CN105890714A - Natural gas small flowmeter online real flow detection device - Google Patents

Natural gas small flowmeter online real flow detection device Download PDF

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Publication number
CN105890714A
CN105890714A CN201410733980.6A CN201410733980A CN105890714A CN 105890714 A CN105890714 A CN 105890714A CN 201410733980 A CN201410733980 A CN 201410733980A CN 105890714 A CN105890714 A CN 105890714A
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China
Prior art keywords
flowmeter
barretter
pipeline
valve
natural gas
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Pending
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CN201410733980.6A
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Chinese (zh)
Inventor
王杏玉
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Changzhou Chentong Telecommunications Equipment Factory
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Changzhou Chentong Telecommunications Equipment Factory
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Priority to CN201410733980.6A priority Critical patent/CN105890714A/en
Publication of CN105890714A publication Critical patent/CN105890714A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a natural gas small flowmeter online real flow detection device applied to oil and gas filed natural gas small flowmeter online detection. 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 is composed of an adjusting valve, a standard flowmeter, a valve and pipelines, wherein the pipelines at the two ends of the standard flowmeter are connected with the adjusting valve and the valve respectively. Two to ten testing pipelines are connected between the second flow stabilizing pipe and a third flow stabilizing pipe. Each testing pipeline is composed of manual valves, a meter clamping base and pipelines, wherein the pipelines at the two ends of the meter clamping base are each connected with one manual valve. The third flow stabilizing pipe is connected with an outlet flange through a pipeline. The end of the second flow stabilizing pipe is connected with a blowoff valve through a pipeline. The natural gas small flowmeter online real flow detection device has the advantages of being capable of achieving offline and online detection of a natural gas flowmeter, high in detection precision, simple in structure and convenient to use.

Description

Natural gas small flowmeter Online fluid flow detection device
Technical field
The present invention relates to oil gas field production gas technology field, particularly to natural gas flowmeter calibrating, calibrating installation, be a kind of natural gas rill The Online fluid flow detection device of gauge.
Background technology
At present, according to " measurement Law " and the requirement of meter proof code, it is necessary to the periodically degree of accuracy to the flowmeter in gas metering Examining and determine and calibrate, currently used most calibration method is exactly Off-line calibration and dry type identification method.Wherein off-line identification method is exactly will be by Detection flowmeter is cascaded with flow standard device, makes flow flow through tested flowmeter and standard set-up, with the meter of standard set-up simultaneously Amount weighs the method for tested flowmeter accuracy grade.Dry type calibrating belongs to indirect measurement in a closed series method, only need to detect the flow affecting flow results The geometrical construction of meter parts and each portion size, calibrate and have the measuring instruments of related parameter with flow rate calculation and relate to the auxiliary equipment of measurement result, And check whether the installation of instrument and operation are carried out in accordance with regulations.
In recent years, standard set-up was widely used abroad;At home, although history is shorter, but be as relevant art regulation and amount It is worth the perfect of traceability system, develops very fast.Such device, with its high efficiency, wide scope, higher accuracy feature, has become For the calibrating of high-low pressure gas flowmeter and the main flow device of calibration.
China Patent Publication No.: CN1920498, it is provided that " a kind of measure calibrating installation ", including valve, adpting flange, proving flowmeter, Connecting line, it is characterised in that this device is " U " shape pipeline, be installed in series on " U " shape pipeline two proving flowmeters, at " U " shape pipe The both ends of the surface on road are fixed with the adpting flange for being connected with signal piping.The present invention has simple in construction, easy to use, accuracy of detection High feature.Owing to this device is to be detected detected flowmeter by two proving flowmeters simultaneously, and two proving flowmeters Being to use different operation principles, the flow that thus can point-device detect in pipeline, by the detection data of proving flowmeter Just can carry out detected flowmeter easily calibrating core.When this device is arranged on detection car, so that it may realize owning on pipeline The on-the-spot on-line checking that flowmeter moves.
Summary of the invention
It is an object of the invention to: a kind of natural gas small flowmeter Online fluid flow detection device is provided, it is adaptable to natural gas flow weight range (2.5~ 2000)m3The calibrating of/h flowmeter.
The present invention is to realize above-mentioned purpose by following technical solution:
The Online fluid flow detection device of natural gas small flowmeter, including inlet flange, the first barretter, regulation valve, proving flowmeter, valve Door, the second barretter, hand-operated valve, tong-test ammeter seat, the 3rd barretter, outlet(discharge) flange and exhaust-valve;It is characterized in that: inlet flange passes through Pipeline connects the first barretter;Two normal flow pipelines, described normal stream buret it is parallel with between first barretter and the second barretter Line is made up of regulation valve, proving flowmeter, valve and pipeline, is connected to a regulation valve on the two ends pipeline of proving flowmeter With a valve;Connect between the second barretter and the 3rd barretter and have 2~10 articles of test line;Described test line is by manually Valve, tong-test ammeter seat and pipeline composition, be connected to a hand-operated valve on the two ends pipeline of tong-test ammeter seat;3rd barretter passes through pipeline Connect and have outlet(discharge) flange;Connected by pipeline in the end of the second barretter and have exhaust-valve.
Described the first barretter, the second barretter and the 3rd barretter use internal diameter steel pipe between 50~200mm, at steel pipe Two ends be welded with steel plate.
The described proving flowmeter on two normal flow pipelines, a proving flowmeter uses standard Roots type flowmeter: another Proving flowmeter uses standard turbine meter.
Beneficial effects of the present invention: natural gas small flowmeter Online fluid flow detection device of the present invention, can realize off-line and in-line calibration natural gas Flowmeter;Owing to detected flowmeter is detected by this device by two proving flowmeters, and two proving flowmeters are to use not Same operation principle, the flow that thus can point-device detect in pipeline, just can be square by the detection data of proving flowmeter Just detected flowmeter is carried out calibration check.When this device is arranged on detection car, it is possible to realize the stream on on-the-spot pipeline Amount is than detection, and precision easy to use is high.
Accompanying drawing explanation
Fig. 1 is natural gas small flowmeter Online fluid flow detection device structural representation of the present invention.
Fig. 2 is calibrating installation operation principle schematic diagram of the present invention.
In figure, 1-inlet flange, 2-the first barretter, 3-regulates valve, 4-proving flowmeter, 5-valve, and 6-the second barretter, 7-is manual Valve, 8-tong-test ammeter seat, 9-the 3rd barretter, 10-outlet(discharge) flange, 11-exhaust-valve, 12-Online fluid flow detection device, 13-pressure-reducing valve, 14-cuts Only valve, the tested flowmeter of 15-.
Detailed description of the invention
It is clearly understood to make present disclosure be easier to, below according to specific embodiment and combine accompanying drawing, the present invention is made into one Step detailed description.
Embodiment 1: refering to Fig. 1.The Online fluid flow detection device of natural gas small flowmeter, including inlet flange the 1, first barretter 2, Regulation valve 3, proving flowmeter 4, valve the 5, second barretter 6, hand-operated valve 7, tong-test ammeter seat the 8, the 3rd barretter 9, outlet(discharge) flange 10 With exhaust-valve 11.
Inlet flange 1 connects the first barretter 2 by pipeline;It is parallel with two normal stream between first barretter 2 and the second barretter 6 Buret line, described normal flow pipeline is made up of, at proving flowmeter 4 regulation valve 3, proving flowmeter 4, valve 5 and pipeline A regulation valve 3 and a valve 5 it is connected on the pipeline of two ends;It is connected between the second barretter 6 and the 3rd barretter 9 and has 7 Bar test line;7 described test line, each test line is all made up of hand-operated valve 7, tong-test ammeter seat 8 and pipeline, at folder A hand-operated valve 7 it is connected on the two ends pipeline of gauge stand 8;3rd barretter 9 is connected by pipeline and has an outlet(discharge) flange 10; Connected by pipeline in the end of the second barretter 6 and have an exhaust-valve 11.
First barretter the 2, second barretter 6 and the 3rd barretter 9 use the steel pipe that internal diameter is 150mm, weld at the two ends of steel pipe It is connected to steel plate.
Article two, the proving flowmeter 4 on normal flow pipeline, a proving flowmeter 4 uses standard Roots type flowmeter;Another mark Quasi-flowmeter 4 uses standard turbine meter.
The Online fluid flow detection device on-line checking process of summary natural gas small flowmeter.Refering to Fig. 2.Production flow line has been sequentially connected in series Pressure-reducing valve 13, tested flowmeter 15 and stop valve 14.Stop valve 14 two ends pipeline is connected to branched pipe, branched pipe has valve Door, there is flange the end of branched pipe.By the inlet flange 1 of natural gas small flowmeter Online fluid flow detection device 12 and outlet(discharge) flange 10 with Flange joint on branched pipe.Close stop valve 14, make natural gas pass through Online fluid flow detection device 12.Observe tested flowmeter 15 Reading, and compare with the proving flowmeter 4 of Online fluid flow detection device 12;Judge the measurement accuracy of tested flowmeter 15.
Tested flowmeter offline inspection is the most fairly simple.By inlet flange 1 and outlet(discharge) flange 10, Online fluid flow detection device 12 is connected It is connected on natural gas line.Tong-test ammeter seat 8 is installed and needs the flowmeter of detection;Observe the reading of tested flowmeter, and flow in fact with online The proving flowmeter 4 of calibrating installation 12 compares;Judge the measurement accuracy of tested flowmeter.
Above one embodiment of the present of invention is described in detail, but described content has been only presently preferred embodiments of the present invention, it is impossible to recognized For the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvement etc., all should still belong to this Within bright patent covering scope.

Claims (3)

1. an Online fluid flow detection device for natural gas small flowmeter, including inlet flange (1), the first barretter (2), regulation valve (3), mark Quasi-flowmeter (4), valve (5), the second barretter (6), hand-operated valve (7), tong-test ammeter seat (8), the 3rd barretter (9), outlet(discharge) flange (10) and emptying Valve (11);It is characterized in that: inlet flange (1) connects the first barretter (2) by pipeline;Between first barretter (2) and the second barretter (6) Being parallel with two normal flow pipelines, described normal flow pipeline is made up of regulation valve (3), proving flowmeter (4), valve (5) and pipeline, The two ends pipeline of proving flowmeter (4) is connected to a regulation valve (3) and a valve (5);At the second barretter (6) and the 3rd current stabilization Connect between pipe (9) and have 2~10 test line;Described test line is made up of, at tong-test ammeter hand-operated valve (7), tong-test ammeter seat (8) and pipeline It is connected to a hand-operated valve (7) on the two ends pipeline of seat (8);3rd barretter (9) is connected by pipeline and has outlet(discharge) flange (10);? The end of the second barretter (6) is connected by pipeline exhaust-valve (11).
The Online fluid flow detection device of natural gas small flowmeter the most according to claim 1, it is characterised in that: the first described barretter (2), the second barretter (6) and the 3rd barretter (9) use internal diameter steel pipe between 50~200mm, be welded with at the two ends of steel pipe Steel plate.
The Online fluid flow detection device of natural gas small flowmeter the most according to claim 1, it is characterised in that: two described standards Proving flowmeter (4) on flow pipeline, a proving flowmeter (4) uses standard Roots type flowmeter;Another proving flowmeter (4) Use standard turbine meter.
CN201410733980.6A 2014-12-03 2014-12-03 Natural gas small flowmeter online real flow detection device Pending CN105890714A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106151880A (en) * 2016-08-29 2016-11-23 安徽伏斯特智能科技股份有限公司 A kind of low discharge regulation system and control method thereof
CN108007534A (en) * 2017-12-30 2018-05-08 西安长庆科技工程有限责任公司 A kind of natural gas big flow flows verification system in fact
CN108709609A (en) * 2018-07-09 2018-10-26 西安长庆科技工程有限责任公司 A kind of natural gas big flow is real to flow calibrating installation and method
CN114061710A (en) * 2021-11-13 2022-02-18 中国航发沈阳黎明航空发动机有限责任公司 Online calibration system and calibration method for engine fuel flow meter
CN116698162A (en) * 2023-06-27 2023-09-05 青岛乾程科技股份有限公司 Gas flow error checking system, testing method thereof and gas meter error checking method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106151880A (en) * 2016-08-29 2016-11-23 安徽伏斯特智能科技股份有限公司 A kind of low discharge regulation system and control method thereof
CN106151880B (en) * 2016-08-29 2019-03-26 安徽伏斯特智能科技股份有限公司 A kind of small flow control system and its adjusting method
CN108007534A (en) * 2017-12-30 2018-05-08 西安长庆科技工程有限责任公司 A kind of natural gas big flow flows verification system in fact
CN108007534B (en) * 2017-12-30 2023-12-08 西安长庆科技工程有限责任公司 Natural gas high-flow real-flow verification system
CN108709609A (en) * 2018-07-09 2018-10-26 西安长庆科技工程有限责任公司 A kind of natural gas big flow is real to flow calibrating installation and method
CN114061710A (en) * 2021-11-13 2022-02-18 中国航发沈阳黎明航空发动机有限责任公司 Online calibration system and calibration method for engine fuel flow meter
CN116698162A (en) * 2023-06-27 2023-09-05 青岛乾程科技股份有限公司 Gas flow error checking system, testing method thereof and gas meter error checking method

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Application publication date: 20160824

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