CN109876672A - A kind of method and apparatus of precision processing powdex leakage on-line monitoring - Google Patents
A kind of method and apparatus of precision processing powdex leakage on-line monitoring Download PDFInfo
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- CN109876672A CN109876672A CN201910294898.0A CN201910294898A CN109876672A CN 109876672 A CN109876672 A CN 109876672A CN 201910294898 A CN201910294898 A CN 201910294898A CN 109876672 A CN109876672 A CN 109876672A
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- 238000012545 processing Methods 0.000 title claims abstract description 59
- 238000012544 monitoring process Methods 0.000 title claims abstract description 25
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- 238000005070 sampling Methods 0.000 claims abstract description 64
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 69
- 239000000843 powder Substances 0.000 claims description 37
- 230000008676 import Effects 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 239000012634 fragment Substances 0.000 claims description 5
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
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- 238000009738 saturating Methods 0.000 claims description 2
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- 238000012790 confirmation Methods 0.000 abstract description 6
- 239000008358 core component Substances 0.000 abstract description 2
- 238000012795 verification Methods 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 69
- 230000006872 improvement Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
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- 238000005260 corrosion Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 241000242583 Scyphozoa Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a kind of method and apparatus of precision processing powdex leakage on-line monitoring, which includes sampling system and detection system；Sampling system includes sampling shut-off valve, sampling pressure reducing valve, sample introduction shut-off valve, sample introduction pressure maintaining valve and signal piping blowdown valve etc.；Detection system includes transparent organic glass filter box, filter box inlet gage, filter box discharge pressure table, difference gauge and combined aural and visual alarm equipped with filter membrane；In this method, transparent organic glass filter box equipped with filter membrane is the core component of apparatus of the present invention, on the one hand it forms pressure difference and generates alarm realization on-line monitoring function, whether the setting of another aspect transparent visual filter membrane is convenient for the daily powdex situation verification warning note collected on personnel to live visual observation filter membrane when issuing leakage alarms with device of inspecting periodically accurate, to realize artificial finally confirmation；Filter box inlet gage is calculated by difference gauge and filters the pressure difference of box discharge pressure table, and combined aural and visual alarm makes a sound and illumination alarm after receiving signal.
Description
Technical field
The invention belongs to the on-line monitoring field of power plant's precision processing filter leaching material leakage, specially a kind of precision processing powder
The method and apparatus of resin leakage on-line monitoring.
Background technique
As northern area very rich needs the development of thermoelectricity Direct Air-cooled Unit to water scarcity coal resources
It wants, precision processing powder precoat filter is by good to Air-Cooling Island condensed water except iron and except silicon effect, high-temperature stability, a large amount of
It is water-saving, without acid-base waste fluid discharge, the advantages such as system is simple to operation, welcome extensive development.But in recent years, due to big
Most power plant do not take the measure for effectively preventing powdex from leaking, and the domestic online prison for lacking powdex leakage substantially
Survey technology, the event that powdex leakage occurs is more and more, and powdex enters unit water-steam system deterioration Water Vapor Quality and makes
At boiler tubing corrosion even booster or blocking preposition pump screen of feed pump etc. cause it is non-stop accident, seriously threatened unit
Safety, economic stability operation, compromise power generation.
Currently, relying primarily on detection of the online chemical instruments to Water Vapor Quality for the monitoring of powdex leakage.Work as essence
When handling the generation powdex leakage of powder precoat filter, with the raising of water-steam system temperature, powdex is decomposed
Steam is polluted, furnace water and the variation of steam Water Vapor Quality are most obvious, and severe exacerbation occurs for Water Vapor Quality, and operations staff passes through discovery water
The variation of vapour system on-line chemical monitoring instrument generation simultaneously needs to find that powdex has occurred after a series of reasons are checked
Leakage, in such a long time, the deterioration of therrmodynamic system steam causes each important equipment such as boiler, steam turbine in system
Irreversible corrosion.Therefore it needs to develop a kind of on-line monitoring technique that precision processing powdex leaks.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of side of precision processing powdex leakage on-line monitoring
Method and device, easy to operate, monitoring data rapidly, reliably, judge the leakage of precision processing powdex accurately and timely, can effectively prevent
Therrmodynamic system water and steam quality caused by powdex leaks deteriorates caused damage equipment safety problem.
The present invention is to be achieved through the following technical solutions:
A kind of precision processing powdex leakage on-Line Monitor Device, including sampling system and detection system；Wherein, sample train
System includes sampling shut-off valve, sampling pressure reducing valve, sample introduction shut-off valve, sample introduction pressure maintaining valve, signal piping blowdown valve and sampling line row
Dirty valve, detection system include transparent organic glass filter box, filter box inlet gage, filter box discharge pressure table, difference equipped with filter membrane
Pressure meter and combined aural and visual alarm；
The import of sampling shut-off valve is connect with sample tap, is exported and is connect with the import of sampling pressure reducing valve, samples pressure reducing valve
Outlet be divided into two-way, connect all the way with the import of sampling line blowdown valve, another way is connect with the import of sample introduction shut-off valve, into
The outlet of sample shut-off valve is connect with the import of sample introduction pressure maintaining valve, and the outlet of sample introduction pressure maintaining valve is divided into two-way, is intake all the way with filter box
The import of pressure gauge connects, and another way is connect with the import of the transparent organic glass filter box equipped with filter membrane, equipped with the transparent of filter membrane
The outlet of organic glass filter box is divided into two-way, connect all the way with the import of signal piping blowdown valve, another way and filter box water outlet pressure
The import of power table connects, and the outlet of the outlet and filter box discharge pressure table of filtering box inlet gage connects with the import of difference gauge
It connecing, combined aural and visual alarm is connect with difference gauge, and difference gauge is used to calculate filter box inlet gage and filter the pressure difference of box discharge pressure table,
Combined aural and visual alarm makes a sound and illumination alarm after being used to receive the signal of difference gauge sending.
A further improvement of the present invention lies in that each connecting pipe is the TP304 hollow stainless steel tube of diameter 8mm.
A further improvement of the present invention lies in that the sample tap setting in sampling system goes out in precision processing powder precoat filter
On jellyfish pipe, for monitoring the multiple powder precoat filter water outlets of precision processing.
A further improvement of the present invention lies in that setting sampling pressure reducing valve sample introduction shut-off valve and sampling line blowdown valve it
Before, sampling pressure is reduced to 0.6MPa or less.
A further improvement of the present invention lies in that placing one in the transparent organic glass filter box equipped with filter membrane in detection system
The filter membrane that 5 μm of Zhang Jingdu filters water sample and acquires and let out for simulating interception of the filter filtering element of same precision to powdex
Leak into the powdex in water sample；After being collected into a certain amount of powdex, the transparent organic glass filter box equipped with filter membrane
Inflow and outflow forms certain pressure difference, respectively with filter box inlet gage and filter box discharge pressure table measurement, difference gauge into
Travel out the measurement of water sample pressure difference value；Signal is transmitted when differential pressure count value is more than setting value to combined aural and visual alarm, acousto-optic report
Alert device makes a sound and warning blinker.
A further improvement of the present invention lies in that transparent organic glass filter box of the setting equipped with filter membrane is visual transparent, it is convenient
Gleanings on personnel's visual observation filter membrane.
A kind of method of precision processing powdex leakage on-line monitoring, this method are based on a kind of above-mentioned precision processing powdex
Leak on-Line Monitor Device, comprising the following steps:
Step S1 after precision processing powder precoat filter puts into operation, opens sampling shut-off valve, pressure reducing valve and sampling line blowdown
Valve is sampled and observes to the water sample of precision processing powder precoat filter main water outlet pipe, when in water sample without obvious iron particle, broken
After piece foreign matter, sample introduction shut-off valve, sample introduction pressure maintaining valve, the transparent organic glass filter box equipped with filter membrane and signal piping blowdown are opened
Valve；
Step S2 closes sampling line blowdown valve, adjusts sample introduction pressure maintaining valve, and filter box inlet gage is kept to stablize；It is equipped with
Filter membrane in the transparent organic glass filter box of filter membrane starts gradually to collect the powdex being bled into water sample, certain when being collected into
After the powdex of amount, the inflow and outflow of the transparent organic glass filter box equipped with filter membrane will form certain pressure difference；
Step S3 is determined respectively using filter box inlet gage and filter box discharge pressure table, uses difference gauge pair
The difference of disengaging water sample pressure is measured；
Step S4 transmits signal when differential pressure count value is more than setting value to combined aural and visual alarm, combined aural and visual alarm sending sound
Sound and warning blinker, operations staff obtain alarm at the first time, and the visual observation that is on the scene is equipped with the transparent organic glass of filter membrane
Filter membrane in filter box has collected a large amount of powdexes, then confirms that precision processing powdex is leaked, and determines to precision processing
Powder precoat filter takes stoppage in transit measure.
The invention has the following beneficial technical effects:
A kind of precision processing powdex provided by the invention leaks on-Line Monitor Device, in precision processing powder precoat filter
Water sampling is monitored on-line in main water outlet pipe, the filter of the transparent organic glass filter box analog same precision equipped with filter membrane
Interception of the filtering element to powdex samples and continuous by filter membrane in this device if filtering element failure causes powdex to leak
It intercepting, significant change occurs for Inlet and outlet water pressure difference in the filter box equipped with filter membrane, data capture is carried out by pressure gauge and differential pressure gauge,
Signal to combined aural and visual alarm can be transmitted when differential pressure gauge data are more than setting value and issues alarm, and operations staff's vigilance simultaneously goes to scene
It is visually observed through organic glass filter box, after confirming that collection has a large amount of powdexes on filter membrane, judges that precision processing powder covered
Filter powdex leaks, and shuts down powder precoat filter immediately, it is ensured that the steam of therrmodynamic system is not contaminated, heating power is set
It is standby not corroded.
Further, setting sample tap can cover the multiple powder of unit in precision processing powder precoat filter main water outlet pipe
The water outlet of filter is monitored on-line；Setting sampling pressure reducing valve can incite somebody to action before sample introduction shut-off valve and sampling line blowdown valve
The precision processing water sample of medium voltage network reduces pressure to 0.6MPa hereinafter, in order to sample and monitor；Sampling line blowdown valve is set
It is in parallel with sample introduction shut-off valve, it can be rinsed when having more foreign matter in sample water and blowdown, to ensure that on-Line Monitor Device is special
It is foreign matters from being blocked or the damages such as a large amount of iron particles, fragment that accurate filter membrane is not opened that the water sample during machine contains such as；Setting
Filter box intake pressure is adjusted before the transparent organic glass filter box and filter box inlet gage equipped with filter membrane in sample introduction pressure maintaining valve
Table remains unchanged it, and filter membrane constantly intercept powdex during, filter box discharge pressure variation it is just fairly obvious,
I.e. significant change occurs for Inlet and outlet water pressure difference in the filter box equipped with filter membrane.
Further, the filter membrane that 5 μm of precision are arranged can simulate interception of the powder precoat filter filtering element to powdex,
Filtering water sample simultaneously acquires the powdex being bled into water sample, significantly improves detection accuracy；Filter box be arranged to it is visual transparent,
To facilitate operations staff scene visually to observe the gleanings on filter membrane, scene confirmation powdex is with the presence or absence of leakage；Work as collection
To after a certain amount of powdex, the inflow and outflow of the transparent organic glass filter box equipped with filter membrane forms certain pressure difference,
Using filter box inlet gage and filter box discharge pressure table measurement, the measurement of disengaging water sample pressure difference value is carried out using difference gauge；
Combined aural and visual alarm is set, and when differential pressure gauge data are more than setting value, transmission signal is issued to combined aural and visual alarm and alarmed, and passes through acousto-optic
The quick warning to personnel is realized in alarm.
A kind of method of precision processing powdex leakage on-line monitoring provided by the invention, precision processing powder precoat filter
Water sample in main water outlet pipe enters after shut-off valve, pressure reducing valve, pressure maintaining valve in filter box, is filtered, is intercepted by high-precision filter membrane
Thus the powdex being bled into water sample forms pressure difference to filter membrane Inlet and outlet water, captures pressure to pressure gauge and difference gauge
Difference simultaneously reaches to form alarm signal after setting value and be transmitted to sound-light alarm and gives a warning, and quickly rushes to smart place after operations staff's discovery
The powdex intercepted on filter membrane is checked by the filter box of transparent organic glass at reason powder precoat filter, confirmation exists a large amount of
Assert that precision processing powder precoat filter has leakage, requires precision processing powder precoat filter to stop transport immediately after powdex,
It avoids that equipment corrosion is caused to be stopped transport to avoid state of affairs further expansion.
Detailed description of the invention
Fig. 1 is the flow chart of leakage detection apparatus of the present invention when in use.
Fig. 2 is on-Line Monitor Device schematic diagram of the present invention.
Description of symbols:
1-precision processing powder precoat filter main water outlet pipe, 2-sampling shut-off valves, 3-sampling pressure reducing valves, 4-sample introductions are cut
Only valve, 5-sample introduction pressure maintaining valves, the 6-transparent organic glass equipped with filter membrane filter box, 7-signal piping blowdown valves, 8-probe tubes
Road blowdown valve, 9- filter box inlet gage, 10-filter box discharge pressure tables, 11-difference gauges, 12-combined aural and visual alarms.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, it is described be explanation of the invention and
It is not to limit.
A kind of method and apparatus of precision processing powdex leakage on-line monitoring provided by the invention, can monitor essence on-line
The effluent quality of powder precoat filter is handled, to guarantee to find the powder precoat filter of leakage in time, it is ensured that heating power system
The safety of the equipment such as the water and steam quality and boiler turbine of system.
As shown in Fig. 2, a kind of precision processing powdex provided by the invention leaks on-Line Monitor Device, including sampling system
And detection system；The sampling system include sampling shut-off valve 2, sampling pressure reducing valve 3, sample introduction shut-off valve 4, sample introduction pressure maintaining valve 5,
Signal piping blowdown valve 7 and sampling line blowdown valve 8, sampling shut-off valve 2 are connect with sample tap, and sampling pressure reducing valve 3 and sampling are cut
Only valve 2 connects, and sample introduction shut-off valve 4 and sampling line blowdown valve 8 are connect with sampling pressure reducing valve 3, and sample introduction pressure maintaining valve 5 and sample introduction are cut
Only valve 4 connects, and signal piping blowdown valve 7 is connect with the transparent organic glass filter box 6 equipped with filter membrane, and each connecting line is diameter
The TP304 hollow stainless steel tube of 8mm.
The detection system includes that transparent organic glass filter box 6, filter box inlet gage 9, the filter box equipped with filter membrane go out
Water pressure table 10, difference gauge 11 and combined aural and visual alarm 12, transparent organic glass filter box 6 and sample introduction pressure maintaining valve 5 equipped with filter membrane connect
Connect, filter box inlet gage 9 and filter box discharge pressure table 10 be separately mounted to equipped with filter membrane transparent organic glass filter box 6 into
On export pipeline, each connecting line is the TP304 hollow stainless steel tube of diameter 8mm；Difference gauge 11 is for calculating filter box water inlet
The pressure difference of pressure gauge 9 and filter box discharge pressure table 10；Combined aural and visual alarm 12 after receiving signal for making a sound and illumination police
Report.
In the sampling system, sample tap is set in precision processing powder precoat filter main water outlet pipe 1, at monitoring essence
Multiple powder precoat filter water outlets are managed, sample tap is connect with sampling shut-off valve 2；Setting sampling pressure reducing valve 3 is in sample introduction shut-off valve 4
Before sampling line blowdown valve 8, sampling pressure is reduced to 0.6MPa or less；Sampling line blowdown valve 8 is set and sample introduction ends
Valve 4 is in parallel, can be rinsed when having more foreign matter in sample water and blowdown；Sample introduction pressure maintaining valve 5 is set transparent equipped with filter membrane
Before organic glass filters box 6 and filter box inlet gage 9, filter box inlet gage 9 is adjusted using sample introduction pressure maintaining valve 5 and is kept not
Become.
In the detection system, one 5 μm of precision of filter membrane is placed in the transparent organic glass filter box 6 equipped with filter membrane,
Interception of the filter filtering element of same precision to powdex is simulated, water sample is filtered and acquires the powder tree being bled into water sample
Rouge；Be arranged the transparent organic glass filter box 6 equipped with filter membrane be it is visual transparent, facilitate the gleanings on personnel's visual observation filter membrane；
After being collected into a certain amount of powdex, the inflow and outflow of the transparent organic glass filter box 6 equipped with filter membrane forms certain
Pressure difference is measured with filter box inlet gage 9 and filter box discharge pressure table 10 respectively, and difference gauge 11 carries out disengaging water sample pressure difference
The measurement of value；Signal is transmitted when 11 numerical value of difference gauge is more than setting value to combined aural and visual alarm 12,12 sending sound of combined aural and visual alarm
Sound and warning blinker.
As shown in Figure 1, a kind of method of precision processing powdex leakage on-line monitoring provided by the invention, including following step
It is rapid:
Step S1 after precision processing powder precoat filter puts into operation, opens sampling shut-off valve 2, pressure reducing valve 3 and sampling line row
Dirty valve 8 is sampled and observes to the water sample of precision processing powder precoat filter main water outlet pipe 1, when in water sample without obvious iron
After the foreign matters such as grain, fragment, sample introduction shut-off valve 4, sample introduction pressure maintaining valve 5, the transparent organic glass filter box 6 equipped with filter membrane and detection are opened
Pipeline blowdown valve 7；
Step S2 closes sampling line blowdown valve 8, adjusts sample introduction pressure maintaining valve 5, and filter box inlet gage 9 is kept to stablize；Dress
There is the filter membrane in the transparent organic glass filter box 6 of filter membrane to start gradually to collect the powdex being bled into water sample, when being collected into
After a certain amount of powdex, the inflow and outflow of the transparent organic glass filter box 6 equipped with filter membrane will form certain pressure difference；
Step S3 is determined respectively using filter box inlet gage 9 and filter box discharge pressure table 10, uses difference gauge
The difference of 11 pairs of disengaging water sample pressure is measured；
Step S4 transmits signal when 11 numerical value of difference gauge is more than setting value to combined aural and visual alarm 12, combined aural and visual alarm 12
It makes a sound and warning blinker, operations staff obtains alarm at the first time, the visual observation that is on the scene has equipped with the transparent of filter membrane
Filter membrane in machine glass filter box 6 has collected a large amount of powdexes, then confirms that precision processing powdex is leaked, and decision pair
Precision processing powder precoat filter takes stoppage in transit measure, to avoid state of affairs further expansion.
The transparent organic glass filter box 6 that the present invention is equipped with filter membrane is filtered the powdex being bled into water sample
It collects and forms Inlet and outlet water pressure difference；Box inlet gage 9 is filtered using 11 pairs of difference gauge and filters what box discharge pressure table 10 measured
Pressure difference value is measured, and is caused alarm and be achieved in on-line monitoring function；Will filter box be arranged to transparent visual, in order to
Line monitoring sending reminds the powdex situation collected on personnel on site's visual observation filter membrane after alarming, artificial finally true to realize
Recognize.
Specifically, by taking the on-line monitoring of power plant's precision processing powder precoat filter operation as an example, to of the present invention one
The method of kind precision processing powdex leakage on-line monitoring is illustrated.
As shown in Figure 1, opening sampling shut-off valve (2), pressure reducing valve (3) after precision processing powder precoat filter puts into operation first
With sampling line blowdown valve (8), the water sample of precision processing powder precoat filter main water outlet pipe (1) is sampled and is observed, when
In water sample without foreign matters such as obvious iron particle, fragments after, open sample introduction shut-off valve (4), sample introduction pressure maintaining valve (5), equipped with the saturating of filter membrane
Bright organic glass filter box (6) and signal piping blowdown valve (7)；
Secondly, closing sampling line blowdown valve (8), adjust sample introduction pressure maintaining valve (5), keeps filter box inlet gage (9) ratio
It is more stable；As the filter membrane in transparent organic glass filter box (6) equipped with filter membrane starts gradually to collect powdex, when being collected into
After a certain amount of powdex, the inflow and outflow of transparent organic glass filter box (6) equipped with filter membrane forms certain pressure difference,
Filter box inlet gage (9) and filter box discharge pressure table (10) are determined respectively and by difference gauge (11) to disengaging water sample pressure
The measurement of power difference；
Finally, transmission signal to combined aural and visual alarm 12, combined aural and visual alarm 12 is sent out when 11 numerical value of difference gauge is more than setting value
Sound and warning blinker out, operations staff obtain alarm at the first time, and the visual observation that is on the scene is transparent organic equipped with filter membrane
Whether the filter membrane in glass filter box 6 has collected a large amount of powdexes；After combined aural and visual alarm 12 sounds, operations staff judges at essence
Reason powdex very likely leaks；Range estimation is equipped with the filter in transparent organic glass filter box (6) of filter membrane after reaching scene
When film has collected a large amount of powdexes, confirmation precision processing powdex is leaked, and arranges to cover precision processing powder immediately
Filter takes stoppage in transit measure, then carries out maintenance inspection to filter apparatus, to avoid state of affairs further expansion；If nothing on filter membrane
Obvious powdex and to have part iron particle fragment etc. abnormal, it is believed that device wrong report, check device are replaced filter membrane, are rushed again
Sampling line is washed, on-Line Monitor Device is reruned；If 12 alarm free of combined aural and visual alarm, which is believed that, does not find that powdex leaks
Situation can carry out daily regular mesh to the filter membrane in the transparent organic glass filter box 6 equipped with filter membrane when day-to-day operation personnel patrol
It surveys, the reliability of scene confirmation on-Line Monitor Device.
A kind of method and apparatus of precision processing powdex leakage on-line monitoring provided by the invention, can be to precision processing
The leakage of filter powdex provides accurate, timely and reliable alarm, including sampling system and detection system.Sampling system is used
Stablize in feeding detection system in sampling in precision processing powder precoat filter main water outlet pipe and by water sample；The detection system
The pressure difference for filtering the powdex in water sample and detection is consequently formed of uniting sounds an alarm in turn prompts powdex
Leakage；Transparent organic glass filter box equipped with filter membrane is the core component of the present apparatus, and it is real on the one hand to form pressure difference generation alarm
Present line monitoring function, when the setting of another aspect transparent visual filter membrane is convenient for daily inspect periodically with device sending leakage alarms
Whether the powdex situation verification warning note collected on personnel to live visual observation filter membrane is accurate, artificial final to realize
Confirmation.
Those skilled in the art will readily occur to other embodiment party of the invention after considering the disclosure of specification and practice
Case.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or adaptability
Variation follows general principle of the invention and including the undocumented common knowledge or usual skill in the art of the present invention
Art means.Embodiment in specification is considered only as illustratively, and the true scope of the application is determined by claims.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And it can carry out various modifications and change within without departing from the scope.Protection scope of the present invention is defined by the claims.
Claims (7)
1. a kind of precision processing powdex leaks on-Line Monitor Device, which is characterized in that including sampling system and detection system；Its
In,
Sampling system includes sampling shut-off valve (2), sampling pressure reducing valve (3), sample introduction shut-off valve (4), sample introduction pressure maintaining valve (5), detection
Pipeline blowdown valve (7) and sampling line blowdown valve (8), detection system include transparent organic glass filter box (6), filter equipped with filter membrane
Box inlet gage (9), filter box discharge pressure table (10), difference gauge (11) and combined aural and visual alarm (12)；
The import of sampling shut-off valve (2) is connect with sample tap, is exported and is connect with the import of sampling pressure reducing valve (3), sampling decompression
The outlet of valve (3) is divided into two-way, connect all the way with the import of sampling line blowdown valve (8), another way and sample introduction shut-off valve (4)
Import connection, the outlet of sample introduction shut-off valve (4) are connect with the import of sample introduction pressure maintaining valve (5), and the outlet of sample introduction pressure maintaining valve (5) is divided into
Two-way is connect with the import of filter box inlet gage (9) all the way, and another way filters box (6) with the transparent organic glass equipped with filter membrane
Import connection, equipped with filter membrane transparent organic glass filter box (6) outlet be divided into two-way, all the way with signal piping blowdown valve
(7) import connection, another way with filter box discharge pressure table (10) import connect, filter box inlet gage (9) outlet with
The outlet of filter box discharge pressure table (10) is connect with the import of difference gauge (11), and combined aural and visual alarm (12) and difference gauge (11) are even
It connects, difference gauge (11) is used to calculate filter box inlet gage (9) and filter the pressure difference of box discharge pressure table (10), combined aural and visual alarm
(12) it is made a sound and illumination alarm after the signal for receiving difference gauge (11) sending.
2. a kind of precision processing powdex according to claim 1 leaks on-Line Monitor Device, which is characterized in that Ge Gelian
Adapter tube road is the TP304 hollow stainless steel tube of diameter 8mm.
3. a kind of precision processing powdex according to claim 1 leaks on-Line Monitor Device, which is characterized in that sample train
Sample tap in system is arranged in precision processing powder precoat filter main water outlet pipe (1), covers for monitoring the multiple powder of precision processing
The water outlet of lid filter.
4. a kind of precision processing powdex according to claim 1 leaks on-Line Monitor Device, which is characterized in that setting takes
Sample pressure reducing valve (3) reduces sampling pressure to 0.6MPa or less before sample introduction shut-off valve (4) and sampling line blowdown valve (8).
5. a kind of precision processing powdex according to claim 1 leaks on-Line Monitor Device, which is characterized in that detection system
In system, one 5 μm of precision of filter membrane is placed in transparent organic glass filter box (6) equipped with filter membrane, for simulating same precision
Interception of the filter filtering element to powdex filters water sample and acquires the powdex being bled into water sample；It is certain when being collected into
After the powdex of amount, the inflow and outflow of transparent organic glass filter box (6) equipped with filter membrane forms certain pressure difference, respectively
With filter box inlet gage (9) and filter box discharge pressure table (10) measurement, difference gauge (11) carries out disengaging water sample pressure difference value
Measurement；When difference gauge (11) numerical value is more than setting value, transmission signal to combined aural and visual alarm (12), combined aural and visual alarm (12) are issued
Sound and warning blinker.
6. a kind of precision processing powdex according to claim 1 leaks on-Line Monitor Device, which is characterized in that setting dress
Transparent organic glass filter box (6) for having filter membrane be it is visual transparent, facilitate the gleanings on personnel's visual observation filter membrane.
7. a kind of method of precision processing powdex leakage on-line monitoring, which is characterized in that this method is based on claim 1 to 6
Any one of described in a kind of precision processing powdex leak on-Line Monitor Device, comprising the following steps:
Step S1 after precision processing powder precoat filter puts into operation, opens sampling shut-off valve (2), pressure reducing valve (3) and sampling line row
Dirty valve (8), is sampled and observes to the water sample of precision processing powder precoat filter main water outlet pipe (1), when nothing is obvious in water sample
After iron particle, fragment foreign matter, sample introduction shut-off valve (4), sample introduction pressure maintaining valve (5), the transparent organic glass filter box equipped with filter membrane are opened
(6) and signal piping blowdown valve (7)；
Step S2 is closed sampling line blowdown valve (8), is adjusted sample introduction pressure maintaining valve (5), and filter box inlet gage (9) is kept to stablize；
Filter membrane in transparent organic glass filter box (6) equipped with filter membrane starts gradually to collect the powdex being bled into water sample, works as receipts
After collecting a certain amount of powdex, the inflow and outflow of transparent organic glass filter box (6) equipped with filter membrane will form certain
Pressure difference；
Step S3 is determined respectively using filter box inlet gage (9) and filter box discharge pressure table (10), uses difference gauge
(11) difference of disengaging water sample pressure is measured；
Step S4 transmits signal when difference gauge (11) numerical value is more than setting value to combined aural and visual alarm (12), combined aural and visual alarm
(12) it makes a sound and warning blinker, operations staff obtains alarm at the first time, the visual observation that is on the scene is saturating equipped with filter membrane
Filter membrane in bright organic glass filter box (6) has collected a large amount of powdexes, then confirms that precision processing powdex is leaked, and
Decision takes stoppage in transit measure to precision processing powder precoat filter.
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Application publication date: 20190614 |