CN201801630U - Automatic crystal growing speed measuring device of photovoltaic polycrystalline silicon ingot production furnace - Google Patents
Automatic crystal growing speed measuring device of photovoltaic polycrystalline silicon ingot production furnace Download PDFInfo
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- CN201801630U CN201801630U CN2010205021266U CN201020502126U CN201801630U CN 201801630 U CN201801630 U CN 201801630U CN 2010205021266 U CN2010205021266 U CN 2010205021266U CN 201020502126 U CN201020502126 U CN 201020502126U CN 201801630 U CN201801630 U CN 201801630U
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- Prior art keywords
- servo
- polycrystalline silicon
- silicon ingot
- quartz pushrod
- servomotor
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 239000013078 crystal Substances 0.000 title abstract description 4
- 239000010453 quartz Substances 0.000 claims abstract description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 8
- 238000011161 development Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002210 silicon-based material Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to an automatic crystal growing speed control measuring device of a photovoltaic polycrystalline silicon ingot production furnace, which comprises a servo motor, a movement controller, a servo driver and a quartz rod, wherein the quartz rod is arranged above a crucible inside the photovoltaic polycrystalline silicon ingot production furnace through a mechanical device and can move in the vertical direction, the movement controller is in two-way connection with the servo driver through a movement control bus, the signal output end of the servo driver is connected with the signal input end of the servo motor through a power supply control wire, the signal input end of the servo driver is connected with the signal output end of the servo motor through a shaft coder feedback wire, and a rotating output shaft of the servo motor is connected with the quartz rod through a transmission mechanism. The utility model has the characteristics of high measuring precision and convenient debugging and regulation, can improve the polycrystalline silicon ingot production quality and can realize the measurement automation of the crystal growing speed.
Description
Technical field
The utility model belongs to the brilliant speed technical field of automation of length of photovoltaic polycrystalline silicon ingot or purifying furnace, relates to the brilliant speed self-operated measuring unit of photovoltaic polycrystalline silicon ingot casting furnace superintendent.
Background technology
Sun power is most important basic power source in the various renewable energy sources, and biomass energy, wind energy, sea energy, water energy etc. are all from sun power, and in a broad sense, sun power comprises above various renewable energy source.Sun power is a kind of as renewable energy source, then is meant the direct conversion and the utilization of sun power.By transfer equipment solar radiant energy is converted to the solar energy utilization technique that belongs to of heat energy utilization, utilize the solar energy thermal-power-generating that is called that heat energy generates electricity again; Belong to the solar energy generation technology to what solar radiant energy converted utilization of power to by photoelectric conversion device, photoelectric conversion device normally utilizes the photovoltaic effect principle of semiconducter device (solar cell) to carry out opto-electronic conversion, therefore claims solar-photovoltaic technology again.
United Nations has held a series of summit meetings that have the various countries leader to participate in, and discussion and formulation world's sun power strategic planning, international sun power pact are set up international sun power fund etc., promote the development and use of global solar and renewable energy source.Development and use sun power and renewable energy source become a big theme and the common action of international community, become the important content that various countries formulate the strategy of sustainable development.In State Commission for Restructuring the Economic Systems is listed research and development sun power and renewable energy technologies always by Chinese Government, has promoted the development of sun power and renewable energy technologies and industry greatly.Solar utilization technique is being researched and developed, is being commercially produced, all obtaining tremendous development aspect the market development, becomes fast, one of the new industry of steady progression.
Because silicon materials account for the overwhelming majority in the solar cell cost, the production cost that reduces silicon materials is the key of photovoltaic application.The polycrystalline silicon ingot casting technology is one of important channel that reduces the solar cell cost, and this technology has been saved expensive crystal-pulling process, also can use than the silicon of low-purity and make to throw furnace charge, and material and power consumption aspect are all economized.Casting ingot process mainly contains two kinds of directional solidification method and teeming practices.Directional solidification method is that the silicon material is placed in the crucible in addition fusion, and the pulling speed of controlling stay-warm case then forms low-temperature receiver to cause certain thermograde from crucible bottom, makes solid-liquid interface move up and form crystal ingot from crucible bottom.
About 60 hours work periods of photovoltaic polycrystalline silicon ingot or purifying furnace, about 24 hours time in long brilliant stage, shorten the ingot casting cycle in order to optimize the long brilliant time, existing implementation method is highly brilliant with quartz pushrod manual measurement one vice-minister every one hour in the long brilliant stage, the wasting manpower and material resources measures also very inaccurate.
Summary of the invention
Purpose of the present utility model is for solving the problem of prior art, propose the brilliant speed self-operated measuring unit of a kind of photovoltaic polycrystalline silicon ingot casting furnace superintendent, replacing the long brilliant speed method of manual measurement that falls behind.
The specific implementation method: the furnace roof at the photovoltaic polycrystalline silicon ingot or purifying furnace is installed a long brilliant self-operated measuring unit, this device is by motion controller control servo-driver, servo-driver control servomotor drives quartz pushrod by shaft joint and is moved toward crucible bottom by the crucible top, when quartz pushrod touches the brilliant position of crucible bottom length, servo-electric chance moment is in the stall state, and the overcurrent phenomenon appears, controller detects the just record brilliant height location value of length at that time of overcurrent signal, and send the servomotor inverted command immediately, finish one-shot measurement, repeated above-mentioned measuring process in one hour later on once more, finish the brilliant speed of photovoltaic polycrystalline silicon ingot casting furnace superintendent and measure automatically, this device recorded data also can or send to the third party by the standard communication port by the display screen demonstration and use.The utlity model has measuring accuracy height, debug setting characteristics easily, can improve the polycrystalline silicon ingot casting quality, realize long brilliant velocity survey automatization.
Characteristics of the present utility model and beneficial effect:
Characteristics of the present utility model are to adopt servo-control system to drive the brilliant speed of quartz pushrod realization photovoltaic polycrystalline silicon ingot casting furnace superintendent to measure automatically, the utlity model has measuring accuracy height, debug setting characteristics easily, can improve the polycrystalline silicon ingot casting quality, realize long brilliant velocity survey automatization.
Description of drawings
Fig. 1 is the brilliant velocity survey control of a photovoltaic polycrystalline silicon ingot casting furnace superintendent of the present utility model block diagram.
Fig. 2 is the brilliant velocity measuring device structural representation of photovoltaic polycrystalline silicon ingot casting furnace superintendent of the present utility model.
Embodiment
The brilliant velocity measuring device of the photovoltaic polycrystalline silicon ingot casting furnace superintendent that the utility model proposes reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
The brilliant speed self-operated measuring unit of photovoltaic polycrystalline silicon ingot casting furnace superintendent of the present utility model structured flowchart as shown in Figure 1; This device comprises: servomotor, motion controller, servo-driver, quartz pushrod; Described quartz pushrod is installed in the top of crucible in the photovoltaic polycrystalline silicon ingot casting body of heater by mechanism and can moves in the vertical direction; Described motion controller is connected by motion control bus and servo-driver are two-way, the signal output part of servo-driver is connected with the signal input part of servomotor by power control line, the signal input part of servo-driver is connected with the signal output part of servomotor by the shaft encoder feedback line, and the rotary output axis of servomotor links to each other with quartz pushrod by transmission rig.
Workflow of the present utility model is: this device by motion controller by the total line traffic control servo-driver of motion control, servo-driver control servomotor drives the original position point that quartz pushrod is moved upwards up to the crucible top, at this original position point, the following endvertex of quartz pushrod is in position zero point, at this moment, to read under the quartz pushrod position of endvertex by the motion control bus from servo-driver be zero to motion controller.
Servo-driver is connected with the control servomotor with the shaft encoder feedback line by power control line, and the shaft encoder feedback line feeds back to servo-driver to the real-time position information of motor (being the lower end vertex position information of quartz pushrod).Like this, motion controller just can be read the real-time position information (being the lower end vertex position information of quartz pushrod) of servomotor at any time from servo-driver by the motion control bus.
Servo-driver can detect the current information of servomotor by power control line, and therefore, motion controller can read the current information of servomotor from the servo-driver in real time by the motion control bus.
When measuring beginning, motion controller is by the total line traffic control servo-driver of motion control, servo-driver control servomotor drives quartz pushrod and moves down, by the crucible top, move toward crucible bottom by the crucible top, when quartz pushrod touches the brilliant position of crucible bottom length, servo-electric chance moment is in the stall state, and the overcurrent phenomenon appears, when motion controller detects overcurrent signal, just read the position data of endvertex under the quartz pushrod from servo-driver by the motion control bus, the position data of endvertex is exactly to send the servomotor inverted command immediately behind at that time the brilliant height value of length to be moved upwards up to crucible 7 sides for the servo driver drives servosystem under the motion controller record quartz pushrod, finish one-shot measurement, repeated above-mentioned measuring process in one hour later on once more, finish the brilliant speed of photovoltaic polycrystalline silicon ingot casting furnace superintendent and measure (this device recorded data also can be by demonstration on the display screen 20 that links to each other with motion controller, or obtains record data by the standard communication port on the display screen 20) automatically.
Above-mentioned working process is by being installed in the automatic process of measurement reality of the brilliant speed of length in the motion controller in advance, and this sequence of control is compiled for those skilled in the art adopt conventional programming instrument and technology.
The example structure of the utility model device comprises as shown in Figure 2: servomotor 1 and transmission rig thereof, quartz pushrod 14 and mechanism thereof, motion controller and servo-driver (not shown); Described quartz pushrod is installed in the top of crucible in the photovoltaic polycrystalline silicon ingot casting body of heater by mechanism and can moves in the vertical direction; Described motion controller is connected by motion control bus and servo-driver are two-way, the signal output part of servo-driver is connected with the signal input part of servomotor by power control line, the signal input part of servo-driver is connected with the signal output part of servomotor by the shaft encoder feedback line, and the rotary output axis of servomotor links to each other with quartz pushrod by transmission rig.This mechanism comprises the line slideway 12 of vertical support frame 11, vertical direction and is arranged on movable slider 13, L shaped plate 10, sighting tube 5, sealing-ring 16, corrugated tube 9 on the line slideway 12; The annexation of each parts is in the mechanism: vertical support frame 11 is fixed on the furnace roof 15, and line slideway 12 is fixed on the vertical support frame 11; Fixed L shape plate 10 on movable slider 13, fixedly connected with the upper end of quartz pushrod (promptly long brilliant height measuring probe) 14 in the lower end of L shaped plate 10, sealing-ring 16 is fixed on around the upper end of quartz pushrod 14, the upper surface of the lower surface of sealing circle 16 and corrugated tube 9 is fixed together, the lower end of corrugated tube 9 is fixedly connected on the furnace roof 15, quartz pushrod and moves up and down and moves with corrugated tube 9 in the stove outside part places corrugated tube 9; Sighting tube 5 is fixed in the furnace roof, quartz pushrod 14 pass the top warming plate 6 in hole on the furnace roof 15, the body of heater 1 the hole, pass sighting tube 5 again and extend the intravital crucible of stove 7 tops.
The transmission rig of servomotor 1 is made up of step-down gear 2, gear steering device 3 and shaft joint 4; The annexation of the transmission rig of servomotor is: described servomotor 1 is fixed on the vertical support frame 11, this servomotor 1 links together by step-down gear 2 and gear steering device 3, the output shaft of this gear steering device 3 is connected with the axle of line slideway 12, drives movable slider 13 and slides on line slideway 12.
Because L shaped plate 10 upper ends (vertically part) links together with movable slider 13, the lower end of L shaped plate 10 (horizontal component) fixedlys connected with the upper end of quartz pushrod 14, and thus, L shaped plate drives quartz pushrod 14 vertical shifting.
The specific embodiment of each parts of the utility model device is respectively described below:
The effective stroke of quartz pushrod of the present utility model is 500mm, and motion servo controller 16 of the present utility model adopts LMC20 series controller; The motion control bus adopts the CANOPEN bus; Servosystem 1 adopts BSH055 series; Step-down gear 1 adopts NUGENT series step-down gear.Power control line 21 and shaft encoder feedback line 22 adopt the standard matching component.Servo-driver adopts the LXM32AU90M2 series product.
Well-known device that other parts of the present utility model are this area or employing known technology means are made.
Claims (3)
1. the brilliant speed self-operated measuring unit of photovoltaic polycrystalline silicon ingot casting furnace superintendent is characterized in that this device comprises: servomotor, motion controller, servo-driver, quartz pushrod; Described quartz pushrod is installed in the top of crucible in the photovoltaic polycrystalline silicon ingot casting body of heater by mechanism and can moves in the vertical direction; Described motion controller is connected by motion control bus and servo-driver are two-way, the signal output part of servo-driver is connected with the signal input part of servomotor by power control line, the signal input part of servo-driver is connected with the signal output part of servomotor by the shaft encoder feedback line, and the rotary output axis of servomotor links to each other with quartz pushrod by transmission rig.
2. device according to claim 1 is characterized in that described mechanism comprises vertical support frame, line slideway and is arranged on movable slider, L shaped plate, sighting tube, sealing-ring, corrugated tube on the line slideway; The annexation of each parts is in the mechanism: vertical support frame is fixed on the furnace roof, and line slideway is fixed on the vertical support frame; Fixed L shape plate on movable slider, fixedly connected with the upper end of quartz pushrod in the lower end of L shaped plate, sealing-ring be fixed on quartz pushrod upper end around, the lower surface of sealing circle and the upper surface of corrugated tube are fixed together, the lower end of corrugated tube is fixedly connected on the furnace roof, quartz pushrod places in the corrugated tube in the stove outside part, and moves up and down and move with corrugated tube; Sighting tube is fixed in the furnace roof, and quartz pushrod passes sighting tube and extends the intravital crucible of stove top.
3. install according to claim 1, it is characterized in that described transmission rig is made up of step-down gear, gear steering device and shaft joint; The annexation of each parts of transmission rig is: described servomotor is fixed on the vertical support frame, this servomotor links together by step-down gear and gear steering device, the output shaft of this gear steering device is connected with the axle of line slideway (12) by shaft joint, drives movable slider (13) and goes up slip at line slideway (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205021266U CN201801630U (en) | 2010-08-23 | 2010-08-23 | Automatic crystal growing speed measuring device of photovoltaic polycrystalline silicon ingot production furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205021266U CN201801630U (en) | 2010-08-23 | 2010-08-23 | Automatic crystal growing speed measuring device of photovoltaic polycrystalline silicon ingot production furnace |
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| Publication Number | Publication Date |
|---|---|
| CN201801630U true CN201801630U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205021266U Expired - Fee Related CN201801630U (en) | 2010-08-23 | 2010-08-23 | Automatic crystal growing speed measuring device of photovoltaic polycrystalline silicon ingot production furnace |
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| Country | Link |
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| CN (1) | CN201801630U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962799A (en) * | 2010-08-23 | 2011-02-02 | 清华大学 | Crystal growth speed automatic measurement device for photovoltaic polycrystalline silicon ingot casting furnace |
| CN107805842A (en) * | 2017-11-13 | 2018-03-16 | 苏州晶樱光电科技股份有限公司 | A kind of crystal height measurement apparatus of polycrystalline silicon ingot or purifying furnace |
| CN114046721A (en) * | 2021-11-10 | 2022-02-15 | 中国农业大学 | Instrument and method for measuring growth rate of corn filaments on line |
-
2010
- 2010-08-23 CN CN2010205021266U patent/CN201801630U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962799A (en) * | 2010-08-23 | 2011-02-02 | 清华大学 | Crystal growth speed automatic measurement device for photovoltaic polycrystalline silicon ingot casting furnace |
| CN107805842A (en) * | 2017-11-13 | 2018-03-16 | 苏州晶樱光电科技股份有限公司 | A kind of crystal height measurement apparatus of polycrystalline silicon ingot or purifying furnace |
| CN114046721A (en) * | 2021-11-10 | 2022-02-15 | 中国农业大学 | Instrument and method for measuring growth rate of corn filaments on line |
| CN114046721B (en) * | 2021-11-10 | 2022-08-02 | 中国农业大学 | Instrument and method for measuring growth rate of corn filaments on line |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20140823 |
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| EXPY | Termination of patent right or utility model |