CN101603594B - Safety interlocking device for quick opening pressure vessel - Google Patents
Safety interlocking device for quick opening pressure vessel Download PDFInfo
- Publication number
- CN101603594B CN101603594B CN2009101006979A CN200910100697A CN101603594B CN 101603594 B CN101603594 B CN 101603594B CN 2009101006979 A CN2009101006979 A CN 2009101006979A CN 200910100697 A CN200910100697 A CN 200910100697A CN 101603594 B CN101603594 B CN 101603594B
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- stop lever
- safety
- baffle
- transformer
- quick opening
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Abstract
The invention discloses a safety interlocking device for a quick opening pressure vessel, which comprises a mechanical actuating mechanism. The device is characterized in that the mechanical actuating mechanism comprises two baffles arranged on a quick opening engagement volution and a start and stop lever for controlling the opening or closing of a safety exhaust valve; the two baffles are a first baffle and a second baffle respectively; the first baffle and the second baffle form a start and stop lever channel; a shaft pin is arranged above the start and stop lever channel, and is axially flicked or picked up under the driving of an electromagnet; a travel switch is arranged below the start and stop lever; a normally open contact of the travel switch is connected with an intermediate relay of an intake electromagnetic valve circuit; and a normally closed contact of the travel switch is connected with an intermediate relay of a quick opening motor control circuit. The device has the advantages that the device has simple structure and good operation coherence, increases the safety reliability of the safety interlocking device, and avoids the potential safety hazard caused by faulty manual operation.
Description
Technical field
The present invention relates to a kind of safety interlock, especially relate to a kind of safety interlocking device for quick opening pressure vessel.
Background technique
According to the requirement of " safe technology of pressure vessel supervision rules " 99 editions the 49th, the safety interlock device of quick actuating closure device of door-opening pressure vessel should possess following function: 1. can boost when quick operating valve reaches the predetermined position of closing the door.2. after the internal pressure of pressurized container discharged fully, safety interlock was thrown off, and can open quick operating valve.3. have the warning device synchronous with above-mentioned action.The safety interlock of the door-opening pressure vessel that dispatches from the factory at present generally can both satisfy above-mentioned requirements, but the method that realizes has nothing in common with each other.China Patent No. is that 200620135192.8 utility model patent discloses a kind of " pressure vessel of quick opening door mechanical type safety interlock ", it is characterized in that actuator is by housing (11), snubber (12), electromagnet (13), spring (14), pin (15) constitutes, snubber (12), electromagnet (13), spring (14), pin (15) is arranged on the inside of housing (11), a pin of the bottom adhesive of electromagnet (13) (15), the lower end of pin (15) can be inserted in the groove on the cover (9) by jar mouthful flange (10), pin (15) is connected with spring (14) with jar mouthful flange (a 10) outer wall, and snubber (12) installs in pin (15) one sides.The pin that utilization links to each other with electromagnet directly inserts or extracts the groove of cover and controls quick operating valve, and its structure is comparatively complicated, is easy to generate misoperation simultaneously, and reliability is poor.
Summary of the invention
Technical problem to be solved by this invention provides the high safety interlocking device for quick opening pressure vessel of a kind of safety reliability.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: a kind of safety interlocking device for quick opening pressure vessel, comprise mechanical actuating mechanism, it is characterized in that described mechanical actuating mechanism comprises two baffle plates that are provided with in the quick operating valve engagement volution and controls the start and stop lever that safety exhaust opens or closes, two baffle plates are respectively first baffle plate and second baffle, described first baffle plate and described second baffle form the start and stop lever passage, described start and stop lever passage top is provided with pivot pin, described pivot pin axially flicks or adhesive under the driving of electromagnet, the below of described start and stop lever is provided with position limit switch, the normally opened contact of position limit switch is connected with the auxiliary reclay in air inlet solenoid valve loop, the normally-closed contact of position limit switch is connected with the auxiliary reclay of quick operating valve electromotor control circuit
Under the state that start and stop lever is left behind, safety exhaust cuts out, and start and stop lever is arranged in described start and stop lever passage, and start and stop lever presses down the normally opened contact conducting that makes position limit switch;
Under the state that start and stop lever lifts, safety exhaust is opened, the normally-closed contact conducting of position limit switch;
Pivot pin flicks under the driving of electromagnet, and start and stop lever is sealed; Pivot pin adhesive under the driving of electromagnet, start and stop lever can be lifted.
It also includes control circuit, described control circuit comprises switch, transformer, pressure gauge with electric contact and time delay relay, described switch is connected on the end of a winding of described transformer, be in series with pressure gauge with electric contact and time delay relay successively on one end of the secondary winding of transformer, described magnet spool is arranged between the other end and time delay relay of transformer secondary winding.
Be parallel with the safety voltage tutorial light on the secondary winding of described transformer, safety alarm device be connected in parallel on the winding of described transformer after the normally closed switch of time delay relay is connected.
The neutral position of described start and stop lever is provided with dunnage.
Described control circuit is arranged in the control box, and described safety alarm device is arranged on the described control box, and described safety alarm device comprises warning light and siren.
Compared with prior art, the invention has the advantages that two baffle plates that are provided with in the quick operating valve engagement volution form the start and stop lever passage, set a stationary conduit to start and stop lever.Start and stop lever passage top is provided with pivot pin, and pivot pin axially flicks or adhesive under the driving of electromagnet.When quick operating valve engagement volution engagement, safe exhaust steam valve cuts out, and the solenoid actuated lower shaft pin flicks, and the start and stop lever that will be in the start and stop lever passage is sealed, and quick operating valve is closed extremely.This moment, the normally opened contact of position limit switch was switched on, and the auxiliary reclay of the air inlet solenoid valve that links to each other with normally opened contact is connected, and the air inlet solenoid valve just can be worked.In the time of electromagnetic actuation, start and stop lever can upwards lift, and safety exhaust is opened, and the normally-closed contact of position limit switch is switched on, and the auxiliary reclay of the quick operating valve electromotor control circuit that links to each other with normally-closed contact is connected, and quick operating valve can be opened.Said structure has guaranteed two functions of safety interlock, 1, door closes after death, and the air inlet solenoid valve just can be worked.2, after the gas emptying, quick operating valve just can be opened, and its advantage is simple in structure for this simultaneously, and the operation continuity is good, has increased the safety reliability of safety interlock, avoids the potential safety hazard that produces because of the mistake manual operation.
When electric contact pressure list index and zero-bit are connected, can drive time delay relay work, time delay relay is switched on the adhesive that drives electromagnet.This moment liftable start and stop lever, safety exhaust is opened, and then opens quick operating valve.Pressure gauge with electric contact shows when in the container pressure being arranged, and electromagnet can adhesive, can't lift start and stop lever, and quick operating valve can not be opened, and prevents generation of false action.The setting of pressure gauge with electric contact and time delay relay is when guaranteeing that pressure in the container is safe, just can make electromagnetic actuation.
The safety voltage tutorial light can show whether voltage is in normally, and when the switch on the safety interlock control box closed, security alarm lamp and siren be work just.When the normally-closed contact of time delay relay disconnected, security alarm lamp and siren quit work.
Description of drawings
Fig. 1 is structural representation of the present invention (one);
Fig. 2 is structural representation of the present invention (two);
Fig. 3 is control circuit figure of the present invention;
Fig. 4 is a position limit switch line graph of the present invention.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
1. safety interlocking device for quick opening pressure vessel, comprise mechanical actuating mechanism, it is characterized in that mechanical actuating mechanism comprises two baffle plates 2 that are provided with in the quick operating valve engagement volution 1 and controls the start and stop lever 4 that safety exhaust 3 opens or closes, two baffle plates 2 are respectively first baffle plate 21 and second baffle 22, first baffle plate 21 forms start and stop lever passage 5 with second baffle 22, start and stop lever passage 5 tops are provided with pivot pin 15, pivot pin 15 axially flicks or adhesive under the driving of electromagnet 6, the below of start and stop lever 4 is provided with position limit switch 7, the normally opened contact of position limit switch 7 is connected with the auxiliary reclay in air inlet solenoid valve loop, the normally-closed contact of position limit switch 7 is connected with the auxiliary reclay of quick operating valve electromotor control circuit
Under the state that start and stop lever 4 is left behind, safety exhaust 3 cuts out, and start and stop lever 4 is arranged in start and stop lever passage 5, and start and stop lever 4 presses down the normally opened contact conducting that makes position limit switch 7;
Under the state that start and stop lever 4 lifts, safety exhaust 3 is opened, the normally-closed contact conducting of position limit switch 7;
Pivot pin 15 flicks under the driving of electromagnet 6, and start and stop lever 4 is sealed; Pivot pin 15 adhesive under the driving of electromagnet 6, start and stop lever 4 can be lifted.
Control circuit comprises switch 8, transformer 9, pressure gauge with electric contact 10 and time delay relay 11, switch 8 is connected on the end of 9 windings of transformer, be in series with pressure gauge with electric contact 10 and time delay relay 11 on one end of the secondary winding of transformer 9 successively, the coil of electromagnet 6 is arranged between the other end and time delay relay 11 of transformer 9 secondary winding.Be parallel with safety voltage tutorial light 12 on the secondary winding of transformer 9, be parallel with security alarm lamp 13 on the winding of transformer 9.The neutral position of start and stop lever 4 is provided with dunnage 14.Control circuit is arranged in the control box, and security alarm lamp 13 is arranged on the control box.
The process of opening the door: close suction valve earlier, open outlet valve again, observe the pointer of pressure gauge with electric contact 10 then, when pointer during near zero-bit, open the switch 8 of safety interlock, security alarm lamp 13 flickers this moment, and sound siren are when the pointer of pressure gauge with electric contact 10 and zero-bit conducting, time delay relay 11 work, set time-delay 15 seconds, the normally opened contact of time delay relay 11 is switched on, and drives electromagnet 6 adhesives.The normally-closed contact of time delay relay 11 is opened, and security alarm lamp 13 and siren quit work.This moment liftable start and stop lever 4, safety exhaust 3 is opened, the spanner of pulling quick operating valve just can open the door, the switch of closed safe interlock, the whole process end of opening the door.Start and stop lever 4 also can adopt hydraulic pressure, pneumatic or electronic isotype.
The process of closing the door: under the situation of no foreign matter, material is pushed container in confirming tank body, open the switch 8 of safety interlock, electromagnet 6 is by adhesive at this moment, after quick operating valve is closed, and the start and stop lever 4 of can leaving behind.Close the then switch 8 of safety interlock, the control circuit conducting is opened electromagnet 6, and start and stop lever 4 is sealed, and the process of closing the door finishes.Because start and stop lever 4 is left behind, the auxiliary reclay in the normally opened contact of position limit switch 7 and air inlet solenoid valve loop is connected, and this moment, pressurized container just can normally move.After if start and stop lever 4 is left behind, the power supply that does not have timely closed safe interlock, then the pivot pin 15 with electromagnet 6 interlocks can not block start and stop lever 4, but meeting conducting admission solenoid valve, at this moment, as long as there is a little pressure to produce in the pressurized container, the pointer of pressure gauge with electric contact 10 not with the zero-bit conducting, the normally-closed contact of time delay relay 11 is in closed state, this moment, security alarm lamp 13 and siren will be reported to the police, can remind operator, the power supply of closed safe interlock makes the pivot pin 15 blockade start and stop levers 4 with electromagnet 6 interlocks.
Claims (4)
1. safety interlocking device for quick opening pressure vessel, comprise mechanical actuating mechanism, it is characterized in that described mechanical actuating mechanism comprises two baffle plates that are provided with in the quick operating valve engagement volution and controls the start and stop lever that safety exhaust opens or closes, two baffle plates are respectively first baffle plate and second baffle, described first baffle plate and described second baffle form the start and stop lever passage, described start and stop lever passage top is provided with pivot pin, described pivot pin axially flicks or adhesive under the driving of electromagnet, the below of described start and stop lever is provided with position limit switch, the normally opened contact of position limit switch is connected with the auxiliary reclay in air inlet solenoid valve loop, the normally-closed contact of position limit switch is connected with the auxiliary reclay of quick operating valve electromotor control circuit
Under the state that start and stop lever is left behind, safety exhaust cuts out, and start and stop lever is arranged in described start and stop lever passage, and start and stop lever presses down the normally opened contact conducting that makes position limit switch;
Under the state that start and stop lever lifts, safety exhaust is opened, the normally-closed contact conducting of position limit switch;
Pivot pin flicks under the driving of electromagnet, and start and stop lever is sealed; Pivot pin adhesive under the driving of electromagnet, start and stop lever can be lifted;
It also includes another control circuit, described another control circuit comprises switch, transformer, pressure gauge with electric contact and time delay relay, described switch is connected on the end of a winding of described transformer, be in series with pressure gauge with electric contact and time delay relay successively on one end of the secondary winding of transformer, described magnet spool is arranged between the other end and time delay relay of transformer secondary winding.
2. a kind of safety interlocking device for quick opening pressure vessel according to claim 1, it is characterized in that being parallel with the safety voltage tutorial light on the secondary winding of described transformer, safety alarm device be connected in parallel on the winding of described transformer after the normally closed switch of time delay relay is connected.
3. a kind of safety interlocking device for quick opening pressure vessel according to claim 1 is characterized in that the neutral position of described start and stop lever is provided with dunnage.
4. a kind of safety interlocking device for quick opening pressure vessel according to claim 2, it is characterized in that described another control circuit is arranged in the control box, described safety alarm device is arranged on the described control box, and described safety alarm device comprises warning light and siren.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101006979A CN101603594B (en) | 2009-07-17 | 2009-07-17 | Safety interlocking device for quick opening pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101006979A CN101603594B (en) | 2009-07-17 | 2009-07-17 | Safety interlocking device for quick opening pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101603594A CN101603594A (en) | 2009-12-16 |
| CN101603594B true CN101603594B (en) | 2011-04-20 |
Family
ID=41469444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101006979A Expired - Fee Related CN101603594B (en) | 2009-07-17 | 2009-07-17 | Safety interlocking device for quick opening pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101603594B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729322B (en) * | 2012-06-01 | 2014-03-05 | 江苏四方锅炉有限公司 | Hydraulic quick opening door device for still kettle |
| CN109140023A (en) * | 2018-09-28 | 2019-01-04 | 烟台大学 | A kind of valve and filter interlock for preventing watercraft engine room from intaking |
| CN111096573A (en) * | 2018-10-26 | 2020-05-05 | 青岛海尔特种电冰柜有限公司 | Wine cabinet and door opening and closing control method |
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2009
- 2009-07-17 CN CN2009101006979A patent/CN101603594B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101603594A (en) | 2009-12-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130717 |