CN202075022U - On-line real-flow verification device for small natural gas flow meter - Google Patents

On-line real-flow verification device for small natural gas flow meter Download PDF

Info

Publication number
CN202075022U
CN202075022U CN2011201200172U CN201120120017U CN202075022U CN 202075022 U CN202075022 U CN 202075022U CN 2011201200172 U CN2011201200172 U CN 2011201200172U CN 201120120017 U CN201120120017 U CN 201120120017U CN 202075022 U CN202075022 U CN 202075022U
Authority
CN
China
Prior art keywords
barretter
pipeline
valve
flowmeter
flow
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.)
Expired - Lifetime
Application number
CN2011201200172U
Other languages
Chinese (zh)
Inventor
李莲明
晁琼箫
管晓东
史明亮
段晓云
安卫兵
黄双林
王忠兴
董浩民
刘玉琴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
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 China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN2011201200172U priority Critical patent/CN202075022U/en
Application granted granted Critical
Publication of CN202075022U publication Critical patent/CN202075022U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model discloses an on-line real-flow verification device for a small natural gas flow meter, which is applied to on-line detection of the small natural gas flow meter of an oil-gas field. An inlet flange is connected with a first flow stabilizing pipe through a pipeline; two standard flow pipelines are connected between the first flow stabilizing pipe and a second flow stabilizing pipe in parallel; each standard flow pipeline consists of an adjusting valve, a standard flow meter, a valve and a pipeline; the pipelines at the two ends of the standard flow meters are connected with an adjusting valve and a valve respectively; 2-10 test pipelines are connected between the second flow stabilizing pipe and a third flow stabilizing pipe and consist of a manual valve, a gauge clamping seat and a pipeline respectively; the pipelines at the two ends of the gauge clamping seat are connected with a manual valve respectively; the third flow stabilizing pipe is connected with an outlet flange through a pipeline; and the end part of the second flow stabilizing pipe is connected with an emptying valve through a pipeline. The device has the effects of realizing off-line and on-line verification of natural gas flow meters, along with high detection accuracy, simple structure and convenience in use.

Description

Rock gas small flowmeter Online fluid flow detection device
Technical field
The utility model relates to oil gas field production gas technology field, and particularly natural gas flowmeter calibrating, calibrating installation are a kind of Online fluid flow detection devices of rock gas small flowmeter.
Background technology
At present, according to the requirement of " measurement Law " and meter proof rules, must regularly examine and determine and calibrate the accuracy of the flowmeter in the gas metering, using maximum calibration methods at present be exactly off-line calibrating and dry type identification method.Wherein the off-line identification method is cascaded detected flowmeter and flow standard device exactly, makes flow flow through tested flow simultaneously and takes into account standard set-up, weighs the method for tested flowmeter accuracy grade with the metering of standard set-up.The dry type calibrating belongs to indirect multiple measurement method, only need to detect geometrical construction and each size of the flow meter component that influences flow results, calibration has the measurement instrument of related parameter with flow rate calculation and relates to the auxiliary equipment of measurement result, and checks whether the installation of instrument and operation are carried out in accordance with regulations.
In recent years, standard set-up was extensive use of abroad; At home, though history is shorter, perfect along with relevant art rules and magnitude tracing system develops very fast.Such device has become the main flow device of calibrating of high-low pressure gas meter and calibration with its high-level efficiency, wide region, higher characteristics such as accuracy.
Chinese patent publication number: CN1920498, " a kind of measurement calibrating installation " is provided, comprise valve, joint flange, proving flowmeter, connecting line, it is characterized in that this device is " U " shape pipeline, two proving flowmeters that have been installed in series on " U " shape pipeline are fixed with in the both ends of the surface of " U " shape pipeline and are used for the joint flange that links to each other with signal piping.Of the present utility model have characteristics simple in structure, easy to use, that accuracy of detection is high.Because this device is by two proving flowmeters detected flowmeter to be detected simultaneously, and two proving flowmeters are to adopt different principle of work, so just can point-devicely detect the flow in the pipeline, just can calibrate nuclear to detected flowmeter easily by the detection data of proving flowmeter.When this device is installed on the inspection vehicle, just can realize the on-the-spot online detection that all flowmeters on the pipeline are moved.
The utility model content
The purpose of this utility model is: a kind of rock gas small flowmeter Online fluid flow detection device is provided, is applicable to that the natural gas flow weight range is at (2.5~2000) m 3The calibrating of/h flowmeter.
The technical solution adopted in the utility model is: the Online fluid flow detection device of rock gas small flowmeter comprises inlet flange, first barretter, variable valve, proving flowmeter, valve, second barretter, hand valve, tong-test ammeter seat, the 3rd barretter, discharge flange and exhaust-valve; It is characterized in that: inlet flange connects first barretter by pipeline; Be parallel with two normal flow pipelines between first barretter and second barretter, described normal flow pipeline is made up of variable valve, proving flowmeter, valve and pipeline, is connected with a variable valve and a valve on the pipeline of the two ends of proving flowmeter respectively; Between second barretter and the 3rd barretter, be connected with 2~10 test line; Described test line is made up of hand valve, tong-test ammeter seat and pipeline, is connected with a hand valve on the pipeline of the two ends of tong-test ammeter seat respectively; On the 3rd barretter, be connected with discharge flange by pipeline; End at second barretter is connected with exhaust-valve by pipeline.
What described first barretter, second barretter and the 3rd barretter adopted is the steel pipe of internal diameter between 50~200mm, is welded with steel plate at the two ends of steel pipe.
Proving flowmeter on described two normal flow pipelines, what proving flowmeter adopted is the standard Roots type flowmeter; What another proving flowmeter adopted is the standard turbo flowmeter.
The beneficial effects of the utility model: the utility model rock gas small flowmeter Online fluid flow detection device, can realize off-line and in-line calibration natural gas flowmeter; Because this device detects detected flowmeter by two proving flowmeters, and two proving flowmeters are to adopt different principle of work, so just can point-devicely detect the flow in the pipeline, just can carry out calibration check to detected flowmeter easily by the detection data of proving flowmeter.When this device is installed on the inspection vehicle, just can realize the throughput ratio on the on-the-spot pipeline being detected precision height easy to use.
Description of drawings
Fig. 1 is the utility model rock gas small flowmeter Online fluid flow detection device structural representation.
Fig. 2 is the utility model calibrating installation principle of work synoptic diagram.
Among the figure, 1-inlet flange, 2-first barretter, 3-variable valve, 4-proving flowmeter, 5-valve, 6-second barretter, 7-hand valve, 8-tong-test ammeter seat, 9-the 3rd barretter, 10-discharge flange, the 11-exhaust-valve, 12-Online fluid flow detection device, 13-reduction valve, 14-stop valve, the tested flowmeter of 15-.
Embodiment
Embodiment 1: consult Fig. 1.The Online fluid flow detection device of rock gas small flowmeter comprises inlet flange 1, first barretter 2, variable valve 3, proving flowmeter 4, valve 5, second barretter 6, hand valve 7, tong-test ammeter seat 8, the 3rd barretter 9, discharge flange 10 and exhaust-valve 11.
Inlet flange 1 connects first barretter 2 by pipeline; Be parallel with two normal flow pipelines between first barretter 2 and second barretter 6, described normal flow pipeline is made up of variable valve 3, proving flowmeter 4, valve 5 and pipeline, is connected with a variable valve 3 and a valve 5 on the pipeline of the two ends of proving flowmeter 4 respectively; Between second barretter 6 and the 3rd barretter 9, be connected with 7 test line; Described 7 test line, each bar test line all is made up of hand valve 7, tong-test ammeter seat 8 and pipeline, is connected with a hand valve 7 on the pipeline of the two ends of tong-test ammeter seat 8 respectively; On the 3rd barretter 9, be connected with a discharge flange 10 by pipeline; End at second barretter 6 is connected with an exhaust-valve 11 by pipeline.
What first barretter 2, second barretter 6 and the 3rd barretter 9 adopted is that internal diameter is the steel pipe of 150mm, is welded with steel plate at the two ends of steel pipe.
Article two, what 4, one proving flowmeters of the proving flowmeter on the normal flow pipeline 4 adopted is the standard Roots type flowmeter; What another proving flowmeter 4 adopted is the standard turbo flowmeter.
The online testing process of Online fluid flow detection device of summary rock gas small flowmeter.Consult Fig. 2.On production flow line, be in series with reduction valve 13, tested flowmeter 15 and stop valve 14 successively.Be connected with take-off pipe respectively on stop valve 14 two ends pipelines, valve is arranged on the take-off pipe, there is flange the end of take-off pipe.The inlet flange 1 of rock gas small flowmeter Online fluid flow detection device 12 and discharge flange 10 are connected with flange on the take-off pipe.Close stop valve 14, make rock gas pass through Online fluid flow detection device 12.Observe the reading of tested flowmeter 15, and with proving flowmeter 4 contrast of Online fluid flow detection device 12; Judge the measurement accuracy of tested flowmeter 15.
Tested flowmeter offline inspection is just fairly simple.By inlet flange 1 and discharge flange 10 Online fluid flow detection device 12 is connected on the natural gas line.The flowmeter that needs detection is installed on tong-test ammeter seat 8; Observe the reading of tested flowmeter, and with proving flowmeter 4 contrast of Online fluid flow detection device 12; Judge the measurement accuracy of tested flowmeter.

Claims (3)

1. the Online fluid flow detection device of a rock gas small flowmeter comprises inlet flange (1), first barretter (2), variable valve (3), proving flowmeter (4), valve (5), second barretter (6), hand valve (7), tong-test ammeter seat (8), the 3rd barretter (9), discharge flange (10) and exhaust-valve (11); It is characterized in that: inlet flange (1) connects first barretter (2) by pipeline; Be parallel with two normal flow pipelines between first barretter (2) and second barretter (6), described normal flow pipeline is made up of variable valve (3), proving flowmeter (4), valve (5) and pipeline, is connected with a variable valve (3) and a valve (5) on the two ends pipeline of proving flowmeter (4) respectively; Between second barretter (6) and the 3rd barretter (9), be connected with 2~10 test line; Described test line is made up of hand valve (7), tong-test ammeter seat (8) and pipeline, is connected with a hand valve (7) on the two ends pipeline of tong-test ammeter seat (8) respectively; Upward be connected with discharge flange (10) at the 3rd barretter (9) by pipeline; End at second barretter (6) is connected with exhaust-valve (11) by pipeline.
2. the Online fluid flow detection device of rock gas small flowmeter according to claim 1, it is characterized in that: what described first barretter (2), second barretter (6) and the 3rd barretter (9) adopted is the steel pipe of internal diameter between 50~200mm, is welded with steel plate at the two ends of steel pipe.
3. the Online fluid flow detection device of rock gas small flowmeter according to claim 1 is characterized in that: the proving flowmeter (4) on described two normal flow pipelines, and what a proving flowmeter (4) adopted is the standard Roots type flowmeter; What another proving flowmeter (4) adopted is the standard turbo flowmeter.
CN2011201200172U 2011-04-22 2011-04-22 On-line real-flow verification device for small natural gas flow meter Expired - Lifetime CN202075022U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201200172U CN202075022U (en) 2011-04-22 2011-04-22 On-line real-flow verification device for small natural gas flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201200172U CN202075022U (en) 2011-04-22 2011-04-22 On-line real-flow verification device for small natural gas flow meter

Publications (1)

Publication Number Publication Date
CN202075022U true CN202075022U (en) 2011-12-14

Family

ID=45113121

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201200172U Expired - Lifetime CN202075022U (en) 2011-04-22 2011-04-22 On-line real-flow verification device for small natural gas flow meter

Country Status (1)

Country Link
CN (1) CN202075022U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104634423A (en) * 2015-02-09 2015-05-20 西安朗威科技有限公司 Method for calibrating high-pressure flow meters of water injection wells in oil fields in online manner
CN105222865A (en) * 2015-07-23 2016-01-06 中国计量学院 Turbo flow meter on-line monitoring method and device
CN107355681A (en) * 2017-08-23 2017-11-17 兰州空间技术物理研究所 A kind of feeder and air supply method for the calibration of multiple working medium gas micro
CN110118589A (en) * 2019-03-27 2019-08-13 天津新科成套仪表有限公司 A kind of apparatus and method for demarcating measuring instrument

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104634423A (en) * 2015-02-09 2015-05-20 西安朗威科技有限公司 Method for calibrating high-pressure flow meters of water injection wells in oil fields in online manner
CN104634423B (en) * 2015-02-09 2017-11-28 西安朗威科技有限公司 The method of water injection well in oil fields high-pressure flowmeter on-line proving
CN105222865A (en) * 2015-07-23 2016-01-06 中国计量学院 Turbo flow meter on-line monitoring method and device
CN107355681A (en) * 2017-08-23 2017-11-17 兰州空间技术物理研究所 A kind of feeder and air supply method for the calibration of multiple working medium gas micro
CN107355681B (en) * 2017-08-23 2019-09-10 兰州空间技术物理研究所 A kind of feeder and air supply method for the calibration of multiple working medium gas micro
CN110118589A (en) * 2019-03-27 2019-08-13 天津新科成套仪表有限公司 A kind of apparatus and method for demarcating measuring instrument

Similar Documents

Publication Publication Date Title
CN202075022U (en) On-line real-flow verification device for small natural gas flow meter
CN102435268B (en) Calibration device for gas flow meter and method thereof
CN104359661B (en) universal valve performance test device
KR101597951B1 (en) water meter testing system and water meter testing using the system
CN104180861A (en) Standard device and measuring method using mass method for detecting high-pressure gas filling flow
CN103954431A (en) Flow resistance measurement test system
CN104729637A (en) Turbine flowmeter online calibration system and method
CN105387339B (en) CNG on-site proving methods
CN201034763Y (en) Gas-actuated relay calibration stand
CN1920498A (en) Online fluid flow detection device for natural gas flowmeter
CN101482483B (en) Corrosion detection apparatus in pipe and its use method
CN103306968B (en) transformer oil pump test device and test method thereof
CN109884263A (en) A kind of dissolved oxygen sensor experimental rig and its test method
CN102889906A (en) Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof
CN103616313A (en) On-line gas density measuring method
CN101750470A (en) Performance testing device for gas pipeline drag reduction agent
CN209117139U (en) Water flow standard apparatus
KR20110073011A (en) Portable checking device for flowmeter and method to check flow measurement system using the same
CN201242456Y (en) Combined device for measurement of gas flow based on Vortex Street, equal speed tube and bypass pipe
CN106872155B (en) exhaust valve performance test system and test method
CN202836631U (en) Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection
CN204085644U (en) A kind of flow calibrating device
CN105890714A (en) Natural gas small flowmeter online real flow detection device
CN206387479U (en) It is a kind of to reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy
CN208736530U (en) A kind of water meter calibration

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20111214

CX01 Expiry of patent term