CN107144325A - Mass flowmeter calibration detection means - Google Patents
Mass flowmeter calibration detection means Download PDFInfo
- Publication number
- CN107144325A CN107144325A CN201710418736.4A CN201710418736A CN107144325A CN 107144325 A CN107144325 A CN 107144325A CN 201710418736 A CN201710418736 A CN 201710418736A CN 107144325 A CN107144325 A CN 107144325A
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- Prior art keywords
- calibration
- pipeline
- mass
- detection means
- mass flowmenter
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention provides a kind of mass flowmeter calibration detection means, including：Volumetric solution output unit, calibration pipeline, metering units and the stationary base mount for fixing calibration pipeline, the volumetric solution output unit are connected with calibration pipeline, and the calibration pipeline is connected with metering units；Mass flowmeter calibration detection means in the present invention, constant-current voltage-stabilizing tank body is installed in calibration mass flowmeter front end, the demarcation medium solution of constant-current voltage-stabilizing can be provided, realize that mass flowmenter can export stable phase signal in demarcation metering process, the mass flowmenter of demarcation is demarcated installed in the pipeline of falling gate place simultaneously, the demarcation measuring accuracy of mass flowmenter product can either be improved, the measuring accuracy of a whole set of caliberating device system can be improved again, and compensate for existing caliberating device can not realize the defect of lifting product stated accuracy.
Description
Technical field
The present invention relates to detection field, more particularly to a kind of mass flowmeter calibration detection means.
Background technology
Mass flowmenter is the flow measurement instrument for measuring pipeline endoplasm amount flow, existing mass flowmeter calibration pipe
The demarcation in road, whether mass flow, or density demarcation, use the mode of straight type calibration pipeline, and treating matter
The front end of flow meter calibration flange is measured without constant current stable-pressure device.Although carrying out mass flowmenter product matter using straight type calibration pipeline
The demarcation of amount flow and density can realize the standard that product export demarcation is detected, but the standard is also relatively low in like product
The accuracy standard of class, generally 0.5% precision.If the mass flowmenter under the precision is only intended to food and medicine etc.
Detection part in field, then can also meet customer need and be not in larger economic loss and production problem.However, big
Partial mass flowmenter product contributes to the fields such as oil, petrochemical industry, trade settlement, and this requires mass flowmenter product
Precision is less than 0.1% precision.Therefore, for mass flowmenter product, the precision of itself product should be improved, also
Improve the precision of the product caliberating device.
The content of the invention
The shortcoming of prior art, of the invention to provide a kind of mass flowmeter calibration detection means in view of the above, to solve
Certainly above-mentioned technical problem.
The mass flowmeter calibration detection means that the present invention is provided, at least includes：Volumetric solution output unit, calibrating tube
Road, metering units and the stationary base mount for fixing calibration pipeline, the volumetric solution output unit are connected with calibration pipeline, institute
Calibration pipeline is stated to be connected with metering units；
The volumetric solution output unit includes volumetric solution device, solution pump and constant pressure and flow tank, the volumetric solution
Device is connected with solution pump, and the solution pump is connected with constant current constant voltage tank.
Further, mass flowmenter to be calibrated is connected with the calibration pipeline, the calibration pipeline and constant pressure and flow tank bottom
Portion is connected, and the mass flowmenter to be calibrated is arranged at below the liquid level of the inside of constant pressure and flow tank.
Further, the calibration pipeline is provided with downward corner, the installation site of the mass flowmenter to be calibrated
Horizontal plane is less than calibration pipeline and the horizontal level of constant pressure and flow tank junction.
Further, the calibration pipeline is door type structure, and mass flowmenter to be calibrated is arranged at down the door of door type structure
Liang Chu calibration pipeline.
Further, in addition to actuator switch and the control unit that be connected is switched with actuator, the actuator switch is wrapped
The the first actuator switch for the calibration pipeline being arranged between constant pressure and flow tank and mass flowmenter to be calibrated is included, and is arranged at
The second actuator switch of calibration pipeline between mass flowmenter and metering units to be calibrated.
Further, the metering units are electronic scale, and the electronic scale is provided with draining control valve, the draining control valve
It is connected with control unit.
Beneficial effects of the present invention：Mass flowmeter calibration detection means in the present invention, before calibration mass flowmeter
Constant-current voltage-stabilizing tank body is installed at end, can be provided the demarcation medium solution of constant-current voltage-stabilizing, be realized that mass flowmenter was measured in demarcation
Stable phase signal can be exported in journey, while the mass flowmenter of demarcation is entered into rower installed in the pipeline of falling gate place
It is fixed, it can either improve the demarcation measuring accuracy of mass flowmenter product, and can improve the measuring accuracy of the whole series caliberating device system,
Compensate for existing caliberating device can not realize the defect of lifting product stated accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is bubble existence position schematic diagram in the calibration pipeline of falling gate in embodiments of the invention.
Fig. 3 is the micrometeor mass flowmenter phase difference output fluctuation data curve synoptic diagram of embodiments of the invention.
Fig. 4 is the big flow mass flowmenter phase difference output fluctuation data curve synoptic diagram of embodiments of the invention.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that, in the case where not conflicting, following examples and implementation
Feature in example can be mutually combined.
It should be noted that the diagram provided in following examples only illustrates the basic structure of the present invention in a schematic way
Think, then in schema only display with relevant component in the present invention rather than according to component count, shape and the size during actual implement
Draw, it is actual when implementing, and kenel, quantity and the ratio of each component can be a kind of random change, and its assembly layout kenel
It is likely more complexity.
As shown in figure 1, the mass flowmeter calibration detection means in the present embodiment, at least includes：Volumetric solution output is single
Member, calibration pipeline, metering units and the stationary base mount for fixing calibration pipeline, volumetric solution output unit connect with calibration pipeline
Connect, calibration pipeline is connected with metering units；
Volumetric solution output unit include volumetric solution device, solution pump and constant pressure and flow tank, volumetric solution device with it is molten
Liquid pump is connected, and solution pump is connected with constant current constant voltage tank.
In the present embodiment, constant-current voltage-stabilizing tank is installed in the front end of mass flowmenter flange to be calibrated, constant current can be provided
The demarcation medium solution of voltage stabilizing, realizes that mass flowmenter can export stable phase signal in demarcation metering process, enters
And improve the demarcation measuring accuracy of overall mass flowmeter and the precision of a whole set of caliberating device.
In the present embodiment, calibration pipeline is horizontally disposed with, and mass flowmenter to be calibrated is connected with the calibration pipeline, described
Calibration pipeline is connected with constant pressure and flow pot bottom, and the mass flowmenter to be calibrated is arranged at the liquid of the inside of constant pressure and flow tank
Below horizontal plane.Preferably, calibration pipeline is provided with downward corner, the water of the installation site of the mass flowmenter to be calibrated
Plane is less than calibration pipeline and the horizontal level of constant pressure and flow tank junction.Calibration pipeline in the present embodiment is the knot of falling gate
Structure, mass flowmenter to be calibrated is arranged at down the door Liang Chu of door type structure calibration pipeline.In mass flowmenter mass flow mark
In fixed production process, the calibration pipeline of which kind of shape is whether designed, all can be because of solution pump in the inside installed pipes
In the presence of making the presence of a certain proportion of bubble in pipeline.Therefore, designed pipeline and trend can reduce demarcation to greatest extent
Air bubble content in medium solution, or filtered out the bubble demarcated in medium solution by certain device, so ensure mark
The state of the steady bubble-free of medium solution is determined by mass flowmenter to be calibrated, improves package unit system and mass flowmenter
The precision of product.The present embodiment uses the calibration pipeline of falling gate, and door type structure refers to that calibration pipeline is connected by right angle corner
Device makes horizontal calibration pipeline form downward turning, so make calibration pipeline be integrally formed one " level-downward vertically-
The shape of the depression of the vertical-horizontal of level-upwards ", as door type structure, as shown in Figure 1, 2, the present embodiment uses this knot
Structure, in actual mass flow demarcation production procedure, the bubble in pipeline is greatly filtered to constant-current voltage-stabilizing tank body
Superjacent air space in.
In the present embodiment, whether due to the bubble that solution pump work is produced, or mass flowmenter to be calibrated is installed
The bubble produced at mounting flange can be all back in constant-current voltage-stabilizing tank body by calibration pipeline.Generally carrying out mass flow
Count before product quality flow calibration, mass flowmenter to be calibrated is installed on as shown in Figure 1 by the work carried out first
In apparatus system and No leakage phenomenon；Next to that making demarcation medium solution in calibration pipeline in low discharge and constant pressure current stabilization
By mass flowmenter to be calibrated, its purpose is exactly that the maximum bubble entered in mass flow meter sensor that excludes contains
Amount, farthest by bubble residence in volumetric solution in constant-current voltage-stabilizing tank body, and it is certain to work in this condition
Time；Finally, demarcation production work is carried out.In order to verify the mass flowmenter quality stream based on gate and constant-current voltage-stabilizing tank body
The overall precision of caliberating device system is measured, the DN25 bores mass flowmenter chosen in the caliberating device of straight pipeline formula is installed new
In the demarcation detection means system of type.Then the micro-flowmeter up to 6 hours and the inspection of maximum stream flow output signal are carried out respectively
Survey, the fluctuation status of output signal under observation two states, as shown in figure 3, matter under the device micrometeor state in the present embodiment
Measure the record data curve of the real-time phase difference output of flowmeter, it can be seen that the mass flowmenter of DN25 bores in the present embodiment,
Carry out up to 6 hours micrometeor test, in this condition mass flowmenter output phase difference fluctuation range for 0.03584 °-
0.036 °, that is, there is 0.00016 ° of fluctuation.As shown in figure 4, mass flowmenter is real-time under device big flow state in the present embodiment
The record data curve of phase difference output, it can be seen that the mass flowmenter of the DN25 bores in the present embodiment, is carried out small up to 6
When big flow test, in this condition mass flowmenter output phase difference fluctuation range be 1.2455 ° -1.24657 °, i.e.,
There is 0.00107 ° of fluctuation.Being filled based on gate and the demarcation of the mass flowmenter mass flow of constant-current voltage-stabilizing tank body in the present embodiment
The system of putting can farthest eliminate the air bubble content in demarcation medium solution, and can provide the demarcation medium of constant-current voltage-stabilizing
Solution, realizes that mass flowmenter can export stable phase signal in demarcation metering process, and then improve complete machine matter
Measure the demarcation measuring accuracy of flowmeter and the precision of a whole set of caliberating device.The mass flowmenter of DN25 bores is new based on
The demarcation measuring accuracy data such as institute of table 1 in gate and the mass flowmenter mass flow caliberating device system of constant-current voltage-stabilizing tank body
Show：
Table 1
As it can be seen from table 1 the best precision of DN25 bore mass flowmenter application the present embodiment is 0.075194%, when
Instrument carries out the worst precision for being only 0.266756%, being so far below 0.5% of its precision during micrometeor gauge check.
In the actual application of mass flowmenter product, it is 1 to generally select range ratio:10 pantograph ratio range is used as the usage amount of instrument
Journey scope, i.e., be 12kg/M-120kg/M with the optimal use range scope of the mass flowmenter instrument of DN25 bores, so
The mass flowmenter instrument application of DN25 bores demarcates the precision of completion 0.1% or so in the present embodiment.
In the present embodiment, in addition to actuator switch and the control unit that is connected, the actuator are switched with actuator
Switch includes the first actuator switch for the calibration pipeline being arranged between constant pressure and flow tank and mass flowmenter to be calibrated, and
The the second actuator switch for the calibration pipeline being arranged between mass flowmenter to be calibrated and metering units.Meter in the present embodiment
Amount unit is electronic scale, and electronic scale is connected with draining control valve, and draining control valve is connected with control unit.Control in the present embodiment
Unit processed can have a component of control function using single-chip microcomputer, CPU, ARM process chip etc., and those skilled in the art can be with
Easily obtain, will not be repeated here.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. a kind of mass flowmeter calibration detection means, it is characterised in that at least include：Volumetric solution output unit, calibrating tube
Road, metering units and the stationary base mount for fixing calibration pipeline, the volumetric solution output unit are connected with calibration pipeline, institute
Calibration pipeline is stated to be connected with metering units；
The volumetric solution output unit includes volumetric solution device, solution pump and constant pressure and flow tank, the volumetric solution device
It is connected with solution pump, the solution pump is connected with constant current constant voltage tank.
2. mass flowmeter calibration detection means according to claim 1, it is characterised in that：Mass flowmenter to be calibrated with
The calibration pipeline connection, the calibration pipeline is connected with constant pressure and flow pot bottom, and the mass flowmenter to be calibrated is arranged at
Below the liquid level of the inside of constant pressure and flow tank.
3. mass flowmeter calibration detection means according to claim 2, it is characterised in that：The calibration pipeline is provided with
Downward corner, the horizontal plane of the installation site of the mass flowmenter to be calibrated is connected less than calibration pipeline with constant pressure and flow tank
The horizontal level at place.
4. according to any described mass flowmeter calibration detection means of claim 3, it is characterised in that：The calibration pipeline is
Door type structure, mass flowmenter to be calibrated is arranged at down the door Liang Chu of door type structure calibration pipeline.
5. mass flowmeter calibration detection means according to claim 4, it is characterised in that：Also include actuator switch and
The control unit being connected is switched with actuator, the actuator switch includes being arranged at constant pressure and flow tank and mass flow to be calibrated
The first actuator switch of calibration pipeline between meter, and the mark being arranged between mass flowmenter to be calibrated and metering units
The second actuator switch in fixed tube road.
6. mass flowmeter calibration detection means according to claim 5, it is characterised in that：The metering units are electronics
Scale, the electronic scale is provided with draining control valve, and the draining control valve is connected with control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418736.4A CN107144325B (en) | 2017-06-06 | 2017-06-06 | Calibration and detection device for mass flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418736.4A CN107144325B (en) | 2017-06-06 | 2017-06-06 | Calibration and detection device for mass flowmeter |
Publications (2)
| Publication Number | Publication Date |
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| CN107144325A true CN107144325A (en) | 2017-09-08 |
| CN107144325B CN107144325B (en) | 2023-09-01 |
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|---|---|---|---|
| CN201710418736.4A Active CN107144325B (en) | 2017-06-06 | 2017-06-06 | Calibration and detection device for mass flowmeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702784A (en) * | 2017-11-01 | 2018-02-16 | 平顶山市质量技术监督检验测试中心 | A kind of portable quality stabilising arrangement |
| CN109827640A (en) * | 2019-01-17 | 2019-05-31 | 承德石油高等专科学校 | A kind of metal floater flowmeter viscosity correction device and bearing calibration |
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| CN109827640A (en) * | 2019-01-17 | 2019-05-31 | 承德石油高等专科学校 | A kind of metal floater flowmeter viscosity correction device and bearing calibration |
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| Publication number | Publication date |
|---|---|
| CN107144325B (en) | 2023-09-01 |
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