Dual-pipeline switching gas-filling device of polycrystalline ingot furnace and control method thereof

An inflatable device, polycrystalline ingot technology, applied in the direction of polycrystalline material growth, chemical instruments and methods, crystal growth, etc., to ensure the normal growth of crystals, to ensure the effect of stable gas supply

Inactive Publication Date: 2015-05-13
JIANGSU ZHAOJING PHOTOELECTRIC TECH DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems caused by single gas path gas supply in production, the purpose of the present invention is to overcome the technical defects of existing equipment and provide a double-pipe conversion gas charging device for polycrystalline

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  • Dual-pipeline switching gas-filling device of polycrystalline ingot furnace and control method thereof

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Embodiment Construction

[0012] The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

[0013] A double-pipe conversion charging device for a polycrystalline ingot furnace, such as figure 1 As shown, it includes the first manual valve 1, the second manual valve 2, the third manual valve 3, the first flow meter 4, the fourth manual valve 5, the fifth manual valve 6, the second flow meter 7, the main airway 8 and auxiliary airway 9, the first manual valve 1, the second manual valve 2, the third manual valve 3 and the first flowmeter 4 are installed in series on the main airway 8, and the first flowmeter 4 is set on the second hand Between the movable valve 2 and the third manual valve 3, the main airway 8 is equipped with the inlet end of the first manual valve 1 and communicates with the argon tank 10, and the main airway 8 is equipped with the gas outlet end of the third manual valve 3 and The ingot furnace 11 is connected, the fourth ...

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Abstract

The invention provides a dual-pipeline switching gas-filling device of a polycrystalline ingot furnace and a control method thereof. The dual-pipeline switching gas-filling device comprises a first hand valve, a first hand valve, a third hand valve, a first flowmeter, a fourth hand valve, a fifth hand valve, a second flowmeter, a main gas channel and an auxiliary gas channel; the first hand valve, the second hand valve and the third hand valve as well as the first flowmeter are connected in series and mounted on the main gas channel; one end of the main gas channel is communicated with an argon tank, while the other end of the main gas channel is communicated with the ingot furnace; the fourth hand valve, the fifth hand valve and the second flowmeter are connected in series and mounted on the auxiliary gas channel; one end of the auxiliary gas channel is connected to the main gas channel between the first hand valve and the second hand valve, while the other end of the auxiliary gas channel is connected to the main gas channel between the third hand valve and the ingot furnace. The dual-pipeline intake switching pressure-maintaining device is adopted, and capable of automatically switching the auxiliary gas channel to supply gas into the ingot furnace, and no influence is caused on the production.

Description

Technical field: [0001] The invention relates to a polycrystalline ingot casting furnace intake pressure maintaining device, in particular to a polycrystalline ingot casting furnace double-pipe intake conversion pressure maintaining device. Background technique: [0002] In the field of solar cell technology, polycrystalline ingot casting is an indispensable and important link, that is, polycrystalline silicon ingots are cast from polycrystalline raw materials in a polycrystalline ingot casting furnace. The polycrystalline ingot casting furnace must ensure the pressure in the furnace during operation. In order to ensure normal operation and the output of good ingots, a flowmeter is installed at the argon gas inlet to judge the pressure in the furnace, and to adjust the flowmeter to maintain the balance of the pressure in the furnace. [0003] Most manufacturers using polycrystalline ingot casting furnaces use a single gas path for gas supply. If the flow meter is damaged, th...

Claims

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Application Information

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IPC IPC(8): C30B28/06C30B29/06
Inventor 王德明刘荣建季小军梅建华孙东
Owner JIANGSU ZHAOJING PHOTOELECTRIC TECH DEV
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