CN202246092U - Total radiation type efficient electric heating furnace - Google Patents
Total radiation type efficient electric heating furnace Download PDFInfo
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- CN202246092U CN202246092U CN201120332713XU CN201120332713U CN202246092U CN 202246092 U CN202246092 U CN 202246092U CN 201120332713X U CN201120332713X U CN 201120332713XU CN 201120332713 U CN201120332713 U CN 201120332713U CN 202246092 U CN202246092 U CN 202246092U
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- cylindrical shell
- stove
- barrel body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model provides a total radiation type efficient electric heating furnace. The furnace comprises a support (1) and a barrel body (28) formed by an inner furnace barrel (10) and an outer furnace barrel (11), wherein thermal insulation materials (12) are filled between the inner furnace barrel (10) and the outer furnace barrel (11); the barrel body (28) is fixedly installed on the support (1) at the bottom of the barrel body; and a furnace lid (23) is connected on the upper part of the barrel body (28). The furnace is characterized in that resistant belt heating elements (7) are installed on the inner walls of the furnace barrel (10); bottom heating elements (2) are installed on the support (1) at the bottom of the barrel body (28); a columnar heating element (8) is installed in the center of the barrel body (28); heated dielectric pipes (5) are spirally arranged around the columnar heating element (8) and are positioned in the inner cavity of the barrel body (28) by fixing parts (4) and support rods (3); the support rods (3) are connected with the lower ends of suspenders (29) by connecting parts (14); the suspenders (29) are fixed in the furnace lid (23); an entry end (17) and an exit end (21) of the heated dielectric pipes (5) penetrate through the furnace lid (23); a protective gas inlet pipe (26) penetrates through a barrel body bottom (46) to be communicated with the inner cavity of the barrel body (28); and a protective gas outlet pipe penetrates through the furnace lid (23) to be communicated with the inner cavity of the barrel body (28). The furnace has the following beneficial effects: the temperature uniformity in the furnace is good; and the furnace pipes are convenient to manufacture, hoist and overhaul.
Description
Technical field
The utility model relates to a kind of electric heater unit, is applied to the occasion that gas needs homogeneous heating, is used for the electrical heater that reactant gases heats in especially a kind of solar power silicon polysilicon production process, the efficient electrical heater of specifically a kind of total radiation formula.
Background technology
At present; Heliotechnics has obtained widespread use, utilizes the silicon rod of one of key part must heat H2, SiCl4 and H2 gas mixture in process of production as sun power, wherein the cold hydrogenation of silicon tetrachloride with electric heater must be at high temperature, high pressure, have work under the environment of flammable explosive gas environment such as hydrogen and strong corrosive media; Very high to requirement of products; And the homogeneity of heating directly has influence on growing up of silicon rod, and existing process furnace exists single face to be heated owing to adopt single internal surface type of heating; The problem of samming weak effect; Simultaneously since existing process furnace because the covering plate structure design is unreasonable, exist heating tube to take out difficulty and bell and boiler tube can't isolating problem, so be necessary to improve.
Summary of the invention
The purpose of the utility model is irregular to the Heating temperature of conventional electric heating stove existence, complex structure, and boiler tube is changed inconvenient problem, designs the efficient electrical heater of a kind of total radiation formula.
The technical scheme of the utility model is:
The efficient electrical heater of a kind of total radiation formula comprises bearing 1 and the cylindrical shell of being made up of stove inner core 10 and stove urceolus 11 28, between stove inner core 10 and stove urceolus 11, is filled with lagging material 12; Described cylindrical shell 28 is fixedly mounted on the bearing 1; The top of cylindrical shell 28 is connected with bell 23, it is characterized in that on the inwall of described stove inner core 10 resistive band heating unit 7 being installed, and on the bottom 46 of cylindrical shell 28 bottom disc heating unit 2 is installed; Be installed in column heating unit 8 at the center of tube stove 28; Heated medium pipe 5 in the shape of a spiral the shape coil pipe be installed in column heating unit 8 and stove tube inwall resistive band heating unit 7 between, and be positioned in the cylindrical shell 28 through mounting block 4 and support 3, mounting block 4 is installed on the support 3; Support 3 is through the lower ends of web member 14 with suspension rod 29, and suspension rod 29 is fixed in the bell 23; The entrance end 17 and the exit end 21 of described heated medium pipe 5 all pass bell 23; Gas atmosphere inlet pipe 26 passes cylindrical shell bottom 46 and communicates with the inner chamber of cylindrical shell 28, and the shielding gas outlet pipe passes bell 23 and communicates with the inner chamber of cylindrical shell 28.
The upper end plug-in mounting of described suspension rod 29 is positioned at hanger seat 30; Hanger seat 30 links to each other with fixing hanger 32 through joint bolt 31; Fixedly hanger 32 is fixedly linked with the upper plate of bell 23; Described hanger seat 30, hanger 32 at hanger seat 30 and fixedly add insulation material layer 33 between the hanger 32, also add insulation material layer 33 all in the upper plate of bell 23 and the cover plate lagging material 13 between the lower plate between suspension rod 29 and hanger seat 33.
Described column heating unit 8 is a hollow structure, and its inside is filled with thermal insulation material 9, and outer wall is equipped with an electric heating element 7, on cylindrical shell bottom 46, disk an electric heating element 2 is installed.
All there is shack 24 at the outer wall top and the middle part of the bottom of described bell 23 and cylindrical shell 28, and relative two shacks 24 link to each other through bolt, on each shack 24, are equipped with stiffening web 34.
Described resistive band heating unit 7 is fixed on the inwall of cylindrical shell 28 through the heating unit mounting block 6 that passes stove inner core 10; Described stove inner core 10 is flame-retardant fibre board or refractory brick; The lagging material 12 that installs additional between stove inner core 10 and the stove urceolus 11 is the refractory fibre folded sheet, and described stove urceolus 11 is made up of flame-retardant fibre board liner plate and metal coverboard.
A plurality of thermometric joints 25 are installed on the described body of heater; This thermometric joint 25 is made up of permanent seat that is fixedly linked with stove urceolus 11 35 and sealing cover 36; Sealing cover 35 through the screw thread spinning on permanent seat 35, permanent seat 35 and sealing cover 36 combine add asbestos packing 37 between the end face.
All add sealing positioning component 37 on the entrance end 17 of described heated medium pipe 5 and the exit end 21; Described sealing positioning component comprises refractory fiber block 15, two semicircular rings sealing covers 16 and strengthening supports 41; The center of described refractory fiber block 15 is provided with the centre hole that matches with heated medium pipe entrance end 17 and exit end 21; This refractory fiber block 15 is by the frustum section 42 in the cover plate lagging material 13 that inserts bell 23 and support the cylindrical section 43 that is contained on the cover plate lagging material 13 and form, said strengthening support 41 be installed in said cylindrical section 43 around; Link to each other through joint bolt assembly 44 between described two semicircular rings sealing covers 16; Match with the entrance end 17 or exit end 21 calibers of described heated medium pipe 5 in two semicircular ring sealing cover 16 spliced centre hole apertures; Two semicircular rings sealing covers 16 all link to each other through the upper cover plate of fastening piece with bell 23, and pad is equipped with asbestos packing 45 between two semicircular rings sealing covers 16 and strengthening support 41.
The beneficial effect of the utility model:
1, the utility model makes the interior outside of boiler tube all can receive thermal-radiating influence through on body of heater center, bottom and inwall, heating unit being installed, thereby the gas in boiler tube and the pipe is heated more full and uniformly.
2, the boiler tube of the utility model adopts and to breathe out not that the sealing cover structure can realize picking and placeing separately of bell and boiler tube, and the effect through hanger simultaneously can make that again boiler tube can take out with bell in the lump, makes the making and picking and placeing of boiler tube overhaul very convenient.
3,, can realize that temperature is controlled by processing requirement automatically in the stove through adopting PLC control able to programme.Nitrogen protection, long-term stable operation under 600 ~ 1000 ℃ of worst hot cases for a long time, work-ing life was above 10000 hours.Stable performance, safe and reliable; Efficiently solve the difficult problem of reactant gases and polysilicon production process SiCl4 recycle.
4, the electric heater of the utility model includes medium heating furnace chamber, bell, furnace bottom and is inserted at least three indoor electrically heated cores of medium heating furnace: furnace bottom and center heating core in heated oven chamber's inwall (can be divided into a plurality of zones), the heated oven chamber.Spiral helicine metal coil pipe is set in the heating chamber, and the two ends of metal coil pipe are that heating medium gets into and effusive entrance and exit, coil pipe can be a row or many rows side by side, and be fixedly mounted on furnace top flange and cover, can cover with furnace top flange and in stove, propose.Several temperature tubes that are connected with the overtemperature prote circuit distribute in electrically heated coil pipe heated perimeter; All temperature tubes are inclusive in the metal cylinder of a thin-walled; Metal cylinder one end and blind flange are tightly connected; The sealing of the metal cylinder the other end, but temperature tube metal cylinder on-line replacing adopt blind flange to shut.The point for measuring temperature of its overtemperature prote can accurately feed back the state of temperature of whole electrically heated core, can avoid the damage that causes because of part electrically heated coil pipe local superheating.
5, the utility model is provided with the heat core at the center of electrically heated coil pipe, thereby reaches raising electric heating tube high-temperature behavior, safety and the purpose in work-ing life with most economical process step.
6, the heating medium temperature-stable is reliable, and temperature homogeneity is good in the burner hearth, and has good flexibility and handiness.Adopt PC, can realize moving full automatic control.
7, high-precision intelligent PID is adopted in temperature control, can control automatically and respectively distinguish Heating temperature, has directly perceived, convenient and advanced.In instrument, different heating curves can be set, the process of heating heats up according to the heating curve that configures.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the A-A sectional structure synoptic diagram of Fig. 1.
Fig. 3 is the structural representation of seal assembly of boiler tube entrance end and the exit end of the utility model.
Fig. 4 is the suspension rod mounting structure synoptic diagram of the utility model.
Wherein: Fig. 4 is a front view a), Fig. 4 b) be Fig. 4 left view a).
Fig. 5 is the composition structural representation of the furnace wall of the utility model.
Fig. 6 is the thermometric structural representation of the utility model.
Wherein Fig. 6 is a thermometric arrangement works view when having temperature tube 39 to insert a).
Fig. 6 b) is the no temperature tube thermometric structural representation when inserting.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Shown in Fig. 1-6.
The efficient electrical heater of a kind of total radiation formula comprises bearing 1 and the cylindrical shell of being made up of stove inner core 10 and stove urceolus 11 28, between stove inner core 10 and stove urceolus 11, is filled with lagging material 12; Described cylindrical shell 28 is fixedly mounted on the cylindrical shell bottom 46, and the top of cylindrical shell 28 is connected with bell 23, (is equivalent to flange arrangement through shack 24 between the two; As shown in Figure 2) link to each other; Cylindrical shell 28 can be one-piece construction, also can be the structure of being made up of plurality of sections, the section with section between also link to each other through shack 24; Two shacks that match 24 link to each other through bolt, on each shack 24, are equipped with stiffening web 34.Hygrometric element 18 and load cell 19 also can be installed in the bell 23, and load cell 19 is connected with emergency vent 20.Resistive band heating unit 7 is installed on the inwall of described stove inner core 10; Bottom heating unit 2 is installed on the bottom of cylindrical shell 28, the bearing 1, is installed in column heating unit 8 at the center of tube stove 28, column heating unit 8 is a hollow structure; Its inside adds lagging material or thermal insulation material 9; Heated medium pipe 5 in the shape of a spiral shape be arranged on column heating unit 8 around, and be positioned in the inner chamber of cylindrical shell 28 through mounting block 4, mounting block 4 is installed on the support bar 3; Fixed link 3 is through the lower ends of web member 14 with suspension rod 29, and suspension rod 29 is fixed in the bell 23; The entrance end 17 and the exit end 21 of described heated medium pipe 5 all pass bell 23; Gas atmosphere inlet pipe 26 passes bearing 1 and communicates with the inner chamber of cylindrical shell 28, and the shielding gas outlet pipe passes bell 23 and communicates with the inner chamber of cylindrical shell 28, and is as shown in Figure 1.Each heating unit all links to each other with connector assembly 27, and is as shown in Figure 2.
During practical implementation; But the upper end plug-in mounting of described suspension rod 29 is positioned at hanger seat 30; Hanger seat 30 links to each other with fixing hanger 32 through joint bolt 31, and fixedly the upper plate of hanger 32 and bell 23 is fixedly linked, and described hanger seat 30, hanger 32 are all in the upper plate of bell 23 and the cover plate lagging material 13 between the lower plate; At hanger seat 30 and fixedly add insulation material layer 33 between the hanger 32, also also add insulation material layer 33 between the wall at the jack of suspension rod 29 and hanger seat 33.As shown in Figure 4.
Described resistive band heating unit 7 is fixed on the inwall of cylindrical shell 28 through the heating unit mounting block 6 that passes stove inner core 10 during practical implementation, and mounting block 6 materials are heating resisting metal or nonmetallic ceramics etc.; Described stove inner core 10 is flame-retardant fibre board or refractory brick, and the lagging material 12 that installs additional between stove inner core 10 and the stove urceolus 11 is the refractory fibre folded sheet, and described stove urceolus 11 is made up of flame-retardant fibre board liner plate and metal coverboard, and is as shown in Figure 5.
During practical implementation; A plurality of thermometric joints 25 are installed on the described body of heater; This thermometric joint 25 is made up of permanent seat that is fixedly linked with stove urceolus 11 35 and sealing cover 36; Sealing cover 35 through the screw thread spinning on permanent seat 35, permanent seat 35 and sealing cover 36 combine add asbestos packing 37 between the end face.As shown in Figure 6.
Mounting or dismounting for the ease of boiler tube; During practical implementation; Also can on the entrance end of heated medium pipe 5 17 and exit end 21, all install sealing positioning component 37 as shown in Figure 3 additional; Described sealing positioning component comprises refractory fiber block 15, two semicircular rings sealing covers 16 and strengthening supports 41; The center of described refractory fiber block 15 is provided with the centre hole that matches with heated medium pipe entrance end 17 and exit end 21, and this refractory fiber block 15 is by the frustum section 42 in the cover plate lagging material 13 that inserts bell 23 and support the cylindrical section 43 that is contained on the cover plate lagging material 13 and form, said strengthening support 41 be installed in said cylindrical section 43 around; Link to each other through joint bolt assembly 44 between described two semicircular rings sealing covers 16; Match with the entrance end 17 or exit end 21 calibers of described heated medium pipe 5 in two semicircular ring sealing cover 16 spliced centre hole apertures; Two semicircular rings sealing covers 16 all link to each other through the upper cover plate of fastening piece with bell 23, and pad is equipped with asbestos packing 45 between two semicircular rings sealing covers 16 and strengthening support 41.
When needs overhaul boiler tube 5, can bell 23 integral body be sling, thereby boiler tube is hung out from body of heater through unclamping the shack 24 that connects bell 23 and body of heater 28, central heating tube 8 then is retained in the body of heater.
Separately boiler tube 5 is taken out if desired, can unclamp two semicircular rings sealing covers 16 earlier, take out refractory fiber block 15 (also being two half pair of assembly structures) again; Unclamp the web member 14 of suspension rod and boiler tube strut member 3, can bell be separated with boiler tube, directly hang out earlier bell 23; Hanging out boiler tube 5 again gets final product; Or bell 23 hung out with boiler tube 5, unclamp the web member 14 of suspension rod and boiler tube strut member 3 then, bell 23 and boiler tube 5 are made respectively, keep in repair, checked.
In addition, during practical implementation, it is cylindric that furnace shell uses the 4-16mm Plate Steel to be welded, and have gusset to strengthen, and whole body of heater is made in strict accordance with the processing requirement of pressurized vessel, with the stopping property of guaranteeing body of heater and enough stiffnesses.
Furnace lining all adopts quality refractory tapetum fibrosum needle punched blanket to process fully fibrous structure (Fig. 2,3,4,5), and also available quarl is guaranteed the heat-insulating property of stove and energy-conservation; Furnace lining is the folded piece splicing construction, and the inner high temperature steel riveting component that adopts is made skeleton, to guarantee that the furnace lining life-time service is indeformable and to have enough rigidity and intensity; The erosion resistibility of one deck flame-retardant fibre board or coating enhancing furnace lining, the heat-insulating property and the work-ing life of improving furnace lining are established in the surface.Energy-saving effect is remarkable, than common light cinder brick furnace lining energy-conservation about 30%.The furnace bottom brick masonary is built by laying bricks or stones and is formed by HS heavy brick, light energy saving brick, insulating brick.
Heating unit adopts the resistive band heating unit, and resistive band is pulled back special shape, increases area of dissipation, to strengthen the radiating surface of thermoelectric converter to workpiece, improves thermo-efficiency.(like Fig. 2)
The furnace wall electrical heating element distributes by upper and lower, middle part three districts.For guaranteeing the boiler tube homogeneous heating, at furnace bottom and centre portions electrical heating element is set, per two groups of concentrated the drawing of electrical heating element eduction rod; The eduction rod shell is equipped with radiator element; Guarantee that the heat that eduction rod is taken out of in the stove discharges out through radiator element, guaranteeing can be not overheated in the anti-explosion terminal box, thereby guarantees anti-hazard classification T4; Explosion-proof casing has certain distance apart from body of heater, and this part is as radiating area (like figure).
Coil pipe (being boiler tube 5) carries out bend pipe processing through the method for cold or thermal bending deformation after pyroprocessing, straight tube is processed into crooked coil shape; After coil shape processing, carry out stress removing or carry out the high tempering processing, guarantee safe operation.The coil pipe suspender adopts the heat-resistant high alloy steel plate to make, and is separately fixed at (number is fixed according to coil pipe suspension rod quantity) on the bell.For reducing heat passage between hanger and the hanger seat, thermofin has been established in heating between hanger and hanger seat, and this kind of the practical experience way through multiple devices has reduced heat passage, hot short circuit phenomenon greatly.
Bell adopts steel plate and the close weldering of shaped steel to be welded into, and the outside is welded into frame shape stiffening web with shaped steel, guarantees that bell has enough stopping propertys and stiffness.The bell thermal insulation layer adopts fully fibrous structure, and inside makes skeleton with high temperature steel and the bell shell is fixed.Fully fibrous structure is in light weight, heat-insulating property good.Bell top is provided with pipeline and imports and exports, and imports and exports good sealing property for guaranteeing bell and pipeline, the structure that seals chock has been adopted breathed out not structure (like figure).
The bottom is provided with the nitrogen inlet mouth, and top is provided with exhaust system, carries out exhaust automatically according to setting pressure in the stove.Mainly be provided with pressure unit, pressure controller, vacuum breaker, ball valve on the nitrogen pipeline; Pressure controller can show the furnace pressure situation constantly; Size and set(ting)value according to the furnace pressure value are controlled comparison stove furnace pressure automatically; Pressure unit has the standard signal output interface, through PLC the nitrogen pressure situation monitored, and corresponding interlocking.
Oxygen, hydrogen analyser carry out content control by oxygen, hydrogen probe through the control analysis appearance; Oxygen, hydrogen probe have the standard signal output interface; Through PLC oxygen, hydrogen richness situation are monitored, and corresponding interlocking, oxygen, hydrogen richness PPM value user provide.
For guaranteeing the safe handling of equipment, system has various interlock protection functional harmonies, light warning device.Warning function has overtemperature alarm, fault alarm etc., has overheated, overcurrent protection simultaneously with assurance equipment and personnel safety.When furnace temperature surpasses set(ting)value, send warning, stop heating simultaneously, prevented pyrolytic damage body of heater and heating unit.
The utility model does not relate to all identical with the prior art prior art that maybe can adopt of part to be realized.
Claims (8)
1. efficient electrical heater of total radiation formula; Comprise bearing (1) and the cylindrical shell of forming by stove inner core (10) and stove urceolus (11) (28); Between stove inner core (10) and stove urceolus (11), be filled with lagging material (12); Described cylindrical shell (28) is fixedly mounted on the bearing (1); The top of cylindrical shell (28) is connected with bell (23), it is characterized in that on the inwall of described stove inner core (10) resistive band heating unit (7) being installed, and on the bottom (46) of cylindrical shell (28) bottom disc heating unit (2) is installed; Be installed in column heating unit (8) at the center of tube stove (28); Heated medium pipe (5) in the shape of a spiral the shape coil pipe be installed in column heating unit (8) and stove tube inwall resistive band heating unit (7) between, and be positioned in the cylindrical shell (28) through mounting block (4) and support (3), mounting block (4) is installed on the support (3); Support (3) is through the lower ends of web member (14) with suspension rod (29), and suspension rod (29) is fixed in the bell (23); The entrance end (17) and the exit end (21) of described heated medium pipe (5) all pass bell (23); Gas atmosphere inlet pipe (26) passes cylindrical shell bottom (46) and communicates with the inner chamber of cylindrical shell (28), and the shielding gas outlet pipe passes bell (23) and communicates with the inner chamber of cylindrical shell (28).
2. the efficient electrical heater of total radiation formula according to claim 1; The upper end plug-in mounting that it is characterized in that described suspension rod (29) is positioned at hanger seat (30); Hanger seat (30) links to each other with fixing hanger (32) through joint bolt (31); Fixedly hanger (32) is fixedly linked with the upper plate of bell (23); Described hanger seat (30), hanger (32) all are arranged in the upper plate of bell (23) and the cover plate lagging material (13) between the lower plate, at hanger seat (30) and fixedly add insulation material layer (33) between the hanger (32), between suspension rod (29) and hanger seat (33), also add insulation material layer (33).
3. the efficient electrical heater of total radiation formula according to claim 1; It is characterized in that described column heating unit (8) is a hollow structure; Its inside is filled with thermal insulation material (9); Outer wall is equipped with an electric heating element (7), on cylindrical shell bottom (46), disk an electric heating element (2) is installed.
4. the efficient electrical heater of total radiation formula according to claim 1; It is characterized in that all there is shack (24) at the bottom of described bell (23) and the outer wall top and the middle part of cylindrical shell (28); Relative two shacks (24) link to each other through bolt, on each shack (24), are equipped with stiffening web (34).
5. the efficient electrical heater of total radiation formula according to claim 1 is characterized in that temperature element (18) and load cell (19) also are installed on the described bell (23), and load cell (19) is connected with emergency vent (20).
6. the efficient electrical heater of total radiation formula according to claim 1; It is characterized in that described resistive band heating unit (7) is fixed on the inwall of cylindrical shell (28) through the heating unit mounting block (6) that passes stove inner core (10); Described stove inner core (10) is flame-retardant fibre board or refractory brick; The lagging material (12) that installs additional between stove inner core (10) and the stove urceolus (11) is the refractory fibre folded sheet, and described stove urceolus (11) is made up of flame-retardant fibre board liner plate and metal coverboard.
7. the efficient electrical heater of total radiation formula according to claim 1; It is characterized in that being equipped with on the described body of heater a plurality of thermometric joints (25); This thermometric joint (25) is made up of the permanent seat (35) and the sealing cover (36) that are fixedly linked with stove urceolus (11); Sealing cover (35) through the screw thread spinning on permanent seat (35), permanent seat (35) and sealing cover (36) combine add asbestos packing (37) between the end face.
8. the efficient electrical heater of total radiation formula according to claim 1; It is characterized in that all adding sealing positioning component (37) on entrance end (17) and the exit end (21) of described heated medium pipe (5); Described sealing positioning component comprises refractory fiber block (15), two semicircular rings sealing covers (16) and strengthening support (41); The center of described refractory fiber block (15) is provided with the centre hole that matches with heated medium pipe entrance end (17) and exit end (21); This refractory fiber block (15) is by the frustum section (42) in the cover plate lagging material (13) that inserts bell (23) and support the cylindrical section (43) that is contained on the cover plate lagging material (13) and form, said strengthening support (41) be installed in said cylindrical section (43) around; Link to each other through joint bolt assembly (44) between described two semicircular rings sealing covers (16); Match with the entrance end (17) or exit end (21) caliber of described heated medium pipe (5) in the spliced centre hole of two semicircular ring sealing covers (16) aperture; Two semicircular rings sealing covers (16) all link to each other through the upper cover plate of fastening piece with bell (23), and pad is equipped with asbestos packing (45) between two semicircular rings sealing covers (16) and strengthening support (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120332713XU CN202246092U (en) | 2011-09-06 | 2011-09-06 | Total radiation type efficient electric heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120332713XU CN202246092U (en) | 2011-09-06 | 2011-09-06 | Total radiation type efficient electric heating furnace |
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| Publication Number | Publication Date |
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| CN202246092U true CN202246092U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120332713XU Expired - Lifetime CN202246092U (en) | 2011-09-06 | 2011-09-06 | Total radiation type efficient electric heating furnace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432015A (en) * | 2011-09-06 | 2012-05-02 | 江苏中圣高科技产业有限公司 | Uniform temperature type efficient electric heating furnace |
| CN103062896A (en) * | 2013-02-08 | 2013-04-24 | 上海森松新能源设备有限公司 | Electric heating device |
| CN103743247A (en) * | 2014-01-20 | 2014-04-23 | 华能无锡电热器材有限公司 | Radiation heating furnace support device |
| CN104694715A (en) * | 2015-01-19 | 2015-06-10 | 苏州新长光热能科技有限公司 | Electric heating device of non-ferrous metal heat treatment electric furnace |
| CN108356520A (en) * | 2018-04-09 | 2018-08-03 | 宁波连通设备集团有限公司 | Atmospheric pressure kiln manufacturing process and the atmospheric pressure kiln manufactured with the technique |
| CN109487053A (en) * | 2019-01-10 | 2019-03-19 | 韩天臣 | Glowing furnace for daggers and swords |
-
2011
- 2011-09-06 CN CN201120332713XU patent/CN202246092U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432015A (en) * | 2011-09-06 | 2012-05-02 | 江苏中圣高科技产业有限公司 | Uniform temperature type efficient electric heating furnace |
| CN103062896A (en) * | 2013-02-08 | 2013-04-24 | 上海森松新能源设备有限公司 | Electric heating device |
| CN103743247A (en) * | 2014-01-20 | 2014-04-23 | 华能无锡电热器材有限公司 | Radiation heating furnace support device |
| CN104694715A (en) * | 2015-01-19 | 2015-06-10 | 苏州新长光热能科技有限公司 | Electric heating device of non-ferrous metal heat treatment electric furnace |
| CN108356520A (en) * | 2018-04-09 | 2018-08-03 | 宁波连通设备集团有限公司 | Atmospheric pressure kiln manufacturing process and the atmospheric pressure kiln manufactured with the technique |
| CN108356520B (en) * | 2018-04-09 | 2020-04-07 | 宁波连通设备集团有限公司 | Manufacturing process of normal pressure heating furnace and normal pressure heating furnace manufactured by same |
| CN109487053A (en) * | 2019-01-10 | 2019-03-19 | 韩天臣 | Glowing furnace for daggers and swords |
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