CN201526481U - Quick-closing and self-protecting control system for smoke machine - Google Patents
Quick-closing and self-protecting control system for smoke machine Download PDFInfo
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- CN201526481U CN201526481U CN2009201424227U CN200920142422U CN201526481U CN 201526481 U CN201526481 U CN 201526481U CN 2009201424227 U CN2009201424227 U CN 2009201424227U CN 200920142422 U CN200920142422 U CN 200920142422U CN 201526481 U CN201526481 U CN 201526481U
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Abstract
The utility model relates to a quick-closing and self-protecting control system for a smoke machine, which is composed of a control system, a hydraulic system and an actuating mechanism. The hydraulic system comprises a motor D, an oil pump P, an overflow valve AF1, a filter L1, a manually operated valve SF2 and a fuel tank. The utility model settles a problem of quick switching-off, effectively protects the set safety, and has the characteristics of short closing time, high speed, no easy obstruction of oil-way, high control precision, strong interference resistance, simple and reliable operation. The safe operation of a power generation set on the smoke machine can be ensured. The quick-closing and self-protecting control system for a smoke machine is widely applied for the quick-closing control system for butterfly valve of smoke machine in industries of petroleum, chemical industry and metallurgy.
Description
Technical field
The utility model relates to a kind of cigarette machine speed and closes the self-insurance control system.
Background technique
The power generation system unit cigarette machine control system of using in the large enterprises such as present domestic petrochemical industry, electric power, metallurgy mainly relies on from external import, but costs an arm and a leg, and uses maintenance extremely inconvenient.And the most electrichydraulic control of existing cigarette machine control system mechanism is jet pipe servo valve, requires high to the work oil cleanliness.
Summary of the invention
Its purpose of the utility model just is to provide a kind of cigarette machine speed to close the self-insurance control system, has the shut-in time weak point, and speed is fast, and oil circuit is difficult for stopping up, the control accuracy height, and antijamming capability is strong, and the characteristics that operation is simple and reliable can be guaranteed the safe operation of cigarette machine generator set.
The technological scheme that realizes above-mentioned purpose and take comprises, by control system, hydraulic system and actuator, hydraulic system comprises hydraulic control module, described HYDRAULIC CONTROL SYSTEM valve BLF is an electro-hydraulic proportional valve, described hydraulic system also comprises turn-offs module and actuator, described shutoff module comprises quick-closing valve DV2, DV4, pressure controlled valve YV5, YV6, described actuator comprises two interlock single shaft servo-cylinder GA, GB, the output shaft of oil cylinder connects butterfly valve and synchronous rotating valve level sensor JC by shifting fork mechanism, quick-closing valve DV2, DV4 series connection back output connects pressure controlled valve YV5, YV6, pressure controlled valve YV5 exports one the tunnel and connects servo-cylinder GB, one the tunnel connects hydraulic control module output, pressure controlled valve YV6 exports one the tunnel and connects servo-cylinder GA, one the tunnel connects hydraulic control module output, and described control system comprises programmable controller PLC system CPU 224, A/D changes EM222, D/A changes EM235.
Compared with prior art this device has the following advantages.
Owing to adopted proportional valve control, the intelligent digital controller, the technology of digital control module and hydraulic module, control software is according to the establishment of real work flow process and have pid control function, thereby has the shut-in time weak point, speed is fast, oil circuit is difficult for stopping up, the control accuracy height, and antijamming capability is strong, the characteristics that operation is simple and reliable can be guaranteed the safe operation of cigarette machine generator set.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing 1 is this apparatus control system principle Block Diagram;
Accompanying drawing 2 is this device hydraulic system principle figure.
Embodiment
Embodiment
The present embodiment partly is made up of control section and hydraulic system.
By control system, hydraulic system and actuator form, hydraulic system comprises hydraulic control module, as shown in Figure 2, described HYDRAULIC CONTROL SYSTEM valve BLF is an electro-hydraulic proportional valve, described hydraulic system also comprises turn-offs module and actuator, described shutoff module comprises quick-closing valve DV2, DV4, pressure controlled valve YV5, YV6, described actuator comprises two interlock single shaft servo-cylinder GA, GB, the output shaft of oil cylinder connects butterfly valve and synchronous rotating valve level sensor JC by shifting fork mechanism, quick-closing valve DV2, DV4 series connection back output connects pressure controlled valve YV5, YV6, pressure controlled valve YV5 exports one the tunnel and connects servo-cylinder GB, one the tunnel connects hydraulic control module output, pressure controlled valve YV6 exports one the tunnel and connects servo-cylinder GA, one the tunnel connects hydraulic control module output, and described control system comprises programmable controller PLC system CPU 224, A/D changes EM222, D/A changes EM235.
Described hydraulic system also comprises working state changing valve SF3, and connects the emergent control system of being made up of control valve SF4 and hand pump SB.
As shown in Figure 1, the input port X1 of described control system programmable controller CPU224 connects the warm high signal WJ 33# line of oil, input end X2 connects liquid level low signal YJ 34# line, X3 welding system pressure inverting signal P1 25# line, X4 connects scene/emergent switching signal P1 38# line, X5 connects speed and closes signal J3 41# line, programmable controller CPU224 output terminal Y1 connects automatic mode tutorial light 52# line, Y2 connects work on the spot tutorial light 51# line, Y3 scoops out anxious working station indicator 50# line, Y4 connects selector valve DV 162# line, Y5 connects unloading valve DV363# line, Y6 connects quick-closing valve DV277# line, Y7 connects quick-closing valve DV478# line, EM222 terminal 54# line meets input signal SP disappearance lock-bit tutorial light L1, the 55# line meets feedback signal disappearance tutorial light L2, the 57# line meets overproof tutorial light L3, the 58# line meets the warm high tutorial light L4 of oil, the 59# line meets the low tutorial light L5 of liquid level, the 61# line meets motor dead electricity tutorial light L6, the terminal 17# of A/D conversion EM222, the 18# line meets input signal SP display device XQ1 and the control signal 4-20mA of control room, terminal 19#, the 20# line meets valve position signal PV display device XQ2 and angular displacement sensor output signal 4-20mA, D/A conversion EM235 terminal 27#, the 28# line meets digital power amplifier SF, the 29# of digital power amplifier SF and 30# line, 31# and 32# line connect two coils of Proportional valve BLF respectively, the alternating current 220V power supply is received switch power input end 11 and 12, power supply output DC24V voltage, insulating power supply DC/DC, respectively the DC24V voltage transformation is become DC5V voltage with DC/DC2, supply with display device XQ1 and XQ2 power supply.
The maximum output voltage of described Proportional valve BLF is DC 12V, 1.8A.
Adopt CPU, A/D, D/A module, press input signal linear scale control ratio valve coil electric current, to realize proportional control hydrovalve.When operating mode appears meeting an urgent need in power generation system; control system makes by oil circuit control that working oil enters fuel tank rapidly in the oil cylinder; can be in≤0.5 second time the butterfly valve of quick closedown flue gas turbine expander entrance pipe, thereby protect unit safety effectively, make lives and properties avoid loss.
Actuator is made up of two interlock single shaft servo-cylinders and shutoff hydraulic module.The output shaft of oil cylinder drags the butterfly valve opening and closing by shifting fork mechanism, synchronous rotating valve level sensor, produce and the corresponding 4-20mA valve of actual valve position number, this signal and control room 4-20mA signal are sent into programmable controller A/D conversion EM222 and are compared, and after carrying out the PID computing, digital power amplifier is delivered in output, the work of control ratio valve is moved oil cylinder piston and then is driven valve position sensor, change its output signal, make valve position signal follow input signal and change, constitute a closed loop control system.
When operating mode takes place to meet an urgent need in cigarette machine system, shutdown signal is sent in the control room, after control system receives the shutdown signal of sending in the control room, make and close solenoid valve DV2, DV4 and get electric work, oil circuit and fuel tank are connected, pressure controlled valve YV5 and YV6 are opened, make the oil of oil cylinder GB be back to fuel tank fast, and then close the machine butterfly valve of giving up smoking fast, ensure that cigarette machine power generating system unit safety is reliable.
Technical order:
1. cigarette machine butterfly valve is from 0 ° to 90 °, working time≤3.2S
Butterfly valve is quick closedown time≤0.5S from 70 ° to 0 °
2. control accuracy 0.2%-0.3%
3. export nominal torque 〉=10000Nm
Output peak torque 〉=35000Nm
4. hydraulic system working pressure: 〉=20Mpa
Hydraulic work system flow: 17L/min
Working procedure
Control room input 4-20mA signal is delivered to programmable controller, and No. 17, No. 18 line caps of analog amount expansion target range EM235 are delivered to input signal SP display device XQ1 simultaneously and shown input signal values.Valve position signal converts the actual displacement amount electrical signal of 4-20mA to by angular displacement sensor, delivers to 19, No. 20 line caps of EM235, delivers to valve position PV display device XQ2 simultaneously and shows the valve position signal value.The SP signal is with after the PV signal is compared, error signal is carried out the PID computing in PLC, at 27, No. 28 line cap output ± 10V voltages of simulation expansion module, supply with digital power amplifier SF, digital power amplifier output terminal 29 and No. 30 lines, 31 and No. 32 the line maximum can be exported DC12V, 1.8A voltage to two coils of Proportional valve.The proportional valve control oil cylinder piston moves, and then controls controlled valve events.Meanwhile angular displacement sensor detects the actual displacement amount, converts displacement amount to the 4-20mA electrical signal of linear ratio with it by sensor again, and this signal compares with the 4-20mA input signal in control room again, constitutes a position closed loop control system.
Claims (4)
1. a cigarette machine speed closes the self-insurance control system, by control system, hydraulic system and actuator form, hydraulic system comprises hydraulic control module, it is characterized in that, described HYDRAULIC CONTROL SYSTEM valve BLF is an electro-hydraulic proportional valve, described hydraulic system also comprises turn-offs module and actuator, described shutoff module comprises quick-closing valve DV2, DV4, pressure controlled valve YV5, YV6, described actuator comprises two interlock single shaft servo-cylinder GA, GB, the output shaft of oil cylinder connects butterfly valve and synchronous rotating valve level sensor JC by shifting fork mechanism, quick-closing valve DV2, DV4 series connection back output connects pressure controlled valve YV5, YV6, pressure controlled valve YV5 exports one the tunnel and connects servo-cylinder GB, one the tunnel connects hydraulic control module output, pressure controlled valve YV6 exports one the tunnel and connects servo-cylinder GA, one the tunnel connects hydraulic control module output, and described control system comprises programmable controller PLC system CPU 224, A/D changes EM222, D/A changes EM235.
2. a kind of cigarette machine speed according to claim 1 closes the self-insurance control system, it is characterized in that described hydraulic system also comprises working state changing valve SF3, and connects the emergent control system of being made up of control valve SF4 and hand pump SB.
3. a kind of cigarette machine speed according to claim 1 closes the self-insurance control system, it is characterized in that, the input port X1 of described control system programmable controller CPU224 connects the warm high signal WJ 33# line of oil, input end X2 connects liquid level low signal YJ 34# line, X3 welding system pressure inverting signal P1 25# line, X4 connects scene/emergent switching signal P1 38# line, X5 connects speed and closes signal J3 41# line, programmable controller CPU224 output terminal Y1 connects automatic mode tutorial light 52# line, Y2 connects work on the spot tutorial light 51# line, Y3 scoops out anxious working station indicator 50# line, Y4 connects selector valve DV1 62# line, Y5 connects unloading valve DV3 63# line, Y6 connects quick-closing valve DV277# line, Y7 connects quick-closing valve DV478# line, EM222 terminal 54# line meets input signal SP disappearance lock-bit tutorial light L1, the 55# line meets feedback signal disappearance tutorial light L2, the 57# line meets overproof tutorial light L3, the 58# line meets the warm high tutorial light L4 of oil, the 59# line meets the low tutorial light L5 of liquid level, the 61# line meets motor dead electricity tutorial light L6, the terminal 17# of A/D conversion EM222, the 18# line meets input signal SP display device XQ1 and the control signal 4-20mA of control room, terminal 19#, the 20# line meets valve position signal PV display device XQ2 and angular displacement sensor output signal 4-20mA, D/A conversion EM235 terminal 27#, the 28# line meets digital power amplifier SF, the 29# of digital power amplifier SF and 30# line, 31# and 32# line connect two coils of Proportional valve BLF respectively, the alternating current 220V power supply is received switch power input end 11 and 12, power supply output DC24V voltage, insulating power supply DC/DC, respectively the DC24V voltage transformation is become DC5V voltage with DC/DC2, supply with display device XQ1 and XQ2 power supply.
4. a kind of cigarette machine speed according to claim 1 closes the self-insurance control system, it is characterized in that the maximum output voltage of described Proportional valve BLF is DC12V, 1.8A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201424227U CN201526481U (en) | 2009-04-17 | 2009-04-17 | Quick-closing and self-protecting control system for smoke machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201424227U CN201526481U (en) | 2009-04-17 | 2009-04-17 | Quick-closing and self-protecting control system for smoke machine |
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| Publication Number | Publication Date |
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| CN201526481U true CN201526481U (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201424227U Expired - Lifetime CN201526481U (en) | 2009-04-17 | 2009-04-17 | Quick-closing and self-protecting control system for smoke machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628520A (en) * | 2012-04-25 | 2012-08-08 | 九江市环球科技开发有限公司 | Miniature electrical liquid controller without tank |
| CN104235109A (en) * | 2014-09-02 | 2014-12-24 | 九江环球科技股份有限公司 | Servo closed-loop electro-hydraulic proportional control device for axial flow compressor |
-
2009
- 2009-04-17 CN CN2009201424227U patent/CN201526481U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628520A (en) * | 2012-04-25 | 2012-08-08 | 九江市环球科技开发有限公司 | Miniature electrical liquid controller without tank |
| CN104235109A (en) * | 2014-09-02 | 2014-12-24 | 九江环球科技股份有限公司 | Servo closed-loop electro-hydraulic proportional control device for axial flow compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIUJIANG HUANQIU SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIUJIANG HUANQIU SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 332000 No. 96 Lianhua Road, Mount Lu District, Jiangxi, Jiujiang Patentee after: JIUJIANG HUANQIU SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 332000 No. 96 Lianhua Road, Mount Lu District, Jiangxi, Jiujiang Patentee before: Jiujiang Huanqiu Science and Technology Development Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20100714 |
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| CX01 | Expiry of patent term |