CN103557896A - Scraper type electromagnetic flowmeter and mounting method - Google Patents
Scraper type electromagnetic flowmeter and mounting method Download PDFInfo
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- CN103557896A CN103557896A CN201310570187.4A CN201310570187A CN103557896A CN 103557896 A CN103557896 A CN 103557896A CN 201310570187 A CN201310570187 A CN 201310570187A CN 103557896 A CN103557896 A CN 103557896A
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- scraper
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Abstract
The invention discloses a scraper type electromagnetic flowmeter and a mounting method. When fluid such as seriflux and sewage, which can easily generate dirt and attachment, is measured, the surfaces of the electrodes are always covered with dirt, so that swinging and drifting occur to the flowmeter output, and the measurement can not be performed when the swinging and drifting are serious, as a result, the electrodes are required to be cleaned. The existing scraper type electromagnetic flowmeter is complicated in structure, weak in anti-interference capacity, inaccurate in measurement, complicated in mounting and high in manufacturing cost. When fluid such as seriflux and sewage, which can easily generate dirt and attachment, is measured, the surfaces of the electrodes are always covered with dirt, so that swinging and drifting occur to the flowmeter output, and the measurement can not be performed when the swinging and drifting are serious. The scraper type electromagnetic flowmeter, disclosed by the invention, comprises a casing (1), wherein an electrode (2) is mounted in the casing (1); the electrode (2) is connected with an iron core (3); the iron core (3) is connected with a field coil (4); the field coil (4) is connected with a measurement tube (5); the measurement tube (5) is connected with a lining (6). The scraper type electromagnetic flowmeter, disclosed by the invention, is used for measuring liquid flow.
Description
technical field:
the present invention relates to a kind of doctor-blade type electromagnetic flowmeter and installation method.
background technology:
measuring the fluid that dirt easily occurs and produce attachment, as slurries, during the media such as sewage, electrode surface often has the attached lid of dirt, make instrument output occur to swing and drift, when serious, cannot measure, now, just to clean electrode, this instrument adopts mechanical removal method, with stainless steel, make one with the scraper of thin axle, by coreless armature, scraper is drawn, between thin axle and coreless armature, adopt mechanical seal to prevent medium outflow, so formed mechanical curettage device, when opening table body electrode enclosing cover, while rotating thin axle, scraper is close to electrode tip Plane Rotation, scrape dirt, this scraper can be manual, also can drive thin axle automatic scraping to remove with motor, this instrument adopts manual method, with the electromagnetism bore of scraper electrode from DN80, electrode adopts 316L stainless steel.But the doctor-blade type electromagnetic flowmeter complex structure using at present, a little less than antijamming capability, measures out of true, and complexity is installed, cost of manufacture is high.
summary of the invention:
the object of this invention is to provide a kind of doctor-blade type electromagnetic flowmeter and installation method.
above-mentioned object realizes by following technical scheme:
, its composition comprises: housing, in described housing, electrode is installed, and described electrode is connected with iron core, and described iron core is connected with magnetizing coil, and described magnetizing coil is connected with measuring tube, and described measuring tube is connected with lining.
described doctor-blade type electromagnetic flowmeter, described electrode is detachable blade electrode mechanism, detachable blade electrode mechanism inside is installed with scraping cutter bar, described is fixed by nut, packing ring, between described packing ring and described measuring tube, be lined with insulating washer, described scraping cutter bar is connected with scraper, spring, backstop respectively, and described scraper, described spring, described backstop seal with O RunddichtringO, and described scraper is mounted on electrode end surface.
described doctor-blade type electromagnetic flowmeter, described measuring tube two ends are connected with tested pipeline.
a using method for Split type electric magnetic flowmeter, the method comprises the steps:
(1) sensor can level or at right angle setting, but should guarantee to avoid sediment and the impact of bubble on potential electrode, electrode axis to maintenance level for well.During at right angle setting, fluid should flow from bottom to top.Flowmeter can not be arranged on the extreme higher position of pipeline, and bubble is easily gathered in this position;
(2) guarantee that flowmeter, when measuring, is full of detected fluid in pipeline, can not occur non-full pipe state.As pipeline exists non-full pipe or outlet, have emptying state, flowmeter should be arranged on a U trap;
(3) for avoiding negative pressure, sensor can not be arranged on the water inlet of pump, and should be arranged on the water delivering orifice of pump;
(4) doctor-blade type electromagnetic flowmeter is when signal electrode needs care and maintenance, only need open capping, use hand turning handle, the rotation of drive scraping cutter bar, make the scraper of being close to signal electrode scrape off the lip-deep dirt of signal electrode, after cleaning, the direction of scraper is threaded to the direction mobile with fluid (having Directional Sign on knob).
beneficial effect:
1. the corrosion-resistant all steel material of the present invention; Simple in structure, firm, long service life; Measure reliably, antijamming capability is strong; Volume is little, lightweight, easy for installation, maintenance is little.
2. measurement range of the present invention is large, measures the impact that not changed by temperature, density, pressure, viscosity, conductance etc.; The pressure loss is zero; Can in the situation that continuing to flow, install, dismantle, for user's maintenance has brought convenience;
3. manufacturing cost of the present invention and erected cost are low, are particularly suitable for large central diameter pipeline flow and measure.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present invention.
accompanying drawing 2 is electrode structure schematic diagram of the present invention.
embodiment:
embodiment 1:
, its composition comprises: housing 1, is provided with electrode 2 in described housing, described electrode is connected with iron core 3, described iron core is connected with magnetizing coil 4, and described magnetizing coil is connected with measuring tube 5, and described measuring tube is connected with lining 6.
embodiment 2:
according to the doctor-blade type electromagnetic flowmeter described in embodiment 1, described electrode is detachable blade electrode mechanism, inside is installed with scraping cutter bar 7, by nut 8, packing ring 9, fixed, between described packing ring and described measuring tube, be lined with insulating washer 10, described scraping cutter bar is connected respectively with scraper 11, spring 12, backstop 13, and seals with O RunddichtringO 14, and described scraper is mounted on electrode end surface.
embodiment 3:
according to the doctor-blade type electromagnetic flowmeter described in embodiment 1 or 2, described measuring tube two ends are connected with tested pipeline.
embodiment 4:
a using method for Split type electric magnetic flowmeter, the method comprises the steps:
(1) sensor can level or at right angle setting, but should guarantee to avoid sediment and the impact of bubble on potential electrode, electrode axis to maintenance level for well.During at right angle setting, fluid should flow from bottom to top.Flowmeter can not be arranged on the extreme higher position of pipeline, and bubble is easily gathered in this position;
(2) guarantee that flowmeter, when measuring, is full of detected fluid in pipeline, can not occur non-full pipe state.As pipeline exists non-full pipe or outlet, have emptying state, flowmeter should be arranged on a U trap;
(3) for avoiding negative pressure, sensor can not be arranged on the water inlet of pump, and should be arranged on the water delivering orifice of pump;
(4) doctor-blade type electromagnetic flowmeter is when signal electrode needs care and maintenance, only need open capping, use hand turning handle, the rotation of drive scraping cutter bar, make the scraper of being close to signal electrode scrape off the lip-deep dirt of signal electrode, after cleaning, the direction of scraper is threaded to the direction mobile with fluid (having Directional Sign on knob).
Claims (7)
1. a doctor-blade type electromagnetic flowmeter, its composition comprises: housing, is characterized in that: in described shell, electrode is installed, described electrode is connected with iron core, described iron core is connected with magnetizing coil, and described magnetizing coil is connected with measuring tube, and described measuring tube is connected with lining.
2. doctor-blade type electromagnetic flowmeter according to claim 1, it is characterized in that: described electrode is detachable blade electrode mechanism, detachable blade electrode mechanism inside is installed with scraping cutter bar, described is fixed by nut, packing ring, between described packing ring and described measuring tube, be lined with insulating washer, described scraping cutter bar is connected with scraper, spring, backstop respectively, and described scraper, described spring, described backstop seal with O RunddichtringO, and described scraper is mounted on electrode end surface.
3. doctor-blade type electromagnetic flowmeter according to claim 1 and 2, is characterized in that: described measuring tube two ends are connected with tested pipeline.
4. a using method for Split type electric magnetic flowmeter, is characterized in that: the method comprises the steps:
(1) sensor can level or at right angle setting, but should guarantee to avoid sediment and the impact of bubble on potential electrode, electrode axis to maintenance level for well.
5. during at right angle setting, fluid should flow from bottom to top.
6. flowmeter can not be arranged on the extreme higher position of pipeline, and bubble is easily gathered in this position;
(2) guarantee that flowmeter, when measuring, is full of detected fluid in pipeline, can not occur non-full pipe state.
7. as pipeline exists non-full pipe or outlet, have emptying state, flowmeter should be arranged on a U trap;
(3) for avoiding negative pressure, sensor can not be arranged on the water inlet of pump, and should be arranged on the water delivering orifice of pump;
(4) doctor-blade type electromagnetic flowmeter is when signal electrode needs care and maintenance, only need open capping, use hand turning handle, drive scraping cutter bar rotation, make the scraper of being close to signal electrode scrape off the lip-deep dirt of signal electrode, after cleaning, the direction of scraper is threaded to the direction mobile with fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310570187.4A CN103557896A (en) | 2013-11-16 | 2013-11-16 | Scraper type electromagnetic flowmeter and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310570187.4A CN103557896A (en) | 2013-11-16 | 2013-11-16 | Scraper type electromagnetic flowmeter and mounting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103557896A true CN103557896A (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310570187.4A Withdrawn CN103557896A (en) | 2013-11-16 | 2013-11-16 | Scraper type electromagnetic flowmeter and mounting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103557896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567541A (en) * | 2019-09-19 | 2019-12-13 | 朱增秀 | Electromagnetic flowmeter |
| CN116734943A (en) * | 2023-08-14 | 2023-09-12 | 埃睿迪信息技术（北京）有限公司 | Electromagnetic flowmeter |
-
2013
- 2013-11-16 CN CN201310570187.4A patent/CN103557896A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567541A (en) * | 2019-09-19 | 2019-12-13 | 朱增秀 | Electromagnetic flowmeter |
| CN116734943A (en) * | 2023-08-14 | 2023-09-12 | 埃睿迪信息技术（北京）有限公司 | Electromagnetic flowmeter |
| CN116734943B (en) * | 2023-08-14 | 2023-10-27 | 埃睿迪信息技术（北京）有限公司 | Electromagnetic flowmeter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140205 |