CN103604473A - Wedge-shaped flowmeter and installation method - Google Patents
Wedge-shaped flowmeter and installation method Download PDFInfo
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- CN103604473A CN103604473A CN201310605246.7A CN201310605246A CN103604473A CN 103604473 A CN103604473 A CN 103604473A CN 201310605246 A CN201310605246 A CN 201310605246A CN 103604473 A CN103604473 A CN 103604473A
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Abstract
Disclosed are a wedge-shaped flowmeter and an installation method. The wedge-shaped flowmeter which is a novel throttle differential pressure type flow measuring instrument can perform high-precision flow measurement under fluid situations of high viscosity, low Reynolds number and the Reynolds number lower than 500 and has incomparable advantages and plays an irreplaceable role in flow measurement occasions low in flow velocity, small in flow amount and large in pipe diameter. Most existing wedge-shaped flowmeters are easy to block and prone to generating stagnant areas, and internal measurement elements are prone to corrosion and susceptible to impact and vibration, so that the wedge-shaped flowmeters are short in service lives, unreliable in measurement and complex in installation. The wedge-shaped flowmeter comprises a measuring tube (1) which is connected with a flange (2), a wedge-shaped sensor (3), a differential pressure indicator (4), a high-pressure measuring tap (5), a low-pressure measuring tap (6), a pressure transmitter (7) and a temperature transmitter (8) respectively. The wedge-shaped flowmeter is applied to measurement of fluid flow amount.
Description
technical field:
the present invention relates to a kind of wedge flow and take into account installation method.
background technology:
wedge flow meter is a kind of novel throttling differential pressure type flow measurement instrument, it can be under spendable fluid situations, to carry out high-precision flow measurement at high viscosity, low reynolds number, Reynolds number, 500, at flow velocity, compared with flow measurement occasion low, that flow is little, caliber is large, has unrivaled advantage and irreplaceable effect.Wedge flow meter is mainly used in the flow measurement of high viscosity heavy oil, residual oil, diesel oil, machine oil etc., industrial gas, coke-oven gas, blast furnace gas, producer gas, town gas, hydrogen, nitrogen, air, water vapour, sewage liquid and other medium.This flowmeter structure is simple, without movable member, be difficult for by fluid abrasion, stable work in work, reliable, long service life.Its measuring sensor and the special fluid of pressure obtaning device structure by time do not form be detained or retaining pressure loss less be in the situation that Reynolds number is lower, to carry out the ideal chose of high-precision flow measurement.But the wedge flow meter of use mostly easily stops up and produces stagnant area at present, inner detecting element is perishable, and the impact that is easily subject to impact, vibrations is larger, and serviceable life is short, and it is unreliable to measure, and installs complicated.
summary of the invention:
the object of this invention is to provide a kind of wedge flow and take into account installation method.
above-mentioned object realizes by following technical scheme:
a wedge flow meter, its composition comprises: measuring tube, described measuring tube is connected with flange, wedge type transducer, differential pressure display instrument, high pressure pressure tappings, low pressure pressure tappings, pressure unit, temperature transmitter respectively.
described wedge flow meter, described flange is positioned at measuring tube two ends, and described flange is connected with tested pipeline.
described wedge flow meter, described wedge type transducer is a V font voussoir, described wedge type transducer is detecting element.
an installation method for wedge flow meter, the method comprises the steps:
(1) wedge flow meter is installed and is used on level or vertical pipe, and when sensor is installed on vertical pipe, fluid should flow from bottom to top, while measuring liquid, should note making differential pressure transmitter can easily get rid of bubble, in order to avoid cause instrument drift;
(2) described sensor should be installed and used on the pipeline identical with its inside nominal diameter, and inner-walls of duct should be smooth, clean, without attachment;
(3), when level is installed, wedge shape differential pressure element should become with pipe centerline 90 degree; For at right angle setting, because influence of static pressure slight between pressure point must be noted that differential pressure transmitter zeroing.
beneficial effect:
1. be particularly suitable for high viscosity, low reynolds number, Medium Measurement with suspended particle or bubble, reproducible, degree of accuracy is high, measuring accuracy is not subject to impact and the restriction of the characteristics such as fluid media (medium) specific inductive capacity, proven wedge flow meter, precision reaches 0.5 grade, wedge shape part structural design is special, there is guide functions, anti-clogging, without stagnant area, wear-resistant, life-span is long, reliability is high, permanent Pressure Loss Ratio orifice plate is little, there is Change of Fluid Viscosity, temperature variation, the compensate functions such as variable density, integral structure, anti-vibration, shock resistance, anti-dirty, anticorrosive, on-the-spot installation without pilot pipeline is installed, directly carrying out flange with pipeline is connected, construct time saving and energy saving, simple in structure, convenient for installation and maintenance.
2. be suitable for measuring mud, coal-tar asphalt, coal aqueous suspensions and other high viscosity fluids, in very low pipeline Reynolds number situation (while being even low to moderate Re=500), between flow and differential pressure, still can keep square root relationship.And can the side amount minimum Reynolds number of orifice flowmeter is more much bigger than wedge flow meter, the wedge flow through demarcating is separately in respect of higher measuring accuracy (reaching as high as 0.5%), and the degree of accuracy of proven wedge flow meter can not reach 3% left and right yet.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present invention.
embodiment:
embodiment 1:
a wedge flow meter, its composition comprises: measuring tube 1, described measuring tube is connected with flange 2, wedge type transducer 3, differential pressure display instrument 4, high pressure pressure tappings 5, low pressure pressure tappings 6, pressure unit 7, temperature transmitter 8 respectively.
embodiment 2:
according to the wedge flow meter described in embodiment 1, described flange is positioned at measuring tube two ends, and described flange is connected with tested pipeline.
embodiment 3:
according to the wedge flow meter described in embodiment 1 or 2, described wedge type transducer is a V font voussoir (claiming again wedge shape throttling element), belongs to detecting element.
embodiment 4:
an installation method for wedge flow meter, the method comprises the steps:
(1) wedge flow meter can be installed and use on level or vertical pipe, when sensor is installed on vertical pipe, fluid should flow from bottom to top, while measuring liquid, should note making differential pressure transmitter can easily get rid of bubble, in order to avoid cause instrument drift;
(2) sensor should be installed and used on the pipeline identical with its inside nominal diameter, and inner-walls of duct should be smooth, clean, without attachment;
(3), when level is installed, wedge-type differential pressure element should become with pipe centerline 90 degree.For at right angle setting, because influence of static pressure slight between pressure point must be noted that differential pressure transmitter zeroing.
Claims (4)
1. a wedge flow meter, its composition comprises: measuring tube, is characterized in that: described measuring tube is connected with flange, wedge type transducer, differential pressure display instrument, high pressure pressure tappings, low pressure pressure tappings, pressure unit, temperature transmitter respectively.
2. wedge flow meter according to claim 1, is characterized in that: described flange is positioned at measuring tube two ends, and described flange is connected with tested pipeline.
3. wedge flow meter according to claim 1 and 2, is characterized in that: described wedge type transducer is a V font voussoir, and described wedge type transducer is detecting element.
4. an installation method for wedge flow meter, is characterized in that: the method comprises the steps:
(1) wedge flow meter is installed and is used on level or vertical pipe, and when sensor is installed on vertical pipe, fluid should flow from bottom to top, while measuring liquid, should note making differential pressure transmitter can easily get rid of bubble, in order to avoid cause instrument drift;
(2) described sensor should be installed and used on the pipeline identical with its inside nominal diameter, and inner-walls of duct should be smooth, clean, without attachment;
(3), when level is installed, wedge shape differential pressure element should become with pipe centerline 90 degree; For at right angle setting, because influence of static pressure slight between pressure point must be noted that differential pressure transmitter zeroing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605246.7A CN103604473A (en) | 2013-11-26 | 2013-11-26 | Wedge-shaped flowmeter and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605246.7A CN103604473A (en) | 2013-11-26 | 2013-11-26 | Wedge-shaped flowmeter and installation method |
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| CN103604473A true CN103604473A (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310605246.7A Withdrawn CN103604473A (en) | 2013-11-26 | 2013-11-26 | Wedge-shaped flowmeter and installation method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677526A (en) * | 2015-02-09 | 2015-06-03 | 江苏凯弘新能源管理有限公司 | Method for calculating heat energy of heat conducting oil |
| CN104977050A (en) * | 2015-07-17 | 2015-10-14 | 卢玖庆 | Variable flow wedge shaped flowmeter |
| CN105203429A (en) * | 2014-06-25 | 2015-12-30 | 天津海科信达石油技术有限公司 | Slurry density sensor |
| CN105890698A (en) * | 2016-06-13 | 2016-08-24 | 王燕 | Flow metering system for oilfield production fluid |
| CN107002918A (en) * | 2014-10-15 | 2017-08-01 | 恩德莱斯和豪瑟尔两合公司 | Hybrid flange |
| CN107558995A (en) * | 2017-08-10 | 2018-01-09 | 胜利油田华滨实业有限公司石油机械滨州分公司 | Integrated temperature pressure transmitter mounting process |
| CN108731751A (en) * | 2018-08-13 | 2018-11-02 | 合肥精都机电仪表有限公司 | A kind of heat preserving type wedge flow meter |
| CN110608781A (en) * | 2019-10-29 | 2019-12-24 | 上海洛丁森工业自动化设备有限公司 | Flow measuring device for gas-liquid mixed fluid and measuring system including same |
| CN112432675A (en) * | 2020-11-04 | 2021-03-02 | 合肥科迈捷智能传感技术有限公司 | Differential pressure flowmeter zero offset automatic correction method based on position sensor |
| CN115452068A (en) * | 2022-08-23 | 2022-12-09 | 常州东芝变压器有限公司 | Electronic Oil Flow Gauge |
-
2013
- 2013-11-26 CN CN201310605246.7A patent/CN103604473A/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203429A (en) * | 2014-06-25 | 2015-12-30 | 天津海科信达石油技术有限公司 | Slurry density sensor |
| US10619771B2 (en) | 2014-10-15 | 2020-04-14 | Endress+Hauser SE+Co. KG | Hybrid flange |
| CN107002918A (en) * | 2014-10-15 | 2017-08-01 | 恩德莱斯和豪瑟尔两合公司 | Hybrid flange |
| CN104677526A (en) * | 2015-02-09 | 2015-06-03 | 江苏凯弘新能源管理有限公司 | Method for calculating heat energy of heat conducting oil |
| CN104677526B (en) * | 2015-02-09 | 2017-11-17 | 江苏凯弘新能源管理有限公司 | Heat-conduction oil heat energy metering method |
| CN104977050A (en) * | 2015-07-17 | 2015-10-14 | 卢玖庆 | Variable flow wedge shaped flowmeter |
| CN105890698A (en) * | 2016-06-13 | 2016-08-24 | 王燕 | Flow metering system for oilfield production fluid |
| CN107558995A (en) * | 2017-08-10 | 2018-01-09 | 胜利油田华滨实业有限公司石油机械滨州分公司 | Integrated temperature pressure transmitter mounting process |
| CN108731751A (en) * | 2018-08-13 | 2018-11-02 | 合肥精都机电仪表有限公司 | A kind of heat preserving type wedge flow meter |
| CN110608781A (en) * | 2019-10-29 | 2019-12-24 | 上海洛丁森工业自动化设备有限公司 | Flow measuring device for gas-liquid mixed fluid and measuring system including same |
| CN112432675A (en) * | 2020-11-04 | 2021-03-02 | 合肥科迈捷智能传感技术有限公司 | Differential pressure flowmeter zero offset automatic correction method based on position sensor |
| CN112432675B (en) * | 2020-11-04 | 2023-10-24 | 合肥科迈捷智能传感技术有限公司 | Automatic correction method for zero offset of differential pressure flowmeter based on position sensor |
| CN115452068A (en) * | 2022-08-23 | 2022-12-09 | 常州东芝变压器有限公司 | Electronic Oil Flow Gauge |
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Application publication date: 20140226 |