CN2462377Y - Pipeline resistance coefficient measurer - Google Patents
Pipeline resistance coefficient measurer Download PDFInfo
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- CN2462377Y CN2462377Y CN 00259077 CN00259077U CN2462377Y CN 2462377 Y CN2462377 Y CN 2462377Y CN 00259077 CN00259077 CN 00259077 CN 00259077 U CN00259077 U CN 00259077U CN 2462377 Y CN2462377 Y CN 2462377Y
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Abstract
The utility model relates to a resistance coefficient measurer of a pipeline, which is composed of a computer 1, an A/D changeover circuit 3 and a sampling device 4 which is composed of at least two sampling devices 5 and 6 of online pressure and a sampling device 7 of online by-pass flow rate and pressure, the two sampling devices 5 and 6 of online pressure and the sampling device 7 of online by-pass flow rate and pressure are totally and rigidly fixed on a valve seat of a measured pipeline 19, and the sampling device 7 of online by-pass flow rate and pressure is positioned between the two sampling devices 5 and 6 of online pressure. A sampling value of the utility model is actual and accurate because the two sampling devices 5 and 6 of online pressure and the sampling device 7 of online by-pass flow rate and pressure are totally and rigidly connected with the measured pipeline and the sealing performance of the measured pipeline is not destroyed. Because the computer is adopted to control sampling and artificial factors are relieved, measuring precision is high, and the requirements of an actual test are completely satisfied.
Description
The utility model belongs to the on-line automatic surveying instrument to the feedwater piping resistance coefficient.
Water supply network is a huge system, water is carried the delay that always has in various degree all the year round in pipe network, under physics, chemistry, galvanochemistry and microorganism acting in conjunction, form corrosion thing and sediment at inner-walls of duct, accumulate over a long period, these corrosion things and sediment are formed one deck rust deposite on inner-walls of duct, make the water supply line inwall be rough and uneven in surface, and resistance coefficient changes.And resistance coefficient is the important parameter of water supply network designing and calculating, operational management.The way of existing measuring channel resistance coefficient is with the two U type pipes that are filled with air, two U type pipes are connected with the two ends of measured tube by flexible pipe, by measuring the difference in height of U type pipe two ends water column, just can calculate the pressure reduction at these pipeline section two ends, can calculate the resistance coefficient of this segment pipe again by " Hai Sen-William " formula.But because hydraulic pressure random fluctuation in the pipe network, the artificial data that regularly read synchronously in two U type pipes are very inconvenient, be easy to produce stochastic error and personal error, make measurement inaccurate, especially U type pipe is connected by flexible pipe with measured tube, and flexible pipe has certain elasticity, is difficult to the accurately relative pressure value at the tested pipeline section of reflection two ends.Also thinner owing to flexible pipe, and contact is more, and trickle water clock will cause very big influence to measuring accuracy.
The purpose of this utility model is a kind of resistance of ducting coefficient measuring instrument of development, and this instrument can be got rid of the manual operation factor, can measure the resistance coefficient of feedwater piping on-line automatic, easily and accurately.
The utility model is made up of computing machine 1, A/D change-over circuit 3, sampler 4.Sampler 4 is made up of 5,6 and online bypass flows of at least two online pressure samples devices and pressure samples device 7.Online pressure samples device 5,6 is formed by pressure transducer 8, coupling arrangement 9.Pressure transducer 8 is fixed on the coupling arrangement 9, valve base 10 on the lower end of coupling arrangement 9 and the tested pipeline 19 is tightly connected, online bypass flow and pressure samples device 7 are made up of flow sensor 11, pressure transducer 2, coupling arrangement 12, and the valve base 14 on the lower end of coupling arrangement 12 and the tested pipeline 19 is tightly connected.The upper end of coupling arrangement 12 has a by-pass pipe 16, and flow sensor 11 is fixed in the by-pass pipe 16, and pressure transducer 2 is fixed in the by-pass pipe 27.The endpiece of by-pass pipe 16 has a valve 18, and online bypass flow and pressure samples device 7 are located at the centre of online pressure samples device 5 and 6.The output terminal of sampler 4 links to each other with the input end of A/D change-over circuit 3, and the output terminal of A/D change-over circuit 3 links to each other with the input end of computing machine 1.
The utility model is because pressure samples device 5,6 and flow all are and 19 rigid connections of tested pipeline and not destroy the sealing of tested pipeline, so sampling numerical value true and accurate with pressure samples device 7.Also, exempted human factor,, satisfied the needs of actual test fully so the measuring accuracy height of this measuring instrument can reach more than 0.1% owing to adopt the computer control sampling.And it also has convenient, the simple to operate advantage of installation and maintenance.
Fig. 1 is the utility model entire block diagram.Fig. 2 is the structural representation of online pressure samples device 5 and 6, Fig. 3 is the structural representation at linear flow rate and pressure samples device 7, Fig. 4 is the installation site synoptic diagram of sampler 5,6,7 on tested pipeline 19, and Fig. 5 is the installation site synoptic diagram of embodiment four samplers 5,6,7,24,25 on tested pipeline 19.
Embodiment one: present embodiment is made up of computing machine 1, A/D change-over circuit 3, sampler 4.Sampler 4 is made up of two online pressure samples devices 5,6 and online bypass flow and pressure samples device 7.Online pressure samples device 5,6 is formed by pressure transducer 8, coupling arrangement 9.Pressure transducer 8 was fixed on the communicating pipe 26 of coupling arrangement 9 upper ends, and the lower end of coupling arrangement 9 is disks 21, had at least two bolts hole 22 on the disk 21, and disk 21 is tightly connected by the valve base 10 on bolt 23 and the tested pipeline 19.Online bypass flow and pressure samples device 7 are made up of flow sensor 11, pressure transducer 2, coupling arrangement 12, lower end band one disk 13 of coupling arrangement 12, have at least two bolts hole 15 that are connected with valve base 14 on the disk 13, disk 13 is tightly connected by the valve base 14 on bolt 20 and the tested pipeline 19.Have a by-pass pipe 16 on the disk 13, flow sensor 11 is fixed in the by-pass pipe 16, pressure transducer 2 is fixed in the by-pass pipe 27, the endpiece of by-pass pipe 16 has a valve 18, online bypass flow and pressure samples device 7 are located at the centre of online pressure samples device 5 and 6, the output terminal of sampler 4 links to each other with the input end of A/D change-over circuit 3, and the output terminal of A/D change-over circuit 3 links to each other with the input end of computing machine 1.Sampler 4 also can be installed on the valve seat of the fire-fighting well on the tested pipeline 19, and its mounting structure is identical with content described above with measurement effect and degree easy for installation.
Embodiment two: the difference of present embodiment and embodiment one is to install an online pressure samples device 24 on the valve base 10 on the tested pipeline 19 between online pressure samples device 5 and online bypass flow and the pressure samples device 7 additional, and the The Nomenclature Composition and Structure of Complexes of online pressure samples device 24 is identical with sampler 5,6.Other composition is identical with embodiment one with annexation.
Embodiment three: the difference of present embodiment and embodiment one is to install an online pressure samples device 25 on the valve base 10 on the tested pipeline 19 between online pressure samples device 6 and online bypass flow and the pressure samples device 7 additional, and the The Nomenclature Composition and Structure of Complexes of online pressure samples device 25 is identical with sampler 5,6.Other composition is identical with embodiment one with annexation.
Embodiment four: the difference of present embodiment and embodiment one is to be packaged with online pressure samples device 24 on the valve base 10 on the tested pipeline 19 between online pressure samples device 5 and online bypass flow and the pressure samples device 7, on the valve base 10 on the tested pipeline 19 between online pressure samples device 6 and online bypass flow and the pressure samples device 7, be packaged with online pressure samples device 25, with 2 cancellations of the pressure transducer in online bypass flow and the pressure samples device 7.Other composition is identical with embodiment one with annexation.The measuring accuracy of this embodiment is the highest.
Claims (6)
1, resistance of ducting coefficient measuring instrument, it is by computing machine (1), A/D change-over circuit (3), sampler (4) is formed; It is characterized in that sampler (4) is made up of at least two online pressure samples devices (5), (6) and online bypass flow and pressure samples device (7); Online pressure samples device (5), (6) are made up of pressure transducer (8), coupling arrangement (9); Pressure transducer (8) is fixed on the coupling arrangement (9), valve base (10) on the lower end of coupling arrangement (9) and the tested pipeline (19) is tightly connected, online bypass flow and pressure samples device (7) are made up of flow sensor (11), pressure transducer (2), coupling arrangement (12), and the valve base (14) on the lower end of coupling arrangement (12) and the tested pipeline (19) is tightly connected; The upper end of coupling arrangement (12) has a by-pass pipe (16), flow sensor (11) is fixed in the by-pass pipe (16), pressure transducer (2) is fixed in the by-pass pipe (27), the endpiece of by-pass pipe (16) has a valve (18), and online bypass flow and pressure samples device (7) are located at the centre of online pressure samples device (5) and (6).
2, resistance of ducting coefficient measuring instrument according to claim 1, the lower end that it is characterized in that the coupling arrangement (9) of online pressure samples device (5), (6) is a disk (21), have at least two bolts hole (22) on the disk (21), disk (21) is tightly connected by the valve base (10) on bolt (23) and the tested pipeline (19), and pressure transducer (8) was fixed on the communicating pipe (26) of coupling arrangement (9) upper end.
3, resistance of ducting coefficient measuring instrument according to claim 1, lower end band one disk (13) that it is characterized in that the coupling arrangement (9) of online bypass flow and pressure samples device (7), have at least two bolts hole (15) that are connected with valve base (14) on the disk (13), disk (13) is tightly connected by the valve base (14) on bolt (20) and the tested pipeline (19).
4, resistance of ducting coefficient measuring instrument according to claim 1 is characterized in that installing an online pressure samples device (24) additional on the valve base (10) on the tested pipeline (19) between online pressure samples device (5) and online bypass flow and the pressure samples device (7).
5, resistance of ducting coefficient measuring instrument according to claim 1 is characterized in that installing an online pressure samples device (25) additional on the valve base (10) on the tested pipeline (19) between online pressure samples device (6) and online bypass flow and the pressure samples device (7).
6, resistance of ducting coefficient measuring instrument according to claim 1, it is characterized in that on the valve base (10) on the tested pipeline (19) between online pressure samples device (5) and online bypass flow and the pressure samples device (7), being packaged with online pressure samples device (24), on the valve base (10) on the tested pipeline (19) between online pressure samples device (6) and online bypass flow and the pressure samples device (7), be packaged with online pressure samples device (25), pressure transducer (2) cancellation in online bypass flow and the pressure samples device (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259077 CN2462377Y (en) | 2000-11-10 | 2000-11-10 | Pipeline resistance coefficient measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259077 CN2462377Y (en) | 2000-11-10 | 2000-11-10 | Pipeline resistance coefficient measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462377Y true CN2462377Y (en) | 2001-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00259077 Expired - Fee Related CN2462377Y (en) | 2000-11-10 | 2000-11-10 | Pipeline resistance coefficient measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462377Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269690A (en) * | 2011-05-03 | 2011-12-07 | 北京航空航天大学 | Method and device for testing frictional drag coefficient of inner wall of pipeline |
| CN102435548A (en) * | 2011-09-05 | 2012-05-02 | 青岛理工大学 | Water supply network pipeline resistance coefficient testing device |
| CN105486447A (en) * | 2015-12-29 | 2016-04-13 | 常熟市上海飞奥压力容器制造有限公司 | Pipeline pressure detection device |
| CN104977037B (en) * | 2014-04-14 | 2017-10-20 | 沈阳芯源微电子设备有限公司 | A kind of pipeline consistency desired result device and its application method |
| CN108254122A (en) * | 2018-01-19 | 2018-07-06 | 山东省环科院环境工程有限公司荣成分公司 | The measuring method of pipe'resistance coefficient in a kind of underground running water pipe network |
-
2000
- 2000-11-10 CN CN 00259077 patent/CN2462377Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269690A (en) * | 2011-05-03 | 2011-12-07 | 北京航空航天大学 | Method and device for testing frictional drag coefficient of inner wall of pipeline |
| CN102269690B (en) * | 2011-05-03 | 2013-05-01 | 北京航空航天大学 | Method and device for testing frictional drag coefficient of inner wall of pipeline |
| CN102435548A (en) * | 2011-09-05 | 2012-05-02 | 青岛理工大学 | Water supply network pipeline resistance coefficient testing device |
| CN104977037B (en) * | 2014-04-14 | 2017-10-20 | 沈阳芯源微电子设备有限公司 | A kind of pipeline consistency desired result device and its application method |
| CN105486447A (en) * | 2015-12-29 | 2016-04-13 | 常熟市上海飞奥压力容器制造有限公司 | Pipeline pressure detection device |
| CN108254122A (en) * | 2018-01-19 | 2018-07-06 | 山东省环科院环境工程有限公司荣成分公司 | The measuring method of pipe'resistance coefficient in a kind of underground running water pipe network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20011128 Termination date: 20091210 |