CN210374041U - Double-cavity electric heating furnace - Google Patents
Double-cavity electric heating furnace Download PDFInfo
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- CN210374041U CN210374041U CN201921389429.9U CN201921389429U CN210374041U CN 210374041 U CN210374041 U CN 210374041U CN 201921389429 U CN201921389429 U CN 201921389429U CN 210374041 U CN210374041 U CN 210374041U
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Abstract
The utility model discloses a double-chamber formula electric heating furnace belongs to heating furnace technical field. The double-cavity electric heating furnace comprises a bottom plate and a heat-insulating shell, wherein the bottom plate and the heat-insulating shell form a closed heat-insulating cavity, an external heating cavity and an internal heating cavity are sequentially arranged in the heat-insulating shell, a first heat-insulating layer is filled between the heat-insulating shell and the external heating cavity, and a heating cavity is formed between the external heating cavity and the internal heating cavity; the double-cavity electric heating furnace also comprises a first heating element and a second heating element which are respectively used for heating the external heating cavity and the internal heating cavity. The utility model provides a pair of double-chamber formula electric heating furnace adopts outer heating chamber and interior heating chamber combined type heating structure for the medium is heated evenly, has avoided simultaneously first heating element and second heating element and heating medium direct contact have prolonged life.
Description
Technical Field
The utility model relates to a heating furnace technical field, in particular to double-chamber formula electric heating furnace.
Background
There are two main ways of using gas (or liquid) electric heating furnaces in common use at present: a pure internal heating mode or an external heating mode. The built-in heating efficiency is high, but the heating body is directly contacted with (gas or liquid) media, so that the corrosion is easy to occur, the service life is influenced, the heating body needs to be replaced regularly, and the maintenance and the replacement are inconvenient. The external electric heating furnace has relatively low heat efficiency and is easy to be heated unevenly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-cavity electric heating furnace to solve the problem that the heating body in the existing built-in heating furnace needs to be directly contacted with a medium, which affects the service life; the existing external heating furnace has the problems of low heating efficiency and uneven heating of the medium.
In order to solve the technical problem, the utility model provides a double-cavity electric heating furnace, which comprises a bottom plate and a heat-insulating shell, wherein the bottom plate and the heat-insulating shell form a closed heat-insulating cavity, an external heating cavity and an internal heating cavity are sequentially arranged in the heat-insulating shell, a first heat-insulating layer is filled between the heat-insulating shell and the external heating cavity, and a heating cavity is formed between the external heating cavity and the internal heating cavity and used for storing a medium to be heated; the double-cavity electric heating furnace also comprises a first heating element and a second heating element which are respectively used for heating the external heating cavity and the internal heating cavity.
Optionally, an annular air inlet distribution pipe is arranged at the bottom inside the heating cavity, and the air inlet distribution pipe is communicated with an air inlet pipe; and a plurality of air outlet holes are formed in the pipe wall of the air inlet distribution pipe.
Optionally, the top of the heating cavity is provided with an air outlet pipe, and the air outlet pipe penetrates through the top of the heat-insulating shell and is communicated with external equipment.
Optionally, a first temperature sensor is further disposed at an outlet of the outlet pipe, and is used for monitoring the temperature at the outlet of the outlet pipe.
Optionally, the first heating element sequentially penetrates through the heat-insulating housing and the first heat-insulating layer, and is arranged to be closely attached to the outer wall of the external heating cavity; the second heating element penetrates through the top of the heat-preservation shell and extends into the inner heating cavity.
Optionally, the double-cavity electric heating furnace further comprises a second temperature sensor, and the second temperature sensor penetrates through the top of the heat insulation shell and extends into the heating cavity to monitor the temperature in the heating cavity.
Optionally, a support frame is arranged between the bottom plate and the external heating cavity, and a second heat insulation layer wraps the periphery of the support frame.
Optionally, a junction box is arranged on the outer wall of the heat preservation housing, so that the first heating element can be conveniently connected with an external power supply.
Optionally, the first heating element is an L-shaped electric heating tube; the second heating element is a cluster heating core.
The utility model provides a double-chamber type electric heating furnace, which comprises a bottom plate and a heat preservation shell, wherein the bottom plate and the heat preservation shell form a closed heat preservation cavity, an external heating cavity and an internal heating cavity are sequentially arranged in the heat preservation shell, a first heat preservation layer is filled between the heat preservation shell and the external heating cavity, and a heating cavity is formed between the external heating cavity and the internal heating cavity; the double-cavity electric heating furnace also comprises a first heating element and a second heating element which are respectively used for heating the external heating cavity and the internal heating cavity. Adopt outer heating chamber and interior heating chamber combined type heating structure for the medium is heated evenly, has avoided simultaneously first heating element and second heating element and heating medium direct contact have prolonged life.
Drawings
FIG. 1 is a schematic structural view of a dual-chamber electric heating furnace provided by the present invention;
fig. 2 is a left side view of the dual-chamber electric heating furnace provided by the utility model.
Detailed Description
The following describes a dual-chamber electric heating furnace in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Example one
The utility model provides a double-chamber type electric heating furnace, as shown in figure 1, comprising a bottom plate 1 and a heat-insulating shell 2, wherein the bottom plate 1 and the heat-insulating shell 2 form a closed heat-insulating chamber, an external heating chamber 3 and an internal heating chamber 4 are sequentially arranged in the heat-insulating shell 2, a first heat-insulating layer 5 is filled between the heat-insulating shell 2 and the external heating chamber 3, and a heating chamber 6 is formed between the external heating chamber 3 and the internal heating chamber 4 and is used for storing a medium to be heated; the double-cavity electric heating furnace also comprises a first heating element 7 and a second heating element 8 which are respectively used for heating the external heating cavity 3 and the internal heating cavity 4; the first heating element 7 sequentially penetrates through the heat-insulating shell 2 and the first heat-insulating layer 5 and is arranged close to the outer wall of the external heating cavity 3; the second heating element 8 penetrates through the top of the heat-insulating shell 2 and extends into the internal heating cavity 4. The first heating element 7 and the second heating element 8 are prevented from being in direct contact with the heating medium, and the service life is prolonged. Preferably, the first heating element 7 is an L-shaped electric heating tube, and the L-shaped electric heating tube is uniformly distributed on the outer wall of the external heating cavity 3; the second heating element 8 is a cluster heater core. The outer wall of the heat preservation shell 2 is provided with a junction box 16, so that the first heating element 7 can be conveniently connected with an external power supply. A support frame 14 is further arranged between the bottom plate 1 and the external heating cavity 3, and a second heat insulation layer 15 wraps the periphery of the support frame 14.
An annular air inlet distribution pipe 9 is arranged at the bottom in the heating cavity 6, and the air inlet distribution pipe 9 is communicated with an air inlet pipe 10; and a plurality of air outlet holes are formed in the pipe wall of the air inlet distribution pipe 9. The top of heating chamber 6 is equipped with outlet duct 13, outlet duct 13 passes the top of thermal insulation shell 2 and external equipment intercommunication. And a first temperature sensor 11 is also arranged at the outlet of the air outlet pipe 13 and used for monitoring the temperature at the outlet of the air outlet pipe 13. The double-cavity electric heating furnace further comprises a second temperature sensor 12, wherein the second temperature sensor 12 penetrates through the top of the heat insulation shell 2 and extends into the heating cavity 6, and is used for monitoring the temperature of the filler in the heating cavity 6, please refer to fig. 2.
When in use, according to actual requirements, the heating cavity 6 can be filled with a getter. The first heating element 7 and the second heating element 8 respectively heat the external heating cavity 3 and the internal heating cavity 4, so that the getter in the heating cavity 6 is uniformly heated. The gas medium enters the gas inlet distribution pipe 9 through the gas inlet pipe 10, and the gas inlet distribution pipe 9 is arranged at the bottom of the heating cavity 6 and is fully and uniformly contacted with the getter in the heating cavity 6 in the gas rising process, so that the gas is fully and uniformly heated. The utility model discloses an outer heating chamber 3 and 4 combined type heating structures in interior heating chamber for the medium is heated evenly, has avoided simultaneously first heating element 7 and second heating element 8 and heating medium direct contact have prolonged life.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (9)
1. A double-cavity type electric heating furnace comprises a bottom plate (1) and a heat-insulating shell (2) which form a closed heat-insulating cavity, and is characterized in that an outer heating cavity (3) and an inner heating cavity (4) are sequentially arranged in the heat-insulating shell (2), a first heat-insulating layer (5) is filled between the heat-insulating shell (2) and the outer heating cavity (3), and a heating cavity (6) is formed between the outer heating cavity (3) and the inner heating cavity (4) and used for storing a medium to be heated; the double-cavity electric heating furnace also comprises a first heating element (7) and a second heating element (8) which are respectively used for heating the external heating cavity (3) and the internal heating cavity (4).
2. A double-chamber electric heating furnace according to claim 1, characterized in that the bottom inside the heating chamber (6) is provided with an annular intake air distribution pipe (9), and the intake air distribution pipe (9) is communicated with an intake pipe (10); and the pipe wall of the air inlet distribution pipe (9) is provided with a plurality of air outlet holes.
3. A double-chamber electric heating furnace according to claim 1, characterized in that the top of the heating chamber (6) is provided with an air outlet pipe (13), and the air outlet pipe (13) passes through the top of the heat-insulating shell (2) to be communicated with external equipment.
4. A double-chamber electric heating furnace according to claim 3, characterized in that a first temperature sensor (11) is further provided at the outlet of said outlet pipe (13) for monitoring the temperature at the outlet of said outlet pipe (13).
5. A double-chamber electric heating furnace according to claim 1, characterized in that said first heating element (7) passes through said insulating casing (2) and said first insulating layer (5) in sequence and is arranged in close proximity to the outer wall of said external heating chamber (3); the second heating element (8) penetrates through the top of the heat-insulating shell (2) and extends into the internal heating cavity (4).
6. A dual chamber electric heater according to claim 1, further comprising a second temperature sensor (12), said second temperature sensor (12) extending through the top of said insulated housing (2) into said heating chamber (6) for monitoring the temperature in said heating chamber (6).
7. A double-chamber electric heating furnace according to claim 1, characterized in that a support frame (14) is arranged between the bottom plate (1) and the external heating chamber (3), and a second insulating layer (15) is wrapped on the periphery of the support frame (14).
8. A double-chamber electric heating furnace according to claim 1, characterized in that the external wall of said insulated casing (2) is provided with a terminal box (16) to facilitate the connection of said first heating element (7) to an external power supply.
9. A double-chamber electric heating furnace according to claim 1, characterized in that said first heating element (7) is an L-shaped electric heating tube; the second heating element (8) is a cluster heating core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921389429.9U CN210374041U (en) | 2019-08-26 | 2019-08-26 | Double-cavity electric heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921389429.9U CN210374041U (en) | 2019-08-26 | 2019-08-26 | Double-cavity electric heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210374041U true CN210374041U (en) | 2020-04-21 |
Family
ID=70252596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921389429.9U Active CN210374041U (en) | 2019-08-26 | 2019-08-26 | Double-cavity electric heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210374041U (en) |
-
2019
- 2019-08-26 CN CN201921389429.9U patent/CN210374041U/en active Active
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