CN201974042U - Vertical-type large-caliber wide-temperature-filed high-temperature tubular experimental electric furnace - Google Patents
Vertical-type large-caliber wide-temperature-filed high-temperature tubular experimental electric furnace Download PDFInfo
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- CN201974042U CN201974042U CN2010205968656U CN201020596865U CN201974042U CN 201974042 U CN201974042 U CN 201974042U CN 2010205968656 U CN2010205968656 U CN 2010205968656U CN 201020596865 U CN201020596865 U CN 201020596865U CN 201974042 U CN201974042 U CN 201974042U
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- heater
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Abstract
The utility model relates to a vertical-type large-caliber wide-temperature-filed high-temperature tubular experimental electric furnace, wherein a corundum hearth tube penetrates in a middle through hole of a positioning frame, both ends of the corundum hearth tube respectively extend out of an upper connecting plate and a lower connecting plate of the positioning frame, the lower end of the corundum hearth tube is fixedly connected with an outer furnace-shell pedestal through a furnace-tube positioning brick, the upper end of the corundum hearth tube extends out of an upper cover of an outer furnace shell, and in order to meet the technical requirements of a vertical-type large-caliber wide temperature filed, the temperature is controlled in three segments by adopting a heating body with three different structures including a main heating body, an upper auxiliary heater and a lower auxiliary heater. The performances, such as the stability, the service life, the temperature-rise speed, the heat-shock resistance and the like of the temperature filed can be ensured, a practical and stable heat source is manufactured, and the experimental requirements are met.
Description
Technical field
The utility model relates to a kind of experimental electric furnace, particularly a kind of vertical large caliber wide temperature high temperature tubulose experimental electric furnace.
Background technology
At present, along with science and technology development, need be to the revision of international temperature scale, each state of high temperature field all formulate with palladium carbon altogether through a research, in the hope of at the fixing point of new temperature scale standard, in this experimental provision, need bore big:＞60mm as attainable practicality; The isothermal head of district:＞100mm. is to guarantee palladium carbon altogether through the normal operating conditions of body crucible, and how keeping of so long isothermal region is a difficult problem.
Summary of the invention
The utility model is the problem that needs the experimental electric furnace of requirements at the higher level at the new temperature scale in the present world, has proposed a kind of vertical large caliber wide temperature high temperature tubulose experimental electric furnace, a practicality of manufacturing, stablize thermal source, satisfy the needs of experiment.
The technical solution of the utility model is: a kind of vertical large caliber wide temperature high temperature tubulose experimental electric furnace, comprise outer furnace shell, locating rack, the corundum furnace tube, insulating brick, heater thermocouple, locating rack is by last, lower connecting plate and bolt are formed, wherein go up, lower connecting plate links into an integrated entity by bolt, be installed with the corundum furnace tube in the intermediate throughholes of locating rack, corundum furnace tube two ends stretch out the last lower connecting plate of locating rack respectively, fixedly connected with outer furnace shell base by boiler tube location brick in corundum furnace tube lower end, the loam cake of outer furnace shell is stretched out in corundum furnace tube upper end, electric furnace internal heat generation body comprises main heating element and auxilliary up and down heater, the main heating element two ends are fixed in the location brick of ring-type of furnace roof portion, the cold junction of assisting heater up and down partly passes the furnace wall and is connected with heater wire in the heat-insulation layer appearance, and thermocouple passes body of heater from the axial vertical direction of burner hearth.
Described main heating element and auxilliary up and down heater are along the furnace tube equal distribution.
Described thermocouple terminal daughter board is that the spring leaf of 0.3mm is fixed on the grate by thickness.
Described heater is made by the composite of conductivity type, and serviceability temperature is greater than 1800 ℃.
The beneficial effects of the utility model are: the vertical large caliber wide temperature of a utility model high temperature tubulose experimental electric furnace, can guarantee the performances such as stability, life-span, programming rate and heat shock resistance of temperature field, a practicality of manufacturing, stablize thermal source, satisfy the needs of experiment.
Description of drawings
Fig. 1 is the vertical large caliber wide temperature of a utility model high temperature tubulose experimental electric furnace structural representation.
The specific embodiment
A vertical as shown in Figure 1 large caliber wide temperature high temperature tubulose experimental electric furnace structural representation comprises outer furnace shell, locating rack, jamb brick 1, corundum furnace tube 2, insulating brick 9, heater.
Locating rack is made up of upper and lower connecting plate 6,10 and bolt, and wherein upper and lower connecting plate links into an integrated entity by bolt.
Be installed with corundum furnace tube 2 in the intermediate throughholes of locating rack, corundum furnace tube 2 two ends stretch out the last lower connecting plate of locating rack respectively, and jamb brick 1 is arranged at corundum furnace tube 2 tops, and wherein, fixedly connected with outer furnace shell base by boiler tube location brick in corundum furnace tube lower end; The loam cake of outer furnace shell is stretched out in corundum furnace tube upper end, and a holding frame 5 is installed above the outer furnace shell loam cake.
Heater is made by the composite of conductivity type, and serviceability temperature is greater than 1800 ℃.Heater has three kinds of forms, main heating element 3 is the U type heater of straight formula, length is 360mm, its two ends are fixed in the location brick of ring-type of furnace roof portion, auxilliary heater is made up of the U type heater length 120mm of square, and the cold junction of assisting heater 4,7 up and down partly passes the furnace wall and is connected with heater wire in the heat-insulation layer appearance.Each three of three kinds of heaters are along the furnace tube equal distribution.
There are three Type B thermocouples 8 of three sections temperature controls to pass body of heater from the axial vertical direction of burner hearth, its measuring junction is contacted with furnace tube, and thermocouple 8 terminal boards are that the spring leaf of 0.3mm is fixed on the grate and contact well with the furnace tube surface with the measuring junction that keeps boiler tube thermocouple under the state that expands with heat and contract with cold by thickness.
Palladium carbon is the alundum tube of back cover through the crucible body of body altogether, is inserted into during work in the isothermal region, and a seal is established on top so that logical protective gas.For the reliability that guarantees seal is put a cooling jacket below.The temperature control table is made up of one main two secondary three temperature control tables, and master meter makes three table while temperature controls by a program module, temperature-controlled precision and intensification slope precision in ± 0.1 ℃, heating power is 15KW.
Because temperature bore is big, wide this of uniform temperature field will increase the heating power of electric furnace greatly, for avoiding the overheated of heating element heater cold junction, with main heating element heater, up and down auxiliary heating element respectively from the top, the upper and lower part disperses to draw.Furnace wall thickness greater than 150mm with guarantee auxiliary heating element a little more than room temperature.The primary heater on top adopts air-cooled pressure cooling.
Claims (4)
1. vertical large caliber wide temperature high temperature tubulose experimental electric furnace, it is characterized in that, comprise outer furnace shell, locating rack, corundum furnace tube (2), insulating brick (9), heater thermocouple (8), locating rack is by last, lower connecting plate (6,10) and bolt form, wherein go up, lower connecting plate links into an integrated entity by bolt, be installed with corundum furnace tube (2) in the intermediate throughholes of locating rack, corundum furnace tube (2) two ends stretch out the last lower connecting plate of locating rack respectively, fixedly connected with outer furnace shell base by boiler tube location brick in corundum furnace tube (2) lower end, the loam cake of outer furnace shell is stretched out in corundum furnace tube (2) upper end, electric furnace internal heat generation body comprises main heating element (3) and auxilliary up and down heater (4,7), main heating element (3) two ends are fixed in the location brick of ring-type of furnace roof portion, auxilliary up and down heater (4,7) cold junction partly passes the furnace wall and is connected with heater wire in the heat-insulation layer appearance, and thermocouple (8) passes body of heater from the axial vertical direction of burner hearth.
2. according to the described vertical large caliber wide temperature of claim 1 a high temperature tubulose experimental electric furnace, it is characterized in that described main heating element (3) and auxilliary up and down heater (4,7) are along the furnace tube equal distribution.
3. according to the described vertical large caliber wide temperature of claim 1 a high temperature tubulose experimental electric furnace, it is characterized in that described thermocouple (8) terminal board is that the spring leaf of 0.3mm is fixed on the grate by thickness.
4. according to the described vertical large caliber wide temperature of claim 1 a high temperature tubulose experimental electric furnace, it is characterized in that described heater is made by the composite of conductivity type, serviceability temperature is greater than 1800 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205968656U CN201974042U (en) | 2010-11-09 | 2010-11-09 | Vertical-type large-caliber wide-temperature-filed high-temperature tubular experimental electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205968656U CN201974042U (en) | 2010-11-09 | 2010-11-09 | Vertical-type large-caliber wide-temperature-filed high-temperature tubular experimental electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974042U true CN201974042U (en) | 2011-09-14 |
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ID=44579142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205968656U Expired - Fee Related CN201974042U (en) | 2010-11-09 | 2010-11-09 | Vertical-type large-caliber wide-temperature-filed high-temperature tubular experimental electric furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN201974042U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398581A (en) * | 2013-07-23 | 2013-11-20 | 中南大学 | Vertical environmental-friendly tubular sintering furnace |
| CN103869848A (en) * | 2014-03-12 | 2014-06-18 | 中国航空工业集团公司北京航空材料研究院 | Heating furnace for plate sample fatigue test |
-
2010
- 2010-11-09 CN CN2010205968656U patent/CN201974042U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398581A (en) * | 2013-07-23 | 2013-11-20 | 中南大学 | Vertical environmental-friendly tubular sintering furnace |
| CN103869848A (en) * | 2014-03-12 | 2014-06-18 | 中国航空工业集团公司北京航空材料研究院 | Heating furnace for plate sample fatigue test |
| CN103869848B (en) * | 2014-03-12 | 2016-01-06 | 中国航空工业集团公司北京航空材料研究院 | Sheet coupon torture test heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20121109 |