CN201475314U - Pressure vessel safety interlock device for opening door quickly - Google Patents
Pressure vessel safety interlock device for opening door quickly Download PDFInfo
- Publication number
- CN201475314U CN201475314U CN2009201902303U CN200920190230U CN201475314U CN 201475314 U CN201475314 U CN 201475314U CN 2009201902303 U CN2009201902303 U CN 2009201902303U CN 200920190230 U CN200920190230 U CN 200920190230U CN 201475314 U CN201475314 U CN 201475314U
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- stop lever
- safety
- control circuit
- pressure vessel
- electromagnet
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Abstract
The utility model discloses a pressure vessel safety interlock device for opening a door quickly, including a control circuit and a mechanical execution mechanism. The mechanical execution mechanism comprises two baffle plates arranged on a meshing volute for opening a door quickly and a start and stop lever with one end axially connected on a safety exhaust valve, wherein the two baffle plates are respectively a first baffle plate and a second baffle plate which form a channel of the start and stop lever; when the start and stop lever is laid down, the other end of the start and stop lever is positioned in the channel of the start and stop lever; a shaft pin linked with an electromagnet is arranged above the channel of the start and stop lever; 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 in an air inlet electromagnetic valve circuit and a normally closed contact thereof is connected with an intermediate relay of a motor control circuit for opening the door quickly; and the control circuit can cause the electromagnet to open or pull in. The safety interlock device has the following advantages: simple structure, good operation continuity, increased safe reliability of the safety interlock device and avoidance of hidden safety risks caused by faulty manual operation.
Description
Technical field
The utility model relates to a kind of safety interlock, especially relates 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 in the utility model provides the high safety interlocking device for quick opening pressure vessel of a kind of safety reliability.
The utility model 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 control circuit and mechanical actuating mechanism, described mechanical actuating mechanism comprises be coupling start and stop lever on safety exhaust of two baffle plates being provided with in the quick operating valve engagement volution and an end, 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, under the state that start and stop lever puts down, the start and stop lever the other end is arranged in described start and stop lever passage, above described start and stop lever passage, be provided with pivot pin with the electromagnet interlock, 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, and described control circuit can make electromagnet open or adhesive.
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 electromagnet 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, advantage of the present utility model is 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 the pivot pin with the electromagnet interlock, and electromagnet is connected with control circuit, and control circuit can make electromagnetic actuation or open.When quick operating valve engagement volution engagement, safe exhaust steam valve cuts out, and electromagnet is opened, 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 be upwards cocked, 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.Can open start and stop lever this moment, and 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 open 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 utility model (one);
Fig. 2 is structural representation of the present utility model (two);
Fig. 3 is control circuit figure of the present utility model;
Fig. 4 is a position limit switch line graph of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
A kind of safety interlocking device for quick opening pressure vessel, comprise control circuit and mechanical actuating mechanism, mechanical actuating mechanism comprises be coupling start and stop lever 4 on safety exhaust 3 of two baffle plates 2 being provided with in the quick operating valve engagement volution 1 and an end, 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, under the state that start and stop lever 4 puts down, start and stop lever 4 the other ends are arranged in start and stop lever passage 5, above start and stop lever passage 5, be provided with bearing pin 15 with electromagnet 6 interlocks, 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, and control circuit can make electromagnet 6 open or adhesive.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, 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.Can open start and stop lever 4 this moment, and safety exhaust 3 is opened, and the spanner of pulling quick operating valve just can open the door, the switch of closed safe interlock, and the whole process of opening the door finishes.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 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 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 (5)
1. safety interlocking device for quick opening pressure vessel, comprise control circuit and mechanical actuating mechanism, it is characterized in that described mechanical actuating mechanism comprises be coupling start and stop lever on safety exhaust of two baffle plates being provided with in the quick operating valve engagement volution and an end, 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, under the state that start and stop lever puts down, the start and stop lever the other end is arranged in described start and stop lever passage, above described start and stop lever passage, be provided with pivot pin with the electromagnet interlock, 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, and described control circuit can make electromagnet open or adhesive.
2. a kind of safety interlocking device for quick opening pressure vessel according to claim 1, it is characterized in that 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 electromagnet is arranged between the other end and time delay relay of transformer secondary winding.
3. a kind of safety interlocking device for quick opening pressure vessel according to claim 2, 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.
4. 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.
5. a kind of safety interlocking device for quick opening pressure vessel according to claim 3, it is characterized in that described 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 |
|---|---|---|---|
| CN2009201902303U CN201475314U (en) | 2009-08-03 | 2009-08-03 | Pressure vessel safety interlock device for opening door quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201902303U CN201475314U (en) | 2009-08-03 | 2009-08-03 | Pressure vessel safety interlock device for opening door quickly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475314U true CN201475314U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201902303U Expired - Fee Related CN201475314U (en) | 2009-08-03 | 2009-08-03 | Pressure vessel safety interlock device for opening door quickly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878291A (en) * | 2012-08-17 | 2013-01-16 | 常州市万象化工机械有限公司 | Integrally inlaid half-ring-connection quick door-opening device |
| CN105768854A (en) * | 2014-12-23 | 2016-07-20 | 广东鼎燊科技有限公司 | Multi-stage combined protection steam cabinet and multi-stage combined protection method |
-
2009
- 2009-08-03 CN CN2009201902303U patent/CN201475314U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878291A (en) * | 2012-08-17 | 2013-01-16 | 常州市万象化工机械有限公司 | Integrally inlaid half-ring-connection quick door-opening device |
| CN102878291B (en) * | 2012-08-17 | 2015-08-26 | 常州市万象化工机械有限公司 | The quick-opening device that embed wholly semi-ring connects |
| CN105768854A (en) * | 2014-12-23 | 2016-07-20 | 广东鼎燊科技有限公司 | Multi-stage combined protection steam cabinet and multi-stage combined protection method |
| CN105768854B (en) * | 2014-12-23 | 2018-07-27 | 广东鼎燊云厨科技股份有限公司 | A kind of multi-stage combination protection steamer and multi-stage combination guard method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100519 Termination date: 20110803 |