CN101576403A - Gas flow standard device - Google Patents

Gas flow standard device Download PDF

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Publication number
CN101576403A
CN101576403A CNA2008100161065A CN200810016106A CN101576403A CN 101576403 A CN101576403 A CN 101576403A CN A2008100161065 A CNA2008100161065 A CN A2008100161065A CN 200810016106 A CN200810016106 A CN 200810016106A CN 101576403 A CN101576403 A CN 101576403A
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CN
China
Prior art keywords
standard
nozzle
gas flow
input end
meter
Prior art date
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.)
Pending
Application number
CNA2008100161065A
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Chinese (zh)
Inventor
孙铭泽
孙永岐
Original Assignee
孙永岐
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 孙永岐 filed Critical 孙永岐
Priority to CNA2008100161065A priority Critical patent/CN101576403A/en
Publication of CN101576403A publication Critical patent/CN101576403A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a gas flow standard device. The input end of a pressure-stabilizing tank (1) is connected with a nozzle collecting tube (15) which is correspondingly connected with a plurality of nozzles (4) on a nozzle container (11); the input end of a nozzle container (12) is connected with a first output end of a standard meter influx tube (10), and a second output end of the standard meter influx tube (10) is connected with a draught fan; one or more standard turbine flowmeters (5) are connected in parallel between the standard meter influx tube (10) and a detected meter influx tube (9), and the input end of the detected meter influx tube (9) is connected with one or more meter clamps (8) for mounting detected meters. A mode of combining the sound-velocity nozzles and the standard turbine flowmeters is adopted so as to exert the advantages of high stability and good repetitiveness of the sound-velocity nozzles and exert the advantages of high precision and wide measuring range of each standard turbine flowmeter.

Description

Gas flow standard device
Technical field
The present invention relates to a kind of caliberating device that is used for detected gas flowmeter accuracy.
Background technology
The existing scaling method of gas flow meter generally in the following way.First kind of mode: tested table and standard scale be cascaded detect, demarcate.The major defect of this mode is that the corresponding standard scale of tested table is when tested table type changes greatly, standard scale does not satisfy its flow range, i.e. the poor selectivity of flow point, underaction, scope is little, and also there is the cost height in the manner, detects the high shortcoming of cost.The second way: gas bell caliberating device method.The major defect of this mode is, the low precision of device own, and to require height to environment, accuracy of detection can not be satisfactory.
Summary of the invention
Technical matters to be solved by this invention is, a kind of new gas flow standard device is provided, by adopting sonic nozzle and standard turbo flowmeter structure combining form, improve and demarcate accuracy and calibrated span, in order to overcome the deficiency of above-mentioned existing method and product.
The technical solution adopted for the present invention to solve the technical problems is as follows:
A kind of gas flow standard device comprises buffer tank, it is characterized in that: the input end of buffer tank is connected with the nozzle collection tube, nozzle collection tube and the corresponding connection of a plurality of nozzles on the nozzle container; Nozzle container input end connects first output terminal of standard scale manifold trunk, and second output terminal of standard scale manifold trunk is connected with induced draft fan; Be parallel with one or an above standard turbo flowmeter between standard scale manifold trunk and the tested table manifold trunk; The input end of tested table manifold trunk is connected with the meter-clamping apparatus that is used to install tested table more than or.
The nozzle collection tube is by corresponding connection of a plurality of nozzles on a plurality of first pneumatic ball valves and cylinder assembly and the nozzle container.
On nozzle collection tube and nozzle container, be respectively arranged with pressure acquisition point and temperature acquisition point.
Also be connected with variable valve between each standard turbo flowmeter and the standard scale manifold trunk.
The input end of tested table is connected with preceding straight tube.
Be provided with pressure acquisition point or temperature acquisition point in the front and back end of each standard turbo flowmeter and the front and back end of tested table.
The present invention has following good effect:
(1), the present invention's mode of adopting sonic nozzle and standard turbo flowmeter to combine, it is high both to have brought into play sonic nozzle stability, the advantage of good reproducibility has been brought into play standard turbo flowmeter accuracy height again, the advantage of broad quantum.
(2), sonic nozzle and standard turbo flowmeter check standard each other, not only improved the reliability of package unit, and the use inconvenience of having avoided regular censorship to bring.
(3), adopt variable frequency control, and utilize induced draft fan to make air-flow power, energy-saving effect is obvious.
(4), the standard turbo flowmeter adopt many parallel, increased the flow range of tested table.
(5), accuracy of detection and staking-out work efficient increase substantially.
(6), manufacturing cost and working service cost are lower.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Further specify the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the present invention includes buffer tank 1, its output terminal is used to connect vacuum pump, and input end is connected with nozzle collection tube 15.Nozzle collection tube 15 is respectively arranged with pressure acquisition point 16 and temperature acquisition point 13 by 4 corresponding connections of a plurality of nozzles on a plurality of first pneumatic ball valves 14 and cylinder assembly and the nozzle container 11 on nozzle collection tube 15 and nozzle container 11.
Nozzle container 11 input ends connect first output terminal of standard scale manifold trunk 10 by second pneumatic ball valve 12.Second output terminal of standard scale manifold trunk 10 is connected with induced draft fan with valve 2 by pipeline 3.Be parallel with a plurality of standard turbo flowmeters 5 between standard scale manifold trunk 10 and the tested table manifold trunk 9, also be connected with variable valve between each standard turbo flowmeter 5 and the standard scale manifold trunk 10.
The input end of tested table manifold trunk 9 is connected with meter-clamping apparatus 8 respectively by a plurality of the 3rd pneumatic ball valves 6, and this meter-clamping apparatus 8 is used to install tested table.The input end of tested table all is connected with preceding straight tube 7.
Also be provided with pressure acquisition point and temperature acquisition point in the front and back end of each standard turbo flowmeter 5 and the front and back end of tested table.Computing machine carries out computing with force value and the temperature value that collects, and with instrument coefficient, the linearity or the error of indication that obtains tested table, realizes the accurate demarcation of tested table.

Claims (6)

1, a kind of gas flow standard device comprises buffer tank (1), it is characterized in that: the input end of buffer tank (1) is connected with nozzle collection tube (15), the corresponding connection of a plurality of nozzles (4) on nozzle collection tube (15) and the nozzle container (11); Nozzle container (11) input end connects first output terminal of standard scale manifold trunk (10), and second output terminal of standard scale manifold trunk (10) is connected with induced draft fan; Be parallel with one or an above standard turbo flowmeter (5) between standard scale manifold trunk (10) and the tested table manifold trunk (9); The input end of tested table manifold trunk (9) is connected with the meter-clamping apparatus (8) that is used to install tested table more than or.
2, gas flow standard device according to claim 1 is characterized in that: nozzle collection tube (15) is by corresponding connection of a plurality of nozzles (4) on a plurality of first pneumatic ball valves (14) and cylinder assembly and the nozzle container (11).
3, gas flow standard device according to claim 1 is characterized in that: be respectively arranged with pressure acquisition point (16) and temperature acquisition point (13) on nozzle collection tube (15) and nozzle container (11).
4, gas flow standard device according to claim 1 is characterized in that: also be connected with variable valve between each standard turbo flowmeter (5) and the standard scale manifold trunk (10).
5, gas flow standard device according to claim 1 is characterized in that: the input end of tested table is connected with preceding straight tube (7).
6, gas flow standard device according to claim 1 is characterized in that: be provided with pressure acquisition point or temperature acquisition point in the front and back end of each standard turbo flowmeter (5) and the front and back end of tested table.
CNA2008100161065A 2008-05-05 2008-05-05 Gas flow standard device Pending CN101576403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100161065A CN101576403A (en) 2008-05-05 2008-05-05 Gas flow standard device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100161065A CN101576403A (en) 2008-05-05 2008-05-05 Gas flow standard device

Publications (1)

Publication Number Publication Date
CN101576403A true CN101576403A (en) 2009-11-11

Family

ID=41271398

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100161065A Pending CN101576403A (en) 2008-05-05 2008-05-05 Gas flow standard device

Country Status (1)

Country Link
CN (1) CN101576403A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288262A (en) * 2011-05-04 2011-12-21 中国航空工业集团公司西安飞机设计研究所 Heat radiator cold-side wind rate on-site verifying method
CN104215305A (en) * 2013-06-04 2014-12-17 宁夏嘉翔自控技术有限公司 Full-automatic supersonic nozzle high flow standard device
CN104422498A (en) * 2013-08-30 2015-03-18 中国石油天然气股份有限公司 Natural gas flow measuring ring detecting section device capable of reducing natural gas pulsating flow
CN104501917A (en) * 2015-01-04 2015-04-08 镇江市计量检定测试中心 Ultra-large diameter sonic nozzle block type gas flowmeter calibrating device
CN105371927A (en) * 2015-11-13 2016-03-02 杭州中沛电子有限公司 Meter clamping apparatus with self-locking device
CN108827407A (en) * 2018-04-08 2018-11-16 广州能源检测研究院 A kind of regulating device and adjusting method of automatic-balancing system back pressure ratio

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288262A (en) * 2011-05-04 2011-12-21 中国航空工业集团公司西安飞机设计研究所 Heat radiator cold-side wind rate on-site verifying method
CN104215305A (en) * 2013-06-04 2014-12-17 宁夏嘉翔自控技术有限公司 Full-automatic supersonic nozzle high flow standard device
CN104422498A (en) * 2013-08-30 2015-03-18 中国石油天然气股份有限公司 Natural gas flow measuring ring detecting section device capable of reducing natural gas pulsating flow
CN104422498B (en) * 2013-08-30 2018-09-04 中国石油天然气股份有限公司 The natural gas flow measuring circuit for cutting down natural gas Pulsating Flow detects section apparatus
CN104501917A (en) * 2015-01-04 2015-04-08 镇江市计量检定测试中心 Ultra-large diameter sonic nozzle block type gas flowmeter calibrating device
CN104501917B (en) * 2015-01-04 2018-09-18 镇江市计量检定测试中心 Super large caliber sonic nozzle group formula gas flowmeter calibrating installation
CN105371927A (en) * 2015-11-13 2016-03-02 杭州中沛电子有限公司 Meter clamping apparatus with self-locking device
CN105371927B (en) * 2015-11-13 2018-06-19 杭州中沛电子有限公司 A kind of meter-clamping apparatus with self-locking device
CN108827407A (en) * 2018-04-08 2018-11-16 广州能源检测研究院 A kind of regulating device and adjusting method of automatic-balancing system back pressure ratio

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20091111