CN102051468B - Reducing atmosphere heat treatment furnace - Google Patents
Reducing atmosphere heat treatment furnace Download PDFInfo
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- CN102051468B CN102051468B CN 201010575609 CN201010575609A CN102051468B CN 102051468 B CN102051468 B CN 102051468B CN 201010575609 CN201010575609 CN 201010575609 CN 201010575609 A CN201010575609 A CN 201010575609A CN 102051468 B CN102051468 B CN 102051468B
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Abstract
The invention discloses a reducing atmosphere heat treatment furnace. The heat treatment furnace comprises a furnace body with a feeding hole and a discharging hole, and safety devices, wherein the furnace body is provided with a sealed preheating channel, a reducing atmosphere heating chamber, a jet flow cooling chamber and a cooling channel in turn from the feeding hole to the discharging hole; and the safety devices are arranged at the feeding hole and the discharging hole respectively and remove oxygen leaked in a hearth through combustion. The safety devices are arranged at the feeding hole and the discharging hole of the furnace body, so that the oxygen is effectively prevented from entering the furnace, the safety of the reducing atmosphere heat treatment furnace is improved, and the heat treatment requirement of a nuclear U-shaped tube is met.
Description
Technical field
The present invention relates to a kind of reducing gas HTFX, particularly be applied to the heat treated perhydro heat treatment furnace of nuclear level pipe.
Background technology
The reducing atmosphere heat treatment furnace is meant the heating installation as protective atmosphere such as the reducing gas that leads to hydrogen.The perhydro stove that comparatively commonly leads to hydrogen in the reducing atmosphere heat treatment furnace.The perhydro stove promptly refers to the process furnace of 100% hydrogen as protective atmosphere.At present, hydrogen furnace has vertical and horizontal two kinds.Heating element adopts molybdenum filament (fusing point of molybdenum is 2630 ℃) usually, and shell is a metal, keeps resistance to air loss good.Kiln furnitures are used molybdenum boat always, but continuous production, efficient are high.Vertical hydrogen furnace and horizontal similar, floor space is less, is applicable to small serial production.Hydrogen furnace can be used for metal parts annealing that ceramic post sintering or metallization, soldering, the sealing-in of glass part use and purification etc.Also can be used as the sintering of powder metallurgy and semiconductor alloy etc.Be in operation and note the safety of gas circuit, circuit and water system, especially will prevent the air that bleeds, in order to avoid cause high-temperature hydrogen spontaneous combustion explosion hazard.Hydrogen furnace of the prior art is particularly taked the hydrogen furnace of continuous processing, and the charging and discharging end is the open type structure, and air is very easy to get into the interior furnace atmosphere that influences of heating chamber of body of heater, and this nuclear level pipe thermal treatment never allows.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes prior art, and a kind of improved reducing atmosphere heat treatment furnace is provided.
For solving above technical problem, the present invention takes following technical scheme:
A kind of reducing atmosphere heat treatment furnace; It comprises the body of heater with opening for feed and discharge port; Said body of heater has the sealing preheating channel that the direction from said opening for feed to discharge port is arranged in order, heating chamber, jet flow cooling room and the cooling channel of reducing atmosphere, and said heat treatment furnace also comprises the security device that is separately positioned on opening for feed and discharge port position, removes the oxygen that bleeds in the burner hearth through burning.
According to further embodiment of the present invention: said security device comprises and links to each other with two poles respectively and stretch into first conducting rod and second conducting rod in said opening for feed or the discharge port, be set in porcelain tube and the wire spiral that is wrapped in the porcelain tube periphery of the periphery that stretches into the part in said opening for feed or the discharge port of first conducting rod and second conducting rod that the two ends of said wire spiral are electrically connected with first conducting rod and second conducting rod respectively.Said first conducting rod is tightly connected through flange with the housing of body of heater with second conducting rod mutually, the part that is positioned at opening for feed or discharge port of first conducting rod and second conducting rod towards the inboard gradually near but do not contact.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage:
The present invention has the security device that can remove oxygen through burning through opening for feed and the setting of discharge port position at body of heater, has effectively avoided oxygen to get in the heating chamber of body of heater, improves the security of perhydro stove, satisfies and examines level pipe heat treatment requirements.
Description of drawings
Fig. 1 is the structural representation according to reducing atmosphere heat treatment furnace of the present invention;
Fig. 2 is the partial schematic diagram of safety arrangement in accordance with the present invention;
Wherein: 1, body of heater; 10, opening for feed; 11, discharge port; 12, sealing preheating channel; 13, heating chamber; 14, jet flow cooling room; 15, cooling channel; 2, security device; 3, first conducting rod; 4, second conducting rod; 5, wire spiral; 6, feed end roller platform; 8, feed end network chain transport unit; 9, the online swabbing pig of network chain; 16, discharge end roller platform; 17, porcelain tube; 18, housing.
Embodiment
Below in conjunction with concrete embodiment and accompanying drawing the present invention is further described, but the invention is not restricted to this embodiment.
As shown in Figure 1, can be used as the industrial furnace that continuous bright is handled under the perhydro protective atmosphere of nuclear level U type pipe according to the reducing atmosphere heat treatment furnace of present embodiment.Heat treatment furnace comprises the online swabbing pig of body of heater 1, feed end roller platform 6, feed end network chain transport unit 8, network chain with opening for feed 10 and discharge port 11 9, discharge end roller platform 16 and system (not shown).Said body of heater 1 has the sealing preheating channel 12 that the direction towards discharge port 11 is arranged in order from opening for feed 10, heating chamber 13, jet flow cooling room 14 and the cooling channel 15 of perhydro gas atmosphere.In addition, the opening for feed 10 at body of heater 1 also is respectively arranged with security device 2 with discharge port 11 positions.The action principle of this security device 2 is energising heating, in case oxygen occurs, then the inflammable gas and the oxygen combustion at opening for feed 10 and discharge port 11 places reach the deoxygenation purpose.The heat treatment furnace of present embodiment is owing to establish combustion completion device 2 in opening for feed 10 and discharge port 11 positions; In case then air bleeds opening for feed 10 or discharge port 11 places; Security device 2 can be removed airborne oxygen immediately; Thereby nuclear level U type pipe heat treatment requirements is satisfied in the threat that the increase of effectively having avoided oxygen in the heating chamber 13 causes security.
Security device 2 can be realized according to the technique means of routine.In this example; Security device 2 comprises and links to each other with two poles respectively and stretch into first conducting rod 3 and second conducting rod 4 in said opening for feed 10 or the discharge port 11, be set in porcelain tube 17 and the wire spiral 5 that is wrapped in porcelain tube 17 peripheries of the periphery of the interior part of the said opening for feed 10 of stretching into of first conducting rod 3 and second conducting rod 4 or discharge port 11 that the two ends of said wire spiral 5 are electrically connected with first conducting rod 3 and second conducting rod 4 respectively.The housing 18 of first conducting rod 3 and second conducting rod 4 and body of heater 1 is tightly connected through flange mutually, the part that is positioned at opening for feed 10 or discharge port 11 of first conducting rod 3 and second conducting rod 4 towards the inboard gradually near but do not contact.When heat treatment furnace was worked, security device 2 was in switch-on regime always, and wire spiral 5 energising heating are also sent aura, in case air admission is arranged, oxygen wherein will burn with inflammable gas (hydrogen).
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. reducing atmosphere heat treatment furnace; The body of heater (1) that comprises have opening for feed (10) and discharge port (11); Said body of heater (1) has heating chamber (13), jet flow cooling room (14) and cooling channel (15) of the direction to discharge port (11) is arranged in order from said opening for feed (10) sealing preheating channel (12), reducing atmosphere; It is characterized in that: said heat treatment furnace also comprises the security device (2) that is separately positioned on said opening for feed (10) and said discharge port (11) position, removes the oxygen that bleeds in the burner hearth through burning; Said security device comprises and links to each other with two poles respectively and stretch into first conducting rod (3) and second conducting rod (4) in said opening for feed (10) or the discharge port (11), be set in porcelain tube (17) and the wire spiral (5) that is wrapped in said porcelain tube (17) periphery of the periphery that stretches into the interior part of said opening for feed (10) or discharge port (11) of said first conducting rod (3) and second conducting rod (4) that the two ends of said wire spiral (5) are electrically connected with said first conducting rod (3) and second conducting rod (4) respectively.
2. reducing atmosphere heat treatment furnace according to claim 1; It is characterized in that: said first conducting rod (3) is tightly connected through flange with the housing (18) of said body of heater (1) with second conducting rod (4) mutually, the part that is positioned at said opening for feed (10) or discharge port (11) of first conducting rod (3) and second conducting rod (4) towards the inboard gradually near but do not contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010575609 CN102051468B (en) | 2010-12-07 | 2010-12-07 | Reducing atmosphere heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010575609 CN102051468B (en) | 2010-12-07 | 2010-12-07 | Reducing atmosphere heat treatment furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102051468A CN102051468A (en) | 2011-05-11 |
| CN102051468B true CN102051468B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010575609 Active CN102051468B (en) | 2010-12-07 | 2010-12-07 | Reducing atmosphere heat treatment furnace |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250614A (en) * | 2008-03-19 | 2008-08-27 | 苏州中门子科技有限公司 | Heat treatment furnace with built-in euthermic gas generation device |
| CN101270406A (en) * | 2008-05-06 | 2008-09-24 | 浙江海亮股份有限公司 | Direct combustion type metallic tube bright heat treatment furnace |
| CN201203113Y (en) * | 2007-11-25 | 2009-03-04 | 林上青 | Electrical heating irradiation gas burner |
| CN201908112U (en) * | 2010-12-07 | 2011-07-27 | 苏州中门子科技有限公司 | Reducing-atmosphere heat-treating furnace |
-
2010
- 2010-12-07 CN CN 201010575609 patent/CN102051468B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203113Y (en) * | 2007-11-25 | 2009-03-04 | 林上青 | Electrical heating irradiation gas burner |
| CN101250614A (en) * | 2008-03-19 | 2008-08-27 | 苏州中门子科技有限公司 | Heat treatment furnace with built-in euthermic gas generation device |
| CN101270406A (en) * | 2008-05-06 | 2008-09-24 | 浙江海亮股份有限公司 | Direct combustion type metallic tube bright heat treatment furnace |
| CN201908112U (en) * | 2010-12-07 | 2011-07-27 | 苏州中门子科技有限公司 | Reducing-atmosphere heat-treating furnace |
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| Publication number | Publication date |
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| CN102051468A (en) | 2011-05-11 |
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