CN104242654A - Self-energy-getting method and structure of aluminum electrolysis cell pyroelectric sensor - Google Patents
Self-energy-getting method and structure of aluminum electrolysis cell pyroelectric sensor Download PDFInfo
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- CN104242654A CN104242654A CN201410517034.8A CN201410517034A CN104242654A CN 104242654 A CN104242654 A CN 104242654A CN 201410517034 A CN201410517034 A CN 201410517034A CN 104242654 A CN104242654 A CN 104242654A
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Abstract
The invention discloses a self-energy-getting method and a structure of an aluminum electrolysis cell pyroelectric sensor. Small direct-current voltage between two points on an aluminum electrolysis cell bus is utilized and converted into direct-current voltage suitable for a measuring circuit for working through a self-energy-getting circuit to power the measuring circuit, power can be provided to an outside wireless transceiving circuit, and in this way, the problems caused by the fact that an aluminum electrolysis pyroelectric signal measuring device or instrument adopts an outside power source and a battery for power supply are solved, the outside power source or the battery is not needed for power supply during measuring of aluminum electrolysis pyroelectric signals, so that a pyroelectric measuring device formed by using the pyroelectric sensor is convenient to mount and demount, energy saving, environment friendly and free of maintenance.
Description
Technical field
The present invention relates to electricity field, especially a kind of self-energizing method of aluminium cell thermoelectric pickup and structure.
Background technology
The supply power mode of aluminum current electrolysis tank pyroelectric signal measurement mechanism or instrument mainly contains external power source or powered battery two kinds.
External power source mode connects external power source by wire, thus power for aluminium cell pyroelectric signal measurement mechanism or instrument, this mode also exists the problem of the laying of service cable, dismounting and maintenance inconvenience, even can have influence on normal process operation, when point for measuring temperature quantity is more, this problem is especially outstanding.
Though adopt battery powered aluminium cell pyroelectric signal measurement mechanism or instrument to have easy installation and removal, be easy to the feature of expansion, but be subject to the restriction of common batteries serviceability temperature, they are not suitable for long-time near work some industry spot at the higher environment of temperature, simultaneously this kind of aluminium cell pyroelectric signal measurement mechanism or instrument regularly must change battery, and these defects make them to close and application in the instrument that need work long hours is restricted in some ambient temperature high field.
Self-energizing mode mainly contains and utilizes electromagnetic induction principle to get energy and utilize circumstance of temperature difference get energy two kinds.
Utilize electromagnetic induction principle from neighbouring AC magnetic field get can wireless temperature measuring device or instrument be applicable near AC power thermometric, its scope of application is subject to a definite limitation.
Circumstance of temperature difference is got and can mainly be utilized semiconductor thermoelectric sheet to carry out heat energy-electric energy conversion at present, and its advantage is that cost is low, and volume is little, and output voltage is larger.But also there is fatal defect, even if the temperature in its hot junction of used time can not be too high, generally can not more than 60 DEG C, otherwise semiconductor thermoelectric sheet will be caused to damage.
Summary of the invention
The object of the invention is: self-energizing method and structure that a kind of aluminium cell thermoelectric pickup is provided, its installation, convenient disassembly, energy-conserving and environment-protective, non-maintaining, to overcome the deficiencies in the prior art.
The present invention is achieved in that the self-energizing method of aluminium cell thermoelectric pickup, 2 power takings from same bus of aluminium cell, utilize the electrical potential difference existed between these 2, be two-way 1.8V ~ 5.5V DC power supply by busbar voltage by self-energizing circuit conversion, wherein a road is that pyroelectric signal measuring circuit is powered, another road is that the external circuit of thermoelectric pickup is powered, thus realizes the self-energizing of aluminium cell thermoelectric pickup.
Described pyroelectric signal measuring circuit exports the 0 ~ 5V direct voltage corresponding with measured pyroelectric signal after carrying out measuring and amplifying to temperature and voltage.
On bus, the voltage of the point-to-point transmission of power taking is not less than 30mv.
The self-energizing structure of aluminium cell thermoelectric pickup, comprise bus, be provided with booster type dc-dc A and booster type dc-dc B, the input of booster type dc-dc A is connected with the wiring point A of bus, the input of booster type dc-dc B is connected with the wiring point B of bus, booster type dc-dc A is connected with the input of thermoelectric measurement circuit, and booster type dc-dc B is connected with the input of external circuit.
Described external circuit is one or two in controller or wireless transceiver circuit.
Owing to have employed technique scheme, compared with prior art, the present invention utilizes the small direct voltage of point-to-point transmission on aluminum cell bus-bar, power to measuring circuit after the direct voltage that self-energizing circuit conversion is applicable measuring circuit work, can also power for outside wireless transceiver circuit simultaneously, such mode solves aluminium cell pyroelectric signal measurement mechanism or instrument adopts external power source and powered battery Problems existing, external power source or powered battery is not needed when measuring aluminium cell pyroelectric signal, therefore install with the thermoelectric measurement device that this thermoelectric pickup is formed, convenient disassembly, energy-conserving and environment-protective, non-maintaining.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of embodiments of the invention;
Accompanying drawing 2 is the circuit diagram of the booster type dc-dc of embodiments of the invention;
Accompanying drawing 3 is the circuit diagram of the low dissipation amplifier of embodiments of the invention;
Accompanying drawing 4 is fundamental diagram of the present invention.
Embodiment
Embodiments of the invention: the self-energizing method of aluminium cell thermoelectric pickup, 2 power takings from same bus of aluminium cell, utilize the electrical potential difference existed between these 2, on bus, the voltage of the point-to-point transmission of power taking is not less than 30mv; Be two-way 3.3V DC power supply by busbar voltage by self-energizing circuit conversion, wherein a road is that pyroelectric signal measuring circuit is powered, and another road is that the external circuit of electric transducer is powered, thus realizes the self-energizing of aluminium cell thermoelectric pickup; Pyroelectric signal measuring circuit exports the 0 ~ 3V direct voltage corresponding with measured pyroelectric signal after carrying out measuring and amplifying to temperature and voltage.
The self-energizing structure of aluminium cell thermoelectric pickup as shown in Figure 1, comprise bus 3, be provided with booster type dc-dc A1 and booster type dc-dc B2, the input of booster type dc-dc A1 is connected with the wiring point A4 of bus 3, the input of booster type dc-dc B2 is connected with the wiring point B5 of bus, booster type dc-dc A1 is connected with the input of thermoelectric measurement circuit 6, and booster type dc-dc B2 is connected with the input of external circuit; External circuit comprises controller and wireless transceiver circuit.
In the present embodiment, booster type dc-dc A1 and booster type dc-dc B2 all adopts model to be the dc-dc of LTC3109, voltage on the bus 3 of aluminium cell is linked into in1 and the in2 two ends of booster type dc-dc, and in this embodiment, the output voltage of dc-dc is 3.3V; Pyroelectric signal measuring circuit 6 is for measuring aluminum cell bus-bar voltage, tank voltage, aluminium cell temperature (can measure bus temperature, shell temperature and refractory bricks etc.), low-power consumption integrated amplifier AD8420 is adopted to form amplifying circuit in this embodiment, its multiplication factor is determined by resistance R1 and R2, the resistance of R1 and R2 specifically need calculate according to tested pyroelectric signal scope, utilize the circuit that two such, mix the resistance of suitable R1 and R2 as calculated and can realize the measurement respectively to bus temperature and voltage; Thermoelectric measurement circuit 6 is made up of low-power consumption amplifying circuit, and temperature sensor adopts thermocouple, and it exports as the 0V ~ 3V direct voltage corresponding with tested pyroelectric signal.
The output voltage V of booster type dc-dc A1 in Fig. 1
cC1power for giving pyroelectric signal measuring circuit 6; The output voltage V of booster type dc-dc B2
cC2for powering to thermoelectric pickup external circuit, utilize V
cC2adopt as power supply, and without the need to adopting other power supplys in addition.
Claims (5)
1. the self-energizing method of an aluminium cell thermoelectric pickup, it is characterized in that: 2 power takings from same bus of aluminium cell, utilize the electrical potential difference existed between these 2, be two-way 1.8V ~ 5.5V DC power supply by busbar voltage by self-energizing circuit conversion, wherein a road is that pyroelectric signal measuring circuit is powered, another road is that the external circuit of thermoelectric pickup is powered, thus realizes the self-energizing of aluminium cell thermoelectric pickup.
2. the self-energizing method of aluminium cell thermoelectric pickup according to claim 1, is characterized in that: described pyroelectric signal measuring circuit exports the 0 ~ 5V direct voltage corresponding with measured pyroelectric signal after carrying out measuring and amplifying to temperature and voltage.
3. the self-energizing method of aluminium cell thermoelectric pickup according to claim 1, is characterized in that: on bus, the voltage of the point-to-point transmission of power taking is not less than 30mv.
4. one kind adopts the self-energizing structure of the self-energizing method of aluminium cell thermoelectric pickup according to claim 1, comprise bus (3), it is characterized in that: be provided with booster type dc-dc A(1) and booster type dc-dc B(2), booster type dc-dc A(1) the wiring point A(4 of input and bus (3)) be connected, booster type dc-dc B(2) the wiring point B(5 of input and bus) be connected, booster type dc-dc A(1) be connected with the input of thermoelectric measurement circuit (6), booster type dc-dc B(2) be connected with the input of external circuit.
5. self-energizing structure according to claim 4, is characterized in that: described external circuit is one or two in controller or wireless transceiver circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517034.8A CN104242654A (en) | 2014-09-30 | 2014-09-30 | Self-energy-getting method and structure of aluminum electrolysis cell pyroelectric sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517034.8A CN104242654A (en) | 2014-09-30 | 2014-09-30 | Self-energy-getting method and structure of aluminum electrolysis cell pyroelectric sensor |
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| CN104242654A true CN104242654A (en) | 2014-12-24 |
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| CN201410517034.8A Pending CN104242654A (en) | 2014-09-30 | 2014-09-30 | Self-energy-getting method and structure of aluminum electrolysis cell pyroelectric sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006962A (en) * | 2015-08-19 | 2015-10-28 | 杭州准联科技有限公司 | Device for directly taking power from electrolytic tank and method thereof |
| CN109029757A (en) * | 2018-08-16 | 2018-12-18 | 云南卓烁科技有限公司 | A kind of aluminium cell temperature acquisition system |
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| CN1834300A (en) * | 2005-03-17 | 2006-09-20 | 贵阳铝镁设计研究院 | Three-point power feeding method of small aluminium electrolytic cell and bus connection structure |
| CN200996054Y (en) * | 2006-09-13 | 2007-12-26 | 东北大学设计研究院（有限公司） | Cathodic bus arrangement structure for superlarge aluminum electrolyzer |
| CN101610046A (en) * | 2008-06-16 | 2009-12-23 | 湖南晟通科技集团有限公司 | Aluminium electrolytic heat utilization method |
| CN101936782A (en) * | 2010-09-30 | 2011-01-05 | 郑州中实赛尔科技有限公司 | Aluminum electrolysis cell shell temperature online-monitoring device |
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2014
- 2014-09-30 CN CN201410517034.8A patent/CN104242654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834300A (en) * | 2005-03-17 | 2006-09-20 | 贵阳铝镁设计研究院 | Three-point power feeding method of small aluminium electrolytic cell and bus connection structure |
| CN200996054Y (en) * | 2006-09-13 | 2007-12-26 | 东北大学设计研究院（有限公司） | Cathodic bus arrangement structure for superlarge aluminum electrolyzer |
| CN101610046A (en) * | 2008-06-16 | 2009-12-23 | 湖南晟通科技集团有限公司 | Aluminium electrolytic heat utilization method |
| CN101936782A (en) * | 2010-09-30 | 2011-01-05 | 郑州中实赛尔科技有限公司 | Aluminum electrolysis cell shell temperature online-monitoring device |
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| 王其军 等: "能量收集电源在石油工业中的应用", 《仪器仪表用户》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006962A (en) * | 2015-08-19 | 2015-10-28 | 杭州准联科技有限公司 | Device for directly taking power from electrolytic tank and method thereof |
| CN109029757A (en) * | 2018-08-16 | 2018-12-18 | 云南卓烁科技有限公司 | A kind of aluminium cell temperature acquisition system |
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Application publication date: 20141224 |