CN203719402U - Visual tubular furnace - Google Patents
Visual tubular furnace Download PDFInfo
- Publication number
- CN203719402U CN203719402U CN201420111794.4U CN201420111794U CN203719402U CN 203719402 U CN203719402 U CN 203719402U CN 201420111794 U CN201420111794 U CN 201420111794U CN 203719402 U CN203719402 U CN 203719402U
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- China
- Prior art keywords
- heater
- tube
- inner tube
- heater strip
- hagioscope
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Abstract
The utility model discloses a visual tubular furnace, and belongs to the technical field of tubular furnaces. The visual tubular furnace comprises a furnace body and a support, the support is used for supporting the furnace body, the furnace body comprises an outer tube and an inner tube which are coaxial, a thermoelectric couple is arranged on the inner side of the inner tube, a hot end of the thermoelectric couple extends into the inner tube, a cold end of the thermoelectric couple is connected with an input end of a temperature controller, four or more than four heating wires are arranged between the outer tube and the inner tube at intervals, the central axis of each heating wire is parallel to that of the inner tube, the heating wires are connected with an output end of the temperature controller, a fire-resistant heat insulating layer is arranged on the outer surface of the outer tube, a squint window is formed in the fire-resistant heat insulating layer and positioned at the gap position between two heating wires, and plugs are arranged at two ends of the furnace body. The visual tubular furnace can clearly observe heated samples, the position of the thermoelectric couple and the operation process, and is simple in structure and low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of tube furnace, more particularly, relates to a kind of visual tube furnace.
Background technology
Tube furnace is one of capital equipment that sample is heated, and is mainly used in experiment and the small lot batch manufactures such as universities and colleges, scientific research institutions, industrial and mining enterprises.Traditional tube furnace, because body of heater is opaque, can not be observed the situation in stove at any time.
Chinese Patent Application No. CN201210076605.X, invention and created name is: a kind of all-transparent tube type resistance furnace, this application case discloses a kind of all-transparent tube type resistance furnace, it is characterized in that concrete structure comprises inlet end, body of heater and outlet side three parts, inlet end arranges flowmeter, needle-valve, pointer vacuum meter and vacuum adapter coupling, body of heater comprises furnace body support, suprasil shell and transparent heating tube, between suprasil shell and transparent heating tube, cavity is vacuum insulation chamber, and heating wire winding is to transparent heating tube outer wall.Above-mentioned patent scheme housing and heating tube are made of transparent quartz tube, facilitate filling, fire, observe.But transparent quartz tube heat loss through radiation loss is large, and its heating wire winding is to transparent heating tube outer wall, and after electrothermal wire heating, light is very strong, can not see material state clearly.
In addition, China Patent No. ZL99245415.8, invention and created name is: a kind of pipe type high-temp furnace; Chinese Patent Application No. CN201210361878.9, invention and created name is: a kind of sealing visible tube furnace.After the resistance wire of above-mentioned patent scheme or heater strip heating, all can affect the effect of observation, not solve well convenient problem of observing example reaction situation in stove.So be still further improved for the problems referred to above.
Summary of the invention
1. the technical problem that utility model will solve
The utility model object is to overcome the deficiency that cannot conveniently observe example reaction situation in stove in prior art, a kind of visual tube furnace is provided, the utility model can clearly be observed the variation of sample in heating process, and the radiation loss of stove is little, the convenient viewing angle of adjusting of hagioscope.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The visual tube furnace of one of the present utility model, comprise body of heater and support, support is used for supporting body of heater, described body of heater comprises outer tube and the inner tube with outer coaxial tube, described inner tube inner side is provided with thermocouple, the inside of inner tube is stretched in the hot junction of above-mentioned thermocouple, the cold junction of thermocouple is connected with the input of temperature controller, between described outer tube and inner tube, be arranged at intervals with four or four above heater strips, above-mentioned heater strip axis parallels with the axis of inner tube, and described heater strip is connected with the output of temperature controller; The outer surface of described outer tube is provided with refractory insulating layer, on described refractory insulating layer, is provided with hagioscope, and described hagioscope is positioned at the interstitial site of two heater strips, and described body of heater two ends are also provided with plug.
Further improve as the utility model, the plug center of described body of heater left end is provided with through hole, on the plug of left end, be connected with swivelling cover by fixture, be provided with wire guide and air admission hole on the plug of right-hand member, described plug adopts exotic material to make.
Further improve as the utility model, described hagioscope is that diameter is the circular heat resistant glass of 6～10cm, this hagioscope is connected by oscillating bearing with refractory insulating layer, described hagioscope is provided with cover plate, described side edge thereof is provided with buckle, and the button hole arranging on this buckle and refractory insulating layer is connected.
Further improve as the utility model, described heater strip is coil spring shape, be provided with 4～10, heater strip is evenly arranged in the annular space inside between outer tube and inner tube, the diameter of every heater strip is 6～8mm, the pitch of heater strip is set to 1～4cm, and described heater strip is nickel filament.
Further improve as the utility model, described temperature controller is connected with computer, and computer is for recording the signal of temperature controller and export.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compared with existing known technology, has following beneficial effect:
(1) the visual tube furnace of one of the present utility model, on its refractory insulating layer, be provided with hagioscope, can clearly observe sample, the position of thermocouple, the operating process of heating, and hagioscope is flexibly connected by oscillating bearing with refractory insulating layer, can conveniently adjusts viewing angle;
(2) the visual tube furnace of one of the present utility model, heater strip interval between outer tube and inner tube arranges, heater strip axis parallels with the axis of inner tube, and hagioscope is positioned at the interstitial site of two heater strips, therefore can be because of the heater strip effect that shinny impact observes of generating heat;
(3) the visual tube furnace of one of the present utility model, the outer surface of outer tube is provided with refractory insulating layer, high insulating effect, and hagioscope is provided with cover plate, covers cover plate in the time not observing, and can reduce the radiation loss of stove;
(4) the visual tube furnace of one of the present utility model, be provided with thermocouple and temperature controller, can realize the precision control of tube furnace temperature, ensure the constant of tube furnace temperature, and the temperature detecting shows by computer display, can reading temperature data, show in real time and record, accurately convenient;
(5) the visual tube furnace of one of the present utility model, simple in structure, cheap for manufacturing cost.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of visual tube furnace of the present utility model;
Fig. 2 is the schematic diagram of body of heater left end plug of the present utility model;
Fig. 3 is the schematic diagram of body of heater right-hand member plug of the present utility model;
Fig. 4 is theory diagram of the present utility model.
Label declaration in schematic diagram:
1, body of heater; 2, plug; 2-1, fixture; 2-2, swivelling cover; 2-3, wire guide; 2-4, air admission hole; 3, outer tube; 4, inner tube; 5, heater strip; 6, refractory insulating layer; 7, hagioscope; 8, thermocouple; 9, temperature controller.
Detailed description of the invention
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
In conjunction with Fig. 1 and Fig. 4, the visual tube furnace of the one of the present embodiment comprises body of heater 1, support, plug 2, thermocouple 8, heater strip 5, refractory insulating layer 6, hagioscope 7 and temperature controller 9.Wherein, support is used for supporting body of heater 1, and body of heater 1 comprises outer tube 3 and the inner tube 4 coaxial with outer tube 3, and the outer tube 3 in the utility model and inner tube 4 can need to design different size according to experiment.The outer surface of outer tube 3 is provided with refractory insulating layer 6, and the refractory insulating layer 6 of the present embodiment adopts well behaved heat-barrier material, as: ceramic fibre.On refractory insulating layer 6, be provided with hagioscope 7.Inner tube 4 inner sides are provided with thermocouple 8, and the inside of inner tube 4 is stretched in the hot junction of above-mentioned thermocouple 8, and the cold junction of thermocouple 8 is connected with the input of temperature controller 9, for testing temperature in burner hearth.Key improvements point of the present utility model is: between outer tube 3 and inner tube 4, be arranged at intervals with four or four above heater strips 5, above-mentioned heater strip 5 axis parallel with the axis of inner tube 4, in the present embodiment, heater strip 5 is provided with 4, heater strip 5 is evenly arranged in the annular space inside between outer tube 3 and inner tube 4, and the interstitial site that hagioscope 7 is positioned at two heater strips 5 (is the interstitial site that the angular field of view of hagioscope 7 is positioned at two heater strips 5, can not block sight line because heater strip 5 generates heat), compared with being wrapped in the tube furnace on heating tube outer wall with heater strip in prior art, can clearly observe the sample of heating, the position of thermocouple, operating process, can be because of heater strip 5 effect that shinny impact observes of generating heat.
In the present embodiment, the diameter of every heater strip 5 is 8mm, and heater strip 5 is coil spring shape, and the pitch of heater strip 5 is set to 1cm, and heater strip 5 adopts nickel filament to make, and heater strip 5 is connected with the output of temperature controller 9.The circular heat resistant glass that in the present embodiment, hagioscope 7 is 6cm for diameter, this hagioscope 7 is flexibly connected by oscillating bearing with refractory insulating layer 6, can rotate within the specific limits, adjusts viewing angle.In order to reduce radiation loss, hagioscope 7 is provided with cover plate, and side edge thereof is provided with buckle, and the button hole arranging on this buckle and refractory insulating layer 6 is connected.
Body of heater 1 two ends in the present embodiment are also provided with plug 2, wherein, plug 2 centers of body of heater 1 left end are provided with through hole, on the plug 2 of left end, be connected with swivelling cover 2-2 by fixture 2-1, swivelling cover 2-2 outwards winding when experiment, sample is sent into inner tube 4 by through hole, simple to operation, as shown in Figure 2.On the plug 2 of right-hand member, be provided with wire guide 2-3 and air admission hole 2-4, can pass into nitrogen or other inert gases, as shown in Figure 3.The plug 2 of the present embodiment adopts exotic material to make, and this exotic material is as fire-resistant cotton.
In addition, temperature controller 9 is connected with computer, and computer is temperature controller 9 setup control programs, and the signal of temperature controller 9 is recorded and exported.
Tube furnace of the present utility model feeds back the temperature in stove by thermocouple 8, and by temperature controller 9, the temperature in the thermal treatment zone is controlled in predefined temperature range, and the precision control that realizes tube furnace temperature with this, ensures the constant of tube furnace temperature.Temperature controller 9 detects the temperature of the thermal treatment zone by thermocouple 8, the temperature of detection shows by computer display, can reading temperature data, show in real time and record.
Embodiment 2
The basic structure of the present embodiment is with embodiment 1, and difference is: heater strip 5 is provided with 6, and the diameter of every heater strip 5 is 7mm, and the pitch of coil spring shape heater strip 5 is set to 3cm, the circular heat resistant glass that hagioscope 7 is 8cm for diameter.
Embodiment 3
The basic structure of the present embodiment is with embodiment 1, and difference is: heater strip 5 is provided with 10, and the diameter of every heater strip 5 is 6mm, and the pitch of coil spring shape heater strip 5 is set to 4cm, the circular heat resistant glass that hagioscope 7 is 10cm for diameter.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (5)
1. a visual tube furnace, comprise body of heater (1) and support, support is used for supporting body of heater (1), it is characterized in that: described body of heater (1) comprises outer tube (3) and the inner tube (4) coaxial with outer tube (3), described inner tube (4) inner side is provided with thermocouple (8), the inside of inner tube (4) is stretched in the hot junction of above-mentioned thermocouple (8), the cold junction of thermocouple (8) is connected with the input of temperature controller (9), between described outer tube (3) and inner tube (4), be arranged at intervals with four or four above heater strips (5), above-mentioned heater strip (5) axis parallels with the axis of inner tube (4), described heater strip (5) is connected with the output of temperature controller (9), the outer surface of described outer tube (3) is provided with refractory insulating layer (6), on described refractory insulating layer (6), be provided with hagioscope (7), described hagioscope (7) is positioned at the interstitial site of two heater strips (5), and described body of heater (1) two ends are also provided with plug (2).
2. the visual tube furnace of one according to claim 1, it is characterized in that: plug (2) center of described body of heater (1) left end is provided with through hole, the plug (2) of left end is above connected with swivelling cover (2-2) by fixture (2-1), is provided with wire guide (2-3) and air admission hole (2-4) on the plug (2) of right-hand member.
3. the visual tube furnace of one according to claim 2, it is characterized in that: the circular heat resistant glass that described hagioscope (7) is 6～10cm for diameter, this hagioscope (7) is connected by oscillating bearing with refractory insulating layer (6), described hagioscope (7) is provided with cover plate, described side edge thereof is provided with buckle, and the upper button hole arranging of this buckle and refractory insulating layer (6) is connected.
4. according to the visual tube furnace of the one described in claim 1 or 3, it is characterized in that: described heater strip (5) is coil spring shape, be provided with 4～10, heater strip (5) is evenly arranged in the annular space inside between outer tube (3) and inner tube (4), the diameter of every heater strip (5) is 6～8mm, the pitch of heater strip (5) is set to 1～4cm, and described heater strip (5) is nickel filament.
5. the visual tube furnace of one according to claim 4, is characterized in that: described temperature controller (9) is connected with computer, and computer is for recording the signal of temperature controller (9) and export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111794.4U CN203719402U (en) | 2014-03-12 | 2014-03-12 | Visual tubular furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420111794.4U CN203719402U (en) | 2014-03-12 | 2014-03-12 | Visual tubular furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719402U true CN203719402U (en) | 2014-07-16 |
Family
ID=51158549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420111794.4U Expired - Fee Related CN203719402U (en) | 2014-03-12 | 2014-03-12 | Visual tubular furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203719402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442166A (en) * | 2016-09-14 | 2017-02-22 | 太原理工大学 | Device and method for high-temperature impact torsion test of hopkinson bar |
| CN109253912A (en) * | 2017-07-13 | 2019-01-22 | 中石化石油工程技术服务有限公司 | The support device of high temperature oxidation furnace and its sampling device, sample injector |
-
2014
- 2014-03-12 CN CN201420111794.4U patent/CN203719402U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442166A (en) * | 2016-09-14 | 2017-02-22 | 太原理工大学 | Device and method for high-temperature impact torsion test of hopkinson bar |
| CN109253912A (en) * | 2017-07-13 | 2019-01-22 | 中石化石油工程技术服务有限公司 | The support device of high temperature oxidation furnace and its sampling device, sample injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150312 |
|
| EXPY | Termination of patent right or utility model |