CN201954945U - Hot air circulating device for heat treatment furnace - Google Patents
Hot air circulating device for heat treatment furnace Download PDFInfo
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- CN201954945U CN201954945U CN2011200582589U CN201120058258U CN201954945U CN 201954945 U CN201954945 U CN 201954945U CN 2011200582589 U CN2011200582589 U CN 2011200582589U CN 201120058258 U CN201120058258 U CN 201120058258U CN 201954945 U CN201954945 U CN 201954945U
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Abstract
The utility model relates to a hot air circulating device for a heat treatment furnace, which mainly comprises a spiral chute, a heater, a middle tube and a circulating device, wherein the spiral chute is provided with a platform board; an inner tube with a heating space inside is connected above the platform board and a spiral sliding rail is fixedly arranged in the inner tube; the heater is arranged in the heating space of the inner tube for positioning; the middle tube is sleeved outside the spiral chute; the circulating device is provided with a driving device outside the middle tube; a convection unit is arranged in the middle tube in a penetrating way from the driving device; and the convection unit extends into the inner tube from the inner part of the middle tube. The hot air circulating device leads the hot air in a heat treatment furnace hearth to form a spiral vortex circulating hot air, the temperature of various blocks in the furnace hearth is uniform and stable; and machining workpieces are uniformly heated in the furnace hearth.
Description
Technical field
The relevant a kind of heat-treatment furnace that is used for toasting continuously different operations such as various small articles dehumidify, drying, setting, tempering processing of the utility model, be meant a kind of heated air circulation device especially, be applicable to the accurate hardware processing industry and the electronics industry of producing automatically in batches in the spiral eddy current of the inner formation of heat-treatment furnace.
Background technology
For the material structure that makes the metal object reaches predetermined performance (as intensity, hardness, wearability or the like), must finish by the heat treatment means usually.The heat-treatment furnace design of common metal object heat treatment process, mainly be in the inner installing of a hollow body of heater one combustor, use and utilize combustor to import the fuel ignition burning, the high temperature that fuel combustion is produced, to inserting the predetermined temperature of metal object heating in the body of heater, afterwards, make the metal object shift out cooling, change its performance to change its material structure from body of heater inside.
See also shown in Figure 1, known spiral heat-treatment furnace is with vibration mode the part product that needs heating to be moved at spiral chute 40 enterprising line displacements, it uses three angle push rods 41 to cooperate push rod fixed block 42 to do the guiding of annular, its shock platforms 43 can be moved on an annular angle, dull and stereotyped pull bar 44 in the middle of 43 one of use are positioned in shock platforms is gone up, following push-and-pull shock platforms 43, make it produce the propulsive force of vibrations, converted products can be moved along spiral chute 40 to be fallen, yet known spiral heat-treatment furnace is only installed intensification and the cooling that one group of heating tube 45 is heat-treated processing at the stove center, in heat flow automatically, also can't ensure that the thermal environment in the stove can be uniform and stable, industrial circle in the world requires product stability and requires under the situation about improving constantly of precision now, old-fashioned spiral heat-treatment furnace exists the interior uneven temperature of stove seriously to lack, and then causes the reduction and the bad deficient phenomena of precision of product stability.
Summary of the invention
Main purpose of the present utility model, aim to provide a kind of heat-treatment furnace heated air circulation device, make heat treatment burner hearth internal heat wind form a spiral eddy current circulating air, allow the temperature of inner each block of burner hearth can keep uniform and stable, allow processing parts in the inner thermally equivalent of burner hearth.
For reaching described purpose, the utility model heated air circulation device comprises: a spiral chute is provided with a landing slab, and connects the inner core that an inner formation heating space is set in above-mentioned landing slab top, and above-mentioned inner core inside sets firmly a spiral slide rail; One heater is arranged at the heating space of above-mentioned inner core inside; Tube is socketed on above-mentioned spiral chute outside in one; And an EGR, tube outer setting one drive unit in above-mentioned, and wear a convection current unit to middle tube inside by above-mentioned drive unit, above-mentioned convection unit penetrates above-mentioned inner core inside by inner extension of middle tube in addition.
Wherein, above-mentioned drive unit is provided with a CD-ROM drive motor, and in above-mentioned CD-ROM drive motor arranged outside one load bearing seat, above-mentioned CD-ROM drive motor is provided with a rotating shaft, and connect by above-mentioned rotating shaft and to establish a shaft coupling, in addition with above-mentioned shaft coupling connect one with the rotating shaft of the mutual winding of above-mentioned convection unit.
In a preferred embodiment, above-mentioned convection unit is provided with an agitation fan that penetrates above-mentioned inner core inside, and side joint is established a guide duct that is positioned above-mentioned spiral slide rail central authorities outside above-mentioned agitation fan, above-mentioned guide duct is offered at least one air intake vent and at least one air outlet, makes above-mentioned inner core inside form a hot blast flow circuit alone.
Above-mentioned guide duct is provided with a plurality of air intake vents in top week side, and offer an air outlet in bottom center, and above-mentioned agitation fan is between above-mentioned air intake vent and air outlet, agitation fan is derived air-flow by above-mentioned air outlet after, allow air-flow form a circulation eddy current hot blast according to the convection current of spiral chute structure.
In another preferred embodiment, above-mentioned convection unit is provided with one and penetrates the inner air blast of above-mentioned middle tube, above-mentioned air blast one side is provided with one and blows out the air-out guide plate of air-guiding to middle tube inner space, extends an inlet air conduit that penetrates above-mentioned inner core internal communication in addition in the bottom.Above-mentioned again inner core lateral surface is provided with a plurality of spaced ventilating openings, makes above-mentioned middle tube and the circulation of inner common formation one hot air convection.In addition, above-mentioned air-out guide plate be made as one with above-mentioned in the be oriented in a tangential direction curved guide plate of convection current of tubular.
Above-mentioned again spiral slide rail inside further is provided with a sleeve, above-mentioned sleeve and landing slab connect, and above-mentioned landing slab and sleeve, inner core are to lock mutually with the L shaped brace of majority, make and form a spacing distance between above-mentioned sleeve, inner core and the landing slab, the top of urceolus inside, bottom, all sides, the middle inner all sides of tube and spacing distance place further are provided with an insulation construction again.
Be by above stated specification advantage of the present utility model as can be known: the reciprocation that sees through spiral chute, middle tube and EGR, make heat treatment burner hearth internal heat wind form a spiral eddy current circulating air, allow the temperature of inner each block of burner hearth can keep uniform and stable, allow processing parts in the inner thermally equivalent of burner hearth.
Description of drawings
Fig. 1 is the cross-section structure of known spiral heat-treatment furnace;
Fig. 2 is the stereogram of the utility model spiral heat-treatment furnace one preferred embodiment;
Fig. 3 is the sectional schematic diagram of the 2nd figure;
Fig. 4 is the assembly exploded view of the utility model hot air circulating system first preferred embodiment;
Fig. 5 is the stereogram of the utility model first preferred embodiment EGR;
Fig. 6 is the exploded view of the 5th figure EGR;
Fig. 7 is the circulation schematic diagram of the utility model hot air circulating system first preferred embodiment;
Fig. 8 is the stereogram of the utility model hot air circulating system second preferred embodiment;
Fig. 9 is the cross-section cutaway view of the utility model the 8th figure;
Figure 10 is the cross-section cutaway view of the utility model second preferred embodiment hot air circulating system;
Figure 11 is the assembly exploded view of the second preferred embodiment hot air circulating system;
Figure 12 is the partial perspective view of the utility model second preferred embodiment EGR;
Figure 13 is the exploded view of the utility model second preferred embodiment EGR;
Figure 14 is the circulation schematic diagram of the utility model hot air circulating system second preferred embodiment.
[primary clustering symbol description]
10,10a------fixed case 112,112a------second perforate 21,21a------EGR
101,101a------operation and control interface 12,12a------pan feeding guide groove 210,210a------drive unit
11------urceolus 121,121a------smoke exhaust pipe 211,211a------convection unit
Tube 13,13a------discharging guide groove 212,212a------CD-ROM drive motor among the 11a------
111, tube 213,213a------load bearing seat among the 111a------first perforate 20-----
214,214a------rotating shaft 22,22a------ inner core 29,29a------driver element
215,215a------shaft coupling 220------ventilating opening 30------insulation construction
216------ air blast 23,23a------spiral slide rail 40------spiral chute
216a------agitation fan 24------sleeve 41------angle push rod
217------air- out guide plate 25,25a------heater 42------push rod fixed block
217a------ guide duct 26,26a------central rotating shaft 43------shock platforms
218------inlet air guide plate 27, the dull and stereotyped pull bar of 27a------landing slab 44------
218a------air intake vent 271,271a------L shape brace 45------heater
219a------ air outlet 28,28a------differential gear
The specific embodiment
For ease of further structure of the present utility model, use and feature thereof being had clear and definite full and accurate understanding of darker one deck and understanding, now enumerate preferred embodiment, conjunction with figs. is described in detail as follows:
At first, see also first preferred embodiment shown in Figure 2, differential type spiral heat-treatment furnace outside mainly is by a fixed case 10, one urceolus 11, an one pan feeding guide groove 12 and a discharging guide groove 13 constitute, wherein, above-mentioned urceolus 11 is provided with one first perforate 111 in top side location one side and installs above-mentioned pan feeding guide groove 12, and be provided with one second perforate 112 in the bottom position of opposite side and install above-mentioned discharging guide groove 13, above-mentioned pan feeding guide groove 12 tops have integrated smoke exhaust pipe 121 in addition, said fixing case 10 then is the bottom surface that is assembled in above-mentioned urceolus 11, and cooperates a control panel to form an operating and controlling interface 101 in a side.
See also shown in Figure 3ly, the internal structure of differential type spiral heat-treatment furnace comprises: tube 20, one EGR 21, an inner core 22, a spiral slide rail 23, a sleeve 24, a heater 25, a central rotating shaft 26, a landing slab 27, a differential gear 28 and a driver element 29 in one; Wherein, above-mentioned inner core 22, spiral slide rail 23, sleeve 24, landing slab 27, central rotating shaft 26, differential gear 28, the driver element 29 common part transmission systems that constitute a differential type.
The utility model mainly is the central interior that middle tube 20 is positioned at above-mentioned urceolus 11, and sets firmly above-mentioned landing slab 27 in inner bottom part, and above-mentioned again inner core 22 is arranged at landing slab 27 tops of above-mentioned middle tube 20 inside.Wherein, tube 20 and inner core 22 are provided with a corresponding perforate in first perforate 111 of above-mentioned urceolus 11 in above-mentioned, and tube 20 in above-mentioned, landing slab 27 is provided with another corresponding perforate in above-mentioned urceolus 11 ground, second perforate 112, makes that above-mentioned pan feeding guide groove 12 and discharging guide groove 13 are connect to establish the inner space that is communicated in above-mentioned inner core 22.
Moreover, above-mentioned outer, in, inner core 11,20,22 center of top are provided with and offer an open-work, and that above-mentioned EGR 21 is located at the open-work of above-mentioned urceolus 11 is outside and extend inwardly to the inner space of above-mentioned inner core 22, and provides the convection current wind regime to make the heat-treatment furnace internal temperature constant temperature that circulated.Moreover the middle position at above-mentioned middle tube 20 bottoms, landing slab 27 and fixed case 10 tops offers a perforation.
See also shown in Figure 4, the distinguished and admirable circulatory system of the utility model thermal source is made of tube 20, inner core 22, heater 25, EGR 21, spiral slide rail 23 and landing slab 27 in above-mentioned, wherein, above-mentioned inner core 22, spiral slide rail 23, landing slab 27 common formation one spiral chute structures.
In diagram first preferred embodiment, the spiral chute of above-mentioned hot air circulating system mainly is to connect an inner inner core 22 that forms heating space is set above landing slab 27, and set firmly a spiral slide rail 23 in inner core 22 inside, and spiral slide rail 23 inside further are provided with a sleeve 24.
Above-mentioned heater 25 then is arranged at sleeve 24 inner spaces of inner core 22 heating spaces, is socketed on above-mentioned spiral chute outside by tube 20 in above-mentioned in addition; Last above-mentioned EGR 21 is tube 20 outer setting one drive unit 210 in above-mentioned, and wears a convection current unit 211 by above-mentioned drive unit 210 to middle tube 20 inside, and above-mentioned convection unit 211 penetrates above-mentioned inner core 22 inside by middle tube 20 inner extensions in addition.
Characteristics of the present utility model are to see through the reciprocation of spiral chute, middle tube 20 and EGR 21, make in the heat-treatment furnace hot blast between tube 20 and the inner core 22 form a spiral eddy current circulating air, allow the temperature of inner each block of burner hearth can keep uniform and stable, allow processing parts in the inner thermally equivalent of burner hearth.
See also Fig. 5 and shown in Figure 6, in a possible embodiments, above-mentioned drive unit 210 is provided with a CD-ROM drive motor 212, and in above-mentioned CD-ROM drive motor 212 arranged outside one load bearing seat 213, above-mentioned CD-ROM drive motor 212 is provided with a rotating shaft 214, and connect by above-mentioned rotating shaft 214 and to establish a shaft coupling 215, in addition with above-mentioned shaft coupling 215 connect one with the rotating shaft of above-mentioned convection unit 211 mutual windings.
In diagram one preferred embodiment, 211 of above-mentioned convection unit be provided with one penetrate above-mentioned in the tube 20 inside air blast 216, above-mentioned air blast 216 1 sides are provided with one and blow out the air-out guide plate 217 of air-guiding to middle tube 20 inner spaces, extend an inlet air conduit 218 that penetrates above-mentioned inner core 22 internal communication in addition in the bottom.
See also shown in Figure 3ly, above-mentioned again inner core 22 lateral surfaces are provided with a plurality of spaced ventilating openings 220, make above-mentioned in tube 20 and the inner common hot air convection circulation that forms.In addition, above-mentioned air-out guide plate 217 be made as one with above-mentioned in tube 20 form the curved guide plate of tangential direction convection current.
In addition, above-mentioned landing slab 27 is with the L shaped brace 271 of majority (Fig. 4) locking mutually with sleeve 24, inner core 22, makes to form a spacing distance between above-mentioned sleeve 24, inner core 22 and the landing slab 27, allows spacing distance that one insulation construction 30 can further be set.In diagram one preferred embodiment, the top of above-mentioned urceolus 11 inside, bottom, all sides, middle tube 20 inner all sides are provided with above-mentioned insulation construction 30 and keep the burner hearth internal temperature.
See also shown in Figure 7, this hot air circulating system is CD-ROM drive motor 212 belt driven blowers 216 rotations by drive unit 210, air-flow is discharged to the side of middle tube 20 inner spaces by air-out guide plate 217, to form a tangent line spiral air flow, and this spiral air flow enters inner core 22 inside by the air vent 220 of inner core 22 spaced surfaces arrangement and the open-work of inner core 22 bottoms, the helicoidal structure that similarly utilizes spiral slide rail 23 is taken advantage of a situation upwards by air-flow, and transmission forms a spiral air flow, repeat to allow air blast 216 come the circulative convection running after entering by inlet air conduit 218 at last, so can allow the temperature of inner each block of burner hearth can keep uniform and stable, allow processing parts in the inner thermally equivalent of burner hearth.
See also second preferred embodiment shown in Figure 8, differential type spiral heat-treatment furnace outside mainly is by a fixed case 10a, tube 11a in one, an one pan feeding guide groove 12a and a discharging guide groove 13a constitute, wherein, tube 11a is provided with one first perforate 111a in top side location one side and installs above-mentioned pan feeding guide groove 12a in above-mentioned, and be provided with one second perforate 112a in the bottom position of opposite side and install above-mentioned discharging guide groove 13a, above-mentioned pan feeding guide groove 12a top has integrated smoke exhaust pipe 121a in addition, said fixing case 10a then is the bottom surface that is assembled in above-mentioned middle tube 11a, and cooperates a control panel to form an operating and controlling interface 101a in a side.
See also shown in Figure 9, in second preferred embodiment, the internal structure of differential type spiral heat-treatment furnace comprises: an EGR 21a, one inner core 22a, one spiral slide rail 23a, one heater 25a, one central rotating shaft 26a, one landing slab 27a, an one differential gear 28a and a driver element 29a, but it mainly is by tube 10a in above-mentioned, EGR 21a, inner core 22a, spiral slide rail 23a, heater 25a and landing slab 27a constitute a hot air circulating system, and with above-mentioned inner core 22a, spiral slide rail 23a, landing slab 27a constitutes a spiral chute structure jointly.
Be not difficult to find that the main difference of second preferred embodiment and first preferred embodiment is: second preferred embodiment there is no urceolus 11 structures of first preferred embodiment, and EGR 21a is also different with first preferred embodiment by the icon structure.
See also Figure 10 and shown in Figure 11, the spiral chute of above-mentioned hot air circulating system is to connect an inner inner core 22a who forms heating space is set above landing slab 27a equally, and sets firmly a spiral slide rail 23a in inner core 22a inside; Above-mentioned heater 25a then is arranged at the heating space inside of above-mentioned inner core 22a, is socketed on above-mentioned spiral chute outside by tube 10a in above-mentioned in addition; Last above-mentioned EGR 21a is tube 10a outer setting one drive unit 210a in above-mentioned, and wearing a convection current unit 211a to middle tube 10a inside by above-mentioned drive unit 210a, above-mentioned convection unit 211a penetrates above-mentioned inner core 22a inside by inner extension of middle tube 10a in addition.
Please join Figure 12 and shown in Figure 13, partly identical about CD-ROM drive motor 212a, load bearing seat 213a, rotating shaft 214a, the shaft coupling 215a of drive unit 210a in this second preferred embodiment with first preferred embodiment, do not given unnecessary details at this.
And above-mentioned convection unit 211a is provided with an agitation fan 216a who penetrates above-mentioned inner core 22a inside, and side joint is established a guide duct 217a who is positioned above-mentioned spiral slide rail 23a central authorities outside above-mentioned agitation fan 216a, above-mentioned guide duct 217a offers at least one air intake vent 218a and at least one air outlet 219a, makes above-mentioned inner core 22a inside form a hot blast flow circuit system alone.
Above-mentioned again guide duct 219a is provided with a plurality of air intake vent 218a in top week side, and offer an air outlet 219a in bottom center, and above-mentioned agitation fan 216a is between above-mentioned air intake vent 218a and air outlet 219a, agitation fan 216a is derived air-flow by above-mentioned air outlet 219a after, allow air-flow form a circulation eddy current hot blast according to the convection current of spiral chute structure.
The characteristics of this embodiment are: the reciprocation that sees through spiral chute and EGR 21a, make the inner hot blast of heat-treatment furnace inner core 22a form a spiral eddy current circulating air, allow the temperature of inner each block of burner hearth can keep uniform and stable, allow processing parts in the inner thermally equivalent of burner hearth.
See also shown in Figure 14, this hot air circulating system is the CD-ROM drive motor 212a drive agitation fan 216a rotation by drive unit 210a, the air-flow of guide duct 217a inside will be discharged downwards by air outlet 219a, see through the helicoidal structure of spiral slide rail 23a and inner core 22a coating fully with spiral slide rail 23a, transmission forms a spiral air flow to allow air-flow take advantage of a situation upwards, when air-flow is to spiral slide rail 23a top at last, most air intake vent 218a by guide duct 217a top enter, and then operate by the convection current of agitation fan 216a repetitive cycling again, so can allow the temperature of inner each block of burner hearth can keep uniform and stable, allow processing parts in the inner thermally equivalent of burner hearth.
The heat-treatment furnace of aforementioned first and second preferred embodiment mainly be with one differential be that heat-treatment furnace describes, but it is not in a limitative way the kind of heat-treatment furnace, that is the distinguished and admirable EGR of the utility model thermal source also can be installed in the heat-treatment furnace of vibration-type or other type of drive.
In sum, the utility model forms a spiral eddy current circulating air in heat treatment burner hearth internal heat wind, allow the temperature of inner each block of burner hearth can keep uniform and stable, allow processing parts in the inner thermally equivalent of burner hearth, use the industrial circle that meets now in the world and require product stability and require the gesture of driving that precision improves constantly.
Above illustrated embodiment only is not in a limitative way with the utility model for convenience of description; not from the utility model spirit category; be familiar with industry technical staff various simple and easy distortion and the modification that can do, all must include in the scope of the utility model patent protection.
Claims (10)
1. heat-treatment furnace heated air circulation device is characterized in that: comprise:
One spiral chute is provided with a landing slab, and connects the inner core that an inner formation heating space is set in above-mentioned landing slab top, sets firmly a spiral slide rail by above-mentioned inner core inside;
One heater is arranged at the heating space of above-mentioned inner core inside;
Tube is socketed on above-mentioned spiral chute outside in one; And
One EGR, tube outer setting one drive unit in above-mentioned, and wear a convection current unit to middle tube inside by above-mentioned drive unit, above-mentioned convection unit penetrates above-mentioned inner core inside by inner extension of middle tube in addition.
2. heat-treatment furnace heated air circulation device according to claim 1, it is characterized in that: described convection unit is provided with an agitation fan that penetrates above-mentioned inner core inside, and side joint is established a guide duct that is positioned above-mentioned spiral slide rail central authorities outside above-mentioned agitation fan, above-mentioned guide duct is offered at least one air intake vent and at least one air outlet, makes above-mentioned inner core inside form a hot blast flow circuit alone.
3. heat-treatment furnace heated air circulation device according to claim 2 is characterized in that: described guide duct is provided with a plurality of air intake vents in top week side, and offers an air outlet in bottom center.
4. heat-treatment furnace heated air circulation device according to claim 1, it is characterized in that: described convection unit is provided with one and penetrates the inner air blast of above-mentioned middle tube, above-mentioned air blast one side is provided with one and blows out the air-out guide plate of air-guiding to middle tube inner space, extends an inlet air conduit that penetrates above-mentioned inner core internal communication in addition in the bottom.
5. heat-treatment furnace heated air circulation device according to claim 4 is characterized in that: described inner core lateral surface is provided with a plurality of spaced ventilating openings, makes above-mentioned middle tube and the circulation of inner common formation one hot air convection.
6. heat-treatment furnace heated air circulation device according to claim 4 is characterized in that: described air-out guide plate be made as one with above-mentioned in the be oriented in a tangential direction curved guide plate of convection current of tubular.
7. heat-treatment furnace heated air circulation device according to claim 1, it is characterized in that: described drive unit is provided with a CD-ROM drive motor, and in above-mentioned CD-ROM drive motor arranged outside one load bearing seat, above-mentioned CD-ROM drive motor is provided with a rotating shaft, and connect by above-mentioned rotating shaft and to establish a shaft coupling, in addition with above-mentioned shaft coupling connect one with the rotating shaft of the mutual winding of above-mentioned convection unit.
8. heat-treatment furnace heated air circulation device according to claim 1 is characterized in that: described spiral slide rail inside further is provided with a sleeve, and above-mentioned sleeve and landing slab connect.
9. heat-treatment furnace heated air circulation device according to claim 8 is characterized in that: described landing slab and sleeve, inner core are to lock mutually with the L shaped brace of majority, make and form a spacing distance between above-mentioned sleeve, inner core and the landing slab.
10. heat-treatment furnace heated air circulation device according to claim 9 is characterized in that: inner all sides of tube and spacing distance position further are provided with an insulation construction in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200582589U CN201954945U (en) | 2011-03-08 | 2011-03-08 | Hot air circulating device for heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200582589U CN201954945U (en) | 2011-03-08 | 2011-03-08 | Hot air circulating device for heat treatment furnace |
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| Publication Number | Publication Date |
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| CN201954945U true CN201954945U (en) | 2011-08-31 |
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ID=44499054
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200582589U Expired - Lifetime CN201954945U (en) | 2011-03-08 | 2011-03-08 | Hot air circulating device for heat treatment furnace |
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| CN (1) | CN201954945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184259A (en) * | 2013-05-24 | 2014-12-03 | 张亚青 | Convection fan assembly of strong convection heat insulation air-cooled |
| CN105840670A (en) * | 2016-05-31 | 2016-08-10 | 盐城丰东特种炉业有限公司 | Air cooling device |
| RU211561U1 (en) * | 2021-04-29 | 2022-06-14 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | SPIRAL BOTTOM FURNACE |
-
2011
- 2011-03-08 CN CN2011200582589U patent/CN201954945U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184259A (en) * | 2013-05-24 | 2014-12-03 | 张亚青 | Convection fan assembly of strong convection heat insulation air-cooled |
| CN104184259B (en) * | 2013-05-24 | 2016-12-28 | 张亚青 | The heat insulation air-cooled convection flow fan assembly of strong convection |
| CN105840670A (en) * | 2016-05-31 | 2016-08-10 | 盐城丰东特种炉业有限公司 | Air cooling device |
| RU211561U1 (en) * | 2021-04-29 | 2022-06-14 | Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" | SPIRAL BOTTOM FURNACE |
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Granted publication date: 20110831 |