CN202350534U - Heating element and testing smelting furnace adopting same - Google Patents
Heating element and testing smelting furnace adopting same Download PDFInfo
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- CN202350534U CN202350534U CN 201120431364 CN201120431364U CN202350534U CN 202350534 U CN202350534 U CN 202350534U CN 201120431364 CN201120431364 CN 201120431364 CN 201120431364 U CN201120431364 U CN 201120431364U CN 202350534 U CN202350534 U CN 202350534U
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- heating element
- element heater
- heater
- cylindrical shape
- smelting furnace
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Abstract
The utility model relates to a heating element and a testing smelting furnace adopting the same. The heating element (1) comprises a hot end and a cold end, wherein the hot end is a cylindrical heating body (2), and the cold end is positioned at the lower part of the hot end and is connected into a whole with the hot end; more than two spiral grooves which are not communicated with one another are formed upwards on the cylindrical heating body (2), starting from the upper part of the cold end (6); the spiral grooves penetrate through the peripheral wall of the cylindrical heating body (2) radially, and the tail ends of the more than two spiral grooves are away from a cylinder tail end part (5) by certain distance; and a furnace body (A) of the testing smelting furnace is internally provided with the heating element (1), the furnace body (A) also comprises an inner lining layer (11), and the inner lining layer (11) is arranged in the heating element (1). The heating element and the testing smelting furnace adopting the same provided by the utility model can meet high temperature service, the space design of a furnace chamber is reasonable, and the generated thermal field is uniform.
Description
Technical field
The utility model relates to heating element heater and adopts the test smelting furnace of this heating element heater.
Background technology
Resistance furnace is that the laboratory is used for material melting, sintering and heat-treating apparatus.Common kind has well formula, lift, box and tubular type, and its heating element heater is selected resistance wire, Elema or Si-Mo rod usually for use.Usually annealing furnace, Muffle furnace etc. all adopt the resistance wire heating, and the serviceability temperature of stove is lower like this, generally below 1000 ℃; Small-sized well formula smelting furnace and lift resistance furnace typically use nonmetal silicon-carbon, silicon molybdenum materials matter as calandria; Be made into straight rod, the straight rod of multiple hot arc, types such as U-shaped is excellent, W shape excellent, list pair threaded bar, flute profile rod, rifle shape rod, a shape rod by function; Though can temperature be risen to more than 1350 ℃, because the difference of each heating element heater individual design causes degree of aging to differ; Make non-uniform temperature in the stove; Cause furnace cavity bigger in addition like this, heat energy loss is high, and the floor space of equipment is relatively large.For example disclosing a kind of bell-jar chassis resistance furnace and CN200910042272.7 among the CN95221534.9, to disclose a kind of combined multifunctional resistance furnace be exactly like this.
Especially in the disclosed combined multifunctional resistance furnace of CN200910042272.7; Adopted a plurality of U-shaped Si-Mo rod heating element heaters along the equally distributed in the form of a ring structure of inboard wall of burner hearth; When a plurality of Si-Mo rod performances, shape etc. there are differences, cause the uneven problem of all directions temperature in burner hearth easily, and the installation of each Si-Mo rod is also very inconvenient; Shared space is also bigger, causes the floor space of equipment bigger.
The utility model content
The purpose of the utility model is, overcomes the deficiency of prior art, provide a kind of and can satisfy high temperature and use, but spatial design more rationally, the temperature field that makes generation uniform heating element more.A kind of volume that effectively reduces the test smelting furnace is provided simultaneously, makes the test smelting furnace that furnace cavity structure is more reasonable and furnace chamber temperature is more evenly distributed.
For realizing above-mentioned purpose, the technical scheme of the utility model is:
A kind of heating element heater, this heating element heater comprise hot junction and cold junction two parts, and cold junction and hot junction are connected as a single entity; The hot junction is the cylindrical shape calandria; Cold junction is positioned at the bottom in hot junction; On this cylindrical shape calandria; With cold junction top is that starting point upwards is formed with disconnected helicla flute more than two, and this helicla flute is along the perisporium that radially connects the cylindrical shape calandria of cylindrical shape calandria, and these two above helicla flute upper ends and cylindrical shape calandria upper end are separated by a distance.
Through on the cylinder of hot junction, forming helicla flute, thereby heating element heater is formed hollow ribbon structure, be about to this heating element heater and form many helical cut structure.Plural spiral groove end and cylinder ends are separated by a distance; Be convenient to the connection wiring of heating element heater and form current path; When the heating element heater with this helicoidal structure is applied in the heating container; In the time of for example in the heating furnace,, use less power just can reach the identical interior temperature of stove compared to structures such as resistance wire, straight rods.And; Through this 360 ° closely around ground, the heated material that is positioned over hollow interior is heated with all angles ground; Compared to the situation of a plurality of U-shaped heating element heaters along the setting of stove inwall; Because the calandria in the unit are is more, thereby the efficiency of heating surface is higher, spatial design is more reasonable, make the temperature field of generation more even.In addition, the structure ring through adopting such annular can increase the magnitude of current of unit are around heating object, strengthens the ability that the opposing rush of current destroys heating element heater.
After the technique scheme improvement; Said spiral fluted quantity is even number; Between the helicla flute starting point of above-mentioned cold junction, respectively be formed with a head downwards along the circumferential position place, at least one in the said head connects the positive pole of power supply, and all the other heads connect the negative pole of power supply.The installation and the wiring of heating element heater are convenient in the setting of head here.
The helicla flute in said hot junction is two, and these two spiral fluted starting points upwards are separated by 180 ° in said cylindrical shape calandria week, and above-mentioned two helicla flutes are parallel to each other.
Such scheme is done further improvement, and said helicla flute has identical width, spiral angle and length.Like this, can guarantee whole heating element heater homogeneous heating on the whole.And this heating element heater is one of the forming.Integrally formed like this structure has been avoided a plurality of single heating element heaters of available technology adopting, thereby the degree of aging that occurs differs, the uneven problem of the interior temperature of stove.
This heating element heater material is carborundum or molybdenum disilicide.Said head is semi-cylindrical shaped or the part loop configuration of cutting apart.
A kind of test smelting furnace comprises body of heater, is provided with above-mentioned heating element heater in this body of heater.
A plurality of single heating element heaters are set respectively in the prior art, thereby each heating element heater need be equipped with corresponding mounting structure, thereby cause installation process complicated; Mounting structure also will take suitable space simultaneously, and has adopted the application's heating element heater, then only needs a cover mounting structure; Easy for installation, and it is little to take up room, thus can reduce the design size of burner hearth; Make the structure of smelting furnace more compact, space availability ratio is higher, and the utilization rate of thermal efficiency is bigger.In addition and since this heating element heater be 360 ° closely around ground, the heated material that is positioned over hollow interior is heated with all angles ground, thereby make the furnace chamber temperature more even distribution.
Such scheme is improved, and then said body of heater also comprises inner liner, and this inner liner is located in the said heating element heater.
The design of such inner liner; Can avoid the direct radiation of heat to place the heated material in the test smelting furnace: crucible; Make the temperature field of generation more even; Heating element heater is directly corroded in the volatilization that can also prevent the glass raw material in the crucible in addition, thereby prolongs the service life of test smelting furnace.
The utility model compared with prior art has following advantage and beneficial effect: because heating element heater is through forming disconnected helicla flute more than two on the cylinder; Preferred heating element heater forms annular twin-feed spiral cutting structure; Be about to columnar heating element heater hot junction and form along helical trajectory cutting (cutting columnar heating element heater wall) two positions of 180 ° at interval from an end at interval according to design along axis direction, formation connects endways at last.Can satisfy high temperature like this and use, space availability ratio is higher, and the utilization rate of thermal efficiency is bigger, also makes the temperature field of generation more even.In addition, also this heating element heater is applied to test smelting furnace since above-mentioned heating element heater easy for installation and take up room little, thereby can reduce the design size of burner hearth, make the structure of smelting furnace more compact, space availability ratio is higher, the utilization rate of thermal efficiency is bigger.In addition and since this heating element heater be 360 ° closely around ground, the heated material that is positioned over hollow interior is heated with all angles ground, thereby make the furnace chamber temperature more even distribution.
Description of drawings
Fig. 1 is the structural representation of the heating element heater of the utility model;
Fig. 2 is the structural representation of test smelting furnace that has adopted the heating element heater of the utility model;
Fig. 3 is the cross-sectional view of body of heater A.
The specific embodiment
Below, with reference to accompanying drawing embodiment of the present invention is described.
Embodiment one:
As shown in Figure 1, be the heating element heater 1 of the utility model, it comprises hot junction and cold junction two parts, and hot junction and cold junction are connected as a single entity; The hot junction is cylindrical shape calandria 2; Cold junction 6 is positioned at the bottom in hot junction; On this cylindrical shape calandria 2; With the top of cold junction 6 is that starting point upwards is formed with two disconnected helicla flutes that are parallel to each other 31 and helicla flute 32, and above-mentioned helicla flute is along the perisporium that radially connects cylindrical shape calandria 2 of cylindrical shape calandria 2, and the upper end and the cylindrical shape calandria upper end 5 of these helicla flute 31 upper ends 41 and not shown helicla flute 32 are separated by a distance; Heating element heater 1 is formed with the ribbon structure (this hollow parts is used to place heated material) of hollow parts, promptly forms annular twin-feed spiral cutting structure.Above-mentioned hollow parts is used to place heating object.Here, so-called annular twin-feed spiral cutting structure be with columnar heating element heater hot junction along axis direction according to design at interval L from two positions at 180 ° at hot junction connecting place cold junction 6 intervals to upper edge helical trajectory cutting (cutting columnar heating element heater wall) and form, 5 form and connect endways at last; Be about to the hot junction and form the ribbon structure; Simultaneously, upwards be separated by in said cylinder week 180 ° in two helicla flute starting points in hot junction, in addition; In the utility model; The cold junction of the heating element heater part position corresponding with each helicla flute starting point (promptly on above-mentioned cold junction 6 with the corresponding position of helicla flute starting point, hot junction) respectively is formed with a head 7 downwards, and this head can be to be semi-cylindrical shaped of cutting apart or part loop configuration, also can be other structure; At least one head in a plurality of heads 7 connects the positive pole of power supply; All the other heads connect the negative pole of power supply, have represented to have the structure of two head 7 in the present embodiment, then connect the both positive and negative polarity of power supply respectively.In the present embodiment, adopt such structure, thereby the efficiency of heating surface is higher, spatial design is more reasonable, make the temperature field of generation more even because the calandria in the unit are is more.In addition, the material of the heating element heater of the utility model is preferably carborundum or molybdenum disilicide.In addition, in the present embodiment, said helicla flute is to have identical width, spiral angle and length.
Embodiment two:
Present embodiment is applied to test embodiment one described heating element heater 1 in the smelting furnace; And no longer repeat here with the embodiment one identical content about heating element heater 1; As shown in Figure 2; Test smelting furnace for the utility model, is used to support the crucible bracing frame D as the crucible of reaction vessel at the rabbling mechanism C that comprise body of heater A, be used to make elevating mechanism B that body of heater A goes up and down, is used for the reactive material in the body of heater A is stirred.
As shown in Figure 3, be the cross-sectional view of body of heater A, body of heater A comprises furnace shell 8, insulation fibre layer 9, alumina hollow ball internal layer 10, twin-feed spiral cutting structure carborundum or molybdenum silicide heating elements 1, carborundum inner liner 11, temperature thermocouple 12.Furnace shell 8 is made up of reinforcing bar and corrosion resistant plate, and the cylindrical portion of body of heater A is made up of furnace shell 8, insulation fibre layer 9, alumina hollow ball internal layer 10, twin-feed spiral cutting structure carborundum or molybdenum silicide heating elements 1 and carborundum inner liner 11 from outside to inside successively.Temperature thermocouple 12 stretches into the furnace chamber medium position from the bottom of body of heater A, thereby realizes measurement and control to temperature of smelting furnace; Heating element heater 1 is between alumina hollow ball layer 10 and the carborundum inner liner 11; Can avoid the direct radiation crucible of heat; Make the temperature field that forms in the furnace chamber more even, can also prevent that in addition the volatilization of glass raw material from directly corroding heating element heater 1, prolong the service life of smelting furnace.
As can be seen from the figure, heating element heater 1 only takies a less annular region of whole furnace chamber, and structure is comparatively compact, and space availability ratio is higher.In addition, at this moment, the object crucible (not shown) with to be heated is arranged in the inner liner 11, thereby the heat that is given out by heating element heater 1 evenly distributes for circumferential 360 ° around crucible, thereby makes the furnace chamber temperature more even distribution through behind the inner liner 11.The heating element heater 1 that passes through simultaneously to adopt such cirque structure can increase the magnitude of current of unit are around crucible, strengthens the ability that the opposing rush of current destroys heating element heater.
Certainly, the utility model also can be following structure: for example, two helicla flutes also can be not parallel; Two spiral fluted starting points are in other angle design of upwards also can being separated by in said cylinder week; In addition, heating element heater can form for split, and then connects as one through syndeton, and its material also can be other.Such conversion all drops within the protection domain of the utility model.
In addition, the utility model is not limited to above-mentioned two embodiment, so long as the spiral fluted quantity in hot junction is to get final product more than 2, and preferred even number.Downward with the cold junction connecting place at the cylindrical shell between helicla flute is provided with semicircle or circular head 7 respectively, and, each head is staggered link to each other with the both positive and negative polarity of power supply.In addition, head 7 also can be along the circumferential position place between each helicla flute starting point of cold junction 6.
In addition, preferably each bar spiral fluted length, width are identical with helical angle, like this, can make the heating of heating element heater more even.
Claims (8)
1. a heating element heater is characterized in that, this heating element heater (1) comprises hot junction and cold junction two parts; The hot junction is cylindrical shape calandria (2); Cold junction is positioned at the bottom in hot junction and is connected as a single entity with the hot junction; On this cylindrical shape calandria (2); With cold junction (6) top is that starting point upwards is formed with disconnected helicla flute more than two, and this helicla flute is along the perisporium of the radially perforation cylindrical shape calandria (2) of cylindrical shape calandria (2), and this plural spiral fluted upper end and cylindrical shape calandria (2) upper end (5) are separated by a distance.
2. heating element heater according to claim 1; It is characterized in that: said spiral fluted quantity is even number; Between the helicla flute starting point of above-mentioned cold junction (6), respectively be formed with a head (7) downwards along the circumferential position place; In the said head (7) at least one connects the positive pole of power supply, and all the other heads (7) connect the negative pole of power supply.
3. heating element heater according to claim 2 is characterized in that: the helicla flute in said hot junction is two, and these two spiral fluted starting points upwards are separated by 180 ° in said cylindrical shape calandria (2) week, and above-mentioned two helicla flutes are parallel to each other.
4. according to each described heating element heater of claim 1～3, it is characterized in that: said helicla flute has identical width, spiral angle and length.
5. according to each described heating element heater of claim 1～3, it is characterized in that: this heating element heater (1) material is carborundum or molybdenum disilicide.
6. according to claim 2 or 3 described heating element heaters, it is characterized in that: said head is semi-cylindrical shaped or the part loop configuration of cutting apart.
7. a test smelting furnace comprises body of heater (A), it is characterized in that: be provided with like the described heating element heater of claim 1～3 (1) in this body of heater (A).
8. test smelting furnace according to claim 7 is characterized in that: said body of heater (A) also comprises inner liner (11), and this inner liner (11) is located in the said heating element heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120431364 CN202350534U (en) | 2011-11-03 | 2011-11-03 | Heating element and testing smelting furnace adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120431364 CN202350534U (en) | 2011-11-03 | 2011-11-03 | Heating element and testing smelting furnace adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350534U true CN202350534U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120431364 Expired - Lifetime CN202350534U (en) | 2011-11-03 | 2011-11-03 | Heating element and testing smelting furnace adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350534U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798286A (en) * | 2012-08-14 | 2012-11-28 | 郑州磨料磨具磨削研究所 | High temperature sintering resistance furnace |
| WO2021127714A1 (en) * | 2019-02-27 | 2021-07-01 | Amann Girrbach Ag | Sintering furnace |
| CN113061848A (en) * | 2021-03-25 | 2021-07-02 | 南京昀光科技有限公司 | Evaporation source |
-
2011
- 2011-11-03 CN CN 201120431364 patent/CN202350534U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798286A (en) * | 2012-08-14 | 2012-11-28 | 郑州磨料磨具磨削研究所 | High temperature sintering resistance furnace |
| WO2021127714A1 (en) * | 2019-02-27 | 2021-07-01 | Amann Girrbach Ag | Sintering furnace |
| CN113061848A (en) * | 2021-03-25 | 2021-07-02 | 南京昀光科技有限公司 | Evaporation source |
| CN113061848B (en) * | 2021-03-25 | 2023-03-10 | 南京昀光科技有限公司 | Evaporation source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |