CN108061195A - The method that a kind of high frequency fast cut valve door switch speed of VPSA techniques precisely detects - Google Patents
The method that a kind of high frequency fast cut valve door switch speed of VPSA techniques precisely detects Download PDFInfo
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- CN108061195A CN108061195A CN201711353292.7A CN201711353292A CN108061195A CN 108061195 A CN108061195 A CN 108061195A CN 201711353292 A CN201711353292 A CN 201711353292A CN 108061195 A CN108061195 A CN 108061195A
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- Prior art keywords
- high frequency
- fast cut
- frequency fast
- cut valve
- valve position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The step of method precisely detected the invention discloses a kind of high frequency fast cut valve door switch speed of VPSA techniques, includes:Valve position, the detection device for closing valve position are opened in installation in high frequency fast cut valve door executing agency；Set preset time；Measurement judges the transmission time of valve position signal；The speed of control adjustment high frequency fast cut valve door after early warning.It is effectively high to avoid asynchronous high frequency fast cut valve door, bite, the failure problems of /V adjustment by accurately detecting early warning.It ensure that VPSA technique medium-high frequency fast cut valve doors efficiently switch.
Description
Technical field
The present invention relates to high frequency fast cut valve technical fields, and in particular to a kind of high frequency fast cut valve switching speed of VPSA techniques
The method precisely detected.
Background technology
The high-frequency switching valve for the switching of gas pipeline fluid is commonly used in current VPSA production technologies.Existing
In technology, the asynchronous of high frequency fast cut valve, bite, /V adjustment failure are multiple failures, influence whether VPSA system
Automatically continuation, the reliability produced.The insoluble main cause of failure is a lack of the accurate prison to fast cut valve speed, time
Control and early warning.The main reason is that：Valve site lacks perfect reliable device for detecting valve position；The equipment that can not give warning in advance is different
Often；PLC software program designs deficiency.
1 is only devised on the valve position of current high frequency fast cut valve, even without setting detecting element.There is no valve position detection
The valve of element how switch motion when can not determine the physical location of valve completely, even if there is can only also examining for 1 detecting element
Measure a kind of valve location (open position/off-position).This so that it is all to occur valve gas leakage in art production process, check card not in place
Can not intuitively it judge.The physical location and switching signal of valve site cannot be introduced into PLC monitoring systems, can not accurate judgement
The actual operating state of valve site, it is impossible to adopt an effective measure in time and prevent fault car parking, miss correct valve location and
The opportunity of position.Simultaneously as lack scene valve position detection element and to VPSA technology troubles satirize prevention scheme it is not deep enough
Enter, cause the detection logic and method of ignoring valve event speed in programming in programmer.
In face of in the prior art, the high frequency caused by lacking the accurate monitoring to fast cut valve speed, time and early warning
The asynchronous of fast cut valve, bite, /V adjustment failure are multiple failures, how by accurately detecting early warning to avoid this
A little problems problem to be solved by this invention.
The content of the invention
It is an object of the invention to provide the methods that a kind of high frequency fast cut valve switching speed of VPSA techniques precisely detects.With
The problem of to avoid existing the asynchronous of high frequency fast cut valve, bite, /V adjustment failure.
To achieve the above object, the technical scheme is that providing a kind of high frequency fast cut valve switch speed per hour of VPSA techniques
Spend the method precisely detected.The step of method that the high frequency fast cut valve switching speed of VPSA techniques precisely detects, includes:In high frequency
Valve position, the detection device for closing valve position are opened in installation in fast cut valve door executing agency；Set preset time；Measurement judges that valve position is believed
Number transmission time；The speed of control adjustment high frequency fast cut valve door after early warning.
Step 1：Valve position, the detection device for closing valve position are opened in installation in high frequency fast cut valve door executing agency；
The angle that high frequency fast cut valve opens the action of valve position is 90 degree of up time, and the angle that high frequency fast cut valve closes the action of valve position is
90 degree of inverse time.A sensing iron block is fixed in the ends that actuator shaft is connected with valve rod, in executing agency
The two-wire system electromagnetic proximity switch of shell output shaft adjacent locations two 24V direct currents of right angle setting as opening valve position, closes valve
The detection device of position.The two position signals make the critical component for accurately measuring frequency fast cut valve door responsiveness, when open valve position,
When closing valve position, the detection device of installation will be saved with actuator shaft synchronous rotary by electromagnetic induction switch circuit
The break-make of point is transferred to inside PLC, and operating personnel can remotely monitor, grasp the actual opening of valve, close.
Step 2：Set preset time；
According to actual VPSA process systems to go set the preset time.Different VPSA process systems will go to set
Different preset times, and showing for different high speed fast cut valve door velocity anomalies can be measured by different preset times
As.General high frequency fast cut valve Men Yue great, preset time are longer.The preset time scope that sets of lock as, 700~1100 milliseconds it
Between.
Step 3：Measurement judges the transmission time of valve position signal；
Speed in electrical signal online road belongs to light velocity rank, and electromagnetic proximity switch element to PLC module distance not
More than 1 km, therefore ignore the transmission time of round trip in electrical signal online road.
When the speed of valve position is opened in measurement, high frequency fast cut valve door is in the closed position, closes valve position feedback switch to close
Conjunction state.When operating personnel, which control, opens high frequency fast cut valve door, the normally opened node that valve position feedback switchs in PLC control program connects
Logical, high frequency fast cut valve door is opened output order and is sent, and valve position opening speed alarm timer starts cumulative meter, while high frequency at this time
Fast cut valve door starts to perform the action opened.During action, when valve position opening speed alarm timer is added to preset
Between, and high frequency fast cut valve door is actual is not turned in place, that is, opens valve position feedback switch still in closure state, then opens valve position
Overtime alarm switch is triggered.
If high frequency fast cut valve door is opened after output order sends, reach preset time and high frequency fast cut valve door again without dynamic
Make, that is, open valve position feedback switch and be constantly in closure state, valve position time-out alarm switch is opened under this situation can also be triggered.
When the speed of valve position is closed in measurement, high frequency fast cut valve door is in the open position, and opens valve position feedback switch to close
Conjunction state.When operating personnel, which control, closes high frequency fast cut valve door, the normally closed node that valve position feedback switchs in PLC control program connects
It is logical.High frequency fast cut valve door, which is closed output and specified, to be sent, and valve position, which closes acceleration alert and closes timer, at this time starts cumulative meter, while high frequency
Fast cut valve door starts to perform the action opened.During action, when valve position closing velocity alarm timer is added to preset
Between, and high frequency fast cut valve door is actual is not turned in place, that is, closes valve position feedback switch still in closure state, then closes valve position
Overtime alarm switch is triggered.
If high frequency fast cut valve door is closed after output specifies and send, preset time and high frequency fast cut valve door are reached again without dynamic
Make, that is, close valve position feedback switch and be constantly in closure state, this situation ShiShimonoseki valve closing position time-out alarm switch can also be triggered.
Step 4：Control adjustment high frequency fast cut valve door after early warning；
After when opening valve position, time-out alarm switch is triggered in preset time, computer control terminal is just present with the letter of alarm
Breath and the sound of alarm prompt high frequency fast cut valve door opening speed slow；
After when opening valve position, time-out alarm switch is triggered outside preset time, computer control terminal is just present with the letter of alarm
Breath and the sound of alarm, prompt high frequency fast cut valve door to be not turned on.
After when closing valve position, time-out alarm switch is triggered in preset time, computer control terminal is just present with the letter of alarm
Breath and the sound of alarm prompt high frequency fast cut valve closing speed slow；
After when closing valve position, time-out alarm switch is triggered in preset time, computer control terminal is just present with the letter of alarm
Breath and the sound of alarm, prompt high frequency fast cut valve door to be not turned off.
The invention has the advantages that：By accurately detecting early warning, effectively height avoids high frequency fast cut valve door not
Synchronization, bite, the failure problems of /V adjustment.It ensure that VPSA technique medium-high frequency fast cut valve doors efficiently switch.
Description of the drawings
Fig. 1 is the FB(flow block) of step of the present invention.
Fig. 2 is the cyclematics of the present invention.
Specific embodiment
Following embodiment is not limited to the scope of the present invention for illustrating the present invention.
The step of method that a kind of high frequency fast cut valve switching speed of VPSA techniques of the present invention precisely detects, includes:
Valve position, the detection device for closing valve position are opened in installation in high frequency fast cut valve door executing agency；Set preset time；Measurement judges
The transmission time of valve position signal；Control adjustment high frequency fast cut valve door after early warning.
Embodiment 1
In actual operating process, the ends that actuator shaft is connected with valve rod fix a sensing iron
Block, in the two-wire system electromagnetic proximity switch of executing agency's shell output shaft adjacent locations two 24V direct currents of right angle setting, as beating
Valve opening position, the detection device for closing valve position.After installation is complete according to actual VPSA process systems when going to set preset
Between, different VPSA process systems will go to set different preset times, and the scope set by general preset time is, 700~
Between 1100 milliseconds.
When the speed of valve position is opened in measurement, high frequency fast cut valve door is in the closed position, closes valve position feedback switch to close
Conjunction state.When operating personnel, which control, opens high frequency fast cut valve door, the normally opened node that valve position feedback switchs in PLC control program connects
Logical, high frequency fast cut valve door is opened output order and is sent, and valve position opening speed alarm timer starts cumulative meter, while high frequency at this time
Fast cut valve door starts to perform the action opened.During action, when valve position opening speed alarm timer is added to preset
Between, and high frequency fast cut valve door is actual is not turned in place, that is, opens valve position feedback switch still in closure state, then opens valve position
Overtime alarm switch is triggered.When opening valve position time-out alarm switch after preset time is triggered, computer control terminal will go out
The information and the sound of alarm now alarmed, prompt high frequency fast cut valve door opening speed slow.
Embodiment 2
In actual operating process, the ends that actuator shaft is connected with valve rod fix a sensing iron
Block, in the two-wire system electromagnetic proximity switch of executing agency's shell output shaft adjacent locations two 24V direct currents of right angle setting, as beating
Valve opening position, the detection device for closing valve position.After installation is complete according to actual VPSA process systems when going to set preset
Between, different VPSA process systems will go to set different preset times, and the scope set by general preset time is, 700~
Between 1100 milliseconds.
When the speed of valve position is opened in measurement, high frequency fast cut valve door is in the closed position, closes valve position feedback switch to close
Conjunction state.When operating personnel, which control, opens high frequency fast cut valve door, the normally opened node that valve position feedback switchs in PLC control program connects
Logical, high frequency fast cut valve door is opened output order and is sent, and valve position opening speed alarm timer starts cumulative meter, while high frequency at this time
Fast cut valve door starts to perform the action opened.During action, when valve position opening speed alarm timer is added to preset
Between, high frequency fast cut valve door opens valve position feedback switch and is constantly in closure state, valve is opened under this situation again without action
The overtime alarm switch in position can also be triggered.When opening valve position time-out alarm switch after preset time is triggered, computer control terminal
Just it is present with the information of alarm and the sound of alarm, high frequency fast cut valve door is prompted to be not turned on.
Embodiment 3
In actual operating process, the ends that actuator shaft is connected with valve rod fix a sensing iron
Block, in the two-wire system electromagnetic proximity switch of executing agency's shell output shaft adjacent locations two 24V direct currents of right angle setting, as beating
Valve opening position, the detection device for closing valve position.After installation is complete according to actual VPSA process systems when going to set preset
Between, different VPSA process systems will go to set different preset times, and the scope set by general preset time is, 700~
Between 1100 milliseconds.
When the speed of valve position is closed in measurement, high frequency fast cut valve door is in the open position, and opens valve position feedback switch to close
Conjunction state.When operating personnel, which control, closes high frequency fast cut valve door, the normally closed node that valve position feedback switchs in PLC control program connects
It is logical.High frequency fast cut valve door, which is closed output and specified, to be sent, and valve position, which closes acceleration alert and closes timer, at this time starts cumulative meter, while high frequency
Fast cut valve door starts to perform the action opened.During action, when valve position closing velocity alarm timer is added to preset
Between, and high frequency fast cut valve door is actual is not turned in place, that is, closes valve position feedback switch still in closure state, then closes valve position
Overtime alarm switch is triggered.When closing valve position time-out alarm switch after preset time is triggered, computer control terminal will go out
The information and the sound of alarm now alarmed, prompt high frequency fast cut valve closing speed slow.
Embodiment 4
In actual operating process, the ends that actuator shaft is connected with valve rod fix a sensing iron
Block, in the two-wire system electromagnetic proximity switch of executing agency's shell output shaft adjacent locations two 24V direct currents of right angle setting, as beating
Valve opening position, the detection device for closing valve position.After installation is complete according to actual VPSA process systems when going to set preset
Between, different VPSA process systems will go to set different preset times, and the scope set by general preset time is, 700~
Between 1100 milliseconds.
When the speed of valve position is closed in measurement, high frequency fast cut valve door is in the open position, and opens valve position feedback switch to close
Conjunction state.When operating personnel, which control, closes high frequency fast cut valve door, the normally closed node that valve position feedback switchs in PLC control program connects
It is logical.High frequency fast cut valve door, which is closed output and specified, to be sent, and valve position, which closes acceleration alert and closes timer, at this time starts cumulative meter, while high frequency
Fast cut valve door starts to perform the action opened.During action, when valve position closing velocity alarm timer is added to preset
Between, and high frequency fast cut valve door closes valve position feedback switch and is constantly in closure state, closed under this situation again without action
Valve position time-out alarm switch can also be triggered.After when closing valve position, time-out alarm switch is triggered in preset time, computer control
End processed is just present with the information of alarm and the sound of alarm, and high frequency fast cut valve door is prompted to be not turned off.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (8)
1. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques precisely detects, which is characterized in that the VPSA
The step of method that the high frequency fast cut valve door switch speed of technique precisely detects, includes:Pacify in high frequency fast cut valve door executing agency
Dress opens valve position, the detection device for closing valve position；Set preset time；Measurement judges the transmission time of valve position signal；After early warning
Control adjustment high frequency fast cut valve door.
2. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques according to claim 1 precisely detects,
Special type is that the detection device that valve position is closed in valve position is opened in the installation in high frequency fast cut valve door executing agency, is to hold
The ends that row mechanism output shaft is connected with valve rod fix a sensing iron block, are closed in executing agency's shell output shaft
The two-wire system electromagnetic proximity switch of two 24V direct currents of position right angle setting, as the detection device opened valve position, close valve position.
3. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques according to claim 2 precisely detects,
Special type is that described opens valve position, the detection device and actuator shaft synchronous rotary of closing valve position.
4. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques according to claim 1 precisely detects,
Special type is that the setting preset time is to carry out setting preset time according to different VPSA process systems.
5. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques according to claim 2 precisely detects,
Special type is that the time range that the preset time is set is 700~1100 millisecond.
6. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques according to claim 1 precisely detects,
Special type is that the measurement judges the transmission time of valve position signal, is closed by valve position opening speed alarm timer, valve position
Acceleration alert timer periods are closed to add up to judge the transmission time of valve position signal.
7. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques according to claim 1 precisely detects,
Special type is, after the early warning in control adjustment high frequency fast cut valve door, when opening valve position time-out alarm switch is in preset time
After being inside triggered, computer control terminal is just present with the information of alarm and the sound of alarm, prompts high frequency fast cut valve door opening speed
Slowly；
After opening valve position time-out alarm switch and being triggered outside preset time, computer control terminal be just present with alarm information and
The sound of alarm prompts high frequency fast cut valve door to be not turned on.
8. the method that a kind of high frequency fast cut valve door switch speed of VPSA techniques according to claim 1 precisely detects,
Special type is, after the early warning in control adjustment high frequency fast cut valve door, when closing valve position time-out alarm switch is in preset time
After being inside triggered, computer control terminal is just present with the information of alarm and the sound of alarm, prompts high frequency fast cut valve closing speed
Slowly；
After closing valve position time-out alarm switch and being triggered in preset time, computer control terminal be just present with alarm information and
The sound of alarm prompts high frequency fast cut valve door to be not turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353292.7A CN108061195B (en) | 2017-12-15 | 2017-12-15 | Method for accurately detecting switching speed of high-frequency quick-switching valve in VPSA process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353292.7A CN108061195B (en) | 2017-12-15 | 2017-12-15 | Method for accurately detecting switching speed of high-frequency quick-switching valve in VPSA process |
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| CN108061195A true CN108061195A (en) | 2018-05-22 |
| CN108061195B CN108061195B (en) | 2020-03-17 |
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ID=62139138
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| CN201711353292.7A Active CN108061195B (en) | 2017-12-15 | 2017-12-15 | Method for accurately detecting switching speed of high-frequency quick-switching valve in VPSA process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864159A (en) * | 2018-08-27 | 2020-03-06 | 阿自倍尔株式会社 | Valve maintenance support device and support method |
| CN112212063A (en) * | 2020-09-22 | 2021-01-12 | 广东韶钢松山股份有限公司 | Control protection method and device for electric valve |
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| US5174152A (en) * | 1991-03-06 | 1992-12-29 | Wohld Peter R | Power operated valve stem thrust verification test system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112212063A (en) * | 2020-09-22 | 2021-01-12 | 广东韶钢松山股份有限公司 | Control protection method and device for electric valve |
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|---|---|
| CN108061195B (en) | 2020-03-17 |
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