Apparatus for measuring temperature of glass melting furnace

Patent metadata

Field	Value
Publication number	US-10107688-B2
Application number	US-201314765645-A
Country	US
Kind code	B2
Filing date	May 16, 2013
Priority date	Feb 4, 2013
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

An apparatus for measuring the temperature of a glass melting furnace includes a glass window part which has a transparent glass window and is mounted to a temperature measurement hole of the glass melting furnace and extended outward from the glass melting furnace, and a camera part which has a thermographic camera to capture image of an inside of the glass melting furnace through the glass window part. The measuring apparatus supplies cooling gas into the through hole in upper and lower directions, thereby preventing the surface of the glass window from being covered with fumes, and confines heated gases and fumes to the glass melting furnace.

First claim

What is claimed is:

1. An apparatus for measuring a temperature of a glass melting furnace, the apparatus comprising:
a glass window part including
a flange plate mounted to a temperature measurement hole of the glass melting furnace and extended outward from the glass melting furnace,
a glass holder disposed over the flange plate and having guide steps, the guide steps being disposed on a surface of the glass holder and protruding from opposite sides of the surface of the glass holder,
a glass window unit separated from the glass holder and mounted on the glass holder in a sliding manner such that the glass window unit is able to be slidingly inserted into and drawn out of a space between the guide steps even while the glass melting furnace is in use, and
a glass window mounted on the glass window unit,
wherein each of the flange plate, the glass holder and the glass window unit has a through hole in a center portion thereof such that the through hole communicates with the temperature measurement hole, and the glass window is disposed outside the glass melting furnace;

a camera part including
a thermographic camera configured to capture image of an inside of the glass melting furnace through the through hole of the glass window part; and

a support disposed in an outside of and separately from the glass window part and the camera part,
wherein an end of the support is place on an outer surface of the flange plate, and the glass window part and the camera part are supported by the support such that the camera part is disposed above and not in contact with the glass window part.

2. The apparatus for measuring the temperature of the glass melting furnace according to claim 1 , wherein the glass window part comprises multiple layers that can be separated from and combined with each other.

3. The apparatus for measuring the temperature of the glass melting furnace according to claim 1 , wherein the glass window part is provided with at least one cooling gas flow path through which cooling gas is supplied from the outside of the glass window part.

4. The apparatus for measuring the temperature of the glass melting furnace according to claim 1 , wherein the glass window part further includes
a body plate disposed on the flange plate and coupled to the support to support the glass window part,
a body plate cover separated from the body plate, disposed on the body plate and forming a first cooling gas flow path for supplying cooling gas toward the temperature measurement hole, the cooling gas being supplied from the outside of the glass window part, and
a glass flange separated from the body plate cover, disposed on the body plate cover and forming a second cooling gas flow path for supplying the cooling gas toward the glass window, wherein the second cooling gas flow path is separated from the first cooling gas flow path.

5. The apparatus for measuring the temperature of the glass melting furnace according to claim 1 , wherein the glass window unit has a plate-shape and is provided with a plurality of glass windows arranged side by side on a same plane.

6. The apparatus for measuring the temperature of the glass melting furnace according to claim 1 , wherein the camera part further includes:
a casing provided with the thermographic camera and coupled to the support.

7. The apparatus for measuring the temperature of the glass melting furnace according to claim 6 , wherein the casing includes a double wall having a space therein to allow circulation of the cooling gas.

8. An apparatus for measuring a temperature of a glass melting furnace, the apparatus comprising:
a glass window part including
a flange plate mounted to a temperature measurement hole of the glass melting furnace and extended outward from the glass melting furnace,
a body plate disposed over the flange plate,
a glass holder disposed over the flange plate and having guide steps, the guide steps being disposed on a surface of the glass holder and protruding from opposite sides of the surface of the glass holder,
a glass window unit separated from the glass holder and mounted on the glass holder in a sliding manner such that the glass window unit is able to be slidingly inserted into and drawn out of a space between the guide steps even while the glass melting furnace is in use, and
a glass window mounted on the glass window unit,
wherein each of the flange plate, the body plate, the glass holder and the glass window unit has a through hole in a center portion thereof such that the through hole communicates with the temperature measurement hole, and the glass window is disposed outside the glass melting furnace and covers the through hole of the glass window unit;

a camera part including
a casing, and
a thermographic camera disposed inside the casing and configured to capture image of an inside of the glass melting furnace through the through hole of the glass window part; and

a support disposed in an outside of and separately from the glass window part and the camera part,
wherein an end of the support is place on an outer surface of the flange plate, and the body plate of the glass window part is coupled to the support for supporting the glass window part, and the casing of the camera part is coupled to the support for supporting the camera part such that the camera part is disposed above and not in contact with the glass window part.

9. The apparatus for measuring the temperature of the glass melting furnace according to claim 8 , wherein the glass window part further includes
a body plate cover separated from the body plate, disposed on the body plate and forming a first cooling gas flow path for supplying cooling gas toward the temperature measurement hole, the cooling gas being supplied from the outside of the glass window part, and
a glass flange separated from the body plate cover, disposed on the body plate cover and forming a second cooling gas flow path for supplying the cooling gas toward the glass window, wherein the second cooling gas flow path is separated from the first cooling gas flow path.

10. The apparatus for measuring the temperature of the glass melting furnace according to claim 9 , wherein the through hole of the glass flange is formed such that a diameter of an upper part thereof is greater than that of a lower part thereof, and
the through hole of the body plate cover is formed such that a diameter of a lower part thereof is greater than that of an upper part thereof.

11. The apparatus for measuring the temperature of the glass melting furnace according to claim 9 , wherein the glass window part further includes
a first guide ring disposed between the body plate cover and the body plate and configured to guide the cooling gas toward the temperature measurement hole, and
a second guide ring disposed between the glass flange and the body plate cover and configured to guide the cooling gas toward the glass window.

12. The apparatus for measuring the temperature of the glass melting furnace according to claim 8 , wherein the glass window unit has a plate-shape and includes a plurality of glass windows arranged side by side on a same plane.

13. The apparatus for measuring the temperature of the glass melting furnace according to claim 9 , wherein each of the body plate, the body plate cover, the glass flange and a glass holder has locking holes on the periphery of the through hole to fix each other.

14. The apparatus for measuring the temperature of the glass melting furnace according to claim 8 , wherein the casing includes a double wall having a space therein through which cooling gas flows.

Assignees

• Korea Hydro & Nuclear Power Co

Inventors

• Kim Deuk Man
• Kim Young Il
• Kim Cheon Woo

Classifications

• H04N23/51

  Housings · CPC title

• G01J2005/0081

  Physics · mapped topic

• G01J5/04 Primary

  Casings · CPC title

• G01J5/0875

  Windows; Arrangements for fastening thereof · CPC title

• G01J5/029

  Physics · mapped topic