CN107192736A - A kind of pretreatment system for the low explosion limit analyzers of CIC - Google Patents
A kind of pretreatment system for the low explosion limit analyzers of CIC Download PDFInfo
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- CN107192736A CN107192736A CN201710483221.2A CN201710483221A CN107192736A CN 107192736 A CN107192736 A CN 107192736A CN 201710483221 A CN201710483221 A CN 201710483221A CN 107192736 A CN107192736 A CN 107192736A
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- bypass
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- stop valve
- cic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a kind of pretreatment system for the low explosion limit analyzers of CIC, including the sampling probe on tested pipeline, sampling probe connects main road bypass strainer import by sample introduction pipeline, main road bypass strainer main road exports linking parsing instrument import, the connection main import of main road Venturi transmission ejector of main road bypass strainer bypass outlet；Analyzer counter sample mouthful connects counter sample pipeline by instrument waste emission pipeline；The import and export of main road bypass strainer are equipped with main road stop valve；Main road Venturi transmission ejector injection driving medium entrance connection instrument air enters pipeline；The outlet connection counter sample pipeline of main road Venturi transmission ejector, counter sample pipeline connection tested pipeline.Also include with main road function phase with, be used as the bypass of standby design.The present invention is simple in construction, easy to operate, solves the blockage problem of CIC analyzers on the incinerator of pharmaceutical factory, reduces maintenance rate and maintenance cost, while Redundancy Design allows whole incinerator system without parking maintenance.
Description
Technical field
The present invention relates to a kind of pretreatment system for the low explosion limit analyzers of CIC, belong to petrochemical industry in-line analyzer
Technical field.
Background technology
CIC analyzers (Control Instruments Corporation companies of U.S. gas analyzer) are according to design
Installed using in-situ type, its Cleaning Principle is：Sample is aspirated into outfit by the Venturi transmission ejector positioned at detection unit downstream
There is the detection cell of hydrogen flame nozzle, igniter, thermocouple, contain fuel gas if be inhaled into gas, fuel gas will
Lighted by hydrogen flame, thus produce additional heat, cause the temperature that thermocouple measurement is arrived to rise, its temperature rises and is tested gas
In the presence of certain mathematical relationship, measurement is achieved in.
Compared with the low explosion limit analyzer of infrared principles and the low explosion limit analysis of principle of catalyst combustion, CIC is low
Explosion limit analyzer is without selectivity, therefore, it is possible to measure low explosion limit caused by all imflammable gas, extensively peace
In import loaded on current country thermal accumulating incinerator in the ascendant.But in practical application, due to the filtering of CIC analyzers
The limitation of ability, because taking place frequently blocking in the application in pharmaceutical factory, can cause the situation that incinerator must not be not parking, add maintenance
Rate and maintenance cost, influence the operating efficiency of whole system.
The content of the invention
The technical problem to be solved in the present invention is how on the premise of lag time is not sacrificed, to solve on the incinerator of pharmaceutical factory
CIC analyzer blockage problems, reduce maintenance rate and maintenance cost.
In order to solve the above-mentioned technical problem, analyzed the technical scheme is that providing a kind of low explosion limits of CIC that are used for
The pretreatment system of instrument, it is characterised in that：Including the sampling probe on tested pipeline, sampling probe connection sample introduction pipeline one
End, sample introduction pipeline other end connection main road bypass strainer sample inlet, main road bypass strainer main road outlet connection CIC analyses
Instrument import, the connection main import of main road Venturi transmission ejector of main road bypass strainer bypass outlet；CIC analyzers counter sample mouthful passes through instrument
Table waste emission pipeline connects counter sample pipeline；
The pipeline that sample introduction pipeline is connected with main road bypass strainer is provided with the first main road stop valve, main road bypass strainer
The pipeline being connected with CIC analyzers is provided with the second main road stop valve, and main road bypass strainer connects with main road Venturi transmission ejector
The pipeline connect is provided with the 3rd main road stop valve and main road check valve；
Main road Venturi transmission ejector injection driving medium entrance connection instrument air enters pipeline, and instrument air enters pipeline
It is provided with instrument air stop valve and instrument air pressure-reducing valve；The outlet connection counter sample pipeline of main road Venturi transmission ejector, counter sample
Pipeline connects tested pipeline.
Preferably, on the pipeline that the main road bypass strainer is connected with main road Venturi transmission ejector main road is additionally provided with to regard
Mirror.
Preferably, in addition to bypass；The sample introduction pipeline other end is also connected with bypass bypass strainer sample inlet, bypass
Bypass strainer bypass outlet connection CIC analyzers, bypass bypass strainer bypass outlet connection bypass Venturi transmission ejector master
Import；
The pipeline that sample introduction pipeline is connected with bypass bypass strainer is provided with the first bypass stop valve, bypass bypass strainer
The pipeline being connected with CIC analyzers is provided with the second bypass stop valve, and bypass bypass strainer connects with bypass Venturi transmission ejector
The pipeline connect is provided with the 3rd bypass stop valve and bypass check valve；
Three ports of instrument air tee ball valve connect instrument air and drawn into pipeline, main road Venturi transmission ejector respectively
Driving medium entrance and bypass Venturi transmission ejector injection driving medium entrance are penetrated, the outlet of bypass Venturi transmission ejector is also connected
Counter sample pipeline.
Preferably, on the pipeline that the bypass bypass strainer is connected with bypass Venturi transmission ejector bypass is additionally provided with to regard
Mirror.
Preferably, when main road works, the first main road stop valve, the second main road stop valve, the 3rd main road stop valve are opened,
First bypass stop valve, the second bypass stop valve, the 3rd bypass stop valve are turned off, instrument air tee ball valve it is empty with instrument
Gas enters the port that pipeline is connected and the port UNICOM for driving medium entrance to be connected with main road Venturi transmission ejector injection.
Preferably, when bypass works, the first main road stop valve, the second main road stop valve, the 3rd main road stop valve are turned off,
First bypass stop valve, the second bypass stop valve, the 3rd bypass stop valve are opened, instrument air tee ball valve it is empty with instrument
Gas enters the port that pipeline is connected and the port UNICOM for driving medium entrance to be connected with bypass Venturi transmission ejector injection.
Preferably, when main road works, waste gas enters sample introduction pipeline via sampling probe, flows through the first main road stop valve, then
Flow into main road bypass strainer；Here, air-flow is divided into two strands：
Wherein one air-flow filtered is flow in analyzer by the second main road stop valve and detected, after the completion of detection
Gas flow through instrument waste emission pipeline from CIC analyzers counter samples mouth, import counter sample pipeline, finally flow back to tested pipeline；
One other air scour takes away the particle on main road bypass strainer filtration core, by the 3rd main road stop valve,
Main road check valve, reaches main road Venturi transmission ejector；Main road Venturi transmission ejector enters the instrument that pipeline enters with instrument air
Air drives medium as injection, adjusts to adjust bypass flow by the pressure to instrument air so that system is integrally delayed
Time reaches regulation requirement；The gas of main road Venturi transmission ejector outlet flows back to tested pipeline by counter sample pipeline.
Preferably, when bypass works, waste gas enters sample introduction pipeline via sampling probe, flows through the first bypass stop valve, then
Flow into bypass bypass strainer；Here, air-flow is divided into two strands：
Wherein one air-flow filtered is flow in CIC analyzers by the second bypass stop valve and detected, has been detected
Gas after flows through instrument waste emission pipeline from CIC analyzers counter sample mouth, imports counter sample pipeline, finally flows back to measured tube
Road；
One other air scour takes away the particle on bypass bypass strainer filtration core, by the 3rd bypass stop valve,
Bypass check valve, reaches bypass Venturi transmission ejector；Bypass Venturi transmission ejector enters the instrument that pipeline enters with instrument air
Air drives medium as injection, adjusts to adjust bypass flow by the pressure to instrument air so that system is integrally delayed
Time reaches regulation requirement；The gas of bypass Venturi transmission ejector outlet flows back to tested pipeline by counter sample pipeline.
Preferably, when the filter core of main road bypass strainer needs to clean or changed, bypass is switched to from main road, specifically
Method is：The first bypass stop valve, the second bypass stop valve, the 3rd bypass stop valve are first opened, switches instrument air three-way ball
Then valve turns off the first main road stop valve, the second main road stop valve, the 3rd main road stop valve, finally opens main road to bypass
Bypass strainer, carries out the cleaning or replacing of filter core；This process is without parking maintenance.
Preferably, main road is switched back into from bypass, specific method is：First open the first main road stop valve, the cut-off of the second main road
Then valve, the 3rd main road stop valve, switching instrument air tee ball valve turn off the first bypass stop valve, second auxiliary to main road
Road stop valve, the 3rd bypass stop valve；This process is without parking maintenance.
The system that the present invention is provided overcomes the deficiencies in the prior art, simple in construction, easy to operate, solves pharmaceutical factory burning
The blockage problem of CIC analyzers, reduces maintenance rate and maintenance cost on stove, at the same Redundancy Design allow whole incinerator system without
Parking maintenance is needed, operating efficiency is improved.
Brief description of the drawings
The pretreatment system structural representation for the low explosion limit analyzers of CIC that Fig. 1 provides for the present embodiment.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
The pretreatment system structural representation for the low explosion limit analyzers of CIC that Fig. 1 provides for the present embodiment, it is described
The pretreatment system for the low explosion limit analyzers of CIC include common component, primary flow path pretreatment system and redundancy secondary flow
Road pretreatment system.According to the circulation order of sample, common component includes sampling probe 1, sample introduction pipeline 2, instrument air cut-off
Valve 9, instrument air pressure-reducing valve 10, instrument air tee ball valve 11, instrument waste emission pipeline 21, counter sample pipeline 22；Primary flow path
Pretreatment system includes：First main road stop valve 3, main road bypass strainer 4, the second main road stop valve 5, the 3rd main road stop valve
6th, main road visor 7, main road check valve 8, main road Venturi transmission ejector 12；Redundancy bypass pretreatment system includes：First bypass is cut
Only valve 13, bypass bypass strainer 14, the second bypass stop valve 15, the 3rd bypass stop valve 16, bypass visor 17, bypass are unidirectional
Valve 18, bypass Venturi transmission ejector 19.
The pretreatment system for the low explosion limit analyzers of CIC that the present embodiment is provided sets primary flow path and secondary flow road.
The technical process of primary flow path is as follows：Waste gas enters sample introduction pipeline 2 via sampling probe 1, flows through the cut-off of the first main road
Valve 3, flows into main road bypass strainer 4 and is filtered.Here, air-flow is divided into two strands.The air-flow wherein filtered passes through
Two main road stop valves 5, flow to analyzer 20, and sample is detected in CIC analyzers 20；Gas after the completion of detection is from CIC
The counter sample mouth of analyzer 20 flows through instrument waste emission pipeline 21, imports counter sample pipeline 22.It is another that main road bypass strainer 4 is separated
One outer air scour takes away the particle on the filtration core of main road bypass strainer 4, by main road visor 7, main road check valve 8, arrives
Up to main road Venturi transmission ejector 12；The effect of main road Venturi transmission ejector can regard air pump as with equivalent, and its injection driving medium is
Instrument air, instrument air passes through instrument air threeway after instrument air stop valve 9 and the pressure regulation of instrument air pressure-reducing valve 10
The main road passage of ball valve 11 supply main road Venturi transmission ejector 12.Main road Venturi transmission ejector 12 passes through empty to its injection medium instrument
The pressure of gas adjusts to adjust bypass flow so that system entirety lag time reaches regulation requirement.Main road Venturi transmission ejector
12 outlet connection counter sample pipelines 22, finally flow back to tested pipeline 23.
The technical process on secondary flow road is as follows：When the main road bypass strainer 4 of primary flow path needs cleaning, secondary flow road is opened
First bypass stop valve 13, the second bypass stop valve 15, the 3rd bypass stop valve 16, switching instrument air tee ball valve 11 arrive auxiliary
Road, is then shut off the first main road stop valve 3, the second main road stop valve 5, the 3rd main road stop valve 6.Now waste gas is visited via sampling
First 1 enters sample introduction pipeline 2, the first bypass stop valve 13 is flowed through, into bypass bypass strainer 14.Here, air-flow is divided into
Two strands, wherein the air-flow filtered is by the second bypass stop valve 15, CIC analyzers 20 are flow to, sample is in CIC analyzers 20
Detected；Gas after the completion of detection flows through instrument waste emission pipeline 21 from the counter sample of CIC analyzers 20 mouth, imports counter sample pipe
Line 22；One other air scour that bypass bypass strainer 14 is separated takes away on the filtration core of bypass bypass strainer 14
Grain, by bypass visor 17, bypass check valve 18, reaches bypass Venturi transmission ejector 19；The work of bypass Venturi transmission ejector 19
With that can regard air pump as with equivalent, its injection driving medium is instrument air, and instrument air passes through instrument air stop valve 9 and instrument
After the pressure regulation of air reducing valve 10, bypass Venturi transmission ejector 19 is supplied by the bypass passage of instrument air tee ball valve 11.Bypass
Venturi transmission ejector 19 adjusts to adjust bypass flow by the pressure to its injection medium instrument air so that system is integrally stagnant
The time reaches regulation requirement afterwards.The outlet of bypass Venturi transmission ejector 19 connection counter sample pipeline 22, finally flows back to tested pipeline 23.
The switching on main and auxiliary road is realized without parking maintenance, specific as follows：Bypass is switched to from main road, first is first opened
Bypass stop valve 13, the second bypass stop valve 15, the 3rd bypass stop valve 16, switching instrument air tee ball valve 11 arrive bypass,
Then the first main road stop valve 3, the second main road stop valve 5, the 3rd main road stop valve 6 are turned off.Then it can open by main road
Pipe filter 4, carries out the cleaning or replacing of filter core.Main road is switched back into from bypass after changing filter core, the first main road is first opened and cuts
Only valve 3, the second main road stop valve 5, the 3rd main road stop valve 6, switch instrument air tee ball valve 11 and arrive main road, then turn off
First bypass stop valve 13, the second bypass stop valve 15, the 3rd bypass stop valve 16.Primary flow path and secondary flow road function phase are same, mutually
For standby, Redundancy Design is realized, whole incinerator system is allowed without parking maintenance.
Claims (10)
1. a kind of pretreatment system for the low explosion limit analyzers of CIC, it is characterised in that：Including located at tested pipeline (23)
On sampling probe (1), sampling probe (1) connection sample introduction pipeline (2) one end, sample introduction pipeline (2) other end connection main road bypass
Filter (4) sample inlet, main road bypass strainer (4) main road outlet connection CIC analyzers (20) import, main road by-passing filter
Device (4) bypass outlet connects main road Venturi transmission ejector (12) main import；CIC analyzers (20) counter sample mouthful passes through the discarded row of instrument
Put pipeline (21) connection counter sample pipeline (22)；
The pipeline that sample introduction pipeline (2) is connected with main road bypass strainer (4) is provided with the first main road stop valve (3), main road bypass
The pipeline that filter (4) is connected with CIC analyzers (20) be provided with the second main road stop valve (5), main road bypass strainer (4) with
The pipeline of main road Venturi transmission ejector (12) connection is provided with the 3rd main road stop valve (6) and main road check valve (8)；
Main road Venturi transmission ejector (12) injection driving medium entrance connection instrument air enters pipeline, and instrument air enters pipeline
It is provided with instrument air stop valve (9) and instrument air pressure-reducing valve (10)；The outlet of main road Venturi transmission ejector (12) is connected back to
Sample pipeline (22), counter sample pipeline (22) connection tested pipeline (23).
2. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 1, it is characterised in that：Institute
State and be additionally provided with main road visor (7) on the pipeline that main road bypass strainer (4) is connected with main road Venturi transmission ejector (12).
3. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 1 or 2, it is characterised in that：
Also include bypass；Sample introduction pipeline (2) other end is also connected with bypass bypass strainer (14) sample inlet, bypass by-passing filter
Device (14) bypass outlet connection CIC analyzers (20), bypass bypass strainer (14) bypass outlet connection bypass venturi injection
Device (19) main import；
The pipeline that sample introduction pipeline (2) is connected with bypass bypass strainer (14) is provided with by the first bypass stop valve (13), bypass
The pipeline that pipe filter (14) is connected with CIC analyzers (20) is provided with the second bypass stop valve (15), bypass bypass strainer
(14) pipeline being connected with bypass Venturi transmission ejector (19) is provided with the 3rd bypass stop valve (16) and bypass check valve (18)；
Three ports of instrument air tee ball valve (11) connect instrument air into pipeline, main road Venturi transmission ejector respectively
(12) injection driving medium entrance and bypass Venturi transmission ejector (19) injection driving medium entrance, bypass Venturi transmission ejector
(19) outlet also connects counter sample pipeline (22).
4. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 3, it is characterised in that：Institute
State and be additionally provided with bypass visor (17) on the pipeline that bypass bypass strainer (14) is connected with bypass Venturi transmission ejector (19).
5. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 3, it is characterised in that：It is main
When road works, the first main road stop valve (3), the second main road stop valve (5), the 3rd main road stop valve (6) are opened, the first bypass
Stop valve (13), the second bypass stop valve (15), the 3rd bypass stop valve (16) are turned off, instrument air tee ball valve (11)
The port being connected with instrument air into pipeline and the end for driving medium entrance to be connected with main road Venturi transmission ejector (12) injection
Mouth UNICOM.
6. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 3, it is characterised in that：It is auxiliary
When road works, the first main road stop valve (3), the second main road stop valve (5), the 3rd main road stop valve (6) are turned off, the first bypass
Stop valve (13), the second bypass stop valve (15), the 3rd bypass stop valve (16) are opened, instrument air tee ball valve (11)
The port being connected with instrument air into pipeline and the end for driving medium entrance to be connected with bypass Venturi transmission ejector (19) injection
Mouth UNICOM.
7. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 5, it is characterised in that：It is main
When road works, waste gas enters sample introduction pipeline (2) via sampling probe (1), flows through the first main road stop valve (3), then flow into main road
Bypass strainer (4)；Here, air-flow is divided into two strands：
Wherein one air-flow filtered is flow in analyzer (20) by the second main road stop valve (5) and detected, has been detected
Gas after flows through instrument waste emission pipeline (21) from CIC analyzers (20) counter sample mouth, imports counter sample pipeline (22), finally
Flow back to tested pipeline (23)；
One other air scour takes away the particle on main road bypass strainer (4) filtration core, by the 3rd main road stop valve
(6), main road check valve (8), reach main road Venturi transmission ejector (12)；Main road Venturi transmission ejector (12) is entered with instrument air
The instrument air that pipeline enters drives medium as injection, adjusts to adjust bypass flow by the pressure to instrument air, makes
The system of obtaining overall lag time reaches regulation requirement；The gas of main road Venturi transmission ejector (12) outlet passes through counter sample pipeline (22)
Flow back to tested pipeline (23).
8. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 6, it is characterised in that：It is auxiliary
When road works, waste gas enters sample introduction pipeline (2) via sampling probe (1), flows through the first bypass stop valve (13), then flow into bypass
Bypass strainer (14)；Here, air-flow is divided into two strands：
Wherein one air-flow filtered is flow in CIC analyzers (20) by the second bypass stop valve (15) and detected, is examined
Gas after the completion of survey flows through instrument waste emission pipeline (21) from CIC analyzers (20) counter sample mouth, imports counter sample pipeline (22),
Finally flow back to tested pipeline (23)；
One other air scour takes away the particle on bypass bypass strainer (14) filtration core, by the 3rd bypass stop valve
(16), bypass check valve (18), reach bypass Venturi transmission ejector (19)；Bypass Venturi transmission ejector (19) is entered with instrument air
Enter the instrument air of pipeline entrance as injection driving medium, adjust to adjust bypass flow by the pressure to instrument air,
So that system entirety lag time reaches regulation requirement；The gas of bypass Venturi transmission ejector (19) outlet passes through counter sample pipeline
(22) tested pipeline (23) is flowed back to.
9. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 1, it is characterised in that：When
When the filter core of main road bypass strainer (4) needs to clean or changed, bypass is switched to from main road, specific method is：First open
First bypass stop valve (13), the second bypass stop valve (15), the 3rd bypass stop valve (16), switch instrument air tee ball valve
(11) bypass is arrived, the first main road stop valve (3), the second main road stop valve (5), the 3rd main road stop valve (6) is then turned off, most
Main road bypass strainer (4) is opened afterwards, carries out the cleaning or replacing of filter core；This process is without parking maintenance.
10. a kind of pretreatment system for the low explosion limit analyzers of CIC as claimed in claim 9, it is characterised in that：From
Bypass switches back into main road, and specific method is：First open the first main road stop valve (3), the second main road stop valve (5), the 3rd main road
Stop valve (6), switching instrument air tee ball valve (11) arrives main road, then turns off the first bypass stop valve (13), second auxiliary
Road stop valve (15), the 3rd bypass stop valve (16)；This process is without parking maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483221.2A CN107192736B (en) | 2017-06-22 | 2017-06-22 | Pretreatment system for CIC low explosion limit analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710483221.2A CN107192736B (en) | 2017-06-22 | 2017-06-22 | Pretreatment system for CIC low explosion limit analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107192736A true CN107192736A (en) | 2017-09-22 |
| CN107192736B CN107192736B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710483221.2A Active CN107192736B (en) | 2017-06-22 | 2017-06-22 | Pretreatment system for CIC low explosion limit analyzer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204549A (en) * | 1997-01-17 | 1999-01-13 | 阿切尔丹尼尔斯密德兰公司 | Electrodialysis apparatus |
| EP1213467A2 (en) * | 2000-12-07 | 2002-06-12 | Caterpillar Inc. | Venturi bypass exhaust gas recirculation system |
| CN101257481A (en) * | 2008-04-22 | 2008-09-03 | 中兴通讯股份有限公司 | System and method for cutting peak of preprocess discontinuousness allocating multiple carrier waves |
| CN101276732A (en) * | 2008-03-25 | 2008-10-01 | 大连八方经济技术有限公司 | System for sweeping microelectron air supply cabinet |
| CN101567701A (en) * | 2009-05-11 | 2009-10-28 | 深圳市统先科技股份有限公司 | High efficient multi-path digital down converter system |
| CN103900842A (en) * | 2014-03-22 | 2014-07-02 | 哈尔滨工程大学 | Self-suction-type Venturi water scrubber performance testing system |
| CN206920371U (en) * | 2017-06-22 | 2018-01-23 | 爱文思控制系统工程(上海)有限公司 | Pretreatment system for the low explosion limit analyzers of CIC |
-
2017
- 2017-06-22 CN CN201710483221.2A patent/CN107192736B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204549A (en) * | 1997-01-17 | 1999-01-13 | 阿切尔丹尼尔斯密德兰公司 | Electrodialysis apparatus |
| EP1213467A2 (en) * | 2000-12-07 | 2002-06-12 | Caterpillar Inc. | Venturi bypass exhaust gas recirculation system |
| CN101276732A (en) * | 2008-03-25 | 2008-10-01 | 大连八方经济技术有限公司 | System for sweeping microelectron air supply cabinet |
| CN101257481A (en) * | 2008-04-22 | 2008-09-03 | 中兴通讯股份有限公司 | System and method for cutting peak of preprocess discontinuousness allocating multiple carrier waves |
| CN101567701A (en) * | 2009-05-11 | 2009-10-28 | 深圳市统先科技股份有限公司 | High efficient multi-path digital down converter system |
| CN103900842A (en) * | 2014-03-22 | 2014-07-02 | 哈尔滨工程大学 | Self-suction-type Venturi water scrubber performance testing system |
| CN206920371U (en) * | 2017-06-22 | 2018-01-23 | 爱文思控制系统工程(上海)有限公司 | Pretreatment system for the low explosion limit analyzers of CIC |
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| Publication number | Publication date |
|---|---|
| CN107192736B (en) | 2023-09-08 |
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