CN214654440U

CN214654440U - Platinum passageway straight tube type heater filling structure

Info

Publication number: CN214654440U
Application number: CN202022839053.6U
Authority: CN
Inventors: 王答成; 王梦龙; 杨威
Original assignee: Irico Display Devices Co Ltd
Current assignee: Irico Display Devices Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-11-09
Anticipated expiration: 2030-11-30

Abstract

The utility model provides a platinum passageway straight tube type heater filling structure belongs to TFT-LCD base plate glass trade. Through designing rectilinear silk groove structure, change traditional spiral wire winding mode, match design outside insulation construction simultaneously, the big clearance filling space of reservation cancels original inslot and packs, directly adopts thick liquids whole packing, increases the system seal nature to inside heater strip, extension heater working life.

Description

Platinum passageway straight tube type heater filling structure

Technical Field

The utility model belongs to the technical field of the base plate glass makes, concretely relates to platinum passageway straight tube type heater filling structure.

Background

In the operation process of the platinum channel, a plurality of positions adopt an auxiliary heating mode to heat and preserve heat of the internal cavity and the molten glass, the auxiliary heating mode is mainly used for maintaining heat and a bidirectional adjusting mechanism with temperature, and the auxiliary heating mode also has the function of maintaining liquid level temperature in a local area to ensure that the viscosity reaches a certain range so as to meet the requirements of other process detection.

The temperature of the areas is relatively high, and the current platinum wire sealing technology has defects, so that the platinum wire faces continuous high-temperature oxidation and volatilization problems in the actual production process, and as the volatilization amount reaches a certain degree along with the accumulation of time, the diameter of the platinum wire is gradually reduced, the corresponding equivalent resistance is gradually increased, the heat productivity of the platinum wire is increased under the action of constant current, a vicious circle is further formed, and finally the platinum wire is fused. Therefore, the oxidation and volatilization resistance of the platinum wire is the primary technical problem to be solved at present.

The utility model discloses mainly through a platinum passageway straight tube type heater filling structure, through setting up perpendicular silk groove structure, replace original spiral silk groove structure, it is sealed with the packing to match the installation of design platinum silk simultaneously, improves the anti high temperature anti-oxidant ability of volatilizing of platinum silk, extension platinum heater working life.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model provides a platinum passageway straight tube type heater filling structure, the utility model discloses can improve platinum wire's the anti-oxidant ability of volatilizing, increase platinum heater's life.

The utility model discloses a realize through following technical scheme:

a platinum channel straight tube type heater filling structure comprises a device brick, a platinum wire and an external heat insulation brick;

the heater brick is sleeved outside the platinum pipeline to form an inner filling gap; a straight groove structure is arranged outside the heater brick; the platinum wire is S-shaped and is sequentially wound in the groove of the straight groove structure; the external insulating brick forms an external filling gap outside the heater brick; and filling slurry is filled in the inner filling gap and the outer filling gap.

Further, the heater brick is of an annular cylindrical structure.

Further, the length of the heater brick is not less than that of the platinum pipeline, and the thickness of the heater brick is 15-25 mm.

Furthermore, the width of the groove of the straight groove structure is larger than the diameter of the platinum wire.

Furthermore, the two ends of the heater brick are designed with a non-groove structure with the length of 10-20 mm.

Further, the heater brick is made of an isostatic pressing alumina refractory material resisting 1500 ℃.

Further, the filling slurry is aluminum filler, and the main component is Al₂O₃And the content is not less than 99%.

Drawings

FIG. 1 is a top view of the heater and external insulation integrated assembly.

Fig. 2 is a schematic view of a heater and a platinum wire wound thereon.

Fig. 3 is an overall schematic view of the heater.

In the figure: 1 is a platinum pipeline, 2 is an inner filling gap, 3 is a heater brick, 4 is a platinum wire, 5 is an outer filling gap, 6 is an outer heat-insulating brick, 32 is a straight groove structure, 31 is a non-groove structure, and 41 is a terminal.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.

The utility model relates to a platinum channel straight tube type heater filling structure, which mainly comprises a platinum tube 1, an inner filling gap 2, a heater brick 3, a platinum wire 4, an outer filling gap 5 and an outer insulating brick 6; on the basis of the structure, the platinum wire is comprehensively, finely and uniformly sealed.

As shown in a platinum pipe 1 in figure 1, the heater structure and the matched installation and filling mode of the utility model mainly aim at the platinum part of the round pipe; the internal filling gap 2 is composed of an internal platinum pipe 1 and an adjacent heater brick 3, is mainly used for installing a heater, and is firstly grouted and filled after the heater brick 3 is sleeved on the platinum pipe 1, and belongs to a basic structure for installing the heater.

As mentioned above the utility model discloses core structure heater brick 3, its isostatic pressing aluminium oxide resistant material that adopts and to resist 1500 ℃, the main part is the cylinder structure of ring, and the internal diameter needs about 20mm more than 1 external diameter of platinum pipe for effectual packing and fixed. The length of the heater brick 3 is the same as that of the platinum pipe 1 or within 20mm longer than that of the platinum pipe 1. The thickness of the brick body is designed to be about 15mm to 25mm, so that the integral strength of the heater brick 3 and the processing depth of the external straight groove structure 32 are ensured;

the heater brick 3 is externally provided with a straight groove structure 32 in the axial direction, which is mainly used for mounting the platinum wire 4, so that the width of the straight groove structure is necessarily larger than the diameter of the platinum wire 4, and the currently adopted platinum wire has the diameter of 3.0mm, so that the width of the straight groove needs to reach about 5.5mm to 7mm, a certain gap is ensured in the groove for subsequent slurry inflow of the platinum wire 4, and the depth of the straight groove is about 6mm to 8 mm;

as shown in fig. 2, a platinum wire 4 is wound in an S-shape in the groove of the straight groove structure 32, a terminal 41 is required to be led out, and is connected with external direct current, and the lead-out position is arranged at the upper part of the heater brick 3;

as shown in fig. 3, the two ends of the heater brick 3 are designed with a non-groove structure 31 with a length of about 10mm to 20mm, which is mainly used for the corner and bending of the platinum wire 4 between adjacent wire grooves;

according to the heater brick 3, the platinum wire 4 is wound in the straight groove structure 32 processed on the whole body of the heater brick, and multiple bending of the platinum wire and collision damage with a tool are avoided in the winding process;

after the platinum wire 4 is wound on the heater brick 3, a terminal 41 needs to be led out and connected with external direct current, and the lead wire outlet position is arranged at the upper part of the heater brick 3;

the external insulating brick 6 is sleeved outside the heater brick 3 and forms an external filling gap 5, and the filling slurry is filled in the external filling gap 5.

Secondly, winding a platinum wire 4 in an S shape in a groove of the straight groove structure 32, then sleeving the platinum wire and a heater brick 3 on a platinum pipe 1, grouting and filling the formed inner filling gap 2, after solidification, sleeving an external heat insulation brick 6 outside a heating system to form an external filling gap 5, wherein the width of the external filling gap 5 is designed to be within 10 mm-20 mm; the slurry can fully flow downwards along the straight groove structure 32, and finally the whole outer filling gap 5 and the gap in the wire groove are filled and sealed, so that the aim of uniformly sealing the whole body is fulfilled.

The filling slurry adopts aluminum filler, the content of the main component Al2O3 is more than 99 percent, the granularity is required to be less than 0.5, the highest using temperature can reach 1680 ℃, and the filling slurry is mixed and stirred with warm water at 40-70 ℃ to form the flowing slurry for filling.

The utility model discloses a perpendicular silk groove combines the system grout after the wire winding installation to fill, can realize sealed to the all-round homogeneity of platinum silk, reduces the oxidation volatilization rate under the platinum silk base member high temperature, increase of service life.

Claims

1. A platinum channel straight tube type heater filling structure is characterized by comprising a heater brick (3), a platinum wire (4) and an external heat-insulating brick (6);

the heater brick (3) is sleeved outside the platinum pipeline (1) to form an inner filling gap (2); a straight groove structure (32) is arranged outside the heater brick (3); the platinum wires (4) are wound in the grooves of the straight groove structure (32) in an S shape in sequence; the external heat-insulating brick (6) forms an external filling gap (5) outside the heater brick (3); and filling slurry is filled in the inner filling gap (2) and the outer filling gap (5).

2. A platinum channel straight tube heater fill structure as claimed in claim 1, wherein the heater brick (3) is of annular cylindrical configuration.

3. The platinum channel straight tube type heater filling structure as claimed in claim 1, wherein the length of the heater brick (3) is not less than that of the platinum pipeline (1), and the thickness of the heater brick (3) is 15-25 mm.

4. A platinum channel straight tube heater filling structure as claimed in claim 1, wherein the groove width of the straight groove structure (32) is larger than the diameter of the platinum wire (4).

5. The platinum channel straight tube type heater filling structure as claimed in claim 1, wherein both ends of the heater brick (3) are designed with a non-groove structure (31) with a length of 10-20 mm.

6. A platinum channel straight tube heater packing structure as claimed in claim 1, wherein the heater brick (3) is made of an isostatic alumina refractory material resistant to 1500 ℃.

7. The platinum channel straight tube heater filling structure as claimed in claim 1, wherein the filling slurry is an aluminum filler.