CN203337555U - Automatic acid value tester - Google Patents
Automatic acid value tester Download PDFInfo
- Publication number
- CN203337555U CN203337555U CN2013203697831U CN201320369783U CN203337555U CN 203337555 U CN203337555 U CN 203337555U CN 2013203697831 U CN2013203697831 U CN 2013203697831U CN 201320369783 U CN201320369783 U CN 201320369783U CN 203337555 U CN203337555 U CN 203337555U
- Authority
- CN
- China
- Prior art keywords
- conical flask
- heating furnace
- acid
- utility
- automatic acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses an automatic acid value tester device. The automatic acid value tester device comprises a display control host computer, a data printer, a distillation system, an indicator injection system, a test sample injection system, a neutralization titration system, a transfer system, a heating furnace, a color sensor, a conical flask and a device outer housing, wherein the distillation system, the indicator injection system, the test sample injection system, the neutralization titration system, the transfer system, the heating furnace, the color sensor, the conical flask, the display control host computer and the data printer are arranged in the device outer housing. The automatic acid value tester device disclosed by the utility model can be implemented in strict accordance with the GB/T264-1983 Standards, and can be used for intuitively and automatically completing the test, so that the temperature of samples in a test process is stable, errors caused by dissolving phenols, aldehydes and the like are reduced, the interferences caused by residual test samples in a pipeline subjected to suction type detection are avoided, and the accuracy of the tested results is improved.
Description
Technical field
The utility model relates to analytical instrument manufacturing technology field, relates in particular to a kind of automatic acid Meter device.
Background technology
The transformer oil that electric system adopts is the important insulating medium of power supply equipment.Oil for electric power is under the effect of oxygen, heat and electric field, aging gradually in keeping and meeting in service, and oily middle acid substance is increased.Acidic materials are etching apparatus not only, also can improve oily electric conductivity simultaneously, reduces oily insulating property, finally causes the power equipment lost of life, causes huge loss.For assurance equipment normally moves, extend its serviceable life, just must carry out strict monitoring and maintenance to oil for electric power.The index that reflects oily middle acid substance content---acid number is main monitoring parameter, and in China's standard and international standard, acid number all is listed in must survey parameter.
The automatic acid Meter is a kind of analytical instrument of automatic measurement acid value of transformer oil.On market, the general rotating disc type that adopts is placed oil sample to be measured, indicator and the potassium hydroxide solution that has added extractant, by photoresistance, judges change color, can not detect the darker oil sample of color; Another kind of scheme adopts rotating disc type to place 95% ethanol, oil sample to be measured, indicator and potassium hydroxide solution, ethanolic solution adds hot reflux through boiling, but carry out the color judgement by the sample after the suction titration, therefore ducted residual sample can affect the indicator color of next time drawing sample, affects result and judges.Above scheme is not all strictly followed the GB/T264-1983 standard.
It is below the method for the measurement petroleum products acid number of GB/T264-1983 standard code.
This method is applicable to measure the acid number of petroleum products.In and the required potassium hydroxide milligram number of 1 gram petroleum products be called acid number.
1. method summary
This method is extracted the acid ingredient in sample out with boiling ethanol, then with potassium hydroxide-ethanol solution, carries out titration.
2. instrument
Conical flask: 250 or 300 milliliters.
Spherical reflux condensing tube: be about 300 millimeters.
Microburette: 2 milliliters, calibration is 0.02 milliliter.
Electric hot plate or water-bath.
3. reagent
Potassium hydroxide: secondary is pure, is made into the 0.05N potassium hydroxide-ethanol solution.
95% ethanol: analyze pure.
Alkali blue 6B: during configuration solution,
4. test procedure
Take sample 8-10 gram with clean, dry conical flask, claim accurate to 0.2 gram.
In the clean anhydrous conical flask of another, add 50 milliliters of 95% ethanol, load onto reflux condensing tube.Under constantly shaking, 95% ethanol is boiled 5 minutes, remove and be dissolved in the interior phenols of 95% ethanol, aldehydes etc.
Add 0.5 milliliter of alkali blue 6B (or cresol red) solution in 95% ethanol boiled, while hot with the neutralization of 0.05N potassium hydroxide-ethanol solution, until solution becomes light red (or becoming aubergine by yellow) by blueness.Just presented the ethanol of light red (or aubergine) to not neutralizing, if in the time of will measuring the less sample of acid number with it, can be in advance with some, 0.05N watery hydrochloric acid, in and ethanol just to subacidity, and then by above-mentioned steps neutralization until solution becomes light red (or having yellow to become aubergine) by blueness.
95% ethanol injection neutralized is equipped with in the conical flask that weighs up sample, and loads onto reflux condensing tube.Under constantly shaking, solution is boiled 5 minutes.
In the mixed liquor of boiling pot, add alkali blue 6B (or cresol red) solution of 0.5 milliliter, use while hot the titration of 0.05N potassium hydroxide-ethanol solution, until 95% alcohol layer becomes light red (or becoming aubergine by yellow) by blueness.
For in titration end-point, not presenting the sample of redness (or aubergine), when the original color that allows titration to reach mixed liquor starts to change significantly as terminal.
In each titration process, from conical flask stop heating reaching terminal institute elapsed time should be over 3 minutes.
5. calculate
The acid number X of sample, the numeric representation with milligram KOH/ gram is calculated as follows:
T=56.1 * N............ formula 2
In formula: V---the volume of the potassium hydroxide-ethanol solution that consumes during titration, milliliter;
The weight of G---style, gram;
T---the titer of kali ethanolic solution, milligram KOH/ milliliter;
56.1---the gram equivalent of potassium hydroxide;
The N of N---potassium hydroxide-ethanol solution, N.
6. precision
Carry out the reliability (95% confidence level) of judged result by following regulation.
Repeatability
The difference of two results of same operator's replication should not surpass following numerical value:
| Scope, milligram KOH/ gram | Repeatability, milligram KOH/ gram |
| 0.00-0.1 | 0.02 |
| Be greater than 0.1-0.5 | 0.05 |
| Be greater than 0.5-1.0 | 0.07 |
| Be greater than 1.0-2.0 | 0.10 |
Repeatability
The difference of two results that proposed by two laboratories should not surpass following numerical value:
| Scope, milligram KOH/ gram | Repeatability, milligram KOH/ gram |
| 0.00-0.1 | 0.04 |
| Be greater than 0.1-0.5 | 0.10 |
| Be greater than 0.5-1.0 | 15% of mean value |
| Be greater than 1.0-2.0 | 15% of mean value |
7. report
Get the arithmetic mean of two results of replication, as the acid number of sample.
Therefore, need to provide a kind of automatic acid Meter device to address the above problem.
The utility model content
In order to address this problem, the utility model discloses a kind of automatic acid Meter device, described automatic acid Meter device comprises the demonstration main control system, printer, Distallation systm, the indicator injected system, the sample injected system, the acid-base titration system, transfer system, heating furnace, color sensor, conical flask and crust of the device, described Distallation systm, described indicator injected system, described sample injected system, described acid-base titration system, described transfer system, described heating furnace, described color sensor, described conical flask, described demonstration main control system and described printer all are arranged in described crust of the device.
Preferably, described heating furnace is arranged in described transfer system, is provided with described conical flask on described heating furnace, in the bottom of described conical flask, is provided with described color sensor.
Preferably, described transfer system is delivered to described conical flask in described Distallation systm, described indicator injected system, described sample injected system and described acid-base titration system successively.
Automatic acid Meter device of the present utility model, can be in strict accordance with the GB/T264-1983 standard implementation, automatically completes to visualize test.Pack in the transfer system method of heating furnace of employing, guaranteed the temperature stabilization of sample in the process of the test, reduced the error that the dissolvings such as phenols, aldehydes cause; Adopted color sensor identification indicator color, Direct Recognition indicator color, stopped the impact that in pipeline that suction-type detects, residual sample causes, and improved the accuracy of test findings.
Introduced the concept of a series of reduced forms in the utility model content part, this will further describe in the embodiment part.The utility model content part does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to determine technical scheme required for protection.
Below in conjunction with accompanying drawing, describe advantage of the present utility model and feature in detail.
The accompanying drawing explanation
Fig. 1 is the schematic diagram according to the automatic acid Meter device of an embodiment of the utility model.
Embodiment
In the following description, having provided a large amount of concrete details understands the utility model more thoroughly in order to provide.Yet, it will be apparent to one skilled in the art that the utility model can be implemented without one or more these details.In other example, for fear of obscuring with the utility model, for technical characterictics more well known in the art, be not described.
In order thoroughly to understand the utility model, detailed structure will be proposed in following description.Obviously, execution of the present utility model is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present utility model is described in detail as follows, yet, except these are described in detail, the utility model can also have other embodiments.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
With reference to figure 1, show the automatic acid Meter device according to an embodiment of the utility model.Automatic acid Meter device of the present utility model comprises demonstration main control system 1, printer 2, Distallation systm 3, indicator injected system 4, sample injected system 5, acid-base titration system 6, transfer system 7, heating furnace 8, color sensor 9, conical flask 10 and crust of the device 11.Distallation systm 3, indicator injected system 4, sample injected system 5, acid-base titration system 6, transfer system 7, heating furnace 8, color sensor 9 and conical flask 10, demonstration main control system 1 and printer 2 all are arranged in crust of the device 11.
Above-mentioned heating furnace 8 is arranged in transfer system 7, is provided with conical flask 10 on heating furnace 8, in the bottom of conical flask 10, is provided with color sensor 9.Above-mentioned transfer system 7 can be delivered to conical flask 10 in Distallation systm 3, indicator injected system 4, sample injected system 5 and acid-base titration system 6 successively according to controlling.
In the test preparatory stage, add 50 milliliters of 95% ethanol in clean dry conical flask, be placed on the heating furnace of transfer system.Take sample 8～10 grams with clean, dry injector, claim standard to 0.2 gram, be installed in the sample injected system.Draw appropriate alkali blue 6B solution with clean, dry injector, be installed in the indicator injected system.Draw appropriate 0.05N potassium hydroxide-ethanol solution with clean, dry injector, be installed in the acid-base titration system.
In experimental stage, select starting characteristics test on the demonstration main control system, automatically complete boiling reflux, inject the processes such as indicator, neutralization, injection oil sample to be measured, acid-base titration, result of calculation.After starting characteristics test, transfer system is transplanted on conical flask in Distallation systm, and heating furnace starts heating; At the ethanolic solution boiling reflux, after 5 minutes, transfer system is transplanted on conical flask in the indicator injected system, and heating furnace reduces power, stable by the test constantly maintenance specimen temperature of temperature sensor; Splash into indicator, transfer system is transplanted on conical flask in the acid-base titration system; Under the cooperation of color sensor and acid-base titration system, until solution becomes light red by blueness, transfer system is transplanted on the sample injected system by conical flask; Automatically inject the 9mL sample to be tested, transfer system is transplanted on the acid-base titration system by conical flask; Automatically carry out titration, until 95% alcohol layer becomes light red by blueness, change color is identified by color sensor, and the titer of potassium hydroxide is used photoelectric sensor to measure injector and completes.Finally by the formula 1 in background technology and the automatic result of calculation of formula 2 printing.
Automatic acid Meter device of the present utility model, can be in strict accordance with the GB/T264-1983 standard implementation, automatically completes to visualize test.Pack in the transfer system method of heating furnace of employing, guaranteed the temperature stabilization of sample in the process of the test, reduced the error that the dissolvings such as phenols, aldehydes cause; Adopted color sensor identification indicator color, Direct Recognition indicator color, stopped the impact that in pipeline that suction-type detects, residual sample causes, and improved the accuracy of test findings.
The utility model is illustrated by above-described embodiment, but should be understood that, above-described embodiment is the purpose for giving an example and illustrating just, but not is intended to the utility model is limited in described scope of embodiments.It will be understood by those skilled in the art that in addition; the utility model is not limited to above-described embodiment; can also make more kinds of variants and modifications according to instruction of the present utility model, these variants and modifications all drop in the utility model scope required for protection.Protection domain of the present utility model is defined by the appended claims and equivalent scope thereof.
Claims (3)
1. an automatic acid Meter device, it is characterized in that, described automatic acid Meter device comprises the demonstration main control system, printer, Distallation systm, the indicator injected system, the sample injected system, the acid-base titration system, transfer system, heating furnace, color sensor, conical flask and crust of the device, described Distallation systm, described indicator injected system, described sample injected system, described acid-base titration system, described transfer system, described heating furnace, described color sensor, described conical flask, described demonstration main control system and described printer all are arranged in described crust of the device.
2. according to automatic acid Meter device claimed in claim 1, it is characterized in that, described heating furnace is arranged in described transfer system, is provided with described conical flask on described heating furnace, in the bottom of described conical flask, is provided with described color sensor.
3. according to automatic acid Meter device claimed in claim 2, it is characterized in that, described transfer system is delivered to described conical flask in described Distallation systm, described indicator injected system, described sample injected system and described acid-base titration system successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203697831U CN203337555U (en) | 2013-06-26 | 2013-06-26 | Automatic acid value tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203697831U CN203337555U (en) | 2013-06-26 | 2013-06-26 | Automatic acid value tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203337555U true CN203337555U (en) | 2013-12-11 |
Family
ID=49706224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203697831U Expired - Fee Related CN203337555U (en) | 2013-06-26 | 2013-06-26 | Automatic acid value tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203337555U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007113A (en) * | 2014-06-18 | 2014-08-27 | 泸州品创科技有限公司 | Method for detecting acidity of distilled grain |
| CN104730202A (en) * | 2015-04-13 | 2015-06-24 | 菏泽学院 | Automatic acid-base titration instrument |
| CN105158242A (en) * | 2015-08-26 | 2015-12-16 | 常州大学 | Sulfur detector with methyl orange indicating function |
| CN114019091A (en) * | 2021-11-09 | 2022-02-08 | 西安热工研究院有限公司 | Acid value detection method for synthetic lubricating oil |
-
2013
- 2013-06-26 CN CN2013203697831U patent/CN203337555U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104007113A (en) * | 2014-06-18 | 2014-08-27 | 泸州品创科技有限公司 | Method for detecting acidity of distilled grain |
| CN104007113B (en) * | 2014-06-18 | 2016-06-08 | 泸州品创科技有限公司 | The detection method of grain unstrained spirits acidity |
| CN104730202A (en) * | 2015-04-13 | 2015-06-24 | 菏泽学院 | Automatic acid-base titration instrument |
| CN105158242A (en) * | 2015-08-26 | 2015-12-16 | 常州大学 | Sulfur detector with methyl orange indicating function |
| CN114019091A (en) * | 2021-11-09 | 2022-02-08 | 西安热工研究院有限公司 | Acid value detection method for synthetic lubricating oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203337555U (en) | Automatic acid value tester | |
| CN102175719B (en) | CCD visualization self-ignition point tester | |
| CN104535421B (en) | Detecting instrument and method for performance of cross-linked polymer gel | |
| CN204086149U (en) | Water soluble acid tester | |
| CN108387678A (en) | It is a kind of measure acid value of lubricating oil thermometric titration and its application | |
| CN206788129U (en) | A kind of automatic acid value tester of oil product | |
| CN206431132U (en) | A kind of water in oil analyzer calibrating installation | |
| CN203732397U (en) | Rapid emulsion explosive density detector | |
| CN206657012U (en) | Based on the oil dissolved gas monitoring device field test system for comparing analysis | |
| CN203148516U (en) | Trace reagent liquid level detecting device for immunohistochemical stainer | |
| CN103163288A (en) | Optimized automation-adaptable platelet aggregation function inspection and analysis method | |
| CN102507914B (en) | Method for checking blank of cup of biochemical analysis meter | |
| CN201917543U (en) | CCD (charge coupled device) visual spontaneous ignition temperature tester | |
| CN211603935U (en) | Transformer temperature controller on-site detection device | |
| CN202281755U (en) | Automatic detection device for distillation test process | |
| CN106596902A (en) | Portable full-automatic apparatus for testing hydrogen sulfide in petroleum products | |
| CN203688394U (en) | Adsorbed gas analyzer | |
| CN208366501U (en) | A kind of experiment gauge check thermometer | |
| CN114019091A (en) | Acid value detection method for synthetic lubricating oil | |
| CN103162770B (en) | Method and device of trace reagent liquid level detection used for an immunohistochemical staining machine | |
| CN206431133U (en) | Portable type full-automatic oil product hydrogen sulfide detector | |
| CN201203610Y (en) | Device for determining turbine oil transformer oleic acid value | |
| CN211374410U (en) | Multifunctional liquid identification container | |
| CN211348185U (en) | Water quality monitoring device for oil chemical examination | |
| CN111208131B (en) | Array type high-precision pH test paper based on ink-jet printing technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190109 Address after: 132013 Pioneer Park C, Jilin High-tech Zone, Jilin Province Patentee after: Jilin Rongji technology limited liability company Address before: 132000 Public Security Hutong 2-7-142, Chuanying District, Jilin Province Patentee before: Zhang Yanxia |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20210626 |