CN100402990C - Constant presssure marsh gas measurer in testing anaerobic digestion - Google Patents
Constant presssure marsh gas measurer in testing anaerobic digestion Download PDFInfo
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- CN100402990C CN100402990C CNB2004100260236A CN200410026023A CN100402990C CN 100402990 C CN100402990 C CN 100402990C CN B2004100260236 A CNB2004100260236 A CN B2004100260236A CN 200410026023 A CN200410026023 A CN 200410026023A CN 100402990 C CN100402990 C CN 100402990C
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- gas bottle
- anaerobic digestion
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Abstract
The present invention discloses a constant pressure marsh gas measurer used for testing anaerobic digestion, which belongs to the environmental engineering field. The present invention comprises a gas collecting bottle which is communicated with a marsh gas pipe, a floating cylinder is arranged in the gas collecting bottle, a water guiding pipe is connected in the floating cylinder, the lower part of the floating cylinder is connected with a water outlet pipe and is connected out of the gas collecting bottle, and the water outlet pipe outside the gas collecting bottle is connected with a measuring tank. The yield of the marsh gas can be indirectly metered by measuring water displacement. The present invention can avoid the variation of the pressure in an anaerobic digestion bottle when the marsh gas quantity is metered by a water discharging and gas collecting method in a wastewater anaerobic digestion test; thereby, the measuring accuracy of the marsh gas can be improved, and the present invention is favorable to the stable operation of the anaerobic digestive system.
Description
Technical field
The present invention relates to a kind of biogas measurement mechanism, particularly a kind of constant pressure type biogas measurement mechanism that is used for the anaerobic digestion test.
Background technology
In wastewater anaerobic digestive or anaerobic bio-treated, biogas output is the important indicator of reflection anaerobic digestion process.The method that is used to measure biogas output is a lot, and wherein draining water gathering of gas law is to use more a kind of.Draining water gathering of gas law is that the biogas pipe with anaerobic digestion bottle (being anaerobic digestion reaction vessel) attaches to one and fills in water and mouthful sealed bottle (being called gas bottle), from gas bottle, draw a rising pipe again, in the anaerobic digestion experimentation, the biogas that the digestion bottle produces enters gas bottle, water in the gas bottle is extruded by rising pipe, can measure biogas output indirectly by the water yield that measures the water pipe discharge.This biogas measuring apparatus is because equipment is simple, metering is convenient, in batch (-type) anaerobic digestion test, use morely, but exist in process of the test that gaseous tension in the gas bottle constantly changes and the biogas error in dipping that causes, and make anaerobic digester system be in the shortcoming of unsettled running status.
Summary of the invention
The object of the present invention is to provide a kind of constant pressure type biogas measurement mechanism that is used for the anaerobic digestion test that can eliminate measuring error and improve job stability.
Technical scheme of the present invention is achieved in that and comprises, gas bottle, on gas bottle, be communicated with a biogas pipe, its improvements are, one floating drum is installed in gas bottle, connect aqueduct in the floating drum, the water in aqueduct and the gas bottle is logical, and the floating drum bottom picks out water pipe and picks out the outer external measuring tank of rising pipe of gas bottle.Biogas output can measure indirectly by measuring water discharge.
The present invention connects rising pipe and leads to outside the gas bottle because a floating drum is installed in gas bottle under floating drum, the variation of anaerobic digestion pressure of the inside of a bottle in the time of can avoiding measuring the biogas amount, thus can improve the biogas measuring accuracy, and help the stable operation of anaerobic digester system.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Accompanying drawing is specific embodiments of the invention;
Be described in further detail below in conjunction with accompanying drawing with to content of the present invention and principle of work.
Shown in accompanying drawing, the present invention includes a gas bottle 2 that communicates with biogas pipe 1, one floating drum 3 is installed in the gas bottle 2, floating drum 3 is logical by the water in aqueduct 4 and the gas bottle 2, floating drum 3 bottoms pick out water pipe 5, rising pipe 5 picks out outside the gas bottle 2 from gas bottle 2 bottoms, constitutes constant pressure type biogas measurement mechanism.After the work beginning, the biogas that produces along with the anaerobic digestion bottle enters gas bottle 2 by biogas pipe 1, and the water surface descends in the gas bottle 2, and rising pipe 5 promptly begins to have water to discharge, and floating drum 3 also descends synchronously, keeps gas bottle 2 internal pressures constant.Thereby, the variation of anaerobic digestion pressure of the inside of a bottle in the time of can avoiding in wastewater anaerobic digestive test with draining water gathering of gas law metering biogas amount.
Because floating drum 3 links to each other with atmosphere by rising pipe 5, so, floating drum 3 inner air pressures equate with atmospheric pressure, during the work beginning, air pressure in the outer gas bottles 2 of floating drum 3 also with the atmospheric pressure approximately equal, in the gas bottle 2 in the waters surface and the floating drum 3 water surface in the aqueducts 4 equal substantially (be lower than the water surface of aqueduct 4 as the gas bottle 2 interior waters surface, gas bottle 2 internal pressures are greater than atmospheric pressure; Be higher than the water surface of aqueduct 4 as the waters surface in the gas bottle 2, have low amounts of water to flow out when then beginning, along with the waters surface in the gas bottle 2 descend, gas bottle 2 internal pressures descend, and less than atmospheric pressure), and keep balance.When the biogas of anaerobic digestion bottle generation is input to gas bottle 2 upper spaces by biogas pipe 1, gaseous tension increases in the gas bottle 2, original balance is destroyed, water in the gas bottle 2 is pressed into floating drum 3 and is discharged by rising pipe 5 from aqueduct 4, simultaneously, cause water surface decline in the gas bottle 2, floating drum 3 also descends synchronously, and gas bottle 2 internal pressures remain unchanged.The water yield of discharging equals to be input to the amount of biogas in the gas bottle 2.
In addition, among the figure, the 6th, the measuring tank that communicates with rising pipe 5.
Claims (2)
1. the constant pressure type biogas measurement mechanism of anaerobic digestion test, comprise, gas bottle (2), on gas bottle (2), be communicated with a biogas pipe (1), it is characterized in that, a floating drum (3) is installed in gas bottle (2), connect aqueduct (4) in the floating drum (3), water in aqueduct (4) and the gas bottle (2) is logical, and floating drum (3) bottom picks out water pipe (5) and picks out outside the gas bottle (2), the external measuring tank of rising pipe (5) (6).
2. the constant pressure type biogas measurement mechanism of a kind of anaerobic digestion test according to claim 1 is characterized in that rising pipe (5) picks out outside the gas bottle (2) from gas bottle (2) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260236A CN100402990C (en) | 2004-04-07 | 2004-04-07 | Constant presssure marsh gas measurer in testing anaerobic digestion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100260236A CN100402990C (en) | 2004-04-07 | 2004-04-07 | Constant presssure marsh gas measurer in testing anaerobic digestion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1563911A CN1563911A (en) | 2005-01-12 |
| CN100402990C true CN100402990C (en) | 2008-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100260236A Expired - Fee Related CN100402990C (en) | 2004-04-07 | 2004-04-07 | Constant presssure marsh gas measurer in testing anaerobic digestion |
Country Status (1)
| Country | Link |
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| CN (1) | CN100402990C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155966B (en) * | 2011-03-30 | 2012-06-27 | 黑龙江省科学院科技孵化中心 | Method for measuring marsh gas reserve in anaerobic fermenting tank and device for implementing method |
| CN103852125B (en) * | 2012-11-30 | 2016-12-21 | 深圳市龙澄高科技环保有限公司 | A kind of positive displacement small-flow gas metering device |
| CN104330536A (en) * | 2014-11-18 | 2015-02-04 | 中国科学院生态环境研究中心 | Device for determining biochemical methane production potential of biomass and operating method of device |
| CN105571646A (en) * | 2016-01-28 | 2016-05-11 | 成都绿迪科技有限公司 | Environment testing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213633U (en) * | 1987-09-25 | 1988-05-04 | 中国石油化工总公司石家庄炼油厂 | Glass instrument for preparing multi-ingredients standard gas |
| JPH10185650A (en) * | 1996-12-20 | 1998-07-14 | Sumitomo Chem Co Ltd | Method for measuring gas absorbing quantity of gas absorber and device therefor |
| CN2505816Y (en) * | 2000-03-03 | 2002-08-14 | 中国石油化工集团公司 | Sewage treatment pool waste gas measuring device |
-
2004
- 2004-04-07 CN CNB2004100260236A patent/CN100402990C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213633U (en) * | 1987-09-25 | 1988-05-04 | 中国石油化工总公司石家庄炼油厂 | Glass instrument for preparing multi-ingredients standard gas |
| JPH10185650A (en) * | 1996-12-20 | 1998-07-14 | Sumitomo Chem Co Ltd | Method for measuring gas absorbing quantity of gas absorber and device therefor |
| CN2505816Y (en) * | 2000-03-03 | 2002-08-14 | 中国石油化工集团公司 | Sewage treatment pool waste gas measuring device |
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| Publication number | Publication date |
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| CN1563911A (en) | 2005-01-12 |
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Granted publication date: 20080716 Termination date: 20100407 |