CN104020076A - Continuous gas content measuring device - Google Patents
Continuous gas content measuring device Download PDFInfo
- Publication number
- CN104020076A CN104020076A CN201410269915.2A CN201410269915A CN104020076A CN 104020076 A CN104020076 A CN 104020076A CN 201410269915 A CN201410269915 A CN 201410269915A CN 104020076 A CN104020076 A CN 104020076A
- Authority
- CN
- China
- Prior art keywords
- gas
- control assembly
- gas circuit
- circuit control
- holder
- 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
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a continuous gas content measuring device, which comprises a data acquisition and control unit, a container containing a saturated saline solution, a gas storage tank and a liquid level sensor arranged in the gas storage tank, wherein the data acquisition and control unit comprises a master control chip; the data output end of the liquid level sensor is connected with the data input end of the master control chip; a lower opening of the gas storage tank is communicated with the container through a pipeline and a first gas path control part in a sealing way; one path of a first opening of the gas storage tank is communicated with a gas collection hole through a pipeline, a third gas path control part and a vacuum pump in the sealing way; a second opening of the gas storage tank is communicated with a desorbed gas source through a pipeline and a fourth gas path control part in the sealing way; the first gas path control part, the third gas path control part, the fourth gas path control part and the control end of the vacuum pump are connected with the control signal output end of the master control chip respectively. According to the device, the volume of desorbed gas can be directly and continuously measured, a desorbed gas sample can be collected for subsequent analysis, the device is stable and reliable, and a measurement result is accurate.
Description
Technical field
The present invention relates to a kind of air content continuous measuring device, belong to exploration technical field of measurement and test.
Background technology
Shale gas and coal-seam gas are current wide valued unconventional gas resourcess, the form of shale gas is to be stored in the free gas in natural fracture and interparticle pore, and the adsorbed gas that is adsorbed on kerogen, clay particle surface is main, coal-seam gas is mainly adsorbed on matrix of coal particle surface; No matter be shale gas or coal-seam gas, the adsorbed gas that is difficult under normal temperature condition discharge has all occupied very big proportion.How fast, the total air content of the sample of desorption absorption gas, and Accurate Determining thoroughly, be amount of natural gas in estimation coal, mud shale, interbedded sand, guarantee the key point of coal-seam gas and shale gas RESERVE EVALUATION result accuracy.
The existing air content measurement mechanism for coal, mud shale, sandstone, is mainly divided into following three kinds:
Volume flow measurement device, it obtains the volume of its cumulative volume or different time sections by measuring the volume flow rate of stripping gas; This device can obtain the continuous situation of change of gas desorption quantity, but the measuring error of gas flow rate is larger when lower for desorption rate, and the volume of fluid is very easily subject to the impact of environment temperature and pressure;
Mass flow meter, its heat of taking away according to the gas that flows through flowmeter carrys out Fluid Computation quality, the ability of the anti-environment temperature of this device and pressure influence is stronger, but the in the situation that in different desorption phase, gas composition changing, accuracy of measurement reduces greatly, especially in the site desorption gas measuring process of shale, because the passing of gas composition along with desorption time can change, measurement result is inaccurate;
Combustion method gas volume measurement mechanism, it is by the hydrocarbon gas directly burning in stripping gas, directly separate the pure hydrocarbon gas content of sucking-off, this device stability is high, can analyze the hydrocarbon gas volume in cumulative volume, but cannot obtain stripping gas sample, cause difficulty to the work such as follow-up gas composition analysis.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of air content continuous measuring device, this device can carry out direct, continuous measurement to the volume of stripping gas, can collect stripping gas sample to carry out subsequent analysis, install reliable and stablely, measurement result is comparatively accurate.
For achieving the above object, the present invention is by the following technical solutions:
Air content continuous measuring device, is characterized in that, comprise data collection and control unit, fill saturated aqueous common salt container, gas-holder, be located at the liquid level sensor in gas-holder;
Data collection and control unit comprises main control chip, and the data output end of this liquid level sensor is connected with the data input pin of this main control chip, and the lower opening of this gas-holder is communicated with this seal of vessel by pipeline, the first gas circuit control assembly; The lead up to pipeline, the 3rd gas circuit control assembly, vacuum pump of the first opening of this gas-holder are communicated with the sealing of gas collection mouth; The second opening of this gas-holder is communicated with the sealing of desorb source of the gas by pipeline, the 4th gas circuit control assembly;
The control end of this first gas circuit control assembly, the 3rd gas circuit control assembly, the 4th gas circuit control assembly, vacuum pump is connected with the control signal output terminal of this main control chip respectively.
Further,
Separately the lead up to pipeline, the second gas circuit control assembly of the first opening of described gas-holder are communicated with air-source sealing, and the control end of this second gas circuit control assembly is connected with the control signal output terminal of described main control chip.
Described data collection and control unit also comprises load module, and the output terminal of this load module is connected with the control signal input end of described main control chip.
Described data collection and control unit also comprises display module, and the data output end of described main control chip is connected with the data input pin of this display module.
Described the first gas circuit control assembly, the second gas circuit control assembly, the 3rd gas circuit control assembly, the 4th gas circuit control assembly are solenoid valve.
The invention has the advantages that:
Air content continuous measuring device of the present invention, can carry out direct, continuous measurement to the volume of stripping gas, can collect stripping gas sample to carry out subsequent analysis, install reliable and stable, affected by environment little, can be applied to the in-site measurement work of the air contents such as shale gas, coal-seam gas, and measurement result is comparatively accurate.
Accompanying drawing explanation
Fig. 1 is composition structural representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
Fig. 1 is composition structural representation of the present invention.As shown in the figure, air content continuous measuring device disclosed by the invention, comprise data collection and control unit 1, fill saturated aqueous common salt container 2, gas-holder 3, be located at liquid level sensor 4 in gas-holder 3 and for controlling the gas circuit control assembly of gas path on-off;
Data collection and control unit 1 comprises main control chip, and the data output end of liquid level sensor 4 is connected with the data input pin of main control chip, and the lower opening of gas-holder 3 is communicated with container 2 sealings by pipeline, the first gas circuit control assembly 5; The first via of the first opening of gas-holder 3 is communicated with air-source sealing by pipeline, the second gas circuit control assembly 6, and the second tunnel is communicated with 9 sealings of gas collection mouth by pipeline, the 3rd gas circuit control assembly 7, vacuum pump 8; The second opening of gas-holder 3 is communicated with the sealing of desorb source of the gas by pipeline, the 4th gas circuit control assembly 10; The control end of the first gas circuit control assembly 5, the second gas circuit control assembly 6, the 3rd gas circuit control assembly 7, the 4th gas circuit control assembly 10, vacuum pump 8 is connected with the control signal output terminal of main control chip respectively;
Data collection and control unit 1 also comprises display module and load module, the data output end of main control chip is connected with the data input pin of this display module, can show in real time the volume (form such as cumulative volume, time dependent volume curve) of stripping gas; The output terminal of load module is connected with the control signal input end of main control chip, can set respectively by load module connection or the disconnection of the first gas circuit control assembly 5, the second gas circuit control assembly 6, the 3rd gas circuit control assembly 7, the 4th gas circuit control assembly 10 and vacuum pump 8.Described the first gas circuit control assembly 5, the second gas circuit control assembly 6, the 3rd gas circuit control assembly 7, the 4th gas circuit control assembly 10 can be to disconnect or to connect the switching mode parts that gas circuit connects, as solenoid valve etc.
Described liquid level sensor can be used magnetostrictive liquid level sensor, and concrete model is LHB-0400-S01-V11, and its measuring accuracy can reach 0.1 milliliter.
The process of utilizing air content continuous measuring device of the present invention to carry out air content measurement is:
S1: desorb source of the gas and device are connected, by load module and main control chip, control and connect the first gas circuit control assembly 5, the 3rd gas circuit control assembly 7, vacuum pump 8, saturated aqueous common salt in container 2 enters gas-holder 3 through the first gas circuit control assembly 5, liquid level sensor 4 gathers the positional information of liquid in gas-holder 3, and this positional information is sent to main control chip, when the liquid level in gas-holder 3 arrives a predetermined altitude, by load module and main control chip, control and disconnect the 3rd gas circuit control assembly 7, vacuum pump 8;
S2: control and connect the 4th gas circuit control assembly 10 by load module and main control chip, stripping gas enters gas-holder 3 through the 4th gas circuit control assembly 10, along with entering of stripping gas, liquid level in gas-holder 3 constantly declines, liquid level sensor 4 gathers the positional information of liquid in gas-holder 3, and this positional information is sent to main control chip, when the liquid level in gas-holder 3 drops to a predetermined minuent, by load module, disconnect the 4th gas circuit control assembly 10;
By the distance of liquid level decline in columniform gas-holder 3, can calculate the volume of desorption gas, if the interior radius of circle of gas-holder is r, liquid level falling head is h, the volume of stripping gas is about V=π r
2h;
In addition, in the exhaust process of stripping gas, main control chip can per secondly read the liquid position information of 20 times, calculates the volume of stripping gas according to the liquid position information reading, and then draws out the time dependent volume curve of stripping gas, is beneficial to subsequent analysis.
S3: again connect the 3rd gas circuit control assembly 7, vacuum pump 8 by load module, saturated aqueous common salt is entered in gas-holder 3 again, the positional information of the liquid gathering by liquid level sensor 4, when the liquid level in gas-holder 3 arrives a predetermined altitude, disconnect the 3rd gas circuit control assembly 7, vacuum pump 8;
S4: connect the 4th gas circuit control assembly 10 by load module, stripping gas enters gas-holder 3 through the 4th gas circuit control assembly 10, the positional information of the liquid gathering by liquid level sensor 4, when the liquid level in gas-holder 3 drops to a predetermined minuent, disconnects the 4th gas circuit control assembly 10;
Repeat above-mentioned steps S3, S4, until execution step is during S4, liquid level in gas-holder 3 no longer declines, till entering gas-holder 3 without stripping gas, now, disconnect the 4th gas circuit control assembly 10, open the 3rd gas circuit control assembly 7, vacuum pump 8, the stripping gas of collecting in gas-holder 3 is discharged from gas collection mouth 9; Stripping gas disconnects the 3rd gas circuit control assembly 7, vacuum pump 8, and connects the second gas circuit control assembly 6 after all discharging, and air enters in gas-holder 3 through the second gas circuit control assembly 6, and the saturated aqueous common salt in gas-holder 3 flows back in container 2, measures and finishes.
Air content continuous measuring device of the present invention, is to utilize draining water gathering of gas law to collect desorption gas, can carry out direct, continuous measurement to the volume of stripping gas, and can collect stripping gas sample to carry out subsequent analysis; In measuring process, without external air source, avoided the impact of other gas componant on measurement result; Device picking rate is fast, and measurement result is comparatively accurate, and measurement result can be accurate to 0.1 milliliter.
The above is preferred embodiment of the present invention and the know-why used thereof; for a person skilled in the art; in the situation that not deviating from the spirit and scope of the present invention; the apparent changes such as any equivalent transformation based on technical solution of the present invention basis, simple replacement, within all belonging to protection domain of the present invention.
Claims (5)
1. air content continuous measuring device, is characterized in that, comprise data collection and control unit, fill saturated aqueous common salt container, gas-holder, be located at the liquid level sensor in gas-holder;
Data collection and control unit comprises main control chip, and the data output end of this liquid level sensor is connected with the data input pin of this main control chip, and the lower opening of this gas-holder is communicated with this seal of vessel by pipeline, the first gas circuit control assembly; The lead up to pipeline, the 3rd gas circuit control assembly, vacuum pump of the first opening of this gas-holder are communicated with the sealing of gas collection mouth; The second opening of this gas-holder is communicated with the sealing of desorb source of the gas by pipeline, the 4th gas circuit control assembly;
The control end of this first gas circuit control assembly, the 3rd gas circuit control assembly, the 4th gas circuit control assembly, vacuum pump is connected with the control signal output terminal of this main control chip respectively.
2. air content continuous measuring device as claimed in claim 1, it is characterized in that, separately the lead up to pipeline, the second gas circuit control assembly of the first opening of described gas-holder are communicated with air-source sealing, and the control end of this second gas circuit control assembly is connected with the control signal output terminal of described main control chip.
3. air content continuous measuring device as claimed in claim 2, is characterized in that, described data collection and control unit also comprises load module, and the output terminal of this load module is connected with the control signal input end of described main control chip.
4. air content continuous measuring device as claimed in claim 2 or claim 3, is characterized in that, described data collection and control unit also comprises display module, and the data output end of described main control chip is connected with the data input pin of this display module.
5. air content continuous measuring device as claimed in claim 4, is characterized in that, described the first gas circuit control assembly, the second gas circuit control assembly, the 3rd gas circuit control assembly, the 4th gas circuit control assembly are solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269915.2A CN104020076A (en) | 2014-06-17 | 2014-06-17 | Continuous gas content measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410269915.2A CN104020076A (en) | 2014-06-17 | 2014-06-17 | Continuous gas content measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104020076A true CN104020076A (en) | 2014-09-03 |
Family
ID=51436955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410269915.2A Pending CN104020076A (en) | 2014-06-17 | 2014-06-17 | Continuous gas content measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104020076A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655522A (en) * | 2015-02-02 | 2015-05-27 | 王思波 | On-site shale gas desorption analyzer |
| CN104713802A (en) * | 2015-04-01 | 2015-06-17 | 中国石油化工股份有限公司江汉油田分公司勘探开发研究院 | Method and device for testing gas content of shale gas reservoir |
| CN106643958A (en) * | 2016-12-08 | 2017-05-10 | 山东科技大学 | Underground cavity measuring method using flow quantity and flow velocity relationship |
| CN107014717A (en) * | 2017-03-29 | 2017-08-04 | 铜仁中能天然气有限公司 | The method of testing and its device of gas gas desorption quantity are lost in a kind of shale gas well |
| CN107436272A (en) * | 2017-09-16 | 2017-12-05 | 中国地质大学（武汉） | A kind of apparatus and method based on pressure differential method accurate measurement shale air content |
| CN107449693A (en) * | 2017-09-16 | 2017-12-08 | 中国地质大学（武汉） | A kind of apparatus and method that shale air content is calculated based on continuous collection free of discontinuities |
| CN107449641A (en) * | 2017-09-16 | 2017-12-08 | 中国地质大学（武汉） | A kind of continuous apparatus and method for collecting shale stripping gas free of discontinuities |
| CN107462491A (en) * | 2017-09-16 | 2017-12-12 | 中国地质大学（武汉） | A kind of full-automatic shale air content test system and method |
| CN107807068A (en) * | 2017-09-28 | 2018-03-16 | 四川省科源工程技术测试中心 | The full-automatic PVT constant volumes site desorption instrument of shale gas |
| CN110736503A (en) * | 2019-10-17 | 2020-01-31 | 浙江高成绿能科技有限公司 | continuous gas measuring device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852125A (en) * | 2012-11-30 | 2014-06-11 | 深圳市龙澄高科技环保有限公司 | Positive displacement type small-flow gas metering device |
| CN204008369U (en) * | 2014-06-17 | 2014-12-10 | 中国地质调查局油气资源调查中心 | Air content continuous measuring device |
-
2014
- 2014-06-17 CN CN201410269915.2A patent/CN104020076A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852125A (en) * | 2012-11-30 | 2014-06-11 | 深圳市龙澄高科技环保有限公司 | Positive displacement type small-flow gas metering device |
| CN204008369U (en) * | 2014-06-17 | 2014-12-10 | 中国地质调查局油气资源调查中心 | Air content continuous measuring device |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655522A (en) * | 2015-02-02 | 2015-05-27 | 王思波 | On-site shale gas desorption analyzer |
| CN104713802B (en) * | 2015-04-01 | 2018-12-04 | 中国石油化工股份有限公司江汉油田分公司勘探开发研究院 | A kind of shale gas reservoir gassiness weight testing method |
| CN104713802A (en) * | 2015-04-01 | 2015-06-17 | 中国石油化工股份有限公司江汉油田分公司勘探开发研究院 | Method and device for testing gas content of shale gas reservoir |
| CN106643958A (en) * | 2016-12-08 | 2017-05-10 | 山东科技大学 | Underground cavity measuring method using flow quantity and flow velocity relationship |
| CN106643958B (en) * | 2016-12-08 | 2019-04-09 | 山东科技大学 | A method of underground hole is measured using flow velocity relationship |
| CN107014717A (en) * | 2017-03-29 | 2017-08-04 | 铜仁中能天然气有限公司 | The method of testing and its device of gas gas desorption quantity are lost in a kind of shale gas well |
| CN107014717B (en) * | 2017-03-29 | 2024-04-12 | 上海瑞达峰致能源科技股份有限公司 | Method and device for testing desorption gas amount of lost gas in shale gas well |
| CN107462491B (en) * | 2017-09-16 | 2023-09-19 | 中国地质大学（武汉） | Full-automatic shale gas content testing system and method |
| CN107462491A (en) * | 2017-09-16 | 2017-12-12 | 中国地质大学（武汉） | A kind of full-automatic shale air content test system and method |
| CN107449641A (en) * | 2017-09-16 | 2017-12-08 | 中国地质大学（武汉） | A kind of continuous apparatus and method for collecting shale stripping gas free of discontinuities |
| CN107449693A (en) * | 2017-09-16 | 2017-12-08 | 中国地质大学（武汉） | A kind of apparatus and method that shale air content is calculated based on continuous collection free of discontinuities |
| CN107449693B (en) * | 2017-09-16 | 2023-12-01 | 中国地质大学（武汉） | Device and method for calculating shale gas content based on uninterrupted continuous collection |
| CN107449641B (en) * | 2017-09-16 | 2023-12-01 | 中国地质大学（武汉） | Device and method for continuously collecting shale desorption gas without interruption |
| CN107436272A (en) * | 2017-09-16 | 2017-12-05 | 中国地质大学（武汉） | A kind of apparatus and method based on pressure differential method accurate measurement shale air content |
| CN107807068A (en) * | 2017-09-28 | 2018-03-16 | 四川省科源工程技术测试中心 | The full-automatic PVT constant volumes site desorption instrument of shale gas |
| CN110736503A (en) * | 2019-10-17 | 2020-01-31 | 浙江高成绿能科技有限公司 | continuous gas measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104020076A (en) | Continuous gas content measuring device | |
| CN105223099B (en) | Shale gas gassiness tester and its test method | |
| CN103925950B (en) | A kind of multi-function gas parametric measurement device and using method thereof | |
| CN105547907A (en) | Servo measuring testing system and method for coal sample gas adsorption and desorption | |
| CN104359634A (en) | Mechanical seal leakage detection system and method | |
| CN204008369U (en) | Air content continuous measuring device | |
| CN103308634B (en) | Air content measurement mechanism and method | |
| CN103196785A (en) | Gas rapid measuring analysis mete and measuring method thereof | |
| CN104007041A (en) | Device for determining content of hydrogen sulfide in coal bed | |
| CN203117009U (en) | Automatic sampling device for underground gas of coal mine | |
| CN204267020U (en) | Low-permeability oil deposit individual well production fluid skid-mounted type metering device | |
| CN208654024U (en) | In-site measurement collects shale gas desorption quantity and the integrated experimental provision of component analysis | |
| CN203835378U (en) | Multifunctional gas parameter measuring device | |
| CN106198347B (en) | Rock seepage rate Auto-Test System and test method | |
| CN202793472U (en) | Single-phase liquid micro-flow meter | |
| CN205175859U (en) | Novel digital gas desorption appearance | |
| CN104155207B (en) | Gas content desorption testing device | |
| CN201926490U (en) | Exit oil/water two-phase metering system | |
| CN106771048B (en) | The high pressure water enchroachment (invasion) pore structure water content test macro of raw coal containing gas and method | |
| CN205619988U (en) | Gaseous ration meter of gassiness volume desorption | |
| CN203881388U (en) | Oil gas flowmeter | |
| CN107387067A (en) | Fine and close oil and gas reservoir pressure test process matching device and application method | |
| CN203811502U (en) | Gas content measuring instrument | |
| CN203275230U (en) | Gas fast measuring analyzer | |
| CN103822677B (en) | A kind of measuring method of constant volume tube piston type natural gas wet gas meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140903 |