CN115108710B - Glass liquid channel heating system and heating method - Google Patents
Glass liquid channel heating system and heating method Download PDFInfo
- Publication number
- CN115108710B CN115108710B CN202210777636.1A CN202210777636A CN115108710B CN 115108710 B CN115108710 B CN 115108710B CN 202210777636 A CN202210777636 A CN 202210777636A CN 115108710 B CN115108710 B CN 115108710B
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- glass liquid
- liquid channel
- heating
- heating rod
- shaped
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 182
- 239000011521 glass Substances 0.000 title claims abstract description 147
- 239000007788 liquid Substances 0.000 title claims abstract description 145
- 238000000034 method Methods 0.000 title claims abstract description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 27
- 238000005452 bending Methods 0.000 claims abstract description 16
- 238000004321 preservation Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 11
- 239000006060 molten glass Substances 0.000 claims description 10
- 239000011449 brick Substances 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005352 clarification Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000000265 homogenisation Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
- C03B7/06—Means for thermal conditioning or controlling the temperature of the glass
- C03B7/07—Electric means
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Control Of Resistance Heating (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a glass liquid channel heating system and a heating method, and belongs to the technical field of glass liquid heating. The invention relates to a blog glass liquid channel, a heat preservation device, a heating device and a detection device; the heat preservation device comprises a plurality of U-shaped heating rods which are uniformly distributed along the axial direction of the glass liquid channel at intervals, wherein the bending part of the U-shaped heating rods surrounds the glass liquid channel and the bending radius is larger than the pipe diameter of the glass liquid channel; each pair of U-shaped heating rods comprises a first heating rod and a second heating rod with opposite opening directions; each U-shaped heating rod is independently controlled to realize the sectional control of the temperature of the glass liquid channel; the thermocouple is positioned in the area of the glass liquid channel which is not wrapped by the U-shaped heating rod, and is used for detecting and monitoring the temperature of the platinum pipeline in real time; the uniform heating of the glass liquid channels is realized, and the heating temperature of each section of glass liquid channel can be accurately controlled. The invention can be widely applied to glass liquid heating occasions.
Description
Technical Field
The invention relates to a glass liquid channel heating system and a heating method, and belongs to the technical field of glass liquid heating.
Background
The heating method of the glass liquid channel in the prior art is that the current is directly heated, and the current is connected to the glass liquid channel. The following problems are encountered when the glass is heated by directly heating the glass channel: the method has the advantages that (1) the platinum loss is accelerated due to the fact that the current is connected to the glass liquid channel, (2) the heating is uneven due to the fact that the current is uneven, and (3) the glass liquid is impure due to the fact that the platinum is corroded.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a glass liquid channel heating system and a heating method, wherein a special U-shaped heating rod is embedded in a glass liquid channel, so that the heating non-uniformity condition is improved; the indirect heating U-shaped heating rod is utilized to heat the glass liquid channel instead of directly, so that the platinum loss speed is reduced, and the purity of the glass liquid is improved by phase change.
The glass liquid channel heating system provided by the invention comprises the following components:
The radial section of the glass liquid channel is circular, glass liquid passes through the inner cavity of the glass liquid channel, and the glass liquid enters the feed bin through clarification, cooling, stirring and homogenization;
the heat preservation device is made of heat preservation structural materials and is used for fixing the heating device, fixing the platinum pipeline and preserving heat for the glass liquid channel;
The heating device comprises a plurality of U-shaped heating rods which are uniformly distributed along the axial direction of the glass liquid channel at intervals, wherein the bending part of the U-shaped heating rods surrounds the glass liquid channel and the bending radius is larger than the pipe diameter of the glass liquid channel; each pair of U-shaped heating rods comprises a first heating rod and a second heating rod with opposite opening directions;
the detection device comprises a plurality of thermocouples which are uniformly distributed along the axial direction of the glass liquid channel and are arranged at intervals, and the thermocouples and the U-shaped heating rod are respectively positioned at two opposite sides of the glass liquid channel;
Each U-shaped heating rod is independently controlled to realize the sectional control of the temperature of the glass liquid channel; the thermocouple is positioned in the area of the glass liquid channel which is not wrapped by the U-shaped heating rod, and detects and monitors the temperature of the platinum pipeline in real time.
The heat preservation device, the heating device and the detection device for heating control are additionally arranged outside the glass liquid channel, wherein the heat preservation device has a fixing function on one hand, and a heat preservation effect is provided for the heating device on the other hand. The core is the heating device, utilizes the U style of calligraphy heating rod that bilateral symmetry set up, after the interval is arranged, through experimental verification, the glass liquid passageway be heated evenly, and glass liquid is through the semicircle region of first heating rod earlier, continues to contact the semicircle region of second heating rod in addition again forward, carries out alternately in proper order. The center of the opposite surface of the heated half area is provided with a detection device, and the thermocouple timely acquires the temperature in the area by utilizing the non-heating area between the two adjacent first heating rods in the same direction or the two adjacent second heating rods in the same direction.
Preferably, the bending radius of the U-shaped heating rod is 10-80mm larger than the pipe diameter of the molten glass channel. The U-shaped heating rod aims at heating the molten glass channel, so that the molten glass channel uniformly transfers heat to molten glass. Avoid the problems of service life reduction caused by directly heating the glass liquid channel, purity reduction caused by platinum loss entering the glass liquid, and the like.
Preferably, the distance between the first heating rod and the second heating rod is 20mm-80 mm. According to the data obtained by the experiment, the two U-shaped heating rods are set to be 20-80 mm, so that the glass liquid can be heated at a sufficient temperature, and each U-shaped heating rod can be independently controlled, and the real-time temperature is controlled.
Preferably, the heat insulation structure of the heat insulation device is made of heat-resistant bricks with the thickness of 1-2 mm. The heat-insulating structural material is a special heat-resistant brick which is used for the outside of a glass liquid channel with a smaller diameter, is used for insulating the heated glass liquid channel and fixing a U-shaped heating rod outside the glass liquid channel.
The heating method of the glass liquid channel heating system comprises the following steps:
s1: the first heating rods and the second heating rods are used in pairs and have the same structure, the directions of the U-shaped openings are opposite in arrangement, and a plurality of pairs of U-shaped heating rods are uniformly distributed along the direction of the glass liquid channel;
s2: a thermocouple is arranged at the center of the U-shaped opening of the glass liquid channel, which is not wrapped by the U-shaped heating rod, so as to monitor the temperature of the platinum pipeline;
S3: each U-shaped heating rod is independently controlled, and current is introduced into the heating rod for heating.
Compared with the existing method for directly heating the glass liquid channel, the method provided by the invention has the advantages that the U-shaped heating rods are indirectly heated, the temperature control is independently carried out on the U-shaped heating rods of the glass liquid channel at intervals, and the feedback is carried out according to the temperature collected by the thermocouple, so that the temperature change of the glass liquid channel is detected in real time, and the heating temperature of the glass liquid is controllable and the accuracy is higher.
Preferably, in step S3, the glass liquid channel is controlled in sections to heat by passing a current through the U-shaped heating rod, so as to avoid direct energization of the platinum pipeline, reduce the undesirable effects such as energization loss of the platinum pipeline, and increase the service life of the glass liquid channel.
The U-shaped heating rod can be arranged in a segmented mode, so that the glass liquid channel can be controlled in a segmented mode; the U-shaped heating rod is utilized to heat the glass liquid channel instead of the glass liquid channel, so that the service life of the glass liquid channel can be prolonged, and the energy consumption of the glass liquid channel can be reduced.
Preferably, in the step S3, the glass liquid in the glass liquid channel contacts the curved portion of the U-shaped heating rod arranged at regular intervals, and flows forward along the axial direction to form a fluid, and the thermocouple passing through the glass liquid channel collects the temperature of the glass liquid in real time.
The bending part is used for heating the glass liquid channel, and the bending part only acts on a semicircular area of the glass liquid channel at a time, so that the condition that the continuous temperature change in a certain section is uncontrollable due to the conventional spiral heating is avoided.
The beneficial effects of the invention are as follows: the glass liquid channel heating system and the glass liquid channel heating method realize uniform heating of the glass liquid channels and can realize accurate control of the heating temperature of each section of glass liquid channel.
Drawings
Fig. 1 is a radial cross-sectional view of the system of the present invention.
Fig. 2 is a schematic structural diagram of a first heating rod and a second heating rod.
Fig. 3 is an axial cross-sectional view of the system of the present invention.
Fig. 4 is an axial cross-sectional view of the prior art.
In the figure: 1. a first heating rod; 2. a second heating rod; 3. a thermocouple; 4. a thermal insulation structure; 5. and a glass liquid channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1:
as shown in fig. 1 and 3, the glass liquid channel heating system according to the present invention comprises the following components:
the radial section of the glass liquid channel 5 is circular, glass liquid passes through the inner cavity of the glass liquid channel 5, and the glass liquid enters the feed bin through clarification, cooling, stirring and homogenization;
The heat preservation device adopts a heat preservation structure 4 material and is used for fixing the heating device, fixing the platinum pipeline and playing a heat preservation role on the glass liquid channel 5;
The heating device comprises a plurality of U-shaped heating rods which are uniformly distributed along the axial direction of the glass liquid channel 5 at intervals, wherein the bending part of the U-shaped heating rods surrounds the glass liquid channel 5 and the bending radius is larger than the pipe diameter of the glass liquid channel 5; each pair of the U-shaped heating rods comprises a first heating rod 1 and a second heating rod 2 with opposite opening directions, as shown in figure 2.
The detection device comprises a plurality of thermocouples 3 which are uniformly distributed along the axial direction of the glass liquid channel 5 and are arranged at intervals, wherein the thermocouples 3 and the U-shaped heating rod are respectively positioned at two opposite sides of the glass liquid channel 5;
Each U-shaped heating rod is independently controlled to realize the sectional control of the temperature of the glass liquid channel 5; the thermocouple 3 is positioned in the area of the glass liquid channel 5 which is not wrapped by the U-shaped heating rod, and detects and monitors the temperature of the platinum pipeline in real time.
The glass liquid channel 5 is externally provided with a heat preservation device, a heating device and a detection device for heating control, wherein the heat preservation device has a fixing function on one hand and also provides a heat preservation effect for the heating device on the other hand. The core is a heating device, after the heating rods are arranged at intervals in a bilateral symmetry mode, experiments prove that the glass liquid channel 5 is heated uniformly, glass liquid passes through a half round area of the first heating rod 1, and continuously contacts with a half round area of the other second heating rod 2 forwards, and the heating devices are sequentially and alternately carried out. The center of the opposite surface of the heated half area is provided with a detection device, and the thermocouple 3 timely acquires the temperature in the area by utilizing the non-heating area between the two adjacent first heating rods 1 in the same direction or the two adjacent second heating rods 2 in the same direction.
Preferably, the bending radius of the U-shaped heating rod is 10-80mm larger than the pipe diameter of the molten glass channel 5. The purpose of the U-shaped heating rod is to heat the molten glass channel 5, so that the molten glass channel 5 uniformly transfers heat to molten glass. Avoid the problems of service life reduction caused by directly heating the glass liquid channel 5, purity reduction caused by platinum loss entering the glass liquid, and the like.
Preferably, the distance between the first heating rod 1 and the second heating rod 2 is 20mm-80 mm. According to the data obtained by the experiment, the two U-shaped heating rods are set to be 20-80 mm, so that the glass liquid can be heated at a sufficient temperature, and each U-shaped heating rod can be independently controlled, and the real-time temperature is controlled.
Preferably, the heat insulation structure 4 of the heat insulation device is made of heat-resistant bricks with the thickness of 1-2 mm. The heat insulation structure 4 is made of special heat-resistant bricks and is used for the outer part of the glass liquid channel 5 with smaller diameter, the heat insulation of the heated glass liquid channel 5 and fixing a U-shaped heating rod outside the glass liquid channel 5.
Example 2:
the heating method of the glass liquid channel heating system comprises the following steps:
S1: the first heating rod 1 and the second heating rod 2 are used in pairs and have the same structure, the directions of the U-shaped openings are opposite in arrangement, and a plurality of pairs of U-shaped heating rods are uniformly distributed along the pipeline direction of the glass liquid channel 5;
s2: a thermocouple 3 is arranged at the center of the U-shaped opening of the glass liquid channel 5, which is not wrapped by the U-shaped heating rod, so as to monitor the temperature of the platinum pipeline;
S3: each U-shaped heating rod is independently controlled, and current is introduced into the heating rod for heating.
Compared with the existing method for directly heating the glass liquid channel 5, the method provided by the invention has the advantages that as shown in fig. 4, the U-shaped heating rods are indirectly heated, the temperature of the U-shaped heating rods at certain intervals of the glass liquid channel 5 is independently controlled, and the feedback is carried out according to the temperature acquired by the thermocouple 3, so that the change of the temperature of the glass liquid channel 5 is detected in real time, and the heating temperature of glass liquid is controllable and high in accuracy.
Preferably, in step S3, the glass liquid channel 5 controls the temperature in sections, and by introducing current to the U-shaped heating rod for heating, the direct energization of the platinum pipeline is avoided, the undesirable effects such as the energization loss of the platinum pipeline are reduced, and the service life of the glass liquid channel 5 is prolonged.
The U-shaped heating rod can be arranged in a segmented mode, so that the glass liquid channel 5 can be controlled in a segmented mode; by using the heating U-shaped heating rod instead of the glass liquid channel 5, the service life of the glass liquid channel 5 can be prolonged, and the energy consumption of the glass liquid channel 5 can be reduced.
Preferably, in the step S3, the glass liquid in the glass liquid channel 5 contacts the curved portion of the U-shaped heating rod arranged at regular intervals, and flows forward along the axial direction to form a fluid, and the thermocouple 3 passing through the glass liquid channel 5 collects the temperature of the glass liquid in real time.
The bending part plays a role in heating the glass liquid channel 5, and the bending part only plays a role in a half circle area of the glass liquid channel 5 at a time, so that the condition that the continuous temperature change in a certain section is uncontrollable due to the existing spiral heating is avoided.
The first heating rod 1 and the second heating rod 2 are used in pairs, in the glass liquid channel 5, the structures are identical, the U-shaped openings are opposite in direction, and a plurality of pairs of heating rods are uniformly distributed along the pipeline direction of the glass liquid channel 5. The heat insulation structure 4 is used for fixing a heating rod, fixing a platinum pipeline and performing heat insulation on the glass liquid channel 5. The glass liquid channel 5 is not wrapped by the heating rod, and a thermocouple 3 is arranged at the center of the U-shaped opening and used for monitoring the temperature of the platinum pipeline. Each heating rod is independently controlled, the glass liquid channel 5 can be controlled in sections, the heating rods are arranged into U-shaped heating rods, the platinum pipelines are uniformly wrapped, and the platinum pipelines can be uniformly heated. By introducing current to the heating rod for heating, the direct electrifying of the platinum pipeline is avoided, the defects such as electrifying loss of the platinum pipeline can be reduced, and the service life of the glass liquid channel 5 can be prolonged.
The glass liquid channel heating system and the glass liquid channel heating method realize uniform heating of the glass liquid channels 5 and can realize accurate control of the heating temperature of each section of glass liquid channel 5.
The invention can be widely applied to glass liquid heating occasions.
Claims (4)
1. A molten glass channel heating system comprising:
the radial section of the glass liquid channel (5) is circular, glass liquid passes through the inner cavity of the glass liquid channel (5), and the glass liquid enters the feed bin through clarification, cooling, stirring and homogenization;
the heat preservation device adopts a heat preservation structure (4) material and is used for fixing the heating device, fixing the platinum pipeline and playing a heat preservation role on the glass liquid channel (5);
The heating device comprises a plurality of U-shaped heating rods which are uniformly distributed along the axial direction of the glass liquid channel (5) at intervals, wherein the bending part of the U-shaped heating rods surrounds the glass liquid channel (5) and the bending radius is larger than the pipe diameter of the glass liquid channel (5); each pair of U-shaped heating rods comprises a first heating rod (1) and a second heating rod (2) with opposite opening directions;
the detection device comprises a plurality of thermocouples (3) which are uniformly distributed along the axial direction of the glass liquid channel (5) at intervals, wherein the thermocouples (3) and the U-shaped heating rod are respectively positioned at two opposite sides of the glass liquid channel (5);
Each U-shaped heating rod is independently controlled to realize the sectional control of the temperature of the glass liquid channel (5); the thermocouple (3) is positioned in the area of the glass liquid channel (5) which is not wrapped by the U-shaped heating rod, and detects and monitors the temperature of the platinum pipeline in real time;
the bending radius of the U-shaped heating rod is 10-80mm larger than the pipe diameter of the molten glass channel (5);
The distance between the first heating rod (1) and the second heating rod (2) is 20mm-80 mm;
The heat insulation structure (4) of the heat insulation device is made of heat-resistant bricks with the thickness of 1-2 mm.
2. A heating method based on the glass liquid channel heating system according to claim 1, comprising the steps of:
S1: the first heating rods (1) and the second heating rods (2) are used in pairs and have the same structure, the directions of the U-shaped openings are opposite in arrangement, and a plurality of pairs of U-shaped heating rods are uniformly distributed along the pipeline direction of the glass liquid channel (5);
S2: a thermocouple (3) is arranged at the center of the U-shaped opening and is used for monitoring the temperature of the platinum pipeline, wherein the area of the glass liquid channel (5) which is not wrapped by the U-shaped heating rod;
S3: each U-shaped heating rod is independently controlled, and current is introduced into the heating rod for heating.
3. The heating method of the glass liquid channel heating system according to claim 2, wherein in the step S3, the glass liquid channel (5) is controlled in sections to be heated by passing current through a U-shaped heating rod, so that the direct energization of the platinum pipeline is avoided, the poor energization loss of the platinum pipeline is reduced, and the service life of the glass liquid channel (5) is prolonged.
4. The heating method of the glass liquid channel heating system according to claim 2, wherein in the step S3, the glass liquid in the glass liquid channel (5) contacts the bending part of the U-shaped heating rod arranged at regular intervals, and flows forward along the axial direction to form fluid, and the thermocouple (3) passing through the glass liquid channel (5) collects the temperature of the glass liquid in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210777636.1A CN115108710B (en) | 2022-07-04 | 2022-07-04 | Glass liquid channel heating system and heating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210777636.1A CN115108710B (en) | 2022-07-04 | 2022-07-04 | Glass liquid channel heating system and heating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115108710A CN115108710A (en) | 2022-09-27 |
| CN115108710B true CN115108710B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210777636.1A Active CN115108710B (en) | 2022-07-04 | 2022-07-04 | Glass liquid channel heating system and heating method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342786A (en) * | 2019-07-08 | 2019-10-18 | 东旭(锦州)精密光电科技有限公司 | Platinum channel |
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- 2022-07-04 CN CN202210777636.1A patent/CN115108710B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342786A (en) * | 2019-07-08 | 2019-10-18 | 东旭(锦州)精密光电科技有限公司 | Platinum channel |
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| Publication number | Publication date |
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| CN115108710A (en) | 2022-09-27 |
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