CN206920371U - Pretreatment system for the low explosion limit analyzers of CIC - Google Patents
Pretreatment system for the low explosion limit analyzers of CIC Download PDFInfo
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- CN206920371U CN206920371U CN201720734689.XU CN201720734689U CN206920371U CN 206920371 U CN206920371 U CN 206920371U CN 201720734689 U CN201720734689 U CN 201720734689U CN 206920371 U CN206920371 U CN 206920371U
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- bypass
- main road
- pipeline
- stop valve
- cic
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Abstract
The utility model 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 mouth connects counter sample pipeline by instrument waste emission pipeline；The inlet and outlet 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, the bypass as standby design.The utility model is simple in construction, easy to operate, solves the blockage problem of CIC analyzers on incinerator, reduces maintenance rate and maintenance cost, while Redundancy Design allows whole incinerator system without parking maintenance.
Description
Technical field
A kind of pretreatment system for the low explosion limit analyzers of CIC is the utility model is related to, belongs to petrochemical industry and divides online
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, it is achieved in measuring.
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 can be measured that low explosion limit caused by all imflammable gas without selectivity, extensively peace
In import loaded on current country thermal accumulating incinerator in the ascendant.But in practical application, because CIC analyzers filter
The limitation of ability, because taking place frequently blocking in the application in pharmaceutical factory, the situation that incinerator must not be not parking can be caused, add maintenance
Rate and maintenance cost, influence the operating efficiency of whole system.
Utility model content
The technical problems to be solved in the utility model is how on the premise of lag time is not sacrificed, and solves pharmaceutical factory and burns
CIC analyzers blockage problem on stove, reduce maintenance rate and maintenance cost.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide one kind and is used for the low explosion limits of CIC
The pretreatment system of analyzer, it is characterised in that：Including the sampling probe on tested pipeline, sampling probe connection sample feeding pipe
Line one end, sample introduction pipeline other end connection main road bypass strainer sample inlet, main road bypass strainer main road outlet connection CIC
Analyzer import, the connection main import of main road Venturi transmission ejector of main road bypass strainer bypass outlet；CIC analyzer counter sample mouths lead to
Cross instrument waste emission pipeline connection 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 also connects
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
The port UNICOM that gas enters the port of pipeline connection and is connected with main road Venturi transmission ejector injection driving medium entrance.
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
The port UNICOM that gas enters the port of pipeline connection and is connected with bypass Venturi transmission ejector injection driving medium entrance.
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 analyzer counter sample mouths, 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, reach main road Venturi transmission ejector；Main road Venturi transmission ejector enters the instrument of pipeline entrance with instrument air
Air drives medium as injection, by adjusting the pressure of instrument air to adjust bypass flow so that system integrally lags
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, and has been detected
Gas after flows through instrument waste emission pipeline from CIC analyzer counter sample mouths, 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, reach bypass Venturi transmission ejector；Bypass Venturi transmission ejector enters the instrument of pipeline entrance with instrument air
Air drives medium as injection, by adjusting the pressure of instrument air to adjust bypass flow so that system integrally lags
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, carry 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.
System provided by the utility model overcomes the deficiencies in the prior art, simple in construction, easy to operate, solves pharmaceutical factory
The blockage problem of CIC analyzers on incinerator, reduces maintenance rate and maintenance cost, while Redundancy Design allows whole incinerator system
System improves operating efficiency without parking maintenance.
Brief description of the drawings
Fig. 1 is the pretreatment system structural representation for the low explosion limit analyzers of CIC that the present embodiment provides.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
Fig. 1 is the pretreatment system structural representation for the low explosion limit analyzers of CIC that the present embodiment provides, 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 provides 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, flow into main road bypass strainer 4 and 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.Main road bypass strainer 4 separates another
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 pass 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 is adjusted 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, it 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 flow to CIC analyzers 20, sample is in CIC analyzers 20 by the second bypass stop valve 15
Detected；Gas after the completion of detection flows through instrument waste emission pipeline 21 from the counter sample mouth of CIC analyzers 20, imports counter sample pipe
Line 22；One other air scour that bypass bypass strainer 14 separates takes away on the filtration core of bypass bypass strainer 14
Grain, by bypass visor 17, bypass check valve 18, reach 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 to the pressure of its injection medium instrument air by adjusting to adjust bypass flow 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 opens 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 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 can open by main road
Pipe filter 4, carry out the cleaning or replacing of filter core.Main road is switched back into from bypass after replacing 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, switching instrument air tee ball valve 11 arrive main road, then turned 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, allows whole incinerator system without parking maintenance.
Claims (6)
- A kind of 1. 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 mouth 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) is 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) connects back to Sample pipeline (22), counter sample pipeline (22) connection tested pipeline (23).
- A kind of 2. 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).
- A kind of 3. 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 the first bypass stop valve (13), by 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).
- A kind of 4. 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).
- A kind of 5. 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) Enter the port that pipeline is connected and the end being connected with main road Venturi transmission ejector (12) injection driving medium entrance with instrument air Mouth UNICOM.
- A kind of 6. 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) Enter the port that pipeline is connected and the end being connected with bypass Venturi transmission ejector (19) injection driving medium entrance with instrument air Mouth UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734689.XU CN206920371U (en) | 2017-06-22 | 2017-06-22 | Pretreatment system for the low explosion limit analyzers of CIC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734689.XU CN206920371U (en) | 2017-06-22 | 2017-06-22 | Pretreatment system for the low explosion limit analyzers of CIC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920371U true CN206920371U (en) | 2018-01-23 |
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ID=61322397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720734689.XU Withdrawn - After Issue CN206920371U (en) | 2017-06-22 | 2017-06-22 | Pretreatment system for the low explosion limit analyzers of CIC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206920371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192736A (en) * | 2017-06-22 | 2017-09-22 | 爱文思控制系统工程(上海)有限公司 | A kind of pretreatment system for the low explosion limit analyzers of CIC |
-
2017
- 2017-06-22 CN CN201720734689.XU patent/CN206920371U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192736A (en) * | 2017-06-22 | 2017-09-22 | 爱文思控制系统工程(上海)有限公司 | A kind of pretreatment system for the low explosion limit analyzers of CIC |
| CN107192736B (en) * | 2017-06-22 | 2023-09-08 | 爱文思控制系统工程(上海)有限公司 | Pretreatment system for CIC low explosion limit analyzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180123 Effective date of abandoning: 20230908 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180123 Effective date of abandoning: 20230908 |