CN201126376Y - Detecting device for gas flow apparatus - Google Patents
Detecting device for gas flow apparatus Download PDFInfo
- Publication number
- CN201126376Y CN201126376Y CNU2007201052367U CN200720105236U CN201126376Y CN 201126376 Y CN201126376 Y CN 201126376Y CN U2007201052367 U CNU2007201052367 U CN U2007201052367U CN 200720105236 U CN200720105236 U CN 200720105236U CN 201126376 Y CN201126376 Y CN 201126376Y
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- gas flow
- interface
- airtight container
- hygrometer
- flow
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Abstract
A detection facility of a gas flow device relates to verification and calibration directly applied for gas flowmeter and gas flow pump. The detection device comprises a sealed container 1, an aqua storage tank 10 and a meter 18, wherein the top of the sealed container 1 is provided with a manometer interface 5, a thermometer interface 6, a hygrometer interface 7, an air outlet 3 and an air inlet 4 and the manometer interface 5, the thermometer interface 6, the hygrometer interface 7 are respectively connected with the manometer, the thermometer and the hygrometer and the air inlet 4 is connected with a checked flow facility 11 and the bottom of the sealed container 1 is provided with a flow regulating valve 8 which is connected with the meter 18 and the aqua storage tank 10 is connected with a liquor inlet 19 on the bottom of the sealed container 1 by a duct 20 and the air outlet 3, the air inlet 4 and the duct 20 are provided with valve. The detection facility can accurately measure the gas flow of 0.01L/min-10L/min and the air flow is stable and the detection facility is calibrated with accuracy class of 0.2 level and practical with simple structure.
Description
Technical field
The utility model relates to a kind of calibrating of gas flow meter, gas meter and gas flow pump and device of calibration of directly applying to.
Background technology
Gas flow standard device mainly is divided into bell-jar, piston type, soap-film formula, standard scale and sonic nozzle formula at present, the accuracy of measurement of above-mentioned gas flow standard device and measurement range are each has something to recommend him, measuring method is volumetric method and method of standard table, according to displacement volume method principle, the relative merits of comprehensive all gases flow standard, proposing with the displacement volume method is the groundwork principle, sets up the standard set-up of flow range at the little gas flow of 0.01L/min～10L/min.Present domestic gas flow standard device is in little measurement of gas flow calibration, and accuracy is low, and the calibration accuracy with standard soap-film flow standard device can only reach 1.0～2.0 grades at present, and high-precision gas meter can't be calibrated, and the calibration expense is big.
Summary of the invention
The purpose of this utility model is intended to overcome the defective of prior art, and a kind of accurate calibrating and calibration problem that solves the gas low discharge is provided, the pick-up unit of the gas flow meter of convenient and swift calibrating that has realized the multiple gases low discharge and calibration.
The pick-up unit of gas flow meter described in the utility model, comprise airtight container, liquid storage tank and measuring device, pressure tap is arranged respectively at the top of airtight container, thermometer boss, the hygrometer interface, exhausr port and air intake opening, pressure tap, thermometer boss and hygrometer interface respectively with pressure gauge, thermometer is connected with hygrometer, air intake opening be connected by the school flow apparatus, flow control valve is arranged at the bottom of airtight container, flow control valve is connected with measuring device, liquid storage tank is connected exhausr port with inlet on the sealing container bottom by pipeline, valve is all arranged on air intake opening and the pipeline.
The pick-up unit of gas flow meter described in the utility model is connected with liquid level gauge on airtight container, liquid level is counted the reading liquid level gauge.Be connected with water pump and valve on the pipeline of connection liquid storage tank and airtight container.Described flow control valve is at least one.
The pick-up unit of gas flow meter described in the utility model, for overcoming prior art problems, adopt the negative pressure substitution method with the liquid in the gas displacement airtight container, obtain the gas volume value by accurate measurement liquid volume and quality or with the volume that standard measuring device is directly measured water, because the fluid density of gas displacement is much larger than atmospheric density, thereby weighing quality accurately or measurement volumes are more or less freely, just can obtain flow value accurately divided by the time, just can accurately measure gas flow, thereby solved the technical matters of the assay calibration of high-precision gas low discharge, can adopt simultaneously different flow control valves to measure the gas of different flow, realize the calibrating and the calibration of multiple gases low discharge quickly and easily.The utility model can accurately be measured the gas flow of 0.01L/min～10L/min, steady air current, and device is by calibration, and class of accuracy reaches 0.2 grade, practicality, and simple in structure.
The utility model has demonstrated fully stability, reliability and the practicality of this utility model by using the assay calibration to more than 200 gas meters.The utility model class of accuracy is 0.2 grade, class of accuracy is higher than 0.5 grade of traditional 10L bell jar gas flow standard, and the lower limit measurement range is wide more a lot of than bell jar gas flow standard, and present domestic maximum soap-film formula gas flow standard device is 6L, class of accuracy is 0.5 grade, the utility model adopts the negative pressure method simultaneously, with atmosphere conduct stablizing source of the gas, gasmetry for tiny flow quantity, pressure surge is very small, and this just makes the utility model be better than other forms of gas flow standard rule device.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1. airtight container, 2. reading liquid level gauge, 3. exhausr port, 4. air intake opening, 5. pressure tap, 6. thermometer boss, 7. hygrometer interface, 8. flow control valve, 9. water pump, 10. liquid storage tank, 11. by the school flow apparatus, 12. valves, 13. valve, 14. valves, 17. valves, 18. measuring device, 19. inlets, 20. pipelines.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described, but is not limited to embodiment.
Embodiment
At first close valve 15 on the air intake opening 4 and the valve 16 on the flow control valve 8, open valve 12 on the inlet 19 and the valve 13 on the exhausr port 3, with water pump 9 airtight container 1 is filled water, be the convenient amount of calculating water in the airtight container 1, can connect reading liquid level gauge 2 on the airtight container 1, airtight container 1 is a standard sealed, shut-off valve 12 and valve 13, open the valve 14 between metering device being calibrated 11 and the air intake opening 4, in the present embodiment, by the school flow apparatus is flowmeter, flow control valve 8 is two, can be according to selected for use control valve for small flows or big flow control valve respectively by the size of school gas flow scope, also can be according to being adopted a plurality of flow control valves by the size of school gas flow scope in the practice process, to improve the degree of accuracy that detects, valve on the flow control valve 17 is transferred to gas flow calibrating point, pick up counting, at this moment the water of standard sealed flows into measuring device 18, measuring device 18 is a standard measuring device, write down respectively simultaneously by the temperature in school flowmeter 11 and the airtight container 1, humidity and pressure, when water can be when the liquid level the standard measuring device 18 be read, writing time t and standard volume V
s, owing to be the calibration gas flowmeter, must be revised temperature, pressure, the humidity of flowing gas, counted spinner-type flowmeter by the school flow and calculate by by the master scale flow q of school gas meter according to following formula
SN
Claims (5)
1, a kind of pick-up unit of gas flow meter, comprise airtight container (1), liquid storage tank (10) and measuring device (18), it is characterized in that, pressure tap (5) is arranged respectively at the top of airtight container (1), thermometer boss (6), hygrometer interface (7), exhausr port (3) and air intake opening (4), pressure tap (5), thermometer boss (6) and hygrometer interface (7) respectively with pressure gauge, thermometer is connected with hygrometer, air intake opening (4) be connected by school flow apparatus (11), flow control valve (8) is arranged at the bottom of airtight container (1), flow control valve (8) is connected with measuring device (18), liquid storage tank (10) is connected exhausr port (3) with inlet (19) on airtight container (1) bottom by pipeline (20), on air intake opening (4) and the pipeline (20) valve is arranged all.
2, the pick-up unit of gas flow meter according to claim 1 is characterized in that, is connected with liquid level gauge on airtight container (1).
3, the pick-up unit of gas flow meter according to claim 2 is characterized in that, liquid level is counted reading liquid level gauge (2).
4, the pick-up unit of gas flow meter according to claim 1 is characterized in that, is connected with water pump (9) and valve (12) on the pipeline (20) of connection liquid storage tank (10) and airtight container (1).
5, the pick-up unit of gas flow meter according to claim 1 is characterized in that, described flow control valve (8) is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201052367U CN201126376Y (en) | 2007-12-13 | 2007-12-13 | Detecting device for gas flow apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201052367U CN201126376Y (en) | 2007-12-13 | 2007-12-13 | Detecting device for gas flow apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126376Y true CN201126376Y (en) | 2008-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201052367U Expired - Lifetime CN201126376Y (en) | 2007-12-13 | 2007-12-13 | Detecting device for gas flow apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN201126376Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364279A (en) * | 2013-07-24 | 2013-10-23 | 中国化工橡胶株洲研究设计院 | Method for calibrating sounding balloon bursting instrument and calibration device thereof |
| 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 |
| CN104007036A (en) * | 2014-06-09 | 2014-08-27 | 中国化工株洲橡胶研究设计院有限公司 | Verifying device and method for minitype blasting instrument |
| CN105159335A (en) * | 2015-07-31 | 2015-12-16 | 连云港大发环保科技有限公司 | Discontinuous flow tiny flow control method and device used thereby |
| CN105181027A (en) * | 2015-09-01 | 2015-12-23 | 上海理工大学 | In-pipe gas-liquid two-phase countercurrent flow detection device |
| CN106932531A (en) * | 2017-04-07 | 2017-07-07 | 北京市农林科学院 | A kind of ammonia absorbs and monitoring device and its application method |
| CN108955839A (en) * | 2018-09-27 | 2018-12-07 | 河南省计量科学研究院 | Electronics soap-film flow automatic calibrator |
| CN109632036A (en) * | 2019-02-13 | 2019-04-16 | 靳殷实 | A kind of gas volume measurement displacement apparatus |
| CN109847132A (en) * | 2019-03-13 | 2019-06-07 | 中国测试技术研究院辐射研究所 | Fluid flow caliberating device and method for hemodialysis machine detector |
| CN110160611A (en) * | 2019-06-18 | 2019-08-23 | 中广核核电运营有限公司 | Liquid level calibration method and system |
| CN110174162A (en) * | 2019-05-13 | 2019-08-27 | 南京罕华流体技术有限公司 | A kind of industry measurement operating condition calibrating installation |
| CN110182952A (en) * | 2019-07-03 | 2019-08-30 | 广州博涛生物技术有限公司 | A kind of compounded carbons dosage automatic feedback and regulating device for municipal sewage plant AAO technique |
| CN114061711A (en) * | 2021-11-23 | 2022-02-18 | 湖南碧臣环境能源有限公司 | Flowmeter calibration device and flowmeter calibration method |
-
2007
- 2007-12-13 CN CNU2007201052367U patent/CN201126376Y/en not_active Expired - Lifetime
Cited By (19)
| 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 |
| 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 |
| CN103364279A (en) * | 2013-07-24 | 2013-10-23 | 中国化工橡胶株洲研究设计院 | Method for calibrating sounding balloon bursting instrument and calibration device thereof |
| CN104007036A (en) * | 2014-06-09 | 2014-08-27 | 中国化工株洲橡胶研究设计院有限公司 | Verifying device and method for minitype blasting instrument |
| CN104007036B (en) * | 2014-06-09 | 2016-09-14 | 中国化工株洲橡胶研究设计院有限公司 | A kind of method of calibration of the calibration equipment of small-sized explosion instrument |
| CN105159335A (en) * | 2015-07-31 | 2015-12-16 | 连云港大发环保科技有限公司 | Discontinuous flow tiny flow control method and device used thereby |
| CN105159335B (en) * | 2015-07-31 | 2018-11-27 | 连云港大发环保科技有限公司 | A kind of discontinuous flow tiny flow quantity control method and used device |
| CN105181027B (en) * | 2015-09-01 | 2017-09-26 | 上海理工大学 | Gas-liquid two-phase reverse flow detection means in pipe |
| CN105181027A (en) * | 2015-09-01 | 2015-12-23 | 上海理工大学 | In-pipe gas-liquid two-phase countercurrent flow detection device |
| CN106932531A (en) * | 2017-04-07 | 2017-07-07 | 北京市农林科学院 | A kind of ammonia absorbs and monitoring device and its application method |
| CN108955839A (en) * | 2018-09-27 | 2018-12-07 | 河南省计量科学研究院 | Electronics soap-film flow automatic calibrator |
| CN108955839B (en) * | 2018-09-27 | 2024-04-26 | 河南省计量科学研究院 | Automatic flow calibrating device for electronic soap film |
| CN109632036A (en) * | 2019-02-13 | 2019-04-16 | 靳殷实 | A kind of gas volume measurement displacement apparatus |
| CN109847132A (en) * | 2019-03-13 | 2019-06-07 | 中国测试技术研究院辐射研究所 | Fluid flow caliberating device and method for hemodialysis machine detector |
| CN110174162A (en) * | 2019-05-13 | 2019-08-27 | 南京罕华流体技术有限公司 | A kind of industry measurement operating condition calibrating installation |
| CN110174162B (en) * | 2019-05-13 | 2020-12-29 | 南京罕华流体技术有限公司 | Working condition calibration device for industrial metering |
| CN110160611A (en) * | 2019-06-18 | 2019-08-23 | 中广核核电运营有限公司 | Liquid level calibration method and system |
| CN110182952A (en) * | 2019-07-03 | 2019-08-30 | 广州博涛生物技术有限公司 | A kind of compounded carbons dosage automatic feedback and regulating device for municipal sewage plant AAO technique |
| CN114061711A (en) * | 2021-11-23 | 2022-02-18 | 湖南碧臣环境能源有限公司 | Flowmeter calibration device and flowmeter calibration method |
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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 |
Granted publication date: 20081001 |
|
| CX01 | Expiry of patent term |