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Raw material gas supply device and glass synthesis method

A technology for supplying device and raw gas, applied in glass forming, glass deposition furnace, glass manufacturing equipment, etc., can solve the problems of tank pressure reduction, tank temperature fluctuation, raw gas flow fluctuation, etc. The effect of suppressing fluctuations and preventing a local drop in temperature

Active Publication Date: 2019-04-30
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this low-temperature part moves to the vicinity of the surface or approaches the temperature measuring part for controlling the temperature of the tank, the pressure of the tank may decrease or the temperature of the tank may fluctuate, which may lead to fluctuations in the flow rate of the raw material gas supplied into the reaction vessel.

Method used

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  • Raw material gas supply device and glass synthesis method
  • Raw material gas supply device and glass synthesis method
  • Raw material gas supply device and glass synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 2 It is a schematic sectional view of the raw material tank 2 which demonstrated Example 1 of the heat exchange part in the raw material gas supply apparatus 1. The heat exchange unit 61 is a spiral tube. The heat exchange unit 61 is provided in the liquid glass feedstock 21 of the raw material tank 2 . The dotted line 21a shows the position where the liquid level rises the most, and the solid line 21b shows the position where the liquid level drops the most. It is preferable that the heat exchange part 61 is provided so that it may always be located in liquid (inside of the liquid glass raw material 21) even if the liquid level of the glass raw material 21 fluctuates.

[0031] The heat exchange part 61 which is a spiral tube can lengthen the tube length of the part which contacts the liquid glass feedstock 21 in the raw material tank 2 compared with the case where this part is made into a straight tube. Therefore, the time for heat exchange in the liquid (in...

Embodiment 2

[0033] image 3It is a schematic sectional view of the raw material tank 2 for demonstrating Example 2 of the heat exchange part in the raw material gas supply apparatus 1. The heat exchange part 62 is a tube with a fluctuating inner diameter. Like the heat exchange part 61, it is preferable to install the heat exchange part 62 so that it may always be located in liquid (inside of the liquid glass feedstock 21) even if the liquid level of the glass raw material 21 fluctuates.

[0034] The heat exchange portion 62, which is a tube having a fluctuating inner diameter, has a lower portion of the tube in contact with the liquid glass feedstock 21 in the raw material tank 2 than a simple straight tube when the portion is a straight tube. surface area increases. That is, the heat exchange portion 62 can exchange heat in a larger amount than the portion in contact with the space 22 . Thereby, the temperature of the glass feedstock to be replenished can be brought closer to the tem...

Embodiment 3

[0036] Figure 4 It is a schematic sectional view of the raw material tank 2 for demonstrating Example 3 of the heat exchange part in the raw material gas supply apparatus 1. The heat exchange portion 63 is a tube of a folded shape that is folded at least once in the lateral direction. Like the heat exchange part 61, it is preferable that the heat exchange part 63 is provided so that it may always be located in liquid (inside of the liquid glass feedstock 21) even if the liquid level of the glass raw material 21 fluctuates.

[0037] The heat exchange part 63, which is a folded-shaped tube that folds back in the lateral direction, can lengthen the tube at the portion that contacts the liquid glass feedstock 21 in the raw material tank 2, compared to the case where the portion is not folded back and is a straight tube. length. Therefore, the heat exchange time in the liquid (in the glass feedstock 21 ) becomes longer than in the case of a straight pipe. That is, the heat exch...

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Abstract

When a glass raw material is supplied from a fluid supplement tank, the temperature in a raw material tank is prevented from locally descending due to the supplement glass raw material. The front end of a supplement tube (4) of a raw material tank side end (41) is inserted in the glass raw material 21. The part of the raw material tank side end (41) inserting the glass raw material has heat exchanger portion (6). Compared with a contact portion of the raw material tank side end (41) and the space (22) in the raw material tank (2), the heat exchanger portion (6) can perform a large amount of heat exchange.

Description

technical field [0001] The present invention relates to a raw material gas supply device and a method for synthesizing glass. Background technique [0002] As one type of device for supplying raw materials to an apparatus for manufacturing glass fine particle deposits, there is known a raw material gas supply device that replenishes glass raw material in an amount consumed in the synthesis of glass fine particles from a replenishment tank to a raw material tank through a supply pipe. . The end of the raw material tank side of the supply pipe is sometimes inserted into the raw material liquid from the upper surface of the raw material tank with a straight pipe (refer to Japanese Patent Application Publication No. 61-295249, Japanese Patent Application Publication No. 63-64735, Japanese Patent Application Publication No. No. Gazette), sometimes not inserted into the raw material solution (refer to Japanese Patent Application Laid-Open No. 63-8232). [0003] Usually, in the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B8/04
CPCC03B37/01807C03B19/1415C03B2207/87
Inventor 幅崎利已
Owner SUMITOMO ELECTRIC IND LTD