CN100501347C - Laboratory gas collection metering device - Google Patents
Laboratory gas collection metering device Download PDFInfo
- Publication number
- CN100501347C CN100501347C CNB2007101568657A CN200710156865A CN100501347C CN 100501347 C CN100501347 C CN 100501347C CN B2007101568657 A CNB2007101568657 A CN B2007101568657A CN 200710156865 A CN200710156865 A CN 200710156865A CN 100501347 C CN100501347 C CN 100501347C
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- Prior art keywords
- gas collection
- collection metering
- gas
- storage tank
- metering cylinder
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- 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.)
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Abstract
The present invention discloses a laboratory gas collection metering device and comprises a graduated gas collection metering cylinder, a spherical air storage tank, a syphon and a base. The lower end of the graduated gas collection metering cylinder is connected with one end of the spherical air storage tank through the syphon; the lower part of the syphon is provided with the base; the other end of the spherical air storage tank is provided with an opening and is communicated with air. In the invention, the graduated gas collection metering cylinder is filled with water and is in liquid seal by the spherical air storage tank; the gas which needs to collect and meter is led to the graduated gas collection metering cylinder by the spherical air storage tank and the syphon; with the discharged water volume equal to the gas volume, the gas volume can be read through the scale on the gas collection metering cylinder and little water-fast gas (0-25ml) can be metered. The invention is simple in structure, and convenient and accurate in use.
Description
Technical field
The present invention relates to the gas dosing instrument, relate in particular to a kind of laboratory gas collection metering device.
Background technology
In the chemistry of many generation gases, biological respinse, usually to collect metering to the gas that is produced.Method commonly used has pressure differential method, drainage, syringe collecting method etc.The interior pressure reduction of closed container measured the gas of generation before and after pressure differential method utilized aerogenesis, and is bigger to the error in dipping of a small amount of gas.Drainage utilizes the water-fast character of gas, measures the gas of generation by the water yield that is replaced by gas, is applicable to the metering of a small amount of gas.Move behind the pressure pushing syringe piston that the syringe collecting method utilizes gas to produce, by the metering of the scale on syringe gas owing to have certain resistance between syringe and the piston, when gas production rate hour, error in dipping is bigger.
Summary of the invention
The invention provides a kind of convenient, laboratory gas collection metering device accurately.
Laboratory gas collection metering device comprises band scale gas collection metering cylinder, spherical aqua storage tank, bend pipe, base, band scale gas collection metering cylinder lower end is connected by bend pipe with spherical aqua storage tank one end, the bend pipe below is provided with base, and the spherical aqua storage tank other end is uncovered, communicates with atmosphere.
Described gas collection metering cylinder upper end closed, the scale numerical value on the gas collection metering cylinder increase from top to bottom gradually.The scale numerical value of the gas collection metering cylinder of band scale is 0～25ml, and the scale minimum rate of accumulation is higher than the highest liquid level line of aqua storage tank.
The present invention will be with the gas collection metering cylinder fills with water of scale and by spherical aqua storage tank fluid-tight, the gas of needs being collected metering imports in the gas collection metering cylinder of band scale through spherical aqua storage tank and bend pipe, the volume that utilization arranges water equals the volume of gas, and gas volume can be read by the scale on the gas collection metering cylinder.Can measure a small amount of (0～25ml) water-fast gas.The present invention is simple in structure, and is easy to use, accurate.
Description of drawings
Accompanying drawing is the structural representation of gas collection metering device; Among the figure: gas collection metering cylinder 1, spherical aqua storage tank 2, bend pipe 3, the base 4 of band scale.
Embodiment
As shown in drawings, laboratory gas collection metering device comprises band scale gas collection metering cylinder 1, spherical aqua storage tank 2, bend pipe 3, base 4, band scale gas collection metering cylinder 1 lower end is connected by bend pipe 3 with spherical aqua storage tank 2 one ends, bend pipe 3 belows are provided with base 4, spherical aqua storage tank 4) other end is uncovered, communicates with atmosphere.
Described gas collection metering cylinder 1 upper end closed, the scale numerical value on the gas collection metering cylinder 1 increase from top to bottom gradually.The scale numerical value of the gas collection metering cylinder 1 of band scale is 0～25ml, and the scale minimum rate of accumulation is higher than the highest liquid level line of aqua storage tank, the influence of avoiding hydraulic pressure to bring.
During work, earlier water is filled the elliposoidal tank, the inclination gas collection metering device utilizes bridge piece that water is transferred in the gas collection metering cylinder of band scale, treat that gas collection metering cylinder with scale all is full of by water after, recover gas collection metering device; The gas that will need then to collect metering imports in the gas collection metering cylinder of band scale through spherical aqua storage tank and bend pipe.Because the volume of water that water-fast gas arranges equals the volume of gas itself.Therefore, gas volume can be read by the scale on the gas collection metering cylinder.The present invention can measure a small amount of water-fast gas of 0～25ml.
Claims (1)
1. laboratory gas collection metering device, it is characterized in that comprising band scale gas collection metering cylinder (1), spherical aqua storage tank (2), bend pipe (3), base (4), band scale gas collection metering cylinder (1) lower end is connected by bend pipe (3) with spherical aqua storage tank (2) one ends, spherical aqua storage tank (4) other end is uncovered, communicate with atmosphere, bend pipe (3) below is provided with base (4), gas collection metering cylinder (1) upper end closed, scale numerical value on the gas collection metering cylinder (1) is 0～25ml, and the scale minimum rate of accumulation is higher than the highest liquid level line of aqua storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101568657A CN100501347C (en) | 2007-11-15 | 2007-11-15 | Laboratory gas collection metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101568657A CN100501347C (en) | 2007-11-15 | 2007-11-15 | Laboratory gas collection metering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101162167A CN101162167A (en) | 2008-04-16 |
| CN100501347C true CN100501347C (en) | 2009-06-17 |
Family
ID=39297124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101568657A Expired - Fee Related CN100501347C (en) | 2007-11-15 | 2007-11-15 | Laboratory gas collection metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100501347C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091200B (en) * | 2012-12-30 | 2015-04-22 | 浙江工业大学 | Method and device for detecting metal aluminum content in burned ash |
| CN105784927B (en) * | 2014-12-26 | 2018-03-16 | 核工业北京地质研究院 | A kind of liquid/gas measurement collection method for padded coaming test-bed |
| CN109655291A (en) * | 2018-12-30 | 2019-04-19 | 珠海市广源信科技有限公司 | A kind of inflation and measure method of damper |
| CN115448405B (en) * | 2022-10-08 | 2024-01-02 | 陕西旭强瑞清洁能源有限公司 | Sewage treatment pond exhaust gas collection device |
-
2007
- 2007-11-15 CN CNB2007101568657A patent/CN100501347C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 高考化学实验试题的创意与设计. 王后雄.化学教育，第25卷第4期. 2004 |
| 高考化学实验试题的创意与设计. 王后雄.化学教育，第25卷第4期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101162167A (en) | 2008-04-16 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20111115 |