CN203551038U - Multi-segment cable type measuring electrode of admittance or capacitance level meter - Google Patents
Multi-segment cable type measuring electrode of admittance or capacitance level meter Download PDFInfo
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- CN203551038U CN203551038U CN201320728687.1U CN201320728687U CN203551038U CN 203551038 U CN203551038 U CN 203551038U CN 201320728687 U CN201320728687 U CN 201320728687U CN 203551038 U CN203551038 U CN 203551038U
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- potential electrode
- admittance
- electrical capacitance
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- 239000004020 conductor Substances 0.000 claims description 23
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- 230000001681 protective effect Effects 0.000 claims description 10
- 229920006814 PVC, UPVC Polymers 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 3
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 5
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- 239000011343 solid material Substances 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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Abstract
The utility model relates to a multi-segment cable type measuring electrode of an admittance or capacitance level meter. The multi-segment cable type measuring electrode comprises a plurality of shielded leads, a first insulating layer, a metal shielding layer and a second insulating layer, wherein the first insulating layer is arranged on the periphery of the shielded leads, the metal shielding layer is arranged on the periphery of the first insulating layer, the metal shielding layer is of a segmental structure, several segments of metal shielding layer are in one-to-one correspondence with the shielded leads, each segment of metal shielding layer is used as an independent measuring electrode segment and is electrically connected with the corresponding shielded lead, and the second insulating layer is arranged on the periphery of the metal shielding layer. The multi-segment cable type measuring electrode of the admittance or capacitance level meter has the advantages that a flexible structure is used for replacing a rigid structure, and the weight of a sensor is lowered; the measuring electrode is applicable to measuring the material level of liquid and slurry materials, and is also applicable to measuring the material level of solid state materials after the flexible armor is additionally arranged on the periphery of the electrode; the measuring electrode can automatically track the change of the physical property of the materials by being matched with an intelligent multi-channel admittance (capacitance) transmitter, so that automatic calibration is achieved; external environmental anti-interference performance and high measurement accuracy are improved.
Description
Technical field
The utility model belongs to fields of measurement, is specifically related to the multistage cable formula potential electrode of a kind of admittance or electrical capacitance levelmeter.
Background technology
Adopt the radio frequency admittance technology advantages such as measurement is current common sensing measurement mode to height of materials, and existing radio frequency admittance material level meter has simple in structure, and debugging is convenient, be at home and abroad all widely used.Radio frequency admittance level-sensing device in patent US005701084A, in use procedure, require the dielectric coefficient of measurement material constant, but in actual measurement, the dielectric coefficient of material changes with physical parameters such as temperature, pressure, density conventionally, so in application process, need personnel often to regulate the parameter of metering circuit according to the state of material.
In order to solve material dielectric coefficient, change the impact on measuring accuracy, a kind of method is the sensor that adopts segmental structure, and the impact that material change in dielectric constant is brought is eliminated in comparison, the computing of the material signal of surveying by each section of potential electrode.In structure, adopt in the segmentation of steel pipe vertical direction, the mode of section insulation.This structure has following deficiency: 1, steel pipe type sensor production complex process, and Heavy Weight, is difficult for transportation and installs; While 2, measuring solid material, sensor is subject to material impact and flexural deformation, causes damaging; If 3 measure humidity or conductive materials, need there be insulation course probe outside, and insulation course is to measure lump material easy to wear and cause sensor to damage.
Utility model content
The utility model proposes the multistage cable formula potential electrode of a kind of admittance or electrical capacitance levelmeter, can be combined with intelligent multi-channel admittance or capacitive pick-up and form a kind of intelligent level meter, solution conventional radio frequency Conductance Style Material Level Gauge can not realize the problem of automatic calibration when material change in dielectric constant; Solved before this steel pipe sectional type radio frequency admittance or electrical capacitance levelmeter sensor construction heaviness, difficult problem is installed in transportation; Sensor flexible distortion when having solved before this steel pipe sectional type radio frequency admittance or electrical capacitance levelmeter and measuring solid material and cause the problem of damaging, significantly promotes the serviceable life of sensor; When having solved steel pipe sectional type radio frequency admittance before this or electrical capacitance levelmeter and measuring solid material, steel pipe directly contacts with material and the electrostatic interference brought, and the problem of material corrosion sensor; Solve sectional type radio frequency admittance material level meter before this or the each segment electrode physical dimension of electrical capacitance levelmeter measuring-signal inconsistent and that cause inconsistent, unstable and then affect the problem of measuring accuracy, made up deficiency of the prior art.
The technical solution of the utility model is achieved in that
A multistage cable formula potential electrode for admittance or electrical capacitance levelmeter, is characterized in that, comprising:
Many shielded conductors;
Be located at the first insulation course of described many shielded conductor peripheries;
Be located at the metal screen layer of described the first insulation course periphery, described metal screen layer is segmental structure, each section of metal screen layer is corresponding one by one with each shielded conductor respectively, and every section of metal screen layer, as one section of potential electrode independently, is realized and being electrically connected with its corresponding shielded conductor; The material level signal that described many shielded conductors detect for transmitting each section of potential electrode;
Be located at the second insulation course of described metal screen layer periphery.
Further, the multistage cable formula potential electrode of described admittance or electrical capacitance levelmeter also comprises insulation cable wire, and described many shielded conductors are wound around around described insulation cable wire.
Preferably, described shielded conductor is two or two above Thin cables.
Preferably, described metal screen layer is two or more.
Preferably, the intersegmental interval of described metal screen layer is not less than 5mm.
Preferably, described metal screen layer is the reticulate texture of conductive wire braiding, or is band shape, spiral fashion or the tubular structure of conducting metal paillon foil winding.
Preferably, the material of described the first insulation course and described the second insulation course is PA, PVC, UPVC, F4, F46 or elastomeric material, described the first insulation course and described the second insulation course are to be applied and formed by above-mentioned any one material, or above-mentioned any one material sleeve pipe pyrocondensation, hot melt, welding or cementing the forming of making.
Further, also comprise flexible armor, described flexible armor comprises the multiple insulating sheaths that are set in potential electrode outside, and described insulating sheath xsect is circular or oval.
Further, described flexible armor also comprises the crude steel rope of tape insulation layer and is set in the protective metal shell outside described insulating sheath, the shape of cross section of described protective metal shell is corresponding with the shape of cross section of described insulating sheath, described insulating sheath is provided with three through holes, wherein intermediate throughholes is positioned at the center of circle or oval cross section, the through hole of both sides is symmetrical with respect to middle through hole, tangent or not tangent with middle through hole; Described potential electrode is through the intermediate throughholes of multiple described insulating sheaths; The crude steel rope of described tape insulation layer is through two side through hole of multiple described insulating sheaths.
Preferably, described crude steel rope is one, and two side through hole of described insulating sheath are passed respectively at its two ends after the doubling of middle part from bottom to top; Or described crude steel rope is two, every crude steel rope passes respectively two side through hole of described insulating sheath from bottom to top.
The beneficial effects of the utility model are:
1, can continuous coverage feed bin thing position, and can realize automatic calibration when material change in dielectric constant.
2, multistage electrode structure is consistent, and consistance and the stability of collection signal are significantly improved, and significantly improve measuring accuracy.
3,, compared with rigid electrode, the convenient transportation of flexible cable formula electrode structure is installed, and significantly improves impact resistance, is particularly suitable for wide range feed bin level gauging.
4, multistage electrode and material insulation, can significantly promote that opposing dust from flying disturbs, blanking material drains off and disturb and the performance of electrostatic interference.
5, range of application is more extensive, goes for liquid or pasty material; Install additional after armor also applicable to dust-like, granular solids material, resistance to wear, erosion-resisting performance is significantly improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the multistage cable formula potential electrode of admittance described in the utility model embodiment or electrical capacitance levelmeter;
Fig. 2 is the sectional view of the multistage cable formula potential electrode of admittance described in the utility model embodiment or electrical capacitance levelmeter;
Fig. 3 is the structural representation of the insulation cable wire described in the utility model embodiment;
Fig. 4 is the structural representation of the shielded conductor described in the utility model embodiment;
Fig. 5 is the structural representation of the metal screen layer described in the utility model embodiment;
Fig. 6 is that admittance described in the utility model embodiment or the multistage cable formula potential electrode of electrical capacitance levelmeter install the structural representation after flexible armor additional;
Fig. 7 is that the potential electrode described in the utility model embodiment is combined a kind of structural representation of intelligent level meter forming with intelligent multi-channel admittance transmitter.
In figure:
1, shielded conductor; 2, the first insulation course; 3, metal screen layer; 4, the second insulation course; 5, insulation cable wire; 6, potential electrode; 7, insulating sheath; 8, crude steel rope; 9, protective metal shell; 10, intelligent multi-channel admittance transmitter; 11, switching cavity; 12, ring flange; 13, transition conduit; 14, sensor.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-5, the admittance described in the utility model embodiment or the multistage cable formula potential electrode of electrical capacitance levelmeter, comprising:
Many shielded conductors 1;
Be located at the first insulation course 2 of described many shielded conductors 1 periphery;
Be located at the metal screen layer 3 of described the first insulation course 2 peripheries, described metal screen layer is segmental structure, each section of metal screen layer is corresponding one by one with each shielded conductor respectively, and every section of metal screen layer, as one section of potential electrode independently, is realized and being electrically connected with its corresponding shielded conductor; The material level signal that described many shielded conductors detect for transmitting each section of potential electrode.
Be located at the second insulation course 4 of described metal screen layer 3 peripheries.
Further, the multistage cable formula potential electrode of described admittance or electrical capacitance levelmeter also comprises insulation cable wire 5, and described many shielded conductors 1 are wound around around described insulation cable wire 5.The effect of insulation cable wire is the intensity in order to increase potential electrode.
In this example, described shielded conductor is six roots of sensation Thin cable.
In this example, described metal screen layer is five sections, described every section of metal screen layer measure-alike.
In this example, the intersegmental interval of described metal screen layer equals 20mm.
Wherein, metal screen layer can be the reticulate texture of conductive wire braiding, can be also band shape, spiral fashion or the tubular structure of conductive metal foil sheet winding.
Wherein, the material of the first insulation course and described the second insulation course is PA, PVC, UPVC, F4, F46 or elastomeric material, described the first insulation course and described the second insulation course are to be applied and formed by above-mentioned any one material, or above-mentioned any one material sleeve pipe pyrocondensation, hot melt, welding or cementing the forming of making.
As shown in Figure 6, potential electrode 6 outsides described in the utility model embodiment have installed flexible armor additional, and described flexible armor comprises the multiple insulating sheaths 7 that are set in potential electrode 6 outsides, and described insulating sheath 7 xsects are oval.Described flexible armor also comprises the crude steel rope 8 of tape insulation layer and is set in the protective metal shell 9 outside described insulating sheath 7, the shape of cross section of described protective metal shell 9 is corresponding with the shape of cross section of described insulating sheath 7, described insulating sheath 7 is provided with three through holes, wherein intermediate throughholes is positioned at the center of oval cross section, the through hole of both sides is symmetrical with respect to middle through hole, tangent with middle through hole; Described potential electrode 6 is through the intermediate throughholes of multiple described insulating sheaths 7; The crude steel rope 8 of described tape insulation layer is through two side through hole of multiple described insulating sheaths 7.When the described potential electrode of application is assembled into level meter, described crude steel rope 8 ends are fixed in the switching cavity of level meter.Protective metal shell is mainly used in the scuff resistance of reinforced insulation sheath.Described crude steel rope is one, and two side through hole of described insulating sheath are passed respectively at its two ends after the doubling of middle part from bottom to top; Or can be also that described crude steel rope is two, every crude steel rope passes respectively two side through hole of described insulating sheath from bottom to top.Crude steel rope Main Function is that insulating sheath and protective metal shell are linked together, and forms flexible armor with protection electrode.
The effect of flexible armor is for protection electrode, avoids being subject to the friction of solid material, and the occasion that wherein friction force is less can be saved protective metal shell, while measuring liquid, can entirety save flexible armor, directly uses potential electrode.
As shown in Figure 7, potential electrode described in the utility model embodiment is combined the one intelligence level meter forming with intelligent multi-channel admittance transmitter, comprise the intelligent multi-channel admittance transmitter 10 connecting in turn from top to bottom, switching cavity 11, ring flange 12, transition conduit 13 and sensor 14, described sensor 14 and described intelligent multi-channel admittance transmitter 10 are realized mechanical connection and electrical connection described switching cavity 11 is interior, described sensor 14 comprises the potential electrode 6 described in the utility model embodiment, described intelligent multi-channel admittance transmitter 10 receives and processes the measuring-signal of described potential electrode 6 and exports the thing position altitude signal of feed bin.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a multistage cable formula potential electrode for admittance or electrical capacitance levelmeter, is characterized in that, comprising:
Many shielded conductors;
Be located at the first insulation course of described many shielded conductor peripheries;
Be located at the metal screen layer of described the first insulation course periphery, described metal screen layer is segmental structure, each section of metal screen layer is corresponding one by one with each shielded conductor respectively, and every section of metal screen layer, as one section of potential electrode independently, is realized and being electrically connected with its corresponding shielded conductor;
Be located at the second insulation course of described metal screen layer periphery.
2. the multistage cable formula potential electrode of admittance according to claim 1 or electrical capacitance levelmeter, is characterized in that: also comprise insulation cable wire, described many shielded conductors are wound around around described insulation cable wire.
3. the multistage cable formula potential electrode of admittance according to claim 1 and 2 or electrical capacitance levelmeter, is characterized in that: described shielded conductor is two or two above Thin cables.
4. the multistage cable formula potential electrode of admittance according to claim 1 and 2 or electrical capacitance levelmeter, is characterized in that: described metal screen layer is two or more.
5. the multistage cable formula potential electrode of admittance according to claim 4 or electrical capacitance levelmeter, is characterized in that: the intersegmental interval of described metal screen layer is not less than 5mm.
6. the multistage cable formula potential electrode of admittance according to claim 5 or electrical capacitance levelmeter, is characterized in that: described metal screen layer is the reticulate texture of conductive wire braiding, or is band shape, spiral fashion or the tubular structure of conducting metal paillon foil winding.
7. the multistage cable formula potential electrode of admittance according to claim 1 and 2 or electrical capacitance levelmeter, it is characterized in that: the material of described the first insulation course and described the second insulation course is PA, PVC, UPVC, F4, F46 or elastomeric material, described the first insulation course and described the second insulation course are to be applied and formed by above-mentioned any one material, or above-mentioned any one material sleeve pipe pyrocondensation, hot melt, welding or cementing the forming of making.
8. according to the multistage cable formula potential electrode of the admittance described in claim 1 or 4 or electrical capacitance levelmeter, it is characterized in that: also comprise flexible armor, described flexible armor comprises the multiple insulating sheaths that are set in potential electrode outside, and described insulating sheath xsect is circular or oval.
9. the multistage cable formula potential electrode of admittance according to claim 8 or electrical capacitance levelmeter, it is characterized in that: described flexible armor also comprises the crude steel rope of tape insulation layer and is set in the protective metal shell outside described insulating sheath, the shape of cross section of described protective metal shell is corresponding with the shape of cross section of described insulating sheath, described insulating sheath is provided with three through holes, wherein intermediate throughholes is positioned at the center of circle or oval cross section, the through hole of both sides is symmetrical with respect to middle through hole, tangent or not tangent with middle through hole; Described potential electrode is through the intermediate throughholes of multiple described insulating sheaths; The crude steel rope of described tape insulation layer is through two side through hole of multiple described insulating sheaths.
10. the multistage cable formula potential electrode of admittance according to claim 9 or electrical capacitance levelmeter, is characterized in that: described crude steel rope is one, and two side through hole of described insulating sheath are passed respectively at its two ends after the doubling of middle part from bottom to top; Or described crude steel rope is two, every crude steel rope passes respectively two side through hole of described insulating sheath from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728687.1U CN203551038U (en) | 2013-11-18 | 2013-11-18 | Multi-segment cable type measuring electrode of admittance or capacitance level meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728687.1U CN203551038U (en) | 2013-11-18 | 2013-11-18 | Multi-segment cable type measuring electrode of admittance or capacitance level meter |
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| CN203551038U true CN203551038U (en) | 2014-04-16 |
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| CN201320728687.1U Expired - Lifetime CN203551038U (en) | 2013-11-18 | 2013-11-18 | Multi-segment cable type measuring electrode of admittance or capacitance level meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542910A (en) * | 2013-11-18 | 2014-01-29 | 于浩业 | Multi-section cable type measuring electrode of admittance or capacitance level meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542910A (en) * | 2013-11-18 | 2014-01-29 | 于浩业 | Multi-section cable type measuring electrode of admittance or capacitance level meter |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180712 Address after: 264200 Beiyang Tuan Village, Huancui Town, Huancui City, Shandong Patentee after: WEIHAI DONGSHAN AUTOMATION TECHNOLOGY Co.,Ltd. Address before: 264204 Huancui District, Weihai City, Shandong province Huancui Town North River Tuen village north Weihai Dongshan Automation Technology Co., Ltd. Co-patentee before: Zhu Gengjun Patentee before: Yu Haoye |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |