CN2549456Y - Natural gas water content and dust-contained tester - Google Patents
Natural gas water content and dust-contained tester Download PDFInfo
- Publication number
- CN2549456Y CN2549456Y CN 02275630 CN02275630U CN2549456Y CN 2549456 Y CN2549456 Y CN 2549456Y CN 02275630 CN02275630 CN 02275630 CN 02275630 U CN02275630 U CN 02275630U CN 2549456 Y CN2549456 Y CN 2549456Y
- Authority
- CN
- China
- Prior art keywords
- dust
- detection system
- laden
- moisture
- water content
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a natural gas water content and dust-contained tester in the field of producing oil and natural gas, which comprises a water content testing system and a dust-contained testing system. The water content testing system is formed by a screen pre-deduster, a water content testing cylinder and so on, while the dust-contained testing system is formed by a turbulent pre-deduster, a molecular sieve dehydration cylinder and so on; wherein, the turbulent pre-deduster is formed by a turbulent ball, a limit plate and a mist catcher. Moreover, the water content testing system and the dust-contained testing system are both provided with a corresponding pressure meter and a natural gas flow meter and are connected with a natural atmos valve. With convenient operation and simple structure, the device can, in the condition of equal speed, equal pressure and equal temperature with the natural gas production pipeline, conveniently and synchronously test the water content and the dust content of the natural gas at production site.
Description
Technical field
The utility model relates to the moisture dust detection device that contains of rock gas in oil and the gas production field.
Background technology
Rock gas produce and the defeated process of pipe in, owing to reasons such as stratum, wall erosion and abrasions, make and usually contain a certain amount of water and dust in the rock gas.
It all is to carry out in factory or on the experimental provision basically that the domestic and international at present dust-laden to rock gas detects, and its detection method all adopts the isokinetic sampling and the collecting device that dams accordingly basically, the domestic commercial production pick-up unit of really not setting up as yet.Natural Gas Inst., Sichuan Petroleum Administration adopts the filter membrane weighing method to measure particle content in the rock gas.This method of testing is because the bearing resistance of filter membrane is lower, if will under high pressure, saturation state, test, after filtering membrane has partly been tackled solid-phase media, may on film, form uneven pressure reduction, at this moment film very easily is damaged, and is difficult to find damaged situation in the actual test; Simultaneously, the greasy dirt that contains in corrosion inhibiter that adds in the rock gas in the test process and the rock gas etc. all can stick on the filter membrane, the dust content that weighing obtains behind the dry filter membrane will be more than dust content contained in the actual rock gas, and therefore, this method of testing test error is difficult to avoid.Simultaneously, because desire reaches particle more than 3～5 μ m by filter membrane interception particle diameter, selected filter membrane aperture is also very little, resistance when the dust-laden rock gas passes through filter membrane is inevitable bigger, consider the extremely low defective of bearing resistance of filter membrane, this rock gas dust dustiness detection method only can be applicable to the test of low pressure, low flow velocity rock gas, and is difficult to adapt to the actual flow condition of field gases.
In conjunction with metallurgical production and air purifying process, the assay method of dust concentration mainly contains flash spotting, electrical measuring method, ultrasound wave dust gauge method etc.; The detection method of dust dispersity mainly contains Mechanical Method (sieve method), sedimentation (sedimentation, weight sampling method, photoelectrometer method), hydrodynamic force method (in VERTICAL TUBE dirt gas partition method, in the centrifugation apparatus of spiral-flow type or tornado dust collector dirt gas partition method, the dirt gas partition method in cascade impactor), optical method (optical microscope, electron microscope, pulsed law meter), conductance method etc.These methods all are difficult to satisfy rock gas high pressure, high flow rate, inflammable and explosive, the test request of dry gas not necessarily.
Mainly contain two class methods and measure the rock gas water cut: a class is to use apparatus measures, comprises with cooling minute surface condensation hygrometer measuring the gas water dew point and directly measuring liquid water content in the rock gas with electrolytic liquid water content analyser; Another kind of is to use chemical gauging, comprises karl Fischer method, phosphorus pentoxide absorption process and colourimetry.These methods have been put into ISO, GB or SY standard, and its major advantage is that measuring accuracy is higher, and Natural Gas Inst., Sichuan Petroleum Administration is studied the karl Fischer coulometry, and the measurement range of water is a volume fraction 0～3500 * 10 in the rock gas
-6, the relative error of mensuration is less than ± 5%, and the relative standard deviation of variable concentrations scope is respectively ± and 1.5% and ± 2.0%, as seen the karl Fischer coulometry is a kind of highly sensitive, easy and simple to handle, analysis speed is fast, has the liquid water content assay method of high accuracy and precision.That yet the major defect of these class methods is to detect is narrow-minded, only be adapted to the moisture test of low saturated gas, is only applicable to liquid water content at 5～5000mg/m as karl Fischer method (titrimetry and coulometry)
3Rock gas test, and can not be used for rock gas and contain gas water assay with other components (as sulfuretted hydrogen, mercaptan and itrogenous organic substance etc.) of karl Fischer reagent reaction.
Under the high pressure in the rock gas assay method of liquid water content be that gas with certain volume is by being filled with graininess P
2O
5Absorption tube, water is by P in the gas
2O
5Absorb to form phosphoric acid, the weight that absorption tube increases be in the gas moisture amount.This method of testing is 2～3m at gas flow rate
3/ h, total volume that passes through is 1.5～3m
3Condition under, the method uncertainty be expected to be measured value ± 5% (but be not better than 5mg/m
3), detectability is expected to be 10mg/m
3, simultaneously, alcohols, mercaptan, sulfuretted hydrogen and ethylene glycol etc. contained in the gas are together with P
2O
5Reaction, thus test result influenced.Colour band length detection pipe method (ASTMD4848-88) is applied to the mensuration of water vapor in the rock gas of content below 0.5mg/L, but then can cause interference as containing alcohol compound in the gas.
Rock gas needs the rock gas water cut of test very high sometimes in actual production process, as in order to estimate the separating effect of gas-liquid separator, need be higher than 10g/m to water cut at individual well
3, the rock gas that is higher than under the 5MPa condition of pressure tests, with this understanding, above method of testing all is difficult to satisfy the test needs, must seek to satisfy the rock gas water cut detection method under higher moisture and the high pressure, and require this method to have higher measuring accuracy.
Summary of the invention
The purpose of this utility model is to provide a kind of rock gas the moisture dust detection device that contains, this device can guarantee with gas production pipeline " constant speed, equipressure, isothermal " condition under, realize the detection of rock gas water cut and dustiness easily simultaneously in the production scene.
The moisture dust detection device that contains of a kind of rock gas, comprise moisture detection system and dust-laden detection system, described moisture detection system is made up of screen mesh type pre-duster, moisture detection tube etc., described dust-laden detection system is made up of rapid ball wet dust collector, molecular sieve dehydration tube etc., described rapid ball wet dust collector is made up of turbulence ball, limiting plate, mist eliminator, described moisture detection system and dust-laden detection system all have corresponding pressure gauge and natural gas flowmeter, and link to each other with a rock gas atmospheric valve.
For realizing " constant speed " test request, in moisture detection system of the present utility model and the dust-laden detection system by-pass valve and reduction valve are arranged respectively, to carry out adjusting moisture and dust-laden detection airshed.
The inner high pressure stainless-steel tube that adopts of the utility model connects, can guarantee with actual pipeline gas " constant speed, equipressure, isothermal " condition under test, its highest test pressure can reach 15MPa.Rock gas tolerance can be measured by flowmeter, and rock gas dust-laden test tolerance can reach 1000m
3, moisture detection with molecular sieve not by saturated be principle control test tolerance, improve measuring accuracy by increasing test tolerance.The rock gas of finishing after the test can be reduced to emptying behind the normal pressure with pressure by reduction valve.
Utilizing the 3A molecular sieve to carry out moisture detection in the moisture detection tube of the utility model, is 3 * 10 because the 3A molecular sieve can only adsorb diameter less than 3.2～3.3
-10The molecule of m such as H
2O, NH
3Deng, for C
2H
6, H
2S etc. are big, and molecule is then got rid of, thereby has guaranteed the accuracy of test result to greatest extent.For preventing that the meal dirt in the rock gas from entering moisture detection tube, is provided with the screen mesh type pre-duster.
Rapid ball wet dust collector of the present utility model mainly is made up of turbulence ball, limiting plate and mist eliminator, the rock gas that enters from rapid ball wet dust collector bottom, disperse air-flow by the turbulence ball, make dust by fully wetting and be captured, the dust that is captured utilizes membrane filtration, the drying of aperture 0.2 μ m.For preventing that rock gas from through to produce ice when the throttling stifled because of band water behind the rapid ball wet dust collector, adopting the molecular sieve dehydration tube to carry out processed.
Rock gas water cut calculating method is:
In the formula: f
w---rock gas water cut, mg/m
3
G
1---the weight of the clean molecular sieve of filling before the test, mg;
G
2---the weight of moisture molecular sieve during end of test (EOT), mg;
V
1---the moisture detection tolerance of rock gas, m
3
Rock gas dustiness computing method are:
In the formula: f
d---rock gas dustiness, mg/m
3
G
4---the weight of filtration, dry back filter membrane and dust, mg;
G
3---the weight of clean filter membrane before filtering, mg;
V
2---the rock gas dust-laden detects tolerance, m
3
Compared with prior art, the utlity model has following beneficial effect:
(1) the utility model both can carry out moisture dust-laden detection to rock gas simultaneously, can carry out moisture separately again or the dust-laden detection;
(2) installation is simple, only the utility model directly need be connected with natural gas transmission pipeline during test to get final product;
(3) easy to operate, can realize rock gas synchronism detection under " constant speed, equipressure, isothermal " condition in pick-up unit and actual fed pipeline;
(4) the rock gas test pressure can be from carrying out in the 1MPa left and right sides scope near the terminal user about high-pressure gas well well head 15MPa;
(5) satisfy water cut from individual well 10g/m
3More than behind the dehydrating station 100mg/m
3Following test specification both can be used for the moisture test of dry gas, also can be used for the moisture test of moisture, was applicable to whole flow processs of gas production;
(6) utilizing test result of the present utility model also can separate the cleaner performance to existing rock gas estimates.
Description of drawings
Fig. 1 is mounting structure figure of the present utility model
Fig. 2 is the structural drawing of rapid ball wet dust collector in the utility model
Embodiment
Further specify the utility model below in conjunction with embodiment.
Referring to Fig. 1, Fig. 2, the moisture dust detection device that contains of a kind of rock gas, comprise moisture detection system and dust-laden detection system, described moisture detection system is made up of screen mesh type pre-duster 2, moisture detection tube 4 etc., described dust-laden detection system is made up of rapid ball wet dust collector 10, molecular sieve dehydration tube 11 etc., described rapid ball wet dust collector is made up of turbulence ball 18, limiting plate 19, mist eliminator 20, described moisture detection system and dust-laden detection system all have corresponding pressure gauge 6,13 and natural gas flowmeter 8,15, and link to each other with a rock gas atmospheric valve 16.
Be handled easily, also be separately installed with moisture testing process in described moisture detection system and the dust-laden detection system and end operation valve 9 by operation valve 3 and dust-laden testing process.
For realizing " constant speed " test request, also have by-pass valve 5,12 and reduction valve 7,14 in moisture detection system of the present utility model and the dust-laden detection system respectively, to carry out adjusting moisture and dust-laden detection airshed.
Rock gas enters the utility model by high pressure entry 1 and carries out the test of moisture, dust-laden, finishes after the test and can pressure be reduced to emptying behind the normal pressure by reduction valve 7,14.
Referring to Fig. 2, rapid ball wet dust collector 10 of the present utility model mainly is made up of turbulence ball 18, limiting plate 19 and mist eliminator 20, and after rock gas entered fly-ash separator by inlet port 17, the dust that is captured was through membrane filtration, drying.
Claims (3)
1 one kinds of moisture dust detection devices that contain of rock gas, comprise moisture detection system and dust-laden detection system, described moisture detection system is by screen mesh type pre-duster (2), moisture detection tube compositions such as (4), described dust-laden detection system is by rapid ball wet dust collector (10), molecular sieve dehydration tube compositions such as (11), described rapid ball wet dust collector (10) is by turbulence ball (18), limiting plate (19), mist eliminator (20) is formed, described moisture detection system and dust-laden detection system all have corresponding pressure gauge (6), (13) and natural gas flowmeter (8), (15), and with a rock gas atmospheric valve (16) link to each other.
2 pick-up units as claimed in claim 1 is characterized in that, have moisture testing process to end operation valve (9) by operation valve (3) and dust-laden testing process in described moisture detection system and the dust-laden detection system respectively.
3 pick-up units as claimed in claim 1 is characterized in that, by-pass valve (5), (12) and reduction valve (7), (14) are arranged respectively in described moisture detection system and the dust-laden detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275630 CN2549456Y (en) | 2002-07-03 | 2002-07-03 | Natural gas water content and dust-contained tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275630 CN2549456Y (en) | 2002-07-03 | 2002-07-03 | Natural gas water content and dust-contained tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549456Y true CN2549456Y (en) | 2003-05-07 |
Family
ID=33739636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02275630 Expired - Fee Related CN2549456Y (en) | 2002-07-03 | 2002-07-03 | Natural gas water content and dust-contained tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549456Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589938A (en) * | 2012-02-29 | 2012-07-18 | 攀钢集团西昌钢钒有限公司 | Converter gas hand-operated sampling device |
| CN103808590A (en) * | 2013-10-10 | 2014-05-21 | 马勒技术投资(中国）有限公司 | Device and method for testing fine oil mist separation efficiency |
| CN104316428A (en) * | 2014-10-13 | 2015-01-28 | 成都创源油气技术开发有限公司 | Shale adsorbed gas content analysis system |
| CN105352842A (en) * | 2015-09-29 | 2016-02-24 | 广州纤维产品检测研究院 | Gas dedusting fiber filter material PM2.5 dust filter characteristic test method |
| CN110850024A (en) * | 2018-08-21 | 2020-02-28 | 中国计量科学研究院 | Water detection calibration system, detection model establishing method and water detection method |
-
2002
- 2002-07-03 CN CN 02275630 patent/CN2549456Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589938A (en) * | 2012-02-29 | 2012-07-18 | 攀钢集团西昌钢钒有限公司 | Converter gas hand-operated sampling device |
| CN102589938B (en) * | 2012-02-29 | 2013-12-25 | 攀钢集团西昌钢钒有限公司 | Converter gas hand-operated sampling device |
| CN103808590A (en) * | 2013-10-10 | 2014-05-21 | 马勒技术投资(中国）有限公司 | Device and method for testing fine oil mist separation efficiency |
| CN103808590B (en) * | 2013-10-10 | 2017-01-18 | 马勒技术投资(中国）有限公司 | Method for testing fine oil mist separation efficiency |
| CN104316428A (en) * | 2014-10-13 | 2015-01-28 | 成都创源油气技术开发有限公司 | Shale adsorbed gas content analysis system |
| CN105352842A (en) * | 2015-09-29 | 2016-02-24 | 广州纤维产品检测研究院 | Gas dedusting fiber filter material PM2.5 dust filter characteristic test method |
| CN110850024A (en) * | 2018-08-21 | 2020-02-28 | 中国计量科学研究院 | Water detection calibration system, detection model establishing method and water detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Markovic et al. | Characterization and optimization of an online system for the simultaneous measurement of atmospheric water-soluble constituents in the gas and particle phases | |
| CN107192648B (en) | Method and system for measuring uncertainty of D50 of PM2.5 cutter | |
| CN102967491B (en) | Particle sampling device and utilize this device to carry out the method for particle detection | |
| Brauer et al. | Evaluation of the gas collection of an annular denuder system under simulated atmospheric conditions | |
| Ferm | A Na2CO3-coated denuder and filter for determination of gaseous HNO3 and particulate NO− 3-in the atmosphere | |
| CN1995956A (en) | Method and device for detecting SO3 content in flue gas | |
| Takada et al. | Experimental study on unregulated emission characteristics of turbocharged DI diesel engine with common rail fuel injection system | |
| CN106706375B (en) | Drop sampling and measuring device and method in a kind of wet flue gas | |
| CN203101128U (en) | Particulate matter sampling device | |
| CN2549456Y (en) | Natural gas water content and dust-contained tester | |
| CN105242009A (en) | Method used for detecting air purifying material purification efficiency | |
| CN102230917B (en) | Analyzing device using gas phase chromatography and inverse gas phase chromatography together | |
| CN102621173B (en) | Measurement method for oil-water ash content in gas | |
| CN111257473A (en) | Non-methane total hydrocarbon on-line detection device | |
| CN108152370A (en) | A kind of SF6And N2Mixing gas component ratio device for fast detecting and method | |
| CN103018131A (en) | Determining device and method for oil water and ash contents in gas in negative pressure state | |
| CN106066352A (en) | A kind of sulfur hexafluoride gas trace moisture content determinator and method thereof | |
| Thornton et al. | Determination of part-per-trillion levels of sulfur dioxide in humid air | |
| Laresgoiti et al. | Particle and smoke emission from a light duty diesel engine | |
| CN206208607U (en) | A kind of flue gas drop sampling apparatus suitable for coal-burning power plant | |
| CN109917052A (en) | A method of sulfuric acid mist in the organized discharge exhaust gas of measurement | |
| CN108692997A (en) | A kind of flue gas droplet content test system and its flue gas drop sampler | |
| CN114184731A (en) | Atmospheric aerosol collection and ion detection device and method | |
| CN208313750U (en) | Device for measuring impurity content in gas | |
| CN103245545B (en) | H in wet flue gas 2sO 4the pre-treatment of acid mist on-line monitoring and analytical equipment and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |