CN206387479U - It is a kind of to reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy - Google Patents
It is a kind of to reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy Download PDFInfo
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- CN206387479U CN206387479U CN201720091327.3U CN201720091327U CN206387479U CN 206387479 U CN206387479 U CN 206387479U CN 201720091327 U CN201720091327 U CN 201720091327U CN 206387479 U CN206387479 U CN 206387479U
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Abstract
The utility model is related to a kind of tube capacity that can reduce and improves the Natural gas flow meter verification apparatus for examining and determine the degree of accuracy, including the inlet flange being sequentially connected, the first header, a plurality of standard pipeline, the second header, valve, the 3rd header, a plurality of pipeline to be measured, the 4th header and outlet(discharge) flange, the device employs subsection setup in the use of header, used with two small-bore header parallel combinations and replace a heavy caliber header, under the installation requirement for meeting different branch, the tube capacity of header is reduced, the degree of accuracy of verification result is improved.
Description
Technical field
The utility model is related to natural gas flow measuring field, and in particular to one kind can reduce tube capacity and improve calibrating accurately
The Natural gas flow meter verification apparatus of degree.
Background technology
A large amount of with natural gas use, and the accuracy of gas metering is for ensureing natural gas science, fair measurement, dimension
Have great importance in terms of the rights and interests for protecting production-supply-marketing tripartite.The metering method of current China's natural gas is mainly stereometer
Amount, the measuring equipment used mainly has ultrasonic flowmeter, standard orifice flow meter and turbine flowmeter.Which kind of no matter counted using
Equipment is measured, according to《Measurement Law》And the requirement of meter proof code, it is necessary to periodically in gas metering flowmeter it is accurate
Degree is examined and determine and calibrated.In existing calibrating, often proving flowmeter is cascaded with detected flowmeter, made
Flow flows through proving flowmeter and detected flowmeter simultaneously, and the precision of measured stream gauge is weighed with the metering of proving flowmeter
Grade.The flow for flowing through proving flowmeter and detected flowmeter in theory should be identical, but actually examine and determine
Due to the influence of the header tube capacity between proving flowmeter and detected flowmeter in journey, there is certain error in verification result, then
It is made up of plus existing standard set-up a plurality of standard branch and detected branch road, to meet the connection request of all branch roads,
Header is selected generally according to the larger branch road of bore, and this results in the tube capacity increase of header, and larger shadow is caused to verification result
Ring.Therefore, how can meet the demand of all branch roads can reduce again header tube capacity be those skilled in the art be badly in need of solution
The problem of.
Utility model content
In view of this, the utility model provides a kind of tube capacity that reduces and improves the natural gas flowmeter calibrating for examining and determine the degree of accuracy
Device, the device employs subsection setup in the use of header, is used with two small-bore header parallel combinations and replaces one
Heavy caliber header, under the installation requirement for meeting different branch, reduces the tube capacity of header, improves the accurate of verification result
Degree.
The utility model solves the technical scheme that its technical problem used：
It is a kind of to reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy, for detecting natural gas flowmeter
Accuracy class, the device includes inlet flange, the first header, a plurality of standard pipeline, the second header, valve, the 3rd header, many
Bar pipeline to be measured, the 4th header and outlet(discharge) flange, the inlet flange are connected by pipeline with the first header, a plurality of standard
In parallel between pipeline, and one end of every standard pipeline is connected on the first header, the other end is connected to the second header or the
On three headers, connected between second header and the 3rd header by valve, it is in parallel between a plurality of pipeline to be measured, and often
One end of article pipeline to be measured is connected on the second header or the 3rd header, and the other end is connected on the 4th header, and the described 4th
Header is connected by pipeline with outlet(discharge) flange.
Further, every standard pipeline includes the first electrical ball valve and proving flowmeter, first electric ball
Valve is connected by pipeline with proving flowmeter.
Further, described every pipeline to be measured includes the second electrical ball valve and flowmeter to be measured, second electric ball
Valve is connected by pipeline with flowmeter to be measured.
Further, first header and the 4th header are diameter 600mm steel pipe, and second header is diameter
400mm steel pipe, the 3rd header is diameter 200mm steel pipe.
Further, the normal flow is calculated as appointing in turbine flowmeter, ultrasonic flowmeter and standard orifice flow meter
Meaning is a kind of.
Further, flow control valve is also associated with the outlet(discharge) flange, for adjusting the natural gas flow in pipeline
Amount.
The beneficial effects of the utility model are：
A kind of reduction tube capacity that the utility model is provided improve the Natural gas flow meter verification apparatus of the calibrating degree of accuracy with it is existing
Some calibrating installations are compared, and the header for connecting standard pipeline and pipeline to be measured is carried out into subsection setup, with two small-bore remittances
Pipe is applied in combination instead of a heavy caliber header by valve connection, that is, meets the installation requirement of different bore standard pipelines,
All calibrating range of flows are covered, the tube capacity of header is reduced again, influence of the header tube capacity to verification result is then reduced, carries
The high degree of accuracy of calibrating structure.
Brief description of the drawings
Fig. 1 is that a kind of Natural gas flow meter verification apparatus structure for reducing the tube capacity raising calibrating degree of accuracy of the utility model is shown
It is intended to.
Shown in figure：1- inlet flanges, the headers of 2- first, 3- standard pipelines, the electrical ball valves of 3.1- first, 3.2- normal streams
Gauge, the headers of 4- second, 5- valves, the headers of 6- the 3rd, 7- pipelines to be measured, the electrically operated valves of 7.1- second, 7.2- flowmeters to be measured,
The headers of 8- the 4th, 9- outlet(discharge) flanges, 10- flow control valves.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with the accompanying drawings and specifically
Embodiment is described in further detail to the utility model, it will be appreciated that specific embodiment described herein is only used for explaining
The utility model, is not used to limit the utility model.
A kind of reduction tube capacity that the utility model is provided improves the knot of the Natural gas flow meter verification apparatus of the calibrating degree of accuracy
Structure is as shown in figure 1, specifically included inlet flange 1, the first header 2, a plurality of standard pipeline 3, the second header 4, valve the 5, the 3rd
Header 6, a plurality of pipeline 7 to be measured, the 4th header 8 and outlet(discharge) flange 9, the inlet flange 1 are connected by pipeline with the first header 2
Connect, parallel connection between a plurality of standard pipeline 3, and one end of every standard pipeline 3 is connected on the first header 2, the other end connects
It is connected on the second header 4 or the 3rd header 6, is connected between the header 6 of the second header 4 and the 3rd by valve 5, it is described many
It is in parallel between bar pipeline 7 to be measured, and one end of every pipeline 7 to be measured is connected on the second header 4 or the 3rd header 6, it is another
End is connected on the 4th header 8, and the 4th header 8 is connected by pipeline with outlet(discharge) flange 9.
Specifically, every standard pipeline 3 includes the first electrical ball valve 3.1 and proving flowmeter 3.2, first electricity
Dynamic ball valve 3.1 is connected by pipeline with proving flowmeter 3.2.
Specifically, described every pipeline 7 to be measured includes the second electrical ball valve 7.1 and flowmeter to be measured 7.2, second electricity
Dynamic ball valve 7.1 is connected by pipeline with flowmeter 7.2 to be measured.
First header 2 described in the present embodiment and the 4th header 8 select diameter 600mm steel pipe, and second header 4 is selected
With diameter 400mm steel pipe, steel pipe of the 3rd header 6 from diameter 200mm.
Proving flowmeter 3.2 described in the present embodiment selects turbine flowmeter.
Standard pipeline described in the present embodiment 3 is arranged as 6, and the pipeline to be measured 7 being connected on the second header 4 is arranged as 3
Bar, the pipeline to be measured 7 being connected on the 4th header 6 is arranged as 2 articles.
Flow control valve 10 is also associated with the outlet(discharge) flange 9 in the present embodiment, for adjusting natural gas in pipeline
Flow.
Such scheme it is critical that the header subsection setup of standard pipeline 3 and pipeline to be measured 7 will be connected, that is, set
Into the combination of the second header 4 and the 3rd header 6, second header 4 is connected by valve 5 with the 3rd header 6, according to actually making
The need for, the switch of specifically chosen valve 5.Drawn by practical operation, a diameter of 400mm of the second header 4, the 3rd header
Tube capacity during 6 a diameter of 200mm is minimum, and the influence for treating flow measurement gauge 7.2 is minimum, can improve 0.05% degree of accuracy.
The method examined and determine using the present embodiment device natural gas flowmeter is：
Using the hydrodynamics principle of continuity, natural gas enters the first header 2 by inlet flange 1, then from the first header 2 to
Each standard pipeline 3 is shunted, then flows to pipeline 7 to be measured by the second header 4 or the 3rd header 6, last a plurality of pipeline 7 to be measured
In natural gas be aggregated into the 4th header 8 and flowed out by outlet(discharge) flange 9, will be natural by the adjustment effect of flow control valve 10
Then throughput regulation opens proving flowmeter 3.2 simultaneously and flowmeter to be measured 7.2 is distinguished to the flow point of vertification regulation requirement
Record flow value is simultaneously compared, and judges the degree of accuracy of flowmeter 7.2 to be measured.In the present embodiment, in every standard pipeline 7 all
Carry out controlling switch equipped with the first electrical ball valve 3.1, standard pipeline 3 can simultaneously be opened with a plurality of pipeline；In every pipeline 7 to be measured all
Equipped with the second electrical ball valve 7.1, the switch of every pipeline to be measured can be controlled.Detection when, can only choose wherein one it is to be measured
Pipeline carries out the calibrating of flowmeter 7.2 to be measured.
The part not illustrated in specification is prior art or common knowledge.It is new that the present embodiment is merely to illustrate the practicality
Type, rather than limit scope of the present utility model, equivalent replacement that those skilled in the art are done for the utility model etc.
Modification is deemed to fall within the utility model right claim institute protection domain.
Claims (6)
1. a kind of reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy, for detecting natural gas flowmeter
Accuracy class, it is characterised in that：The device includes inlet flange (1), the first header (2), a plurality of standard pipeline (3), the second remittance
Manage (4), valve (5), the 3rd header (6), a plurality of pipeline (7) to be measured, the 4th header (8) and outlet(discharge) flange (9), the entrance method
Blue (1) is connected by pipeline with the first header (2), in parallel between a plurality of standard pipeline (3), and every standard pipeline (3)
One end be connected on the first header (2), the other end is connected on the second header (4) or the 3rd header (6), it is described second converge
Connected between pipe (4) and the 3rd header (6) by valve (5), parallel connection between a plurality of pipeline (7) to be measured, and every to be measured
One end of pipeline (7) is connected on the second header (4) or the 3rd header (6), and the other end is connected on the 4th header (8), institute
The 4th header (8) is stated to be connected with outlet(discharge) flange (9) by pipeline.
2. a kind of tube capacity that reduces according to claim 1 improves the Natural gas flow meter verification apparatus for examining and determine the degree of accuracy, its
It is characterised by：Every standard pipeline (3) includes the first electrical ball valve (3.1) and proving flowmeter (3.2), first electricity
Dynamic ball valve (3.1) is connected by pipeline with proving flowmeter (3.2).
3. a kind of tube capacity that reduces according to claim 2 improves the Natural gas flow meter verification apparatus for examining and determine the degree of accuracy, its
It is characterised by：Every pipeline (7) to be measured includes the second electrical ball valve (7.1) and flowmeter to be measured (7.2), second electricity
Dynamic ball valve (7.1) is connected by pipeline with flowmeter to be measured (7.2).
4. a kind of tube capacity that reduces according to claim 3 improves the Natural gas flow meter verification apparatus for examining and determine the degree of accuracy, its
It is characterised by：First header (2) and the steel pipe that the 4th header (8) is diameter 600mm, second header (4) is diameter
400mm steel pipe, the 3rd header (6) is diameter 200mm steel pipe.
5. a kind of tube capacity that reduces according to claim 4 improves the Natural gas flow meter verification apparatus for examining and determine the degree of accuracy, its
It is characterised by：The proving flowmeter (3.2) is any one in turbine flowmeter, ultrasonic flowmeter and standard orifice flow meter
Kind.
6. a kind of tube capacity that reduces according to claim 5 improves the Natural gas flow meter verification apparatus for examining and determine the degree of accuracy, its
It is characterised by：Flow control valve (10) is also associated with the outlet(discharge) flange (9) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091327.3U CN206387479U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091327.3U CN206387479U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy |
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| CN206387479U true CN206387479U (en) | 2017-08-08 |
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| CN201720091327.3U Active CN206387479U (en) | 2017-01-24 | 2017-01-24 | It is a kind of to reduce the Natural gas flow meter verification apparatus that tube capacity improves the calibrating degree of accuracy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195445A (en) * | 2017-12-30 | 2018-06-22 | 西安长庆科技工程有限责任公司 | Stream examines and determine secondary standard device and method to a kind of natural gas big flow 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 |
| CN110864770A (en) * | 2019-11-20 | 2020-03-06 | 威海坤科流量仪表股份有限公司 | Gas waist wheel starting flow testing equipment and testing method thereof |
-
2017
- 2017-01-24 CN CN201720091327.3U patent/CN206387479U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195445A (en) * | 2017-12-30 | 2018-06-22 | 西安长庆科技工程有限责任公司 | Stream examines and determine secondary standard device and method to a kind of natural gas big flow 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 |
| CN110864770A (en) * | 2019-11-20 | 2020-03-06 | 威海坤科流量仪表股份有限公司 | Gas waist wheel starting flow testing equipment and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200818 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: China Petroleum & Chemical Corp. Address before: 430070 No. 126 Optics Valley Avenue, East Lake New Technology Development Zone, Wuhan, Hubei Patentee before: METERING RESEARCH CENTER, NATURAL GAS BRANCH OF CHINA PETROLEUM AND CHEMICAL Corp. |
|
| TR01 | Transfer of patent right |