potential safety hazard, such as due to reasons such as pressure gauge inefficacies, pressurized container with pressure is opened by operator by mistake; Or door closure is not closed completely and is just started boosting, and this all can jeopardize the safety of the person and equipment, can lead to serious accident time serious.
Fast-opening blind safety interlock effectively can prevent the generation of this type of accident, but China and foreign countries' regulation, standard are different to the requirement of fast-opening blind safety interlock.
Chinese T SGR0004-2009 " fixed safe technology of pressure vessel Supervision Code " the 3.20th article of regulation safety interlock should meet following functions: 1, when fast-opening blind reaches predetermined closed position, can booste operation; 2, when device interior pressure discharges completely, quick-opening structure can be opened.And U.S. ASME specifies: quick-opening structure should arrange sound equipment or visual warning device, clamping element and locking member incomplete in place before pressurization, or in equipment, pressure is not released when opening completely and is reminded operator to note.The domestic and international requirement to safety interlock is different as can be seen here: national legislation requirement, and before complete pressure release, safety interlock can ensure that structure can not be opened by force; Alarm function plays in the U.S. then regulation safety interlock.The difference of domestic and international regulation causes current import security interlock, all can not meet national legislation requirement.
Summary of the invention
For the problems referred to above, the utility model provides a kind of novel all-in-one safety interlock for lock-ring-type fast-opening blind structure that can meet the domestic requirement to safety interlock, and this interlock comprises lock ring insert (12), alarm screw upper shell (2), alarm screw lower shell body (4), alarm screw rotatable handle (14), metallic shim (10), O type rubber seal (5), handle pin (13).
Alarm screw upper shell (2) is provided with internal thread, alarm screw lower shell body (4) is provided with outside thread, alarm screw upper shell (2), alarm screw lower shell body (4) are threaded connection fixing, and both coordinate formation to enclose space; Lock core shaft (6) is arranged on the middle position that both enclose space, and lock core shaft (6) is provided with three grades of ladders.
In lock core shaft (6), cover has upper press cover (17), elastomer diaphragm (3), lower cover (16) successively, wherein upper press cover (17) is located at lock core shaft (6) first order ladder place, the centre of elastomer diaphragm (3) is located at ladder place, lock core shaft (6) second level, and the two ends of elastomer diaphragm (3) are fixed on the connecting end of alarm screw upper shell (2), alarm screw lower shell body (4).
Lower cover (16) is located at lock core shaft (6) third level ladder place, upper press cover (17), lower cover (16), compact siro spinning technology between elastomer diaphragm (3) and lock core shaft (6); Spring (7) is enclosed within lock core shaft (6), and spring (7) one end contacts with lower cover (16); Stroke limit bar (9) is set in the bottom of lock core shaft (6), and stroke limit bar (9) is fixed by pad (10) and hexagon nut (11) with lock core shaft (6).
Be provided with axle sleeve (8) between spring (7) the other end and alarm screw lower shell body (4), axle sleeve (8) is arranged between alarm screw lower shell body (4) and lock core shaft (6).
Upper press cover (17), lower cover (16), to be sealed by screwed tight between elastomer diaphragm (3) and lock core shaft (6).
Alarm screw lower shell body (4) interior intermediate surface is provided with O type rubber seal (5).
Alarm screw rotatable handle (14) end is provided with step, and the pin (15) by two groups of symmetries between alarm screw upper shell (2) and alarm screw rotatable handle (14) end step is connected and fixed.
In the middle of alarm screw rotatable handle (14), position has groove vertically, and stroke limit bar (9) moves along this groove; Handle pin (13) is arranged on alarm screw rotatable handle (14) radial position, the axial displacement of restriction lock ring insert (12).
Alarm screw upper shell (2) end is provided with screw thread, and alarm screw upper shell (2) is connected with door closure by screw-thread fit.
Central axis place, alarm screw upper shell (2) end has inlet hole (1), the radial position of alarm screw upper shell (2) has air outlet hole (18), inlet hole (1) and air outlet hole (18) link together, and form the warning of uttering long and high-pitched sounds of this interlock.
When pipeline pressure discharges completely, stroke limit bar (9) arrives upper end limit position, now distance alarm screw rod rotatable handle (14) end, stroke limit bar (9) lower end surface step 1mm.
When pressure discharges completely, stroke limit bar (9) arrives the most upper extreme position of groove on alarm screw rotatable handle (14), and stroke limit bar (9) and lock ring insert (12) go up intermarginal axial distance and be more than or equal to reach between alarm screw upper shell (2) and door closure.
The utility model is arranged in lock-ring-type fast-opening blind structure, in enabling and door closing procedure, realize safety interlocking function.Be characterized in the alarm screw in conventional apparatus, lock ring insert, safety interlock three to be integrated, structure is compacter, effectively protect precision apparatus and more safe and reliable.Under the effect of interior media pressure, lock core shaft drives stroke limit bar to move down, and alarm screw cannot be screwed out completely, and insert cannot be taken out, and reminds operator to still have residual pressure.The utility model can avoid the misoperation of taking out alarm screw and lock ring insert when there being residual pressure, avoids the injury of medium to operator and the pollution to environment, ensures the Security of equipment use.
The utility model can meet the requirement of national legislation to safety interlock, unique in like product.
Accompanying drawing explanation
Fig. 1 is a kind of erection drawing for the structure-integrated safety interlock of lock-ring-type fast-opening blind of the present utility model;
In figure:
1. inlet hole 2. alarm screw upper shell
3. elastomer diaphragm 4. alarm screw lower shell body
5.O type rubber seal 6. lock core shaft
7. spring 8. axle sleeve
9. stroke limit bar 10. pad
11. hexagon nut 12. lock ring inserts
13. handle pin 14. alarm screw rotatable handles
15. pin 16. lower covers
17. upper press cover 18. air outlet holes
Embodiment
The working procedure of this device is introduced below in conjunction with said structure.
Safety interlock of the present utility model is used for lock-ring-type fast-opening blind structure.
When there is pressure medium in pressurized container or pipeline, pressure is arrived by inlet hole and enters in the cavity of alarm screw upper shell, pushing lock cylinder axle moves down, lock core shaft drives upper and lower gland and elastomer diaphragm to move down simultaneously, and now elastomer diaphragm withstands alarm screw lower shell body, and spring is compressed, stroke limit bar is also along with lock core shaft moves identical distance, press close to lock ring insert, remind operator inside to have pressure, can not operate.
After pressurized container or pipeline pressure release, still there is residual pressure, first utilize safety relief valve to release a part of residual pressure, now stroke limit bar moves, be between two limit positions, interlock is outwards screwed out a segment distance, if hear alarm song, then illustrate and have gas to get rid of from air outlet, inside still has residual pressure, distance now between stroke limit bar and lock ring insert is less than the reach between alarm screw upper shell and door closure, and alarm screw cannot screw out; Only have when there is not pressure medium in pressurized container or pipeline completely, under spring force, alarm screw upper shell withstands in lock core shaft, stroke limit bar arrives upper end limit position, distance now between stroke limit bar and lock ring insert equals or is a bit larger tham the reach between alarm screw upper shell and door closure, interlock can screw out completely, and then takes out lock ring insert.
Below only for illustration of the utility model, but not to restriction of the present utility model, the technician of related fields, when not departing from spirit and scope of the present utility model, allow to make change, therefore all equal technological schemes also should belong to category of the present utility model, should be limited by each claim.
Claims (3)
1. for an integrated safe interlock for lock-ring-type fast-opening blind structure, it is characterized in that: this interlock comprises lock ring insert (12), alarm screw upper shell (2), alarm screw lower shell body (4), alarm screw rotatable handle (14), metallic shim (10), O type rubber seal (5), handle pin (13);
Alarm screw upper shell (2) is provided with internal thread, alarm screw lower shell body (4) is provided with outside thread, alarm screw upper shell (2), alarm screw lower shell body (4) are threaded connection fixing, and both coordinate formation to enclose space; Lock core shaft (6) is arranged on the middle position that both enclose space, and lock core shaft (6) is provided with three grades of ladders;
In lock core shaft (6), cover has upper press cover (17), elastomer diaphragm (3), lower cover (16) successively, wherein upper press cover (17) is located at lock core shaft (6) first order ladder place, the centre of elastomer diaphragm (3) is located at ladder place, lock core shaft (6) second level, and the two ends of elastomer diaphragm (3) are fixed on the connecting end of alarm screw upper shell (2), alarm screw lower shell body (4);
Lower cover (16) is located at lock core shaft (6) third level ladder place, upper press cover (17), lower cover (16), compact siro spinning technology between elastomer diaphragm (3) and lock core shaft (6); Spring (7) is enclosed within lock core shaft (6), and spring (7) one end contacts with lower cover (16); Stroke limit bar (9) is set in the bottom of lock core shaft (6), and stroke limit bar (9) is fixed by pad (10) and hexagon nut (11) with lock core shaft (6);
Be provided with axle sleeve (8) between spring (7) the other end and alarm screw lower shell body (4), axle sleeve (8) is arranged between alarm screw lower shell body (4) and lock core shaft (6);
Upper press cover (17), lower cover (16), to be sealed by screwed tight between elastomer diaphragm (3) and lock core shaft (6);
Alarm screw lower shell body (4) interior intermediate surface is provided with O type rubber seal (5);
Alarm screw rotatable handle (14) end is provided with step, and the pin (15) by two groups of symmetries between alarm screw upper shell (2) and alarm screw rotatable handle (14) end step is connected and fixed;
In the middle of alarm screw rotatable handle (14), position has groove vertically, and stroke limit bar (9) moves along this groove; Handle pin (13) is arranged on alarm screw rotatable handle (14) radial position.
2. a kind of integrated safe interlock for lock-ring-type fast-opening blind structure according to claim 1, it is characterized in that: alarm screw upper shell (2) end is provided with screw thread, alarm screw upper shell (2) is connected with door closure by screw-thread fit.
3. a kind of integrated safe interlock for lock-ring-type fast-opening blind structure according to claim 1, it is characterized in that: central axis place, alarm screw upper shell (2) end has inlet hole (1), the radial position of alarm screw upper shell (2) has air outlet hole (18), and inlet hole (1) and air outlet hole (18) link together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423757.1U CN204755900U (en) | 2015-06-18 | 2015-06-18 | A integration safety interlock that is used for fast open -blind plate structure of catch formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423757.1U CN204755900U (en) | 2015-06-18 | 2015-06-18 | A integration safety interlock that is used for fast open -blind plate structure of catch formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755900U true CN204755900U (en) | 2015-11-11 |
Family
ID=54470608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520423757.1U Expired - Fee Related CN204755900U (en) | 2015-06-18 | 2015-06-18 | A integration safety interlock that is used for fast open -blind plate structure of catch formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913058A (en) * | 2015-06-18 | 2015-09-16 | 北京化工大学 | Integrated safe interlock device used for lock-ring type quick open blind plate structure |
-
2015
- 2015-06-18 CN CN201520423757.1U patent/CN204755900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913058A (en) * | 2015-06-18 | 2015-09-16 | 北京化工大学 | Integrated safe interlock device used for lock-ring type quick open blind plate structure |
| CN104913058B (en) * | 2015-06-18 | 2017-07-18 | 北京化工大学 | A kind of integrated safe interlock for lock-ring-type fast-opening blind structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20210618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |