Novel thermocouple brick structure for hot arch top of glass melting furnace

Abstract

The invention discloses a novel thermocouple brick structure for a hot arch top of a glass melting furnace, which is characterized in that a temperature measuring hole is formed in a crown structure; the galvanic couple sleeve brick is placed in the temperature measuring hole, and the galvanic couple sleeve brick is longitudinally provided with a through hole; a blind hole is formed in the thermocouple brick; one end of the thermocouple brick penetrates through the through hole, and the bottom end of the thermocouple brick and the bottom end of the blind hole can extend out of the through hole. Through the application, the novel thermocouple brick structure for the hot arch top of the glass melting furnace is provided, the thermocouple sleeve brick and the thermocouple brick are adopted to measure the temperature in the furnace, the temperature measurement is more accurate, and the problem that the thermocouple cannot be pulled out and replaced after being damaged can be effectively solved; the device can be replaced for multiple times in the hot-state operation process of the melting furnace, and is simple and convenient to operate, safe and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of glass melting furnace temperature measurement and the like, and in particular to a novel thermocouple brick structure for a hot crown of a glass melting furnace. Background Art

[0002] Thermocouples are the most commonly used temperature measuring instruments in glass melting furnaces. The temperature of the melting section is generally used as a parameter for automatic temperature control of the melting furnace, so the accuracy of the temperature of the melting section is very important. Most domestic glass factories generally have problems such as insufficient temperature measurement accuracy of the thermocouples at the melting section and difficulty in replacing them after damage. For details, please refer to Figure 1 As shown, the general crown thermocouple adopts a non-penetrating installation method. The thermocouple brick 1' is directly installed in the large crown structure 2'. The thermocouple brick 1' adopts a blind hole. The thermocouple is placed in the blind hole of the thermocouple brick 1', so that the thermocouple measuring point is at a certain distance from the melting furnace. Therefore, there is a certain temperature difference between the measured temperature and the actual space temperature in the kiln. In addition, in the actual use of the crown thermocouple brick structure currently used, due to factors such as flame scouring and powder erosion, the blind hole under the thermocouple brick 1' is corroded and burned through, which is easy to cause premature damage to the thermocouple. Moreover, during use, once the temperature measuring hole of the thermocouple brick 1' is burned through, silicate condensate is easily formed in the hole and adheres to the corundum tube of the thermocouple, resulting in that even if the thermocouple is found to be damaged, it cannot be replaced because the thermocouple cannot be pulled out.

[0003] In view of the above problems existing in the prior art, a new type of thermocouple brick structure for the crown of a glass melting furnace is provided to solve the problem of temperature measurement accuracy of non-penetrating thermocouples, and effectively solve the problem that the thermocouple cannot be replaced because it cannot be pulled out after being damaged. This new type of thermocouple brick can be replaced multiple times during the hot operation of the melting furnace, and the operation is simple, convenient, safe and reliable. Summary of the invention

[0004] In view of this, in order to solve the above problems, the object of the present invention is to provide a new type of glass melting furnace hot crown thermocouple brick structure, which includes:

[0005] Large arch structure, thermocouple sleeve brick, thermocouple brick;

[0006] The large arch structure is provided with a temperature measuring hole;

[0007] The couple sleeve brick is placed inside the temperature measuring hole, and the couple sleeve brick is provided with a through hole in the longitudinal direction;

[0008] The thermocouple brick is provided with a blind hole;

[0009] One end of the thermocouple brick passes through the through hole, and the bottom end of the thermocouple brick and the bottom end of the blind hole can both extend out of the through hole.

[0010] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace, wherein the thermocouple sleeve brick is arranged in a wedge shape.

[0011] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace comprises an upper section and a lower section connected in sequence, wherein the lower section extends into the interior of the through hole, and the bottom end of the lower section extends out of the through hole.

[0012] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace, wherein the diameter of the upper section is greater than the diameter of the through hole.

[0013] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace, wherein the diameter of the lower section is smaller than the diameter of the through hole.

[0014] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace, wherein the bottom end of the lower section is arranged in an arc shape, and the bottom end of the blind hole is arranged in an arc shape.

[0015] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace, wherein the thermocouple sleeve brick and the thermocouple brick are both made of zero-expansion silica brick.

[0016] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace, wherein the diameter of the through hole is 120-140 mm.

[0017] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace, wherein the diameter of the lower section is 125-145 mm.

[0018] The above-mentioned novel thermocouple brick structure for the hot crown of a glass melting furnace has a gap between the outer wall of the lower section and the inner wall of the through hole, and the width of the gap is 5 mm.

[0019] Compared with the prior art, the above technical solution has the following positive effects:

[0020] Through the application of the present invention, a new type of thermocouple brick structure for the hot crown of a glass melting furnace is provided. In the present invention, thermocouple sleeve bricks and thermocouple bricks are used to measure the temperature in the kiln, which not only makes the temperature measurement more accurate, but also can effectively solve the problem that the thermocouple cannot be pulled out and replaced after being damaged. It can be replaced many times during the hot operation of the melting furnace, and the operation is simple, convenient, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the thermocouple brick structure in the prior art.

[0022] Figure 2 It is a schematic diagram of a novel thermocouple brick structure for the hot crown of a glass melting furnace according to the present invention.

[0023] Figure 3 It is a cross-sectional view of the electric couple sleeve brick in the present invention.

[0024] Figure 4 It is a cross-sectional view of the thermocouple brick in the present invention.

[0025] Figure 5 It is a top view of the thermocouple brick in the present invention.

[0026] In the prior art: 1', traditional thermocouple brick; 2', large crown structure.

[0027] This application: 1. Electric couple sleeve brick; 2. Large crown structure; 3. Temperature measuring hole; 4. Through hole; 5. Thermocouple brick; 6. Upper section; 7. Lower section; 8. Blind hole. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0029] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical contents.

[0030] like Figures 2 to 5 As shown, a novel thermocouple brick structure of a hot crown of a glass melting furnace according to a preferred embodiment is shown, wherein the structure comprises: a large crown structure 2, a thermocouple sleeve brick 1, and a thermocouple brick 5;

[0031] The large arch structure 2 is provided with a temperature measuring hole 3; the electric couple sleeve brick 1 is placed inside the temperature measuring hole 3, and the electric couple sleeve brick 1 is longitudinally provided with a through hole 4; a blind hole 8 is provided inside the thermocouple brick 5; one end of the thermocouple brick 5 passes through the through hole 4, and the bottom end of the thermocouple brick 5 and the bottom end of the blind hole 8 can both extend out of the through hole 4.

[0032] In actual use, first place the thermocouple sleeve brick 1 in the large crown structure 2, then extend the thermocouple brick 5 from the upper end of the through hole 4 into the through hole 4, and extend the lower end of the thermocouple brick 5 from the lower end of the through hole 4. At this time, the lower end of the blind hole 8 in the thermocouple brick 5 also extends out of the lower end of the through hole 4. When the thermocouple is placed in the blind hole 8, the thermocouple measuring point is exposed in the kiln, effectively solving the problem of non-penetrating thermocouple temperature measurement accuracy. And if the blind hole 8 in the thermocouple brick 5 is burned through, silicate condensate is easily formed in the hole and adheres to the corundum tube of the thermocouple. When it is found that the thermocouple is damaged and cannot be pulled out, the thermocouple brick 5 can be taken out together with the thermocouple for replacement.

[0033] The present invention also has the following implementation modes based on the above:

[0034] Furthermore, a novel thermocouple brick structure for the hot crown of a glass melting furnace is provided, wherein the thermocouple sleeve brick 1 is wedge-shaped. Specifically, the thermocouple sleeve brick 1 adopts a larger wedge-shaped brick, and the thermocouple sleeve brick 1 can also be divided into two pieces along the center line according to actual needs, making production and use more convenient.

[0035] Furthermore, a novel thermocouple brick structure for the hot crown of a glass melting furnace is provided, wherein the thermocouple brick 5 comprises an upper section 6 and a lower section 7 connected in sequence, the lower section 7 extends into the interior of the through hole 4, and the bottom end of the lower section 7 extends out of the through hole 4. Specifically, the upper section 6 of the thermocouple brick 5 is used to limit the thermocouple brick 5 as a whole inside the thermocouple sleeve brick 1, and the length of the lower section 7 is greater than the height of the thermocouple sleeve brick 1, so that the lower section 7 can extend out of the thermocouple sleeve brick 1 and be located in the kiln, thereby enabling the blind hole 8 to be directly located in the kiln, and the thermocouple in the blind hole 8 directly measures the temperature in the kiln.

[0036] Further, a novel glass melting furnace hot crown thermocouple brick structure is provided, wherein the diameter of the upper section 6 is larger than the diameter of the through hole 4. Specifically, the upper section 6 can be placed on the upper end of the thermocouple sleeve brick 1, and the lower section 7 directly penetrates into the through hole 4.

[0037] Furthermore, a new type of thermocouple brick structure for the hot crown of a glass melting furnace is provided, wherein the diameter of the lower section 7 is smaller than the diameter of the through hole 4.

[0038] Furthermore, a novel thermocouple brick structure for the hot crown of a glass melting furnace is provided, wherein the bottom end of the lower section 7 is arranged in an arc shape, and the bottom end of the blind hole 8 is arranged in an arc shape. Specifically, the bottom end of the lower section 7 and the bottom end of the blind hole 8 are arranged in an arc shape, so that when the measuring point of the thermocouple is placed at the bottom end of the blind hole 8, the thermocouple can measure the temperature in the kiln more accurately.

[0039] Furthermore, a novel thermocouple brick structure for the hot crown of a glass melting furnace is provided, wherein the thermocouple sleeve brick 1 and the thermocouple brick 5 are both made of zero-expansion silica brick. Specifically, the thermocouple sleeve brick 1 and the thermocouple brick 5 made of zero-expansion silica brick can effectively prevent the thermocouple sleeve brick 1 and the thermocouple brick 5 from being unable to be removed due to high-temperature expansion.

[0040] Furthermore, a novel thermocouple brick structure for the hot crown of a glass melting furnace is provided, wherein the diameter of the through hole 4 is 120-140 mm.

[0041] Furthermore, a new type of glass melting furnace hot crown thermocouple brick structure is provided, wherein the diameter of the lower section 7 is 125-145 mm.

[0042] Furthermore, a new type of glass melting furnace hot crown thermocouple brick structure is provided, wherein there is a gap between the outer wall of the lower section 7 and the inner wall of the through hole 4, and the width of the gap is 5 mm. Specifically, a gap is provided between the thermocouple sleeve brick 1 and the thermocouple brick 5, which can effectively prevent the thermocouple sleeve brick 1 from bonding with the thermocouple brick 5 when the blind hole 8 of the thermocouple brick 5 is burned through.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of thermocouple brick structure for the hot crown of a glass melting furnace, characterized in that: include: Large arch structure, thermocouple sleeve brick, thermocouple brick; The large arch structure is provided with a temperature measuring hole; The couple sleeve brick is placed inside the temperature measuring hole, and the couple sleeve brick is provided with a through hole in the longitudinal direction; The thermocouple brick is provided with a blind hole; One end of the thermocouple brick passes through the through hole, and the bottom end of the thermocouple brick and the bottom end of the blind hole can both extend out of the through hole.

2. A novel glass melting furnace hot crown thermocouple brick structure according to claim 1, characterized in that: The electric coupling sleeve brick is arranged in a wedge shape.

3. The novel thermocouple brick structure for the hot crown of a glass melting furnace according to claim 1 is characterized in that: The thermocouple brick comprises an upper section and a lower section which are connected in sequence, the lower section extends into the interior of the through hole, and the bottom end of the lower section extends out of the through hole.

4. A novel glass melting furnace hot crown thermocouple brick structure according to claim 3, characterized in that: The diameter of the upper section is greater than the diameter of the through hole.

5. The novel thermocouple brick structure for the hot crown of a glass melting furnace according to claim 1 is characterized in that: The diameter of the lower section is smaller than the diameter of the through hole.

6. The novel thermocouple brick structure for the hot crown of a glass melting furnace according to claim 1 is characterized in that: The bottom end of the lower section is arranged in an arc shape, and the bottom end of the blind hole is arranged in an arc shape.

7. The novel thermocouple brick structure for the hot crown of a glass melting furnace according to claim 1 is characterized in that: The thermocouple sleeve brick and the thermocouple brick are both made of zero-expansion silicon brick.

8. The novel thermocouple brick structure for the hot crown of a glass melting furnace according to claim 1 is characterized in that: The diameter of the through hole is 120-140 mm.

9. A novel glass melting furnace hot crown thermocouple brick structure according to claim 8, characterized in that: The diameter of the lower section is 125-145 mm.

10. A novel thermocouple brick structure for the hot crown of a glass melting furnace according to claim 9, characterized in that: There is a gap between the outer wall of the lower section and the inner wall of the through hole, and the width of the gap is 5 mm.

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