CN103234687B - Method for measuring parameters of gas drainage pipeline - Google Patents
Method for measuring parameters of gas drainage pipeline Download PDFInfo
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- CN103234687B CN103234687B CN201310123221.3A CN201310123221A CN103234687B CN 103234687 B CN103234687 B CN 103234687B CN 201310123221 A CN201310123221 A CN 201310123221A CN 103234687 B CN103234687 B CN 103234687B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 27
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- 230000003321 amplification Effects 0.000 claims abstract description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 15
- 230000011664 signaling Effects 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 10
- 238000000691 measurement method Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
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Abstract
The parameter measuring method of the gas drainage pipeline comprises a parameter measuring instrument, wherein the parameter measuring instrument comprises a measuring device and a pitot tube connected to a fluid signal input port of the measuring device, and the pitot tube comprises a protective tube, a hollow L-shaped pressure guide tube I and a hollow L-shaped pressure guide tube II; the specific measurement steps are as follows: 1) vertically inserting the pressure guide pipe I and the pressure guide pipe II into a pipeline to be detected, and enabling an inlet of the pressure guide pipe I or the pressure guide pipe II to be opposite to the flow direction of fluid in the pipeline; 2) reading physical signals led in by the pressure guide pipe I and the pressure guide pipe II, converting the physical signals into analog electric signals, and converting the analog electric signals into digital signals after amplification and filtering; 3) and leading the digital signal into an upper computer to display the parameters of the pipeline to be detected. The invention can avoid signal fluctuation and interference caused by overlong physical signal transmission channel and jitter, improve the stability of measured data, reduce the lower limit of flow measurement, reduce the influence of human factors, realize the on-line installation and use without stopping flow, and has convenient installation and simple use.
Description
Technical field
The present invention relates to a kind of pipe survey methods, the method for particularly a kind of gas tube parameter measurement.
Background technology
Portable pipe parameter measurement instrument measuring flow principle mostly in the market is differential pressure measurement principle, pressure guiding pipe is inserted in pipe under test, lead to the fluid in pipe under test by long impulse flexible pipe again, introduce in back-end host, be converted to electric signal to process again, so easy introducing interference, as long impulse flexible pipe shake causes differential pressure measurement unstable, temperature signal is interfered.And all do not have integrated temperature to pop one's head in, during measuring tempeature, need temperature measurement equipment to insert separately to be treated in pipeline.
Summary of the invention
Object of the present invention is just to provide a kind of gas drainage pipeline measurement method of parameters, it by the short range transmission of connecting pipe, is converted to electric signal immediately after obtaining the physical signalling in pipeline, preserve, avoid the various unfavorable interference introduced because of long impulse flexible pipe transmitting physical signal.
The object of the invention is by such technical scheme realize, it includes parameter measurement instrument, described parameter measurement instrument includes measurement mechanism and is connected to the pitot tube of measurement mechanism fluid signal input port, pitot tube includes pillar, hollow L shape connecting pipe I and hollow L shape connecting pipe II, one end of connecting pipe I and connecting pipe II is introducing port, the other end of connecting pipe I and connecting pipe II is fluid signal delivery outlet, the introducing port of connecting pipe I and the introducing port of connecting pipe II towards opposing, connecting pipe I is connected with the fluid signal input port of measurement mechanism with the fluid signal delivery outlet of connecting pipe II, pillar is wrapped in the outer wall of connecting pipe I and connecting pipe II, the introducing port of connecting pipe I and the introducing port of connecting pipe II are positioned at outside pillar, measurement mechanism includes differential pressure pickup, absolute pressure transducer, modulate circuit and A/D modular converter, connecting pipe I is connected with two input ports of differential pressure pickup respectively with the fluid signal delivery outlet of connecting pipe II, being communicated with of absolute pressure transducer and connecting pipe I or connecting pipe II, the signal that differential pressure pickup and absolute pressure transducer collect is sent to modulate circuit, carry out amplifying, filtering process, then be converted to digital signal by A/D modular converter,
Concrete measuring process is as follows:
1) by connecting pipe I insertion vertical with connecting pipe II pipe under test, the introducing port of connecting pipe I or connecting pipe II is just flowed to fluids within pipes;
2) read the physical signalling of connecting pipe I and connecting pipe II importing, be converted to pressure reduction electric signal and absolute pressure electric signal, after amplification, filtering process, be converted to digital signal again store;
3) digital signal is imported in host computer, demonstrated the parameter of tested pipeline by host computer.
Further, described parameter measurement instrument also includes the temp probe of built-in temperature sensor, temp probe is fixed on pillar, in step 1), temp probe, connecting pipe I insert in pipe under test together with connecting pipe II, in step 2) in the data that collect of temp probe be converted to digital signal again through putting, after filtering process and store, in step 3), temperature digital signal imports in host computer, is shown by host computer.
Further, described pillar, connecting pipe I and connecting pipe II are hard pipeline.
Owing to have employed technique scheme, the present invention has following advantage:
After the present invention has collected physical signalling, by connecting pipe I and connecting pipe II, pressure physical signalling is sent to the measurement mechanism of near-end, is converted to electric signal.Relative to traditional measuring system physical signalling all being introduced remote host, because connecting pipe and measurement mechanism are set together, the present invention can avoid because of physical signalling transmission channel long and shake and cause signal fluctuation, be disturbed, measurement data stability can be improved, reduce flow measurement lower limit, reduce human factor impact, and can realize not arrheaing online installation and using, easy for installation, use simple.Meanwhile, be also integrated with temp probe in the end of pillar, the surveying work of temperature can also be completed simultaneously while measured pressure signal.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by instructions below and claims and be obtained.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows.
Fig. 1 is the structural representation of parameter measurement instrument of the present invention;
Fig. 2 is the enlarged diagram of local A in Fig. 1.
In figure: 1. connecting pipe I; 2. connecting pipe II; 3. pillar; 4. temp probe; 5. shell; 6. through hole; 7. waterproof plug.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Gas drainage pipeline measurement method of parameters, include parameter measurement instrument, parameter measurement instrument includes measurement mechanism and is connected to the pitot tube of measurement mechanism fluid signal input port, pitot tube includes pillar 3, hollow L shape connecting pipe I 1 and hollow L shape connecting pipe II 2, one end of connecting pipe I 1 and connecting pipe II 2 is introducing port, the other end of connecting pipe I 1 and connecting pipe II 2 is fluid signal delivery outlet, the introducing port of connecting pipe I 1 and the introducing port of connecting pipe II 2 towards opposing, connecting pipe I 1 is connected with the fluid signal input port of measurement mechanism with the fluid signal delivery outlet of connecting pipe II 2, pillar 3 is wrapped in the outer wall of connecting pipe I 1 and connecting pipe II 2, the introducing port of connecting pipe I 1 and the introducing port of connecting pipe II 2 are positioned at outside pillar 3.
The temp probe 4 of temperature sensor established by measuring instrument in also including, temp probe 4 is fixed on pillar 3, and temp probe 4 is connected with measurement mechanism by signal wire, and signal wire is positioned at pillar 3.
Connecting pipe I 1, connecting pipe II 2 and pillar 3 are hard conduit.
Measurement mechanism includes differential pressure pickup, absolute pressure transducer, modulate circuit and A/D modular converter, connecting pipe I 1 is connected with two input ports of differential pressure pickup respectively with the fluid signal delivery outlet of connecting pipe II 2, being communicated with of absolute pressure transducer and connecting pipe I 1 or connecting pipe II 2, the data that differential pressure pickup, absolute pressure transducer and temp probe 4 collects are sent to modulate circuit, carry out amplifying, filtering process, then be converted to digital signal by A/D modular converter.
Measurement mechanism also includes output circuit, and the digital signal after process is sent to host computer by output circuit.
Measurement mechanism can be arranged in can 5, the housing of can 5 is provided with the through hole 6 for the order wire through connection output circuit and host computer, can 5 can also be provided with the waterproof plug 7 corresponding with through hole 6.
Concrete measuring process is:
1) by connecting pipe I insertion vertical with connecting pipe II pipe under test, the introducing port of connecting pipe I or connecting pipe II is just flowed to fluids within pipes;
2) read the physical signalling of connecting pipe I and connecting pipe II importing, be converted to pressure reduction electric signal and absolute pressure electric signal, after amplification, filtering process, be converted to digital signal again store;
3) digital signal is imported in host computer, demonstrated the parameter of tested pipeline by host computer.
When the present invention uses, by connecting pipe I 1, connecting pipe II 2 and temp probe 4 insert in pipe under test, wherein one of them export mouth of connecting pipe I 1 or connecting pipe II 2 is just to the flow direction of fluid in pipeline, another export mouth is back to the flow direction of fluid in pipeline, the physical signalling of fluid enters in differential pressure pickup by connecting pipe I 1 and connecting pipe II 2, differential pressure pickup detects the pressure differential of the fluid of connecting pipe I and connecting pipe II inflow, the fluid that connecting pipe I 1 or connecting pipe II 2 import flows in absolute pressure transducer, absolute pressure transducer detects the absolute pressure value of connecting pipe I 1 or connecting pipe II 2, simultaneous temperature is popped one's head in the fluid temperature (F.T.) in 4 testing pipes, connecting pipe I 1, the analog electrical signal that connecting pipe II 2 and temp probe 4 collect carries out amplification filtering process by modulate circuit, digital signal is converted to again by A/D modular converter, the digital signal collected is sent to host computer by output circuit, host computer processes signal, and show test results.
Because connecting pipe and measurement mechanism are set together, after having collected physical signalling, by connecting pipe I and connecting pipe II, pressure physical signalling is sent to the measurement mechanism of near-end, is converted to electric signal, the transmission distance of physical signalling is the length of connecting pipe.Relative to traditional measuring system physical signalling all being introduced remote host, the present invention can avoid because of physical signalling transmission channel long and shake and cause signal fluctuation, be disturbed, measurement data stability can be improved, reduce flow measurement lower limit, reduce human factor impact, and can realize not arrheaing online installation and use, easy for installation, use simple.Meanwhile, be also integrated with temp probe in the end of pillar, the surveying work of temperature can also be completed simultaneously while measured pressure signal.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (2)
1. gas drainage pipeline measurement method of parameters, it is characterized in that: include parameter measurement instrument, described parameter measurement instrument includes measurement mechanism and is connected to the pitot tube of measurement mechanism fluid signal input port, pitot tube includes pillar, hollow L shape connecting pipe I and hollow L shape connecting pipe II, one end of connecting pipe I and connecting pipe II is introducing port, the other end of connecting pipe I and connecting pipe II is fluid signal delivery outlet, the introducing port of connecting pipe I and the introducing port of connecting pipe II towards opposing, connecting pipe I is connected with the fluid signal input port of measurement mechanism with the fluid signal delivery outlet of connecting pipe II, pillar is wrapped in the outer wall of connecting pipe I and connecting pipe II, the introducing port of connecting pipe I and the introducing port of connecting pipe II are positioned at outside pillar, measurement mechanism includes differential pressure pickup, absolute pressure transducer, modulate circuit and A/D modular converter, connecting pipe I is connected with two input ports of differential pressure pickup respectively with the fluid signal delivery outlet of connecting pipe II, being communicated with of absolute pressure transducer and connecting pipe I or connecting pipe II, the data that differential pressure pickup and absolute pressure transducer collect are sent to modulate circuit, carry out amplifying, filtering process, then be converted to digital signal by A/D modular converter,
Concrete measuring process is as follows:
1) by connecting pipe I insertion vertical with connecting pipe II pipe under test, the introducing port of connecting pipe I or connecting pipe II is just flowed to fluids within pipes;
2) read the physical signalling of connecting pipe I and connecting pipe II importing, be converted to pressure reduction electric signal and absolute pressure electric signal, after amplification, filtering process, be converted to digital signal again store;
3) digital signal is imported in host computer, demonstrated the parameter of tested pipeline by host computer;
Wherein parameter measurement instrument also includes the temp probe of built-in temperature sensor, temp probe is fixed on pillar, in step 1) in temp probe, connecting pipe I insert together with connecting pipe II in pipe under test, in step 2) in the data that collect of temp probe be converted to digital signal again through amplifying, after filtering process and store, in step 3) in temperature digital signal import in host computer, shown by host computer.
2. gas drainage pipeline measurement method of parameters as claimed in claim 1, is characterized in that: described pillar, connecting pipe I and connecting pipe II are hard pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123221.3A CN103234687B (en) | 2013-04-10 | 2013-04-10 | Method for measuring parameters of gas drainage pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310123221.3A CN103234687B (en) | 2013-04-10 | 2013-04-10 | Method for measuring parameters of gas drainage pipeline |
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| Publication Number | Publication Date |
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| CN103234687A CN103234687A (en) | 2013-08-07 |
| CN103234687B true CN103234687B (en) | 2015-06-03 |
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| CN201310123221.3A Active CN103234687B (en) | 2013-04-10 | 2013-04-10 | Method for measuring parameters of gas drainage pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106640182B (en) * | 2016-12-30 | 2018-07-20 | 中国矿业大学(北京) | A kind of measurement drilling gas micrometeor method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836305A (en) * | 1985-05-06 | 1989-06-06 | Pangaea Enterprises, Inc. | Drill pipes and casings utilizing multi-conduit tubulars |
| CN2935096Y (en) * | 2006-05-19 | 2007-08-15 | 李易 | Integrated differential pressure flowmeter |
| CN201318957Y (en) * | 2008-10-21 | 2009-09-30 | 铁岭铁光仪器仪表有限责任公司 | Probe-type flow sensor and intelligent probe-type flowmeter comprising same |
| GB0910978D0 (en) * | 2009-06-25 | 2009-08-05 | Wellmack Resources Ltd | Method and apparatus for monitoring fluids |
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