CN104965496B - Anti-surge control method based on antisurge control system - Google Patents
Anti-surge control method based on antisurge control system Download PDFInfo
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- CN104965496B CN104965496B CN201510359233.5A CN201510359233A CN104965496B CN 104965496 B CN104965496 B CN 104965496B CN 201510359233 A CN201510359233 A CN 201510359233A CN 104965496 B CN104965496 B CN 104965496B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 46
- 239000010865 sewage Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 6
- 230000003584 silencer Effects 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000010977 unit operation Methods 0.000 description 4
- 101100522111 Oryza sativa subsp. japonica PHT1-11 gene Proteins 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000001088 anti-asthma Effects 0.000 description 1
- 239000000924 antiasthmatic agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The present invention discloses the control method based on antisurge control system, including monitoring fan outlet pressure, and the pressure signal monitored is sent to the first control module；Fans entrance temperature is monitored, and the temperature signal monitored is sent to the second control module；The number to be jumped at the appointed time according to the pressure of monitoring judges whether unit occurs surge, and when judging to occur surge, and controls the first locator, the second locator, inlet guide vane electric operator and anti-surge valve and carry out Anti-surge Control；The number of degrees risen at the appointed time according to the temperature of monitoring judge whether generation surge, and when judging to occur surge, and control the first locator, the second locator, inlet guide vane electric operator and anti-surge valve and carry out Anti-surge Control；The present invention is by the monitoring and control to fan outlet pressure, and the monitoring and control of temperature to fans entrance reduce fault point to accurate and effectively carried out Anti-surge Control.
Description
Technical field
The present invention relates to sewage disposal control field, more particularly to a kind of Anti-surge Control based on antisurge control system
Method.
Background technology
Previous unit control system is using the calculated flow of flowmeter and the two-parameter function control of outlet pressure, in machine
Group close to when surging condition by adjust anti-surge valve, make the flow rate pressure of unit ensure safety zone run.But due to stream
Gauge usually requires the straight pipe grown very much, and many scenes all cannot achieve.In addition, flowmeter does not occupy needed for wind turbine layout
Space, it is also desirable to corresponding material resources and construction manpower, if flowmeter Rig up error, it is inaccurate to may result in flow parameter, into
And lead to unit operation problem.
Invention content
Technical problem to be solved by the invention is to provide a kind of accurate and effective progress Anti-surge Controls based on anti-asthma
The anti-surge control method of isolation control system.
In order to solve the above technical problems, the present invention provides a kind of Anti-surge Control sides based on antisurge control system
Method, the antisurge control system are antisurge control system of the sewage disposal station-service GM air blowers without flowmeter, the anti-surge
Control system include fans entrance temperature monitoring module, fan outlet pressure monitoring module, anti-surge valve, the first control module,
Second control module, the first locator, the second locator, inlet guide vane electric operator；The method includes：
Fan outlet pressure is monitored by the fan outlet pressure monitoring module, and the pressure signal monitored is transmitted
To the first control module；
Fans entrance temperature is monitored by the fans entrance temperature monitoring module, and the temperature signal monitored is transmitted
To the second control module；
Unit is judged according to the number that the pressure of the monitoring is jumped at the appointed time by first control module
Surge whether occurs, and when judging to occur surge, and the first locator, the second positioning are controlled by first control module
Device, inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control；
Judged whether according to the number of degrees that the temperature of the monitoring rises at the appointed time by second control module
Occur surge, and judge occur surge when, and by second control module control the first locator, the second locator,
Inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control.
Further, described to be jumped at the appointed time according to the pressure of the monitoring by first control module
Number judges whether unit occurs surge, and when judging to occur surge, and fixed by first control module control first
Position device, the second locator, inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control：
Setting judges the metering cycle time t3 of unit surge；
There is the time t2 of the peak separation of surging twice in the pressure signal for recording the transmission of fan outlet pressure monitoring module；
When the t2 is less than the t3, metering 1 time, and metering number does accumulation calculating within the t3 times, works as meter
When metering reaches 3 times in secondary cycle time t3, then it is judged as surge alarm；When metering reaches 5 times in metering cycle time t3,
Then it is judged as that surge is shut down；When being judged as surge alarm, anti-surge tune is carried out to the anti-surge valve by the first locator
Section, and controls the aperture of the valve of the anti-surge valve, and the operating point of unit is made to be moved to safety zone, far from surge area to avoid
Surge occurs for unit；When being judged as that surge is shut down, it is real that the anti-surge valve standard-sized sheet pressure release is controlled by first locator
Existing generator protection, while unit does Concatenate shut-down processing, while inlet guide vane electric operator is adjusted by the second locator
Return to original state crack when opening vehicle.
Further, it is described by the first locator FZT11 to the anti-surge valve carry out Regulation against surge be using 4~
20mA signals carry out Regulation against surge by the first locator to the anti-surge valve.
Further, further include when the peak separation time t2 of surging twice is more than or equal to metering cycle time t3, then
Counter O reset, again metering.
Further, described to be risen at the appointed time according to the temperature of the monitoring by second control module
The number of degrees judge whether occur surge, and judge occur surge when, and by second control module control the first locator,
Second locator, inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control：
Receive the temperature signal of temperature fans entrance temperature monitoring module monitoring；
When the temperature signal is more than before the deadline first threshold, then it is judged as surge alarm；For institute
State temperature signal before the deadline be more than second threshold when, then be judged as surge interlock；
When being judged as surge alarm, control warning device carries out surge alarm；When being judged as that surge is shut down, by the
One locator controls anti-surge valve standard-sized sheet pressure release and realizes generator protection, while unit does Concatenate shut-down processing, while passing through second
Locator adjusts inlet guide vane electric operator and returns to original state crack when opening vehicle.
Further, further include ensureing that anti-surge is replaced under non-stop-machine state or overhauled to unit by ensuring equipment
Valve.
Further, the ensuring equipment includes three valve group of anti-surge, and three valve group of the anti-surge includes the first valve, the
Two valves and third valve, the anti-surge valve is connected between first valve, third valve, to constitute first pipe
Branch；Second valve constitutes second pipe branch, the second pipe branch and the first pipe branch circuit parallel connection.
Further, described to ensure that anti-surge valve packet is replaced under non-stop-machine state or overhauled to unit by ensuring equipment
It includes：
When anti-surge valve needs maintenance, the first valve and third valve are closed；
When dismantling anti-surge valve, surge surprisingly occurs for unit, opens the second valve.
Further, further include working as to there is medium to arrange to air by the first pipe branch and the second pipe branch
When, noise reduction is carried out by silencer；The silencer is connect with second valve and third valve respectively.
Further, further include third pipeline branch；The third pipeline branch is connected with check-valves；It is drawn from air blower
Pipeline branch connect respectively with the first pipe branch, the second pipe branch and the third pipeline branch, it is described
Check-valves is for preventing the medium of user's process pipelines from pouring in down a chimney back unit.
Anti-surge control method provided by the invention based on antisurge control system is not only due to cancel inlet flow rate
Meter, can save flowmeter, with the manpower and materials of differential pressure transmitter and corresponding installation that flowmeter is mating, and due to flow
The installation of gauge needs to reserve installation straight pipe (cancelling flowmeter just without this installation constraint) on process pipelines, both saves one
Part pipeline, and the arrangement space needed for wind turbine is reduced, it eliminates flow caused by due to flowmeter Rig up error etc. and joins
Unit operation problem caused by number is inaccurate.By the monitoring and control to fan outlet pressure, and to the temperature of fans entrance
Monitoring and control reduce fault point to accurately and effectively carry out Anti-surge Control.
Description of the drawings
Fig. 1 is antisurge control system of the sewage disposal station-service GM air blowers without flowmeter provided in an embodiment of the present invention
Structural schematic diagram；
Fig. 2 is the performance graph schematic diagram of pressure detecting surge provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of the first control module provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of the second control module provided in an embodiment of the present invention；
Fig. 5 is the unit surge protection alarm interlock logic figure of monitoring inlet temperature variation provided in an embodiment of the present invention；
Fig. 6 is the stream of the anti-surge control method provided in an embodiment of the present invention based on antisurge control system shown in Fig. 1
Journey schematic diagram.
Specific implementation mode
Referring to Fig. 1, a kind of anti-surge control of the sewage disposal station-service GM air blowers without flowmeter provided in an embodiment of the present invention
System processed, including fans entrance temperature monitoring module (i.e. platinum resistance thermometer sensor, TE110 in Fig. 1), fan outlet pressure monitoring module
(i.e. pressure transmitter PT11 in Fig. 1), anti-surge valve 2, the first control module FIC110, the second control module TISA110,
One locator FZT11, the second locator PZT110 and inlet guide vane electric operator 1.
Pressure transmitter PT11 monitors fan outlet pressure, and the pressure signal monitored is sent to the first control module
FIC110.Fan outlet force pressure change rate initial set value is ± 100mbar/100ms.Platinum resistance thermometer sensor, TE110 is for supervising
Fans entrance temperature is surveyed, and the temperature signal monitored is sent to the second control module TISA110.
The number that first control module FIC110 jumps at the appointed time according to the pressure transmitter PT11 pressure monitored
Judge whether unit occurs surge, and when judging to occur surge, and controls the first locator FZT11, the second locator
PZT110, inlet guide vane electric operator 1 and anti-surge valve 2 (wherein, M indicates the motor being mounted on valve, FV11 be to
The position number of anti-surge valve setting) carry out Anti-surge Control；
Second control module TISA110, the number of degrees for being risen at the appointed time according to the temperature of monitoring judge whether
Surge occurs, and when judging to occur surge, and controls the first locator FZT11, the second locator PZT110, inlet guide vane electricity
Dynamic executing agency 1 and anti-surge valve 2 carry out Anti-surge Control.
Referring to Fig. 2, Fig. 3, the first control module FIC110 includes setup unit 10, recording unit 20, the first judging unit
30 and the first Anti-surge Control unit 40.Wherein, setup unit 10 is for setting the metering cycle time t3 for judging unit surge.
There is the peak separation of surging twice in the pressure signal that recording unit 20 is used to record the transmission of fan outlet pressure monitoring module
Time t2.Wherein, surging △ P can be positive surging or negative surging.First judging unit 30 is for ought be twice between the wave crest of surging
When time t2 is more than or equal to metering cycle time t3, then counter O reset, metering again.When t2 is less than t3, metering 1 time,
And metering number does accumulation calculating within the t3 times, when metering reaches 3 times in metering cycle time t3, is then judged as surge report
It is alert；When metering reaches 5 times in metering cycle time t3, then it is judged as that surge is shut down.In specific example, set surging value as
± 100mbar, t3 are set as 100ms, when outlet pressure surging value reaches ± 100mbar, then see the time up to this surging
T2, for example, this time be 10ms, counter just record occur surging number be it is primary, when 100ms inside counting devices note to 3 times,
First judging unit 30 is judged as alarming, remember to 5 times when be judged as surge interlocking, but if surging value reach ±
When time used in the time t2 of 100mbar is more than or equal to 100ms, then counter O reset, metering again.
First Anti-surge Control unit 40 is used for when the first judging unit 30 is judged as surge alarm, using 4~20mA
Signal carries out Regulation against surge by the first locator FZT11 to anti-surge valve 2, and controls the aperture of the valve of anti-surge valve 2,
So that the operating point of unit is moved to safety zone, surge occurs to avoid unit far from surge area；And when the first judging unit 30 is sentenced
Break when being shut down for surge, controlling 2 standard-sized sheet pressure release of anti-surge valve by the first locator FZT11 realizes generator protection, while unit
Concatenate shut-down processing is done, while being returned to by the second locator PZT110 adjusting inlet guide vanes electric operator 1 and opening Che Shiwei
The original state opened.
Anti-surge valve, this sewage disposal station-service GM air blowers are replaced or overhaul in order to ensure unit under non-stop-machine state
The antisurge control system of no flowmeter further includes ensuring equipment, which includes the first valve 3, the second valve 4 and the
Three valves 5.Anti-surge valve 2 is connected between the first valve 3, third valve 5, to constitute first pipe branch.Second valve 4
Constitute second pipe branch, second pipe branch and first pipe branch circuit parallel connection.This three valve is to add one and anti-surge
The anti-surge bypass line of valve parallel connection, under normal conditions, valve 3,5 are full-gear, and valve 4 is fully closed；It act as working as anti-surge valve
When needing maintenance, detachable anti-surge valve and it can ensure medium not at this time by the included fully closed valve of handwheel of valve 3,5 ontologies
It leaks, surge surprisingly occurs for unit when such as dismantling anti-surge valve, can open valve 4 by handwheel at this time, play pressure release and protect
The effect of unit, it is that can replace or overhaul anti-surge under the non-stop-machine state of unit to add anti-surge bypass and three valve group purposes
Valve.Emptying indicates that this pipeline is blow-down pipe, medium can be passed through this pipe by opening valve when being expressed as unit abnormality
Line is arranged to air.The purpose of air releasing silencer is when there is medium to be arranged to air by blow-down pipe used in noise reduction.
If surge occurs for unit, the entrance of air blower can countercurrently be returned to by being compressed to the medium of outlet, and air blower is caused to enter
Mouth temperature rises rapidly in a short time, therefore, temperature detecting point can be arranged in blower inlet using this feature, by sentencing
Rapid rising of the disconnected blower inlet medium temperature in certain time judges whether unit occurs surge, can also pass through this parameter control
Anti-surge valve standard-sized sheet processed protects unit, is determined according to unit measured performance when the TIME times can debug at the scene.Therefore, referring to figure
Shown in 4, Fig. 5, the second control module TISA110 includes receiving unit 50, second judgment unit 60 and the second Anti-surge Control list
Member 70.Receiving unit 50 is used to receive the temperature signal of temperature fans entrance temperature monitoring module monitoring.Second judgment unit 60
For when temperature signal is more than before the deadline first threshold, being then judged as surge alarm；For believing in the temperature
When being more than number before the deadline second threshold, then it is judged as that surge interlocks.In order to which production safety is effectively ensured, by a large amount of
Experiment, first threshold can be set as 3% or so of machine set outlet temperature, and second threshold can be set as machine set outlet temperature
5% or so.Referring to Fig. 5, first threshold is 4 degrees Celsius, and second threshold is 5 degrees Celsius.Second Anti-surge Control unit 70, is used for
When the second judgment unit 60 is judged as that surge is shut down, 2 standard-sized sheet pressure release of anti-surge valve is controlled by the first locator FZT11
Realize generator protection, while unit does Concatenate shut-down processing, while electronic by the second locator PZT110 adjusting inlet guide vanes
Executing agency 1 returns to original state crack when opening vehicle.
The antisurge control system of the sewage disposal station-service GM air blowers without flowmeter further includes be connected with check-valves
Three pipeline branches；From air blower draw pipeline branch respectively with the first pipe branch, the second pipe branch and institute
The connection of third pipeline branch is stated, the check-valves is for preventing the medium of user's process pipelines from pouring in down a chimney back unit；Third pipeline branch
Road is connect with user's process pipelines, and medium is sent to next technological process.
Referring to Fig. 6, an embodiment of the present invention provides one kind based on sewage disposal station-service GM air blowers shown in Fig. 1 without flowmeter
Antisurge control system anti-surge control method, specifically may include：
Step 10 monitors fan outlet pressure, and the pressure signal that will be monitored by fan outlet pressure monitoring module
It is sent to the first control module FIC110；
Step 20 monitors fans entrance temperature, and the temperature signal that will be monitored by fans entrance temperature monitoring module
It is sent to the second control module TISA110；
Step 30, the number to be jumped at the appointed time according to the pressure of the monitoring by the first control module FIC110
Judge whether unit occurs surge, and when judging to occur surge, and passes through first control module FIC110 the first positioning of control
Device FZT11, the second locator PZT110, inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control；
Step 40, the degree risen at the appointed time according to the temperature of the monitoring by the second control module TISA110
Number judges whether generation surge, and when judging to occur surge, and fixed by the second control module TISA110 controls first
Position device FZT11, the second locator PZT110, inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control.
Wherein, step 30 is jumped by the first control module FIC110 according to the pressure of the monitoring at the appointed time
The number of jump judges whether unit occurs surge, and when judging to occur surge, and passes through the first control module FIC110
It controls the first locator FZT11, the second locator PZT110, inlet guide vane electric operator and anti-surge valve and carries out anti-surge
Control specifically may include：
Setting judges the metering cycle time t3 of unit surge；
There is the time t2 of the peak separation of surging twice in the pressure signal for recording the transmission of fan outlet pressure monitoring module；
When t2 is less than the t3, metering 1 time, and metering number does accumulation calculating within the t3 times, when metering week
When metering reaches 3 times in time phase t3, then it is judged as surge alarm；When metering reaches 5 times in metering cycle time t3, then sentence
Break and is shut down for surge；When being judged as surge alarm, anti-surge tune is carried out to the anti-surge valve by the first locator FZT11
Section, and controls the aperture of the valve of the anti-surge valve, and the operating point of unit is made to be moved to safety zone, far from surge area to avoid
Surge occurs for unit；When being judged as that surge is shut down, anti-surge valve standard-sized sheet pressure release is controlled by the first locator FZT11 and realizes machine
Group protection, while unit does Concatenate shut-down processing, while the electronic execution machine of inlet guide vane is adjusted by the second locator PZT110
Structure returns to original state crack when opening vehicle.Carrying out Regulation against surge to the anti-surge valve by the first locator FZT11 is
Regulation against surge is carried out to the anti-surge valve by the first locator FZT11 using 4~20mA signals.When the wave of surging twice
When peak interval time t2 is more than or equal to metering cycle time t3, then counter O reset, metering again.
Step 30 is risen by the second control module TISA110 according to the temperature of the monitoring at the appointed time
The number of degrees judge whether that surge occurs, and when judging to occur surge, and pass through the second control module TISA110 controls the
One locator FZT11, the second locator PZT110, inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control tool
Body may include：
Receive the temperature signal of temperature fans entrance temperature monitoring module monitoring；
When the temperature signal is more than before the deadline first threshold, then it is judged as surge alarm；For institute
State temperature signal before the deadline be more than second threshold when, then be judged as surge interlock；
When being judged as surge alarm, control warning device carries out surge alarm；When being judged as that surge is shut down, by the
Generator protection is realized in one locator FZT11 control anti-surge valve standard-sized sheet pressure releases, while unit does Concatenate shut-down processing, passes through simultaneously
Second locator PZT110 adjusts inlet guide vane electric operator and returns to original state crack when opening vehicle.
Anti-surge control method provided in an embodiment of the present invention further includes ensureing unit non-stop-machine by ensuring equipment
Anti-surge valve is replaced or overhauled under state.Ensure that anti-surge is replaced under non-stop-machine state or overhauled to unit by ensuring equipment
Valve specifically may include, when anti-surge valve needs maintenance, closing the first valve 3 and third valve 5；When dismounting anti-surge valve opportunity
Group is unexpected to occur surge, opens the second valve 4.
Anti-surge control method provided in an embodiment of the present invention further includes the third pipeline branch by third pipeline branch
It is connect with user's process pipelines, medium is sent to next technological process.Third pipeline branch is connected with check-valves VR11；From air blast
The pipeline branch that power traction goes out is connect with first pipe branch, the second pipe branch and the third pipeline branch respectively.It should
Check-valves VR11 is for preventing the medium of user's process pipelines from pouring in down a chimney back unit.
Antisurge control system and its side of the sewage disposal station-service GM air blowers provided in an embodiment of the present invention without flowmeter
Method is not only due to cancel inlet flow rate meter, can save flowmeter, be applied with the differential pressure transmitter and corresponding installation that flowmeter is mating
The manpower and materials of work, and since the installation of flowmeter needs the reserved installation straight pipe on process pipelines (to cancel flowmeter just
No this installation constraint), a part of pipeline was not only saved, but also reduce the arrangement space needed for wind turbine, eliminated since flowmeter is pacified
Unit operation problem caused by flow parameter caused by filling the reasons such as improper is inaccurate.Pass through the monitoring and control to fan outlet pressure
System, and temperature to fans entrance monitoring and control, judge that unit operation point whether close to surge line, ensures unit safety
Operation reduces fault point to accurately and effectively carry out Anti-surge Control, ensures unit safety operation.
It should be noted last that the above specific implementation mode is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described the invention in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range, should all cover
In the scope of the claims of the present invention.
Claims (6)
1. a kind of anti-surge control method based on antisurge control system, which is sewage disposal station-service GM
Antisurge control system of the air blower without flowmeter, the antisurge control system include fans entrance temperature monitoring module, wind
Machine outlet pressure monitoring modular, anti-surge valve, the first control module, the second control module, the first locator, the second locator,
Inlet guide vane electric operator；It is characterized in that, the method includes：
Fan outlet pressure is monitored by the fan outlet pressure monitoring module, and the pressure signal monitored is sent to the
One control module；
Fans entrance temperature is monitored by the fans entrance temperature monitoring module, and the temperature signal monitored is sent to the
Two control modules；
Whether unit is judged according to the number that the pressure of the monitoring is jumped at the appointed time by first control module
Occur surge, and judge occur surge when, and by first control module control the first locator, the second locator,
Inlet guide vane electric operator and anti-surge valve carry out Anti-surge Control；It specifically includes：Setting judges the metering of unit surge
Cycle time t3；There is the time of the peak separation of surging twice in the pressure signal for recording the transmission of fan outlet pressure monitoring module
t2；When the t2 is less than the t3, metering 1 time, and metering number does accumulation calculating within the t3 times, when the metering period
When metering reaches 3 times in time t3, then it is judged as surge alarm；When metering reaches 5 times in metering cycle time t 3, then sentence
Break and is shut down for surge；When being judged as surge alarm, Regulation against surge is carried out to the anti-surge valve by the first locator, and
The aperture for controlling the valve of the anti-surge valve makes the operating point of unit be moved to safety zone, far from surge area to avoid unit
Surge occurs；When being judged as that surge is shut down, generator protection, same opportunity are realized by controlling the surge-proof valve standard-sized sheet pressure release
Group does Concatenate shut-down processing, at the same by the second locator adjust inlet guide vane electric operator return to open vehicle when it is crack just
Beginning state；
Judge whether to occur according to the number of degrees that the temperature of the monitoring rises at the appointed time by second control module
Surge, and control the first locator, the second locator, entrance when judging to occur surge, and by second control module
Guide vane electric operator and anti-surge valve carry out Anti-surge Control；
Further include ensureing that anti-surge valve is replaced under non-stop-machine state or overhauled to unit by ensuring equipment；
The ensuring equipment includes three valve group of anti-surge, and three valve group of the anti-surge includes the first valve, the second valve and third
Valve, the anti-surge valve are connected between first valve, third valve, to constitute first pipe branch；Described
Two valves constitute second pipe branch, the second pipe branch and the first pipe branch circuit parallel connection；
When anti-surge valve needs maintenance, the first valve and third valve are closed；
When dismantling anti-surge valve, surge surprisingly occurs for unit, opens the second valve.
2. according to the method described in claim 1, it is characterized in that, it is described by the first locator FZT11 to the anti-surge
It is to carry out Regulation against surge to the anti-surge valve by the first locator using 4-20mA signals that valve, which carries out Regulation against surge,.
3. according to the method described in claim 1, it is characterized in that, further include ought the peak separation time t2 of surging twice be more than
When equal to metering cycle time t3, then counter O reset, metering again.
4. according to the method described in claim 1, it is characterized in that, it is described by second control module according to the monitoring
The number of degrees that rise at the appointed time of temperature judge whether that surge occurs, and when judging to occur surge, and pass through described the
Two control modules control the first locator, the second locator, inlet guide vane electric operator and anti-surge valve and carry out anti-surge
Control includes：
Receive the temperature signal of temperature fans entrance temperature monitoring module monitoring；
When the temperature signal is more than before the deadline first threshold, then it is judged as surge alarm；For in the temperature
When degree signal is more than before the deadline second threshold, then it is judged as that surge interlocks；
When being judged as surge alarm, control warning device carries out surge alarm；When being judged as that surge is shut down, by controlling institute
It states surge-proof valve standard-sized sheet pressure release and realizes generator protection, while unit does Concatenate shut-down processing, while passing through the second locator tune
Section inlet guide vane electric operator returns to original state crack when opening vehicle.
5. according to the method described in claim 1, it is characterized in that, further include when there is medium by the first pipe branch and
When the second pipe branch is arranged to air, noise reduction is carried out by silencer；The silencer respectively with second valve and
Third valve connects.
6. according to claim 1-5 any one of them methods, which is characterized in that further include preventing from using by third pipeline branch
The medium of family process pipelines pours in down a chimney back unit；The third pipeline branch is connected with check-valves；The pipeline branch drawn from air blower
Road is connect with the first pipe branch, the second pipe branch and the third pipeline branch respectively, the third pipeline
Branch is for preventing the medium of user's process pipelines from pouring in down a chimney back unit.
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| CN106269310B (en) * | 2016-09-27 | 2018-06-29 | 珠海格力电器股份有限公司 | Surge control system |
| CN108131319B (en) * | 2017-12-21 | 2019-09-20 | 沈阳鼓风机集团自动控制系统工程有限公司 | Surge detection method and device |
| CN109595149A (en) * | 2019-01-15 | 2019-04-09 | 上海汽车集团股份有限公司 | The automatic identifying method and system of engine supercharger surge |
| CN113342072B (en) * | 2021-07-07 | 2023-04-14 | 精效悬浮(苏州)科技有限公司 | Constant flow control method and system |
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