CN106979330B - Quick-opening safety interlocking device for pressure vessel - Google Patents
Quick-opening safety interlocking device for pressure vessel Download PDFInfo
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- CN106979330B CN106979330B CN201610028217.2A CN201610028217A CN106979330B CN 106979330 B CN106979330 B CN 106979330B CN 201610028217 A CN201610028217 A CN 201610028217A CN 106979330 B CN106979330 B CN 106979330B
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- cover
- close
- handle
- reset
- control box
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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
- F16J13/24—Covers or similar closure members for pressure vessels in general with safety devices, e.g. to prevent opening prior to pressure release
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The present invention relates to pressure vessel technology field more particularly to Quick-opening safety interlocking device for pressure vessel.The Quick-opening safety interlocking device for pressure vessel includes: tank, cover, electric appliance control box, electro connecting pressure gauge, combined aural and visual alarm, indicator light, control handle, relief valve, dead-man's handle, quick operating valve limiting device, cover is equipped with above the tank, cover edge is equipped with relief valve, the relief valve is equipped with dead-man's handle, the two sides of dead-man's handle are equipped with quick operating valve limiting device, the indicator light is located on electric control box, and it is connected by electric control box with relief valve, electric control box is connected with electro connecting pressure gauge, the control handle is located on electric appliance control box.Quick-opening safety interlocking device for pressure vessel provided by the invention, rationally, installation is simple, and easily operated, at low cost, highly reliable, independence is strong for design.
Description
Technical field
The present invention relates to pressure vessel technology field more particularly to Quick-opening safety interlocking device for pressure vessel.
Background technique
With the development of science and technology, fast opening type pressure container application is further extensive, to fast opening type pressure container
Safety management also results in people's great attention, and incorporates laws and regulations, and the 3.20th article of " content regulation " TSGR0004-2009
Clearly stipulate that 1, when quick operating valve reaches predetermined close position, can booste operation；2, when the internal pressure of pressure vessel is released completely
It puts, quick operating valve can be opened.In order to guarantee that door-opening pressure vessel is safely operated, developing safe and reliable safety interlock system is
It is very necessary.
Summary of the invention
In view of the above drawbacks of the prior art, Quick-opening safety interlocking device for pressure vessel provided by the invention is meeting
While " content regulation " 3.2049 requires, with the attitude that tight a beautiful gem is pragmatic, it is contemplated that open tank door under maloperation, valve will be automatic
Row pressure is opened, loss is reduced, it is contemplated that the trueness error of pressure sensor introduces residual voltage concept in tank, provides residual voltage row
Gas time calculation method and empirical data have function reliable, and easy to operate, flexible movements, step is accurate, and design rationally, is pacified
Dress is simple, at low cost, highly reliable, the strong feature of independence.
In order to achieve the above object, the invention provides the following technical scheme:
Quick-opening safety interlocking device for pressure vessel includes: tank, cover, electric appliance control box, electro connecting pressure gauge, acousto-optic report
Alert device, indicator light, control handle, relief valve, dead-man's handle, quick operating valve limiting device, power supply, close to switch, guard bar bolt,
Host computer or PLC, the tank top are equipped with cover, and cover edge is equipped with relief valve, and the relief valve is equipped with dead-man's handle,
The two sides of dead-man's handle are equipped with quick operating valve limiting device, and the indicator light is located on electric control box, and passes through electric control box
It is connected with relief valve, electric control box is connected with electro connecting pressure gauge, close to switch, host computer or PLC, and the control handle is set
On electric appliance control box, the power supply is connected with cover, and the guard bar bolt is connected with relief valve, described to be located at close to switch
Between tank and cover and at dead-man's handle.
Wherein, the control handle include: local/remote switching push button, audible-visual alarm lamp, movement maintain button, uncap/
Reset/closing lid knob, Song Gai/reset/tight lid knob.
Wherein, it is described close to switch include: cover reach position, cover close in place, cover pine in place, cover be tightened to position, peace
Full handle reaches position, dead-man's handle close in place, guard bar bolt go out in place seven close to switch.
Wherein, electro connecting pressure gauge is introduced electric appliance control box, composition in the signal close to switch by the electric appliance control box
Electrical safety interlocking, signal is sent into host computer or PLC by connection by the signal received by electric appliance control box makes it in group
State picture is shown.
Wherein, the power supply is 24V DC power supply, is not shared with host computer or PLC.
Wherein, the indicator light includes: to have pressure indicator light and cover locking indicator light in tank, has pressure indicator light in the tank
It is connected in tank, the cover locking indicator light is connected with relief valve.
The beneficial effects of the present invention are: Quick-opening safety interlocking device for pressure vessel provided by the invention, using electrical connection
Lock, security performance coefficient is high, reduces cost of investment while can guarantee that safety interlock obtains safe and reliable operation, has
Scientific, safety；It can realize and communicate with host computer or PLC, it will be close to switch by switching input module and connection
Equal on-off models are transmitted to host computer and realize function for monitoring；Equipped with locally, remotely switching push button, majority of case application is local
Operation can observe quick operating valve movement at any time, while prevent operator from neglecting one's duties.It also may be implemented when needed long-range
Operation；Independence is strong, and 24V DC power supply used is individually, not share with host computer and PLC, even if host computer emergency situations
Cause to shut down, as long as 24V DC power supply still provides, quick operating valve operation still can be realized normally.
For further understanding of the features and technical contents of the present invention, it please refers to below in connection with of the invention detailed
Illustrate and attached drawing, however, the drawings only provide reference and explanation, is not intended to limit the present invention.
Detailed description of the invention
With reference to the accompanying drawing, by the way that detailed description of specific embodiments of the present invention, technical solution of the present invention will be made
And other beneficial effects are apparent.
Fig. 1 is the top view of Quick-opening safety interlocking device for pressure vessel of the present invention.
Fig. 2 is the electric appliance control box structural schematic diagram of Quick-opening safety interlocking device for pressure vessel of the present invention.
Specific embodiment
Further to illustrate technological means and its effect adopted by the present invention, below in conjunction with preferred implementation of the invention
Example and its attached drawing are described in detail.
Fig. 1, Fig. 2 are please referred to, Quick-opening safety interlocking device for pressure vessel includes: 1, pressure vessel of quick opening door safety interlocking
Device characterized by comprising tank 1, cover 2, electric appliance control box, electro connecting pressure gauge 3, combined aural and visual alarm 4, indicator light, control
Knob processed, relief valve 5, dead-man's handle 6, quick operating valve limiting device 7, power supply, close to switch, guard bar bolt, host computer or
PLC is equipped with cover 2 above the tank 1, and 2 edge of cover is equipped with relief valve 5, and the relief valve 5 is equipped with dead-man's handle 6, peace
The two sides of full handle 6 are equipped with quick operating valve limiting device 7, and the indicator light is located on electric control box, and passes through electric control box
It is connected with relief valve 5, electric control box is connected with electro connecting pressure gauge 3, close to switch, host computer or PLC, the control handle
It is located on electric appliance control box, the power supply is connected with cover 2, and the guard bar bolt is connected with relief valve 5, described close to switch
It is located between tank 1 and cover 2 and at dead-man's handle 6.
Further, the control handle include: local/remote switching push button 7, audible-visual alarm lamp 4, movement maintain button 8,
It uncaps/resets/closing lid knob 9, Song Gai/reset/tight lid knob 10.
Further, it is described close to switch include: cover reach position, cover close in place, cover pine in place, cover be tightened to position,
Dead-man's handle reach position, dead-man's handle close in place, guard bar bolt go out in place seven close to switch.
Further, electro connecting pressure gauge 3 is introduced electric appliance control box, group in the signal close to switch by the electric appliance control box
It is interlocked at electrical safety, signal is sent into host computer or PLC11 by connection by the signal received by electric appliance control box makes it
It is shown in configuration picture.
Further, the power supply is 24V DC power supply, is not shared with host computer or PLC11.
Further, the indicator light includes: to have pressure indicator light 12 and cover locking indicator light 13 in tank, has pressure in the tank
It is connected in indicator light 12 and tank 1, the cover locking indicator light 13 is connected with relief valve 5.
Local/remote switching push button 7: realizing the local and remote switching that cover 2 acts, when the button is pressed, this
Ground movement stops, i.e., cannot carry out cover operation by this electric cabinet, can carry out cover 2 by host computer or PLC11 and operate.
When the button bounces, host computer or PLC11 not can be carried out the operation of cover 2, it is necessary to this electric cabinet that passes through carry out cover 2 and grasp
Make.
Audible-visual alarm lamp 4: providing sound and light of alarm, and when the execution of some 2 action knob of cover but the operation condition is discontented
Foot, then can alarm.It is generally present at the beginning and end of the movement of cover 2, such as in tight lid, if tight cover fillet part is discontented
Foot, and go to act tight lid knob 10, then it will call the police, each condition for reminding operator to check that tight lid needs；If cover 2 is just
It is realizing tight lid movement, not will call the police；When cover 2 is tightened to, the tight lid actual act of cover 2 stops, and will alarm, mention
Awake operator in time resets tight lid knob 10.
Cover locks indicator light 13: tank 1 can carry out evacuating the premise mark of the technological operations such as pressurization.Only when cover 2
Close in place, locking in place, dead-man's handle 6 close in place that just meeting is bright for the indicator light when meeting simultaneously.Remind operator that can carry out
Technological operation.
There is pressure indicator light 12 in tank: having the mark of positive pressure in tank 1, when having pressure in tank 1, which can be bright, reminds behaviour
Make personnel not and can be carried out the movement of can opening lid 2, guarantees safety；Meanwhile the lamp, when lighting, the safety interlocking in electric cabinet also guarantees
Cover 2 exercise void.
Movement maintains button 8: when in order to guarantee that cover 2 acts operator always at the scene, hair when preventing personnel from leaving
Outside business, only pinning the button actions always just be can be carried out, and midway is unclamped the then movement of cover 2 and stopped immediately.
Uncap/reset/closing lid knob 9: the action knob for closing lid of uncapping, it is to uncap which, which rotates counterclockwise to position, suitable
It is closing lid that hour hands, which are rotated in place, and being placed in middle position is to reset.
Loose lid/reset/tight lid knob 10: pine covers tightly the action knob of lid, and it is loose lid which, which rotates counterclockwise to position, suitable
It is tightly to cover that hour hands, which are rotated in place, and being placed in middle position is to reset.
In addition to electric cabinet panel, there are also other corollary equipments for safety interlocking, including cover reaches position, cover close in place, tank
Lid pine is in place, cover is tightened to position, dead-man's handle reaches position, dead-man's handle close in place, guard bar bolt go out in place seven close to opening
It closes and electro connecting pressure gauge 3, these on-off models introduces in electric cabinet from field device, electricity is on the one hand formed in electric cabinet
Gas safety interlocking, on-off model, which is on the other hand sent into host computer or PLC11, by switching input module and connection makes
It shows in configuration picture.
Electric cabinet is set there are two wire inlet-outlet, and one is the inlet wire of live switching value and 24VDC power supply, the other is arriving big
485 connections (Shielded Twisted Pair) and split conductor of power control cabinet are (for connecing hydraulic station and opening and closing, loosening, tighten, solenoid valve output
).
Process of uncapping is as follows:
1. the dead-man's handle 6 opened on cover 2 is vented, when 3 pointer of electro connecting pressure gauge drops to zero-pressure, there is pressure to refer in tank
When showing that lamp 12 does not work, it is ensured that guard bar bolt goes out in place, dead-man's handle 6 reaches position, bright close to switch lamp at two；
2. carrying out loose cover 2, loose lid/reset/tight lid knob 10 is first rotated counterclockwise into loose 2 position of cover, then one
Directly pin movement maintain button 8, until pine in place, audible-visual alarm lamp 4 is alarmed.Release movement maintains button 8, checks confirmation
In place, cover pine is bright close to switch lamp in place for 2 pine of cover, and Jiang Songgai/reset/tight lid knob 10 is placed in intermediate reset position, sound
4 stop alarm of light alarm lamp；
3. carrying out can opening lid 2, cover 2 is first rotated counterclockwise into uncapped position, movement is then pinned always and maintains button
8, until cover reaches position, sound-light alarm is alarmed.Release button checks that confirmation cover reaches position close to switch, reaches position
It is bright close to switch lamp, will set uncap/reset/closing lid knob 9 is in intermediate reset position, sound-light alarm stop alarm；
4. guard bar bolt is fully inserted into, so that it may hang out workpiece.
When tank 1 being needed to carry out technological operation after hanging in workpiece, when needing to carry out closing lid, closing lid process is as follows:
1. guard bar bolt is extracted, it is ensured that guard bar bolt goes out in place, bright close to switch lamp；
2. carrying out closing lid, will first uncap/reset/closing lid knob 9 is rotated clockwise to capping position, cover is revolved clockwise
Capping position is gone to, movement is then pinned always and maintains button 8, until closing in place, audible-visual alarm lamp 4 is alarmed.It unclamps dynamic
Make maintain button 8, check confirmation cover close in place close to switch, cover close it is bright close to switch lamp in place, will uncap/reset/close
Lid knob 9 is placed in intermediate reset position, 4 stop alarm of audible-visual alarm lamp；
3. tightly being covered, loose lid/reset/tight lid knob 10 will be first rotated clockwise to tight lid position, will then be pinned always
Movement maintains button 8, and until cover is tightened to position, audible-visual alarm lamp 4 is alarmed.Release movement maintains button 8, checks confirmation tank
It covers tightly in place, it is bright close to switch lamp to be tightened to position, and loose benefit/reset/tight lid knob 10 is placed in intermediate reset position, audible-visual alarm lamp
4 stop alarms；
4. dead-man's handle 6 is shut, inspection ensures that dead-man's handle 6 is closed to dead-man's handle and closes in place close to switch, safety hand
Handle closes bright close to switch lamp in place, and indicator light 13 is bright can be carried out technological operation for electric cabinet panel cover locking at this time.
The determination of residual pressure drain time in container:
Calculation method:
The volume V=15m of tank3The diameter of exhaust outlet is D=32mm
Electro connecting pressure gauge range is that -0.1Mpa-0.9Mpa accuracy class is 1.6
The error of table: 1.6%x1.0Mpa=0.0016Mpa
Assuming that residual pressure is worst error value -0,0016Mpa of table because gauge pressure is relative pressure in tank, in tank
Absolute pressure be pIt is residual=0.1016Mpa, and the absolute pressure outside tank
p0=0.1Mpa
p0=0.1Mpa；
pIt is residual=0.1016Mpa
A0The area m of --- --- exhaust outlet2
G------- gas flow
Q------- flow
Δ G------- gas variation amount
U------- conductance refers to the ability that gas is flowed along pipeline
X------- pressure ratio
Formula:
X=p0/pIt is residual=0.1/0.1016=0.98
A0=0.016*0.016*3.14=0.0008m2
G=P.V
Q=Δ G/t=U. (pIt is residual-p0)
Δ G=(pIt is residual-p0).V
∴(pIt is residual-p0) .V/t=U. (pIt is residual-p0)
U=V/t
Conductance of the aperture to 20 DEG C of air under viscous stream mode:
As 1 >=x >=0.052
--- referring to " vacuum design handbook "
National Defense Industry Press
∴ t=V/U=15/2.3=6.52 (s)
The t=13s if safety coefficient takes n=2
For the ease of memory in engineering, it is usually taken as 1m3Container, when discharge outlet is DN32mm, residual voltage drain time is 1s.
Residual voltage drain time is inversely proportional with exhaust caliber, and container diameter increases, and exhaust caliber can be increase accordingly in proportion.
Experimental method: must be in slack tank 1, taking a diameter 10-15mm length is the lucite pipe of 3m, is made into U-shaped
Pipe is 1.0m close to container end length, is connected a manually-operated gate with tank 1, other end 1-1.3m is filled with coloured liquid
Body slowly opens hand valve when pressure is 0 in pressure release to instrument board, until putting dead-man's handle opening when liquid level no longer rises
Gas, while timing is equal to U-tube both ends liquid level, the required time is residual voltage drain time.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. Quick-opening safety interlocking device for pressure vessel characterized by comprising tank, cover, electric control box, electric contact pressure
Power table, audible-visual alarm lamp, indicator light, control handle, relief valve, dead-man's handle, quick operating valve limiting device, power supply, close to switch,
Guard bar bolt, host computer or PLC, the tank top are equipped with cover, and the cover edge is equipped with relief valve, the relief valve
It is equipped with dead-man's handle, the two sides of the dead-man's handle are equipped with quick operating valve limiting device, and the indicator light is located at electric control box
On, and be connected by the electric control box with the relief valve, the electric control box and the electro connecting pressure gauge approach
Switch, host computer or PLC are connected, and the control handle is located on the electric control box, the control handle include: it is local/
Long-range switching push button, movement maintenance button, uncap/reset/closing lid knob, Song Gai/reset/tight lid knob；It, first will be loose when uncapping
Lid/reset/tight lid knob rotates counterclockwise to the position Song Gai, and long-pressing movement maintain button to pine in place, audible-visual alarm lamp report
Alert, release movement maintains button, when cover pine is bright close to switch lamp in place, resets loose lid/reset/tight lid knob, inverse later
Hour hands rotate/closing lid knob of uncapping/reset, and long-pressing movement maintains button to cover to reach position, and audible-visual alarm lamp alarm is unclamped and moved
Make maintenance button, cover reach position it is bright close to switch lamp when, reset is uncapped/resets/closing lid knob；When closing lid, it will first uncap/answer
Position/closing lid knob is rotated clockwise to capping position, and then long-pressing movement maintains button to closing in place, and audible-visual alarm lamp is reported
Alert, release movement maintains button, and cover conjunction is bright close to switch lamp in place, rotates/closing lid knob to intermediate reset position of uncapping/reset
It sets, audible-visual alarm lamp stop alarm, rotates clockwise loose lid/reset/tight lid knob to tight lid position, long-pressing movement maintains button
Be tightened to position to cover, audible-visual alarm lamp alarm, release movement maintains button, and it is bright close to switch lamp that cover is tightened to position, reset pine lid/
Reset/tight lid knob, audible-visual alarm lamp stop alarm；The local/remote switching push button may be implemented to the cover open-close
The long-range control and local control of operation；The power supply is connected with the cover, and does not share with the host computer or PLC；Institute
It states guard bar bolt to be connected with the relief valve, the close switch is located between the tank and cover and the dead-man's handle
Place；
It is described close to switch include: cover reach position, cover close in place, cover pine in place, cover is tightened to position, dead-man's handle reaches
Position, dead-man's handle close in place, guard bar bolt go out in place seven close to switch:
The electric control box introduces the electric control box, composition electricity by the electro connecting pressure gauge and close to the signal of switch
Gas safety interlocking, the signal received is sent into the host computer or PLC by connection by the electric control box makes it in group
State picture is shown.
2. Quick-opening safety interlocking device for pressure vessel according to claim 1, which is characterized in that the power supply is 24V
DC power supply.
3. Quick-opening safety interlocking device for pressure vessel according to claim 1, which is characterized in that the indicator light packet
It includes: having pressure indicator light and cover locking indicator light in tank, there is pressure indicator light to be connected with the inside of the tank in the tank, the tank
Cover locking indicator light is connected with the relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028217.2A CN106979330B (en) | 2016-01-18 | 2016-01-18 | Quick-opening safety interlocking device for pressure vessel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610028217.2A CN106979330B (en) | 2016-01-18 | 2016-01-18 | Quick-opening safety interlocking device for pressure vessel |
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| Publication Number | Publication Date |
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| CN106979330A CN106979330A (en) | 2017-07-25 |
| CN106979330B true CN106979330B (en) | 2019-10-11 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681635B (en) * | 2018-12-27 | 2020-03-27 | 安徽响水涧抽水蓄能有限公司 | Method for preventing pressure vessel manhole door from being mistakenly opened under pressure |
| CN114935007A (en) * | 2022-06-23 | 2022-08-23 | 江苏省特种设备安全监督检验研究院 | Pressure vessel quick-opening safety interlocking control method and device |
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| CN101619765A (en) * | 2009-08-03 | 2010-01-06 | 杭州荣达锅炉容器有限公司 | Control system and control method for intelligent interlock safe pressure vessel |
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| CN101865287A (en) * | 2010-06-11 | 2010-10-20 | 温州市龙强乳品机械厂 | Method and device for realizing safety interlocking of meshing-teeth quick-open pressure vessel |
| US8985646B2 (en) * | 2011-09-08 | 2015-03-24 | Marco Group International, Inc. | Pressure vessel safety lock apparatus |
| CN204874483U (en) * | 2015-08-10 | 2015-12-16 | 泰山恒信有限公司 | Safety interlock system |
| CN205331413U (en) * | 2016-01-18 | 2016-06-22 | 沈阳维科真空技术有限公司 | Quick -opening safety interlocking device for pressure vessel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672381Y (en) * | 2004-01-15 | 2005-01-19 | 钟剑星 | Safety interlinking device for pressure container quick open door |
| CN101619765A (en) * | 2009-08-03 | 2010-01-06 | 杭州荣达锅炉容器有限公司 | Control system and control method for intelligent interlock safe pressure vessel |
| CN201496531U (en) * | 2009-09-04 | 2010-06-02 | 常州锅炉有限公司 | Safe interlocking mechanism of quick opening pressure vessel |
| CN201539556U (en) * | 2009-10-12 | 2010-08-04 | 张家港市华菱医疗设备制造有限公司 | Safety interlocking device for fast-open pressure vessel |
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| US8985646B2 (en) * | 2011-09-08 | 2015-03-24 | Marco Group International, Inc. | Pressure vessel safety lock apparatus |
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| CN106979330A (en) | 2017-07-25 |
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