CN202968132U - High-voltage starting device of polycrystalline silicon reduction furnace - Google Patents
High-voltage starting device of polycrystalline silicon reduction furnace Download PDFInfo
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- CN202968132U CN202968132U CN 201220622080 CN201220622080U CN202968132U CN 202968132 U CN202968132 U CN 202968132U CN 201220622080 CN201220622080 CN 201220622080 CN 201220622080 U CN201220622080 U CN 201220622080U CN 202968132 U CN202968132 U CN 202968132U
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- polycrystalline silicon
- starting device
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- voltage starting
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Abstract
The utility model discloses a high-voltage starting device of a polycrystalline silicon reduction furnace. The high-voltage starting device comprises a high voltage starting circuit which consists of a controlled silicon voltage regulator and a boosting transformer, wherein the current input terminal of the controlled silicon voltage regulator is electrically connected with a power supply of 380V; the current output terminal of the controlled silicon voltage regulator is electrically connected with the primary side coil of the boosting transformer; and two ends of the secondary side coil of the boosting transformer are electrically connected with two ends of the silicon core of a polycrystalline silicon respectively. The high-voltage starting device further comprises a center tap, wherein one end of the center tap is electrically connected with the center point of the secondary side coil of the boosting transformer; and the other end of the center tap is electrically connected with the earth. As the high-voltage starting device is used, the insulation design requirement of the two ends of the silicon core of the polycrystalline silicon to the earth is lowered; and the service lives of electrode insulation sleeves at the two ends of the silicon core of the polycrystalline silicon are prolonged, so that the economic benefit is improved.
Description
Technical field
The utility model relates to a kind of high pressure starting device of polysilicon reduction furnace.
Background technology
The function of high pressure starting device of polysilicon reduction furnace is that the polycrystalline silicon core of 130 ℃ of left and right in polycrystalline silicon reducing furnace is heated to 1100 ℃ of left and right.The polycrystalline silicon core presents the resistance of 100K Ω left and right 130 ℃ of left and right, present the resistance about 10 Ω 1100 ℃ of left and right.Therefore, low thermophase must apply the high pressure of 6-12KV at the polycrystalline silicon core, could produce the needed heating power that heats up.
In prior art, high pressure starting device of polysilicon reduction furnace adopts the 380V power supply to the power supply of thyristor regulating depressor, and the adjustable voltage of thyristor regulating depressor output is exported the adjustable voltage of maximum voltage 6-12KV again through step-up transformer.The high pressure of 6-12KV require on the one hand polycrystalline silicon core two ends to the earth according to higher insulating Design, reduced on the other hand the life-span of polycrystalline silicon core two end electrodes insulation covering.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high pressure starting device of polysilicon reduction furnace, both can reduce polycrystalline silicon core two ends to the insulating Design requirement of the earth, can extend again the life-span of polycrystalline silicon core two end electrodes insulation covering.
the technical solution of the utility model is achieved in that a kind of high pressure starting device of polysilicon reduction furnace, comprise a high-voltage starting circuit, described high-voltage starting circuit is comprised of a thyristor regulating depressor and a step-up transformer, the current input terminal of thyristor regulating depressor is electrically connected to the 380V power supply, the current output terminal of thyristor regulating depressor is electrically connected to the primary coil of step-up transformer, one end of the secondary coil of step-up transformer is electrically connected to a wherein end of polycrystalline silicon core, the other end of the secondary coil of step-up transformer is electrically connected to the other end of polycrystalline silicon core, also comprise a centre tap, a tapped end is electrically connected to the mid point of the secondary coil of step-up transformer, the tapped the other end is electrically connected to the earth.
The beneficial effects of the utility model are: both can reduce silicon core two ends to the insulating Design requirement of the earth, also can extend the life-span of silicon core two end electrodes insulation covering simultaneously, improve economic benefit.
Description of drawings
Fig. 1 is the circuit theory schematic diagram of the utility model high pressure starting device of polysilicon reduction furnace.
In figure: 1-thyristor regulating depressor, 2-step-up transformer, 3-centre tap, 4-polycrystalline silicon core, 201-primary coil, 202-secondary coil.
Embodiment
By reference to the accompanying drawings the utility model is described further:
as shown in Figure 1, the present embodiment high pressure starting device of polysilicon reduction furnace comprises a high-voltage starting circuit and a centre tap 3, described high-voltage starting circuit is comprised of a thyristor regulating depressor 1 and a step-up transformer 2, the current input terminal of thyristor regulating depressor 1 is electrically connected to the 380V power supply, the current output terminal of thyristor regulating depressor 1 is electrically connected to the primary coil 201 of step-up transformer 2, one end of the secondary coil 202 of step-up transformer 2 is electrically connected to a wherein end of polycrystalline silicon core 4, the other end of the secondary coil 202 of step-up transformer 2 is electrically connected to the other end of polycrystalline silicon core 4, one end of centre tap 3 is electrically connected to the mid point of the secondary coil 202 of step-up transformer 2, the other end of centre tap 3 is electrically connected to the earth.
In the high pressure starting device of polysilicon reduction furnace of the present embodiment, the two ends of polycrystalline silicon core 4 are that step-up transformer 2 is exported half of maximum voltages to the insulation voltage of the earth.On the one hand reduce polycrystalline silicon core 4 two ends to the insulating Design requirement of the earth, extended on the other hand the life-span of polycrystalline silicon core 4 two end electrodes insulation coverings; Simultaneously can guarantee the heating power of polycrystalline silicon core 4 again.
Above-described embodiment is only for illustrating that clearly the utility model creates example, and is not the utility model to be created the restriction of embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.All any apparent variation or changes being extended out within spirit of the present utility model and principle still are among the protection domain of the utility model creation claim.
Claims (1)
1. high pressure starting device of polysilicon reduction furnace, comprise a high-voltage starting circuit, described high-voltage starting circuit is comprised of a thyristor regulating depressor (1) and a step-up transformer (2), the current input terminal of thyristor regulating depressor (1) is electrically connected to the 380V power supply, the current output terminal of thyristor regulating depressor (1) is electrically connected to the primary coil (201) of step-up transformer (2), one end of the secondary coil (202) of step-up transformer (2) is electrically connected to a wherein end of polycrystalline silicon core (4), the other end of the secondary coil (202) of step-up transformer (2) is electrically connected to the other end of polycrystalline silicon core (4), it is characterized in that, also comprise a centre tap (3), one end of centre tap (3) is electrically connected to the mid point of the secondary coil (202) of step-up transformer (2), the other end of centre tap (3) is electrically connected to the earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622080 CN202968132U (en) | 2012-11-21 | 2012-11-21 | High-voltage starting device of polycrystalline silicon reduction furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622080 CN202968132U (en) | 2012-11-21 | 2012-11-21 | High-voltage starting device of polycrystalline silicon reduction furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202968132U true CN202968132U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220622080 Expired - Fee Related CN202968132U (en) | 2012-11-21 | 2012-11-21 | High-voltage starting device of polycrystalline silicon reduction furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202968132U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129788A (en) * | 2014-08-11 | 2014-11-05 | 重庆大全泰来电气有限公司 | System for starting polycrystalline silicon reduction furnace |
| CN113567747A (en) * | 2021-07-26 | 2021-10-29 | 四川英杰电气股份有限公司 | Silicon core resistance value detection circuit, method and system |
-
2012
- 2012-11-21 CN CN 201220622080 patent/CN202968132U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129788A (en) * | 2014-08-11 | 2014-11-05 | 重庆大全泰来电气有限公司 | System for starting polycrystalline silicon reduction furnace |
| CN104129788B (en) * | 2014-08-11 | 2015-12-09 | 重庆大全泰来电气有限公司 | A kind of start up system of polycrystalline silicon reducing furnace |
| CN113567747A (en) * | 2021-07-26 | 2021-10-29 | 四川英杰电气股份有限公司 | Silicon core resistance value detection circuit, method and system |
| CN113567747B (en) * | 2021-07-26 | 2023-11-17 | 四川英杰电气股份有限公司 | Silicon core resistance detection circuit, method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131121 |