CN104671638B - A kind of system and method for control noble metal channel atmospheric condition - Google Patents
A kind of system and method for control noble metal channel atmospheric condition Download PDFInfo
- Publication number
- CN104671638B CN104671638B CN201410853830.9A CN201410853830A CN104671638B CN 104671638 B CN104671638 B CN 104671638B CN 201410853830 A CN201410853830 A CN 201410853830A CN 104671638 B CN104671638 B CN 104671638B
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- CN
- China
- Prior art keywords
- air
- airtight cavity
- noble metal
- metal channel
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000156 glass melt Substances 0.000 claims abstract description 17
- 239000001257 hydrogen Substances 0.000 claims abstract description 15
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000006722 reduction reaction Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a kind of system and method for control noble metal channel atmospheric condition, it is therefore intended that：Reduction glass melts contacts surface hydrogen content with noble metal channel, the formation of gaseous inclusions and blibbing formed in reduction liquid-crystalline glasses manufacturing process with the oxidation reaction of noble metal channel generation, reduction glass melts in transmit process, the technical scheme used for：Including airtight cavity, noble metal channel is located in airtight cavity, the port of export of described airtight cavity is connected with air transport device, air transport device is connected to air-treatment unit, air-treatment unit is connected to the entrance point of airtight cavity, airtight cavity, air transport device and air-treatment unit are made up of closed circulation loop air channel, and air transport device and air-treatment unit are connected to controller；The entrance point of airtight cavity is provided with vapor adding apparatus and steam dual pressure controller；The sensor of atmospheric condition can be detected by being provided with airtight cavity, and sensor is connected to feedback controller.
Description
Technical field
The invention belongs to liquid-crystalline glasses manufacture field, and in particular to a kind of system of control noble metal channel atmospheric condition and
Method.
Background technology
It is expensive according to technological requirement, it is necessary to solve glass melts in transmit process during the liquid-crystalline glasses manufacturing
Many kinds of oxidation reaction can occur in the event of high temperatures for metal passage and refractory material, and the gas that oxidation is produced can cause glass to melt
Liquid formation formation of gaseous inclusions and blibbing, with atmosphere (oxygen, hydrogen, humidity, temperature, the air-flow in this stove area and noble metal channel area
Speed) turn into the key parameter of control.
The content of the invention
In order to solve the problems of the prior art, the present invention proposes that one kind can reduce glass melts and be connect with noble metal channel
The oxidation reaction occurred in surface hydrogen content, reduction liquid-crystalline glasses manufacturing process with noble metal channel is touched, glass melts is reduced and exists
The formation of gaseous inclusions and the system and method for the control noble metal channel atmospheric condition of blibbing formed in transmit process.
In order to realize the above object the technical solution adopted in the present invention is：
A kind of system for controlling noble metal channel atmospheric condition, including the airtight cavity provided with import and export, noble metal channel
In airtight cavity, the port of export of described airtight cavity is connected with air transport device, and air transport device is connected to sky
Gas disposal unit, air-treatment unit is connected to the entrance point of airtight cavity, airtight cavity, air transport device and air-treatment
Unit is made up of closed circulation loop air channel, and air transport device and air-treatment unit are connected to controller；It is described
The entrance point of airtight cavity be provided with vapor adding apparatus and steam dual pressure controller；It is provided with described airtight cavity
The sensor of atmospheric condition can be detected, sensor is connected to feedback controller, and described feedback controller and steam height is voltage-controlled
Device processed is connected to controller, can control the atmospheric condition in airtight cavity.
Described sensor includes temperature sensor, humidity sensor, pressure sensor and dew point transducer.
Described air transport device includes fresh air motor-driven valve, and the blower fan chain with fresh air motor-driven valve.
Fire resisting damper is provided with described circulation loop, fire resisting damper is chain with blower fan.
Frequency converter is provided with described blower fan.
It is provided with the hot water pipe for cooling or heat cycles loop, hot and cold water pipeline and sets in described circulation loop
Electric two-way valve is equipped with, electric two-way valve is chain with blower fan.
The port of export of described airtight cavity is provided with temperature sensor, humidity sensor, pressure sensor and dew point and passed
Sensor, temperature sensor, humidity sensor, pressure sensor and dew point transducer are connected to feedback controller.
Temperature sensor is provided with described air transport device and air-treatment unit, temperature sensor is connected to
Feedback controller.
Noble metal channel, is enclosed in airtight cavity by a kind of method for controlling noble metal channel atmospheric condition first, close
Closed chamber body, air transport device and air-treatment unit constitute closed circulation loop, and by vapor adding apparatus to following
Loop back path adds vapor, then gathers temperature, humidity, pressure and the dew point information of circulation loop respectively using sensor, and
Feedback controller is fed back to, feedback controller sends information to controller；Last controller control air transport device, air
Temperature, humidity, pressure and the dew point parameter in unit and vapor adding apparatus regulation airtight cavity are handled, glass melts are reduced
The hydrogen content on surface is contacted with noble metal channel, formation of gaseous inclusions and surface gas that glass melts are formed in transmit process is reduced
Bubble.
Need to keep positive pressure environment in seal cavity in described method, and pressure is less than or equal to 15pa.
Compared with prior art, noble metal channel is enclosed in airtight cavity by system of the invention, utilizes airtight cavity, sky
Gas conveying device and air-treatment unit constitute a closed circulation loop, are added using vapor adding apparatus to circulation loop
Enter vapor, detect that temperature, humidity, pressure and dew point in airtight cavity are believed by the sensor being arranged in airtight cavity
Breath, and oxygen in air transport device, air-treatment unit and vapor adding apparatus, regulation airtight cavity is controlled by controller
Content, hydrogen content, humidity, temperature, air velocity etc., reach that reduction glass melts contact the hydrogen on surface with noble metal channel and contained
The oxidation reaction occurred in amount, reduction liquid-crystalline glasses manufacturing process with noble metal channel, reduces glass melts in transmit process
The formation of gaseous inclusions and blibbing of formation.
Further, gathered using temperature sensor, humidity sensor, pressure sensor and dew point transducer in airtight cavity
Temperature, humidity, pressure and dew point information, and be sent to controller, oxygen content, hydrogen content, humidity, temperature in regulation airtight cavity
The parameters such as degree, air velocity.
Further, fresh air motor-driven valve and blower fan are chain, and fresh air motor-driven valve is started or stoped with blower fan, and open or close
Close, it is ensured that the stability of whole device.
Further, fire resisting damper and blower fan are chain, and fire resisting damper is closed, and blower fan is out of service, and the shutdown signal of fire resisting damper will
Fire protection control center is transported to, the safety coefficient of whole device is improved.
Further, blower fan wears frequency converter, can make pressure value of the rotation speed of fan of air transport device on airduct
Automatically control.
Further, circulation loop can be cooled down or heated by hot water pipe, airtight cavity is guaranteed at conjunction
Suitable temperature.
Further, the port of export of airtight cavity sets temperature sensor, humidity sensor, pressure sensor and dew point sensor
Device, enables whole device to obtain more precise control.
Further, the temperature sensor on air transport device and air-treatment unit, enables whole device more smart
True control temperature.
Noble metal channel is placed in airtight cavity in the method for the present invention, by air-treatment unit in airtight cavity
Air-flow be controlled, using the control form of closed circulation, to the oxygen content in airtight cavity, hydrogen content, humidity, temperature,
Air velocity is controlled, and is reached that reduction glass melts contact the purpose of the hydrogen content on surface with noble metal channel, is reduced glass
Formation of gaseous inclusions and blibbing that liquation is formed in transmit process.
Further, need to keep positive pressure environment in seal cavity, and pressure is more than ambient pressure, it is ensured that the inventive method
Safety and stability, improves control effect.
Brief description of the drawings
Fig. 1 is the structural representation of present system；
Wherein, 1 it is airtight cavity, 2 be noble metal channel, 3 be glass melts, 4 be air transport device, 5 is at air
Reason unit, 6 be vapor adding apparatus, 7 be steam dual pressure controller.
Embodiment
With reference to embodiment, the invention will be further described.
Referring to Fig. 1, a kind of system of control noble metal channel atmospheric condition, including the airtight cavity 1 provided with import and export,
Noble metal channel 2 is located in airtight cavity 1, and the port of export of described airtight cavity 1 is connected with air transport device 4, and air is defeated
Device 4 is sent to be connected to air-treatment unit 5, air-treatment unit 5 is connected to the entrance point of airtight cavity 1, airtight cavity 1, sky
Gas conveying device 4 and air-treatment unit 5 are made up of closed circulation loop, air transport device 4 and air-treatment air channel
Unit 5 is connected to controller；The entrance point of described airtight cavity 1 is provided with vapor adding apparatus 6 and steam height is voltage-controlled
Device 7 processed；The sensor of atmospheric condition can be detected by being provided with described airtight cavity 1, and sensor is connected to feedback controller,
Described feedback controller and steam dual pressure controller 7 is connected to controller, can control the atmospheric condition in airtight cavity 1.
Sensor includes temperature sensor, humidity sensor, pressure sensor and dew point transducer.
Air transport device 4 includes fresh air motor-driven valve, and the blower fan chain with fresh air motor-driven valve.Set in circulation loop
There is fire resisting damper, fire resisting damper is chain with blower fan.Frequency converter is provided with blower fan.
It is provided with circulation loop on the hot water pipe for cooling or heat cycles loop, hot and cold water pipeline and is provided with electricity
Dynamic two-port valve, electric two-way valve is chain with blower fan.
The port of export of airtight cavity 1 is provided with temperature sensor, humidity sensor, pressure sensor and dew point transducer,
Temperature sensor, humidity sensor, pressure sensor and dew point transducer are connected to feedback controller.
Temperature sensor is provided with air transport device 4 and air-treatment unit 5, temperature sensor is connected to feedback
Controller.
Referring to Fig. 1, noble metal channel 2 is enclosed in closed by a kind of method of control noble metal channel atmospheric condition first
In cavity 1, airtight cavity 1, air transport device 4 and air-treatment unit 5 constitute closed circulation loop, and pass through vapor
Adding apparatus 6 adds vapor to circulation loop, then gathers the temperature, humidity, pressure of circulation loop respectively using sensor
And dew point information, and feedback controller is fed back to, feedback controller sends information to controller；Last controller control air
Temperature, humidity, pressure and dew point in conveying device 4, air-treatment unit 5 and the regulation airtight cavity 1 of vapor adding apparatus 6
Parameter, reduction glass melts 3 contact the hydrogen content on surface with noble metal channel 2, reduce glass melts 3 and are formed in transmit process
Formation of gaseous inclusions and blibbing.Need to keep positive pressure environment in seal cavity 1 in method, and pressure is less than or equal to
15pa。
Passage refractory material, noble metal channel 2, stirring rod etc. is protected to occur many kinds of oxidation reaction, the gas of circulation loop
Mixture in contained oxide should be less than the oxidizing condition of noble metal.The pressure of mixed airflow is less than or equal to 15pa, protects
Demonstrate,prove the external malleation of cavity.The fresh wind port aperture of pressure sensor P control air-treatment units in cavity is protected come control pressure
Stream pressure needed for card is in the desired atmosphere of cavity.The temperature, humidity, dew point of airtight cavity 1 are controlled, is in certain gas
The reaction of the surface oxidation of noble metal channel 2 and reduction reaction is set to keep balance under atmosphere.
The temperature of mixed airflow should ensure that in the desired atmosphere of airtight cavity 1 humidity of mixed airflow should ensure that close
In the desired atmosphere of closed chamber body 1, the dew-point temperature in airtight cavity 1 should be in the desired atmosphere of airtight cavity.
The air-flow in airtight cavity 1 is controlled by air-treatment unit 5, using the control form of closed circulation,
Oxygen content in airtight cavity 1, hydrogen content, humidity, temperature, air velocity are controlled.Reach reduction glass melts 3 with it is expensive
The purpose of the hydrogen content on the contact of metal passage 2 surface, reduces formation of gaseous inclusions and table that glass melts 3 are formed in transmit process
Face bubble.
Noble metal channel 2 is sealed into a cavity by the present invention；Airtight cavity 1 needs to keep hypoxemia wet environment, its malleation
Slightly larger than ambient pressure.Multiple sensors are set in circulation loop：Dew point transducer, humidity sensor, temperature sensor, pressure
Force snesor, gas analyzing apparatus etc., by controlling chilled-water flow, steam flow, gas flow rate, and ensure in cavity just
Pressure.In present system, steam, which is decomposed, produces the speed that the speed of hydrogen need to permeate more than or equal to each section of hydrogen of noble metal channel, subtracts
The generation of few bubble and Precious metal oxidation speed.
Temperature, humidity, Stress control：
The electric two-way valve on the cold water pipes of air-treatment unit 5 is controlled by the temperature sensor for being located at airtight cavity 1,
Cool water quantity is adjusted, to reach airtight cavity intrinsic parameter；Air-treatment unit 5 is controlled by the humidity sensor for being located at airtight cavity 1
Cold water pipes on motor-driven valve or dry steam humidifier regulating pondage or humidification amount, to reach parameter that cavity is relative；By pressing
Electrically operated valve aperture on force snesor control fresh air pipeline, to reach that pressure difference control is required in airtight cavity.
The blower fan of air transport device 4 in present system wears frequency converter, the rotation speed of fan of air transport device 4 by
Pressure value on airduct is automatically controlled.
Fire resisting damper is chain with blower fan, and fire resisting damper is closed, and blower fan is out of service, and the shutdown signal of its fire resisting damper, which will be transported to, to disappear
Anti- control centre.
Fresh air motor-driven valve and corresponding blower fan are chain, and fresh air electric closed valve is opened or closed as blower fan is started or stoped
Close.
Electric two-way valve and pressure fan are chain on hot and cold water pipeline, and when pressure fan is run, electric two-way valve should work, on the contrary
Then close.
Claims (7)
1. a kind of system for controlling noble metal channel atmospheric condition, it is characterised in that：Including the airtight cavity provided with import and export
(1), noble metal channel (2) is located in airtight cavity (1), and the port of export of described airtight cavity (1) is connected with air conveying dress
Put (4), air transport device (4) is connected to air-treatment unit (5), air-treatment unit (5) is connected to airtight cavity (1)
Entrance point, airtight cavity (1), air transport device (4) and air-treatment unit (5) constitute closed be recycled back to by air channel
Road, air transport device (4) and air-treatment unit (5) are connected to controller；The entrance point of described airtight cavity (1) is set
It is equipped with vapor adding apparatus (6) and steam dual pressure controller (7)；Gas can be detected by being provided with described airtight cavity (1)
The sensor of atmosphere condition, sensor is connected to feedback controller, described feedback controller and steam dual pressure controller (7) connection
To controller, the atmospheric condition in airtight cavity (1) can be controlled；
Described air transport device (4) includes fresh air motor-driven valve, and the blower fan chain with fresh air motor-driven valve；Described circulation
It is provided with loop on the hot water pipe for cooling or heat cycles loop, hot and cold water pipeline and is provided with electric two-way valve, electricity
Dynamic two-port valve is chain with blower fan, fire resisting damper is additionally provided with circulation loop, fire resisting damper is chain with blower fan.
2. a kind of system for controlling noble metal channel atmospheric condition according to claim 1, it is characterised in that：Described biography
Sensor includes temperature sensor, humidity sensor, pressure sensor and dew point transducer.
3. a kind of system for controlling noble metal channel atmospheric condition according to claim 1, it is characterised in that：Described wind
Frequency converter is provided with machine.
4. a kind of system for controlling noble metal channel atmospheric condition according to claim 1, it is characterised in that：Described is close
The port of export of closed chamber body (1) is provided with temperature sensor, humidity sensor, pressure sensor and dew point transducer, TEMP
Device, humidity sensor, pressure sensor and dew point transducer are connected to feedback controller.
5. a kind of system for controlling noble metal channel atmospheric condition according to claim 1, it is characterised in that：Described sky
Temperature sensor is provided with gas conveying device (4) and air-treatment unit (5), temperature sensor is connected to feedback control
Device.
6. a kind of control noble metal using the system that noble metal channel atmospheric condition is controlled as described in claim any one of 1-5
The method of passage atmospheric condition, it is characterised in that：Noble metal channel (2) is enclosed in airtight cavity (1) first, airtight cavity
(1), air transport device (4) and air-treatment unit (5) constitute closed circulation loop, and pass through vapor adding apparatus
(6) vapor is added to circulation loop, then gathers temperature, humidity, pressure and the dew point of circulation loop respectively using sensor
Information, and feedback controller is fed back to, feedback controller sends information to controller；Last controller control air conveying dress
Put (4), temperature, humidity, pressure and dew in air-treatment unit (5) and vapor adding apparatus (6) regulation airtight cavity (1)
Point parameter, reduction glass melts (3) contact the hydrogen content on surface with noble metal channel (2), reduce glass melts (3) and are transmitting
The formation of gaseous inclusions and blibbing formed in journey.
7. a kind of method for controlling noble metal channel atmospheric condition according to claim 6, it is characterised in that：Described side
Need to keep positive pressure environment in seal cavity (1) in method, and pressure is less than or equal to 15Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853830.9A CN104671638B (en) | 2014-12-31 | 2014-12-31 | A kind of system and method for control noble metal channel atmospheric condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410853830.9A CN104671638B (en) | 2014-12-31 | 2014-12-31 | A kind of system and method for control noble metal channel atmospheric condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104671638A CN104671638A (en) | 2015-06-03 |
| CN104671638B true CN104671638B (en) | 2017-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410853830.9A Active CN104671638B (en) | 2014-12-31 | 2014-12-31 | A kind of system and method for control noble metal channel atmospheric condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104671638B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107188392B (en) * | 2017-06-08 | 2020-05-01 | 郑州旭飞光电科技有限公司 | Microcirculation device and platinum channel system with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297854A (en) * | 1999-11-20 | 2001-06-06 | 肖特玻璃制造厂 | Method for improving quality of glass |
| CN101166696A (en) * | 2005-04-27 | 2008-04-23 | 康宁股份有限公司 | System and method for controlling the environment around one or more vessels in a glass manufacturing system |
| CN102898016A (en) * | 2012-08-06 | 2013-01-30 | 彩虹显示器件股份有限公司 | Apparatus and method for inhibiting TFT-LCD substrate glass bubbles |
-
2014
- 2014-12-31 CN CN201410853830.9A patent/CN104671638B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297854A (en) * | 1999-11-20 | 2001-06-06 | 肖特玻璃制造厂 | Method for improving quality of glass |
| CN101166696A (en) * | 2005-04-27 | 2008-04-23 | 康宁股份有限公司 | System and method for controlling the environment around one or more vessels in a glass manufacturing system |
| CN102898016A (en) * | 2012-08-06 | 2013-01-30 | 彩虹显示器件股份有限公司 | Apparatus and method for inhibiting TFT-LCD substrate glass bubbles |
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| CN104671638A (en) | 2015-06-03 |
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