CN110007014A - A kind of real-time analytical equipment of gas pipeline gas component - Google Patents
A kind of real-time analytical equipment of gas pipeline gas component Download PDFInfo
- Publication number
- CN110007014A CN110007014A CN201910104997.8A CN201910104997A CN110007014A CN 110007014 A CN110007014 A CN 110007014A CN 201910104997 A CN201910104997 A CN 201910104997A CN 110007014 A CN110007014 A CN 110007014A
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- gas
- threeway
- valve
- pipeline
- helium
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- 239000007789 gas Substances 0.000 claims abstract description 175
- 239000001307 helium Substances 0.000 claims abstract description 89
- 229910052734 helium Inorganic materials 0.000 claims abstract description 89
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 89
- 239000000523 sample Substances 0.000 claims abstract description 62
- 238000004587 chromatography analysis Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 17
- 239000012159 carrier gas Substances 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims description 14
- 230000006837 decompression Effects 0.000 claims description 3
- 238000004817 gas chromatography Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 15
- 230000006872 improvement Effects 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- -1 that is Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of real-time analytical equipments of gas pipeline gas component, comprising: sampling probe connects with gas pipeline；Sample air pipe, entrance are connected with the first pressure reducing valve；First helium pipeline, entrance and the first helium steel cylinder connect；Second helium pipeline, entrance and the second helium steel cylinder connect；Third helium pipeline, entrance and the first helium tube outlet and the second helium tube outlet connect；Chromatography standard gas pipeline, entrance and chromatography standard gas steel cylinder connect；Gas pressure regulation pipeline, entrance and pneumatic operated valve connect, and outlet is connected to third helium tube road；Gas chromatographicanalyzer, carrier gas inlet and third helium tube outlet connect, and gas sample gas inlet and sample tracheae way outlet connect, and standard gas entrance and chromatography standard gas tube outlet connect, and exhaust outlet is connected to atmosphere；It stands control system, connects with solenoid valve, pressure regulator and gas chromatographicanalyzer.Beneficial effects of the present invention: accuracy, real-time and the high efficiency of the detection of gas pipeline component are improved.
Description
Technical field
The present invention relates to pipe-line system technical fields, analyze in real time in particular to a kind of gas pipeline gas component
Device.
Background technique
During conduit running, due to being related to needing the more demanding of component to group with third-party transaction measurement
Divide and carries out sampling analysis.Conventional pipelines needs are sampled from pipeline, off-line analysis after sampling, then by the component information hand after analysis
It is dynamic to be entered into system to realize.This method can not automatic on-line carry out component analysis, that there are personnel's loads is larger, process is complicated,
It takes a long time, the problems such as real-time is inadequate, the accuracy for eventually leading to gas pipeline component is not high.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of speed of analysis in real time faster, high degree of automation
The real-time analytical equipment of gas pipeline gas component, improve gas pipeline gas component detection accuracy.
The present invention provides a kind of real-time analytical equipments of gas pipeline gas component, comprising:
Sampling probe is connected with gas pipeline, and the sampling probe top is connected with the first pressure reducing valve；
Sample air pipe, entrance are connected with first pressure reducing valve, set gradually on the sample air pipe the first shut-off valve,
Diaphragm type filter, first filter, the second shut-off valve, pneumatic operated valve, the first check valve, the 4th shut-off valve, pressure regulator and second
Filter；
First helium pipeline, entrance are connected with the first helium steel cylinder, and the first helium tube road setting third depressurizes
Valve；
Second helium pipeline, entrance are connected with the second helium steel cylinder, the 4th decompression of the second helium tube road setting
Valve；
Third helium pipeline, entrance and the outlet of the first helium pipeline and the outlet phase of the second helium pipeline
Even, the third helium tube road sets gradually the 5th pressure reducing valve and the 6th shut-off valve；
Chromatography standard gas pipeline, entrance are connected with chromatography standard gas steel cylinder, set gradually second on the chromatography standard gas pipeline
Pressure reducing valve and the 7th shut-off valve；
Gas pressure regulation pipeline, entrance are connected with the pneumatic operated valve, and the outlet of the gas pressure regulation pipeline is connected to described
Third helium tube between 5th pressure reducing valve and the 6th shut-off valve sets gradually electromagnetism on the gas pressure regulation pipeline on the road
Valve, gas filtration pressure regulator and the 5th shut-off valve；
Gas chromatographicanalyzer, carrier gas inlet are connected with the outlet of the third helium pipeline, the gas-chromatography point
The sample gas inlet of analyzer is connected with the outlet of the sample air pipe, the standard gas entrance of the gas chromatographicanalyzer and the chromatography
The outlet of standard gas pipeline is connected, and the exhaust outlet of the gas chromatographicanalyzer is connected to atmosphere；
It stands control system, is connected with the solenoid valve, the pressure regulator and the gas chromatographicanalyzer.
It further include the first threeway and the second threeway on the sample air pipe as further improvement of the invention,
The first end of first threeway is connected with the first filter, the second end of first threeway and second shut-off valve
It is connected, the first end of second threeway is connected with first check valve, the second end of second threeway and the described 4th
Shut-off valve is connected, and the third end of first threeway is connected with the third end of second threeway, and the of first threeway
Pipeline between three ends and the third end of second threeway is equipped with third shut-off valve.
It is improved as of the invention further, further includes the third threeway on the sample air pipe, the described 3rd 3
Logical first end is connected with the 4th shut-off valve, and the second end of the third threeway is connected with the pressure regulator, the third
The third of threeway is terminated with first pressure gauge.
It further include blowdown piping, entrance is connected with second filter, described as further improvement of the invention
The outlet of blowdown piping is connected to atmosphere, sets gradually flowmeter and second one-way valve on the blowdown piping.
It further include the 4th threeway and the 5th threeway on the sample air pipe as further improvement of the invention,
The first end of 4th threeway is connected with the pressure regulator, the second end of the 4th threeway and the first of the 5th threeway
End is connected, and the third of the 4th threeway is terminated with second pressure gauge, the second end of the 5th threeway and second filtering
Device is connected, and the third end of the 5th threeway is connected with one end of Safety relief valve.
It further include the 6th threeway on blowdown piping as further improvement of the invention, the 6th threeway
First end is connected with the second one-way valve, and the second end of the 6th threeway is connected to atmosphere, the third end of the 6th threeway
It is connected with the other end of the Safety relief valve.
Improved as of the invention further, further include connection the first helium pipeline, the second helium pipeline and
The first end of 7th threeway of the third helium pipeline, the 7th threeway is connected with the outlet of the first helium pipeline,
The second end of 7th threeway is connected with the outlet of the second helium pipeline, the third end of the 7th threeway and described the
One end of five pressure reducing valves is connected.
It is improved as of the invention further, further includes the 8th threeway positioned at third helium tube road, described the
The first end of eight threeways is connected with the other end of the 5th pressure reducing valve, the second end of the 8th threeway and the 6th cut-off
Valve is connected, and the third end of the 8th threeway is connected with the 5th shut-off valve.
As further improvement of the invention, the both ends of second pressure reducing valve are respectively equipped with third pressure gauge and the 4th pressure
Power table, the third pressure reducing valve are equipped with the 5th pressure gauge, and the 4th pressure reducing valve is equipped with the 6th pressure gauge, and the described 5th subtracts
Pressure valve is equipped with the 7th pressure gauge, and the gas filtration pressure regulator is equipped with the 8th pressure gauge.
Improved as of the invention further, further include explosion-proof wiring box, the pressure regulator by the first cable with it is described
Explosion-proof wiring box is connected, and the solenoid valve is connected by the second cable with the explosion-proof wiring box, the gas chromatographicanalyzer
It is connected by third cable with the explosion-proof wiring box, the explosion-proof wiring box is connected by the 4th cable with station control system.
The invention has the benefit that
The automatic on-line analysis that gas pipeline gas component can be achieved, improves the accurate of gas pipeline gas component detection
Property, timeliness, so that gas pipeline gas component on-line analysis is more tended to functionization, reduce personnel's load.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the real-time analytical equipment of gas pipeline gas component described in the embodiment of the present invention.
In figure,
1, pipe nipple is welded；2, sampling probe；3, the first pressure reducing valve；4, the first shut-off valve；5, diaphragm type filter；6, stainless
Steel pipe；7, blowdown valve；8, first filter；9, the first threeway；10, the second shut-off valve；11, pneumatic operated valve；12, the first check valve；
13, the second threeway；14, third shut-off valve；15, the 4th shut-off valve；16, third threeway；17, first pressure gauge；18, pressure regulator；
19, the 4th threeway；20, second pressure gauge；21, the 5th threeway；22, the second filter；23, Safety relief valve；24, flowmeter；
25, second one-way valve；26, the 6th threeway；27, gas chromatographicanalyzer；28, chromatography standard gas steel cylinder；29, the second pressure reducing valve；30,
Third pressure gauge；31, the 4th pressure gauge；32, the first helium steel cylinder；33, third pressure reducing valve；34, the 5th pressure gauge；35, second
Helium steel cylinder；36, the 4th pressure reducing valve；37, the 6th pressure gauge；38, the 7th threeway；39, the 5th pressure reducing valve；40, the 7th pressure gauge；
41, the 8th threeway；42, the 5th shut-off valve；43, gas filtration pressure regulator；44, solenoid valve；45, the 6th shut-off valve；46, the 7th section
Only valve；47, the first cable；48, the second cable；49, third cable；50, the 4th cable；51, explosion-proof wiring box.
Specific embodiment
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
A kind of real-time analytical equipment of gas pipeline gas component of the embodiment of the present invention, gas chromatographicanalyzer 27 is applied
To gas pipeline, the automatic on-line analysis of gas pipeline gas component is realized.As shown in Figure 1, gas pipeline gas of the invention
The real-time analytical equipment of component includes: sampling probe 2, sample air pipe, the first helium pipeline, the second helium pipeline, third helium tube
Road, chromatography standard gas pipeline, gas pressure regulation pipeline, gas chromatographicanalyzer 27 and station control system.
Sampling probe 2 is connected by weld nipple 1 with gas pipeline, and 2 top of sampling probe is connected with the first pressure reducing valve 3.
The entrance of sample air pipe is connected with the first pressure reducing valve 3, the outlet of sample air pipe and the sample of gas chromatographicanalyzer 27
Gas entrance is connected, in the sample gas injection gas chromatographicanalyzer 27 that sampling probe 2 is taken out.First is set gradually on sample air pipe
Shut-off valve 4, diaphragm type filter 5, first filter 8, the second shut-off valve 10, pneumatic operated valve 11, the cut-off of the first check valve the 12, the 4th
Valve 15, pressure regulator 18 and the second filter 22.The setting of first pressure reducing valve 3, it is ensured that the sample atmospheric pressure taken out out of sampling probe 2
In tolerance band, guarantee the safe operation of entire analytic process.The setting of first shut-off valve 4 is for taking out sampling probe
Sample gas unidirectionally flows into sample air pipe and is filtered.Diaphragm type filter 5 due to increasing by one layer of diaphragm in the filter, so that filtering
Effect is more preferable, while the service life is longer.Diaphragm type filter 5 and first filter 8 this double filtration are set, by the sample of taking-up
Gas filters impurities removal twice, it is ensured that more pure into the sample gas during pipeline pressure regulation.Second shut-off valve 10, the first check valve 12
Setting with the 4th shut-off valve 15 is for will carry out pressure regulation in the filtered unidirectional feed line of sample gas.Preferably, pressure regulator 18
Band having heaters, on the one hand ensure into gas chromatographicanalyzer 27 sample gas pressure within the allowable range, on the other hand
Ensure to be sent into gas chromatographicanalyzer 27 after the sample gas in pipeline is sufficiently heated to proper temperature and be analyzed.Second filtering
The setting of device 22, it is ensured that it is more pure into the sample gas in gas chromatographicanalyzer 27, ensure the accuracy of analysis.
The entrance of first helium pipeline is connected with the first helium steel cylinder 32, the first helium tube road setting third pressure reducing valve
33.The entrance of second helium pipeline is connected with the second helium steel cylinder 35, the 4th pressure reducing valve 36 of the second helium tube road setting.Third
The entrance of helium pipeline is connected with the outlet of the first helium pipeline and the outlet of the second helium pipeline, the outlet of third helium pipeline
It is connected with the carrier gas inlet of gas chromatographicanalyzer 27, third helium tube road sets gradually the 5th pressure reducing valve 39 and the 6th cut-off
Valve 45.The connected applications of first helium pipeline and the second helium pipeline, so that the helium into third helium pipeline meets gas phase
The carrier gas flux requirement of chromatograph 27.The setting of third pressure reducing valve 33, it is ensured that from the helium come out with the first helium steel cylinder 32
The pressure of gas is within the allowable range.The setting of 4th pressure reducing valve 36, it is ensured that the pressure of the helium come out from the second helium steel cylinder 35
Within the allowable range.The setting of 5th pressure reducing valve 39, it is ensured that the pressure into the carrier gas in gas chromatographicanalyzer 27 is allowing
In range.The setting of 6th shut-off valve 45, for by the carrier gas one-way flow in the first helium steel cylinder 32 and the second helium steel cylinder 35
Enter in gas chromatographicanalyzer 27.
The entrance of chromatography standard gas pipeline is connected with chromatography standard gas steel cylinder 28, the outlet of chromatography standard gas pipeline and gas-chromatography point
The standard gas entrance of analyzer 27 is connected, and the second pressure reducing valve 29 and the 7th shut-off valve 46 are set gradually on chromatography standard gas pipeline.Second subtracts
The setting of pressure valve 29, it is ensured that into the chromatography standard gas in gas chromatographicanalyzer 27 pressure within the allowable range.7th cut-off
The setting of valve 46 is marked for unidirectionally flowing into the chromatography standard gas in chromatography standard gas steel cylinder 28 in gas chromatographicanalyzer 27
It is fixed.
The entrance of gas pressure regulation pipeline is connected with pneumatic operated valve 11, and the outlet of gas pressure regulation pipeline is connected to the 5th pressure reducing valve 39
And the 6th third helium tube road between shut-off valve 45, solenoid valve 44, gas filtration tune are set gradually on gas pressure regulation pipeline
Depressor 43 and the 5th shut-off valve 42.The setting of solenoid valve 44, it is ensured that by the cylinder of gas input pneumatic operated valve 11, enable pneumatic operated valve 11 just
Often work.The setting of gas filtration pressure regulator 43, it is ensured that be adjusted in appropriate range, guarantee into the pressure in pneumatic operated valve 11
The normal work of pneumatic operated valve 11.The setting of 5th shut-off valve 42, for flowing into gas unidirectional in the cylinder of pneumatic operated valve 11.
The exhaust outlet of gas chromatographicanalyzer 27 is connected to atmosphere.
Solenoid valve 44, pressure regulator 18 and gas chromatographicanalyzer 27 are connected with station control system.
Further, diaphragm type filter 5 is connected by stainless steel tube 6 with blowdown valve 7, after the completion of to be analyzed, the row of opening
Part residual air in sample air pipe is drained into safety zone by dirty valve 7.
Further, the first threeway 9 and the second threeway 13, the first end and first of the first threeway 9 are set on sample air pipe
Filter 8 is connected, and the second end of the first threeway 9 is connected with the second shut-off valve 10, and the first end of the second threeway 13 is unidirectional with first
Valve 12 is connected, and the second end of the second threeway 13 is connected with the 4th shut-off valve 15, the third end of the first threeway 9 and the second threeway 13
Third end is connected, and the pipeline between the third end of the first threeway 9 and the third end of the second threeway 13 is equipped with third shut-off valve
14.First check valve 12 prevents adverse current, is easy to appear failure, and setting third shut-off valve 14 is primarily to prevent unidirectional
12 failure of valve, easy access.
Further, the third threeway 16 on sample air pipe, the first end of third threeway 16 are connected with the 4th shut-off valve 15,
The second end of third threeway 16 is connected with pressure regulator 18, and the third of third threeway 16 is terminated with first pressure gauge 17.
It further, further include blowdown piping, the entrance of blowdown piping is connected with the second filter 22, and blowdown piping goes out
Mouth is connected to atmosphere, and flowmeter 24 and second one-way valve 25 are set gradually on blowdown piping.
It further, further include the 4th threeway 19 and the 5th threeway 21 on sample air pipe, the first end of the 4th threeway 19
It is connected with pressure regulator 18, the second end of the 4th threeway 19 is connected with the first end of the 5th threeway 21, the third end of the 4th threeway 19
It is connected to second pressure gauge 20, the second end of the 5th threeway 21 is connected with the second filter 22, the third end of the 5th threeway 21 and peace
One end of full diffusion valve 23 is connected.During 18 pressure regulation of pressure regulator, 20 real-time monitoring of first pressure gauge 17 and second pressure gauge
Pressure value on sample air pipe.
It further, further include the 6th threeway 26 on blowdown piping, the first end and second one-way valve of the 6th threeway 26
25 are connected, and the second end of the 6th threeway 26 is connected to atmosphere, the third end of the 6th threeway 26 and the other end phase of Safety relief valve 23
Even.After the completion of to be analyzed, Safety relief valve 23 and second one-way valve 25 are opened by the part residual air in sample air pipe and drains into atmosphere
In.
It further, further include the 7th threeway for connecting the first helium pipeline, the second helium pipeline and third helium pipeline
38, the first end of the 7th threeway 38 is connected with the outlet of the first helium pipeline, the second end and the second helium tube of the 7th threeway 38
The outlet on road is connected, and the third end of the 7th threeway 38 is connected with one end of the 5th pressure reducing valve 39.
It further, further include the 8th threeway 41 positioned at third helium tube road, the first end of the 8th threeway 41 and the
The other end of five pressure reducing valves 39 is connected, and the second end of the 8th threeway 41 is connected with the 6th shut-off valve 45, the third of the 8th threeway 41
End is connected with the 5th shut-off valve 42.
Further, the both ends of the second pressure reducing valve 29 are respectively equipped with third pressure gauge 30 and the 4th pressure gauge 31, for supervising
The pressure value on standard gas pipeline is composed in colour examining.Third pressure reducing valve 33 is equipped with the 5th pressure gauge 34, for monitoring the first helium pipeline
On pressure value.4th pressure reducing valve 36 is equipped with the 6th pressure gauge 37, for monitoring the pressure value of the second helium tube road.5th
Pressure reducing valve 39 is equipped with the 7th pressure gauge 40, for monitoring the pressure value of third helium tube road.On gas filtration pressure regulator 43
Equipped with the 8th pressure gauge, for monitoring the pressure value on gas pressure regulation pipeline.
It further, further include explosion-proof wiring box 51, pressure regulator 18 is connected by the first cable 47 with explosion-proof wiring box 51,
Solenoid valve 44 is connected by the second cable 48 with explosion-proof wiring box 51, gas chromatographicanalyzer 27 pass through third cable 49 with it is explosion-proof
Junction box 51 is connected, and explosion-proof wiring box 51 is connected by the 4th cable 50 with station control system.By the pressure signal of pressure regulator 18, electricity
The valve signal of magnet valve 44 and the real-time analysis result of gas chromatographicanalyzer 27 are uploaded to station control system.Control system of standing is PLC
Or DCS etc..
Further, sample air pipe, the first helium pipeline, the second helium pipeline, third helium pipeline, chromatography standard gas pipeline
Stainless steel tube 6 is all made of with gas surge pipe road.Further, it is contemplated that outdoor environment, stainless steel tube 6 is according to environment temperature etc.
Electric heating companion is set.
The specific testing principle of the real-time analytical equipment of gas pipeline gas component of the invention are as follows: in entire pipeline, carrier gas
Flowing in real time realizes the calibration to time limit chromatograph first by repeatedly injecting standard gas.Then, by sampling probe from filling
Representative sample gas is obtained in the gas pipeline of full high-pressure natural gas.Using devices such as filtering, pressure regulation in pipeline, obtain
The sample gas injection gas chromatographicanalyzer for meeting condition, then analyzes sample gas by gas chromatographicanalyzer, exports component
Information is arrived at a station control system.
Specifically includes the following steps:
Step 1, start gas chromatographicanalyzer 27.
Step 2, all valves of the real-time analytical equipment of gas pipeline gas component are closed.
Step 3, the analysis parameter of gas chromatographicanalyzer 27, including temperature, analysis duration and analysis time interval are set.
Step 4, the third pressure reducing valve 33 of the first helium tube road, 36 and of the 4th pressure reducing valve of the second helium tube road are set
The pressure value of 5th pressure reducing valve 39 of third helium tube road.
Step 5, carrier gas, that is, helium is injected gas chromatographicanalyzer by the 6th shut-off valve 45 for opening third helium tube road
In 27.
Step 6, the 5th shut-off valve 42 on gas pressure regulation pipeline is opened, and sets the gas mistake on gas pressure regulation pipeline
Filter the pressure value of pressure regulator 43.
Step 7, the pressure value of the second pressure reducing valve 29 on chromatography standard gas pipeline is set, and open on chromatography standard gas pipeline the
Seven shut-off valves 46 inject chromatography standard gas in gas chromatographicanalyzer 27, carry out the calibration calibration of gas chromatographicanalyzer 27.
Step 8, after the completion of the calibration of gas chromatographicanalyzer 27 calibration, the first pressure reducing valve 3 on sampling probe 2 is set
Pressure value and sample air pipe on pressure regulator 18 pressure value.
Step 9, the first shut-off valve 4, the second shut-off valve 10, the first check valve 12 and the 4th on sample air pipe are successively opened
Shut-off valve 15.
Step 10, the pneumatic operated valve 11 on sample air pipe is opened, the sample gas that sampling probe 2 is taken out from gas pipeline injects gas
In analysis of hplc instrument 27.
Step 11, gas chromatographicanalyzer 27 analyzes sample gas, and output analysis result is simultaneously uploaded to station control system, closes pneumatic
Valve 11.
Step 12, step 10-11 is repeated until completing all analyses, close the first shut-off valve 4, the second shut-off valve 10, the
One check valve 12, the 4th shut-off valve 15 and gas chromatographicanalyzer 27.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of real-time analytical equipment of gas pipeline gas component characterized by comprising
Sampling probe (2), is connected with gas pipeline, and sampling probe (2) top is connected with the first pressure reducing valve (3)；
Sample air pipe, entrance are connected with first pressure reducing valve (3), set gradually the first shut-off valve on the sample air pipe
(4), diaphragm type filter (5), first filter (8), the second shut-off valve (10), pneumatic operated valve (11), the first check valve (12),
Four shut-off valves (15), pressure regulator (18) and the second filter (22)；
First helium pipeline, entrance are connected with the first helium steel cylinder (32), and the first helium tube road setting third depressurizes
Valve (33)；
Second helium pipeline, entrance are connected with the second helium steel cylinder (35), the 4th decompression of the second helium tube road setting
Valve (36)；
Third helium pipeline, entrance are connected with the outlet of the first helium pipeline and the outlet of the second helium pipeline,
The third helium tube road sets gradually the 5th pressure reducing valve (39) and the 6th shut-off valve (45)；
Chromatography standard gas pipeline, entrance are connected with chromatography standard gas steel cylinder (28), set gradually second on the chromatography standard gas pipeline
Pressure reducing valve (29) and the 7th shut-off valve (46)；
Gas pressure regulation pipeline, entrance are connected with the pneumatic operated valve (11), and the outlet of the gas pressure regulation pipeline is connected to described
Third helium tube road between 5th pressure reducing valve (39) and the 6th shut-off valve (45), on the gas pressure regulation pipeline successively
Solenoid valve (44), gas filtration pressure regulator (43) and the 5th shut-off valve (42) are set；
Gas chromatographicanalyzer (27), carrier gas inlet are connected with the outlet of the third helium pipeline, the gas-chromatography point
The sample gas inlet of analyzer (27) is connected with the outlet of the sample air pipe, the standard gas entrance of the gas chromatographicanalyzer (27) with
The outlet of the chromatography standard gas pipeline is connected, and the exhaust outlet of the gas chromatographicanalyzer (27) is connected to atmosphere；
It stands control system, is connected with the solenoid valve (44), the pressure regulator (18) and the gas chromatographicanalyzer (27).
2. the real-time analytical equipment of gas pipeline gas component according to claim 1, which is characterized in that further include being located at institute
State the first threeway (9) and the second threeway (13) on sample air pipe, the first end of first threeway (9) and first filtering
Device (8) is connected, and the second end of first threeway (9) is connected with second shut-off valve (10), second threeway (13)
First end is connected with first check valve (12), the second end of second threeway (13) and the 4th shut-off valve (15) phase
Even, the third end of first threeway (9) is connected with the third end of second threeway (13), and first threeway (9)
Pipeline between third end and the third end of second threeway (13) is equipped with third shut-off valve (14).
3. the real-time analytical equipment of gas pipeline gas component according to claim 1, which is characterized in that further include being located at institute
The third threeway (16) on sample air pipe is stated, the first end of the third threeway (16) is connected with the 4th shut-off valve (15),
The second end of the third threeway (16) is connected with the pressure regulator (18), and the third of the third threeway (16) is terminated with first
Pressure gauge (17).
4. the real-time analytical equipment of gas pipeline gas component according to claim 1, which is characterized in that further include blow-down pipe
Road, entrance are connected with second filter (22), and the outlet of the blowdown piping is connected to atmosphere, on the blowdown piping according to
Secondary setting flowmeter (24) and second one-way valve (25).
5. the real-time analytical equipment of gas pipeline gas component according to claim 4, which is characterized in that further include being located at institute
State the 4th threeway (19) and the 5th threeway (21) on sample air pipe, the first end of the 4th threeway (19) and the pressure regulator
(18) it is connected, the second end of the 4th threeway (19) is connected with the first end of the 5th threeway (21), the 4th threeway
(19) third is terminated with second pressure gauge (20), the second end of the 5th threeway (21) and the second filter (22) phase
Even, the third end of the 5th threeway (21) is connected with one end of Safety relief valve (23).
6. the real-time analytical equipment of gas pipeline gas component according to claim 5, which is characterized in that further include being located to put
6th threeway (26) of blank pipe road, the first end of the 6th threeway (26) is connected with the second one-way valve (25), described
Second end of the 6th threeway (26) is connected to atmosphere, and the third end of the 6th threeway (26) is another with the Safety relief valve (23)
One end is connected.
7. the real-time analytical equipment of gas pipeline gas component according to claim 1, which is characterized in that further include connection institute
State the 7th threeway (38) of the first helium pipeline, the second helium pipeline and the third helium pipeline, the 7th threeway
(38) first end is connected with the outlet of the first helium pipeline, the second end of the 7th threeway (38) and second helium
The outlet of air pipe is connected, and the third end of the 7th threeway (38) is connected with one end of the 5th pressure reducing valve (39).
8. the real-time analytical equipment of gas pipeline gas component according to claim 7, which is characterized in that further include being located at institute
State the 8th threeway (41) of third helium tube road, first end and the 5th pressure reducing valve (39) of the 8th threeway (41)
The other end is connected, and the second end of the 8th threeway (41) is connected with the 6th shut-off valve (45), the 8th threeway (41)
Third end be connected with the 5th shut-off valve (42).
9. the real-time analytical equipment of gas pipeline gas component according to claim 1, which is characterized in that second decompression
The both ends of valve (29) are respectively equipped with third pressure gauge (30) and the 4th pressure gauge (31), and the third pressure reducing valve (33) is equipped with the
Five pressure gauges (34), the 4th pressure reducing valve (36) are equipped with the 6th pressure gauge (37), and the 5th pressure reducing valve (39) is equipped with
7th pressure gauge (40), the gas filtration pressure regulator (43) are equipped with the 8th pressure gauge.
10. the real-time analytical equipment of gas pipeline gas component according to claim 1, which is characterized in that further include explosion-proof
Junction box (51), the pressure regulator (18) are connected by the first cable (47) with the explosion-proof wiring box (51), the solenoid valve
(44) it is connected by the second cable (48) with the explosion-proof wiring box (51), the gas chromatographicanalyzer (27) passes through third electricity
Cable (49) is connected with the explosion-proof wiring box (51), and the explosion-proof wiring box (51) passes through the 4th cable (50) and station control system phase
Even.
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Cited By (1)
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