CN103673611B - A kind of rapid quenching tubular heater of use for laboratory band protective atmosphere - Google Patents
A kind of rapid quenching tubular heater of use for laboratory band protective atmosphere Download PDFInfo
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- CN103673611B CN103673611B CN201310750314.9A CN201310750314A CN103673611B CN 103673611 B CN103673611 B CN 103673611B CN 201310750314 A CN201310750314 A CN 201310750314A CN 103673611 B CN103673611 B CN 103673611B
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Abstract
The invention discloses a kind of rapid quenching tubular heater of use for laboratory band protective atmosphere, comprising: stove outer covering, heating and thermal insulation mechanism and sealing mechanism, heating and thermal insulation mechanism is located in stove outer covering; Described stove outer covering comprises display pipe, right end cap, left end flanged pipe, rectangular flange pipe, lower seal pipe and vacuum chamber housing pipe, and described vacuum chamber housing pipe is welded on display pipe, forms vacuum chamber between the inwall of vacuum chamber housing pipe and the outer wall of display pipe; Described right end cap and left end flanged pipe are welded on display pipe two ends respectively, and described lower seal pipe to be welded on the downside of display pipe and near described right end cap; Described rectangular flange pipe is welded on right end cap, and rectangular flange pipe is communicated with described lower seal pipe.By the way, when the present invention can make material sample be quenched, can immerse with the shortest time quenching bath that hardening media is housed, ensure quenching effect; Hardening step safety, seldom exposes in atmosphere, decreases the oxidation of material sample.
Description
Technical field
The present invention relates to heating furnace field, particularly relate to a kind of rapid quenching tubular heater of use for laboratory band protective atmosphere.
Background technology
Heat treatment is the important means improving material property, and tubular heater is the firing equipment that laboratory is commonly used, and material can be made to heat in the environment of inert gas shielding after vacuumizing or vacuumizing and be incubated and make material from oxidation and pollute.An Al normally used by existing tubular heater
2o
3earthenware horizontal positioned, the mid portion of pipe is positioned at the thermal treatment zone, and pipe two ends use lightweight refracrory heat insulation respectively.When being quenched by the material heated, close furnace power, being taken out to be put into from one end of pipe with the fastest speed by material is equipped with the quenching bath of hardening media, because the general pipe diameter of tube furnace is less, again high temperature by the material heated, manual one end of shifting or moving to material onto pipe from the centre of pipe is slower, and the heat insulation be placed in pipe will be first taken away before taking-up material, because pipe is longer, take out heat insulation and material sample pull-out or release are needed the longer time, therefore, material sample is lowered the temperature more in this process, affect quenching effect, in addition, from one end pull-out or the release material sample of pipe, operating personnel need the high temperature in the face of heat insulation fast and material sample, dangerous.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of rapid quenching tubular heater of use for laboratory band protective atmosphere, when material sample can be made to be quenched, can immerse the quenching bath that hardening media is housed, ensure quenching effect with the shortest time; Hardening step safety, material sample is before dip quench pond, and do not need material sample to take outside stove, material sample is dipped vertically into quenching bath, seldom exposes in atmosphere, decreases the oxidation of material sample; Insulation layer thickness is thinning, and the thermal efficiency improves; During quenching, heat insulation does not need to take out, and only need pull out a segment distance, decrease the time of operation, add the security of operation.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the rapid quenching tubular heater providing a kind of use for laboratory band protective atmosphere, comprising: stove outer covering, heating and thermal insulation mechanism and sealing mechanism, and heating and thermal insulation mechanism is located in stove outer covering; Described stove outer covering comprises display pipe, right end cap, left end flanged pipe, rectangular flange pipe, lower seal pipe and vacuum chamber housing pipe, and described vacuum chamber housing pipe is welded on display pipe, forms vacuum chamber between the inwall of vacuum chamber housing pipe and the outer wall of display pipe; Described right end cap and left end flanged pipe are welded on display pipe two ends respectively, and described lower seal pipe to be welded on the downside of display pipe and near described right end cap; Described rectangular flange pipe is welded on right end cap, and rectangular flange pipe is communicated with described lower seal pipe; Described sealing mechanism comprises the first sealing mechanism, the second sealing mechanism and the 3rd sealing mechanism, and the first sealing mechanism, the second sealing mechanism and the 3rd sealing mechanism are separately fixed on described rectangular flange pipe, left end flanged pipe and lower seal pipe; Described left end flanged pipe is used for charging, and described lower seal pipe is used for discharging.
Preferably, described heating and thermal insulation mechanism comprises alumina ceramic tube, stove silk, thermocouple, seal nipple, the first heat insulation and the second heat insulation, described alumina ceramic tube is arranged in described display pipe, forms heat-insulation layer between alumina ceramic tube outer wall and display pipe inwall; Described alumina ceramic tube one end and described left end flanged pipe are connected, breach is had below the alumina ceramic tube other end, indentation, there is communicated with rectangular flange pipe with described lower seal pipe, and the interlude of described alumina ceramic tube outer wall has semicircular spiral furnace thread trough; Described seal nipple is fixed on right end cap, and described stove silk puts in stove outer covering by seal nipple, and the stove filament winding in stove outer covering is on alumina ceramic tube and be stuck in described spiral furnace thread trough; Described thermocouple stretches in described alumina ceramic tube by seal nipple, and the thermocouple at seal nipple place and stove silk are fixed on described seal nipple by high-temperature insulation resin-cast; Described first heat insulation is arranged in alumina ceramic tube, and described second heat insulation is arranged in described rectangular flange pipe.
Preferably, described first sealing mechanism comprises the first seal cover and seal cover adapter, and described seal cover adapter comprises adpting flange and is fixed on the thread spindle on adpting flange, and adpting flange is bolted on the end face of described rectangular flange pipe; Described first seal cover inwall is provided with screw thread, and the thread spindle of the first seal cover and seal cover adapter is threaded connection; Be equipped with sealing gasket between first seal cover and seal cover adapter and between seal cover adapter and rectangular flange pipe, sealing gasket is made up of high-temperature resistant rubber.
Preferably, described second sealing mechanism comprises the second seal cover, the second metal spacer and the second sealing shroud, and the second seal cover is provided with valve; Described second sealing shroud is welded on described left end flanged pipe, described second metal spacer is enclosed within the left end flanged pipe between described second sealing shroud and left end flanged pipe, described second seal cover is fixed by screw and the second sealing shroud, be equipped with sealing ring between second seal cover and the second metal spacer and between the second metal spacer and the second sealing shroud, sealing ring is made up of high-temperature resistant rubber.
Preferably, described 3rd sealing mechanism comprises the 3rd seal cover, the 3rd metal spacer and the 3rd sealing shroud, and the 3rd seal cover is provided with valve; Described 3rd sealing shroud is welded on described lower seal pipe, described 3rd metal spacer is enclosed within the lower seal pipe between described 3rd sealing shroud and lower seal pipe, described 3rd seal cover is fixed by screw and the 3rd sealing shroud, be equipped with sealing ring between 3rd seal cover and the 3rd metal spacer and between the 3rd metal spacer and the 3rd sealing shroud, sealing ring is made up of high-temperature resistant rubber.
Preferably, described vacuum chamber housing pipe is provided with valve.
Preferably, described first heat insulation and the second heat insulation are all fixed with drag hook, described second heat insulation length is greater than the internal diameter of described lower seal pipe.
Preferably, the below of corresponding described lower seal pipe is provided with quenching bath, is provided with hardening media in quenching bath.
Preferably, described stove silk has two, is opened between two stove silks by aluminium oxide ceramics pipe insulation.
Preferably, insulation material is filled with in described heat-insulation layer.
The invention has the beneficial effects as follows: invention increases quenching effect, and ensured the security of operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the rapid quenching tubular heater of a kind of use for laboratory band of the present invention protective atmosphere;
Fig. 2 is the A-A schematic cross-section of the rapid quenching tubular heater of a kind of use for laboratory band of the present invention protective atmosphere.
In accompanying drawing, the mark of each parts is as follows: 1, display pipe; 2, right end cap; 3, left end flanged pipe; 4, rectangular flange pipe; 5, lower seal pipe; 6, vacuum chamber housing pipe; 7, alumina ceramic tube; 8, stove silk; 9, thermocouple; 10, seal nipple; 11, the first heat insulation; 12, the second heat insulation; 13, the first seal cover; 14, seal cover adapter; 15, the second seal cover; 16, the second metal spacer; 17, the second sealing shroud; 18, the 3rd seal cover; 19, the 3rd metal spacer; 20, the 3rd sealing shroud; 21, quenching bath; 61, vacuum chamber; 71, heat-insulation layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:
A rapid quenching tubular heater for use for laboratory band protective atmosphere, comprising: stove outer covering, heating and thermal insulation mechanism and sealing mechanism, and heating and thermal insulation mechanism is located in stove outer covering; Described stove outer covering comprises display pipe 1, right end cap 2, left end flanged pipe 3, rectangular flange pipe 4, lower seal pipe 5 and vacuum chamber housing pipe 6, described vacuum chamber housing pipe 6 is welded on display pipe 1, vacuum chamber 61 is formed between the inwall of vacuum chamber housing pipe 6 and the outer wall of display pipe 1, the effect of vacuum chamber can reduce the thickness of heat-insulation layer, the thermal efficiency improves, also reduce the overall volume of body of heater, described vacuum chamber housing pipe 6 is provided with valve; Described right end cap 2 and left end flanged pipe 3 are welded on display pipe 1 two ends respectively, and described lower seal pipe 5 to be welded on the downside of display pipe 1 and near described right end cap 2; Described rectangular flange pipe 4 is welded on right end cap 2, and rectangular flange pipe 4 is communicated with described lower seal pipe 5; Described sealing mechanism comprises the first sealing mechanism, the second sealing mechanism and the 3rd sealing mechanism, and the first sealing mechanism, the second sealing mechanism and the 3rd sealing mechanism are separately fixed on described rectangular flange pipe 4, left end flanged pipe 3 and lower seal pipe 5; The below of corresponding described lower seal pipe 5 is provided with quenching bath 21, is provided with hardening media in quenching bath 21; Described left end flanged pipe is used for charging, and described lower seal pipe is used for discharging.
Described heating and thermal insulation mechanism comprises alumina ceramic tube 7, stove silk 8, thermocouple 9, seal nipple 10, first heat insulation 11 and the second heat insulation 12, described alumina ceramic tube 7 is arranged in described display pipe 1, form heat-insulation layer 71 between alumina ceramic tube 7 outer wall and display pipe 1 inwall, in heat-insulation layer 71, be filled with insulation material; Described alumina ceramic tube 7 one end and described left end flanged pipe 3 are connected, breach is had below alumina ceramic tube 7 other end, indentation, there is communicated with rectangular flange pipe 4 with described lower seal pipe 5, and the interlude of described alumina ceramic tube 7 outer wall has semicircular spiral furnace thread trough; Described seal nipple 10 is fixed on right end cap 2, described stove silk 8 has two, opened by aluminium oxide ceramics pipe insulation between two stove silks 8, two stove silks 8 put in stove outer covering 1 by seal nipple 10, and the stove silk 8 in stove outer covering 1 is on alumina ceramic tube 7 and be stuck in described spiral furnace thread trough; Described thermocouple 9 stretches in described alumina ceramic tube 7 by seal nipple 10, and the thermocouple 9 at seal nipple 10 place and stove silk 8 are fixed on described seal nipple 10 by high-temperature insulation resin-cast; Described first heat insulation 11 is arranged in alumina ceramic tube 7, described second heat insulation 12 is arranged in described rectangular flange pipe 4, described first heat insulation 11 and the second heat insulation 12 are all fixed with drag hook, described second heat insulation 12 length is greater than the internal diameter of described lower seal pipe 5, can close lower seal pipe 5, rectangular flange pipe 4 and alumina ceramic tube 7 when second heat insulation 12 moves on to position shown in Fig. 1, and the second heat insulation 12 can not fall down.
Described first sealing mechanism comprises the first seal cover 13 and seal cover adapter 14, and described seal cover adapter 14 comprises adpting flange and is fixed on the thread spindle on adpting flange, and adpting flange is bolted on the end face of described rectangular flange pipe 4; Described first seal cover 13 inwall is provided with screw thread, and the first seal cover 13 is threaded connection with the thread spindle of seal cover adapter 14; Be equipped with sealing gasket between first seal cover 13 and seal cover adapter 14 and between seal cover adapter 14 and rectangular flange pipe 4, sealing gasket is made up of high-temperature resistant rubber; Described second sealing mechanism comprises the second seal cover 15, second metal spacer 16 and the second sealing shroud 17, second seal cover 15 is provided with valve; Described second sealing shroud 17 is welded on described left end flanged pipe 3, described second metal spacer 16 is enclosed within the left end flanged pipe 3 between described second sealing shroud 17 and left end flanged pipe 3, described second seal cover 15 is fixed by screw and the second sealing shroud 17, be equipped with sealing ring between second seal cover 15 and the second metal spacer 16 and between the second metal spacer 16 and the second sealing shroud 17, sealing ring is made up of high-temperature resistant rubber; Described 3rd sealing mechanism comprises the 3rd seal cover 18, the 3rd metal spacer 19 and the 3rd sealing shroud the 20, three seal cover 18 and is provided with valve; Described 3rd sealing shroud 20 is welded on described lower seal pipe 5, described 3rd metal spacer 19 is enclosed within the lower seal pipe 5 between described 3rd sealing shroud 20 and lower seal pipe 5, described 3rd seal cover 18 is fixed by screw and the 3rd sealing shroud 20, be equipped with sealing ring between 3rd seal cover 18 and the 3rd metal spacer 19 and between the 3rd metal spacer 19 and the 3rd sealing shroud 20, sealing ring is made up of high-temperature resistant rubber.
Operation principle of the present invention and process as follows:
Heating furnace structure shown in composition graphs 1, illustrates the course of work of heating furnace:
One, material sample is placed
Before heating furnace do not put into by material sample, first seal cover 13 of the first hermetically-sealed construction, second seal cover 15 of the second sealing mechanism and the 3rd seal cover 18 of the 3rd hermetically-sealed construction are in the state do not connected, first heat insulation 11 is outside stove, and the second heat insulation 12 is in position as shown in Figure 1 or is pulled to right side.When needing to quench to material sample, first material sample is put on porcelain boat, then with the push rod with scale, material sample is delivered to the middle position of heating furnace heating region, i.e. the interlude of alumina ceramic tube 7; Then the first heat insulation 11 and the second heat insulation 12 are shifted onto position as shown in Figure 1; Successively the first seal cover 13, second seal cover the 15, three seal cover 18 is connected again, make it be in sealing state when valve closing, the external inert gas source of valve flexible pipe on the second seal cover 15.
Two, material sample heating
Before to material sample heating, vacuum chamber 61 is vacuumized, to improve heat insulation effect.When needing to heat material sample, first set heating and insulation program, then start power supply, inert gas valve can be opened simultaneously, adjust gas flow to protect material sample.
Three, quench
When the heating of material sample and temperature retention time reach the requirement of setting, can loosen and remove the first seal cover 13, second seal cover 15 and the 3rd seal cover 18 fast, and then the second heat insulation 12 is pulled open fast to the right with pull bar, promote material sample and porcelain boat thereof to the right with push rod simultaneously, material sample to be hung down from lower seal pipe together with porcelain boat 5 directly immerse and be equipped with the quenching bath 21 of hardening media, reach the object of rapid quenching.
When the present invention can make material sample be quenched, can immerse with the shortest time quenching bath that hardening media is housed, ensure quenching effect; Hardening step safety, material sample is before dip quench pond, and do not need material sample to take outside stove, material sample is dipped vertically into quenching bath, seldom exposes in atmosphere, decreases the oxidation of material sample; Insulation layer thickness is thinning, and the thermal efficiency improves; During quenching, heat insulation does not need to take out, and only need pull out a segment distance, decrease the time of operation, add the security of operation.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a rapid quenching tubular heater for use for laboratory band protective atmosphere, is characterized in that, comprising: stove outer covering, heating and thermal insulation mechanism and sealing mechanism, and heating and thermal insulation mechanism is located in stove outer covering; Described stove outer covering comprises display pipe, right end cap, left end flanged pipe, rectangular flange pipe, lower seal pipe and vacuum chamber housing pipe, and described vacuum chamber housing pipe is welded on display pipe, forms vacuum chamber between the inwall of vacuum chamber housing pipe and the outer wall of display pipe; Described right end cap and left end flanged pipe are welded on display pipe two ends respectively, and described lower seal pipe to be welded on the downside of display pipe and near described right end cap; Described rectangular flange pipe is welded on right end cap, and rectangular flange pipe is communicated with described lower seal pipe; Described sealing mechanism comprises the first sealing mechanism, the second sealing mechanism and the 3rd sealing mechanism, and the first sealing mechanism, the second sealing mechanism and the 3rd sealing mechanism are separately fixed on described rectangular flange pipe, left end flanged pipe and lower seal pipe; Described left end flanged pipe is used for charging, and described lower seal pipe is used for discharging.
2. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 1, it is characterized in that: described heating and thermal insulation mechanism comprises alumina ceramic tube, stove silk, thermocouple, seal nipple, the first heat insulation and the second heat insulation, described alumina ceramic tube is arranged in described display pipe, forms heat-insulation layer between alumina ceramic tube outer wall and display pipe inwall; Described alumina ceramic tube one end and described left end flanged pipe are connected, breach is had below the alumina ceramic tube other end, indentation, there is communicated with rectangular flange pipe with described lower seal pipe, and the interlude of described alumina ceramic tube outer wall has semicircular spiral furnace thread trough; Described seal nipple is fixed on right end cap, and described stove silk puts in stove outer covering by seal nipple, and the stove filament winding in stove outer covering is on alumina ceramic tube and be stuck in described spiral furnace thread trough; Described thermocouple stretches in described alumina ceramic tube by seal nipple, and the thermocouple at seal nipple place and stove silk are fixed on described seal nipple by high-temperature insulation resin-cast; Described first heat insulation is arranged in alumina ceramic tube, and described second heat insulation is arranged in described rectangular flange pipe.
3. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 1, it is characterized in that: described first sealing mechanism comprises the first seal cover and seal cover adapter, described seal cover adapter comprises adpting flange and is fixed on the thread spindle on adpting flange, and adpting flange is bolted on the end face of described rectangular flange pipe; Described first seal cover inwall is provided with screw thread, and the thread spindle of the first seal cover and seal cover adapter is threaded connection; Be equipped with sealing gasket between first seal cover and seal cover adapter and between seal cover adapter and rectangular flange pipe, sealing gasket is made up of high-temperature resistant rubber.
4. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 1, is characterized in that: described second sealing mechanism comprises the second seal cover, the second metal spacer and the second sealing shroud, and the second seal cover is provided with valve; Described second sealing shroud is welded on described left end flanged pipe, described second metal spacer is enclosed within the left end flanged pipe between described second sealing shroud and left end flanged pipe, described second seal cover is fixed by screw and the second sealing shroud, be equipped with sealing ring between second seal cover and the second metal spacer and between the second metal spacer and the second sealing shroud, sealing ring is made up of high-temperature resistant rubber.
5. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 1, is characterized in that: described 3rd sealing mechanism comprises the 3rd seal cover, the 3rd metal spacer and the 3rd sealing shroud, and the 3rd seal cover is provided with valve; Described 3rd sealing shroud is welded on described lower seal pipe, described 3rd metal spacer is enclosed within the lower seal pipe between described 3rd sealing shroud and lower seal pipe, described 3rd seal cover is fixed by screw and the 3rd sealing shroud, be equipped with sealing ring between 3rd seal cover and the 3rd metal spacer and between the 3rd metal spacer and the 3rd sealing shroud, sealing ring is made up of high-temperature resistant rubber.
6. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 1, is characterized in that: described vacuum chamber housing pipe is provided with valve.
7. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 2, it is characterized in that: described first heat insulation and the second heat insulation are all fixed with drag hook, described second heat insulation length is greater than the internal diameter of described lower seal pipe.
8. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 1, is characterized in that: the below of corresponding described lower seal pipe is provided with quenching bath, is provided with hardening media in quenching bath.
9. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 2, be is characterized in that: described stove silk has two, is opened between two stove silks by aluminium oxide ceramics pipe insulation.
10. the rapid quenching tubular heater of a kind of use for laboratory band protective atmosphere according to claim 2, is characterized in that: be filled with insulation material in described heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750314.9A CN103673611B (en) | 2013-12-31 | 2013-12-31 | A kind of rapid quenching tubular heater of use for laboratory band protective atmosphere |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310750314.9A CN103673611B (en) | 2013-12-31 | 2013-12-31 | A kind of rapid quenching tubular heater of use for laboratory band protective atmosphere |
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| CN103673611A CN103673611A (en) | 2014-03-26 |
| CN103673611B true CN103673611B (en) | 2015-12-09 |
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Families Citing this family (1)
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| CN109439879A (en) * | 2018-11-29 | 2019-03-08 | 安徽省宁国诚信耐磨材料有限公司 | A kind of novel thermal process cleaner |
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|---|---|---|---|---|
| CN2526117Y (en) * | 2002-04-08 | 2002-12-18 | 曹玉贵 | Bimetal band saw heat treater set |
| CN201250251Y (en) * | 2008-09-17 | 2009-06-03 | 湖南顶立科技有限公司 | Vacuum degreasing sintering-quenching integrated furnace |
| CN101586225A (en) * | 2009-04-23 | 2009-11-25 | 贵州航天精工制造有限公司 | A kind of method for vacuum hardening and used vacuum hardening device |
| CN203744716U (en) * | 2013-12-31 | 2014-07-30 | 苏州市职业大学 | Quick quenching tube heating furnace for laboratory and with protective atmosphere |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10197155A (en) * | 1996-12-27 | 1998-07-31 | Shimazu Mekutemu Kk | Retort furnace |
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2013
- 2013-12-31 CN CN201310750314.9A patent/CN103673611B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526117Y (en) * | 2002-04-08 | 2002-12-18 | 曹玉贵 | Bimetal band saw heat treater set |
| CN201250251Y (en) * | 2008-09-17 | 2009-06-03 | 湖南顶立科技有限公司 | Vacuum degreasing sintering-quenching integrated furnace |
| CN101586225A (en) * | 2009-04-23 | 2009-11-25 | 贵州航天精工制造有限公司 | A kind of method for vacuum hardening and used vacuum hardening device |
| CN203744716U (en) * | 2013-12-31 | 2014-07-30 | 苏州市职业大学 | Quick quenching tube heating furnace for laboratory and with protective atmosphere |
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