CN204692565U - The safety interlock of autoclave still door - Google Patents
The safety interlock of autoclave still door Download PDFInfo
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- CN204692565U CN204692565U CN201520142009.6U CN201520142009U CN204692565U CN 204692565 U CN204692565 U CN 204692565U CN 201520142009 U CN201520142009 U CN 201520142009U CN 204692565 U CN204692565 U CN 204692565U
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- autoclave
- still door
- plc
- solenoid valve
- hydraulic cylinder
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Abstract
The utility model discloses a kind of safety interlock of autoclave still door, belong to pressurized container applied technical field.Comprise the PLC that scene temperature pressure transmitter is connected by control instrument; The signal output control terminal mouth of PLC connects admission controlling device, hydraulic station and hydraulic driving respectively for pressing system and control cabinet; The signal input port of admission controlling device feedback access PLC; Hydraulic station and hydraulic driving drive oil hydraulic cylinder for pressing system by connecting still door and rotating Controlling solenoid valve, the signal input port of oil hydraulic cylinder feedback access PLC; Control cabinet controls autoclave by control unit, the signal input port of autoclave feedback access PLC.The utility model achieves the automatic on-off of autoclave still door and the recloser of steam inlet device, easy to use, safe and reliable, makes the steam-cured system automation of autoclave, intellectuality, reduces human cost, improves Security, improves the quality of steam cured products.
Description
Technical field
The utility model relates to a kind of safety interlock of autoclave still door, belongs to pressurized container applied technical field.
Background technique
Autoclave is the visual plant adding the production of vapour brick, and effect uses the saturated vapor of certain pressure by autoclave kettle double-entry pipe equably access arrangement, and the brick embryo in still absorbs heat through steam press maintenance, converts the flyash brick of high strength to.
In the prior art, autoclave safety interlock is made up of electric control cubicle, hand speed reducer locking device, zero-pressure controller, still internal pressure transmitter, temperature in the kettle sensor, the outer temperature transducer of still, admission ball valve.Working procedure advances in still by institute's steaming and cultivating equipment, then manually the closedown of still door puts in place by the hand speed reducer of shake, control system judgement puts in place after signal, manually press " allowing the to fill vapour " button in control system, steam inlet valve is opened and fill vapour in still, and when still internal pressure is more than 6Kpa, signal is just delivered to control system by zero-pressure controller immediately, control system sends signal and makes the action of hand speed reducer locking device, by dead for still door lock.When end steam-cured in still, after starting steam discharge, when pressure is lower than 6Kpa, signal is reached control system by zero-pressure controller, sends " with no pressure in still " signal, and hand speed reducer locking device unlocks, and operator could rotate speed reducer handle and be opened by still door.Though this control mode can realize security interlocking protection, this control mode automaticity is low, operates and adds the labor intensity of workman, reduce manufacturing efficiency.
Model utility content
For above-mentioned prior art Problems existing, the utility model provides a kind of safety interlock of autoclave still door, the switch of still door and Interlock Status are all realized by oil hydraulic cylinder transmission, realize the automatic on-off of autoclave still door and the recloser of steam inlet device, easy to use, safe and reliable, make the steam-cured system automation of autoclave, intellectuality, reduce human cost, improve Security, improve the quality of steam cured products.
To achieve these goals, the safety interlock of this autoclave still door comprises the PLC that scene temperature pressure transmitter is connected by control instrument;
The signal output control terminal mouth of described PLC connects admission controlling device, hydraulic station and hydraulic driving respectively for pressing system and control cabinet;
The signal input port of described admission controlling device feedback access PLC;
Described hydraulic station and hydraulic driving drive oil hydraulic cylinder for pressing system by connecting still door and rotating Controlling solenoid valve, the signal input port of described oil hydraulic cylinder feedback access PLC;
Described control cabinet controls autoclave by control unit, the signal input port of described autoclave feedback access PLC.
Further, described still door and rotation Controlling solenoid valve comprise still door pass solenoid valve, enabling solenoid valve, revolve and close solenoid valve and solenoid valve of outwarding winding.
Further, described oil hydraulic cylinder comprises enabling oil hydraulic cylinder, rotating liquid cylinder pressure, safety pin oil hydraulic cylinder.
Further, described safety pin oil hydraulic cylinder enters by pin the open and close that control that solenoid valve and pin move back solenoid valve drives still door safety pin.
Further, in the circuit of described PLC, controlled the sound light alarming circuit of superpressure, overtemperature by auxiliary reclay, and alarm release circuit.
Compared with prior art, the safety interlock of this autoclave still door makes the switch of still door and Interlock Status all be realized by oil hydraulic cylinder transmission, and hydraulic pressure door-opening mechanism is made up of the oil hydraulic cylinder that opens the door, rotating liquid cylinder pressure, safety pin oil hydraulic cylinder and corresponding state proximity switch.Achieve the automatic on-off of autoclave still door and the recloser of steam inlet device, easy to use, safe and reliable, make the steam-cured system automation of autoclave, intellectuality, reduce human cost, improve Security, improve the quality of steam cured products.
Accompanying drawing explanation
Fig. 1 is control principle block diagram of the present utility model;
Fig. 2 is fundamental diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, the safety interlock of this autoclave still door comprises the PLC that scene temperature pressure transmitter is connected by control instrument;
The signal output control terminal mouth of described PLC connects admission controlling device, hydraulic station and hydraulic driving respectively for pressing system and control cabinet;
The signal input port of described admission controlling device feedback access PLC;
Described hydraulic station and hydraulic driving drive oil hydraulic cylinder for pressing system by connecting still door and rotating Controlling solenoid valve, the signal input port of described oil hydraulic cylinder feedback access PLC;
Described control cabinet controls autoclave by control unit, the signal input port of described autoclave feedback access PLC.
The state signal of site pressure, temperature and proximity switch reaches PLC, through PLC Logic judgment, sends corresponding control command, thus drives the action of corresponding actuator, realizes the automatic on-off of autoclave still door and the recloser of steam inlet device.
Further, described still door and rotation Controlling solenoid valve comprise still door pass solenoid valve, enabling solenoid valve, revolve and close solenoid valve and solenoid valve of outwarding winding.By the effect of each solenoid valve, coordinate corresponding proximity switch, realize the switch of still door, rotation.
Further, described oil hydraulic cylinder comprises enabling oil hydraulic cylinder, rotating liquid cylinder pressure, safety pin oil hydraulic cylinder.The open and close of the switch of still door, rotation and safety pin are realized by oil hydraulic cylinder.
Further, described safety pin oil hydraulic cylinder enters by pin the open and close that control that solenoid valve and pin move back solenoid valve drives still door safety pin.The open and close of still door safety pin are realized by the effect of solenoid valve, convenient and swift, safe and reliable.
Further, in the circuit of described PLC, controlled the sound light alarming circuit of superpressure, overtemperature by auxiliary reclay, and alarm release circuit.Significantly improve the operating security of autoclave.
The safety interlock of this autoclave still door is in use in auto state, and when needing to close, as shown in Figure 2, working procedure is as follows:
To be closed the door condition by PLC automatic decision, after satisfying condition, to close the door solenoid valves, still door is closed, after closedown puts in place, still door closure state tutorial light is bright, PLC monitors door-closing in-place signal after 5 seconds continuously, revolve pass solenoid valves, the position that still door rotary closing aligns to clamp teeth and kettle cover flange tooth, still door rotates pass and puts in place, tutorial light is bright, PLC monitors continuously and revolves pass and put signal in place after 5 seconds, sell into solenoid valves, the locked still door of safety pin, tutorial light is bright, now can carry out filling vapour operation, in still in boost process, when pressure is more than 6Kpa, signal is just delivered to control cabinet by pressure controller in control unit immediately, there is pressure tutorial light bright in still, as long as have pressure in still, safety pin can not remove chain state.
The safety interlock of this autoclave still door is under automatic condition, and when opening still door, as shown in Figure 2, working procedure is as follows:
After steam-cured process terminates, steam bleeding is carried out to autoclave, reduce the pressure in still, when pressure is lower than 6Kpa, has pressure tutorial light to extinguish, signal with no pressure is reached in PLC simultaneously, just can carry out out still door operation.
By PLC automatic decision door-opening condition, after satisfying condition, pin moves back solenoid valves, opens safe lock, and it is bright that pin falls back on a tutorial light; PLC monitors pin continuously and falls back on a signal after 5 seconds, to outward winding solenoid valves, the position that still door Unscrew staggers completely to clamp teeth and kettle cover flange tooth, still door rotates and reaches position, and tutorial light is bright, and PLC monitors continuously to outward winding and puts signal in place after 5 seconds, enabling solenoid valves, still door, under the effect of hydraulic system, is slowly opened, until still door is opened completely.
When in steam-cured process, pressure, temperature are greater than setting value, auxiliary reclay obtains electric adhesive and triggers audible-visual annunciator, gives the alarm, and reminds operator to note superpressure, overheating problem.After now operator should take corresponding measure, just can press " noise reduction " button, remove acoustooptic alarm signal.
Equipment carries out being in manual mode when overhauling or debug, and also demand fulfillment corresponding chain condition when adopting manually-operable, guarantees safety.
In sum, the safety interlock of this autoclave still door makes the switch of still door and Interlock Status all be realized by oil hydraulic cylinder transmission, and hydraulic pressure door-opening mechanism is made up of the oil hydraulic cylinder that opens the door, rotating liquid cylinder pressure, safety pin oil hydraulic cylinder and corresponding state proximity switch.Achieve the automatic on-off of autoclave still door and the recloser of steam inlet device, easy to use, safe and reliable, make the steam-cured system automation of autoclave, intellectuality, reduce human cost, improve Security, improve the quality of steam cured products.
Claims (5)
1. a safety interlock for autoclave still door, is characterized in that,
Comprise the PLC that scene temperature pressure transmitter is connected by control instrument;
The signal output control terminal mouth of described PLC connects admission controlling device, hydraulic station and hydraulic driving respectively for pressing system and control cabinet;
The signal input port of described admission controlling device feedback access PLC;
Described hydraulic station and hydraulic driving drive oil hydraulic cylinder for pressing system by connecting still door and rotating Controlling solenoid valve, the signal input port of described oil hydraulic cylinder feedback access PLC;
Described control cabinet controls autoclave by control unit, the signal input port of described autoclave feedback access PLC.
2. the safety interlock of a kind of autoclave still door according to claim 1, is characterized in that,
Described still door and rotation Controlling solenoid valve comprise still door and close solenoid valve, enabling solenoid valve, revolve and close solenoid valve and solenoid valve of outwarding winding.
3. the safety interlock of a kind of autoclave still door according to claim 1, is characterized in that,
Described oil hydraulic cylinder comprises enabling oil hydraulic cylinder, rotating liquid cylinder pressure, safety pin oil hydraulic cylinder.
4. the safety interlock of a kind of autoclave still door according to claim 3, is characterized in that,
Described safety pin oil hydraulic cylinder enters by pin the open and close that control that solenoid valve and pin move back solenoid valve drives still door safety pin.
5. the safety interlock of a kind of autoclave still door according to claim 1, is characterized in that,
Controlled the sound light alarming circuit of superpressure, overtemperature by auxiliary reclay in the circuit of described PLC, and alarm release circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520142009.6U CN204692565U (en) | 2015-03-12 | 2015-03-12 | The safety interlock of autoclave still door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520142009.6U CN204692565U (en) | 2015-03-12 | 2015-03-12 | The safety interlock of autoclave still door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692565U true CN204692565U (en) | 2015-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520142009.6U Active CN204692565U (en) | 2015-03-12 | 2015-03-12 | The safety interlock of autoclave still door |
Country Status (1)
| Country | Link |
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| CN (1) | CN204692565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678365A (en) * | 2017-02-10 | 2017-05-17 | 江门市众宏自动化设备有限公司 | Quick-opening safety interlocking control method and device for pressure vessel |
| CN114812928A (en) * | 2022-03-10 | 2022-07-29 | 江苏省特种设备安全监督检验研究院 | Quick-opening pressure vessel safety interlocking device monitoring system |
-
2015
- 2015-03-12 CN CN201520142009.6U patent/CN204692565U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678365A (en) * | 2017-02-10 | 2017-05-17 | 江门市众宏自动化设备有限公司 | Quick-opening safety interlocking control method and device for pressure vessel |
| CN106678365B (en) * | 2017-02-10 | 2018-09-28 | 江门市众宏自动化设备有限公司 | A kind of pressure vessel of quick opening door safety interlocking control method and device |
| CN114812928A (en) * | 2022-03-10 | 2022-07-29 | 江苏省特种设备安全监督检验研究院 | Quick-opening pressure vessel safety interlocking device monitoring system |
| CN114812928B (en) * | 2022-03-10 | 2023-06-02 | 江苏省特种设备安全监督检验研究院 | Monitoring system for safety interlocking device of quick-opening pressure vessel |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 221000 China Resources Industrial Park, Huaihai International Port District, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Sifang Clean Energy Equipment Manufacturing Co.,Ltd. Address before: 221007 China Resources Industrial Park, northern suburb of Xuzhou City, Jiangsu Province Patentee before: JIANGSU SIFANG BOILER Co.,Ltd. |