CN205049514U - Ka erfeixiu coulometry crude oil, moisture measuring device of tar - Google Patents
Ka erfeixiu coulometry crude oil, moisture measuring device of tar Download PDFInfo
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- CN205049514U CN205049514U CN201520846405.7U CN201520846405U CN205049514U CN 205049514 U CN205049514 U CN 205049514U CN 201520846405 U CN201520846405 U CN 201520846405U CN 205049514 U CN205049514 U CN 205049514U
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- metal bath
- coulometry
- crude oil
- gasification unit
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Abstract
The utility model discloses a ka er coulometry crude oil is stopped to the expense, the moisture measuring device of tar involves electronics chemical analysis instrument, is to comprise nitrogen gas storage tank, step motor, needle valve, mass flow meter, solenoid valve, metal bath gasification unit, card formula coulometry electrolytic bath and the control unit, and the valve rod of needle valve is connected with step motor's power output shaft transmission, the pipeline hookup in proper order of nitrogen gas storage tank, needle valve, mass flow meter, solenoid valve, metal bath gasification unit and ka shi coulometry electrolytic bath, the control unit links with step motor, mass flow meter, solenoid valve, metal bath gasification unit and ka shi coulometry electrolytic bath circuit respectively. The utility model discloses a method be not direct inject the sample into electrolytic bath in, but heat the sample with metal bath gasification unit, in moisture content blows to the electrolytic bath in with the sample with high -purity nitrogen gas, avoided the impurity in crude oil or the tar to form the oil film parcel to electrolysis electrode and measuring electrode, make the shortcoming of reagent inefficacy, improved the utilization ratio of reagent.
Description
Technical field
The utility model relates to electron chemistry analytical instrument, refers more particularly to and is applicable to crude oil, a kind of Karl Fischer coulometric determination crude oil of Tar use, tar water-containing measuring instrument.
Background technology
What traditional crude-oil water-content determiner adopted is the way of distillation, needs to distill a lot of samples, condensation, recovery collect moisture content, measure the moisture content in crude oil or tar.Process of the test is more loaded down with trivial details, and the result of metering, because be the graduated cylinder metering with 5 milliliters, so result is rough calculation, is not very accurate.Since Karl Fischer coulometric determination trace water analyzer occurs, people carry out determination of moisture according to GB/T11146 and crude oil moisture determination method Karl_Fischer method standard again, directly crude oil or tar are injected in electrolytic cell bottle in this standard, electrolytic solution and sample is made to participate in reacting, thus calculating water-retention value, but due to crude oil or tarry impurities many, oil film parcel is formed to electrolysis electrode and potential electrode, reagent was easily lost efficacy.
Summary of the invention
The utility model is exactly to overcome the problems referred to above, provides a kind of Karl Fischer coulometric determination crude oil, tar water-containing measuring instrument.
A kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument, be made up of nitrogen storage tank, stepper motor, needle-valve, mass flowmeter, solenoid valve, metal bath gasification unit, cassette coulometry electrolytic cell and control module, the valve rod of needle-valve is connected with the pto of stepper motor, and nitrogen storage tank, needle-valve, mass flowmeter, solenoid valve, metal bath gasification unit and cassette coulometry electrolytic cell successively pipeline connect; Control module connects with stepper motor, mass flowmeter, solenoid valve, metal bath gasification unit and cassette coulometry electrolytic cell circuit respectively.
As further improvement of the utility model, the top of metal bath gasification unit is provided with sample injection port, bottom is provided with nitrogen inlet, inside is provided with metal bath heating module; Nitrogen inlet connects with electromagnetic valve pipeline, and metal bath heating module connects with control module circuit.
As further improvement of the utility model, cassette coulometry electrolytic cell comprises electrolytic cell bottle, electrolysis electrode and potential electrode, electrolysis electrode and potential electrode are all fixed in electrolytic cell bottle, Liquid sample introduction mouth, gas access and gas vent is provided with above this electrolytic cell bottle, gas access connects with metal bath gasification unit pipeline, and electrolysis electrode, potential electrode all connect with control module circuit.
As further improvement of the utility model, gas vent is connected with drying tube.
As further improvement of the utility model, nitrogen storage tank, stepper motor, needle-valve, mass flowmeter, solenoid valve, metal bath gasification unit and control module are all located in a casing, this casing is provided with display, and this display connects with control module circuit.
A kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument, the method adopted is not directly inject in electrolytic cell by sample, but adopt metal bath gasification unit to be heated by sample, with high pure nitrogen, the moisture content in sample is blown in electrolytic cell, the impurity avoided in crude oil or tar forms oil film parcel to electrolysis electrode and potential electrode, make the shortcoming that reagent lost efficacy, and improve the utilization factor of reagent.
Accompanying drawing explanation
Accompanying drawing 1 ~ accompanying drawing 2 is the structural drawing of a kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument;
Accompanying drawing 3 is the structural drawing of metal bath gasification unit of a kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument;
Accompanying drawing 4 is the structural drawing of casing of a kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument;
Accompanying drawing 5 is the module map of a kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument.
Embodiment
Below in conjunction with accompanying drawing to a kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument, be described further:
A kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument are made up of nitrogen storage tank 1, stepper motor 2, needle-valve 3, mass flowmeter 4, solenoid valve 5, metal bath gasification unit 6, cassette coulometry electrolytic cell 7 and control module 8.
Wherein, the valve rod of needle-valve 3 is connected with the pto of stepper motor 2, and control module 8 controls the gas flow of needle-valve 3 by control step motor 2.
In this device, nitrogen storage tank 1, needle-valve 3, mass flowmeter 4, solenoid valve 5, metal bath gasification unit 6 and cassette coulometry electrolytic cell 7 successively pipeline connect, circuit ingredient is connected with stepper motor 2, mass flowmeter 4, solenoid valve 5, metal bath gasification unit 6 and cassette coulometry electrolytic cell 7 circuit respectively by control module 8 to form, metal bath gasification unit 6, the top of metal bath gasification unit 6 is provided with sample injection port 9, bottom is provided with nitrogen inlet 10, inside is provided with metal bath heating module; Nitrogen inlet 10 connects with solenoid valve 5 pipeline, and metal bath heating module connects with control module 8 circuit.
Namely cassette coulometry electrolytic cell 7 is converted by ready-made karl Fischer micro-water analyzer, such as use the WA-1C type micro-water analyzer of acrylonitrile by Coulometry moisture, it mainly comprises electrolytic cell bottle 12, electrolysis electrode 13 and potential electrode 14, electrolysis electrode 13 and potential electrode 14 are all fixed in electrolytic cell bottle 12, Liquid sample introduction mouth 15 is provided with above this electrolytic cell bottle 12, gas access 16 and gas vent 18, gas access 16 connects with metal bath gasification unit 6 pipeline, for passing into the mixed gas of nitrogen and steam, gas vent 18 is connected with drying tube 19, air for unnecessary nitrogen and former electrolytic cell bottle 12 inside is discharged, electrolysis electrode 13, potential electrode 14 all connects with control module 8 circuit.
This device outside is provided with casing 11, casing 11 is installed display 17, and is provided with external keyboard, and keyboard and display 17 connect with control module 8 circuit respectively.
A kind of Karl Fischer coulometric determination crude oil of the present utility model, tar water-containing measuring instrument, its concrete using method is as follows:
Nitrogen storage tank 1 is for storing and discharging the nitrogen dewatered, nitrogen is successively by needle-valve 3 and mass flowmeter 4, control module 8 is adjusted by the Real-Time Monitoring feedback of mass flowmeter 4 pairs of flows and then the flow of opening and closing degree to nitrogen of control needle-valve 3, nitrogen enters solenoid valve 5 after mass flowmeter 4, this solenoid valve 5 is T-valve, two outlet one is communicated with the nitrogen inlet 10 below metal bath gasification unit 6, another is provided with drain, when detection does not prepare completely or after completing, drain side opened by solenoid valve 5, nitrogen is discharged by drain.
Before carrying out determination of moisture work, in cassette coulometry electrolytic cell 7 and electrolysis electrode 13, inject the reagent mixed with the pyridine, methyl alcohol etc. that are filled with sulphuric dioxide by dominant iodine, then carry out self-inspection and demarcation.
Start instrument and wait for that in electrolytic cell 7, state reaches equilibrium state, makes metal bath gasification unit 6 reach preset temperature, after passing into nitrogen, controls needle-valve 3 make nitrogen flow rate reach setting value with stepper motor 2, take a certain amount of testing sample (crude oil or tar etc., 2g ~ 3g), inject metal bath gasification unit 6, in metal bath gasification unit 6 testing sample, moisture flashes off, keypad starts to analyze, switching solenoid valve 5 makes nitrogen be blown into metal bath gasification unit 6, drive aqueous vapor is blown into cassette coulometry electrolytic cell 7 li, until the measuring state limit-up of cassette coulometry electrolytic cell 7, switching solenoid valve 4 is to drain, guide unnecessary nitrogen to discharge and terminate to purge, electrolysis electrode 13 starts electrolysis, last control module 8 calculates water-retention value according to consumed electricity and is presented on display 17.
Claims (5)
1. a Karl Fischer coulometric determination crude oil, tar water-containing measuring instrument, by nitrogen storage tank (1), stepper motor (2), needle-valve (3), mass flowmeter (4), solenoid valve (5), metal bath gasification unit (6), cassette coulometry electrolytic cell (7) and control module (8) are formed, it is characterized in that the valve rod of needle-valve (3) is connected with the pto of stepper motor (2), nitrogen storage tank (1), needle-valve (3), mass flowmeter (4), solenoid valve (5), metal bath gasification unit (6) and cassette coulometry electrolytic cell (7) successively pipeline connect, control module (8) connects with stepper motor (2), mass flowmeter (4), solenoid valve (5), metal bath gasification unit (6) and cassette coulometry electrolytic cell (7) circuit respectively.
2. a kind of Karl Fischer coulometric determination crude oil according to claim 1, tar water-containing measuring instrument, is characterized in that the top of metal bath gasification unit (6) is provided with sample injection port (9), bottom is provided with nitrogen inlet (10), inside is provided with metal bath heating module; Nitrogen inlet (10) connects with solenoid valve (5) pipeline, and metal bath heating module connects with control module (8) circuit.
3. a kind of Karl Fischer coulometric determination crude oil according to claim 1, tar water-containing measuring instrument, it is characterized in that cassette coulometry electrolytic cell (7) comprises electrolytic cell bottle (12), electrolysis electrode (13) and potential electrode (14), electrolysis electrode (13) and potential electrode (14) are all fixed in electrolytic cell bottle (12), this electrolytic cell bottle (12) top is provided with Liquid sample introduction mouth (15), gas access (16) and gas vent (18), gas access (16) connects with metal bath gasification unit (6) pipeline, electrolysis electrode (13), potential electrode (14) all connects with control module (8) circuit.
4. a kind of Karl Fischer coulometric determination crude oil according to claim 3, tar water-containing measuring instrument, is characterized in that gas vent (18) is connected with drying tube (19).
5. a kind of Karl Fischer coulometric determination crude oil according to claim 1, tar water-containing measuring instrument, it is characterized in that nitrogen storage tank (1), stepper motor (2), needle-valve (3), mass flowmeter (4), solenoid valve (5), metal bath gasification unit (6) and control module (8) are all located in a casing (11), this casing (11) is provided with display (17), this display (17) connects with control module (8) circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520846405.7U CN205049514U (en) | 2015-10-29 | 2015-10-29 | Ka erfeixiu coulometry crude oil, moisture measuring device of tar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520846405.7U CN205049514U (en) | 2015-10-29 | 2015-10-29 | Ka erfeixiu coulometry crude oil, moisture measuring device of tar |
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| Publication Number | Publication Date |
|---|---|
| CN205049514U true CN205049514U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520846405.7U Active CN205049514U (en) | 2015-10-29 | 2015-10-29 | Ka erfeixiu coulometry crude oil, moisture measuring device of tar |
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| CN (1) | CN205049514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223256A (en) * | 2015-10-29 | 2016-01-06 | 大庆市日上仪器制造有限公司 | A kind of Karl Fischer coulometric determination crude oil, tar water-containing measuring instrument |
| CN110806440A (en) * | 2019-11-28 | 2020-02-18 | 云南电网有限责任公司电力科学研究院 | Coulomb method micro-water meter |
-
2015
- 2015-10-29 CN CN201520846405.7U patent/CN205049514U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223256A (en) * | 2015-10-29 | 2016-01-06 | 大庆市日上仪器制造有限公司 | A kind of Karl Fischer coulometric determination crude oil, tar water-containing measuring instrument |
| CN110806440A (en) * | 2019-11-28 | 2020-02-18 | 云南电网有限责任公司电力科学研究院 | Coulomb method micro-water meter |
| CN110806440B (en) * | 2019-11-28 | 2022-06-07 | 云南电网有限责任公司电力科学研究院 | Coulomb method micro-water meter |
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