CN2288420Y - Water-meter - Google Patents
Water-meter Download PDFInfo
- Publication number
- CN2288420Y CN2288420Y CN 96232007 CN96232007U CN2288420Y CN 2288420 Y CN2288420 Y CN 2288420Y CN 96232007 CN96232007 CN 96232007 CN 96232007 U CN96232007 U CN 96232007U CN 2288420 Y CN2288420 Y CN 2288420Y
- Authority
- CN
- China
- Prior art keywords
- water
- probe
- foil gauge
- utility
- meter
- 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 - Fee Related
Links
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a water meter for measuring water consumption on large-caliber pipelines, composed of a casing, a main machine and an extension bar fixedly provided with a probe. The utility model is mainly characterized in that a waterproof protecting soft membrane, an elastic membrane and a strain foil are arranged in the probe, the probe is provided with through holes along the positive and the lateral directions of a stream line, and water pressure difference signals are converted to electric signals by the strain foil. The utility model solves the measurement of the water quantity of the large-caliber pipelines, and the water meter can be used for pipelines of various water sources.
Description
The utility model relates to a kind of Water-meter of measuring water consumption on large diameter pipeline.
All there is the water meter measurement water consumption in town and country with tap water, but existing various water meters only are applicable on the pipeline in tubule footpath, and at present a large amount of large diameter pipelines that all use when using river, river or other water source, flow measurement on these pipelines adopts rotary propeller type, vortex flow formula, Pitot tubular type flow measurement device, this class device reflects the data of discharge with the pulse differential pressure, try to achieve flow velocity by calculating then, and then inquire into the flow and the water yield, this class device uses extremely inconvenient, can only make temporary test usefulness, can not be as frequent fixed measurement.
The purpose of this utility model provides accurate measurement, can directly be fixed on a kind of Water-meter of the regular test of conduct on the pipeline.
The purpose of this utility model is achieved through the following technical solutions, a kind of Water-meter that comprises housing and form main frame by power circuit, computing circuit, voltage to frequency conversion circuit sum counter, it is characterized in that main frame is fixedly connected with the extension bar of probe through web member, probe is by shell and place waterproofing protection mantle, flexible sheet and foil gauge in the shell to constitute, and flexible sheet and foil gauge place among the protection mantle of its both sides; Probe is streamlined, in probe streamline front and side through hole is arranged; Foil gauge is connected into electric bridge and sticks on the flexible sheet of sidewise hole one side, and the lead-in wire of foil gauge connects with the computing circuit input end of main frame by the cavity of extension bar.
The utility model utilizes current to produce pressure reduction in longshore current line front and side when probe, and through foil gauge pressure difference signal is become or electric signal, thereby the measurement that has solved the large diameter pipeline water yield can be widely used on the pipeline at various water sources.
Accompanying drawing 1 is the structural representation of the utility model on pipeline;
Accompanying drawing 2 is the utility model probe sectional structure synoptic diagram;
In the accompanying drawing: the 1st, housing, the 2nd, web member, the 3rd, securing member, the 4th, pipeline, the 5th, probe, the 6th, extension bar, the 7th, forward hole, the 8th, shell, the 9th, waterproofing protection mantle, the 10th, flexible sheet, the 11st, sidewise hole, the 12nd, foil gauge.
Further specify the utility model in conjunction with the accompanying drawings and embodiments; be provided with power circuit in the housing 1; computing circuit; the main frame that voltage to frequency conversion circuit sum counter constitutes; main frame is fixed on the pipeline 4 through connecting piece 2 and securing member 3; connecting piece 2 joins with extension bar 6; extension bar 6 can be fixed 1 or several probes 5 according to caliber; probe 5 is by shell 8 and the waterproofing protection mantle 9 that places in the shell; flexible sheet 10 and foil gauge 12 constitute; streamline front on the shell 8 has forward hole 7; have sidewise hole 11 on the side; foil gauge 12 is connected into electric bridge and sticks on the waterproofing protection mantle 9 with sidewise hole one side, and the lead-in wire on the foil gauge 12 connects with the computing circuit input end of main frame through the cavity of extension bar 6.In pipeline, there are current out-of-date, streamline front, probe upper edge and side produce a pressure difference, and meet following relationship formula V=2g Δ p, in the formula: the V-point velocity, g-acceleration of gravity, Δ p-pressure difference, pressure difference is converted into electric weight through foil gauge, the host circuit computing can be tried to achieve mean flow rate, and (extraction of square root asks average through computing, multiplying factor) can obtain being proportional to the voltage signal of flow, again its voltage signal is become the frequency pulse signal by the voltage to frequency conversion circuit, go out pulsed quantity with the counter meter and get final product, reserve at the caliberating device subscript and can directly show accumulated water volume.
Claims (3)
1, a kind of Water-meter that comprises housing and form main frame by power circuit, computing circuit, voltage to frequency conversion circuit sum counter; it is characterized in that main frame is fixedly connected with the extension bar of probe through web member; probe is by shell and place waterproofing protection mantle, flexible sheet and foil gauge in the shell to constitute, and flexible sheet and foil gauge place among the protection mantle of its both sides.
2, Water-meter according to claim 1 is characterized in that probe is streamlined, in probe streamline front and side through hole is arranged.
3, Water-meter according to claim 1 is characterized in that foil gauge is connected into electric bridge and sticks on the flexible sheet of sidewise hole one side.The lead-in wire of foil gauge connects with the computing circuit input end of main frame by the cavity of extension bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232007 CN2288420Y (en) | 1996-05-31 | 1996-05-31 | Water-meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232007 CN2288420Y (en) | 1996-05-31 | 1996-05-31 | Water-meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2288420Y true CN2288420Y (en) | 1998-08-19 |
Family
ID=33909046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232007 Expired - Fee Related CN2288420Y (en) | 1996-05-31 | 1996-05-31 | Water-meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2288420Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424974A (en) * | 2015-12-10 | 2016-03-23 | 无锡拓能自动化科技有限公司 | Air conditioner pipeline flow velocity monitor |
| CN110542373A (en) * | 2019-09-25 | 2019-12-06 | 苏州长光华医生物医学工程有限公司 | Utilize foil gage deflection to detect device of wasing stifled needle of separation waste liquid needle |
-
1996
- 1996-05-31 CN CN 96232007 patent/CN2288420Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424974A (en) * | 2015-12-10 | 2016-03-23 | 无锡拓能自动化科技有限公司 | Air conditioner pipeline flow velocity monitor |
| CN110542373A (en) * | 2019-09-25 | 2019-12-06 | 苏州长光华医生物医学工程有限公司 | Utilize foil gage deflection to detect device of wasing stifled needle of separation waste liquid needle |
| WO2021056629A1 (en) * | 2019-09-25 | 2021-04-01 | 苏州长光华医生物医学工程有限公司 | Device for detecting blockage of cleaning and separating waste liquid needle by using amount of deformation of strain gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |