A high-temperature liquid glass medium transmission pipeline temperature control system

Abstract

The application discloses a high-temperature liquid glass medium transmission pipeline temperature control system, which is used for temperature adjustment of high-temperature liquid glass transmitted in a pipeline. The pipeline is composed of an upstream pipe body, a middlestream pipe body and a downstream pipe body which are sequentially connected. The system comprises N first temperature sensors which are fixed on a first annular outer wall of the upstream pipe body in a ring array; N heating units which are fixed on a second annular outer wall of the middlestream pipe body in a ring array, the second annular outer wall has the same axial length as the first annular outer wall; and a central control unit which is connected with the N heating units and controls the N heating units according to first temperature data of the N first temperature sensors. The system is convenient for real-time temperature control of the medium flowing through the pipeline, ensures stable transmission of the medium, avoids the influence of raw material defects on the yield of glass substrates, and improves product quality and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal glass substrate manufacturing technology, and in particular to a temperature control system for a high-temperature liquid glass medium transport pipeline. Background Technology

[0002] In the production of TFT-LCD liquid crystal glass substrates, high-temperature molten glass flows into the glass molding furnace through pipes. After processes such as stretching, molding, stress relief, annealing, and cooling, a glass sheet meeting quality requirements is formed. Due to various factors, the temperature inside the pipes fluctuates continuously. However, once the temperature exceeds the controllable range, which cannot be directly monitored, it will cause quality defects in the glass sheet (such as bright lines). The cause can only be found through quality traceability. Therefore, it is necessary to monitor the temperature around the pipes in real time, detect abnormal temperature fluctuations, and promptly compensate the control unit power to ensure normal production. L-shaped bends are one type of pipe. Currently, relying solely on manual product quality traceability and data analysis is insufficient for timely adjustment based on actual conditions, thus affecting the yield rate of glass sheet processing. Summary of the Invention

[0003] To address the technical problems existing in the background art, the present invention proposes a temperature control system for a high-temperature liquid glass medium transmission pipeline.

[0004] This invention proposes a temperature control system for a high-temperature liquid glass medium transmission pipeline, used to regulate the temperature of high-temperature liquid glass transported within the pipeline. The pipeline consists of an upstream pipe, a midstream pipe, and a downstream pipe connected sequentially, and includes:

[0005] N first temperature sensors are fixed in a ring array on the first annular outer wall of the upstream pipe, either partially or entirely;

[0006] N heating units are fixed in a ring array on a partial or overall second annular outer wall of the midstream pipe, and the second annular outer wall has the same axial length as the first annular outer wall.

[0007] The central control unit controls N heating units connected to it, and controls the N heating units based on the first temperature data received from the N first temperature sensors.

[0008] Preferably, when the M-segment medium flows sequentially through the first annular outer wall region and the second annular outer wall region, the N first temperature sensors have X detection points A corresponding to the M-segment medium, and the N heating units have X heating points corresponding to the M-segment medium. The arrangement positions of the X detection points A and the X heating points are in one-to-one correspondence so that any one of the X detection points A coincides with one of its heating points, X≤N, preferably, X=1.

[0009] Preferably, "controlling N heating units based on the temperature data received from N first temperature sensors" specifically means:

[0010] When the M-segment medium flows through the first annular outer wall region, if the instantaneous temperature detected by the first temperature sensor at its corresponding detection point A is lower than the preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point A to work when the M-segment medium flows through the second annular outer wall region.

[0011] Preferably, it further includes:

[0012] The analysis module is used to calculate the time it takes for the M-segment medium to pass through the second annular outer wall region based on the time it takes for the M-segment medium to enter the first annular outer wall region, the distance between the first and second annular outer wall regions, and the medium flow velocity.

[0013] Preferably, it further includes:

[0014] N second temperature sensors are fixed in a ring array on the outer wall of the third ring, either partially or entirely, of the downstream pipe body;

[0015] The central control unit is also used to control the connection of N heating units to adjust the power of the N heating units according to the second temperature data received from the N second temperature sensors.

[0016] Preferably, when the M-segment medium flows sequentially through the second annular outer wall region and the third annular outer wall region, the N second temperature sensors have X detection points B corresponding to the M-segment medium. The arrangement of the X detection points B and the X heating points corresponds one-to-one so that any one of the X detection points B coincides with one of its heating points, X≤N, preferably, X=1.

[0017] Preferably, "adjusting the power of N heating units based on the second temperature data received from N second temperature sensors" specifically means:

[0018] When the medium in section M flows through the outer wall region of the third ring, if the instantaneous temperature detected by the second temperature sensor at its corresponding detection point B is lower than the preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point B to adjust its working power.

[0019] Preferably, the pipe is an L-shaped bend, which includes a vertical section and a horizontal section, and the vertical section and the horizontal section are arranged perpendicular to each other. The upstream pipe body is specifically composed of a vertical section, and the horizontal section is composed of a midstream pipe body and a downstream pipe body.

[0020] Preferably, it includes: N first temperature sensors, which are fixed in a ring array on a portion or the entire outer wall of the first ring of the vertical part;

[0021] N heating units are fixed in a ring array on a partial second annular outer wall of the horizontal section. The second annular outer wall has the same axial length as the first annular outer wall.

[0022] The central control unit controls N heating units connected to it, and controls the N heating units based on the first temperature data received from the N first temperature sensors.

[0023] Preferably, it further includes:

[0024] The analysis module is used to calculate the time it takes for the M-segment medium to pass through the second annular outer wall region based on the time it takes for the M-segment medium to enter the first annular outer wall region, the distance between the first and second annular outer wall regions, and the medium flow velocity.

[0025] In this invention, a temperature control system for a high-temperature liquid glass medium transmission pipeline is proposed. M segments of medium flow in from the upstream pipe. As the medium flows through the first annular outer wall region, N first temperature sensors monitor the temperature of each segment. When any of the N first temperature sensors detects an instantaneous temperature at its corresponding detection point A that is lower than a preset threshold, the central control unit controls the heating unit corresponding to the heating point coinciding with detection point A to operate when the medium flows through the second annular outer wall region. When the medium flows through the third annular outer wall region, if the second temperature sensor detects an instantaneous temperature at its corresponding detection point B that is lower than the preset threshold, the central control unit controls the heating unit corresponding to the heating point coinciding with detection point B to adjust its operating power. This facilitates real-time temperature control of the medium flowing through the pipeline, ensures stable medium transmission, avoids affecting the yield of glass substrates due to raw material defects, and improves product quality and production efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the system architecture of a temperature control system for a high-temperature liquid glass medium transmission pipeline proposed in this invention;

[0027] Figure 2 This is a schematic diagram of the L-shaped bend temperature control structure of a high-temperature liquid glass medium transmission pipeline temperature control system proposed in this invention.

[0028] Legend:

[0029] 1. Vertical section; 2. Horizontal section; 3. First detection section; 4. Heating section; 5. Second detection section. Detailed Implementation

[0030] Reference Figure 1 and Figure 2This invention proposes a temperature control system for a high-temperature liquid glass medium transmission pipeline, used to regulate the temperature of high-temperature liquid glass transported within the pipeline. The pipeline consists of an upstream pipe, a midstream pipe, and a downstream pipe connected sequentially, including:

[0031] N first temperature sensors are fixed in a ring array on the first annular outer wall of the upstream pipe, either partially or entirely.

[0032] N heating units are fixed in a ring array on the second annular outer wall of the midstream pipe, either partially or entirely. The second annular outer wall has the same axial length as the first annular outer wall.

[0033] The central control unit controls N heating units connected to it, and controls the N heating units based on the first temperature data received from the N first temperature sensors.

[0034] In this embodiment, the input terminal of the central control unit is electrically connected to the output terminals of the N first temperature sensors in a one-to-one correspondence; the output terminal of the central control unit is electrically connected to the input terminals of the N heating units in a one-to-one correspondence.

[0035] Specifically, when the M-segment medium flows sequentially through the first annular outer wall region and the second annular outer wall region, the N first temperature sensors have X detection points A corresponding to the M-segment medium, and the N heating units have X heating points corresponding to the M-segment medium. The arrangement positions of the X detection points A and the X heating points are in one-to-one correspondence so that any one of the X detection points A coincides with one of its heating points, X≤N, preferably, X=1.

[0036] In this embodiment, the medium is high-temperature molten glass, and the flow path of the high-temperature molten glass during the transmission process is the same as the transmission path of the pipeline.

[0037] In this embodiment, the detection location corresponding to detection point A is the end of each segment of the M-segment medium that passes through the first annular outer wall region. The temperature value of the corresponding region of the medium is determined by detecting the temperature around the end of each segment of the medium.

[0038] Specifically, "controlling N heating units based on the temperature data received from N first temperature sensors" means:

[0039] When the M-segment medium flows through the first annular outer wall region, if the instantaneous temperature detected by the first temperature sensor at its corresponding detection point A is lower than the preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point A to work when the M-segment medium flows through the second annular outer wall region.

[0040] In this embodiment, an alarm unit is also included. The input terminal of the alarm unit is electrically connected to the output terminal of the central control unit. When the instantaneous temperature detected by the first temperature sensor at its corresponding detection point A is lower than a preset threshold, the central control unit controls the alarm unit to work and send an alarm message to the terminal.

[0041] Specifically, it also includes:

[0042] The analysis module is used to calculate the time it takes for the M-segment medium to pass through the second annular outer wall region based on the time it takes for the M-segment medium to enter the first annular outer wall region, the distance between the first and second annular outer wall regions, and the medium flow velocity.

[0043] Specifically, it also includes:

[0044] N second temperature sensors are fixed in a ring array on the outer wall of the third ring, either partially or entirely, of the downstream pipe.

[0045] The central control unit is also used to control the connection of N heating units to adjust the power of the N heating units according to the second temperature data received from the N second temperature sensors.

[0046] Specifically, when the M-segment medium flows sequentially through the second annular outer wall region and the third annular outer wall region, the N second temperature sensors have X detection points B corresponding to the M-segment medium. The arrangement of the X detection points B and the X heating points corresponds one-to-one so that any one of the X detection points B coincides with one of its heating points, X≤N, preferably, X=1.

[0047] In this embodiment, the detection point B corresponds to the end of each segment of the M-segment medium that passes through the third annular outer wall region. The temperature value of the corresponding region of the medium is determined by detecting the temperature around the end of each segment.

[0048] Specifically, "adjusting the power of N heating units based on the second temperature data received from N second temperature sensors" means:

[0049] Specifically, when the medium in section M flows through the outer wall region of the third ring, if the instantaneous temperature detected by the second temperature sensor at its corresponding detection point B is lower than the preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point B to adjust its working power.

[0050] Example:

[0051] The pipeline is specifically an L-shaped bend, which includes a vertical section 1 and a horizontal section 2, and the vertical section 1 and the horizontal section 2 are arranged perpendicular to each other. The upstream pipe body is specifically composed of the vertical section 1 and the horizontal section 2, which consists of the midstream pipe body and the downstream pipe body.

[0052] Specifically, it includes: N first temperature sensors, which are fixed in a ring array on a partial or overall first annular outer wall of the vertical part 1, that is, fixed on the first detection part 3.

[0053] N heating units are arranged in a ring array and fixed on a portion of the second annular outer wall of the horizontal part 2. The second annular outer wall has the same axial length as the first annular outer wall, i.e., it is fixed on the heating part 4.

[0054] The central control unit controls N heating units connected to it, and controls the N heating units based on the first temperature data received from the N first temperature sensors.

[0055] Specifically, it also includes:

[0056] The analysis module is used to calculate the time it takes for the M-segment medium to pass through the second annular outer wall region based on the time it takes for the M-segment medium to enter the first annular outer wall region, the distance between the first and second annular outer wall regions, and the medium flow velocity.

[0057] Specifically, it also includes:

[0058] N second temperature sensors are fixed in a ring array on the third ring outer wall of the horizontal part 2, either partially or entirely, i.e., fixed on the second detection part 5.

[0059] The central control unit is also used to control the connection of N heating units to adjust the power of the N heating units according to the second temperature data received from the N second temperature sensors.

[0060] In the specific operation of the high-temperature liquid glass medium transmission pipeline temperature control system of this embodiment, the M-section medium flows in from the upstream pipe. When the M-section medium flows through the first annular outer wall area, N first temperature sensors monitor the temperature of the M-section medium one by one. When any of the N first temperature sensors detects an instantaneous temperature at its corresponding detection point A that is lower than a preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point A to work when the M-section medium flows through the second annular outer wall area. When the M-section medium flows through the third annular outer wall area, if the second temperature sensor detects an instantaneous temperature at its corresponding detection point B that is lower than the preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point B to adjust its working power.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A temperature control system for a high-temperature liquid glass medium transmission pipeline, used to regulate the temperature of high-temperature liquid glass transmitted within the pipeline, the pipeline comprising an upstream pipe body, a midstream pipe body, and a downstream pipe body connected sequentially, characterized in that, include: N first temperature sensors are fixed in a ring array on the first annular outer wall of the upstream pipe, either partially or entirely; N heating units are fixed in a ring array on a partial or overall second annular outer wall of the midstream pipe, and the second annular outer wall has the same axial length as the first annular outer wall. The central control unit controls N heating units connected to it, and controls the N heating units according to the first temperature data received from the N first temperature sensors; When the M-segment medium flows sequentially through the first annular outer wall region and the second annular outer wall region, the N first temperature sensors have X detection points A corresponding to the M-segment medium, and the N heating units have X heating points corresponding to the M-segment medium. The arrangement positions of the X detection points A and the X heating points are one-to-one so that any one of the X detection points A coincides with one of its heating points, X≤N. Specifically, "controlling N heating units based on the first temperature data received from N first temperature sensors" means: When the M-segment medium flows through the first annular outer wall region, if the instantaneous temperature detected by the first temperature sensor at its corresponding detection point A is lower than the preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point A to work when the M-segment medium flows through the second annular outer wall region.

2. The temperature control system for high-temperature liquid glass medium transmission pipeline according to claim 1, characterized in that, X=1。 3. The temperature control system for high-temperature liquid glass medium transmission pipeline according to claim 1, characterized in that, Also includes: The analysis module is used to calculate the time it takes for the M-segment medium to pass through the second annular outer wall region based on the time it takes for the M-segment medium to enter the first annular outer wall region, the distance between the first and second annular outer wall regions, and the medium flow velocity.

4. The temperature control system for a high-temperature liquid glass medium transmission pipeline according to claim 1, characterized in that, Also includes: N second temperature sensors are fixed in a ring array on the outer wall of the third ring, either partially or entirely, of the downstream pipe body; The central control unit is also used to control the connection of N heating units to adjust the power of the N heating units according to the second temperature data received from the N second temperature sensors; When the M-segment medium flows through the second annular outer wall region and the third annular outer wall region in sequence, the N second temperature sensors have X detection points B corresponding to the M-segment medium. The X detection points B are arranged in a one-to-one correspondence with the X heating points so that any one of the X detection points B coincides with one of its heating points, X≤N. Specifically, "adjusting the power of N heating units based on the second temperature data received from N second temperature sensors" means: When the medium in section M flows through the outer wall region of the third ring, if the instantaneous temperature detected by the second temperature sensor at its corresponding detection point B is lower than the preset threshold, the central control unit will control the heating unit corresponding to the heating point that coincides with the detection point B to adjust its working power.

5. The temperature control system for a high-temperature liquid glass medium transmission pipeline according to claim 4, characterized in that, X=1。 6. The temperature control system for a high-temperature liquid glass medium transmission pipeline according to claim 1, characterized in that, The pipeline is specifically an L-shaped bend, which includes a vertical section (1) and a horizontal section (2), and the vertical section (1) and the horizontal section (2) are arranged perpendicularly to each other. The upstream pipe is specifically composed of a vertical section (1) and a horizontal section (2) consisting of a midstream pipe and a downstream pipe.

7. The temperature control system for a high-temperature liquid glass medium transmission pipeline according to claim 6, characterized in that, include: N first temperature sensors are fixed in a ring array on the first ring outer wall of the vertical part (1), either partially or entirely. N heating units are fixed in a ring array on the second annular outer wall of the horizontal part (2), and the second annular outer wall has the same axial length as the first annular outer wall. The central control unit controls N heating units connected to it, and controls the N heating units based on the first temperature data received from the N first temperature sensors.

8. The temperature control system for a high-temperature liquid glass medium transmission pipeline according to claim 7, characterized in that, Also includes: The analysis module is used to calculate the time it takes for the M-segment medium to pass through the second annular outer wall region based on the time it takes for the M-segment medium to enter the first annular outer wall region, the distance between the first and second annular outer wall regions, and the medium flow velocity.

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