Diesel will contain some water, not artificial, not deliberately put into the business.
Tell us the reasons why diesel has water. When you know these reasons, you will understand the above sentence
Why do you say that?
(a) Diesel oil has the reason of water
1. Technical reasons.
From a technical point of view, all oil tankers, during the process of receiving and discharging,
At the end of the collection line there is water ejecting, so there is water in the tank and a water cushion, that is
There is water in the bottom of every tank in the oil depot.
2. Time.
Sometimes the resources are tight, the oil precipitation time is not long enough or the tank can be transferred
The process contains trace amounts of water.
3. Properties of oil products.
Petroleum is mainly composed of alkanes, cycloalkanes, alkenes and aromatic hydrocarbons.
Aromatic hydrocarbons in oil products have a strong water absorption, easy to absorb water from the air.
4. Physical reasons.
By the effect of heat expansion and cold contraction, the same can absorb the moisture in the air.
Diesel has water in it, and if it's just a little bit, it starts, it doesn't make a lot of difference;
If there is more water, it will not work, affecting the smooth idle speed and acceleration capacity, mainly by burning the engine, so it is necessary to detect whether the high water content exceeds the standard, and stipulate that the water content is not more than 0.03%.
SH103 trace moisture tester adopts the principle of Karl Feshocoulomb titration and adopts microcomputer automatic control. Compared with similar products at home and abroad, it has the advantages of high sensitivity, fast electrolysis speed, short balance time, accurate deduction of blank, accurate and reliable analysis results, etc.
It is a high quality analytical instrument for petroleum, chemical industry, electric power, environmental protection, medicine, scientific research and other departments.
The instrument adopts 32-bit embedded microprocessor as the main control core and is embedded in the mini-operating system.
The instrument has constant current detection, double circuit balance titration function;
The electrolytic cell adopts waterproof sealing design;
Support multiple calculation formulas, in line with the standard GBT11133 and ASTMD 0304.
Technical parameters:
Carl, -- Hugh coulomb's law, to determination of trace moisture of different materials, is one of the most reliable method, in line with the GB/T11133, this trace moisture meter and the success of the application of this method, and used the micro computer control, its fast analysis speed, high precision, Chinese LCD color screen display, automatic printing, double CPU design, blank current deducted automatically and instrument fault self-diagnosis function, menu selection, and other functions, to achieve a better operation and use, has simple operation, automatic analysis instrument.
It is an instrument for moisture analysis of oil products
Display mode: color touch screen display
Titration method: Microcomputer-based electric quantity titration
Output mode: automatic calculation, output UG, PPM and %
Apparatus needed for experiment
1.SH103 automatic micro moisture meter, developed and produced by Shandong Shengtai Instrument Co., LTD.
2. In accordance with GB/T11133.
Experimental steps:
Preparation work
1. After unpacking the instrument, please count the accessories according to the packing list. If there is any damage, please contact our company.
2. The instrument should be handled vertically. The tilt Angle should not exceed 30 degrees along the height of the instrument.
3. Connect the power supply of the instrument to the socket with a capacity of 220V/10A or above, and pay attention to having a good grounding wire.
Ii. Experiment process
1. Sampling: Flush the 1ml syringe with the sample to be tested.
2. Sample injection and determination
After sampling, click the "Start" button, and the instrument shows the status of "titration". The sample is injected into the anode room through the sample injection cock, and the titration starts automatically, with the water value increasing continuously.
Titration is finished, the buzzer rings, status information prompt: determination is finished.
When the printer is enabled, the measurement results will be printed.
If you want to change the calculation formula or relevant parameters in the formula before titration is finished, you can click "Set" - "Formula Selection" (- "Formula Parameter Setting") before titration is finished.
1. The device will enter the test interface automatically within a few seconds after starting the machine:
If you want to switch electrolysis current or start and stop stirring, click the "Electrolysis" and "Stir" buttons.
Click "Start" and the state of "Titration" will be displayed. The sample can be injected through the injector and the instrument will titrate automatically.
After titration, the measured water value is displayed and the measurement result is printed.
If you need to change the calculation formula, click the "Settings" button to enter the Settings menu interface
(1) Formula selection
Under this interface, you can click the formula to select to confirm.
Click the "Formula Parameter Setting" button in the upper right to enter the parameter setting interface of the selected formula.
The interface explains the parameters used in each formula:
Formula 1: F1=DT/(V*SG) PPM Measurement results /(sample volume × specific gravity)
Formula 2: F2=DT/(W-W) PPM Measurement results /(total sample weight -- tare weight)
Formula 3: F3=DT/W 'PPM measurement result/sample weight
Formula 4: F4=DT/(W/K) PPM Measurement results /(sample weight/dilution factor)
Formula 5: F5=DT ug measurement results (measured water value)
Where, DT -- measured water value, unit: UG;
V -- Sample volume, unit: ml;
SG -- sample density, g/ mL;
W -- Total weight of the sample, unit: mg;
W -- Tare weight in mg;
W '-- sample weight, unit: mg;
K - dilution factor.
For more information, please contact: 0531-85919987 Shandong Shengtai Instrument Co., LTD
(2) Test records
This interface is the test data recording interface, and you can view the test result data recording of the previous test.
Click "up", "down" to scroll up or down the record.
Click "Clear" to pop up the prompt box of empty test record. Click "OK" in the prompt box to delete all data records.
(3) Print setting
This interface allows you to select Settings to enable or disable printers.
When the test is started, the test results will be printed automatically after the test is completed.
Do not print test results when disabled.
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