CN107171579A - Joule heating device and the light field with electric heating function - Google Patents
Joule heating device and the light field with electric heating function Download PDFInfo
- Publication number
- CN107171579A CN107171579A CN201710528057.2A CN201710528057A CN107171579A CN 107171579 A CN107171579 A CN 107171579A CN 201710528057 A CN201710528057 A CN 201710528057A CN 107171579 A CN107171579 A CN 107171579A
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- China
- Prior art keywords
- output
- negative pole
- phase
- overall
- heating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- 238000005485 electric heating Methods 0.000 title claims description 6
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 description 11
- 238000010248 power generation Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/60—Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of Joule heating device, including at least one rectification unit corresponding with three-phase alternating current, described rectification unit includes six MDQs that three are one group, the live wire input of same group of three one-way commutation modules is electrically connected with the three-phase of three-phase alternating current respectively, overall positive pole and overall negative pole are used as after the output correspondence of same group of three MDQs is in parallel, the overall positive pole and another group of overall negative pole of one group of single-phase rectifier module are simultaneously used as output earth polar after connecing, remaining overall positive pole and overall negative pole are respectively as output cathode and output negative pole.The present invention is directly converted into direct current using three-phase alternating current and is electrically heated, the voltage range of three-phase electricity：270Vac 502Vac, frequency range 45Hz 65Hz, direct current output voltage-to-ground 42.5V, and used in original scheme for exchange 42.5V, its crest voltage reaches 60V, and the DC voltage that compares is lower safer.
Description
Technical field
The present invention relates to photo-thermal electro-technical field, more particularly to a kind of Joule heating device and with electric heating function
Light field.
Background technology
Traditional solar parabolic through power generation system is that the collection thermal medium in sunglasses arrangement heat collector, heat collector is
Conduction oil, therefore, sunglasses converge to sunshine in heat collector, so as to be high temperature by heat-conducting oil heating cold in heat collector
Conduction oil；The high temperature heat conductive oil exported from heat collector is flowed into oil water heat exchange device, and heat exchange is carried out with cooling water, by cooling water plus
Heat is superheated steam, so that driving steam turbine acting generates electricity；The cold conduction oil exported through oil water heat exchange device is circulated by conduction oil
Pump is transmitted back in heat collector again to be absorbed heat.In addition, when sunshine is sufficient, the high temperature heat conductive oil also portion exported from heat collector
Divide and be transported in oily salt heat exchanger, occur heat exchange with heat-storage medium fuse salt, fuse salt is heated to be high-temperature fusion salt, and lead to
Overheat storage salt cellar is stored as thermal source.As can be seen here, traditional solar parabolic through power generation system, thermal-arrest is used as using conduction oil
Medium, using fuse salt as heat storage medium, power generation medium is used as using water vapour；Because the temperature upper limit of conduction oil is 400
Degree, so as to constrain the vapor (steam) temperature and pressure parameter of trough type solar power generation, it is difficult to improve generating efficiency；Further, since
Three kinds of media are employed, solar parabolic through power generation system needs to set oily salt heat exchanger and oil water heat exchange device, adds system
Cost.
To solve the above problems, the exploitation of Ye You research and development institutions is used as thermal-arrest and accumulation of heat simultaneously using medium of fused salt in the world
The solar parabolic through power generation system of medium, however, because the freezing point of fuse salt is very high, therefore, fuse salt is very easy to solidifying
Gu, so that the tape loop for whole solar parabolic through power generation system carrys out catastrophic failure.
General groove type heat collector needs to preheat thermal-collecting tube before all using electrically heated mode, i.e. heat collecting field note salt, but is collected
Heat pipe structure is limited, and can only preheat thermal-collecting tube by Joule heating.Voltage is applied directly on heating object by Joule heating,
Using the Joule effect heating of conductor in itself, belong to direct resistance heating, the thermal efficiency is high.
Original joule heater, is single-phase transformer, and power supply three-phase imbalance can be caused during use.Diesel oil
The harm that can be caused during generator three-phase imbalance is as follows：
1) service capacity of equipment is influenceed, gen-set Capacity design is determined by three-phase load condition, if
Three-phase load unbalance, place capacity one can only be mutually limited with maximum in three-phase load, therefore equipment is exerted oneself reduction.
2) neutral conductor just has electric current to pass through, low-voltage supply line loss increase.
3) three-phase voltage asymmetry is caused, neutral point potential is produced displacement.
4) power output of motor is influenceed, and raises winding temperature.
5) make the phase voltage having high, phase voltage reduction in addition.
6) neutral current is excessive, and different line may blow.
The content of the invention
In view of the technical drawbacks of the prior art, it is an object of the present invention to provide a kind of electrical heating of light field dress
Put.
To realize that the technical scheme that the purpose of the present invention is used is：
A kind of Joule heating device, including at least one rectification unit corresponding with three-phase alternating current, described rectification list
It is one group of six MDQs that member, which includes three, the live wire inputs of same group of three one-way commutation modules respectively with
The three-phase of three-phase alternating current is electrically connected, after the output correspondence of same group of three MDQs is in parallel as overall positive pole and
Overall negative pole, the overall positive pole and another group of overall negative pole of one group of single-phase rectifier module and after connecing as output earth polar, remaining
Overall positive pole and overall negative pole respectively as output cathode and output negative pole.
Including 2-4 rectification unit, the input of described rectification unit is simultaneously connected to three-phase electricity, and output correspondence is simultaneously connected to output
Earth polar, output cathode and output negative pole.
Also include the lightning protection unit for being connected in parallel on described three-phase alternating current side.
Described output negative pole, output cathode and the corresponding input for accessing breaker in output earth polar.
A kind of light field with electric heating function, described light field includes being sequentially connected in series sub- groove type heat collector by multiple and being constituted
Groove type heat collector and the Joule heating device as described in claim any one of 1-4, described groove type heat collector includes quilt
The thermal-collecting tube of insulating supporting, the thermal-collecting tube of each groove type heat collector is connected and is conducted through metal hose, described output cathode
In the middle part of access series connection and the thermal-collecting tube of conducting, the thermal-collecting tube two ends of the described series connection of described output negative pole access and conducting.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is directly converted into direct current using three-phase alternating current and is electrically heated, the voltage range of three-phase electricity：
270Vac-502Vac, frequency range 45Hz-65Hz, direct current output voltage-to-ground 42.5V, and used in original scheme to hand over
42.5V is flowed, its crest voltage reaches 60V, and the DC voltage that compares is lower safer.Because the output of two groups of MDQs and
Connect and load is evenly dispersed on three-phase, therefore no matter how many joule heater started simultaneously in heating process, all without causing
The three-phase imbalance of power supply.Therefore have great advantage for being selected as the diesel-driven generator of power supply, essentially eliminate it is alternate not
Balance the harm to generator.
Brief description of the drawings
Fig. 1 show the structural representation of the electric heater unit of the light field of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
As illustrated, the Joule heating device of the present invention includes at least one rectification unit corresponding with three-phase alternating current,
Described rectification unit includes six MDQs that three are one group, the live wire of same group of three one-way commutation modules
Input is electrically connected with the three-phase of three-phase alternating current respectively, makees after the output correspondence of same group of three MDQs is in parallel
For overall positive pole and overall negative pole, the overall positive pole and another group of overall negative pole of one group of single-phase rectifier module and after connecing as defeated
Go out earth polar, remaining overall positive pole and overall negative pole are respectively as output cathode and output negative pole.Described output negative pole, output
The input of positive pole access breaker corresponding with output earth polar is to be used as final output control.Such as, described single-phase rectifier module
For REC G SPCS, L1, L2 or L3 of its live wire input correspondence access three-phase alternating current, zero line input access three-phase alternating current
The N poles of electricity, each PE poles ground connection, the positive pole of individual event rectification mould is output as+45.2V, and negative pole is -42.5V to meet safe handling need
Ask.
Also include the monitoring module with described MDQ, lightning protection unit communication link simultaneously, its function is 1.
Control：Make rectifier can receive on the spot or long-range start and stop, pressure regulation instruction；2. detection：Detect the work of each rectification module, arrester
Make state and output current；3. protection：Detect output current it is excessive, too small, it is unbalanced when send instruction, closedown module is defeated
Go out.Meanwhile, output cathode input side corresponding with output earth polar is also serially connected with two current detectors of FL1, FL2 respectively, is flowed using inspection
Device can detect output current.
Outlet side why be set to positive pole, negative pole, three output stages be because being mended in collection hot loop by angle between SCA
Repay device to be connected, and angular compensator is directly grounded, for ensure Joule heating loop will not to adjacent S CA or big ground leakage current,
Therefore need rectifier to be output as three poles, and a pole is directly grounded, another the two poles of the earth voltage-to-ground is equal in magnitude, positive and negative opposite.
The present invention is directly converted into direct current using three-phase alternating current and is electrically heated, the voltage range of three-phase electricity：
270Vac-502Vac, frequency range 45Hz-65Hz, direct current output voltage-to-ground 42.5V, and used in original scheme to hand over
42.5V is flowed, its crest voltage reaches 60V, and the DC voltage that compares is lower safer.Because the output of two groups of MDQs and
Connect and load is evenly dispersed on three-phase, therefore no matter how many joule heater started simultaneously in heating process, all without causing
The three-phase imbalance of power supply.Therefore have great advantage for being selected as the diesel-driven generator of power supply, essentially eliminate it is alternate not
Balance the harm to generator.
Preferably, Joule heating device of the invention includes 2-4 rectification unit, and the input of described rectification unit simultaneously connects
To three-phase electricity, output correspondence is simultaneously connected to output earth polar, output cathode and output negative pole.It is multiple to be arranged in parallel, standby carry can be introduced
The stability that high integral device is used, and power output is improved, improve heating effect.
Meanwhile, to improve overall security, in addition to it is connected in parallel on the lightning protection unit of described three-phase alternating current side.And
And, three-phase alternating current after prime breaker input rectifying unit to be used as front-end control.
As a whole, Joule heating device of the invention includes Alternating Current Unit, rectification unit and DC distribution list
Member, Alternating Current Unit includes lightning protection unit and civil power input breaker, and Direct Current Distribution Unit will each MDQ
Input and connect the breaker as overall output.
The present invention further simultaneously discloses a kind of light field with electric heating function, and described light field includes being gone here and there successively by multiple
Join groove type heat collector and described Joule heating device that sub- groove type heat collector is constituted, described groove type heat collector includes exhausted
The thermal-collecting tube of edge support, the thermal-collecting tube of each groove type heat collector is connected and is conducted through metal hose, and described output cathode connects
In the middle part of the thermal-collecting tube for entering series connection and conducting, the thermal-collecting tube two ends of the described series connection of described output negative pole access and conducting.
The light field of the present invention, is heated using low-voltage DC, and the delivery pipe progress at the thermal-collecting tube two ends after series connection is more
Point ground connection, has been effectively ensured the convenience of safety in utilization and electrical connection, can realize the Joule heating of quick effectively controllable safety.
Described above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of Joule heating device, it is characterised in that described including at least one rectification unit corresponding with three-phase alternating current
Rectification unit to include three be one group of six MDQs, the live wire input of same group of three one-way commutation modules
End is electrically connected with the three-phase of three-phase alternating current respectively, as whole after the output correspondence of same group of three MDQs is in parallel
Body positive pole and overall negative pole, the overall positive pole and another group of overall negative pole of one group of single-phase rectifier module and after connecing as output ground
Pole, remaining overall positive pole and overall negative pole are respectively as output cathode and output negative pole.
2. Joule heating device as claimed in claim 1, it is characterised in that including 2-4 rectification unit, described rectification list
The input of member is simultaneously connected to three-phase electricity, and output correspondence is simultaneously connected to output earth polar, output cathode and output negative pole.
3. Joule heating device as claimed in claim 1, it is characterised in that also including being connected in parallel on described three-phase alternating current side
Lightning protection unit.
4. Joule heating device as claimed in claim 1, it is characterised in that described output negative pole, output cathode and output
The input of earth polar correspondence access breaker.
5. a kind of light field with electric heating function, it is characterised in that described light field includes being sequentially connected in series pilot trench formula by multiple
Groove type heat collector and the Joule heating device as described in claim any one of 1-4 that heat collector is constituted, described slot type collection
Hot device is included by the thermal-collecting tube of insulating supporting, and the thermal-collecting tube of each groove type heat collector is connected and is conducted through metal hose, described
Output cathode access series connection and the thermal-collecting tube of conducting in the middle part of, the thermal-arrest of the described series connection of described output negative pole access and conducting
Pipe two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528057.2A CN107171579A (en) | 2017-06-30 | 2017-06-30 | Joule heating device and the light field with electric heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528057.2A CN107171579A (en) | 2017-06-30 | 2017-06-30 | Joule heating device and the light field with electric heating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107171579A true CN107171579A (en) | 2017-09-15 |
Family
ID=59827801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528057.2A Pending CN107171579A (en) | 2017-06-30 | 2017-06-30 | Joule heating device and the light field with electric heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107171579A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904244A (en) * | 2012-11-12 | 2013-01-30 | 重庆乾威科技有限公司 | Power supply system of communication power supply |
| CN102969732A (en) * | 2012-11-01 | 2013-03-13 | 浙江大学 | Mixed bipolar direct current (DC) transmission system |
| CN103036333A (en) * | 2011-09-29 | 2013-04-10 | 上海控源电子科技有限公司 | Three-phase four-line digital generator |
| CN202946113U (en) * | 2012-11-23 | 2013-05-22 | 尹洪生 | Thickened oil exploitation solar energy battery mixed power supply heating device |
| CN103595273A (en) * | 2012-08-15 | 2014-02-19 | 上海稳得新能源科技有限公司 | A direct current energizing method |
| CN203640691U (en) * | 2014-01-01 | 2014-06-11 | 尹晓松 | Electric heater for applying renewable energy power generation to heavy oil recovery and oil pipelines |
| CN104079184A (en) * | 2014-06-23 | 2014-10-01 | 周细文 | Wind power converter based on bipolar direct-current structure |
| CN104600715A (en) * | 2014-12-31 | 2015-05-06 | 乌鲁木齐德旺源鑫节能环保科技有限公司 | Power rectifier harmonic reactive power compensation energy-saving electrical heating device |
| CN105048614A (en) * | 2015-07-31 | 2015-11-11 | 陈建国 | Circuit structure for permanent magnet alternator regulator |
| CN207117496U (en) * | 2017-06-30 | 2018-03-16 | 天津滨海光热技术研究院有限公司 | Joule heating device and the light field with electric heating function |
-
2017
- 2017-06-30 CN CN201710528057.2A patent/CN107171579A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036333A (en) * | 2011-09-29 | 2013-04-10 | 上海控源电子科技有限公司 | Three-phase four-line digital generator |
| CN103595273A (en) * | 2012-08-15 | 2014-02-19 | 上海稳得新能源科技有限公司 | A direct current energizing method |
| CN102969732A (en) * | 2012-11-01 | 2013-03-13 | 浙江大学 | Mixed bipolar direct current (DC) transmission system |
| CN102904244A (en) * | 2012-11-12 | 2013-01-30 | 重庆乾威科技有限公司 | Power supply system of communication power supply |
| CN202946113U (en) * | 2012-11-23 | 2013-05-22 | 尹洪生 | Thickened oil exploitation solar energy battery mixed power supply heating device |
| CN203640691U (en) * | 2014-01-01 | 2014-06-11 | 尹晓松 | Electric heater for applying renewable energy power generation to heavy oil recovery and oil pipelines |
| CN104079184A (en) * | 2014-06-23 | 2014-10-01 | 周细文 | Wind power converter based on bipolar direct-current structure |
| CN104600715A (en) * | 2014-12-31 | 2015-05-06 | 乌鲁木齐德旺源鑫节能环保科技有限公司 | Power rectifier harmonic reactive power compensation energy-saving electrical heating device |
| CN105048614A (en) * | 2015-07-31 | 2015-11-11 | 陈建国 | Circuit structure for permanent magnet alternator regulator |
| CN207117496U (en) * | 2017-06-30 | 2018-03-16 | 天津滨海光热技术研究院有限公司 | Joule heating device and the light field with electric heating function |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170915 |