CN112304718A - Sulfur-containing natural gas sampling system - Google Patents
Sulfur-containing natural gas sampling system Download PDFInfo
- Publication number
- CN112304718A CN112304718A CN201910696031.8A CN201910696031A CN112304718A CN 112304718 A CN112304718 A CN 112304718A CN 201910696031 A CN201910696031 A CN 201910696031A CN 112304718 A CN112304718 A CN 112304718A
- Authority
- CN
- China
- Prior art keywords
- neutralization
- sampling
- pipeline
- natural gas
- sulfur
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 238000005070 sampling Methods 0.000 title claims abstract description 146
- 239000003345 natural gas Substances 0.000 title claims abstract description 80
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 57
- 239000011593 sulfur Substances 0.000 title claims abstract description 57
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 138
- 239000007789 gas Substances 0.000 claims abstract description 54
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 45
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 16
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000006477 desulfuration reaction Methods 0.000 abstract description 7
- 230000023556 desulfurization Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- 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
- G01N1/24—Suction devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Physics & Mathematics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a sulfur-containing natural gas sampling system which comprises a neutralization tank, wherein a neutralization solution is contained in the neutralization tank, a neutralization gas inlet pipeline extends into the neutralization solution, and the end part of the neutralization gas inlet pipeline extending into the neutralization solution is connected with a gas distributor capable of dispersing sulfur-containing natural gas into a plurality of small bubbles. Aiming at the particularity of sampling the sulfur-containing natural gas, the end part of the neutralizing solution, extending into the neutralizing tank, of the neutralizing gas inlet pipeline is connected with the gas distributor which can disperse the sulfur-containing natural gas into a plurality of small bubbles, so that the sulfur-containing natural gas discharged in the sampling process is in full contact reaction with the neutralizing solution in the neutralizing tank, the desulfurization effect is good, the sulfur content of the natural gas discharged to the atmosphere is low or even zero, the method is environment-friendly, and the safe and smooth sampling operation is ensured.
Description
Technical Field
The invention relates to a sampling system for gas detection, in particular to a sulfur-containing natural gas sampling system.
Background
The commercialization of natural gas requires desulfurization treatment which is based on the measurement of the substances and contents, particularly the sulfur content, contained in the natural gas, and the measurement accuracy of the substances contained in the natural gas depends on the sampling technique, i.e., the reliable sampling of the sulfur-containing natural gas directly determines the measurement accuracy of the sulfur content of the natural gas.
The sampling of sour natural gas is conducted in a sour environment, with the risk of hydrogen sulfide leakage and poisoning, which is mainly seen during the replacement of the sampling vessel-cylinder, and during the venting of the natural gas in the sampling line.
At present, the steel cylinder is directly subjected to field sampling through a sampling pipeline for sampling the sulfur-containing natural gas, most of the sulfur-containing natural gas discharged by the sampling pipeline enters the steel cylinder for storage, and a small part of the sulfur-containing natural gas needs to be emptied based on the saturation state of the steel cylinder. In the storage process of the steel cylinder, the originally stored sulfur-containing natural gas in the steel cylinder needs to be replaced, and the replaced sulfur-containing natural gas needs to be emptied. In the whole sampling process, the emptied natural gas with the content can be discharged after being subjected to hydrogen sulfide removal treatment by the neutralization solution, namely, the discharged gas does not contain hydrogen sulfide.
However, the existing sampling system for sulfur-containing natural gas directly discharges sulfur-containing natural gas discharged in the sampling process (including sulfur-containing natural gas discharged from a steel cylinder and sulfur-containing natural gas discharged from a sampling pipeline without being stored in the steel cylinder) into a neutralization tank through a neutralization pipeline, so that the sulfur-containing natural gas is directly discharged into the atmosphere after undergoing a neutralization reaction with a neutralization solution in the neutralization tank, the sulfur-containing natural gas discharged into the neutralization tank through the neutralization pipeline is excessively concentrated by the neutralization and discharge mode, the sulfur-containing natural gas and the neutralization solution in the neutralization tank cannot perform a sufficient contact reaction, the desulfurization effect is poor, the discharged natural gas still contains high hydrogen sulfide, the pollution to the surrounding environment is further caused, and the sampling operation is not safe and smooth.
Disclosure of Invention
The technical purpose of the invention is as follows: aiming at the particularity of the sulfur-containing natural gas sampling and the defects of the prior art, the sulfur-containing natural gas sampling system which can enable the sulfur-containing natural gas discharged in the sampling process to be in full contact reaction in the neutralization tank and has good desulfurization effect is provided.
The technical purpose of the invention is realized by the following technical scheme: the sulfur-containing natural gas sampling system comprises a neutralization tank, wherein a neutralization solution is contained in the neutralization tank, a neutralization gas inlet pipeline extends into the neutralization solution, and the end part of the neutralization gas inlet pipeline extending into the neutralization solution is connected with a gas distributor capable of dispersing sulfur-containing natural gas into a plurality of small bubbles.
As one of preferable solutions, the neutralization tank has an evacuation chamber and a plurality of neutralization chambers; the emptying chamber is provided with an emptying channel communicated with the outside, and a hydrogen sulfide detector is arranged in the emptying chamber; the neutralizing chambers of the neutralizing tank are respectively filled with neutralizing solution, the neutralizing chamber positioned at the first upstream is used for extending into a neutralizing gas inlet pipeline, the neutralizing chamber positioned at the last downstream is communicated with the emptying chamber through an emptying overflow pipeline, the gas inlet end of the emptying overflow pipeline is positioned above the neutralizing solution corresponding to the neutralizing chamber, the gas outlet end of the emptying overflow pipeline is positioned below a hydrogen sulfide detector in the emptying chamber, the neutralizing chambers are sequentially communicated through the corresponding neutralizing overflow pipelines from upstream to downstream, the gas inlet end of each neutralizing overflow pipeline is positioned above the neutralizing solution corresponding to the upstream neutralizing chamber, the gas outlet end of each neutralizing overflow pipeline extends into the neutralizing solution of the downstream corresponding neutralizing chamber, and the end part of each neutralizing overflow pipeline extending into the neutralizing solution is connected with a gas distributor capable of dispersing sulfur-containing natural gas into a plurality of small bubbles.
Preferably, the gas distributor is a stainless steel structure formed sieve tube structure, and the minimum mesh number on the gas distributor is 800 meshes.
Preferably, the sampling system further comprises a sampling container, the sampling container is provided with a sampling air inlet line and a sampling exhaust line, the sampling air inlet line is connected with the high-pressure line, and the sampling exhaust line is connected with the neutralization air inlet line. Furthermore, a sampling air inlet valve is connected to a sampling air inlet pipe line of the sampling container, and a sampling exhaust valve is connected to a sampling exhaust pipe line. The sampling air inlet pipeline is connected with an air pump, and an air replacement valve is connected between the air pump and the sampling air inlet pipeline; and a high-pressure air inlet valve is connected between the sampling air inlet pipeline and the high-pressure pipeline. The high-pressure pipeline is connected with a sampling pipeline through a joint, and the sampling pipeline is connected to a main pipeline of the sulfur-containing natural gas. Still further, be connected with the sample stop valve on the sampling line. And a low-pressure pipeline is connected to the joint and is connected with a neutralization air inlet pipeline. Furthermore, a vent stop valve is connected to the low-pressure pipeline close to the joint, and a low-pressure exhaust valve is connected to the low-pressure pipeline close to the neutral inlet pipeline.
The beneficial technical effects of the invention are as follows:
1. aiming at the particularity of sampling the sulfur-containing natural gas, the end part of the neutralizing solution, extending into the neutralizing tank, of the neutralizing gas inlet pipeline is connected with a gas distributor which can disperse the sulfur-containing natural gas into a plurality of small bubbles, so that the sulfur-containing natural gas discharged in the sampling process is in full contact reaction with the neutralizing solution in the neutralizing tank, the desulfurization effect is good, the sulfur content of the natural gas discharged to the atmosphere is low or even zero, the method is environment-friendly, and the safe and smooth development of the sampling operation is ensured;
2. the arrangement structures of the plurality of neutralizing chambers and the corresponding neutralizing pipelines of the neutralizing tank can further reliably ensure that the sulfur-containing natural gas discharged in the sampling process is in full contact reaction with the neutralizing solution in the neutralizing tank, thereby greatly improving the desulfurization effect; in addition, the hydrogen sulfide detector in the emptying chamber of the neutralization tank is provided with a structure and a matching structure with the emptying pipeline, so that the sulfur content of the natural gas emptied after neutralization can be effectively detected, the control of the emptied natural gas is facilitated, and the safe and smooth development of sampling operation is facilitated;
3. the gas distributor is formed by adopting a stainless steel structure, can effectively resist corrosion and has long service life; moreover, the requirement of the mesh number of the gas distributor can effectively ensure that the discharged sulfur-containing natural gas is dispersed into a plurality of dense small bubbles, thereby reliably ensuring that the sulfur-containing natural gas is in full contact reaction with the neutralizing solution in the neutralizing tank so as to ensure the desulfurization effect;
4. the air pump connected to the air inlet pipeline of the sampling container can effectively replace the sulfur-containing natural gas in the sampling air inlet pipeline at the front side, the sampling container and the sampling exhaust pipeline at the rear side by compressed air, so that the sampled sulfur-containing natural gas after the sampling operation is finished can be completely neutralized, the environment is protected, the sulfur-containing natural gas generated by the sampling operation at the front and the rear times can be effectively prevented from being mixed, and the precision and the reliability of the sampling operation can be guaranteed;
5. according to the invention, the low-pressure pipeline is connected between the joint and the neutralization gas inlet pipeline, so that the sulfur-containing natural gas which is discharged from the sampling stop valve and enters the sampling container without passing through the high-pressure pipeline can be introduced into the neutralization box through the low-pressure pipeline for neutralization treatment, so that the natural gas discharged into the atmosphere has low or even no sulfur content, is environment-friendly, and is beneficial to ensuring the safe and smooth development of sampling operation;
in summary, the invention has the five main technical advantages, and also has the characteristics of simple structure, portability, convenient operation, flexible use and the like, and the practicability is strong.
Drawings
FIG. 1 is a schematic structural view of the present invention showing that the neutralization tank has two neutralization chambers and a vent chamber, the two neutralization chambers contain neutralization solutions, the neutralization lines extend into the neutralization solutions and are connected to a gas distributor, and the vent line extends into the bottom of the vent chamber and is located below a hydrogen sulfide detector; the two ends of the sampling container are connected with a sampling air inlet pipeline and a sampling exhaust pipeline, the sampling air inlet pipeline is respectively connected with a high-pressure pipeline and an air pump, and the sampling exhaust pipeline is connected with a neutralization air inlet pipeline; the high-pressure pipeline is connected with the sampling pipeline through a three-way joint, the three-way joint is connected with a low-pressure pipeline, and the low-pressure pipeline is connected with a neutral air inlet pipeline.
The reference numbers in the figures mean: 1-neutralization tank; 101-neutralization chamber one; 102-hydrogen sulfide detector; 103-neutralization intake line; 104-gas distributor one; 105-a neutralization overflow line; 106-gas distributor two; 107-neutralization chamber two; 108-vent overflow line; 109-evacuation chamber; 2-a sampling container; 201-sampling exhaust line; 202-sampling exhaust valve; 203-sampling intake line; 204-sampling air inlet valve; 3, an air pump; 301 — air displacement valve; 4-a sampling line; 401-sampling stop valve; 5-a three-way joint; 6-low pressure line; 601-emptying stop valve; 602-low pressure exhaust valve; 7-high pressure line; 701-high pressure air inlet valve.
Detailed Description
The invention relates to a sampling system for gas detection, in particular to a sulfur-containing natural gas sampling system, and the main technical content of the invention is explained in detail by combining the attached drawing of the specification, namely figure 1.
It is expressly noted here that the drawings of the present invention are schematic and have been simplified in unnecessary detail for the purpose of clarity and to avoid obscuring the technical solutions that the present invention contributes to the prior art.
The invention relates to a sampling system for sulfur-containing natural gas sampling operation, which is shown in figure 1 and comprises a neutralization tank 1, a sampling container 2, an air pump 3 and a three-way joint 5.
Wherein, the neutralization box 1 is a box-type container structure, and is internally provided with an emptying chamber 109 and two neutralization chambers, namely a neutralization chamber I101 and a neutralization chamber II 107, wherein the neutralization chamber I101 is positioned at the upstream of the neutralization chamber II 107, and the neutralization chamber II 107 is positioned at the upstream of the emptying chamber 109.
Specifically, the evacuation chamber 109 has an evacuation channel communicating with the outside, that is, the mouth of the evacuation chamber 109 is an openable open structure, and the hydrogen sulfide detector 102 is disposed on the inner wall of the middle upper portion of the evacuation chamber 109.
The neutralization chamber one 101 is a relatively closed structure, wherein the lower position is filled with a neutralization solution. A neutralization gas inlet line 103 extending from the outside into the neutralization chamber one 101 is connected to the neutralization chamber one 101, i.e. the gas inlet end of the neutralization gas inlet line 103 is located outside the neutralization chamber one 101 and the gas outlet end extends into the neutralization solution. The end of the neutralizing solution extending into the neutralizing chamber 101 of the neutralizing gas inlet line 103 is connected with a gas distributor 104, and the gas distributor 104 is a sieve structure formed by a stainless steel structure, and the lowest mesh number of the sieve structure is 800 meshes (such as 800 meshes, 850 meshes or 900 meshes), so that the sulfur-containing natural gas entering the neutralizing solution through the neutralizing gas inlet line 103 can be dispersed into a plurality of small bubbles to ensure that the sulfur-containing natural gas is fully contacted with the neutralizing solution and the neutralizing reaction occurs.
The second neutralization chamber 107 is also a relatively closed structure, wherein the lower position is filled with a neutralization solution. The neutralization overflow line 105 extending from the neutralization chamber I101 into the neutralization chamber II 107 is connected to the neutralization chamber II 107, namely, the gas inlet end of the neutralization overflow line 105 is positioned at the upper part (positioned above the neutralization solution) of the neutralization chamber I101, so that the natural gas in the neutralization chamber I101 can be effectively ensured to effectively enter the neutralization overflow line 105, and the gas outlet end of the neutralization overflow line 105 extends into the neutralization solution contained in the neutralization chamber II 107. The end of the neutralization overflow line 105 extending into the neutralization solution in the neutralization chamber II 107 is connected with a second gas distributor 106, and the second gas distributor 106 is a sieve structure formed by a stainless steel structure, and the lowest mesh number of the second gas distributor 106 is 800 meshes (such as 800 meshes, 850 meshes or 900 meshes), so that the sulfur-containing natural gas entering the neutralization solution through the neutralization overflow line 105 can be dispersed into a plurality of small bubbles to ensure that the sulfur-containing natural gas is fully contacted with the neutralization solution and subjected to neutralization reaction.
The arrangement structure of the two-stage neutralization chamber is beneficial to the compactness of the neutralization tank 1, and can effectively and fully neutralize the sulfur-containing natural gas entering the neutralization tank 1.
And a vent overflow line 108 is connected between the second neutralization chamber 107 and the vent chamber 109, namely the second neutralization chamber 107 is communicated with the vent chamber 109 through the vent overflow line 108. The inlet end of the vent overflow line 108 is located at the upper portion of the second neutralization chamber 107 (above the neutralized solution), which effectively ensures that the natural gas in the second neutralization chamber 107 effectively enters the vent overflow line 108, and the outlet end of the vent overflow line 108 is located below the hydrogen sulfide detector 102 in the vent chamber 109.
The sampling container 2 is a steel cylinder structure. The air inlet end of the sampling container 2 is connected with a sampling air inlet pipeline 203, the air outlet end is connected with a sampling exhaust pipeline 201, the sampling air inlet pipeline 203 is connected with a sampling air inlet valve 204, and the sampling exhaust pipeline 201 is connected with a sampling exhaust valve 202. The aforementioned sampling intake line 203 is connected to a high-pressure line 7 described below and the air pump 3, the high-pressure line 7 and the air pump 3 being upstream of the sampling intake valve 204. The aforementioned sample exhaust line 201 is connected to the aforementioned neutralization intake line 103, the neutralization intake line 103 being downstream of the sample exhaust valve 202.
The air pump 3 serves to generate compressed air. The air pump 3 is connected to the sampling intake line 203 through a line, and an air replacement valve 301 is connected between the air pump 3 and the sampling intake line 203. The air pump 3 is used to displace the sour gas in the sampling vessel 2 and corresponding pipeline with compressed air.
The three way connection 5 is connected on the sampling pipeline 4 that the main pipeline that contains sour natural gas connects, is connected with sample stop valve 401 on the sampling pipeline 4 between three way connection 5 and the main pipeline. One joint portion of the three-way joint 5 is connected to the high-pressure line 7, and the high-pressure line 7 is connected to a high-pressure intake valve 701, and the high-pressure intake valve 701 is located upstream of the sampling intake line 203. The other joint part of the three-way joint 5 is connected with a low-pressure pipeline 6, and the tail end of the low-pressure pipeline 6 is connected with a neutralization air inlet pipeline 103; a vent cut valve 601 and a low pressure exhaust valve 602 are connected to the low pressure line 6, the vent cut valve 601 is located on the low pressure line 6 near the three-way joint 5, and the low pressure exhaust valve 602 is located on the low pressure line 6 near the neutral intake line 103.
The using process of the invention comprises four main specific operation modes of sampling container pressure relief, sampling container replacement, pipeline replacement, sampling and the like.
Wherein, the pressure release process of the sampling container is as follows:
closing the low pressure exhaust valve 602, the air displacement valve 301 and the high pressure intake valve 701;
opening the sample exhaust valve 202;
the sulfur-containing natural gas in the sampling container 2 enters a first neutralization chamber 101 of the neutralization tank 1 through a neutralization gas inlet line 103 to carry out primary neutralization reaction;
after the primary neutralization treatment, the natural gas in the neutralization chamber I101 enters the neutralization chamber II 107 of the neutralization tank 1 through a neutralization overflow line 105 to carry out secondary neutralization reaction;
after the secondary neutralization treatment, the natural gas in the second neutralization chamber 107 enters the emptying chamber 109 of the neutralization tank 1 through the emptying overflow line 108 for emptying, the hydrogen sulfide content of the emptied natural gas is detected at any time by the hydrogen sulfide detector 102 in the emptying process, and an alarm is given if the hydrogen sulfide content exceeds a standard value.
The sampling container replacement process is as follows:
closing the high pressure inlet valve 701, the low pressure outlet valve 602;
opening the air displacement valve 301, the sampling intake valve 204, the sampling exhaust valve 202;
starting the air pump 3, and pumping the displacement gas into the sampling container 2 and the like by the air pump 3 by a gas amount which is about 5 times or more than that of the displacement gas to achieve the displacement purpose.
The pipeline replacement process is as follows:
closing the sampling stop valve 401, the sampling inlet valve 204, the sampling outlet valve 202;
opening the air displacement valve 301, the high pressure inlet valve 701, the blow-off valve 601, the low pressure exhaust valve 602;
starting the air pump 3, and pumping the displacement gas into the high-pressure pipeline 7, the three-way joint 5, the low-pressure pipeline 6 and the like by the air pump 3 by a gas amount which is about 5 times or more than that of the displacement gas to achieve the displacement purpose.
The sampling process is as follows:
opening the high pressure intake valve 701, the sampling intake valve 204, the sampling exhaust valve 202;
closing the blow-off valve 601, the low pressure vent valve 602, the air displacement valve 301;
slowly opening the sampling stop valve 401 to replace the sulfur-containing natural gas in the sampling container 2 for more than 3 times according to the sampling requirement;
closing the sampling exhaust valve 202 and sampling the sour natural gas through the sampling vessel 2; and after the pressure is stable, closing the sampling air inlet valve 204 and the sampling stop valve 401 to finish sampling.
The above examples are intended to illustrate the invention, but not to limit it. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: it is still possible to modify the specific solutions of the above embodiments or to equally replace some of the technical features (for example, three neutralization chambers in the neutralization tank, the adjacent neutralization chambers being communicated by corresponding neutralization overflow lines, etc.); and such modifications or substitutions do not depart from the spirit and scope of the present invention in its essence.
Claims (10)
1. A sulfur-containing natural gas sampling system comprises a neutralization tank (1), wherein a neutralization solution is contained in the neutralization tank (1), and a neutralization gas inlet pipeline (103) extends into the neutralization solution, and is characterized in that: the end part of the neutralization gas inlet pipeline (103) extending into the neutralization solution is connected with a gas distributor capable of dispersing the sulfur-containing natural gas into a plurality of small bubbles.
2. The sour natural gas sampling system of claim 1, wherein: the neutralization tank (1) has a plurality of neutralization chambers and a relief chamber (109); the emptying chamber (109) is provided with an emptying channel communicated with the outside, and a hydrogen sulfide detector (102) is arranged in the emptying chamber (109); the neutralization chambers of the neutralization tank (1) are respectively filled with neutralization solution, the neutralization chamber at the first upstream is used for extending into a neutralization gas inlet pipeline (103), the neutralization chamber at the last downstream is communicated with the emptying chamber (109) through an emptying overflow pipeline (108), the air inlet end of the emptying overflow pipeline (108) is positioned above the neutralizing solution corresponding to the neutralizing chamber, the air outlet end is positioned below a hydrogen sulfide detector (102) in the emptying chamber (109), the neutralization chambers are communicated with each other through corresponding neutralization overflow lines in sequence from upstream to downstream, the air inlet end of each neutralization overflow line is positioned above the neutralization solution in the upstream corresponding neutralization chamber, the air outlet end of each neutralization overflow line extends into the neutralization solution in the downstream corresponding neutralization chamber, the end part of the neutralization overflow pipeline extending into the neutralization solution is connected with a gas distributor capable of dispersing the sulfur-containing natural gas into a plurality of small bubbles.
3. The sour natural gas sampling system of claim 1 or 2, wherein: the gas distributor is a sieve tube structure formed by a stainless steel structure, and the minimum mesh number on the gas distributor is 800 meshes.
4. The sour natural gas sampling system of claim 1 or 2, wherein: the sampling system further comprises a sampling container (2), wherein a sampling air inlet pipeline (203) and a sampling exhaust pipeline (201) are arranged on the sampling container (2), the sampling air inlet pipeline (203) is connected with the high-pressure pipeline (7), and the sampling exhaust pipeline (201) is connected with the neutralizing air inlet pipeline (103).
5. The sour natural gas sampling system of claim 4, wherein: and a sampling air inlet pipeline (203) of the sampling container (2) is connected with a sampling air inlet valve (204), and a sampling air outlet valve (202) is connected with a sampling air outlet pipeline (201).
6. The sour natural gas sampling system of claim 4, wherein: the sampling air inlet pipeline (203) is connected with an air pump (3), and an air replacement valve (301) is connected between the air pump (3) and the sampling air inlet pipeline (203); and a high-pressure air inlet valve (701) is connected between the sampling air inlet pipeline (203) and the high-pressure pipeline (7).
7. The sour natural gas sampling system of claim 4, wherein: the high-pressure pipeline (7) is connected with the sampling pipeline (4) through a joint, and the sampling pipeline (4) is connected to a main pipeline of the sulfur-containing natural gas.
8. The sour natural gas sampling system of claim 7, wherein: and the sampling pipeline (4) is connected with a sampling stop valve (401).
9. The sour natural gas sampling system of claim 7, wherein: the connector is connected with a low-pressure pipeline (6), and the low-pressure pipeline (6) is connected with a neutralization air inlet pipeline (103).
10. The sour natural gas sampling system of claim 9, wherein: the low-pressure pipeline (6) is connected with an emptying stop valve (601) close to the joint, and is connected with a low-pressure exhaust valve (602) close to the neutralization air inlet pipeline (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696031.8A CN112304718A (en) | 2019-07-30 | 2019-07-30 | Sulfur-containing natural gas sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696031.8A CN112304718A (en) | 2019-07-30 | 2019-07-30 | Sulfur-containing natural gas sampling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112304718A true CN112304718A (en) | 2021-02-02 |
Family
ID=74485874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910696031.8A Pending CN112304718A (en) | 2019-07-30 | 2019-07-30 | Sulfur-containing natural gas sampling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112304718A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831333A (en) * | 2010-04-18 | 2010-09-15 | 胜利油田胜利勘察设计研究院有限公司 | Method for desulphurizing natural gas in oil and gas fields |
| JP2011137765A (en) * | 2009-12-28 | 2011-07-14 | Central Res Inst Of Electric Power Ind | Sampling device |
| CN202533276U (en) * | 2012-02-17 | 2012-11-14 | 中国石油天然气股份有限公司 | Sampling device for liquid ammonia analysis |
| CN202683036U (en) * | 2012-07-05 | 2013-01-23 | 湖南万容科技股份有限公司 | Gas absorption device |
| CN103267658A (en) * | 2013-05-16 | 2013-08-28 | 云南昆钢煤焦化有限公司 | Coal gas sampling method |
| KR101359940B1 (en) * | 2013-06-24 | 2014-02-10 | 주식회사 위드텍 | Stack exhaust gas online monitoring system |
| CN105038883A (en) * | 2015-06-29 | 2015-11-11 | 中石化石油工程设计有限公司 | Wet desulphurization reactor for natural gas with high content of H2S and process of reactor |
| CN204882162U (en) * | 2015-05-26 | 2015-12-16 | 天津亿利科能源科技发展股份有限公司 | Self -disposable formula oil well associated gas hydrogen sulfide sampling test device of row of exempting from |
| CN206740462U (en) * | 2017-05-27 | 2017-12-12 | 中国成达工程有限公司 | Toxic and harmful gas enclosed sampling system |
| CN107621393A (en) * | 2017-10-12 | 2018-01-23 | 国网河北能源技术服务有限公司 | Sulfur trioxide sampling apparatus and its method of testing in a kind of flue gas |
| CN208223907U (en) * | 2018-05-24 | 2018-12-11 | 上海梓迪实验室科技有限公司 | A kind of gas sampling device suitable for high temperature and pressure |
| CN109342284A (en) * | 2018-10-22 | 2019-02-15 | 北京清新环境技术股份有限公司 | A kind of detection system and detection method for harmful substances from flue gases |
| CN209132051U (en) * | 2018-09-07 | 2019-07-19 | 中国石油化工股份有限公司 | A kind of sulfur-containing gas sampling steel cylinder front end Portable multistage dropping equipment |
-
2019
- 2019-07-30 CN CN201910696031.8A patent/CN112304718A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011137765A (en) * | 2009-12-28 | 2011-07-14 | Central Res Inst Of Electric Power Ind | Sampling device |
| CN101831333A (en) * | 2010-04-18 | 2010-09-15 | 胜利油田胜利勘察设计研究院有限公司 | Method for desulphurizing natural gas in oil and gas fields |
| CN202533276U (en) * | 2012-02-17 | 2012-11-14 | 中国石油天然气股份有限公司 | Sampling device for liquid ammonia analysis |
| CN202683036U (en) * | 2012-07-05 | 2013-01-23 | 湖南万容科技股份有限公司 | Gas absorption device |
| CN103267658A (en) * | 2013-05-16 | 2013-08-28 | 云南昆钢煤焦化有限公司 | Coal gas sampling method |
| KR101359940B1 (en) * | 2013-06-24 | 2014-02-10 | 주식회사 위드텍 | Stack exhaust gas online monitoring system |
| CN204882162U (en) * | 2015-05-26 | 2015-12-16 | 天津亿利科能源科技发展股份有限公司 | Self -disposable formula oil well associated gas hydrogen sulfide sampling test device of row of exempting from |
| CN105038883A (en) * | 2015-06-29 | 2015-11-11 | 中石化石油工程设计有限公司 | Wet desulphurization reactor for natural gas with high content of H2S and process of reactor |
| CN206740462U (en) * | 2017-05-27 | 2017-12-12 | 中国成达工程有限公司 | Toxic and harmful gas enclosed sampling system |
| CN107621393A (en) * | 2017-10-12 | 2018-01-23 | 国网河北能源技术服务有限公司 | Sulfur trioxide sampling apparatus and its method of testing in a kind of flue gas |
| CN208223907U (en) * | 2018-05-24 | 2018-12-11 | 上海梓迪实验室科技有限公司 | A kind of gas sampling device suitable for high temperature and pressure |
| CN209132051U (en) * | 2018-09-07 | 2019-07-19 | 中国石油化工股份有限公司 | A kind of sulfur-containing gas sampling steel cylinder front end Portable multistage dropping equipment |
| CN109342284A (en) * | 2018-10-22 | 2019-02-15 | 北京清新环境技术股份有限公司 | A kind of detection system and detection method for harmful substances from flue gases |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111346322B (en) | Oxygen safety system of unmanned airtight cabin under water | |
| CN112304718A (en) | Sulfur-containing natural gas sampling system | |
| US4233922A (en) | Fluid transfer system for tanker vessels | |
| US4144829A (en) | Method and apparatus for venting hydrocarbon gases from the cargo compartments of a tanker vessel | |
| CN210473555U (en) | Hydrogen sulfide gas safety processing device | |
| CN109211759B (en) | Deoxidizing device for corrosion test solution and operation method thereof | |
| CN210033385U (en) | Ancient natural gas containing sulfur and ancient natural gas not containing sulfur co-production system | |
| CN210845798U (en) | Tank unloading gas processing apparatus under ammonia refining liquid | |
| CN209894781U (en) | Hydrogen sulfide inhibitor evaluation test device | |
| CN219272651U (en) | Tail gas desulfurization device | |
| CN107460014B (en) | Natural gas desulfurization process device | |
| CN114110422B (en) | LNG ship debugging ship and debugging method | |
| CN213209652U (en) | Gaseous chlorine gas closed sampling device | |
| CN203139872U (en) | Acid gas exhaust preprocessing device of LNG (Liquefied Natural Gas) production equipment | |
| CN216900455U (en) | Explosion-proof and leakage-proof device for moisture test | |
| CN214735592U (en) | Gas-liquid separation device for biogas pretreatment equipment | |
| CN208678753U (en) | A kind of devulcanizer of suitable gas fine de-sulfur | |
| CN217418620U (en) | Gaseous preprocessing device of gas analysis appearance front end | |
| CN206872067U (en) | A kind of fluid foods unloading unit of truck tank | |
| CN220323224U (en) | Zero release system for hydrogen tail gas treatment | |
| CN213866094U (en) | Desulfurizing device | |
| CN214244328U (en) | Natural gas desulfurization device for SOFC power generation system | |
| CN220450123U (en) | Complex iron wet desulfurization device for biogas | |
| CN107444795A (en) | A kind of industrial wastewater emergency storage tank waste gas collection device and method | |
| JP2006164730A (en) | Fuel cell system and method of detecting its gas leakage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210202 |
|
| RJ01 | Rejection of invention patent application after publication |