CN219861032U - Furnace pressure measuring device for glass manufacturing tank furnace - Google Patents
Furnace pressure measuring device for glass manufacturing tank furnace Download PDFInfo
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- CN219861032U CN219861032U CN202321098552.1U CN202321098552U CN219861032U CN 219861032 U CN219861032 U CN 219861032U CN 202321098552 U CN202321098552 U CN 202321098552U CN 219861032 U CN219861032 U CN 219861032U
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- 239000011521 glass Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000005816 glass manufacturing process Methods 0.000 claims 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a glass manufacturing tank furnace pressure measuring device, which comprises a furnace pressure gauge and a pressure taking pipe, wherein one end of the pressure taking pipe is communicated with a tank furnace, the pressure measuring end of the furnace pressure gauge is communicated with the pressure taking pipe, a pressure measuring switch valve is arranged at the pressure measuring end of the furnace pressure gauge, the pressure taking pipe is also communicated with a section of water storage pipe with the height lower than that of the pressure measuring end of the furnace pressure gauge, the upper end of the water storage pipe is provided with a first valve, and the lower end of the water storage pipe is provided with a second valve. This measuring device passes through the retaining union coupling and is getting pressure pipe and the pressure measurement end below of stove pressure gauge, can collect the comdenstion water to avoid producing the error to stove pressure measurement result, in addition, carry out the drainage to the retaining pipe through first valve and second valve control, can continuously measure stove pressure, convenient to use, through simple reasonable installation debugging, can accomplish drainage operation, can get rid of the influence of comdenstion water, accurate measurement stove pressure, and improve work efficiency.
Description
Technical Field
The utility model relates to the technical field of furnace pressure measurement of liquid crystal glass substrate manufacturing furnaces, in particular to a furnace pressure measurement device of a glass manufacturing furnace.
Background
In the field of TFT-LCD liquid crystal glass substrate manufacturing, the measurement of tank furnace pressure is mainly measured through a furnace pressure meter connected with a pressure taking pipe, and because high-temperature and high-humidity gas is in the tank furnace, the gas enters the pressure taking pipe and is liquefied when being cooled, and the gas is accumulated in the pressure taking pipe, so that the measurement error of the furnace pressure is easily caused.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model provides a glass manufacturing tank furnace pressure measuring device.
The utility model provides a glass manufacturing tank furnace pressure measuring device, which comprises a furnace pressure gauge and a pressure taking pipe, wherein one end of the pressure taking pipe is communicated with a tank furnace, the pressure measuring end of the furnace pressure gauge is communicated with the pressure taking pipe, a pressure measuring switch valve is arranged at the pressure measuring end of the furnace pressure gauge, the pressure taking pipe is also communicated with a section of water storage pipe with the height lower than that of the pressure measuring end of the furnace pressure gauge, the upper end of the water storage pipe is provided with a first valve, and the lower end of the water storage pipe is provided with a second valve.
Preferably, the first valve and the second valve are electromagnetic valves, and the first valve and the second valve are respectively connected with the DCS control system to be controlled to be opened or closed.
Preferably, the first valve is a normally open type electromagnetic valve, and the second valve is a normally closed type electromagnetic valve.
Preferably, the upper end and the lower end of the water storage pipe are also connected with a liquid level sensor, and the liquid level sensor is connected with the DCS control system.
Preferably, the pressure gauge adopts a gauge pressure type pressure sensor, the reference end of the pressure gauge is connected with an atmosphere communicating pipe, one end of the atmosphere communicating pipe is open and used for communicating with atmospheric pressure, and the height of the open end of the atmosphere communicating pipe is the same as that of one end of the pressure taking pipe communicating with the tank furnace.
Preferably, the reference end of the furnace pressure gauge is also provided with a reference switch valve.
Preferably, the atmosphere communicating pipe is provided with a section of water accumulating pipe with a height lower than the pressure measuring end of the furnace pressure gauge, and the water accumulating pipe is provided with a third valve.
According to the glass manufacturing tank furnace pressure measuring device, the water storage pipe is connected below the pressure measuring ends of the pressure taking pipe and the furnace pressure meter, condensed water can be collected, so that errors on a furnace pressure measuring result are avoided, in addition, the water storage pipe is drained through the control of the first valve and the second valve, and the furnace pressure can be measured continuously. Therefore, the measuring device is convenient to use, can complete drainage operation through simple and reasonable installation and debugging, can eliminate the influence of condensed water, accurately measures the furnace pressure, and improves the working efficiency.
Drawings
FIG. 1 is a schematic diagram showing a structure of a furnace pressure measuring apparatus for a glass manufacturing tank according to an embodiment 。
Detailed Description
Referring to fig. 1, a device for measuring furnace pressure of a glass manufacturing tank according to an embodiment of the present utility model includes a furnace pressure gauge 1 and a pressure-taking pipe 2, wherein one end of the pressure-taking pipe 2 is used for communicating with a tank 12, a pressure measuring end of the furnace pressure gauge 1 is communicated with the pressure-taking pipe 2, a pressure measuring switch valve 3 is installed at the pressure measuring end of the furnace pressure gauge 1, the pressure-taking pipe 2 is further communicated with a section of water storage pipe 4 with a height lower than that of the pressure measuring end of the furnace pressure gauge 1, a first valve 5 is installed at an upper end of the water storage pipe 4, and a second valve 6 is installed at a lower end of the water storage pipe 4.
According to this furnace pressure measuring device, when measuring the furnace pressure, the pressure measuring switch valve 3 is in an open state, and high-temperature hot steam in the tank furnace 12 enters the pressure measuring end of the furnace pressure gauge 1 through the pressure taking pipe 2, and the furnace pressure is measured. In the whole pressure measuring process, the first valve 5 can be opened, the second valve 6 is closed, condensed water of high-temperature steam can be accumulated in the water storage pipe 4, and the accumulated water is lower than the pressure measuring end of the furnace pressure meter 1, so that errors in furnace pressure measurement are avoided. The water accumulated in the water storage pipe 4 can be discharged by closing the first valve 5 and then opening the second valve 6.
In a further embodiment, in order to make the water storage pipe 4 drain more conveniently, the first valve 5 and the second valve 6 are electromagnetic valves, and the first valve 5 and the second valve 6 are respectively connected with the DCS control system to be controlled to be opened or closed. When draining, the DCS control system is used for controlling the opening and closing of the first valve 5 and the second valve 6 more conveniently.
As a preferred scheme, because the water storage pipe 4 needs to collect condensed water during pressure measurement, in order to save electric energy, the first valve 5 is a normally open electromagnetic valve, and in the power-off state, the first valve 5 is opened and is closed only when the DCS control system powers on the first valve 5. Accordingly, the second valve 6 is preferably a normally closed electromagnetic valve, and in the power-off state, the first valve 5 is closed, so that condensed water is accumulated in the water storage pipe 4, and when the DCS control system powers on the second valve 6, the second valve 6 is opened to drain water.
In order to enable the first valve 5 and the second valve 6 to be connected into the DCS control system for automatic control, the upper end and the lower end of the water storage pipe 4 are also connected with a liquid level sensor 7, and the liquid level sensor 7 is connected with the DCS control system. The liquid level in the water storage pipe 4 is monitored through the liquid level sensor 7, when the liquid level reaches a preset high level, the fact that a large amount of condensed water is accumulated in the water storage pipe 4 and needs to be discharged is indicated, at the moment, the high level liquid level sensor 7 sends a signal to the DCS control system, the DCS control system controls the first valve 5 to be closed, and controls the second valve 6 to be opened, and water is discharged. When the liquid level in the water storage pipe 4 reaches a preset low level or after a fixed period of time, the low level hydraulic sensor sends a signal to the DCS control system, and the DCS control system controls the first valve 5 to be opened and controls the second valve 6 to be closed.
Therefore, according to the furnace pressure measuring device capable of automatically controlling water discharge, manual operation can be omitted by automatically controlling water discharge in the process of measuring the furnace pressure of the tank furnace, and the problem of influence of condensate water on the furnace pressure measurement is solved, and meanwhile, the manual workload can be reduced.
In this embodiment, the gauge pressure type pressure sensor is selected as the gauge pressure gauge 1, one end of the gauge pressure type pressure sensor is a pressure measuring end for communicating with a pressure source to be measured, and the other end of the gauge pressure type pressure sensor is a reference end for communicating with atmospheric pressure. The reference end of the furnace pressure meter 1 is connected with an atmosphere communicating pipe 8, one end of the atmosphere communicating pipe 8 is open to communicate with the atmospheric pressure, and the height of the open end of the atmosphere communicating pipe 8 is the same as the height of one end of the pressure taking pipe 2, which is communicated with the tank furnace 12. The open height of the atmosphere communicating pipe 8 is the same as the height of the pressure taking end of the pressure taking pipe 2 communicated with the tank furnace 12, so that the pressure at the two ends of the furnace pressure gauge 1 is equal in the initial state, and the measurement result is more accurate.
The reference end of the furnace pressure gauge 1 of the gauge pressure type pressure sensor is also provided with a reference switch valve 9 for controlling the opening and closing of the reference end.
In this embodiment, since some condensed water in the air may be accumulated in the atmospheric communication pipe 8, in order to avoid affecting the air pressure at the reference end, the atmospheric communication pipe 8 also has a section of water accumulation pipe 10 with a height lower than the pressure measuring end of the furnace pressure gauge 1, the water accumulation pipe 10 is provided with a third valve 11, the third valve 11 is in a normally closed state, and when the water accumulation pipe 10 needs to be drained, the third valve 11 can be opened to drain water.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The utility model provides a glass manufacture tank furnace pressure measuring device, a serial communication port, including stove pressure gauge (1) and get pressure pipe (2), the one end that gets pressure pipe (2) is used for with the tank furnace intercommunication, the pressure measurement end of stove pressure gauge (1) is with getting pressure pipe (2) intercommunication, pressure switch valve (3) are installed to the pressure measurement end of stove pressure gauge (1), get pressure pipe (2) still to communicate has one section highly to be less than water storage pipe (4) of the pressure measurement end of stove pressure gauge (1), first valve (5) are installed to the upper end of water storage pipe (4), second valve (6) are installed to the lower extreme of water storage pipe (4).
2. The glass manufacturing tank furnace pressure measuring device according to claim 1, wherein the first valve (5) and the second valve (6) are electromagnetic valves, and the first valve (5) and the second valve (6) are respectively connected with a DCS control system to be controlled to be opened or closed.
3. The glass-making tank furnace pressure measuring device according to claim 2, characterized in that the first valve (5) is a normally open solenoid valve and the second valve (6) is a normally closed solenoid valve.
4. The glass manufacturing tank furnace pressure measuring device according to claim 2, wherein the upper end and the lower end of the water storage pipe (4) are also connected with a liquid level sensor (7), and the liquid level sensor (7) is connected with a DCS control system.
5. The glass manufacturing tank furnace pressure measuring device according to any one of claims 1 to 4, wherein the furnace pressure gauge (1) adopts a gauge pressure type pressure sensor, a reference end of the furnace pressure gauge (1) is connected with an atmosphere communicating pipe (8), one end of the atmosphere communicating pipe (8) is opened to communicate with atmospheric pressure, and the height of the opened end of the atmosphere communicating pipe (8) is the same as the height of one end of the pressure taking pipe (2) communicating with the tank furnace.
6. The glass-making tank furnace pressure measuring device according to claim 5, characterized in that the reference end of the furnace pressure gauge (1) is also provided with a reference switch valve (9).
7. The glass-making tank furnace pressure measuring device according to claim 5, characterized in that the atmospheric communication pipe (8) has a length of water accumulation pipe (10) with a height lower than the pressure measuring end of the furnace pressure gauge (1), and that the water accumulation pipe (10) is provided with a third valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321098552.1U CN219861032U (en) | 2023-05-09 | 2023-05-09 | Furnace pressure measuring device for glass manufacturing tank furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321098552.1U CN219861032U (en) | 2023-05-09 | 2023-05-09 | Furnace pressure measuring device for glass manufacturing tank furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219861032U true CN219861032U (en) | 2023-10-20 |
Family
ID=88317584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321098552.1U Active CN219861032U (en) | 2023-05-09 | 2023-05-09 | Furnace pressure measuring device for glass manufacturing tank furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219861032U (en) |
-
2023
- 2023-05-09 CN CN202321098552.1U patent/CN219861032U/en active Active
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