CN109656222A - Intelligent online analyzes pretreatment system - Google Patents
Intelligent online analyzes pretreatment system Download PDFInfo
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- CN109656222A CN109656222A CN201910066042.8A CN201910066042A CN109656222A CN 109656222 A CN109656222 A CN 109656222A CN 201910066042 A CN201910066042 A CN 201910066042A CN 109656222 A CN109656222 A CN 109656222A
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- 238000004458 analytical method Methods 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 238000010992 reflux Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000004880 explosion Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 4
- 239000013618 particulate matter Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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]
-
- 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]
- G05B19/4183—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 data acquisition, e.g. workpiece identification
-
- 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
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25232—DCS, distributed control system, decentralised control unit
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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)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of intelligent onlines to analyze pretreatment system, include the big reflux inlet of a sample and the big bypass outlet of a sample, the downstream of the big reflux inlet of sample is equipped with a sample entrance stop valve and an online self-cleaning by pass filter, online self-cleaning by pass filter includes a first entrance, first outlet and a Bypass outlet, the downstream of Bypass outlet is equipped with an online rotary and centrifugal type filter, the downstream of online rotary and centrifugal type filter is equipped with an air cooler, and it also includes a PLC control system that intelligent online, which analyzes pretreatment system,.Intelligent online analysis pretreatment system of the invention has the advantage that using big return-flow structure, sample flow is without hindrance, sampling is timely rapidly, it is able to achieve filter automatic cleaning function, it is non-maintaining, can temperature to the sample of on-line analysis, pressure, flow parameter carry out acquisition and intelligent control in real time, intelligence degree is high.
Description
Technical field
The present invention relates to a kind of on-line analysis systems, more precisely, being a kind of intelligent online analysis pretreatment system.
Background technique
Can more or less there be the case where particulate matter and impurity in the sampling sample of on-line analysis system, it is more universal at present
Way be that filtration of particulate matters and impurity are achieved the purpose that using straight-through filter.Since straight-through filter is single-entry single-out
Structure, the particulate matter and impurity of filtering can not be discharged or cause in time pipeline blockage or carry out frequent cleaning and more
It changes, this not only limits the filtering accuracy (not being preferably less than 100 μm) of sample, and considerably increases maintenance.Therefore one is needed
Kind of filtering accuracy is high and the filtration system of Maintenance free replaces traditional filter.
Furthermore adopting for the data such as temperature, pressure, flow is often carried out in on-line analysis pretreatment system use process
Collection, to grasp the shape body of analysis sample in real time, traditional mode is not only taken in this way by manually carrying out data acquisition on the spot
When expenses of labour, and the environmental condition at device scene is relatively more severe and complicated, and there is a certain security risk, it is therefore desirable to Yi Zhongneng
The pretreatment system of intelligent online data acquisition and control.
Summary of the invention
The present invention mainly solves technical problem present in the prior art, to provide a kind of pre- place of intelligent online analysis
Reason system.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
A kind of intelligent online analysis pretreatment system, which is characterized in that the intelligent online analyzes pretreatment system packet
Containing the big reflux inlet of a sample and the big bypass outlet of a sample, the big reflux inlet of the sample and the big bypass outlet access of sample
Into sample process pipelines, the downstream of the big reflux inlet of the sample is equipped with a sample entrance stop valve and an online self-cleaning
By pass filter, the online self-cleaning by pass filter includes a first entrance, first outlet and a Bypass outlet, described
The outlet end of sample inlet stop valve be connected with the first entrance, the first outlet passes through a sample throttle valve
Be connected after exporting stop valve with a sample with the big bypass outlet of the sample, the downstream of the Bypass outlet be equipped with one
Line rotary and centrifugal type filter, the online rotary and centrifugal type filter include a second entrance, a second outlet and a mistake
Mouth is filtered out, the Bypass outlet is connected with the second entrance, and the second outlet is cut with the sample export
The arrival end of disconnected valve is connected, and the downstream of the online rotary and centrifugal type filter is equipped with an air cooler, and described is air-cooled
But the arrival end of device is connected with the filtering outlet, and the outlet end of the air cooler is successively arranged a pneumatic cutting
Valve, a pressure reducing valve, flow meters and an analyzer, the outlet end of the air cooler are additionally provided with an explosion-proof temperature transmitter,
The side of the air cooler is equipped with a scroll refrigerant pipe, and the outlet end of the pressure reducing valve is equipped with an explosion-proof explosion-proof pressure and becomes
Device is sent, an explosion-proof flow transmitter is additionally provided on the flowmeter,
The intelligent online analysis pretreatment system also includes a PLC control system, the PLC control system difference
It is electrically connected with the explosion-proof temperature transmitter, explosion-proof explosion-proof pressure transmitter and explosion-proof flow transmitter, the PLC control
System is connected by an explosion-proof solenoid valve with the control terminal of the pneumatic cut-off valve, and the PLC control system passes through one
Anti-explosion electric regulating valve is connected with the scroll refrigerant pipe.
As preferred embodiments of the present invention, the PLC control system is electrically connected with a DCS control room.
Intelligent online analysis pretreatment system of the invention has the advantage that
1, using big return-flow structure, sample flow is without hindrance, and sampling is timely rapidly；
2, it is able to achieve filter automatic cleaning function, it is non-maintaining；
3, using double-stage filtering, filter efficiency is effectively improved；
4, level of integrated system is high, and the lag time of analysis is short；
5, can temperature to the sample of on-line analysis, pressure, flow parameter carry out acquisition and intelligent control in real time；
6, intelligence degree is high, while saving artificial, reduces security risk；
7, remote real-time monitoring can be carried out in DCS control room, data are accurately and timely, high-efficient.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structure connection diagram that intelligent online of the invention analyzes pretreatment system；
Fig. 2 is the structural schematic diagram of the online self-cleaning by pass filter of the intelligent online analysis pretreatment system in Fig. 1；
Fig. 3 is the structural schematic diagram of the online rotary and centrifugal type filter of the intelligent online analysis pretreatment system in Fig. 1；
Fig. 4 is schematic cross-sectional view of the online rotary and centrifugal type filter in Fig. 3 along G-G line；
Wherein:
1 --- the big reflux inlet of sample；
2 --- the big bypass outlet of sample；
3 --- sample inlet stop valve；
4 --- online self-cleaning by pass filter；
5 --- sample throttle valve；
6 --- sample export stop valve；
7 --- online rotary and centrifugal type filter；
8 --- anti-explosion electric regulating valve；
9 --- scroll refrigerant pipe；
10 --- air cooler；
11 --- explosion-proof temperature transmitter；
12 --- pneumatic cut-off valve；
13 --- explosion-proof solenoid valve；
14 --- pressure reducing valve；
15 --- explosion-proof explosion-proof pressure transmitter；
16 --- flowmeter；
17 --- explosion-proof flow transmitter；
18 --- PLC control system；
19 --- analyzer；
20 --- DCS control room.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figures 1 to 4, intelligent online analysis pretreatment system includes the big reflux inlet 1 of a sample and a sample
Big bypass outlet 2, the big reflux inlet 1 of the sample and the big bypass outlet 2 of sample are linked into sample process pipelines, which returns greatly
The downstream of inflow entrance 1 is equipped with a sample entrance stop valve 3 and an online self-cleaning by pass filter 4, the online self-cleaning bypass
Filter 4 include a first entrance 41, first outlet 43 and a Bypass outlet 42, the outlet end of the sample inlet stop valve 3 with
The first entrance 41 is connected, the first outlet 43 by a sample throttle valve 5 and a sample outlet stop valve 6 after with the sample
Big bypass outlet 2 is connected, and the downstream of the Bypass outlet 42 is equipped with an online rotary and centrifugal type filter 7, this is online rotate from
Core type filter 7 includes a second entrance 71, a second outlet 72 and a filtering outlet 73, which second enters with this
Mouth 71 is connected, which is connected with the arrival end of the sample export stop valve 6, online rotary and centrifugal type filtering
The downstream of device 7 is equipped with an air cooler 10, and the arrival end of the air cooler 10 is connected with the filtering outlet 73, the air cooler
10 outlet end is successively arranged a pneumatic cut-off valve 12, a pressure reducing valve 14, flow meters 16 and an analyzer 19, the air cooler
10 outlet end is additionally provided with an explosion-proof temperature transmitter 11, and the side of the air cooler 10 is equipped with a scroll refrigerant pipe 9, the decompression
The outlet end of valve 14 is equipped with an explosion-proof explosion-proof pressure transmitter 15, is additionally provided with an explosion-proof flow transmitter 17 on the flowmeter 16.
Intelligent online analysis pretreatment system also includes a PLC control system 18, the PLC control system 18 respectively with this
Explosion-proof temperature transmitter 11, explosion-proof explosion-proof pressure transmitter 15 and explosion-proof flow transmitter 17 are electrically connected, the PLC control system 18
It is connected by an explosion-proof solenoid valve 13 with the control terminal of the pneumatic cut-off valve 12, which passes through an anti-explosion electric
Dynamic regulating valve 8 is connected with the scroll refrigerant pipe 9.
The PLC control system 18 is also electrically connected with a DCS control room 20.
As shown in Fig. 2, the inside of the online self-cleaning by pass filter 4 be equipped with filter core 40, sample from first entrance 41 into
Enter, and returned from first outlet 43, is then flowed out from Bypass outlet 42 by the sample of filter element filtering.As primary filter,
Big particle object in sample stops, and is gathered in 40 surface of filter core, by washing away for sample, the particulate matter of aggregation is returned with sample
Into process pipe.Sample washing away to the particulate matter of aggregation is reduced in order not to make sample generate vortex phenomenon in cartridge surface
Power is set as a plane in the inner surface of filter core and sample transfer pipeline, and such sample flow is without hindrance, to cartridge surface shape
At lasting scouring force, the function to filter core self-cleaning is realized.In addition, the online self-cleaning by pass filter 4 passes through two sides
Face shortens the lag time of sample analysis: on the one hand, by pass filter uses big return-flow structure, sample conveying tube be internal diameter compared with
Big steel pipe (may be configured as 3/4 " or 1 " pipe pipe), and sample flow is fast through the speed of filter, obtain in this way real-time sample when
Between it is shorter；On the other hand, the volume of the chamber portion B between the shell and filter core of filter is arranged small as far as possible, about
45cm3, while guaranteeing filtered sample enough flow rate, so that filter dead volume region minimizes, to improve point
It analyses the authenticity of sample and reduces lag time.
As shown in Figure 3 and Figure 4, the inside of the online rotary and centrifugal type filter 7 is equipped with filter core 70, and sample is from second entrance
71 enter, and the return duct from second outlet 72, then flow out from filtering outlet 73 by the sample of filter element filtering.Due to sample
The inlet and outlet of product are tangent with the top bottom of the housing cavity of the online rotary and centrifugal type filter 7, this ensure that through bypassing
Sample after filter primary filter is that tangential motion is done along shell in rotary and centrifugal type filter inner cavity, forms circumferential rail
Mark, under the influence of centrifugal force, sample can be layered in the lumen, and wherein larger particles are close to housing wall, and shell
Inwall processing is at more smooth curved surface, so that particulate matter will not be bonded on inner wall, but is arranged behind circumferential track by outlet
Out, the probability that particulate matter gathers in cartridge surface is further reduced, achievees the effect that run steadily in the long term.Moreover, online
Rotary and centrifugal type filter increases the circulation area of sample using double filter cartridge constructions, improves filter efficiency.Further, exist
Line rotary and centrifugal type filter effectively shortens the lag time of sample analysis by following two aspect: on the one hand, end cap A and filter
Cavity E volume between cavity D volume and end cap B and filter core between core minimizes, only 3.5cm3；On the other hand,
The sample flow path of analysis meter is gone to be arranged in valve inner, stroke is shorter, and integrated level is higher.This two aspect guarantees filtered sample
While product enough flow rate, so that filter dead volume region minimizes, to improve the authenticity of analysis sample and reduction
Lag time.
The course of work of intelligent online analysis pretreatment system is illustrated below.
After the big reflux inlet 1 of sample and the big bypass outlet 2 of sample are accessed process pipe, sample inlet stop valve 3 is opened
With sample export stop valve 6, liquid (or gas) sample enters intelligent online analysis pretreatment system.
By adjusting sample throttle valve 5, so that there are pressure differences for the front stage of online self-cleaning by pass filter 4, online certainly
It cleans and 100 μm of filter cores is set in by pass filter 4, coarse particulate matter or impurity are filtered, then as rushing for fluid sample
Brush, is discharged by the big bypass outlet 2 of sample, realizes the function of self-cleaning.By liquid (or gas) sample of primary filter, in pressure difference
Under the action of, online rotary and centrifugal type filter 7 is reached, second is carried out and filters.
There is quick flow passage structure inside online rotary and centrifugal type filter 7, by the sample of circumferential movement, in centrifugal force
It is flowed out with thin impurity sample by quick flow path under effect, returns to process pipe, another part sample through sample export stop valve 6
Be set 5 μm of twin-stage filter cores after line rotary and centrifugal type filter 7, flow through air cooler 10 and cool down, cool down
Sample passes sequentially through explosion-proof temperature transmitter 11, pneumatic cut-off valve 12, pressure reducing valve 14, explosion-proof pressure transmitter 15, flowmeter afterwards
16, the sample of last each parameter qualification enters analyzer 19 and is analyzed.
In the process, the temperature of sample, pressure, flow parameter are preset inside PLC control system 18,
It is illustrated further below.
The first, when the real time temperature that temperature transmitter 11 acquires has been more than PLC preset value a certain range, PLC control system
18 export all the way it is equal than electric signal to anti-explosion electric regulating valve 8, increase valve opening, the instrument into scroll refrigerant pipe 9 is empty
Throughput increases, while the refrigerating capacity of air cooler 10 becomes larger, sample temperature decline；When the real-time temperature that temperature transmitter 11 acquires
Degree is lower than PLC preset value a certain range, and PLC control system 18 exports to be waited than electric signal to anti-explosion electric regulating valve 8 all the way, makes valve
Door aperture reduces, and into the instrument air flow-reduction of scroll refrigerant pipe 9, while the refrigerating capacity of air cooler 10 becomes smaller, sample
Temperature increases, and so recycles, to reach the stabilization of sample temperature in system.
The second, elevated pressures sample becomes the lower pressure for meeting instrumental analysis requirement after the decompression of pressure reducing valve 14, when
The real-time pressure value that pressure transmitter 15 acquires has been more than PLC preset value a certain range, or is lower than the certain model of PLC preset value
It encloses, PLC control system 18 simultaneously exports electric signal to explosion-proof solenoid valve 13, this valve is opened immediately, the pneumatic cutting of instrument air driving
Valve 12 is closed, and sample flow path is interrupted at this time, achievees the purpose that protect analyzer 19.
Third, by the flow of sample in 16 systems stabilisation of flowmeter, and by explosion-proof flow transmitter 17 by real-time streams
Magnitude is transferred to PLC control system 18, certain when flow value has been more than PLC preset value a certain range, or lower than PLC preset value
Range, PLC control system 18 simultaneously export electric signal to explosion-proof solenoid valve 13, this valve is opened immediately, and instrument air driving is pneumatically cut
Disconnected valve 12 is closed, and sample flow path is interrupted at this time, achievees the purpose that protect analyzer 19.
4th, the temperature in system, pressure, the real time data of flow can be transferred to DCS by PLC control system 18
Control room 20 carries out real time data inspecting.
Intelligent online analysis pretreatment system has the advantages that
1, using big return-flow structure, sample flow is without hindrance, and sampling is timely rapidly；
2, it is able to achieve filter automatic cleaning function, it is non-maintaining；
3, using double-stage filtering, filter efficiency is effectively improved；
4, level of integrated system is high, and the lag time of analysis is short；
5, can temperature to the sample of on-line analysis, pressure, flow parameter carry out acquisition and intelligent control in real time；
6, intelligence degree is high, while saving artificial, reduces security risk；
7, remote real-time monitoring can be carried out in DCS control room, data are accurately and timely, high-efficient.
Not limited to this, any change or replacement expected without creative work should all be covered in guarantor of the invention
Within the scope of shield.Therefore, protection scope of the present invention should be determined by the scope of protection defined in the claims.
Claims (2)
1. a kind of intelligent online analyzes pretreatment system, which is characterized in that the intelligent online analyzes pretreatment system and includes
The big reflux inlet of a sample (1) and the big bypass outlet of a sample (2), the big reflux inlet of the sample (1) and the big reflux of sample
Outlet (2) is linked into sample process pipelines, and the downstream of the big reflux inlet of the sample (1) is equipped with a sample entrance stop valve
(3) and an online self-cleaning by pass filter (4), the online self-cleaning by pass filter (4) include a first entrance
(41), first outlet (43) and a Bypass outlet (42), the outlet end of the sample inlet stop valve (3) and described first
Entrance (41) is connected, the first outlet (43) by a sample throttle valve (5) and a sample outlet stop valve (6) after with
The big bypass outlet of the sample (2) is connected, and the downstream of the Bypass outlet (42) is equipped with an online rotary and centrifugal type mistake
Filter (7), the online rotary and centrifugal type filter (7) include a second entrance (71), a second outlet (72) and a mistake
Filter out mouth (73), the Bypass outlet (42) is connected with the second entrance (71), the second outlet (72) with
The arrival end of the sample export stop valve (6) is connected, and the downstream of the online rotary and centrifugal type filter (7) is equipped with
One air cooler (10), the arrival end of the air cooler (10) are connected with the filtering outlet (73), the wind
The outlet end of cooler (10) is successively arranged a pneumatic cut-off valve (12), a pressure reducing valve (14), flow meters (16) and an analysis
Instrument (19), the outlet end of the air cooler (10) are additionally provided with an explosion-proof temperature transmitter (11), the air cooler
(10) side is equipped with a scroll refrigerant pipe (9), and the outlet end of the pressure reducing valve (14) is equipped with an explosion-proof explosion-proof pressure pick-up
Device (15) is additionally provided with an explosion-proof flow transmitter (17) on the flowmeter (16),
The intelligent online analysis pretreatment system also includes a PLC control system (18), the PLC control system (18)
It is electrically connected respectively with the explosion-proof temperature transmitter (11), explosion-proof explosion-proof pressure transmitter (15) and explosion-proof flow transmitter (17)
It connects, the PLC control system (18) passes through the control terminal phase of an explosion-proof solenoid valve (13) and the pneumatic cut-off valve (12)
Connection, the PLC control system (18) are connected by an anti-explosion electric regulating valve (8) with the scroll refrigerant pipe (9).
2. intelligent online according to claim 1 analyzes pretreatment system, which is characterized in that the PLC control system
(18) it is electrically connected with a DCS control room (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066042.8A CN109656222A (en) | 2019-01-24 | 2019-01-24 | Intelligent online analyzes pretreatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066042.8A CN109656222A (en) | 2019-01-24 | 2019-01-24 | Intelligent online analyzes pretreatment system |
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| CN109656222A true CN109656222A (en) | 2019-04-19 |
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ID=66120968
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910066042.8A Pending CN109656222A (en) | 2019-01-24 | 2019-01-24 | Intelligent online analyzes pretreatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235507A (en) * | 2021-11-16 | 2022-03-25 | 上海汉克威自动化科技有限公司 | Sampling calibration pretreatment system for EOEG device |
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| CN114235507A (en) * | 2021-11-16 | 2022-03-25 | 上海汉克威自动化科技有限公司 | Sampling calibration pretreatment system for EOEG device |
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Application publication date: 20190419 |