CN103885470B - A kind of high pressure releasing pressure automatically system - Google Patents
A kind of high pressure releasing pressure automatically system Download PDFInfo
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- CN103885470B CN103885470B CN201210555735.1A CN201210555735A CN103885470B CN 103885470 B CN103885470 B CN 103885470B CN 201210555735 A CN201210555735 A CN 201210555735A CN 103885470 B CN103885470 B CN 103885470B
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- pressure
- circuit
- display instrument
- reverse buffer
- instrument table
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Abstract
The present invention discloses a kind of high pressure releasing pressure automatically system, and the system includes：Pressure transmitter；The pressure display instrument table being connected with pressure vessel by pressure transmitter；The feedback signal for receiving pressure display instrument table negates circuit；The strong optical circuit for controlling can be carried out to the output for negating circuit；Reception negates the drive circuit of circuit signal；Input termination drive circuit, can be to the electricity of pressure vessel pressure release after conducting（Gas）Movable valve.The present invention, come the switch of control valve, sets pressure, with regard to self-relieving effect by the pressure change in pressure vessel once playing pressure vessel and exceeding.And can use other needs the self-relieving device of high pressure.Also have compact conformation compact, it is low-cost, it is safe and reliable, the features such as convenient and swift.
Description
Technical field
The present invention relates to laser equipment control system, a kind of specifically a kind of high pressure automatic leakage with feedback control
Pressure system.
Background technology
Full gas phase iodine laser (AGIL, all gas-phases iodine laser) is a kind of based on NCl (a)-I biography energy
New iodine laser, its technology path is as follows：
F+DCl->DF+Cl
Cl+HN3->HCl+N3
Cl+N3->NCl(a)+N2
NCl(a)+I->NCl(X)+I*
I*+hv(1315nm)->I+2hv(1315nm)
From the nineties in last century till now, AGIL has gone through the continuous flow enhancement of imagination, pulse light extraction, discharge scheme
Test, the continuous stream light extraction of discharge scheme, the continuous stream of discharge scheme are tentatively amplified and burning drives the conceptual phases such as trial, are taken
Obtained and be in progress faster.The optimum working pressure of AGIL is 0.5KPA or so, if being far above this pressure, system work will not
Stabilization.Meanwhile, if there is pressure higher than the pressure that optical cavity is born, dangerous situation just occurs.Therefore need to build a set of
High pressure releasing pressure automatically system, once to reach cavity pressure exception, pressure relief valve is automatically opened up, optical cavity starts the purpose of pressure release.
Simultaneously the device can extensively using with various chemical lasers (such as " HF lasers " etc.).
The content of the invention
In order to overcome above-mentioned deficiency, it is an object of the present invention to provide a kind of high pressure releasing pressure automatically that a kind has feedback control
System.Once playing pressure vessel exceedes setting pressure, with regard to self-relieving effect.
To realize the purpose of the present invention, concrete technical scheme includes：
A kind of high pressure releasing pressure automatically system, for pressure vessel,
Pressure display instrument table, pressure transmitter, negate circuit；Electrically operated valve is provided with pressure vessel；
Pressure transmitter is provided with the pressure tap of pressure vessel, pressure transmitter leads to the binding post of pressure display instrument table
Signal shielding line is crossed to be connected；Pressure display instrument table be used for pressure vessel pressure show and pressure feedback signal offer；
Circuit is negated, circuit is negated and is connected with pressure display instrument table feedback output end, receive the feedback of pressure display instrument table
Signal, negates to feedback signal output signal, exports CMOS low and high levels；
Solid-state relay is switched, and is connected with the output end for negating circuit, and reception negates the output signal of circuit；
The output end of solid-state relay switch is connected with electrically operated valve；
When pressure of the pressure in pressure vessel higher than the setting of pressure display instrument table, the feedback output of pressure display instrument table is low
Level signal, high level signal is changed into through negating negating for circuit, is switched by negating circuit output to solid-state relay, is made solid
State relay switch obtains circuit turn-on, and electrically operated valve is opened, and pressure release is carried out to pressure vessel；
When pressure of the pressure in pressure vessel less than the setting of pressure display instrument table, the feedback output of pressure display instrument table is high
Level signal, low level signal is changed into through negating negating for circuit, is switched by negating circuit output to solid-state relay, is made solid
State relay switching circuit disconnects, and electrically operated valve is automatically switched off.
Using reverse buffer and MOSFET circuit realirations, the reverse buffer includes reversely buffering to the circuit that negates
Device U1A, reverse buffer U1B, reverse buffer U1C, reverse buffer U1D, reverse buffer U1E, reverse buffer U1F,
Wherein reverse buffer U1F, reverse buffer U1B, reverse buffer U1C, reverse buffer U1D, reverse buffer U1E are in parallel
Composition reverse buffer group a, input pin of reverse buffer U1A is sampled to feedback signal, and output signal is by an output
Pin is connected with the input pin of reaction buffer group and negate again, and output signal is connected to G grades of MOSFET circuits；MOSFET circuits
D grades as negating output.
Solid-state relay switch and the connection circuit negated between circuit are provided with a switch,
D grades that an end is connected to MOSFET circuits is switched, another solid-state relay that terminates to is switched and is switched low voltage control end
Positive input terminal；It act as：Input before system operation to solid-state relay switch (5) carries out pressure control, it is ensured that driving is opened
Pass is not turned on, and equivalent to wire during system operation.
Electrically operated valve supply voltage is 220VAC, and it is connected with the 220VAC of the control switched through solid-state relay.
The electrically operated valve can be magnetic valve, or electromagnetism-gas-driving valve.
Electronic circuit board is made, decision circuitry and drive circuit are welded thereon.Then wiring board, power supply and its pressure
Power display instrument rational deployment is fabricated to instrument in the box of 800 × 600 × 400mm.Pressure inverting is connected with binding post
Device and test instrumentation.Its principle assumption diagram is as shown in Figure 1.
The beneficial effects of the invention are as follows：
1st, the present invention can quickly realize that pressure relief valve is opened by pressure display instrument table feedback control, can quickly process
The abnormal conditions of cavity pressure, it is ensured that the safety of cavity system.
2nd, during the present invention is for full gas chemistry laser and its HF lasers, can not only be realized a little with safe and reliable
Fire, moreover it is possible to effective saving gas in testing.The technological invention compact conformation is compact, low-cost, time saving power saving, convenient fast
It is prompt.
Brief description of the drawings
Fig. 1 is system architecture diagram of the invention.
Fig. 2 is to negate the circuit theory diagrams of circuit in Fig. 1.
Wherein reference is respectively, 1- pressure transmitters, 2- pressure display instrument tables, and 3- negates circuit, and 4- switches, 5- is solid
State relay switch, 6- electrically operated valves, 7- pressure vessels.
Specific embodiment
Embodiment 1
As shown in figure 1, structure of the present invention includes：
Pressure display instrument table, pressure transmitter, negate circuit；Electrically operated valve is provided with pressure vessel；
Pressure transmitter is provided with the pressure tap of pressure vessel, pressure transmitter leads to the binding post of pressure display instrument table
Signal shielding line is crossed to be connected；Pressure display instrument table be used for pressure vessel pressure show and pressure feedback signal offer；
Circuit is negated, circuit is negated and is connected with pressure display instrument table feedback output end, receive the feedback of pressure display instrument table
Signal, negates to feedback signal output signal, exports CMOS low and high levels；
Solid-state relay is switched, and is connected with the output end for negating circuit, and connection negates the output signal of circuit.
The output end of solid-state relay switch is connected with electrically operated valve, when solid-state relay switch circuit turn-on when, it is electric
Movable valve is opened, and pressure release is carried out to pressure vessel.
When pressure of the pressure in pressure vessel less than the setting of pressure display instrument table, electrically operated valve is automatically switched off.
The supply voltage of electrically operated valve 6 is 220VAC, and it is connected with the 220VAC of the control switched through solid-state relay.
Pressure display instrument table with feedback output, Japanese conduction company SR93 pressure display instrument tables；
As shown in Fig. 2 the circuit that negates reversely is buffered using " reverse buffer " and " power MOSFET " circuit realiration
One input pin of device (U1) is sampled to feedback signal, and output signal is by an output pin other several group in parallel with (U1)
Input pin series connection is negated again, and output signal is connected to G grades of MOSFET circuits；D grades of conduct of MOSFET circuits negates output.
One switch, D grades of its one end ground connection MOSFET circuits, it act as：
Input before system operation to solid-state relay switch carries out pressure control, it is ensured that driving switch is not turned on, and is
Equivalent to wire during system operation.
The course of work of system is as follows：
1 switches on power.
1 presses switch.
2 set upper limit vent pressure by pressure display instrument table.
3 when system pressure less than setting pressure when system without any reaction.
4 when system pressure is higher than setting pressure, and pressure relief valve is automatically turned on.Guiding pressure is closed less than setting, valve
Close.
Claims (3)
1. a kind of high pressure releasing pressure automatically system, for pressure vessel, it is characterised in that including：
Pressure display instrument table (2), pressure transmitter (1), negate circuit；Electrically operated valve (6) is provided with pressure vessel；
Pressure transmitter (1), the wiring of pressure transmitter (1) and pressure display instrument table (2) are provided with the pressure tap of pressure vessel
Terminal is connected by signal shielding line；Pressure display instrument table (2) shows for the pressure of pressure vessel and pressure feedback signal
There is provided；
Circuit (3) is negated, circuit (3) is negated and is connected with pressure display instrument table (2) feedback output end, receive pressure display instrument table
(2) feedback signal, negates to feedback signal output signal, exports CMOS low and high levels；
Solid-state relay switchs (5), is connected with the output end for negating circuit (3), and reception negates the output signal of circuit (3)；
The output end of solid-state relay switch (5) is connected with electrically operated valve (6)；
When pressure of the pressure in pressure vessel (7) higher than pressure display instrument table (2) setting, pressure display instrument table (2) feedback
Output low level signal, be changed into high level signal through negating negating for circuit (3), by negate circuit (3) output to solid-state after
Electric switch (5), makes solid-state relay switch (5) and obtains circuit turn-on, and electrically operated valve (6) is opened, pressure vessel (7) is let out
Pressure；
When pressure of the pressure in pressure vessel (7) less than pressure display instrument table (2) setting, pressure display instrument table (2) feedback
Output high level signal, be changed into low level signal through negating negating for circuit (3), by negate circuit (3) output to solid-state after
Electric switch (5), makes solid-state relay switch (5) circuit and disconnects, and electrically operated valve (6) is automatically switched off；
Using reverse buffer and MOSFET circuit realirations, the reverse buffer includes reverse buffer to the circuit that negates
U1A, reverse buffer U1B, reverse buffer U1C, reverse buffer U1D, reverse buffer U1E, reverse buffer U1F, its
Middle reverse buffer U1F, reverse buffer U1B, reverse buffer U1C, reverse buffer U1D, reverse buffer U1E and joint group
Into reverse buffer group, an input pin of reverse buffer U1A is sampled to feedback signal, and output signal passes through an output pin
Connected with the input pin of reaction buffer group and negate again, output signal is connected to G grades of MOSFET circuits；MOSFET circuits
D grades of conduct negates output.
2. high pressure releasing pressure automatically system according to claim 1, it is characterised in that：
Electrically operated valve (6) supply voltage is 220VAC, and it is connected with the 220VAC of the control that (5) are switched through solid-state relay.
3. high pressure releasing pressure automatically system according to claim 1 and 2, it is characterised in that：
The electrically operated valve is electromagnetism-gas-driving valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555735.1A CN103885470B (en) | 2012-12-19 | 2012-12-19 | A kind of high pressure releasing pressure automatically system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555735.1A CN103885470B (en) | 2012-12-19 | 2012-12-19 | A kind of high pressure releasing pressure automatically system |
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| CN103885470A CN103885470A (en) | 2014-06-25 |
| CN103885470B true CN103885470B (en) | 2017-05-31 |
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| CN201210555735.1A Active CN103885470B (en) | 2012-12-19 | 2012-12-19 | A kind of high pressure releasing pressure automatically system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716347A (en) * | 2014-12-03 | 2016-06-29 | 中国航空工业集团公司航空动力控制系统研究所 | Liquid nitrogen low-temperature box |
| CN107648781A (en) * | 2017-10-23 | 2018-02-02 | 成都众山科技有限公司 | Pneumatic fire-extinguishing device with pressure alarm function |
| CN107802975A (en) * | 2017-10-23 | 2018-03-16 | 成都众山科技有限公司 | Fire extinguishing gas tank with superpressure processing function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080720A (en) * | 1992-06-23 | 1994-01-12 | 核工业理化工程研究院 | Laser cooling water pressure shows and warning system automatically |
| JPH1065838A (en) * | 1996-08-15 | 1998-03-06 | Nec Corp | Subscriber circuit |
| CN2601351Y (en) * | 2003-01-13 | 2004-01-28 | 陈国庆 | Power failure emergency lamp with fuel gas warning device |
| DE102004052581A1 (en) * | 2004-10-29 | 2006-05-04 | Advanced Micro Devices, Inc., Sunnyvale | CMOS gate structure having a pre-doped semiconductor gate material with improved uniformity of dopant distribution and methods of fabricating the structure |
| CN201037978Y (en) * | 2007-06-02 | 2008-03-19 | 山西乡镇企业焦炭供销有限责任公司 | Alarming top light on taxi roof |
| CN201156726Y (en) * | 2008-02-03 | 2008-11-26 | 深圳艾科创新微电子有限公司 | CMOS delay comparator with threshold adjustable |
| CN101425802A (en) * | 2008-11-17 | 2009-05-06 | 北大方正集团有限公司 | Signal conversion apparatus and method |
-
2012
- 2012-12-19 CN CN201210555735.1A patent/CN103885470B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080720A (en) * | 1992-06-23 | 1994-01-12 | 核工业理化工程研究院 | Laser cooling water pressure shows and warning system automatically |
| JPH1065838A (en) * | 1996-08-15 | 1998-03-06 | Nec Corp | Subscriber circuit |
| CN2601351Y (en) * | 2003-01-13 | 2004-01-28 | 陈国庆 | Power failure emergency lamp with fuel gas warning device |
| DE102004052581A1 (en) * | 2004-10-29 | 2006-05-04 | Advanced Micro Devices, Inc., Sunnyvale | CMOS gate structure having a pre-doped semiconductor gate material with improved uniformity of dopant distribution and methods of fabricating the structure |
| CN201037978Y (en) * | 2007-06-02 | 2008-03-19 | 山西乡镇企业焦炭供销有限责任公司 | Alarming top light on taxi roof |
| CN201156726Y (en) * | 2008-02-03 | 2008-11-26 | 深圳艾科创新微电子有限公司 | CMOS delay comparator with threshold adjustable |
| CN101425802A (en) * | 2008-11-17 | 2009-05-06 | 北大方正集团有限公司 | Signal conversion apparatus and method |
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|---|---|
| CN103885470A (en) | 2014-06-25 |
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