阅读说明：本技术 用于铂金通道高温区域的u形高锆砖结构及其应用方法 (U-shaped high-zirconium brick structure for platinum channel high-temperature area and application method thereof ) 是由 王梦龙 杨威 王苍龙 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种用于铂金通道高温区域的U形高锆砖结构,包括U形高锆砖本体和密封条砖,所述高锆砖本体的侧壁由顶部自上而下开设有用于安装侧部热电偶丝的安装槽,所述安装槽与所述高锆砖本体的U形槽连通；所述密封条砖用于密封所述安装槽,所述密封条砖与所述安装槽匹配安装,且所述密封条砖的底部与所述安装槽的底部之间设置有用于所述侧部热电偶丝穿出的通孔；所述高锆砖本体的U形槽内用于安装铂金通道,所述侧部热电偶丝的一端连接在所述铂金通道的侧壁上,所述通孔的位置正对所述侧部热电偶丝与所述铂金通道的连接点位置。本发明能降低通道高温对热电偶丝的影响范围,进而提升热电偶的使用寿命及其测量准确性。(The invention discloses a U-shaped high-zirconium brick structure for a platinum channel high-temperature area, which comprises a U-shaped high-zirconium brick body and a sealing strip brick, wherein the side wall of the high-zirconium brick body is provided with a mounting groove for mounting a side thermocouple wire from top to bottom, and the mounting groove is communicated with a U-shaped groove of the high-zirconium brick body; the sealing bar brick is used for sealing the mounting groove, the sealing bar brick is mounted in a matching manner with the mounting groove, and a through hole for the side thermocouple wire to penetrate out is formed between the bottom of the sealing bar brick and the bottom of the mounting groove; the U-shaped groove of the high-zirconium brick body is used for installing a platinum channel, one end of the side thermocouple wire is connected to the side wall of the platinum channel, and the position of the through hole is over against the connecting point position of the side thermocouple wire and the platinum channel. The invention can reduce the influence range of the high temperature of the channel on the thermocouple wire, thereby improving the service life of the thermocouple and the measurement accuracy thereof.)

1. A U-shaped high zirconium brick structure for a platinum channel high-temperature area is characterized in that: the high-zirconium block comprises a U-shaped high-zirconium block body (1) and sealing strip bricks (3), wherein the side wall of the high-zirconium block body (1) is provided with a mounting groove (1-1) for mounting a side thermocouple wire (6) from top to bottom, and the mounting groove (1-1) is communicated with the U-shaped groove of the high-zirconium block body (1); the sealing strip brick (3) is used for sealing the mounting groove (1-1), the sealing strip brick (3) is mounted in a matching manner with the mounting groove (1-1), and a through hole for the side thermocouple wire (6) to penetrate out is formed between the bottom of the sealing strip brick (3) and the bottom of the mounting groove (1-1); the U-shaped inslot of high zirconium brick body (1) is used for installing platinum passageway (4), the one end of lateral part thermocouple wire (6) is connected on the lateral wall of platinum passageway (4), the position of through-hole is just right lateral part thermocouple wire (6) with the hookup point position of platinum passageway (4).

2. The U-shaped high zirconium brick structure for the high temperature zone of platinum channel according to claim 1, wherein: the bottom of the mounting groove (1-1) is provided with a first arc-shaped groove (1-2), the bottom of the sealing bar brick (3) is provided with a second arc-shaped groove (3-1), and the first arc-shaped groove (1-2) and the second arc-shaped groove (3-1) form the through hole for the side thermocouple wire (6) to penetrate out.

3. The U-shaped high zirconium brick structure for the high temperature zone of platinum channel according to claim 1, wherein: the width of mounting groove (1-1) is 15 ~ 20mm, after sealing strip brick (3) inserted mounting groove (1-1), its top with the top parallel and level of high zirconium brick body (1).

4. The U-shaped high zirconium brick structure for the high temperature zone of platinum channel according to claim 1, wherein: the thickness of two side walls and the thickness of the bottom of the high-zirconium brick body (1) are both 65-80 mm.

5. The U-shaped high zirconium brick structure for the high temperature zone of platinum channel according to claim 1, wherein: the arc radius of the U-shaped groove of the high-zirconium brick body (1) is equal to the distance from the arc end to the top of the U-shaped groove; when in use, the central axis of the platinum channel (4) is coincident with the central axis of the U-shaped groove.

6. The U-shaped high zirconium brick structure for the high temperature zone of platinum channel according to claim 1, wherein: the top of the high-zirconium brick body (1) is provided with a cover plate brick (2), and the cover plate brick (2) is used for sealing an opening at the upper part of a U-shaped groove of the high-zirconium brick body (1); the novel thermocouple junction box is characterized in that a through hole for penetrating out of a top thermocouple wire (5) is formed in the cover plate brick (2), one end of the top thermocouple wire (5) is connected to the top of the platinum channel (4), and the position of the through hole formed in the cover plate brick (2) is right opposite to the position of a connecting point of the top thermocouple wire (5) and the platinum channel (4).

7. The U-shaped high zirconium brick structure for the high temperature zone of platinum channel according to claim 6, wherein: the thickness of apron brick (2) is 65 ~ 80mm, the outline of apron brick (2) with the top outline matching of high zirconium brick body (1).

8. The U-shaped high zirconium brick structure for the high temperature zone of platinum channel according to claim 6, wherein: work as platinum passageway (4) are installed back in the U-shaped groove of high zirconium brick body (1), platinum passageway (4) with the clearance of 15 ~ 20mm remains in the U-shaped inslot wall of high zirconium brick body (1), platinum passageway (4) with the lower terminal surface of apron brick (2) remains the clearance of 15 ~ 20mm, the clearance is used for filling filler (7).

9. The U-shaped high zirconium brick structure for use in a high temperature zone of a platinum channel according to claim 8, wherein: the filling material (7) is selected from a zirconium material, and the zirconium material at least contains 85 percent of ZrO₂。

10. The application method of the U-shaped high-zirconium brick structure for the high-temperature area of the platinum channel as claimed in any one of claims 1 to 9, wherein the application method comprises the following steps: firstly, the platinum channel (4) is placed into a U-shaped groove from an opening at the upper part of the U-shaped groove of the high-zirconium brick body (1), and meanwhile, the side thermocouple wire (6) is moved downwards to the bottom along the mounting groove (1-1); then, inserting the sealing strip brick (3) into the mounting groove (1-1), wherein one end of the side thermocouple wire (6) extends out of a through hole formed by the bottom of the sealing strip brick (3) and the bottom of the mounting groove (1-1); then, filling a gap between the platinum channel (4) and the inner wall of the U-shaped groove of the high-zirconium brick body (1) with the filling material (7), and enabling the filling material (7) to be flush with the upper part of the U-shaped groove of the high-zirconium brick body (1); and finally, penetrating one end of the top thermocouple wire (5) out of the through hole in the cover plate brick (2), and covering the cover plate brick (2) on the upper part of the U-shaped groove of the high-zirconium brick body (1).

Technical Field

The invention belongs to the technical field of substrate glass manufacturing, and particularly relates to a U-shaped high-zirconium brick structure for a platinum channel high-temperature area and an application method thereof.

Background

In the production and manufacturing process of TFT-LCD substrate glass, temperature is a vital parameter index, the most effective means for monitoring the internal temperature of equipment at high temperature is to install thermocouples, the types of the thermocouples are very many, and the thermocouples with different principles and types are selected according to different application scenes and test conditions, so that the most accurate and reliable temperature monitoring is realized.

At present, a welding type thermocouple is mainly adopted for monitoring the temperature of a platinum channel, a double-wire end is welded at a monitoring point of a platinum body, and then a proper wire outlet position is selected according to the structural morphology of the channel and an external refractory material. Specifically, in the platinum channel installation scheme in the prior art, the thermocouple wire needs to be led out in different directions according to the matching of the internal refractory material and the platinum channel, and there is basically a length that the thermocouple wire at least winds around the platinum pipe diameter 1/4, which means that the thermocouple wire has more areas in the refractory material to bear high temperature above 1600 ℃, which is very challenging for the thermocouple wire with a diameter of only 1.0mm, and through long-term high-temperature oxidation, volatilization of the thermocouple wire can continuously occur, the wire diameter of the thermocouple wire can be gradually reduced, and a large amount of Pt oxide can be recrystallized near the thermocouple wire, especially the root area can be adhered and connected due to the attachment of crystals, which can affect the temperature measurement accuracy of the thermocouple, and finally can also cause the sharp reduction of the strength of the thermocouple until the thermocouple wire is broken and fails.

In summary, considering factors such as expansion and installation, the wire outlet position of the channel thermocouple wire in the prior art has a larger curve path from the temperature monitoring point, which results in a larger length of the thermocouple wire in a high-temperature area between the refractory material and the platinum channel, and the property of the thermocouple wire is easily changed after a period of high-temperature oxidation, thereby affecting the potential difference generated inside and finally causing distortion of temperature, namely, the thermocouple can attenuate the displayed value of the temperature along with the time extension, thereby affecting the real process control, even the thermocouple wire is continuously volatilized or even broken after being subjected to the high-temperature oxidation for a long time, and affecting the service life.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a U-shaped high-zirconium brick structure for a platinum channel high-temperature area and an application method thereof, and aims to reduce the influence range of the channel high temperature on a thermocouple wire and further improve the service life of the thermocouple and the measurement accuracy of the thermocouple.

In order to solve the technical problems, the invention solves the problems by the following technical scheme:

a U-shaped high-zirconium brick structure for a platinum channel high-temperature area comprises a U-shaped high-zirconium brick body and a sealing strip brick, wherein a mounting groove for mounting a side thermocouple wire is formed in the side wall of the high-zirconium brick body from top to bottom, and the mounting groove is communicated with a U-shaped groove of the high-zirconium brick body; the sealing bar brick is used for sealing the mounting groove, the sealing bar brick is mounted in a matching manner with the mounting groove, and a through hole for the side thermocouple wire to penetrate out is formed between the bottom of the sealing bar brick and the bottom of the mounting groove; the U-shaped groove of the high-zirconium brick body is used for installing a platinum channel, one end of the side thermocouple wire is connected to the side wall of the platinum channel, and the position of the through hole is over against the connecting point position of the side thermocouple wire and the platinum channel.

Furthermore, a first arc-shaped groove is formed in the bottom of the mounting groove, a second arc-shaped groove is formed in the bottom of the sealing bar brick, and the first arc-shaped groove and the second arc-shaped groove form the through hole through which the side thermocouple wire penetrates out.

Further, the width of mounting groove is 15 ~ 20mm, sealed brick strip inserts behind the mounting groove, its top with the top parallel and level of high zirconium brick body.

Furthermore, the thickness of the two side walls and the thickness of the bottom of the high-zirconium brick body are both 65-80 mm.

Further, the arc radius of the U-shaped groove of the high-zirconium brick body is equal to the distance from the arc end to the top of the U-shaped groove; when in use, the central axis of the platinum channel is coincided with the central axis of the U-shaped groove.

Furthermore, a cover plate brick is arranged at the top of the high-zirconium brick body and used for sealing an opening at the upper part of the U-shaped groove of the high-zirconium brick body; the cover plate brick is provided with a through hole for the top thermocouple wire to penetrate out, one end of the top thermocouple wire is connected to the top of the platinum channel, and the position of the through hole formed in the cover plate brick is opposite to the position of a connecting point of the top thermocouple wire and the platinum channel.

Further, the thickness of apron brick is 65 ~ 80mm, the outline of apron brick with the top outline matching of high zirconium brick body.

Further, after the platinum channel is installed in the U-shaped groove of the high-zirconium brick body, a gap of 15-20mm is reserved between the platinum channel and the inner wall of the U-shaped groove of the high-zirconium brick body, a gap of 15-20mm is reserved between the platinum channel and the lower end face of the cover plate brick, and the gap is used for filling filler.

Furthermore, the filling material is selected from a zirconium material, and the zirconium material at least contains 85 percent of ZrO₂。

An application method of a U-shaped high-zirconium brick structure for a high-temperature area of a platinum channel comprises the following steps: firstly, placing the platinum channel into a U-shaped groove from an opening at the upper part of the U-shaped groove of the high-zirconium brick body, and simultaneously, moving the side thermocouple wires downwards to the bottom along the mounting groove; then, inserting the sealing bar brick into the mounting groove, wherein one end of the side thermocouple wire extends out of a through hole formed by the bottom of the sealing bar brick and the bottom of the mounting groove; filling a gap between the platinum channel and the inner wall of the U-shaped groove of the high-zirconium brick body with the filler, and enabling the filler to be flush with the upper part of the U-shaped groove of the high-zirconium brick body; and finally, penetrating one end of the top thermocouple wire out of the through hole in the cover plate brick, and covering the cover plate brick on the upper part of the U-shaped groove of the high-zirconium brick body.

Compared with the prior art, the invention has at least the following beneficial effects: the invention relates to a U-shaped high-zirconium brick structure for a platinum channel high-temperature area, wherein the side wall of a high-zirconium brick body is provided with a mounting groove for mounting a side thermocouple wire from top to bottom, and the mounting groove is communicated with a U-shaped groove of the high-zirconium brick body; the sealing bar brick is used for sealing the mounting groove, the sealing bar brick is mounted in a matching manner with the mounting groove, and a through hole for allowing the side thermocouple wire to penetrate out is formed between the bottom of the sealing bar brick and the bottom of the mounting groove; the U-shaped inslot of high zirconium brick body is used for installing the platinum passageway, and the one end of lateral part thermocouple wire is connected on the lateral wall of platinum passageway, and the position of through-hole is just to the tie point position of lateral part thermocouple wire and platinum passageway. According to the thermocouple wire, the U-shaped high-zirconium brick outside the platinum channel is redesigned, and the thermocouple wire is matched with a corresponding installation method, so that the thermocouple wire can be vertically led out from the platinum channel to the outside, and the distribution length of the thermocouple wire inside the U-shaped brick is greatly reduced due to vertical leading-out, and the influence range of high temperature inside the U-shaped brick on the thermocouple wire is further reduced. In the original structure, no specific hole is formed in the U-shaped brick, all thermocouples are led out from the top cover plate brick, thermocouple wires need to be led out only by winding 1/4 circumferential length inside, the length of the thermocouple wires at high temperature inside is too long, and risks are greatly increased. In conclusion, the thermocouple wire measuring device can reduce the influence range of the high temperature of the channel on the thermocouple wire, and further improves the service life of the thermocouple and the measurement accuracy of the thermocouple.

Furthermore, a first arc-shaped groove is formed in the bottom of the mounting groove, a second arc-shaped groove is formed in the bottom of the sealing bar brick, and a through hole structure formed by the first arc-shaped groove and the second arc-shaped groove is used for vertically leading out a thermocouple wire on the side portion of the platinum channel. And the first arc-shaped groove and the second arc-shaped groove are designed mainly for considering the installation problem, because the gap between the platinum channel and the U-shaped brick is only 15-20mm, if the platinum channel is directly dropped into the U-shaped brick, the thermocouple at the side part is led out again, the operation space is limited, and the root of the fragile thermocouple can be disturbed and damaged, therefore, the mode of slotting the side part of the U-shaped brick is adopted, the thermocouple wire is synchronously put down while the thermocouple is installed, the thermocouple wire is put in place in one step, the final vertical leading-out requirement is realized, and the influence of the installation process on the thermocouple is minimized.

Further, the width of mounting groove is 15 ~ 20mm, and the space when two thermocouple wires are placed downwards in the mounting groove can not the undersize, and its size of two thermocouple wires and outside protection architecture also is about 10 ~ 13mm, and realization installation that can be smooth, mounting groove can not be too wide in addition, though simple to operate, but leads to open-ended too big simultaneously, and later stage intensification process can decline to this regional sealing ability.

Furthermore, the thickness of the two side walls and the thickness of the bottom of the high-zirconium brick body are both 65-80 mm, the thickness is designed according to the total weight of the whole platinum channel, the basic supporting strength at high temperature needs to be guaranteed, and the thickness of a fixed parameter in the range is adopted to form the same batch and specification and facilitate processing.

Further, the arc radius of the U-shaped groove of the high-zirconium brick body is equal to the distance from the arc end to the top of the U-shaped groove; when the novel U-shaped high-zirconium brick is used, the central axis of the platinum channel coincides with the central axis of the U-shaped groove, and the coincidence of the two central lines can ensure that gaps between the platinum channel and the high-zirconium brick in the upper, lower, left, right, left and right directions are consistent after the cover plate brick is installed on the U-shaped high-zirconium brick.

Further, offer the through-hole that is used for the top thermocouple wire to wear out on the apron brick, the top at the platinum passageway is connected to the one end of top thermocouple wire, the through-hole position of seting up on the apron brick is just to the tie point position of top thermocouple wire and platinum passageway, platinum passageway top welded thermocouple, for guaranteeing its same perpendicular wire of going out, it has the through-hole to open equally on the apron brick of top, because the thermocouple is located platinum passageway top highest point, therefore the through-hole is unanimous with the top thermocouple in the left and right sides direction of brick, for the central point of width direction structure, finally realize that same perpendicular is drawn forth.

Further, the thickness of apron brick is 65 ~ 80mm, and the outline of apron brick matches with the top outline of high zirconium brick body, and the thickness of apron brick is the same with the design of U type high zirconium brick thickness, guarantees that the structure that final apron brick and the equipment of U type high zirconium brick formed is the square, and the platinum passageway is located its central point, and whole and platinum passageway interval are the same.

Further, after the platinum channel is installed in the U-shaped groove of the high-zirconium brick body, a gap of 15-20mm is reserved between the platinum channel and the inner wall of the U-shaped groove of the high-zirconium brick body, a gap of 15-20mm is reserved between the platinum channel and the lower end face of the cover plate brick, the gap is used for filling a filler, operation is facilitated, the gap is the same in the vertical direction, the left gap and the right gap, and the sealing and supporting effects on the whole platinum channel are guaranteed.

An application method of a U-shaped high-zirconium brick structure for a high-temperature area of a platinum channel comprises the following steps: firstly, placing a platinum channel into a U-shaped groove from an opening at the upper part of the U-shaped groove of a high-zirconium brick body, and simultaneously, moving a thermocouple wire at the side part downwards to the bottom along an installation groove; then, inserting the sealing bar brick into the mounting groove, wherein one end of the side thermocouple wire extends out of the bottom of the sealing bar brick and a through hole formed at the bottom of the mounting groove; filling a gap between the platinum channel and the inner wall of the U-shaped groove of the high-zirconium brick body with a filling material, and enabling the filling material to be flush with the upper part of the U-shaped groove of the high-zirconium brick body; and finally, penetrating one end of the top thermocouple wire out of the through hole in the cover plate brick, and covering the cover plate brick on the upper part of the U-shaped groove of the high-zirconium brick body. Therefore, in the whole operation process of the invention, firstly, the protection of the thermocouple must be ensured, and the impact and the stretching are avoided. Whole installation flow can guarantee that the platinum passageway can be located high-zirconium brick central point and put, makes the distance of its four directions keep unanimous to guarantee that the sealed effect all directions of heat preservation are the same, and realize that top and lateral part thermocouple wire homoenergetic draw forth perpendicularly, fall to the length of thermocouple wire in inside high temperature region to minimum, finally realize life-prolonging's purpose.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the three-dimensional structure of a U-shaped high-zirconium brick of the invention;

FIG. 2 is a schematic view of the construction of a sealing bar brick of the present invention;

FIG. 3 is a schematic front view of an assembly structure of a U-shaped high-zirconium brick and a platinum channel according to the present invention;

FIG. 4 is a schematic side view of the U-shaped high-zirconium brick and platinum channel assembly of the present invention;

FIG. 5 is a side view of the overall structure of a platinum channel of the present invention.

In the figure: 1. a high zirconium brick body; 1-1, mounting grooves; 1-2, a first arc-shaped groove; 2. a cover plate brick; 3. sealing the bar bricks; 3-1, a second arc-shaped groove; 4. a platinum channel; 5. a top thermocouple wire; 6. a side thermocouple wire; 7. and (3) a filling material.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As a specific embodiment of the present invention, referring to fig. 1, fig. 2, fig. 3 and fig. 4, the U-shaped high-zirconium brick structure for a platinum channel high-temperature region of the present invention comprises a U-shaped high-zirconium brick body 1, a cover plate brick 2 and a sealing strip brick 3, wherein the high-zirconium brick body 1 is made of an electrofused high-zirconium material and has a capability of resisting high temperatures above 1600 ℃. Since the process temperature of the platinum channel 4 in this region is above 1600 ℃, the high-zirconium brick in peripheral contact with the platinum channel 4 must also withstand temperatures above 1600 ℃ without deformation and be stable in properties.

As shown in fig. 1, which is a schematic structural diagram of a high-zirconium brick, a platinum channel 4 is installed in a U-shaped groove of a high-zirconium brick body 1, the overall dimension of the high-zirconium brick body 1 is synchronously adjusted according to the diameter of the platinum channel 4, and one end of a side thermocouple wire 6 is connected to the side wall of the platinum channel 4; the arc radius of the U-shaped groove of the high-zirconium brick body 1 is equal to the distance from the arc end to the top of the U-shaped groove; in use, the central axis of the platinum channel 4 coincides with the central axis of the U-shaped channel. The thickness of high zirconium brick body 1 needs to satisfy basic structural strength guarantee, and consequently the both sides wall thickness and the bottom thickness of high zirconium brick body 1 are 65 ~ 80mm, and is preferred, and the both sides wall thickness and the bottom thickness design of high zirconium brick body 1 are 75 mm. The side wall of the high-zirconium brick body 1 is provided with a mounting groove 1-1 used for mounting the side thermocouple wire 6 from top to bottom, the mounting groove 1-1 is communicated with a U-shaped groove of the high-zirconium brick body 1, and the mounting groove 1-1 is used for synchronous mounting and moving of the side thermocouple wire 6 and the platinum channel 4. Preferably, the width of the mounting groove 1-1 is 15-20mm, and in the embodiment, the width of the mounting groove 1-1 is 15 mm. The width of the mounting groove 1-1 is 15-20mm, the operating space for mounting the thermocouple wires needs to be met mainly according to the outer contour sizes of the two thermocouple wires, but the width is not too large, otherwise the problem of poor heat preservation and sealing of the internal platinum channel 4 is caused.

As shown in fig. 2, the sealing bar brick 3 is used for sealing the mounting groove 1-1, the sealing bar brick 3 is mounted in a matching manner with the mounting groove 1-1, a through hole for the side thermocouple wire 6 to penetrate out is arranged between the bottom of the sealing bar brick 3 and the bottom of the mounting groove 1-1, and in order to ensure that the side thermocouple wire 6 penetrates out of the through hole and is perpendicular to the platinum channel 4, the position of the through hole needs to be opposite to the position of a connecting point of the side thermocouple wire 6 and the platinum channel 4.

As a preferred embodiment of the present invention, the sealing bar brick 3 is made of an electric melting high zirconium material, and the thickness direction size of the sealing bar brick is the same as the thickness of one side of the high zirconium brick body 1, and preferably, the thickness of the sealing bar brick 3 is 75 mm; the width of the high-zirconium brick is the same as that of a side mounting groove 1-1 of the high-zirconium brick body 1, and the negative tolerance is 1.0mm, so that the high-zirconium brick is convenient to mount. After the sealing strip brick 3 is completely inserted into the mounting groove 1-1, the top of the sealing strip brick is flush with the top of the high-zirconium brick body 1. After the sealing strip brick 3 is finally inserted into the mounting groove 1-1, the whole high-zirconium brick body 1 is complete in structure, no seam or gap is formed on the side part, and only a round hole for wire is reserved.

Referring to fig. 1, 2 and 4, as a preferred embodiment of the present invention, a first arc-shaped groove 1-2 is formed at the bottom of the mounting groove 1-1, a second arc-shaped groove 3-1 is formed at the bottom of the sealing bar brick 3, and the first arc-shaped groove 1-2 and the second arc-shaped groove 3-1 form a through hole for penetrating out the side thermocouple wire 6. Preferably, when the width of the mounting groove 1-1 is 15mm, the first arc-shaped groove 1-2 is a semicircular structure with the diameter of 15 mm; the second arc-shaped groove 3-1 is a semicircular groove hole, and the diameter of the second arc-shaped groove is 10 mm.

Referring to fig. 3 and 4, a cover plate brick 2 is arranged on the top of the high-zirconium brick body 1, and the cover plate brick 2 is used for sealing an upper opening of a U-shaped groove of the high-zirconium brick body 1; offer the through-hole that is used for top thermocouple wire 5 to wear out on the apron brick 2, the top at platinum passageway 4 is connected to the one end of top thermocouple wire 5, and the through-hole position of offering on the apron brick 2 is just to the tie point position of top thermocouple wire 5 and platinum passageway 4. In this embodiment, apron brick 2 adopts the high zirconium material of electric smelting equally, and the thickness of apron brick 2 is 65 ~ 80mm, and the outline of apron brick 2 matches with the top outline of high zirconium brick body 1. Preferably, the thickness of the cover plate brick 2 is 75mm, the length and the width of the cover plate brick are the same as those of the high-zirconium brick body 1 according to the length of the platinum channel 4, a through hole with the diameter of 15mm is formed in the middle of the cover plate brick 2, the top thermocouple wire 5 is led out from the upper through hole, and the through hole is located in the center line position of the cover plate brick 2 in the axial direction of the platinum channel 4. As shown in fig. 5, in order to detect the temperature differences of the platinum channel 4 at different points of the same cross section, the positions of the side thermocouples and the top thermocouples are generally designed on the same cross section, so that the center of the through hole of the cover plate brick 2 and the center of the through hole of the high-zirconium brick body 1 are on the same vertical plane.

As shown in FIG. 3 and FIG. 4, after the platinum channel 4 is installed in the U-shaped groove of the high-zirconium brick body 1, a gap of 15-20mm is reserved between the platinum channel 4 and the inner wall of the U-shaped groove of the high-zirconium brick body 1, a gap of 15-20mm is reserved between the platinum channel 4 and the lower end surface of the cover plate brick 2, the gap is used for filling a filler 7, the filler 7 is selected from a zirconium material, and the zirconium material at least contains 85% of ZrO₂The condition of high temperature resistance in sintering is met, and the final sintering component is close to that of the high-zirconium brick. A 15-20mm filling gap is kept between the high-zirconium brick body 1 and the platinum channel and is used for filling sealing filler, so that the platinum channel 4 is comprehensively wrapped and fixedly protected after the platinum channel 4 is installed and positioned, and the gap is in an optimal range determined by actual operation experience; the distance between the outer contour of the high-zirconium brick body 1 and the center of the platinum channel should be as large as possibleAnd the consistency is maintained.

During the design, through-hole on the apron brick 2 and mounting groove 1-1 of 1 lateral wall of high zirconium brick body, need consider the high temperature expansion displacement of platinum passageway 4 along the axis direction of platinum passageway 4, need reserve a certain position along the 4 inflation directions of platinum passageway, specifically reserve the distance and calculate with the expansion volume of platinum passageway 4 according to different positions, finally satisfy its and thermocouple root position's correspondence, guarantee that top thermocouple wire 5 and lateral part thermocouple wire 6 are drawn forth perpendicular to the direction of platinum passageway 4.

As shown in fig. 5, in the course of temperature rise, the actual platinum channel 4 and the external refractory material both expand and elongate in the length direction with the rise of temperature, but one end in the length direction is generally fixed, and the other end freely expands forward, and the expansion speed of platinum is faster than that of the external refractory material, so that a difference between the internal and external expansion displacement is finally formed, and the distance of 1000mm is generally not more than 10mm, therefore, preferably, the wire outlet of the thermocouple needs to be opened to the front of the thermocouple by a distance of 5-10 mm, and after the final expansion is completed, the two are basically located at the same position, so that the length of the thermocouple wire in the refractory material is minimized, and the influence range of high temperature on the thermocouple wire is reduced.

Aiming at the main problems in the original scheme, the invention carries out brand-new structural design and adjustment of the installation process. Firstly, designing a side mounting groove 1-1 on a U-shaped high-zirconium brick body 1, wherein the groove width is 15mm, the depth is positioned on the same plane with the arc end part of the U-shaped groove of the high-zirconium brick body 1, and adding a first arc-shaped groove 1-2 with the same width at the bottom of the mounting groove 1-1.

The invention relates to an application method of a U-shaped high-zirconium brick structure for a high-temperature area of a platinum channel, which comprises the following steps of firstly, placing the platinum channel 4 into a U-shaped groove from an opening at the upper part of the U-shaped groove of a high-zirconium brick body 1, and simultaneously, moving a side thermocouple wire 6 downwards to the bottom along an installation groove 1-1; then, inserting the sealing bar brick 3 into the mounting groove 1-1, wherein one end of the side thermocouple wire 6 extends out of a through hole formed by the bottom of the sealing bar brick 3 and the bottom of the mounting groove 1-1; then, filling a gap between the platinum channel 4 and the inner wall of the U-shaped groove of the high-zirconium brick body 1 with a filling material 7, and enabling the filling material 7 to be flush with the upper part of the U-shaped groove of the high-zirconium brick body 1; and finally, penetrating one end of the top thermocouple wire 5 out of the through hole in the cover plate brick 2, and covering the cover plate brick 2 on the upper part of the U-shaped groove of the high-zirconium brick body 1.

An example of a particular application is as follows:

because the platinum thermocouple adopts the welding mode, and its wire diameter is only 1.0mm, therefore its intensity is comparatively weak compared with traditional plug-in thermocouple, include very easily to take place the damage even fracture in welding, transport, installation. Therefore, through the structure of the mounting groove 1-1, in the process of slowly hanging the platinum channel 4 into the U-shaped groove of the high-zirconium brick body 1, the side thermocouple wire 6 slowly moves downwards along the mounting groove 1-1 until reaching the bottom of the groove, the thermocouple wire is not vertical to the platinum channel 4 at the moment, the displacement of the platinum channel 4 in the expansion process is mainly considered, so that the relative displacement between the mounting groove 1-1 and the side thermocouple wire 6 needs to be reserved in advance, and the thermocouple wire reaches a vertical corresponding position after the expansion is completed.

After the side thermocouple wires 6 are placed, the sealing strip bricks 3 are inserted into the mounting grooves 1-1, the second arc-shaped grooves 3-1 with the diameter of 10mm are designed at the bottoms of the sealing strip bricks 3, after the sealing strip bricks 3 are inserted in place, quasi-circular wire outlet holes are formed, after the side thermocouple wires 6 are confirmed to be mounted, zirconium mud materials which are made of the same materials as the internal filling materials 7 are used for carrying out final sealing on the quasi-circular holes, and the mounting of the side thermocouple wires 6 is completed.

After the installation of the side thermocouple wires 6 is confirmed, the gap between the whole platinum channel 4 and the U-shaped groove of the high-zirconium brick body 1 is sealed and filled with powder, and the main component of the powder is ZrO₂The high-zirconium brick and the high-zirconium brick body 1 are made of the same material, so that the integrity after sintering is ensured. After the filling of the filling material 7 is completed, the top thermocouple wire 5 of the platinum channel 4 penetrates through the circular hole of the top cover plate brick 2, the circular through hole of the top cover plate brick 2 and the side mounting groove 1-1 of the high-zirconium brick body 1 are in the same vertical plane position, at the moment, the installation of the platinum channel 4 in the high-zirconium brick is completed, and the synchronous confirmation of the side and the top thermocouple is completed.

The high-zirconium brick structure meets the requirements of convenience and stability in the installation process, and simultaneously reduces the length of a thermocouple in an internal high-temperature interval by about 90%, so that the attenuation failure rate of the thermocouple can be greatly reduced.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.