CN213141800U - Platinum channel - Google Patents
Platinum channel Download PDFInfo
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- CN213141800U CN213141800U CN202021469733.7U CN202021469733U CN213141800U CN 213141800 U CN213141800 U CN 213141800U CN 202021469733 U CN202021469733 U CN 202021469733U CN 213141800 U CN213141800 U CN 213141800U
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Abstract
The utility model provides a platinum channel, which comprises a platinum pipe and a platinum flange, wherein the platinum flange is sleeved on the platinum pipe and comprises a flange plate and an outer cylinder body, and the joint of the flange plate and the cylinder body part is of an R-angle structure; the radius of the angle R is 0.5-2 times of the thermal expansion amount generated by the outer circumference of the platinum pipe from 20 ℃ to 1300 ℃. This structure changes the vertical welding of traditional platinum flange and platinum pipeline into the combination of horizontal direction, and when the platinum pipe thermal expansion, the platinum pipe takes place horizontal direction's relative motion with the flange, does not have the extrusion force of vertical direction, avoids the impaired of pulling the flange and leads to the fact the flange to tear. The deformation absorption R angle of the platinum flange can absorb the expansion amount of the platinum pipeline, has a certain absorption effect on external force brought to the flange by the outside, and has double effects of protecting the platinum flange and a platinum channel.
Description
Technical Field
The utility model relates to an ultra-thin glass production field, in particular to platinum passageway.
Background
In the manufacturing process of high quality glass such as TFT or cover plate, a platinum channel process is required. In the platinum channel process, a large amount of expensive metals or alloys such as platinum, rhodium, palladium, iridium and the like are needed, the manufacturing cost is different due to the size of the yield design, and the manufacturing cost of the platinum channel precious metals or precious metal alloys with the daily glass yield of about 15 tons is as high as about 1.5 hundred million RMB. However, the service life of the industry is generally about 3-3.5 years due to the high cost.
The bottleneck influencing the service life of the platinum channel is mainly caused by the fact that the platinum flange and the flanging part of the platinum pipe in the traditional structure are connected in a welding mode, and the platinum pipe is in a high-temperature environment (about 1400 ℃ C.) for a long time and the welding position of the platinum flange in a high-current environment is subjected to thermal stress and thermal expansion to extrude the flange, so that the part near the welding position is broken. After the platinum pipeline is broken, the glass and the heat insulating material undergo complex chemical reaction, which brings a great amount of solid point defects which cannot be improved for glass products, so that the industry searches for a method which can eliminate the damage of thermal expansion pulling force and thermal stress to the platinum channel, thereby prolonging the service life of the platinum channel, and achieving the purposes of reducing cost and improving glass quality.
SUMMERY OF THE UTILITY MODEL
Therefore, it is desirable to provide a platinum channel that eliminates the thermal expansion pull and thermal stress damage to the platinum channel.
The utility model provides a platinum passageway, the platinum passageway includes platinum pipe and platinum flange, platinum flange cover is located on the platinum pipe, the junction of ring flange and barrel part is the R angle structure, and the R angle radius is the platinum pipe, by 0.5-2 times of the produced barrel periphery thermal expansion volume of 20 ℃ to 1300 ℃. The thermal expansion amount may be calculated from (thermal expansion coefficient × outer circumference of the cylindrical body × temperature difference), or may be directly detected by a thermal expansion meter. Since platinum is subject to melt deformation at temperatures exceeding 1300 ℃, the thermal expansion temperature is set to 1300 ℃.
The R angle structure is used for absorbing the thermal expansion or external force deformation of the platinum channel main body and has the double functions of protecting the platinum flange and the platinum pipe. This structure can be so that platinum pipe when being heated the inflation, and platinum pipe and platinum flange take place the relative motion of horizontal direction, and the extrusion force of no vertical direction avoids the vertical direction to stimulate the flange and causes the impaired of flange to tear to reach the purpose of stabilizing equipment structure and extension equipment life.
Further, the inner diameter of the platinum flange is 0-30 μm larger than the outer diameter of the platinum pipe.
The difference value between the inner diameter of the platinum flange and the outer diameter of the platinum pipe sleeved on the platinum flange is controlled to be 0-30 mu m through precision machining, and the platinum flange and the platinum pipe are tightly combined together by utilizing the temperature difference and the thermal expansion difference between the platinum pipe and the flange through precisely controlling a temperature rise curve during equipment installation, so that the effect same as that of welding the flange is achieved.
Further, the number of the cylinders is 1 or 2.
Furthermore, a circle of protruding parts are arranged on the outer wall of the platinum pipe close to the platinum flange around the shaft. The electric power, the heating rate of the platinum channel and the trend of the thermal expansion coefficient of the material can be precisely and accurately controlled by electrifying the protruding part, so that the platinum pipe and the platinum flange are perfectly combined and electrified.
Further, the platinum channel is made of platinum or platinum-containing alloy materials.
Further, the outer diameter of the platinum tube is 100-400mm, and the wall thickness is 0.6-3 mm; the radius of the R angle is 5-50 mm.
Further, when the platinum channel is used, the temperature is increased to the working temperature in a gradient temperature increasing mode.
Different from the prior art, the joint of the flange and the cylinder body part in the technical scheme is of an R-angle structure, so that the thermal expansion or external force deformation of the platinum channel main body can be absorbed, and the double functions of protecting the platinum flange and the platinum pipe are achieved. This structure can be so that platinum pipe when being heated the inflation, and platinum pipe and flange take place the relative motion of horizontal direction, and the extrusion force of no vertical direction avoids the pulling flange to cause the impaired of flange to tear to reach the purpose of stabilizing equipment structure and extension equipment life.
Drawings
FIG. 1 is a schematic view of the structure of a platinum channel according to example 1;
fig. 2 is a schematic structural view of a platinum channel described in embodiment 2.
Description of reference numerals:
1. a platinum flange is arranged on the outer side of the cylinder,
11. a flange plate is arranged on the outer side of the flange plate,
12. the device comprises a cylinder body and a control device,
13. the structure of the angle R is shown in the specification,
2. a platinum tube.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Example 1: platinum channel
Referring to fig. 1, in embodiment 1, the platinum channel includes a platinum pipe 2 and platinum flanges 1, the platinum flanges 1 are sleeved on two sides of the platinum pipe 2, the platinum flanges 1 include flanges 11 and 2 cylinders 12 respectively disposed on the outer sides of the flanges, a circle of welding protrusion is disposed around the platinum flange 1 on the outer wall of the platinum pipe 2, the welding protrusion is disposed on the outer wall of the platinum pipe 2, the connection between the flanges 11 and the cylinders 12 is an R-angle structure 13, and the radius of the R-angle is 0.5-2 times the linear expansion of the manufacturing material, so as to absorb the thermal expansion or external deformation of the platinum channel main body, thereby having the dual function of protecting the platinum flanges and the platinum pipe.
In example 1, the platinum pipe had an outer diameter of 100mm and a wall thickness of 0.6mm, and 100 wt% platinum (having a linear expansion coefficient of 9.1X 10) was used for the platinum pipe and the platinum flange-6/° c). The outer circumference is 100mm, the thermal expansion amount from 20 ℃ to 1300 ℃ is 3.66mm, and the radius of the R corner is 5 mm.
This structure can be so that platinum pipe when being heated the inflation, and platinum pipe and platinum flange take place the relative motion of horizontal direction, and the extrusion force of no vertical direction avoids the vertical direction to stimulate the flange and causes the impaired of flange to tear to reach the purpose of stabilizing equipment structure and extension equipment life.
The difference value between the inner diameter of the platinum flange and the outer diameter of the platinum pipe sleeved on the platinum flange is controlled to be 0-30 mu m through precision machining, the temperature rise curve is precisely controlled by electrifying the protruding part when the equipment is installed, and the platinum flange are tightly combined together by utilizing the temperature difference and the thermal expansion difference between the inside of the platinum pipe and the flange, so that the effect same as that of welding the flange is achieved. And heating the platinum channel by adopting an electrifying mode, and heating to working temperature by adopting a gradient heating mode when in use.
In the platinum channel of embodiment 1, two sides of the flange ring are respectively provided with 1 cylinder, so that the contact area between the platinum flange and the platinum pipe can be increased, the current density is reduced, and the platinum channel is prevented from being punctured by local overheating. Once the connecting part on one side is broken, the other end continues to work, and the service life of the platinum channel equipment is prolonged. The method is suitable for a platinum production line of part of high-viscosity ultrathin glass products, the glass production line keeps a high-temperature and high-current state in the production process, and the normal working temperature range is as follows: 1500-1650 ℃, and the working current range 3000-8000A.
Example 2A platinum channel
Referring to fig. 2, in embodiment 2, the platinum channel includes a platinum pipe 2 and platinum flanges 1, the platinum flanges 1 are sleeved on two sides of the platinum pipe 2, the platinum flanges 1 include a flange plate 11 and 1 cylinder 12 arranged outside the flange plate, a circle of welding protrusion is arranged around the axis at a position of the outer wall of the platinum pipe 2 close to the platinum flanges 1, a connection part of the flange plate 11 and the cylinder 12 is an R-angle structure 13, and the radius of the R-angle is 0.5-2 times of the linear expansion of the preparation material, so as to absorb the thermal expansion or external force deformation of the platinum channel main body, thereby having a dual function of protecting the platinum flanges and the platinum pipe.
In example 2, the platinum tube had an outer diameter of 400mm and a wall thickness of 3 mm. The alloy composition is Pt80 wt% Rh20 wt%, (coefficient of linear expansion is 10.4X 10)-6/° c). The outer circumference is 400mm and the thermal expansion amount is 16.7mm from 20 ℃ to 1300 ℃. The radius of the R angle is 20 mm.
The difference value between the inner diameter of the platinum flange and the outer diameter of the platinum pipe sleeved on the platinum flange is controlled to be 0-30 mu m through precision machining, the groove is electrified during equipment installation, the temperature rise curve is precisely controlled, and the platinum flange and the platinum pipe are tightly combined together by utilizing the temperature difference and the thermal expansion difference between the inside of the platinum pipe and the flange, so that the effect same as that of welding the flange is achieved.
And heating the platinum channel by adopting an electrifying mode, and heating to working temperature by adopting a gradient heating mode when in use.
According to the structure of the platinum channel, the traditional vertical welding of the platinum flange and the platinum pipeline is changed into the combination in the horizontal direction, when the platinum pipe expands due to heating, the platinum pipe and the flange move relatively in the horizontal direction, the extrusion force in the vertical direction is avoided, and the flange is prevented from being damaged and torn due to the fact that the flange is pulled. The deformation absorption R angle of the platinum flange can absorb the expansion amount of the platinum pipeline, has a certain absorption effect on external force brought to the flange by the outside, and has double effects of protecting the platinum flange and a platinum channel. In addition, the temperature rise rate and the expansion amount of the platinum pipeline and the platinum flange can be accurately controlled through the electrical, mechanical and heat insulation materials and other devices attached to the platinum channel, so that the platinum channel is precisely combined, and the service life of the platinum channel device is prolonged.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (7)
1. The platinum channel is characterized by comprising a platinum pipe and a platinum flange, wherein the platinum flange is sleeved on the platinum pipe and comprises a flange plate and an outer cylinder body, and the joint of the flange plate and the cylinder body is of an R-angle structure; the radius of the angle R is 0.5-2 times of the thermal expansion amount generated by the outer circumference of the platinum pipe from 20 ℃ to 1300 ℃.
2. The platinum channel of claim 1, wherein the platinum flange has an inner diameter greater than the outer diameter of the platinum tube by 0-30 μm.
3. The platinum channel according to claim 1, wherein the number of cylinders is 1 or 2.
4. The platinum channel as claimed in claim 1, wherein a ring of protrusions are arranged around the shaft at the position of the outer wall of the platinum pipe close to the platinum flange.
5. The platinum channel as claimed in claim 1, wherein said platinum channel is fabricated from platinum or platinum-containing alloy materials.
6. The platinum channel as claimed in claim 5, wherein the platinum tube has an outer diameter of 100-400mm and a wall thickness of 0.6-3 mm; the radius of the R angle is 5-50 mm.
7. The platinum channel as claimed in claim 1, wherein said platinum channel is heated to operating temperature in a gradient heating manner when in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021469733.7U CN213141800U (en) | 2020-07-23 | 2020-07-23 | Platinum channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021469733.7U CN213141800U (en) | 2020-07-23 | 2020-07-23 | Platinum channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213141800U true CN213141800U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021469733.7U Active CN213141800U (en) | 2020-07-23 | 2020-07-23 | Platinum channel |
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| Country | Link |
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| CN (1) | CN213141800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873905A (en) * | 2022-05-30 | 2022-08-09 | 彩虹显示器件股份有限公司 | Device and method for managing temperature rise and expansion of substrate glass channel |
| CN115818930A (en) * | 2022-12-09 | 2023-03-21 | 彩虹显示器件股份有限公司 | Device and method for monitoring thermal expansion of platinum channel clarification section |
-
2020
- 2020-07-23 CN CN202021469733.7U patent/CN213141800U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873905A (en) * | 2022-05-30 | 2022-08-09 | 彩虹显示器件股份有限公司 | Device and method for managing temperature rise and expansion of substrate glass channel |
| CN114873905B (en) * | 2022-05-30 | 2023-09-22 | 彩虹显示器件股份有限公司 | Device and method for temperature rise expansion management of substrate glass channel |
| CN115818930A (en) * | 2022-12-09 | 2023-03-21 | 彩虹显示器件股份有限公司 | Device and method for monitoring thermal expansion of platinum channel clarification section |
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