CN217521069U - Electrode and sample cup device for oil product conductivity test - Google Patents
Electrode and sample cup device for oil product conductivity test Download PDFInfo
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- CN217521069U CN217521069U CN202221302913.5U CN202221302913U CN217521069U CN 217521069 U CN217521069 U CN 217521069U CN 202221302913 U CN202221302913 U CN 202221302913U CN 217521069 U CN217521069 U CN 217521069U
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Abstract
The utility model relates to an electrode and sample cup device for oil conductivity test, outer cup of sample and sample in the cup can dismantle through bottom screw thread and be connected fixedly, the inner wall of outer cup of sample with form annular container space in the sample between the outer wall of cup, the top of cup sets up the location counter bore in the sample, insert electrode assembly in the sample in the cup, electrode assembly includes insulating isolation sealing washer, inner electrode, outer electrode and temperature sensor, set up in the inner electrode temperature sensor, the inner electrode with set up between the outer electrode the insulating isolation sealing washer, the positioning disk is set for on the top of outer electrode, the positioning disk with location counter bore cooperation contact, the utility model discloses guarantee to participate in measuring sample volume unanimous all the time to stop the excessive risk that leads to secondary pollution of sample.
Description
Technical Field
The utility model relates to an electrode and sample cup device for oil conductivity test.
Background
The conductivity measurement principle is shown in the following graph: the method comprises the following steps of (1) containing a liquid sample to be detected by using a container with a certain capacity, inserting two parallel metal electrodes into the liquid sample, supplying power to the two metal electrodes (generally adopting alternating voltage), detecting the current generated in a circuit loop after the two metal electrodes apply voltage, outputting a signal to a calculating unit, and calculating the impedance between the two metal electrodes according to the conductance definition so as to further calculate the conductivity, wherein the formula is as follows:
wherein: g: conductance (unit: siemens), I: current (unit: ampere), U: voltage (unit: volt), δ: conductivity (unit: Siemens/m), L: conductor length (unit: meter), a: the sectional area (unit: square meter) of the conductor can be known from the above formula, and the measuring process and the measuring result have direct relations with the structural form and the material of the electrode, the length and the area of the electrode participating in the measurement, besides the relation with the circuit design parameters (the type and the size of the input voltage), the sampling loop and the like. The indexes of the size, the precision and the repeatability of the detection signal have great relation with the aspects.
In addition, there are many factors affecting the conductivity of oil, and besides the properties of oil (such as additive type, impurity content, etc.), the influence of temperature on the conductivity of oil is also large, and the influence degree of temperature on the conductivity of different kinds of solution samples is different.
At present, the oil conductivity measuring instrument is mainly divided into a plurality of types such as a handheld portable type and a laboratory desk type, and the like, and meets the use occasions of different occasions. The portable conductivity meter is used for on-site rapid measurement, and needs to measure oil samples taken out from production pipelines, oil tank trucks, oil depots and the like in real time.
The testing process of the portable conductivity tester is simply described as follows: and (3) taking a sufficient amount of oil sample to be measured by using a cleaning container, inserting a measuring electrode of the conductivity tester in a standby state into the sample, starting a measuring program, and finally obtaining a conductivity result. And if repeated measurement is needed, repeating the operation.
According to the measurement principle and the actual using process of the portable conductivity tester, the following problems and disadvantages mainly exist through analysis:
1. the depth of the measuring electrode immersed into the sample each time in the measuring process is difficult to ensure to be consistent.
2. The handheld conductivity measuring instrument cannot ensure that the angle of the immersed sample is consistent every time because no limit measure is provided.
3. The sample temperature cannot be measured in real time to eliminate the influence of the temperature on the conductivity.
4. The sample consumption is relatively large (about 100 ml).
5. The container for holding the sample to be measured of the handheld conductivity meter is required to be transparent and observable.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electrode and sample cup device for oil conductivity test guarantees to participate in the measuring sample volume unanimous all the time to stop the excessive risk that leads to secondary pollution of sample.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides an electrode and sample cup device for oil conductivity test which characterized in that: the sample outer cup and the sample inner cup are detachably connected and fixed through bottom threads, an annular accommodating space is formed between the inner wall of the sample outer cup and the outer wall of the sample inner cup, and a positioning counter bore is formed in the top end of the sample inner cup;
an electrode assembly is inserted in the sample inner cup, the electrode assembly is electrically connected with the portable conductivity tester, the electrode assembly comprises an insulating isolation sealing ring, an inner electrode, an outer electrode and a temperature sensor, the temperature sensor is arranged in the inner electrode, the inner electrode and the outer electrode are arranged between the insulating isolation sealing ring, a positioning disc is set at the top end of the outer electrode, and the positioning disc is in matched contact with the positioning counter bore.
The electrode and sample cup device for oil conductivity test, wherein: the sample inner cup is provided with a plurality of inner cup overflow holes for sample liquid to flow into the annular accommodating space, so that the risk of secondary pollution is avoided.
The electrode and sample cup device for oil conductivity test, wherein: the inner electrode, the outer electrode and the sample inner cup are coaxially parallel.
The utility model has the advantages that: the built-in temperature sensor of measuring electrode eliminates the influence of temperature to the measuring result, the sample cup adopts interior outer cup form, the uniformity problem of participating in measuring the sample volume is solved, unnecessary sample overflows to outer cup automatically, do not cause the sample outflow to pollute, cup volume and cooperation electrode volume set up in the sample, the consumption to the sample when reducing the analysis, set up the structure cooperation between sample cup and the electrode, guarantee the uniformity of electrode position, the volume of injecting into the sample can make when putting into the electrode spill over from the overflow hole by the sample can, needn't observe the position of electrode in the sample, the sample cup material need not transparently.
Drawings
FIG. 1 is a block diagram of an electrode and sample cup assembly for oil conductivity testing.
Description of reference numerals: 1-sample outer cup; 2-inner cup of sample; 3-inner cup overflow hole; 4-positioning the disc; 5-insulating isolation seal ring; 6-inner electrode; 7-an outer electrode; 8-temperature sensor.
Detailed Description
As shown in figure 1, the electrode and the sample cup device for testing the conductivity of the oil product are characterized in that an outer sample cup 1 and an inner sample cup 2 are detachably connected and fixed through bottom threads, an annular containing space is formed between the inner wall of the outer sample cup 1 and the outer wall of the inner sample cup 2, a positioning counter bore is arranged at the top end of the inner sample cup 2, and a plurality of inner cup overflow holes 3 are formed in the inner sample cup 2 and used for allowing sample liquid to flow into the annular containing space, so that the risk of secondary pollution is avoided.
Insert electrode assembly in the 2 interpolation of cup in the sample, electrode assembly is connected with portable conductivity apparatus electricity, electrode assembly is including insulating isolation sealing washer 5, inner electrode 6, outer electrode 7 and temperature sensor 8, set up in inner electrode 6 temperature sensor 8, inner electrode 6 with set up between the outer electrode 7 insulating isolation sealing washer 5, the top of outer electrode 7 sets for positioning disc 4, positioning disc 4 with location counter bore cooperation contact, inner electrode 6 outer electrode 7 reaches cup 2 is in coaxial parallel in the sample.
In the embodiment, a sample inner cup 2 is firstly placed in a sample outer cup 1, the sample inner cup 2 is fixedly connected with the sample outer cup 1 through threads at the bottom, a measured sample liquid is poured into the sample inner cup 2, an electrode assembly is inserted into the sample inner cup 2, the liquid level of the sample liquid rises and overflows through an inner cup overflow hole 3, the overflowed sample liquid flows into an annular accommodating space, the risk of secondary pollution is avoided, a positioning disc 4 on an outer electrode 7 is in matched contact with a positioning counter bore of the sample inner cup 2, an inner electrode 6, an outer electrode 7 and the sample inner cup 2 can be ensured to be in a coaxial and parallel state all the time, a temperature sensor 8 arranged in the inner electrode 6 is used for measuring the temperature of the sample liquid, the inner electrode 6 and the outer electrode 7 are respectively connected with two poles of a power supply, and an electric potential field is formed between the outer wall of the inner electrode 6 and the inner wall of the outer electrode 7, and completing the power supply and the loop measurement of the electrode.
The utility model has the advantages that;
the built-in temperature sensor of measuring electrode eliminates the influence of temperature to the measuring result, the sample cup adopts interior outer cup form, the uniformity problem of participating in measuring the sample volume is solved, unnecessary sample overflows to outer cup automatically, do not cause the sample outflow to pollute, cup volume and cooperation electrode volume set up in the sample, the consumption to the sample when reducing the analysis, set up the structure cooperation between sample cup and the electrode, guarantee the uniformity of electrode position, the volume of injecting into the sample can make when putting into the electrode spill over from the overflow hole by the sample can, needn't observe the position of electrode in the sample, the sample cup material need not transparently.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (3)
1. The utility model provides an electrode and sample cup device for oil conductivity test which characterized in that: the sample outer cup (1) and the sample inner cup (2) are detachably connected and fixed through bottom threads, an annular accommodating space is formed between the inner wall of the sample outer cup (1) and the outer wall of the sample inner cup (2), and a positioning counter bore is formed in the top end of the sample inner cup (2);
insert electrode assembly in cup (2) in the sample, electrode assembly is connected with portable conductivity apparatus electricity, electrode assembly is including insulating isolation sealing washer (5), inner electrode (6), outer electrode (7) and temperature sensor (8), set up in inner electrode (6) temperature sensor (8), inner electrode (6) with set up between outer electrode (7) insulating isolation sealing washer (5), the top of outer electrode (7) sets for positioning disc (4), positioning disc (4) with location counter bore cooperation contact.
2. The electrode and sample cup device for oil conductivity testing as claimed in claim 1, wherein: the sample inner cup (2) is provided with a plurality of inner cup overflow holes (3) for sample liquid to flow into the annular accommodating space, so that the risk of secondary pollution is avoided.
3. The electrode and sample cup device for oil conductivity testing as claimed in claim 1, wherein: the inner electrode (6), the outer electrode (7) and the sample inner cup (2) are coaxially parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221302913.5U CN217521069U (en) | 2022-05-27 | 2022-05-27 | Electrode and sample cup device for oil product conductivity test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221302913.5U CN217521069U (en) | 2022-05-27 | 2022-05-27 | Electrode and sample cup device for oil product conductivity test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217521069U true CN217521069U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221302913.5U Active CN217521069U (en) | 2022-05-27 | 2022-05-27 | Electrode and sample cup device for oil product conductivity test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217521069U (en) |
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2022
- 2022-05-27 CN CN202221302913.5U patent/CN217521069U/en active Active
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