CN103452828B - The flow titration scaling method of flow pump different liquids - Google Patents
The flow titration scaling method of flow pump different liquids Download PDFInfo
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- CN103452828B CN103452828B CN201210173157.5A CN201210173157A CN103452828B CN 103452828 B CN103452828 B CN 103452828B CN 201210173157 A CN201210173157 A CN 201210173157A CN 103452828 B CN103452828 B CN 103452828B
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Abstract
The invention discloses the flow titration scaling method of a kind of flow pump different liquids, i.e. flow pump flow set is set as 1ml/min flow, stops after starting flow pump 10 min after resetting, in standard measuring cup, liquid should be 10 ml；As error is more than 10%, then adjusting flow pump rotating speed until error is less than 10%, calculating the quality of 10ml liquid according to liquid specific gravity, if liquid specific gravity is P, then the quality of 10ml liquid is 10P；Restarting flow pump, being placed in the standard measuring cup emptying on electronic balance, observe electronic balance indicated value, indicated value should be 10P, as electronic balance indicated value error is more than 1%, then finely tunes flow pump rotating speed, until indicated value is 10P ± 1%；Flow pump is set as 10ml/min flow, stops after starting flow pump 1 min, repeat liquid quality in weighing standard measuring cup, until weighing error is less than 1%.This method can implement the flow calibration of flow pump for different liquids, improves flow pump measuring accuracy, it is ensured that prepare the quality of product.
Description
Technical field
The present invention relates to the flow titration scaling method of a kind of flow pump different liquids.
Background technology
Flow pump be widely used in liquid transmission and metering, the flow calibration of flow pump generally refer to use water or
Alcohol as liquid implement demarcate, for example with water for liquid through calibrational capacity pump discharge as 2ml/min.But
New energy field, the catalyst component through flow pump is complicated, and the proportion such as platinum in pt/c catalyst is up to 23.1,
Mixing with carbon dust etc., its viscosity coefficient is different with the change of composition again, then through demarcating with water or alcohol
Its flow indication of flow pump can produce very big error, flow may reduce several times.Thus with water or alcohol
The flow pump demarcated its setting flow in the catalyst process of conveying different viscosities is not inconsistent with actual flow, leads
Cause product quality and serious problems occur, even because flow error causes product rejection.
Content of the invention
The flow titration that the technical problem to be solved is to provide a kind of flow pump different liquids is demarcated
Method, utilizes this method can implement the flow calibration of flow pump for different liquids, improves flow pump not
With the measuring accuracy under liquid, thus ensure that the quality preparing product through flow pump liquid.
For solving above-mentioned technical problem, the flow titration scaling method of inventive flow pump different liquids include as
Lower step:
Step one, by flow pump flow set reset, flow pump is set as the minimum discharge of 1ml/min, mark
Flow pump delivery outlet is located at by quasi-measuring cup, stops after starting flow pump 10min, and in standard measuring cup, liquid should be
10ml；
Liquid scale in step 2, observation caliber measuring cup, if scale value and 10ml error are more than 10%, then
Repeat step one after flow pump rotating speed is reduced by 10%, until standard measuring cup liquid scale value and 10ml error
Less than 10%；
Step 3, the quality calculating 10ml liquid according to liquid specific gravity, if liquid specific gravity is P, then 10ml
The quality of liquid is 10P；
Step 4, restart flow pump, the standard measuring cup emptying is positioned over the electronics sky of 0.1mg precision
On Ping, liquid injects standard measuring cup, observes electronic balance indicated value, and indicated value should be 10P, such as electronics sky
Flat indicated value error is more than 1%, then finely tune flow pump rotating speed, until electronic balance indicated value is 10P ± 1%；
Step 5, the maximum stream flow that flow pump is set as 10ml/min, stop after starting flow pump 1min
Only, being positioned over the standard measuring cup emptying on the electronic balance of 0.1mg precision, liquid injects standard measuring cup,
Observing electronic balance indicated value, indicated value should be 10P, if electronic balance indicated value error is more than 1%, then micro-
Adjust flow pump rotating speed, until electronic balance indicated value is 10P ± 1%.
Owing to the flow titration scaling method of inventive flow pump different liquids have employed technique scheme, i.e.
Flow pump flow set is set as the minimum discharge of 1ml/min after resetting, stop after starting flow pump 10min
Only, in standard measuring cup, liquid should be 10ml；As error is more than 10%, then adjust flow pump rotating speed until missing
Difference is less than 10%, calculates the quality of 10ml liquid, if liquid specific gravity is P, then 10ml according to liquid specific gravity
The quality of liquid is 10P；Restart flow pump, the standard measuring cup emptying is placed in the electronics sky of 0.1mg precision
On Ping, liquid injects standard measuring cup, observes electronic balance indicated value, and indicated value should be 10P, such as electronics sky
Flat indicated value error is more than 1%, then finely tune flow pump rotating speed, until electronic balance indicated value is 10P ± 1%；
Flow pump is set as the maximum stream flow of 10ml/min, stops after starting flow pump 1min, repeat to weigh
Liquid quality in standard measuring cup, as weighing error is more than 1%, then finely tunes flow pump rotating speed, until electronics sky
Flat indicated value is 10P ± 1%.This method can implement the flow calibration of flow pump for different liquids, improves
Measuring accuracy under different liquids for the flow pump, thus ensure that the quality preparing product through flow pump liquid.
Detailed description of the invention
The flow titration scaling method of inventive flow pump different liquids comprises the steps:
Step one, by flow pump flow set reset, flow pump is set as the minimum discharge of 1ml/min, mark
Flow pump delivery outlet is located at by quasi-measuring cup, stops after starting flow pump 10min, and in standard measuring cup, liquid should be
10ml；
Liquid scale in step 2, observation caliber measuring cup, if scale value and 10ml error are more than 10%, then
Repeat step one after flow pump rotating speed is reduced by 10%, until standard measuring cup liquid scale value and 10ml error
Less than 10%；
Step 3, the quality calculating 10ml liquid according to liquid specific gravity, if liquid specific gravity is P, then 10ml
The quality of liquid is 10P；
Step 4, restart flow pump, the standard measuring cup emptying is positioned over the electronics sky of 0.1mg precision
On Ping, liquid injects standard measuring cup, observes electronic balance indicated value, and indicated value should be 10P, such as electronics sky
Flat indicated value error is more than 1%, then finely tune flow pump rotating speed, until electronic balance indicated value is 10P ± 1%；
Step 5, the maximum stream flow that flow pump is set as 10ml/min, stop after starting flow pump 1min
Only, being positioned over the standard measuring cup emptying on the electronic balance of 0.1mg precision, liquid injects standard measuring cup,
Observing electronic balance indicated value, indicated value should be 10P, if electronic balance indicated value error is more than 1%, then micro-
Adjust flow pump rotating speed, until electronic balance indicated value is 10P ± 1%.
Through after this scaling method, the stated accuracy of flow pump is up to 1%, and it is dirty that it is applicable to liquids having different specific weight
The flow calibration of amount pump, it is only necessary to according to the quality of liquid in liquid specific gravity calculating unit volume, then in difference
Use electronic balance to implement to weigh under flow, by adjusting flow pump rotating speed, make weighting error control 1%
Within, thus reach the stated accuracy of flow pump 1%, it is ensured that the quality of product is prepared through flow pump liquid.
Claims (1)
1. the flow titration scaling method of a flow pump different liquids, it is characterised in that this scaling method comprises the steps:
Step one, resetting flow pump flow set, flow pump is set as the minimum discharge of 1ml/min, and flow pump delivery outlet is located at by standard measuring cup, stops after starting flow pump 10 min, and in standard measuring cup, liquid should be 10
ml；
Liquid scale in step 2, observation caliber measuring cup, as scale value and 10 ml errors are more than 10%, then repeats step one, until standard measuring cup liquid scale value is less than 10% with 10 ml errors after flow pump rotating speed being reduced by 10%；
Step 3, the quality calculating 10ml liquid according to liquid specific gravity, if liquid specific gravity is P, then the quality of 10ml liquid is 10P；
Step 4, restart flow pump, it is positioned over the standard measuring cup emptying on the electronic balance of 0.1mg precision, liquid injects standard measuring cup, observe electronic balance indicated value, indicated value should be 10P, as electronic balance indicated value error is more than 1%, then finely tune flow pump rotating speed, until electronic balance indicated value is 10P ± 1%；
Step 5, the maximum stream flow that flow pump is set as 10ml/min, stop after starting flow pump 1 min, it is positioned over the standard measuring cup emptying on the electronic balance of 0.1mg precision, liquid injects standard measuring cup, observing electronic balance indicated value, indicated value should be 10P, as electronic balance indicated value error is more than 1%, then finely tune flow pump rotating speed, until electronic balance indicated value is 10P ± 1%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210173157.5A CN103452828B (en) | 2012-05-30 | 2012-05-30 | The flow titration scaling method of flow pump different liquids |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210173157.5A CN103452828B (en) | 2012-05-30 | 2012-05-30 | The flow titration scaling method of flow pump different liquids |
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| CN103452828A CN103452828A (en) | 2013-12-18 |
| CN103452828B true CN103452828B (en) | 2016-10-05 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152394B (en) * | 2017-04-17 | 2018-11-20 | 深圳市恒永达科技有限公司 | A kind of constant displacement pump Accuracy Assessment and system |
| CN116146445B (en) * | 2022-07-12 | 2024-03-19 | 上海奔曜科技有限公司 | Calibration method of injection pump in robot workstation and robot workstation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4432230A (en) * | 1982-05-25 | 1984-02-21 | Stahler John A | Method and apparatus for calibrating pumps |
| CN87201726U (en) * | 1987-01-23 | 1987-10-14 | 沈阳工业大学 | New-type effective flow-calibrating device |
| EP0323205A1 (en) * | 1987-12-31 | 1989-07-05 | Nomix-Chipman Limited | Apparatus for delivering a liquid |
| CN101556181A (en) * | 2009-05-20 | 2009-10-14 | 西安东风机电有限公司 | Composite static start-stop method mass flowmeter calibration system |
| CN201569477U (en) * | 2009-12-25 | 2010-09-01 | 山东建筑大学 | Small measuring vessel automatic measurement calibration device |
| CN201740573U (en) * | 2010-07-14 | 2011-02-09 | 北京中水科水电科技开发有限公司 | Novel flow calibrating device adopting mass method |
-
2012
- 2012-05-30 CN CN201210173157.5A patent/CN103452828B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4432230A (en) * | 1982-05-25 | 1984-02-21 | Stahler John A | Method and apparatus for calibrating pumps |
| CN87201726U (en) * | 1987-01-23 | 1987-10-14 | 沈阳工业大学 | New-type effective flow-calibrating device |
| EP0323205A1 (en) * | 1987-12-31 | 1989-07-05 | Nomix-Chipman Limited | Apparatus for delivering a liquid |
| CN101556181A (en) * | 2009-05-20 | 2009-10-14 | 西安东风机电有限公司 | Composite static start-stop method mass flowmeter calibration system |
| CN201569477U (en) * | 2009-12-25 | 2010-09-01 | 山东建筑大学 | Small measuring vessel automatic measurement calibration device |
| CN201740573U (en) * | 2010-07-14 | 2011-02-09 | 北京中水科水电科技开发有限公司 | Novel flow calibrating device adopting mass method |
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|---|---|
| CN103452828A (en) | 2013-12-18 |
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