CN207248304U - Improvement type mass flowmeter calibration detecting system - Google Patents
Improvement type mass flowmeter calibration detecting system Download PDFInfo
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- CN207248304U CN207248304U CN201720659264.7U CN201720659264U CN207248304U CN 207248304 U CN207248304 U CN 207248304U CN 201720659264 U CN201720659264 U CN 201720659264U CN 207248304 U CN207248304 U CN 207248304U
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Abstract
The utility model provides a kind of improvement type mass flowmeter calibration detecting system, 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；Improvement type mass flowmeter calibration detecting system in the utility model, constant-current voltage-stabilizing tank body is installed in calibration mass flowmeter front end, the calibration medium solution of constant-current voltage-stabilizing can be provided, realize that mass flowmenter can export stable phase signal in metering process is demarcated, the mass flowmenter of calibration is demarcated installed in the pipeline of falling gate place at the same time, the calibration 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, compensate for the defects of existing caliberating device can not realize lifting product stated accuracy.
Description
Technical field
It the utility model is related to detection field, more particularly to a kind of improvement type mass flowmeter calibration detecting system.
Background technology
Mass flowmenter be measure pipeline endoplasm amount flow flow measurement instrument, existing mass flowmeter calibration pipe
The calibration in road, whether mass flow, or the calibration of density, using the mode of straight type calibration pipeline, and are treating matter
The front end of flow meter calibration flange is measured without constant current stable-pressure device.Although mass flowmenter product matter is carried out using straight type calibration pipeline
The calibration of amount flow and density can realize the standard of product export calibration detection, but the standard is also relatively low in similar product
The precision of the accuracy standard of class, generally 0.5%.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 produce problem.It is 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.
Utility model content
In view of the foregoing deficiencies of prior art, the utility model provides a kind of improvement type mass flowmeter calibration detection
System, to solve above-mentioned technical problem.
Improvement type mass flowmeter calibration detecting system provided by the utility model, includes at least：Volumetric solution output is single
Member, calibration pipeline, metering units and the stationary base mount for fixing calibration pipeline, the volumetric solution output unit and calibrating tube
Road connects, and the calibration pipeline is 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 connects, below the liquid level for the inside that the mass flowmenter to be calibrated is arranged at 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 arranged at down the door of door type structure for door type structure, mass flowmenter to be calibrated
The calibration pipeline of Liang Chu.
Further, actuator switch and the control unit with actuator switch connection, the actuator switch bag are further included
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.
The beneficial effects of the utility model：Improvement type mass flowmeter calibration detecting system in the utility model, is being marked
Determine mass flowmenter front end installation constant-current voltage-stabilizing tank body, the calibration medium solution of constant-current voltage-stabilizing can be provided, realize mass flow
Meter can export stable phase signal in metering process is demarcated, while be installed on gate by the mass flowmenter of calibration
Demarcated at pipeline, the calibration measuring accuracy of mass flowmenter product can either be improved, and a whole set of caliberating device system can be improved
The measuring accuracy of system, compensate for the defects of existing caliberating device can not realize lifting product stated accuracy.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 be the utility model embodiment in bubble existence position schematic diagram in the calibration pipeline of falling gate.
Fig. 3 is the micrometeor mass flowmenter phase difference output fluctuation data and curves signal of the embodiment of the utility model
Figure.
Fig. 4 is the big flow mass flowmenter phase difference output fluctuation data and curves signal of the embodiment of the utility model
Figure.
Embodiment
Illustrate the embodiment of the utility model below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages and effect of the utility model easily.The utility model can also be by addition
Different embodiments are embodied or practiced, and the various details in this specification can also be based on different viewpoints with answering
With carrying out various modifications or alterations under the spirit without departing from the utility model.It should be noted that in situation about not conflicting
Under, the feature in following embodiments and embodiment can be mutually combined.
It should be noted that the diagram provided in following embodiments only illustrates the basic of the utility model in a schematic way
Conception, then only the display component related with the utility model rather than component count, shape during according to actual implementation in schema
And size is drawn, kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and its assembly layout
Kenel may also be increasingly complex.
As shown in Figure 1, the improvement type mass flowmeter calibration detecting system in the present embodiment, includes at least：Volumetric solution
Output unit, calibration pipeline, metering units and the stationary base mount for fixing calibration pipeline, volumetric solution output unit and calibration
Pipeline connects, and calibration pipeline is connected with metering units；
Volumetric solution output unit includes volumetric solution device, solution pump and constant pressure and flow tank, volumetric solution device with it is molten
Liquid pump connects, 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 calibration medium solution of voltage stabilizing, realizes that mass flowmenter can export stable phase signal in metering process is demarcated, into
And improve the calibration 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 are arranged at down the calibration pipeline of the door Liang Chu of door type structure.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 to install pipes
In the presence of making in pipeline that there are a certain proportion of bubble.Therefore, designed pipeline and trend can reduce calibration to greatest extent
Air bubble content in medium solution, or filtered out the bubble demarcated in medium solution by certain device, so ensure to 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 the door type structure that falls 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 " it is horizontal-downward vertically-
The concave shape of horizontal-upward vertical-horizontal ", as door type structure, as shown in Figure 1, 2, the present embodiment uses this knot
Structure, in the calibration production procedure of actual mass flow, 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 produces, or installation mass flowmenter to be calibrated
The bubble produced at mounting flange can be all back in constant-current voltage-stabilizing tank body by calibration pipeline.Usually carrying out mass flow
Count product quality flow calibration before, carry out first work be exactly mass flowmenter to be calibrated is installed on it is as shown in Figure 1
In apparatus system and No leakage phenomenon；Secondly make calibration medium solution in calibration pipeline in small flow and constant pressure current stabilization
By mass flowmenter to be calibrated, its purpose is exactly that the maximum bubble for excluding to enter in mass flow meter sensor 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, calibration 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 calibration detection device system of type.Then the inspection of the micro-flowmeter and maximum stream flow output signal when 6 is small is carried out respectively
Survey, observe the fluctuation status that signal is exported under two states, as shown in figure 3, matter under the device micrometeor state in the present embodiment
Measure the record data and curves 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 it is small when 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 and curves of phase difference output, it can be seen that the mass flowmenter of the DN25 bores in the present embodiment, carries 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 calibration 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 calibration medium solution, and can provide the calibration medium of constant-current voltage-stabilizing
Solution, realizes that mass flowmenter can export stable phase signal in metering process is demarcated, and then improves complete machine matter
Measure the calibration 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 calibration 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 application of mass flowmenter product reality, range ratio is generally selected as 1:10 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, actuator switch and the control unit with actuator switch connection, the actuator are further included
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 and metering units to be calibrated.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 use microcontroller, CPU, ARM process chip etc. to have the component of control function, and those skilled in the art can be with
Easily obtain, details are not described herein.
The above embodiments are only illustrative of the principle and efficacy of the utility model, new not for this practicality is limited
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by the claim of the utility model.
Claims (5)
1. a kind of improvement type mass flowmeter calibration detecting system, it is characterised in that include at least：Volumetric solution output unit,
Calibration pipeline, metering units and the stationary base mount for fixing calibration pipeline, the volumetric solution output unit and calibration pipeline
Connection, the calibration pipeline are 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；
Mass flowmenter to be calibrated is connected with the calibration pipeline, and the calibration pipeline is connected with constant pressure and flow pot bottom, described
Mass flowmenter to be calibrated is arranged at below the liquid level of the inside of constant pressure and flow tank.
2. improvement type mass flowmeter calibration detecting system according to claim 1, it is characterised in that：The calibration pipeline
Downward corner is provided with, the horizontal plane of the installation site of the mass flowmenter to be calibrated is less than calibration pipeline and constant pressure and flow
The horizontal level of tank junction.
3. according to any improvement type mass flowmeter calibration detecting systems of claim 1-2, it is characterised in that：The mark
Fixed tube road is arranged at down the calibration pipeline of the door Liang Chu of door type structure for door type structure, mass flowmenter to be calibrated.
4. improvement type mass flowmeter calibration detecting system according to claim 1, it is characterised in that：Further include actuator
Switch and the control unit with actuator switch connection, the actuator switch include being arranged at constant pressure and flow tank and matter to be calibrated
Measure the first actuator switch of the calibration pipeline between flowmeter, and be arranged at mass flowmenter to be calibrated and metering units it
Between calibration pipeline the second actuator switch.
5. improvement type mass flowmeter calibration detecting system according to claim 4, it is characterised in that：The metering units
For electronic scale, the electronic scale is provided with draining control valve, and the draining control valve is connected with control unit.
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| CN201720659264.7U CN207248304U (en) | 2017-06-06 | 2017-06-06 | Improvement type mass flowmeter calibration detecting system |
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| CN201720659264.7U CN207248304U (en) | 2017-06-06 | 2017-06-06 | Improvement type mass flowmeter calibration detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144325A (en) * | 2017-06-06 | 2017-09-08 | 重庆川仪自动化股份有限公司 | Mass flowmeter calibration detection means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144325A (en) * | 2017-06-06 | 2017-09-08 | 重庆川仪自动化股份有限公司 | Mass flowmeter calibration detection means |
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