CN201130175Y - Tester for testing CH4, CO2 and biogas slurry pH value meanwhile - Google Patents
Tester for testing CH4, CO2 and biogas slurry pH value meanwhile Download PDFInfo
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- CN201130175Y CN201130175Y CN 200720087852 CN200720087852U CN201130175Y CN 201130175 Y CN201130175 Y CN 201130175Y CN 200720087852 CN200720087852 CN 200720087852 CN 200720087852 U CN200720087852 U CN 200720087852U CN 201130175 Y CN201130175 Y CN 201130175Y
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- sensor
- instrument
- biogas
- marsh gas
- tester
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Abstract
The utility model relates to a tester which can simultaneously detect CH4 and CO2 in marsh gas and the pH value of biogas slurry, in particular to a special testing instrument which can simultaneously detect CH4 and CO2 in marsh gas components and the pH value of biogas slurry. The tester is characterized in that, an instrument measurement and control system are respectively connected with a power supply, a marsh gas component sensor, a pH sensor, an air pump, a display interface and a keyboard interface; an air inlet is connected with the left end of the marsh gas component sensor by passing a dust filter and the air pump; the right end of the marsh gas component sensor is communicated with an air outlet; the body of the instrument measurement and control system is an embedded single chip system. The tester has the advantages that the marsh gas component sensor and the pH sensor are simultaneously utilized in a single instrument, so one or both of the volume percentages of CH4 and CO2 in the mash gas components can be measured, and the pH value of biogas slurry can also be measured; the marsh gas component sensor and the pH sensor are integrated in a whole, so the total cost of instrument purchasing is reduced; the detection of marsh gas components and the pH of biogas slurry can be completed at the same time, and the detection is convenient and accurate.
Description
Technical field
The utility model relates to a kind of CH that is used for measuring simultaneously the biogas composition
4, CO
2And the special testing instrument of natural pond liquid acidity-basicity ph value
Background technology
According to country's " national production and use of marsh gas engineering construction planning (2006-2010) " and " national production and use of marsh gas service system construction scheme (trying) ", China has domestic methane tank to surpass 2,500 ten thousand at present, to reach 4,000 ten thousand by 2010, setting up a biogas technology service network according to per 400 family methane-generating pits calculates, China will build 100,000 service networks, and national requirements is equipped with a biogas composition detection instrument and a potential of hydrogen PH detecting instrument in each site.The main detection method of China's biogas composition is to adopt chemical absorption method at present, and measuring accuracy is low, needs consumptive material.Also there is the thermocatalysis of employing method to detect CH
4, this method is short serviceable life, low precision, the not CH of energy measurement high concentration
4The biogas composition detection mostly adopts the infrared absorption measurement method in the world, and price is very expensive, is difficult in production and use of marsh gas service system and promotes.In addition, liquid pH value in natural pond is to influence CH in the biogas
4The key factor of content generally should be controlled natural pond liquid PH between 6.8-7.6.Rural energy administrative authority mainly adopts the method for PH test paper to measure natural pond liquid pH value at present.This method needs manual observation, and is subjected to the color interference of natural pond liquid easily.The price comparison of digitized PH detector is expensive.Have apparent causal connection because biogas composition detection and PH detect the two class parameters that obtain, therefore be necessary integrated as an external member with both.The master budget to these two instruments is lower in China's biogas technology service system in addition, therefore above both integrated overall costs that will reduce the purchase instrument.
The applicant's patent " electrical modulation Non-Dispersive Infra-red (NDIR) (NDIR) gas sensor " (patent No. 200620098454.8), it comprises power supply interface, gas sensor optical table, instrument TT﹠C system and peripheral interface.The main body of instrument TT﹠C system is an Embedded Single Chip Microcomputer (SCM) system Aduc832, and it links to each other with gas sensor optical table, each interface.The gas sensor optical table comprises inlet, outlet, infrared light supply, light source condenser mirror, seal isolation glass sheet, air chamber, infrared eye, detector well heater, detector temperature sensor etc.Infrared light supply and infrared eye are controlled in certain temperature range, and infrared light supply sends the pulsed modulation infrared light of certain frequency simultaneously, behind air chamber, for its light intensity attenuation of wavelength of specific gas correspondence, as CO
2Infrared light to 4.26um has tangible absorption, its light intensity is responded to by infrared eye, the output pulse signal corresponding under the effect of pre-amplification circuit with concentration, after amplifying once more, the instrument TT﹠C system calculates the tested gas concentration in the air chamber, and by systems such as peripheral interface such as RS232 circuit, display interface, printing and air pump, warning output concentration coherent signal.It is fit to measure simultaneously multiple gases.
Summary of the invention
The purpose of this utility model is at above-mentioned present situation, aims to provide a kind of CH that both can measure in the biogas composition
4/ CO
2, can measure natural pond liquid pH value, tester accurately easy to detect simultaneously again.
The implementation of the utility model purpose is to detect CH in the biogas simultaneously
4, CO
2And the tester of natural pond liquid pH value, instrument TT﹠C system 5 links to each other with power supply 1, electrical modulation Non-Dispersive Infra-red (NDIR) biogas composition gas sensor 2, PH sensor 3, air pump 4, display interface 6, keyboard interface 7 respectively, air intake opening 8 is communicated with the left end of biogas component sensor 2 by dust filter unit 9, air pump 4, biogas component sensor 2 right-hand members communicate with gas outlet 10, and the main body of instrument TT﹠C system 5 is an Embedded Single Chip Microcomputer (SCM) system.
The utility model has used biogas component sensor and PH sensor simultaneously in an instrument, both can measure the CH in the biogas composition
4, CO
2One or both volumn concentration wherein can be measured the pH value of natural pond liquid again.The method that the biogas component sensor has adopted the electrical modulation Non-Dispersive Infra-red (NDIR) to absorb also can adopt other known infrared-gas detection method, measures CH simultaneously
4, CO
2The volumn concentration of wherein a kind of or two kinds, the main body of instrument TT﹠C system 5 is an Embedded Single Chip Microcomputer (SCM) system, rich functions such as A/D, D/A, I/O have been comprised as Aduc842, be used for biogas component sensor 2, PH sensor 3 Signal Processing and calculating, the display instrument that is connected by display interface 6, keyboard interface 7 shows.
The utility model has adopted the integrated of biogas component sensor and PH sensor, has reduced the total cost that instrument is bought, and can finish the detection of biogas composition and natural pond liquid PH simultaneously, and is easy to detect accurate.
Description of drawings
Fig. 1 is the utility model structured flowchart
Fig. 2 is the utility model inner structure synoptic diagram
Embodiment
With reference to Fig. 1,2, instrument TT﹠C system 5 of the present utility model links to each other with power supply 1, biogas component sensor 2, PH sensor 3, air pump 4, display interface 6, keyboard interface 7 respectively, air intake opening 8 is communicated with the left end of biogas component sensor 2 by dust filter unit 9, air pump 4, and biogas component sensor 2 right-hand members communicate with gas outlet 10.Biogas component sensor 2 is an infrared gas sensor.
The main body of instrument TT﹠C system 5 is an Embedded Single Chip Microcomputer (SCM) system, as Aduc842, has comprised rich functions such as A/D, D/A, I/O, is used for biogas component sensor 2, PH sensor 3 Signal Processing and calculating, demonstration and output etc.Its processing and calculating principle are with the applicant's patent " electrical modulation Non-Dispersive Infra-red (NDIR) (NDIR) gas sensor " (patent No. 200620098454.8), acting as to instrument TT﹠C system 5 of keyboard interface 7 provides parameter input and setting, the effect of display interface 6 is to connect display instrument, shows running status of the present utility model and measurement result by display instrument.
During detection, air intake opening 8 of the present utility model is connected in the biogas pipeline, PH sensor 3 probes insert in the liquid of natural pond, and biogas component sensor 2, PH sensor 3 have obtained the CH in the biogas respectively
4, CO
2Wherein a kind of or two kinds of amounts and pH value are passed to instrument TT﹠C system 5, and display instrument demonstrates CH
4, CO
2The volumn concentration and the pH value of wherein a kind of or two kinds.
Claims (3)
1. can detect CH in the biogas simultaneously
4, CO
2And the tester of natural pond liquid pH value, it is characterized in that instrument TT﹠C system (5) links to each other with power supply (1), biogas component sensor (2), PH sensor (3), air pump (4), display interface (6), keyboard interface (7) respectively, air intake opening (8) is communicated with the left end of biogas component sensor (2) by dust filter unit (9), air pump (4), biogas component sensor (2) right-hand member communicates with gas outlet (10), and the main body of instrument TT﹠C system (5) is an Embedded Single Chip Microcomputer (SCM) system.
2, according to claim 1ly can detect CH in the biogas simultaneously
4, CO
2And the tester of natural pond liquid pH value, it is characterized in that PH sensor (3) is a kind of glass electrode or the solid-state electrode of macromolecule.
3, according to claim 1ly can detect CH in the biogas simultaneously
4, CO
2And the tester of natural pond liquid pH value, it is characterized in that biogas component sensor (2) is an infrared gas sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720087852 CN201130175Y (en) | 2007-10-30 | 2007-10-30 | Tester for testing CH4, CO2 and biogas slurry pH value meanwhile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720087852 CN201130175Y (en) | 2007-10-30 | 2007-10-30 | Tester for testing CH4, CO2 and biogas slurry pH value meanwhile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130175Y true CN201130175Y (en) | 2008-10-08 |
Family
ID=40018036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720087852 Expired - Lifetime CN201130175Y (en) | 2007-10-30 | 2007-10-30 | Tester for testing CH4, CO2 and biogas slurry pH value meanwhile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130175Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004452A (en) * | 2010-08-17 | 2011-04-06 | 浙江大学 | Biogas-desulphurizing automatic control system and method based on detection of methane, hydrogen sulfide and oxygen gas contents |
| CN101587068B (en) * | 2009-05-27 | 2012-03-28 | 陈小英 | Multi-sensor gas analyzer |
| CN103175944A (en) * | 2013-02-27 | 2013-06-26 | 北京师范大学 | Monitoring and early-warning platform based on biogas system energy utilizing efficiency method |
| CN109115716A (en) * | 2018-07-12 | 2019-01-01 | 镇江市爱威尔电子有限公司 | A kind of Multifunction infrared gas sensor |
| CN111121859A (en) * | 2018-10-31 | 2020-05-08 | 卉森(上海)生物科技有限公司 | Biogas slurry concentration real-time detection device |
-
2007
- 2007-10-30 CN CN 200720087852 patent/CN201130175Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587068B (en) * | 2009-05-27 | 2012-03-28 | 陈小英 | Multi-sensor gas analyzer |
| CN102004452A (en) * | 2010-08-17 | 2011-04-06 | 浙江大学 | Biogas-desulphurizing automatic control system and method based on detection of methane, hydrogen sulfide and oxygen gas contents |
| CN102004452B (en) * | 2010-08-17 | 2012-05-30 | 浙江大学 | Biogas-desulphurizing automatic control system and method based on detection of methane, hydrogen sulfide and oxygen gas contents |
| CN103175944A (en) * | 2013-02-27 | 2013-06-26 | 北京师范大学 | Monitoring and early-warning platform based on biogas system energy utilizing efficiency method |
| CN103175944B (en) * | 2013-02-27 | 2014-11-19 | 北京师范大学 | Monitoring and early-warning platform based on biogas system energy utilizing efficiency method |
| CN109115716A (en) * | 2018-07-12 | 2019-01-01 | 镇江市爱威尔电子有限公司 | A kind of Multifunction infrared gas sensor |
| CN111121859A (en) * | 2018-10-31 | 2020-05-08 | 卉森(上海)生物科技有限公司 | Biogas slurry concentration real-time detection device |
| CN111121859B (en) * | 2018-10-31 | 2022-09-20 | 卉森(上海)生物科技有限公司 | Biogas slurry concentration real-time detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081008 |