CN101482429A - Apparatus for checking elbow meter - Google Patents
Apparatus for checking elbow meter Download PDFInfo
- Publication number
- CN101482429A CN101482429A CNA2008100802026A CN200810080202A CN101482429A CN 101482429 A CN101482429 A CN 101482429A CN A2008100802026 A CNA2008100802026 A CN A2008100802026A CN 200810080202 A CN200810080202 A CN 200810080202A CN 101482429 A CN101482429 A CN 101482429A
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- water
- calibrating
- elbowmeter
- checking
- bend pipe
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Abstract
The invention provides a special device for calibrating bend pipe flowmeter, belonging to the measuring equipment technology field, the technical scheme of which is: it consists of a water pump, a voltage-stabilizer, a detecting instrument, a calibrating bench and a water tank; the water pump, the voltage-stabilizer, the detecting instrument, the calibrating bench and the water tank are connected into a circulation pipeline by water pipes disposed there between; the bend pipe flowmeter is placed on the calibrating bench with two ends respectively connected with the detecting instrument and the water tank though water pipe; the axis of the front direct section of the water pipe connected to the front end of the pipe flowmeter is perpendicular to the axis of the rear direct section of the water pipe connected to the rear end of the pipe flowmeter, and the two axes are in same plane. The using method of the device in the invention comprises: placing the bend pipe flowmeter onto the calibrating bench, connecting the two ends respectively to the detecting instrument and the water tank, starting the water pump, and cycling the water through to detecting the performance of the bend pipe flowmeter. The device fills the blank of special device for detecting bend pipe flowmeter.
Description
Technical field
The present invention relates to a kind of device that detects elbowmeter, belong to technical field of measuring equipment.
Background technology
Elbowmeter is as a kind of measuring products, and its advantage has obtained measuring the approval on boundary, and is widely used in industry gradually, a plurality of fields such as public utilities.The advantage of elbowmeter is mainly reflected in aspects such as principle is reliable, simple in structure, energy-saving and cost-reducing, maintenance is few, the primary sensing element of elbowmeter---Bending Tube Sensor is applicable to abominable industrial environment, for various abominable field conditions such as high temperature, high pressure, humidity, dust, vibrations good applicability is arranged, can be to Φ 20-Φ 2000mm, even bigger pipeline carries out accurate flow measurement.Under the cooperation of intelligent instrument specially for same or modular converter, can satisfy the demand in the flow measurement of liquid, gas and steam of industry-by-industries such as electric power, heating power, metallurgy, iron and steel, oil, chemical industry, machinery, weaving, papermaking, pharmacy, food processing and public utilities.Its application and development prospect are wide.
The principle of work of elbowmeter is that fluid flows through a pipeline under a certain pressure condition of a certain temperature, and when it flows through bend pipe, this fluid will be done corresponding circumference and rotatablely move.Force the eddy flow scheduling theory according to fluid, fluid is made circular motion and solid in pipeline to make circular motion under spatiality similar, therefore fluid will inevitably produce pressure differential on bend pipe madial wall and lateral wall, the density of this pressure extent and flow rate of fluid, fluid and to make the radius-of-curvature factors such as (radius-of-curvature of bend pipe just) of circular motion relevant, that is to say that the flow velocity of fluid in pipeline is the function of the factors such as pressure differential that produce on the radius-of-curvature of fluid density, bend pipe and bend pipe madial wall and the lateral wall.
Wherein the bend pipe radius-of-curvature can be by accurately measuring, the fluid density that flows through bend pipe can be tried to achieve exactly by the temperature of convection cell, the mensuration of pressure and other parameters, the pressure extent that the outside produces in the bend pipe can directly record by the higher precision differential pressure transmitter, so just can calculate the flow velocity of fluid in pipeline, again flow velocity be multiply by the sectional area of pipeline, can determine the flow of fluid.
In the making and use of elbowmeter, the measuring accuracy of elbowmeter and repeatable playback accuracy can be subjected to the influence of the quality of elbowmeter own, comprise verticality, levelness, torsion resistance, out-of-roundness, uniformity coefficient of elbowmeter etc., also be subjected to simultaneously the influence of installation quality, therefore to the calibrating of elbowmeter be make and use in requisite important step.
Existing Flowmeter Verification System is the system that is used to examine and determine flowmeter on the straight length, pipeline is arranged and is linear pattern, be that the axis of straight length all is located on the same line after straight length before the system, calibrating section, the system, do not have special verification system, therefore be necessary very much to design a kind of calibrating installation of special checking elbow meter at elbowmeter.
Summary of the invention
Technical matters to be solved by this invention provides a kind of device of specially elbowmeter being examined and determine.
The technical scheme that solves the problems of the technologies described above is:
A kind of device of checking elbow meter, it is made up of water pump, voltage stabilizer, measuring instrument, calibrating platform, pond, there is water-filled pipe to be communicated with between water pump, voltage stabilizer, measuring instrument, calibrating platform, the pond and is circulation line, elbowmeter is placed on the calibrating platform, and two ends are connected with the pond with measuring instrument by water-filled pipe respectively.
The device of above-mentioned checking elbow meter, the axis normal of the described water-filled pipe that is connected with the elbowmeter front end (preceding straight length) be in the axis of the water-filled pipe that is connected with the elbowmeter rear end (back straight length), and in same plane.
The device of above-mentioned checking elbow meter, there is joint flange the junction between described water-filled pipe and the each several part.
The device of above-mentioned checking elbow meter all is equipped with valve on the water-filled pipe between voltage stabilizer and the measuring instrument, between measuring instrument and the calibrating platform, between calibrating platform and the pond.
The device of this checking elbow meter, elbowmeter can be placed on the calibrating platform, two ends are joint detection instrument and pond respectively, start water pump, water circular flow in device, can detect the performance of elbowmeter, this device has been filled up the blank of the calibrating installation that does not have special detection elbowmeter.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention.
Mark is as follows among the figure: water pump 1, voltage stabilizer 2, measuring instrument 3, calibrating platform 4, preceding straight length 5, back straight length 6, elbowmeter 7, pond 8, water-filled pipe 9, valve 10
Embodiment
Show among the figure, the present invention is a kind of device of checking elbow meter, and it is made up of water pump 1, voltage stabilizer 2, measuring instrument 3, calibrating platform 4, pond 8, has water-filled pipe 9 to be communicated with between the various piece, form circulation line, measuring instrument 3 is two-way or multi-channel parallel.
Calibrating platform 4 is placed on elbowmeter 7 on the calibrating platform 4 during detection for detecting the parts of elbowmeter 7, and two ends 8 are connected mutually by water-filled pipe 9 and measuring instrument 3 and pond respectively.In order to realize accurate connection, to make the axis normal of straight lengths 5 before the water-filled pipe that is connected with elbowmeter 7 front ends 9 in the back axis of straight lengths 6 of the water-filled pipe 9 that is connected with elbowmeter 7 rear ends when making this device, and in same plane, guarantee that with this deviation does not appear in connection, make the liquid that flows through not have turbulent flow and be hindered.
Also show among the figure, between voltage stabilizer 2 and the measuring instrument 3, measuring instrument 3 with examine and determine between the platform 4, examine and determine on the water-filled pipe 9 between platform 4 and the pond 8 valve 10 all is installed.There is joint flange junction between above-mentioned water-filled pipe 9 and the each several part.
When this calibrating installation uses, elbowmeter 7 is placed on the calibrating platform 4, and two ends are joint detection instrument 3 and pond 8 respectively, makes whole pipeline form a loop, fluid circulates at pipe interior, is that benchmark experimentizes to elbowmeter 7 and detects with measuring instrument 3.This kind calibrating installation can satisfy the requirement of elbowmeter calibrating fully through practical application.
Claims (4)
1. the device of a checking elbow meter, it is characterized in that: it is made up of water pump [1], voltage stabilizer [2], measuring instrument [3], calibrating platform [4], pond [8], there is water-filled pipe [9] to be communicated with between water pump [1], voltage stabilizer [2], measuring instrument [3], calibrating platform [4], pond [8] and is circulation line, elbowmeter [7] is placed on the calibrating platform [4], and two ends are connected with pond [8] with measuring instrument [3] by water-filled pipe [9] respectively.
2. the device of checking elbow meter according to claim 1, it is characterized in that: the axis of the axis normal of the described preceding straight length of water-filled pipe [9] [5] that is connected with elbowmeter [7] front end straight length [6] behind the water-filled pipe [9] that is connected with elbowmeter [7] rear end, and in same plane.
3. the device of checking elbow meter according to claim 2, it is characterized in that: there is joint flange the junction between described water-filled pipe [9] and the each several part.
4. the device of checking elbow meter according to claim 3 is characterized in that: on the water-filled pipe [9] between voltage stabilizer [2] and the measuring instrument [3], between measuring instrument [3] and the calibrating platform [4], between calibrating platform [4] and pond [8] valve [10] is installed all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100802026A CN101482429A (en) | 2008-12-23 | 2008-12-23 | Apparatus for checking elbow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100802026A CN101482429A (en) | 2008-12-23 | 2008-12-23 | Apparatus for checking elbow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101482429A true CN101482429A (en) | 2009-07-15 |
Family
ID=40879640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100802026A Pending CN101482429A (en) | 2008-12-23 | 2008-12-23 | Apparatus for checking elbow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101482429A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252722A (en) * | 2010-10-25 | 2011-11-23 | 中国石油化工股份有限公司 | Three-differential-pressure gas liquid two-phase fluid flow metering device |
| CN104928423A (en) * | 2015-06-19 | 2015-09-23 | 武汉钢铁(集团)公司 | Blast furnace cooling wall leakage detection device |
| CN105571842A (en) * | 2015-12-11 | 2016-05-11 | 中国北方发动机研究所(天津) | Aero-engine fluid director novel test device |
-
2008
- 2008-12-23 CN CNA2008100802026A patent/CN101482429A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252722A (en) * | 2010-10-25 | 2011-11-23 | 中国石油化工股份有限公司 | Three-differential-pressure gas liquid two-phase fluid flow metering device |
| CN102252722B (en) * | 2010-10-25 | 2012-07-25 | 中国石油化工股份有限公司 | Three-differential-pressure gas liquid two-phase fluid flow metering device |
| CN104928423A (en) * | 2015-06-19 | 2015-09-23 | 武汉钢铁(集团)公司 | Blast furnace cooling wall leakage detection device |
| CN104928423B (en) * | 2015-06-19 | 2017-04-05 | 武汉钢铁(集团)公司 | A kind of blast furnace cooling stave leak detection device |
| CN105571842A (en) * | 2015-12-11 | 2016-05-11 | 中国北方发动机研究所(天津) | Aero-engine fluid director novel test device |
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Open date: 20090715 |