CN201662418U - Water level electrode - Google Patents
Water level electrode Download PDFInfo
- Publication number
- CN201662418U CN201662418U CN2010201756422U CN201020175642U CN201662418U CN 201662418 U CN201662418 U CN 201662418U CN 2010201756422 U CN2010201756422 U CN 2010201756422U CN 201020175642 U CN201020175642 U CN 201020175642U CN 201662418 U CN201662418 U CN 201662418U
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- isolation end
- measuring junction
- extension line
- level electrode
- measuring
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a water level electrode, which comprises a common end, a measuring end and a measuring end outlet, and also comprises an isolating end positioned between the measuring end and the common end, a first insulator filled at the common end and the isolating end, and a second insulator filled at the isolating end and the measuring end. By applying the technical scheme, the water level electrode is also provided with the isolating end between the measuring end and the common end, the same voltage is connected at the isolating end and the measuring end, and a voltage difference is present between the voltage connected at the common end and the voltage connected at the measuring end. When the measured end is a water side, current flows out the measuring end, and the flowing current is heavy due to low water resistance value. When the measured end is an air side, current flows out of the isolating end, however, due to equal potential at the isolating end and the measuring end, the isolating end prevents the current flowing into the measuring end, and no current flow out of the measuring end. The scheme can accurately determine whether the measured end is arranged at the water side or the air side according to the current flowing out of the measuring end.
Description
Technical field
The utility model relates to field of measuring technique, more particularly, relates to a kind of level electrode.
Background technology
Utilizing electric contact point fluviograph to measure water level is present most widely used a kind of level measuring means, especially is used for the measurement of steam water-level in thermoelectric field.Electric contact point fluviograph is made up of electrode, measurement tube and secondary instrument, and electrode is fixed on to be measured on the tube, and is connected with secondary instrument.Secondary instrument judges that in the resistance that tested end presented electrode is positioned at water side or gas side by the electrode that receives, and calculates the water level value of tested end according to resistance.Therefore, electrode is as the extraction parts of water level information, and the structure of electrode and characteristics are vital to the performance of electric contact point fluviograph.
At present the electrode of using has only measuring junction and common port, and the water side of electrode in tested end is different with the resistance that gas side in the tested end is presented, and electrode is lower than the resistance that electrode is presented in the gas side in the resistance that the water side is presented.Electrode polluted or fouling after, the insulation resistance value of electrode reduces.When electrode was in the gas side, because insulation resistance value reduces, secondary instrument was judged as the water side with gas side mistake, caused the water level value mistake of the tested end that secondary instrument calculates simultaneously.Therefore, when electrode polluted or structure after, the insulation resistance reduction of electrode can cause misjudgment, and then causes the water level value miscount of tested end.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of level electrode, judge that according to the size of current that level electrode flows out tested end is water side or gas side, and then calculate the water level value of tested end according to current value, to solve in the prior art since electrode is polluted or fouling after, the insulation resistance of electrode reduces the misjudgment that is caused, and then causes the problem to the water level value miscount of tested end.
The utility model provides a kind of level electrode, comprises common port, measuring junction and measuring junction extension line, also comprises:
Isolation end between described measuring junction and described common port;
Be filled in first insulator of described common port and described isolation end;
Be filled in second insulator of described isolation end and described measuring junction.
Preferably, also comprise: with the isolation end extension line of described isolation end welding, this isolation end extension line and isolation end are enclosed within outside the described measuring junction extension line, and do not contact with described measuring junction extension line.
Preferably, also comprise: be enclosed within on the described measuring junction extension line, and be wrapped in described isolation end extension line and the 3rd interior insulation tube of described isolation end.
Preferably, also comprise: the 4th insulation tube that is enclosed within described isolation end extension line.
Preferably, also comprise: the connector that is made of one with described common port.
Preferably, the shape of described connector is a cone, and the shape of cross section of connector is taper, and the cone angle scope of xsect is 0～90 °.
Preferably, described connector comprises:
Joint face;
Be arranged on the nut of described joint face one side;
Be arranged on described joint face opposite side, and the fastening bolt that is connected with described common port.
Preferably, the shape of cross section of described isolation end is the shape that is axisymmetric " T " with described measuring junction extension line.
Preferably, described isolation end extension line is the tubular lead.
Preferably, described first insulator and described second insulator are the heat resisting and pressure resisting insulators.
Use technique scheme, level electrode is set up isolation end between measuring junction and common port, the identical voltage of isolation end with the access of measuring junction, and there is voltage difference in the voltage that voltage that common port inserts and measuring junction insert.When tested end is the water side, measuring junction and common port conducting, measuring junction has electric current to flow out, and because the water resistance resistance is little, the electric current of outflow is big.When tested end is the gas side, measuring junction and common port insulation, common port and isolation end have potential difference (PD), and isolation end has electric current to flow out, but because isolation end and measuring junction equipotential, isolation end stops electric current to flow into measuring junction, and the measuring junction no current flows out.The electrode insulation resistance that electrode is polluted or fouling caused reduces does not influence the measuring junction electric current.Use this programme, can correctly according to the size of current that measuring junction flows out judge that tested end is water side or gas side, and then the water level value of the tested end of correct calculation.Compared with prior art, solved that existing electrode is polluted or fouling after, the insulation resistance value of the measuring junction of electrode reduces institute and causes misjudgment, and then causes the problem to the miscount of tested end water level.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing in the utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the level electrode that Fig. 1 provides for the utility model embodiment;
The another kind of structural representation of the level electrode that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that is obtained under the creative work prerequisite.
The structural representation of the level electrode that the utility model embodiment provides as shown in Figure 1.Wherein:
1 is measuring junction, and 2 is common port, and 3 is the measuring junction extension line, and 4 is isolation end, and 5 is the isolation end extension line, and 6 is first insulator, and 7 is second insulator, and 8 is the 3rd insulation tube, and 9 is the 4th insulation tube, and 10 is connector.
For being fixed on, measures in the tube level electrode that the utility model is provided, on common port 2, fastening bolt is set, by the nut that is complementary with fastening bolt electrode is fixed on the electrode tip holder, utilize the pyramidal structure of connector 10 xsects as shown in Figure 1 and the wedge structure on the common port 2, electrode is pressed into the measurement tube, measuring junction 1, common port 2 and isolation end 4 is positioned at measures tube.Measure between tube and the connector 10 and be provided with sealing gasket, guarantee to measure sealing between tube and the connector 10.
Among the utility model embodiment, isolation end 4 is circular metallic objects, the shape of the xsect of this isolation end 4 is that the horizontal line of letter " T " partly is exposed at the outside with the shape of described measuring junction extension line 3 for axisymmetric " T ", and this structure increases the contact area of isolation end 4 and tested end.Isolation end extension line 5 is tubular leads.First insulator 6 and second insulator 7 are heat resisting and pressure resisting insulators, and the 3rd insulation tube 8 and the 4th insulation tube 9 are heat resisting and pressure resisting insulation tubes, guarantee that the electrode that the utility model provides can use in the environment of High Temperature High Pressure.
Level electrode shown in Figure 1 is forced level electrode, and the level electrode that the utility model provides can also be the screw-in level electrode, as shown in Figure 2.The screw-in level electrode is with the difference of forced level electrode: the structure of connector 10 is different.The structure of the connector 10 of screw-in level electrode as shown in Figure 2, connector 10 is by joint face 11, the fastening bolt 13 that is located at the nut 12 of joint face 11 1 ends and is located at joint face 11 other ends is formed, fastening bolt 13 is made of one with common port 2.By fastening bolt 12 electrode is screwed in the measurement tube.Measure between tube and the connector 10 and be provided with sealing gasket, guarantee to measure sealing between tube and the connector 10.
Use technique scheme, level electrode is set up isolation end 4 between measuring junction 1 and common port 2, the identical voltage of isolation end 4 with the access of measuring junction 1, and there is voltage difference in the voltage that voltage that common port 2 inserts and measuring junction 1 insert.When tested end is the water side, measuring junction 1 and common port 2 conductings, measuring junction 1 has electric current to flow out, and because the water resistance resistance is little, the electric current of outflow is big.When tested end is the gas side, measuring junction 1 and common port 2 insulation, common port 2 has potential difference (PD) with isolation end 4, and isolation end 4 has electric current to flow out, but because isolation end 4 and measuring junction 1 equipotential, isolation end 4 stops electric current to flow into measuring junction 1, and measuring junction 1 no current flows out.The electrode insulation resistance that electrode is polluted or fouling caused reduces does not influence measuring junction 1 electric current.Use this programme, can correctly according to the size of current that measuring junction 1 flows out judge that tested end is water side or gas side, and then the water level value of the tested end of correct calculation.Compared with prior art, solved that existing electrode is polluted or fouling after, the insulation resistance value of electrode reduces institute and causes misjudgment, and then causes the problem to the miscount of tested end water level.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment is conspicuous to those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and the corresponding to wide region of features of novelty.
Claims (10)
1. a level electrode comprises common port, measuring junction and measuring junction extension line, it is characterized in that, also comprises:
Isolation end between described measuring junction and described common port;
Be filled in first insulator of described common port and described isolation end;
Be filled in second insulator of described isolation end and described measuring junction.
2. level electrode according to claim 1 is characterized in that, also comprises:
With the isolation end extension line of described isolation end welding, this isolation end extension line and isolation end are enclosed within outside the described measuring junction extension line, and do not contact with described measuring junction extension line.
3. level electrode according to claim 2 is characterized in that, also comprises:
Be enclosed within on the described measuring junction extension line, and be wrapped in described isolation end extension line and the 3rd interior insulation tube of described isolation end.
4. level electrode according to claim 3 is characterized in that, also comprises:
Be enclosed within the 4th insulation tube of described isolation end extension line.
5. level electrode according to claim 4 is characterized in that, also comprises:
The connector that is made of one with described common port.
6. level electrode according to claim 5 is characterized in that the shape of described connector is a cone, and the shape of cross section of connector is taper, and the cone angle scope of xsect is 0～90 °.
7. level electrode according to claim 5 is characterized in that, described connector comprises:
Joint face;
Be arranged on the nut of described joint face one side;
Be arranged on described joint face opposite side, and the fastening bolt that is connected with described common port.
8. according to any described level electrode of claim 1-7, it is characterized in that the shape that the shape of cross section of described isolation end is is axisymmetric " T " with described measuring junction extension line.
9. according to any described level electrode of claim 1-7, it is characterized in that described isolation end extension line is the tubular lead.
10. according to any described level electrode of claim 1-7, it is characterized in that described first insulator and described second insulator are the heat resisting and pressure resisting insulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201756422U CN201662418U (en) | 2010-04-30 | 2010-04-30 | Water level electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201756422U CN201662418U (en) | 2010-04-30 | 2010-04-30 | Water level electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662418U true CN201662418U (en) | 2010-12-01 |
Family
ID=43232837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201756422U Expired - Lifetime CN201662418U (en) | 2010-04-30 | 2010-04-30 | Water level electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662418U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103579147A (en) * | 2013-11-06 | 2014-02-12 | 国家电网公司 | Equipotential electrode for converter valve |
| CN111366215A (en) * | 2020-04-09 | 2020-07-03 | 长春锅炉仪表程控设备股份有限公司 | Composite ceramic electrode |
-
2010
- 2010-04-30 CN CN2010201756422U patent/CN201662418U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103579147A (en) * | 2013-11-06 | 2014-02-12 | 国家电网公司 | Equipotential electrode for converter valve |
| CN103579147B (en) * | 2013-11-06 | 2016-09-21 | 国家电网公司 | A kind of equipotential electrode for converter valve |
| CN111366215A (en) * | 2020-04-09 | 2020-07-03 | 长春锅炉仪表程控设备股份有限公司 | Composite ceramic electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |
|
| CX01 | Expiry of patent term |