CN2760483Y - Temperature gradient electric furnace - Google Patents
Temperature gradient electric furnace Download PDFInfo
- Publication number
- CN2760483Y CN2760483Y CN 200420057954 CN200420057954U CN2760483Y CN 2760483 Y CN2760483 Y CN 2760483Y CN 200420057954 CN200420057954 CN 200420057954 CN 200420057954 U CN200420057954 U CN 200420057954U CN 2760483 Y CN2760483 Y CN 2760483Y
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- electric furnace
- heating wire
- nickel chromium
- chromium triangle
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Abstract
The utility model relates to a temperature gradient electric furnace, which comprises a furnace tube (1), an electric furnace liner (2), a heat-insulating layer (3), a heating wire and a temperature measurement and control device, wherein the electric furnace liner (2) is positioned between the furnace tube (1) and the heat-insulating layer (3), and the heating wire is wound on the electric furnace liner (2). The utility model is characterized in that the electric furnace liner (2) is three to nine sections; the heating wire is made of nickel-chromium materials; the second to the seventh sections of electric furnace liner (2) is wound with the heating wire (4) made of nickel-chromium materials with equal distances; the heating wire (4) made of nickel-chromium materials is connected with the corresponding temperature measurement and control device respectively; a silicon carbide tube is positioned at one end side or one to two sections of electric furnace liners (2) at the middle; the silicon carbide tube (5) is connected with the corresponding temperature measurement and control device by a conducting wire; each section of electric furnace liner (2) point is respectively provided with a thermocouple (6). The utility model has the characteristics of low cost, easy regulation of temperature gradient variation and convenient maintenance.
Description
Technical field
The utility model relates to a kind of Temperature gradient electric furnace, particularly a kind of small test Temperature gradient electric furnace.
Background technology
Temperature gradient electric furnace is that temperature is usually used in measuring the recrystallization temperature of glass with the heating furnace that furnace superintendent changes in gradient in a kind of stove.Existing Temperature gradient electric furnace (see " glass measuring technology ", Nanjing Glass Fibre Research and Design Institute is write, China Construction Industry Press, 1987) adopts the simplex winding heating wire Electric heating of unequal-interval to form the ladder temperature.There is following shortcoming in this structure:
1. owing to be simplex winding, use with a kind of exothermic material, when requiring high temperature, the whole needs used noble metal (platinum wire), costs an arm and a leg; Perhaps use molybdenum filament, but need the atmosphere protection condition.
2. because the winding unequal-interval, complex manufacturing technology, and also in case make, employed ladder temperature curve can not change, and has limited the scope of application.
3. the integral body that breaks down then can not be used, and maintenance difficult.
Summary of the invention
The purpose of this utility model is to provide that a kind of cost is low, the ladder temperature change easily regulate, Temperature gradient electric furnace easy to maintenance.
To achieve these goals, the technical solution of the utility model is: Temperature gradient electric furnace, and it comprises boiler tube 1, electric furnace courage 2, heat-insulation layer 3, heating wire, temperature detection and control device, and electric furnace courage 2 is between boiler tube 1 and heat-insulation layer 3, and heating wire is on electric furnace courage 2; It is characterized in that: electric furnace courage 2 is three to nine sections, heating wire is a nickel chromium triangle material heating wire, two to seven sections electric furnace courage 2 equal intervals are wound with nickel chromium triangle material heating wire 4, nickel chromium triangle material heating wire 4 is connected with control device with corresponding temperature detection respectively, carborunbum tube 5 is positioned on an end limit or middle one to the two section electric furnace courage 2, and carborunbum tube 5 is connected with control device with corresponding temperature detection by lead; Every section electric furnace courage 2 places are provided with thermocouple 6 respectively.
Described electric furnace courage 2 is four sections, and three sections electric furnace courage 2 equal intervals in the left side are wound with nickel chromium triangle material heating wire 4, and one section electric furnace courage 2 place, the right are provided with 5, four sections electric furnace courage 2 places of carborunbum tube and are provided with thermocouple 6 respectively.
Described electric furnace courage 2 is seven sections, three sections electric furnace courage 2 equal intervals in the left side are wound with nickel chromium triangle material heating wire 4, three sections electric furnace courage 2 equal intervals in the right are wound with nickel chromium triangle material heating wire 4, be connected with control device with a temperature detection behind first section nickel chromium triangle material heating wire 4 on the left side and first section nickel chromium triangle material heating wire 4 serial or parallel connection on the right, be connected with control device with a temperature detection behind second section nickel chromium triangle material heating wire 4 on the left side and second section nickel chromium triangle material heating wire 4 serial or parallel connection on the right, be connected with control device with a temperature detection behind the 3rd section nickel chromium triangle material heating wire 4 on the left side and the 3rd section nickel chromium triangle material heating wire 4 serial or parallel connections on the right; Middle one section electric furnace courage 2 place are provided with carborunbum tube 5, and carborunbum tube 5 is connected with control device with a temperature detection by lead; Seven sections electric furnace courage 2 places are provided with thermocouple 6 respectively.
The utility model adopts the structure of segmentation, equidistant, many windings, and its electric tube furnace courage is made up of multistage, and every section is wound with equally spaced heating wire, general each section below 1000 ℃ adopts the nickel chromium triangle material, cheap, 1000 ℃ are adopted the carborunbum tube heater element with epimere, and cost is low, price is also lower; Be arranged to multistage, the ladder temperature changes easily adjusting, easy to maintenance.Segments is relevant with terraced temperature precision, and segmentation is many more, and certainty of measurement is high more, sets different temperature controlling points, with whole formation temperature gradient, changes the setting value of each temperature controlling point, can form the different terraced temperature curves that require.
The advantage of the utility model structure is:
1. owing to adopt the equidistant winding of segmentation, manufacture craft is simple.
2. owing to segmentation, many windings can be controlled temperature respectively, therefore the terraced temperature curve that forms can be regulated, and is applied widely.
3. owing to do not use noble metal (platinum) and need not the atmosphere protection condition, cost is low, and is simple in structure.
4. fault rate is low, and maintenance easily.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1-boiler tube among the figure, 2-electric furnace courage, 3-heat-insulation layer, 4-nickel chromium triangle material heating wire, 5-carborunbum tube, 6-thermocouple.
The specific embodiment
Embodiment 1:
As shown in Figure 1, Temperature gradient electric furnace, it is made up of boiler tube 1, electric furnace courage 2, heat-insulation layer 3, heating wire 4, temperature detection and control device, carborunbum tube 5, thermocouple 6, electric furnace courage 2 is between boiler tube 1 and heat-insulation layer 3, heating wire is a nickel chromium triangle material heating wire, electric furnace courage 2 is four sections, three sections electric furnace courage 2 equal intervals in the left side are wound with nickel chromium triangle material heating wire 4, nickel chromium triangle material heating wire 4 is connected with control device with corresponding temperature detection respectively, one section electric furnace courage 2 place, the right are provided with carborunbum tube 5, and carborunbum tube 5 is connected with control device with corresponding temperature detection by lead; Four sections electric furnace courage 2 places are provided with thermocouple 6 respectively.Temperature detection and control device are prior art.
Present embodiment furnace superintendent 400mm, 400 ℃ of low side temperature, 1400 ℃ of high-end temperature, temperature becomes graded from low to high.
Embodiment 2:
Temperature gradient electric furnace, by boiler tube 1, electric furnace courage 2, heat-insulation layer 3, heating wire 4, temperature detection and control device, carborunbum tube 5, thermocouple 6 is formed, electric furnace courage 2 is between boiler tube 1 and heat-insulation layer 3, heating wire is a nickel chromium triangle material heating wire 4, electric furnace courage 2 is seven sections, three sections electric furnace courage 2 equal intervals in the left side are wound with nickel chromium triangle material heating wire 4, three sections electric furnace courage 2 equal intervals in the right are wound with nickel chromium triangle material heating wire 4, be connected with control device with a temperature detection behind first section (one section on the left side on the left side) nickel chromium triangle material heating wire 4 on the left side and first section (one section on the left side on the right) nickel chromium triangle material heating wire 4 serial or parallel connection on the right, be connected with control device with a temperature detection behind second section nickel chromium triangle material heating wire 4 on the left side and second section nickel chromium triangle material heating wire 4 serial or parallel connection on the right, be connected with control device with a temperature detection behind the 3rd section nickel chromium triangle material heating wire 4 on the left side and the 3rd section nickel chromium triangle material heating wire 4 serial or parallel connections on the right; Middle one section electric furnace courage 2 place are provided with carborunbum tube 5, and carborunbum tube 5 is connected with control device with a temperature detection by lead; Seven sections electric furnace courage 2 places are provided with thermocouple 6 respectively.Temperature detection and control device are prior art.
Present embodiment furnace superintendent 800mm, 400 ℃ of left end temperature, 1400 ℃ of intermediate ends temperature, 400 ℃ of right-hand member temperature, terraced temperature curve symmetry.
Claims (3)
1. Temperature gradient electric furnace, it comprises boiler tube (1), electric furnace courage (2), heat-insulation layer (3), heating wire, temperature detection and control device, and electric furnace courage (2) is positioned between boiler tube (1) and the heat-insulation layer (3), and heating wire is on electric furnace courage (2); It is characterized in that: electric furnace courage (2) is three to nine sections, heating wire is a nickel chromium triangle material heating wire, two to seven sections electric furnace courages (2) equal intervals is wound with nickel chromium triangle material heating wire (4), nickel chromium triangle material heating wire (4) is connected with control device with corresponding temperature detection respectively, carborunbum tube (5) is positioned on an end limit or middle one to the two section electric furnace courage (2), and carborunbum tube (5) is connected with control device with corresponding temperature detection by lead; Every section electric furnace courage (2) locates to be provided with respectively thermocouple (6).
2. Temperature gradient electric furnace according to claim 1, it is characterized in that: described electric furnace courage (2) is four sections, the three sections electric furnace courages in the left side (2) equal intervals is wound with nickel chromium triangle material heating wire (4), the one section electric furnace courage in the right (2) locates to be provided with carborunbum tube (5), and four sections electric furnace courages (2) locate to be provided with respectively thermocouple (6).
3. Temperature gradient electric furnace according to claim 1, it is characterized in that: described electric furnace courage (2) is seven sections, the three sections electric furnace courages in the left side (2) equal intervals is wound with nickel chromium triangle material heating wire (4), the right three sections electric furnace courages (2) equal intervals is wound with nickel chromium triangle material heating wire (4), be connected with control device with a temperature detection behind first section nickel chromium triangle material heating wire (4) serial or parallel connection on first section nickel chromium triangle material heating wire (4) on the left side and the right, be connected with control device with a temperature detection behind second section nickel chromium triangle material heating wire (4) serial or parallel connection on second section nickel chromium triangle material heating wire (4) on the left side and the right, be connected with control device with a temperature detection behind the 3rd section nickel chromium triangle material heating wire (4) serial or parallel connection on the 3rd section nickel chromium triangle material heating wire (4) on the left side and the right; Middle one section electric furnace courage (2) locates to be provided with carborunbum tube (5), and carborunbum tube (5) is connected with control device with a temperature detection by lead; Seven sections electric furnace courages (2) locate to be provided with respectively thermocouple (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057954 CN2760483Y (en) | 2004-12-24 | 2004-12-24 | Temperature gradient electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420057954 CN2760483Y (en) | 2004-12-24 | 2004-12-24 | Temperature gradient electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760483Y true CN2760483Y (en) | 2006-02-22 |
Family
ID=36082686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420057954 Expired - Fee Related CN2760483Y (en) | 2004-12-24 | 2004-12-24 | Temperature gradient electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760483Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121777A (en) * | 2014-07-23 | 2014-10-29 | 泰州市艾克森电热仪表设备有限公司 | Constant-temperature energy-saving electric furnace |
| CN104457248A (en) * | 2014-12-15 | 2015-03-25 | 长沙开元仪器股份有限公司 | Burning furnace |
| CN110857842A (en) * | 2018-08-22 | 2020-03-03 | 中国航发商用航空发动机有限责任公司 | Heat treatment furnace and oxidation test method |
| CN111505198A (en) * | 2020-04-22 | 2020-08-07 | 中国特种设备检测研究院 | Large-particle coke combustion characteristic testing system |
-
2004
- 2004-12-24 CN CN 200420057954 patent/CN2760483Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121777A (en) * | 2014-07-23 | 2014-10-29 | 泰州市艾克森电热仪表设备有限公司 | Constant-temperature energy-saving electric furnace |
| CN104121777B (en) * | 2014-07-23 | 2016-01-20 | 泰州市艾克森电热仪表设备有限公司 | Isothermal energy-saving electric furnace |
| CN104457248A (en) * | 2014-12-15 | 2015-03-25 | 长沙开元仪器股份有限公司 | Burning furnace |
| CN104457248B (en) * | 2014-12-15 | 2017-01-04 | 长沙开元仪器股份有限公司 | A kind of combustion furnace |
| CN110857842A (en) * | 2018-08-22 | 2020-03-03 | 中国航发商用航空发动机有限责任公司 | Heat treatment furnace and oxidation test method |
| CN111505198A (en) * | 2020-04-22 | 2020-08-07 | 中国特种设备检测研究院 | Large-particle coke combustion characteristic testing system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |