CN2658751Y - On-line analysis device for underground coal gasification gas component - Google Patents
On-line analysis device for underground coal gasification gas component Download PDFInfo
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- CN2658751Y CN2658751Y CN 200320107426 CN200320107426U CN2658751Y CN 2658751 Y CN2658751 Y CN 2658751Y CN 200320107426 CN200320107426 CN 200320107426 CN 200320107426 U CN200320107426 U CN 200320107426U CN 2658751 Y CN2658751 Y CN 2658751Y
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- analysis device
- underground coal
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Abstract
The utility model pertains to a gas-component analysis device used for an online analysis on the components of a gasified underground coal gas, and is especially characterized in that a gas source is connected with a gas-channel distributing device, a pre-treating device, a constant-temperature control device and an analyzing and measuring meter through a pipeline. The utility model has the beneficial effects that the components of the underground coal gas can be analyzed and measured online, instantly and accurately and has an advantaged of a strong adaptability.
Description
(1) technical field under
The utility model belongs to coal gas analysis of components device, particularly a kind of underground coal gasification(UCG) coal gas composition on-line analysis device.
(2) background technology
It is China's 863 projects that coal gas is produced in underground coal gasification(UCG), and now, this project has entered the implementation phase of production.Because the underground coal composition is ever-changing, tectonic structure also varies, and therefore, the various conditions that underground coal gasification(UCG) is produced need instant onlinely be adjusted and change, and could produce qualified product, obtain maximum economic benefits.The adjustment of working condition need carry out according to the coal gas composition after the gasification, and this adjustment needs online, instant adjustment.At present, China's coal gas composition on-line analysis level does not also reach above-mentioned requirements, finishes total analysis measurement and needs 20-50 consuming time minute.Cause a long reason of above-mentioned analysis time to be, present analytical instrument can not be carried out online, immediately, analyze accurately to the coal gas composition.
(3) summary of the invention
The utility model is in order to overcome above deficiency, provide a kind of can to underground coal gas composition carry out online, immediately, analytical equipment accurately.
The utility model is realized by following measure:
Underground coal gasification(UCG) coal gas composition on-line analysis device of the present utility model, its special feature is: be connected with source of the gas, gas circuit distributor, pretreatment unit, thermostatically-controlled equipment, analysing and measuring instrument by pipeline.
On-line analysis device of the present utility model in order to be implemented in line traffic control, also includes the online production control device that carries out according to the analysis to measure result.
On-line analysis device of the present utility model, according to the requirement of underground gas composition and on-line analysis, described analysing and measuring instrument includes analysis of thermal conductivity instrument, magnetic pressure analyser, infrared analyzer.
On-line analysis device of the present utility model, described pretreatment unit comprise successively and being made up of a water washing device, secondary water washing desulfurizer, rotating centrifugal dehydrating unit and the compression refrigeration dehydrating unit of pipeline connection.
On-line analysis device of the present utility model, described one-level water washing device are the container of a sealing, and container bottom has a water inlet, and there is a water delivering orifice at the middle part, and a gas outlet is arranged at top, and air intake opening extends to 10-20 millimeter below the water delivering orifice in container.
The Main Ingredients and Appearance of underground coal gasification(UCG) coal gas be hydrogen, carbon monoxide, methane, carbon dioxide, nitrogen, oxygen, sulfuric anhydride, sulphuric dioxide, sulfuretted hydrogen, ammonia, phosphorus pentoxide, etc.According to the Gas Production requirement, need the component of analysis to measure to be generally hydrogen, carbon monoxide, methane, carbon dioxide, oxygen etc.At present, the measuring instrument of common use mainly contains measuring instruments such as chromatography, Ao Shifa, but the shortcoming of these analysing and measuring instrument maximums is that Measuring Time is long, is generally 30-60 minute, can not satisfy the requirement of on-line analysis.Analysing and measuring instrument of the present utility model requires online, instant analysis, therefore, the utility model is according to the composition of underground gas, the analysing and measuring instrument that uses is: analyze hydrogen with the analysis of thermal conductivity instrument, analyze oxygen with the magnetic pressure analyser, measure carbon monoxide, carbon dioxide and methane with infrared analyzer.
Because the composition complexity of underground coal gasification(UCG) coal gas, impurity is many, and moisture content is big, and is big to the corrosivity of analysis measuring device.Therefore, the coal gas of production enters before the analytical equipment by pipeline, needs pretreatment unit that coal gas is carried out pre-service, removes objectionable impurities such as wherein sulfuric anhydride, sulphuric dioxide, phosphorus pentoxide, tar, dust, moisture content.After reaching requirement after testing, enter analytical equipment.
Keep stable gas flow, it is the important prerequisite of guaranteeing to analyze data reliability, therefore, this analysis device must be in operating condition constantly, for guaranteeing stable gas flow, this analysis device has increased the import air pump, and by the automatic voltage regulation spinner-type flowmeter, gas flow is in time regulated.
Because temperature is bigger to the analysis to measure result influence of coal gas, therefore, this analysis device has increased automatic thermostatic controller, carries out temperature automatically controlled to the gas that enters analytical equipment, make its temperature accurately remain on 50 ± 1 ℃, the influence of having avoided temperature variation that measurement result is caused.
The variation of coal gas composition is directly handled by computing machine, by computing machine the online production control device is regulated and is handled again.By device of the present utility model, realized the on-line analysis of coal gas composition, for effective control of production technology provides exercisable technical basis.
The utility model not only carries out on-line measurement to underground coal gasification(UCG) coal gas, simultaneously, also is applied to the mine gas safety monitoring, and spontaneous combustion of coal seam is got angry and monitored gasification of coal, petrochemical complex, scientific experimentation, environmental protection etc.
The beneficial effects of the utility model are, can to underground coal gas composition carry out online, immediately, analysis to measure accurately, and have adaptable advantage.
(4) description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is made specific description
Fig. 1 is an one-piece construction synoptic diagram of the present utility model
Fig. 2 is the structural representation of a water washing device of the present utility model
Among the figure, 1 secondary water washing desulfurizer, 2 rotating centrifugal dehydrating units, 3 compression refrigeration dehydrating units, 4 analysing and measuring instruments
(5) embodiment
The one-piece construction of present embodiment analytical equipment as shown in Figure 1.The online production control device that this analysis device is connected with source of the gas, gas circuit distributor, water washing device, secondary water washing desulfurizer 1, rotating centrifugal dehydrating unit 2, stabilized pressure pump, compression refrigeration dehydrating unit 3, humidity alarm, filtrator, five-way valve, thermostatically-controlled equipment, infrared analyzer, magnetic pressure analyser, an analysis of thermal conductivity instrument in turn and carries out according to the analysis to measure result by pipeline.
The present embodiment analysis to measure for underground coal gasification(UCG) coal gas, to analyze composition be hydrogen, carbon monoxide, methane, carbon dioxide, oxygen to its composition through main after pre-service.Entering thermostatically-controlled equipment makes gas temperature accurately remain on 50 ± 1 ℃.Enter infrared analysis amount instrument, magnetic pressure analyser, analysis of thermal conductivity instrument successively, measure the content of carbon monoxide, methane, carbon dioxide, oxygen, hydrogen successively.Control center's control desk is directly handled and be uploaded to the coal gas constituent data of measuring by computing machine, central control board is regulated and handled the production control device.
Claims (5)
1. a underground coal gasification(UCG) coal gas composition on-line analysis device is characterized in that: be connected with source of the gas, gas circuit distributor, pretreatment unit, thermostatically-controlled equipment, analysing and measuring instrument (4) by pipeline.
2. on-line analysis device according to claim 1 is characterized in that: also include the online production control device that carries out according to the analysis to measure result.
3. on-line analysis device according to claim 1 and 2 is characterized in that: described analysing and measuring instrument includes analysis of thermal conductivity instrument, magnetic pressure analyser, infrared analyzer.
4. according to claim 1,2 or 3 described on-line analysis devices, it is characterized in that: described pretreatment unit comprises successively and being made up of a water washing device, secondary water washing desulfurizer (1), rotating centrifugal dehydrating unit (2) and the compression refrigeration dehydrating unit (3) of pipeline connection.
5. on-line analysis device according to claim 4, it is characterized in that: described one-level water washing device is the container of a sealing, and container bottom has a water inlet, and there is a water delivering orifice at the middle part, one gas outlet is arranged at top, and air intake opening extends to 10-20 millimeter below the water delivering orifice in container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107426 CN2658751Y (en) | 2003-12-01 | 2003-12-01 | On-line analysis device for underground coal gasification gas component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107426 CN2658751Y (en) | 2003-12-01 | 2003-12-01 | On-line analysis device for underground coal gasification gas component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2658751Y true CN2658751Y (en) | 2004-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320107426 Expired - Fee Related CN2658751Y (en) | 2003-12-01 | 2003-12-01 | On-line analysis device for underground coal gasification gas component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849300A (en) * | 2015-05-30 | 2015-08-19 | 西安科技大学 | Experiment table for researching influences of coal body gas content to coal spontaneous combustion characteristics and application method of experiment table |
| CN106198886A (en) * | 2016-08-16 | 2016-12-07 | 中为(上海)能源技术有限公司 | Gas on-line analysis system and operational approach for coal underground gasifying technology |
| US9963949B2 (en) | 2012-06-28 | 2018-05-08 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9976403B2 (en) | 2012-06-28 | 2018-05-22 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
-
2003
- 2003-12-01 CN CN 200320107426 patent/CN2658751Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9963949B2 (en) | 2012-06-28 | 2018-05-08 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9976403B2 (en) | 2012-06-28 | 2018-05-22 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
| CN104849300A (en) * | 2015-05-30 | 2015-08-19 | 西安科技大学 | Experiment table for researching influences of coal body gas content to coal spontaneous combustion characteristics and application method of experiment table |
| CN104849300B (en) * | 2015-05-30 | 2019-01-15 | 西安科技大学 | Coal gas content influences research experiment platform and its application method to coal spontaneous combustion characteristic |
| CN106198886A (en) * | 2016-08-16 | 2016-12-07 | 中为(上海)能源技术有限公司 | Gas on-line analysis system and operational approach for coal underground gasifying technology |
| CN106198886B (en) * | 2016-08-16 | 2018-08-28 | 中为(上海)能源技术有限公司 | Gas on-line analysis system and operating method for coal underground gasifying technology |
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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 |