CN104729311B - Blowing protective observation window applied to vacuum system - Google Patents
Blowing protective observation window applied to vacuum system Download PDFInfo
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- CN104729311B CN104729311B CN201510166164.6A CN201510166164A CN104729311B CN 104729311 B CN104729311 B CN 104729311B CN 201510166164 A CN201510166164 A CN 201510166164A CN 104729311 B CN104729311 B CN 104729311B
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- flange
- main body
- way main
- observation window
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The invention discloses a blowing protective observation window applied to a vacuum system. The observation window comprises a four-way main body, a grooved flange is fixed at the upper end of the four-way main body, a flange is installed at the lower end of the four-way main body, a first transition flange is fixed at the left end of the four-way main body, and a second transition flange is fixed at the right end of the four-way main body; silica glass is placed in a countersunk groove in the grooved flange, and a sealing rubber ring is arranged between the silica glass and the grooved flange; a jet nozzle portion of a jet nozzle is located inside the four-way main body, the jet nozzle portion is fixedly connected with an inside transition port of the first transition flange, and a gas connection port is located outside the four-way main body. According to the blowing protective observation window applied to the vacuum system, protective gas at a low flow rate is adopted for blowing a silica glass cavity, an independent vacuum pump cooperates to maintain local rough vacuum, the effect toward a furnace body vacuum melting process is reduced, long-time blowing protection is formed for the silica glass observation window, and the pollution of the silica glass caused by evaporation of metallic vapor in the rare-earth metal melting process can be effectively reduced.
Description
Technical field
The invention belongs to vacuum smelting equipment field is and in particular to a kind of air blowing protection being applied to vacuum system is observed
Window.
Background technology
Rare earth metal vacuum melting furnace is the important step in rare-earth metal material melting.The melting of rare earth metal must be
Carry out high-temperature fusion under vacuum state.Temperature range is distributed based on 800 ~ 2400 DEG C of intervals.During smelting metal,
Must actual observation and the practical situation detecting internal molten bath using infrared thermal imagery equipment under the condition of high temperature.Current observation window is
With quartz glass through type, at high operating temperatures due to a large amount of evaporations of high-temperature metal steam, observation window surface is easily steamed
Contaminated vapor, with the passage of smelting time, observing effect is worse and worse.So present observation window effect is undesirable, also can be right
The signals collecting of infrared thermal imagery equipment interferes.For solving the above problems, need design one kind can to observation window quartz glass
Glass surface forms the device of protection.
Content of the invention
The present invention, in order to overcome shortcoming present in prior art to propose, its purpose is to provide a kind of application
Observation window is protected in air blowing in vacuum system.
The technical scheme is that
A kind of air blowing protection observation window being applied to vacuum system, including four-way main body, the upper end of described four-way main body is solid
Surely there is band groove flange, lower end is provided with flange, band groove flange is loop configuration, forms annular groove in its lower end inside,
The number of being fixed with adapter flange on the left of four-way main body, the right side number of being fixed with adapter flange；Quartz glass is positioned over band groove flange
Countersunk head groove in, O-ring seal is placed in quartz glass and with the groove between groove flange；Nozzle includes the spray being interconnected
Mouth and gas interface, spray nozzle part is placed in inside short tube on the left of four-way main body, and with number adapter flange inside converting interface fixing even
Connect, gas interface is placed in four-way body exterior.
Described quartz glass is fixed in band groove flange by negative pressure of vacuum.
The invention has the beneficial effects as follows:
The present invention adopts the protective gas of low discharge to purge quartz glass chamber, and cooperation independent vacuum pump group maintains local low true
Sky, reduces the impact to body of heater Vacuum Melting, is formed and purges protection for a long time to quartz observing window, can effectively reduce dilute
The pollution of the quartz glass that earth metal is caused due to the evaporation of metallic vapour in fusion process.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sectional view of the present invention；
Fig. 3 is the enlarged drawing of a part in Fig. 2.
Wherein:
1 four-way main body 2 carries groove flange
3 flange 4 adapter flanges
No. 5 adapter flange 6 quartz glasss
7 O-ring seal 8 nozzle
9 spray nozzle part 10 gas interface
11 grooves.
Specific embodiment
Carry out with reference to the air blowing protection observation window that Figure of description and embodiment are applied to vacuum system to the present invention
Describe in detail:
As shown in Fig. 1 ~ 3, a kind of air blowing protection observation window being applied to vacuum system, including four-way main body 1, described four-way
The upper end of main body 1 is fixed with band groove flange 2, and lower end is provided with flange 3, and band groove flange 2 is loop configuration, in its lower end
Side forms annular groove 11, the left side number of the being fixed with adapter flange 4 of four-way main body 1, the right side number of being fixed with adapter flange 5；Stone
English glass 6 is positioned in the countersunk head groove with groove flange 2, O-ring seal 7 be placed in quartz glass 6 and with groove flange 2 between
In groove 11；Nozzle 8 includes the spray nozzle part 9 being interconnected and gas interface 10, and spray nozzle part 9 is placed in four-way main body 1 left side short tube
Inside, and be fixedly connected with number adapter flange 4 inner side converting interface, gas interface 10 is placed in outside four-way main body 1.
Described quartz glass 6 is fixed in band groove flange 2 by negative pressure of vacuum.
The right side of described four-way main body 1 connects vacuum pump group by number adapter flange 5, and it is molten that flange 3 connection is passed through in lower end
Furnace body.
The gas interface 10 connective protection compressed gas of described nozzle 8.
600.283.42.ac is strangled in the model Rec of described nozzle 8.
Model kf16-dn63 of described adapter flange.
Model kf40-dn63 of described adapter flange.
Compression protective gas sprays from spray nozzle part 9 front end of nozzle 8, forms air blowing protective barrier, simultaneously in vacuum pump group
Work under, four-way cylinder 1 is internal to keep coarse vacuum negative pressure, reduces and blows to the overall vacuum influence of body of heater.
The present invention adopts the protective gas of low discharge to purge quartz glass chamber, and cooperation independent vacuum pump group maintains local low true
Sky, reduces the impact to body of heater Vacuum Melting, is formed and purges protection for a long time to quartz observing window, can effectively reduce gold
Belong to the pollution of the quartz glass causing in fusion process due to the evaporation of metallic vapour.
Claims (2)
1. a kind of air blowing protection observation window being applied to vacuum system, including four-way main body (1) it is characterised in that: described four-way
The upper end of main body (1) is fixed with band groove flange (2), and lower end is provided with flange (3), and band groove flange (2) is loop configuration,
Its lower end inside forms annular groove (11), the left side number of being fixed with adapter flange (4) of four-way main body (1), and right side is fixed with
Number adapter flange (5)；Quartz glass (6) is positioned in the countersunk head groove with groove flange (2), and O-ring seal (7) is placed in quartzy glass
Glass (6) and with the groove (11) between groove flange (2)；Nozzle (8) includes spray nozzle part (9) and the gas interface being interconnected
(10), spray nozzle part (9) is placed in inside short tube on the left of four-way main body (1), and with a number adapter flange (4) inside converting interface fixing even
Connect, it is outside that gas interface (10) is placed in four-way main body (1).
2. a kind of air blowing protection observation window being applied to vacuum system according to claim 1 it is characterised in that: described stone
English glass (6) is fixed in band groove flange (2) by negative pressure of vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510166164.6A CN104729311B (en) | 2015-04-10 | 2015-04-10 | Blowing protective observation window applied to vacuum system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510166164.6A CN104729311B (en) | 2015-04-10 | 2015-04-10 | Blowing protective observation window applied to vacuum system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104729311A CN104729311A (en) | 2015-06-24 |
| CN104729311B true CN104729311B (en) | 2017-02-01 |
Family
ID=53453444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510166164.6A Active CN104729311B (en) | 2015-04-10 | 2015-04-10 | Blowing protective observation window applied to vacuum system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104729311B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174161B (en) * | 2018-01-05 | 2019-03-05 | 清华大学 | A kind of electron beam figuration manufacture visual monitor system of anti-metal vapors pollution |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1017088B (en) * | 1988-04-06 | 1992-06-17 | 品川白炼瓦株式会社 | Observing device in hot furnace |
| CA2015524A1 (en) * | 1989-08-07 | 1991-02-07 | Neil Anthony Johnson | Clean window for processing enclosure |
| JP2003074836A (en) * | 2001-08-30 | 2003-03-12 | Ngk Insulators Ltd | Melting furnace monitoring window device |
| CN202660933U (en) * | 2011-12-05 | 2013-01-09 | 贵阳铝镁设计研究院有限公司 | Furnace inspection window capable of automatically blowing |
| JP3178056U (en) * | 2012-06-18 | 2012-08-30 | ヒビノデータコム株式会社 | Observation window structure of the furnace |
| CN103913072B (en) * | 2014-04-09 | 2016-01-20 | 宝钢工程技术集团有限公司 | A kind of automatically cleaning observation window device |
| CN204612509U (en) * | 2015-04-10 | 2015-09-02 | 核工业理化工程研究院 | A kind of air blowing protection observation window being applied to vacuum system |
-
2015
- 2015-04-10 CN CN201510166164.6A patent/CN104729311B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104729311A (en) | 2015-06-24 |
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