CN109633090A - A kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system and method - Google Patents
A kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system and method Download PDFInfo
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- CN109633090A CN109633090A CN201811559806.9A CN201811559806A CN109633090A CN 109633090 A CN109633090 A CN 109633090A CN 201811559806 A CN201811559806 A CN 201811559806A CN 109633090 A CN109633090 A CN 109633090A
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- ball valve
- electrical ball
- control electrical
- sampling
- pulverized coal
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- 239000003245 coal Substances 0.000 title claims abstract description 57
- 238000005259 measurement Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 17
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 17
- 239000004571 lime Substances 0.000 title claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 114
- 238000005070 sampling Methods 0.000 claims abstract description 72
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 57
- 238000010926 purge Methods 0.000 claims abstract description 50
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000002817 coal dust Substances 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 7
- 238000000691 measurement method Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 2
- 238000005086 pumping Methods 0.000 description 2
- 241000589614 Pseudomonas stutzeri Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system and method, including by sampling probe (1), internal-thread spherical valve (2), blowdown controls internal-thread spherical valve (3), pipeline master control electrical ball valve (4), the sampling line A of sampling control electrical ball valve (5) and nitrogen purging control electrical ball valve (6) composition, by sampling probe (7), internal-thread spherical valve (8), blowdown controls internal-thread spherical valve (9), pipeline master control electrical ball valve (10), the sampling line B of sampling control electrical ball valve (11) and nitrogen purging control electrical ball valve (12) composition, CO analyzer (13), pulverized coal bin A (14), pulverized coal bin B (15) and control system.The CO concentration that pulverized coal bin A and pulverized coal bin B are measured using a CO analyzer is a kind of increasingly automated, inexpensive lime pulverized coal bin CO concentration measurement system, can reduce maintenance personnel's working strength and reduces frequency of maintenance and cost of investment.
Description
Technical field
The present invention relates to lime pulverized coal bin CO measurement of concetration technical field, in particular to a kind of full-automatic one drag two lime coal
Powder cabin CO concentration measurement system and method.
Background technique
Coal dust is one of the heat source of rotary kiln heating, is that raw coal is ground through coal pulverizer, is usually stored in pulverized coal bin,
It is sent using coal dust conveying fan to being heated in rotary kiln.In pulverized coal preparation and storage process, it can all generate in various degree
CO, and CO is toxic and explosive gas, therefore, is had important practical significance to the CO Concentration Testing in pulverized coal bin.
Currently used pulverized coal bin CO concentration measurement system is primarily present following problems, first is that analyzer utilizes pumping pumping
Gas analysis processing is sampled, sampling line and sampling probe are easy to be blocked by coal dust, and maintenance personnel is needed to use nitrogen regular purge, wave
Take manpower；Second is that analyzer generallys use imported product, when measuring the CO concentration of two or more pulverized coal bins, cost of investment compared with
It is high.
Summary of the invention
In order to solve the problems, such as described in background technique, the present invention provides a kind of full-automatic one drag two lime pulverized coal bin CO concentration
Measuring system and method are a kind of increasingly automated, inexpensive lime pulverized coal bin CO concentration measurement systems, can reduce maintenance
Person works' intensity and reduction frequency of maintenance and cost of investment.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system, including by sampling probe (1), internal-thread spherical valve
(2), blowdown control internal-thread spherical valve (3), pipeline master control electrical ball valve (4), sampling control electrical ball valve (5) and nitrogen purging
The sampling line A for controlling electrical ball valve (6) composition controls internal-thread spherical valve by sampling probe (7), internal-thread spherical valve (8), blowdown
(9), pipeline master control electrical ball valve (10), sampling control electrical ball valve (11) and nitrogen purging control electrical ball valve (12) composition
Sampling line B, CO analyzer (13), pulverized coal bin A (14), pulverized coal bin B (15) and control system.
The control system is DCS system.
A kind of measurement method of full-automatic one drag two lime pulverized coal bin CO concentration measurement system, using " one drag two " method,
The CO concentration that pulverized coal bin A and pulverized coal bin B are measured using a CO analyzer, is specifically included: it is electronic to open pipeline master control
Nitrogen purging control electrical ball valve (6) and sampling control electrical ball valve are closed in ball valve (4) and sampling control electrical ball valve (5)
(11) the CO measurement of concetration of pulverized coal bin A is realized；Open pipeline master control electrical ball valve (10) and sampling control electrical ball valve (11),
It closes nitrogen purging control electrical ball valve (12) and the CO measurement of concetration of pulverized coal bin B is realized in sampling control electrical ball valve (5)；DCS
System realizes that an analyzer measures the CO concentration of pulverized coal bin A and pulverized coal bin B by the working condition of control electrical ball valve.
Described " one drag two " method further include: open pipeline master control electrical ball valve (4) and sampling control electrical ball valve
(5), it closes nitrogen purging control electrical ball valve (6) and realizes CO sample gas automatic sampling；Open pipeline master control electrical ball valve (4) and
Nitrogen automatic blowing pipeline is realized in nitrogen purging control electrical ball valve (6), closing sampling control electrical ball valve (5)；DCS system is logical
The working condition for crossing control electrical ball valve realizes that sampling and nitrogen purge automatic switching function.
Described " one drag two " method further include: open pipeline master control electrical ball valve (4) and nitrogen purging control is electronic
Ball valve (6) closes sampling control electrical ball valve (5), and nitrogen blows back the coal dust in probe tube to realization purging in pulverized coal bin
Function；DCS system realizes nitrogen automatic blowing by remotely control, removes manual operation and maintenance from.
Compared with prior art, the beneficial effects of the present invention are:
1, it realizes that one drag two measures CO concentration by the switching of the electrical ball valve on two sampling lines of control, reduces investment
Cost；
2, nitrogen sparge tube road can be automatically controlled, maintenance personnel's working strength is reduced and reduces frequency of maintenance.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is control flow chart of the invention.
Specific embodiment
Specific embodiment provided by the invention is described in detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system, including by sampling probe (1),
Internal-thread spherical valve (2), blowdown control internal-thread spherical valve (3), pipeline master control electrical ball valve (4), sampling control electrical ball valve (5)
The sampling line A that control electrical ball valve (6) composition is purged with nitrogen is controlled by sampling probe (7), internal-thread spherical valve (8), blowdown
Internal-thread spherical valve (9), pipeline master control electrical ball valve (10), sampling control electrical ball valve (11) and nitrogen purging control electric ball
Sampling line B, the CO analyzer (13) of valve (12) composition, pulverized coal bin A (14), pulverized coal bin B (15) and control system.
The control system is DCS system.
A kind of measurement method of full-automatic one drag two lime pulverized coal bin CO concentration measurement system, using " one drag two " method,
The CO concentration that pulverized coal bin A and pulverized coal bin B are measured using a CO analyzer, is specifically included: it is electronic to open pipeline master control
Nitrogen purging control electrical ball valve (6) and sampling control electrical ball valve are closed in ball valve (4) and sampling control electrical ball valve (5)
(11) the CO measurement of concetration of pulverized coal bin A is realized；Open pipeline master control electrical ball valve (10) and sampling control electrical ball valve (11),
It closes nitrogen purging control electrical ball valve (12) and the CO measurement of concetration of pulverized coal bin B is realized in sampling control electrical ball valve (5)；DCS
System realizes that an analyzer measures the CO concentration of pulverized coal bin A and pulverized coal bin B by the working condition of control electrical ball valve.
Described " one drag two " method further include: open pipeline master control electrical ball valve (4) and sampling control electrical ball valve
(5), it closes nitrogen purging control electrical ball valve (6) and realizes CO sample gas automatic sampling；Open pipeline master control electrical ball valve (4) and
Nitrogen automatic blowing pipeline is realized in nitrogen purging control electrical ball valve (6), closing sampling control electrical ball valve (5)；DCS system is logical
The working condition for crossing control electrical ball valve realizes that sampling and nitrogen purge automatic switching function.
Described " one drag two " method further include: open pipeline master control electrical ball valve (4) and nitrogen purging control is electronic
Ball valve (6) closes sampling control electrical ball valve (5), and nitrogen blows back the coal dust in probe tube to realization purging in pulverized coal bin
Function；DCS system realizes nitrogen automatic blowing by remotely control, removes manual operation and maintenance from.
Specific embodiment:
As shown in Fig. 2, by taking pipeline A is to be sampled working condition as an example, full-automatic one drag two measuring system operation
Steps are as follows:
1) sampling line A and sampling line B switch mode are determined.
System of the invention provides a kind of switch mode: fixed work time-switching.Fixing work time-switching mode is
Nitrogen purging is automatically converted to after sampling work T time for pipeline A or pause mode, pipeline B start to be sampled
Work.
2) pipeline A is in sampling work state.
DCS system, which automatically controls, opens pipeline master control electrical ball valve (4) and sampling control electrical ball valve (5), closing nitrogen
Control electrical ball valve (6) is swept in air-blowing, and pipeline A is in sampling work state.
3) pipeline B is in nitrogen purging or pause mode
The pipeline B setting of sampling work state is not in there are three types of working condition: nitrogen continuously purge, nitrogen interval purges
And pause mode.
A. nitrogen continuously purges
Within the pipeline A sampling work time, pipeline B is constantly in nitrogen purging working condition, i.e. DCS system control is opened
Pipeline master control electrical ball valve (10) and nitrogen purging control electrical ball valve (12), close sampling control electrical ball valve (11), nitrogen
Gas sampling line B returns the coal dust blowback in pipeline B in pulverized coal bin, achievees the purpose that clean sampling line.
B. nitrogen interval purges
Within the pipeline A sampling work time, pipeline B is in nitrogen interval purging state, i.e., after the nitrogen purging △ T1 time,
The interval △ T2 time purges the △ T1 time again, and wherein △ T1 is a purge time, △ T2 is purging interval time.DCS system
Pipeline master control electrical ball valve (10) and nitrogen purging control electrical ball valve (12) are opened in system control, close sampling control electric ball
Valve (11) realizes that nitrogen purges function.After the △ T1 time, blind off a line master control electrical ball valve (10) and nitrogen purging control electricity
Dynamic ball valve (12) stop nitrogen purging.After the △ T2 time, nitrogen purging is started again at, is recycled with this and is taken until pipeline B is converted to
Until sample working condition.
C. pause mode
When pipeline B using the time it is shorter or deposition coal dust it is few when, can set pipeline B without nitrogen purge, i.e.,
DCS system blind off a line master control electrical ball valve (10), sampling control electrical ball valve (11) and nitrogen purging control electrical ball valve
(12)。
4) pipeline A and the conversion of B working condition
After the pipeline A sampling work time reaching T, pipeline A switchs to nitrogen purging or pause mode, pipeline B turn
It is changed to sampling work state.
DCS system, which automatically controls, opens pipeline B master control electrical ball valve (10) and sampling control electrical ball valve (11), closes
Nitrogen purging control electrical ball valve (12), i.e. pipeline B are in sampling work state.Pipeline A is blown according to the three kinds of nitrogen 3) provided
Sweep being used cooperatively for state control electrical ball valve.
Full-automatic one drag two pulverized coal bin CO measurement method of the invention alternately measures work according to above-mentioned operating procedure.
Above embodiments are implemented under the premise of the technical scheme of the present invention, give detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to the above embodiments.Method therefor is such as without spy in above-described embodiment
Not mentionleting alone bright is conventional method.
Claims (5)
1. a kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system, which is characterized in that including by sampling probe (1),
Internal-thread spherical valve (2), blowdown control internal-thread spherical valve (3), pipeline master control electrical ball valve (4), sampling control electrical ball valve (5)
The sampling line A that control electrical ball valve (6) composition is purged with nitrogen is controlled by sampling probe (7), internal-thread spherical valve (8), blowdown
Internal-thread spherical valve (9), pipeline master control electrical ball valve (10), sampling control electrical ball valve (11) and nitrogen purging control electric ball
Sampling line B, the CO analyzer (13) of valve (12) composition, pulverized coal bin A (14), pulverized coal bin B (15) and control system.
2. a kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system according to claim 1, which is characterized in that described
Control system is DCS system.
3. a kind of measurement method of full-automatic one drag two lime pulverized coal bin CO concentration measurement system described in claim 1, special
Sign is, using " one drag two " method, i.e., the CO concentration of pulverized coal bin A and pulverized coal bin B is measured using a CO analyzer, specifically
It include: to open pipeline master control electrical ball valve (4) and sampling control electrical ball valve (5), closing nitrogen purging control electrical ball valve
(6) and sampling controls the CO measurement of concetration that electrical ball valve (11) realize pulverized coal bin A；Open pipeline master control electrical ball valve (10) and
Sampling control electrical ball valve (11), closing nitrogen purging control electrical ball valve (12) and sampling control electrical ball valve (5) realization coal
The CO measurement of concetration of powder cabin B；DCS system realizes that an analyzer measures pulverized coal bin A by the working condition of control electrical ball valve
With the CO concentration of pulverized coal bin B.
4. the measurement method of full-automatic one drag two lime pulverized coal bin CO concentration measurement system according to claim 3, special
Sign is, described " one drag two " method further include: opens pipeline master control electrical ball valve (4) and sampling controls electrical ball valve
(5), it closes nitrogen purging control electrical ball valve (6) and realizes CO sample gas automatic sampling；Open pipeline master control electrical ball valve (4) and
Nitrogen automatic blowing pipeline is realized in nitrogen purging control electrical ball valve (6), closing sampling control electrical ball valve (5)；DCS system is logical
The working condition for crossing control electrical ball valve realizes that sampling and nitrogen purge automatic switching function.
5. the measurement method of full-automatic one drag two lime pulverized coal bin CO concentration measurement system according to claim 3, special
Sign is, described " one drag two " method further include: opens pipeline master control electrical ball valve (4) and nitrogen purging controls electric ball
Valve (6) closes sampling control electrical ball valve (5), and nitrogen blows back the coal dust in probe tube to the function for realizing purging in pulverized coal bin
Energy；DCS system realizes nitrogen automatic blowing by remotely control, removes manual operation and maintenance from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559806.9A CN109633090A (en) | 2018-12-20 | 2018-12-20 | A kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559806.9A CN109633090A (en) | 2018-12-20 | 2018-12-20 | A kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system and method |
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| Publication Number | Publication Date |
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| CN109633090A true CN109633090A (en) | 2019-04-16 |
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| CN201811559806.9A Pending CN109633090A (en) | 2018-12-20 | 2018-12-20 | A kind of full-automatic one drag two lime pulverized coal bin CO concentration measurement system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525618A (en) * | 2020-10-15 | 2021-03-19 | 广东韶钢工程技术有限公司 | Online sampling and purging method and device for mixed gas heat value instrument |
| CN113340669A (en) * | 2021-07-05 | 2021-09-03 | 国能神皖能源有限责任公司 | Full-automatic powder tube sampling device and method for LIBS coal quality on-line analysis |
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| CN112525618A (en) * | 2020-10-15 | 2021-03-19 | 广东韶钢工程技术有限公司 | Online sampling and purging method and device for mixed gas heat value instrument |
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Application publication date: 20190416 |