CN210143131U - Reducing electric heating tube - Google Patents
Reducing electric heating tube Download PDFInfo
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- CN210143131U CN210143131U CN201920311946.8U CN201920311946U CN210143131U CN 210143131 U CN210143131 U CN 210143131U CN 201920311946 U CN201920311946 U CN 201920311946U CN 210143131 U CN210143131 U CN 210143131U
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- electrothermal tube
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Abstract
The utility model discloses an electrothermal tube provides a simple structure, and the commonality is good, and the reducing electrothermal tube that low in manufacturing cost has solved the diversified manufacturing cost who leads to of flange specification that exists among the prior art height, and the technical problem of commonality difference etc. it includes the electrothermal tube body and locates the flange of this end of body of electrothermal tube, has alternated the heating wire in this internal electrothermal tube, the electrothermal tube body is including the section of generating heat, and the outside inwards extension of the tip of the section of generating heat forms the linkage segment, and the linkage segment is connected on the flange port.
Description
Technical Field
The utility model relates to an electrothermal tube especially relates to a commonality is good, compact structure is reasonable, low in manufacturing cost's reducing electrothermal tube.
Background
The heating value of the heating part of the electric heating tube in unit area is directly related to the heating efficiency, the service life and the like, the pipe diameters of the existing electric heating tube are generally uniform, the end parts of the electric heating tube are fixedly connected through the flange, the size of an inner hole of the matched flange is determined to be consistent with the pipe diameter of the electric heating tube, for the flat flange, the influence of the pipe diameter change of the electric heating tube on the flange cost is not large, but the electric heating tube is generally fixedly connected through a threaded flange, the flange cost is directly influenced by the change of the thread specification, meanwhile, the flange specification is diversified due to different pipe diameters of the electric heating tube under different use conditions, and the universality is.
Disclosure of Invention
The utility model mainly provides a simple structure, the commonality is good, and low in manufacturing cost's reducing electrothermal tube has solved the manufacturing cost height that the flange specification diversification that exists leads to among the prior art, the technical problem of commonality difference etc.
The above technical problem of the present invention can be solved by the following technical solutions: the reducing electric heating tube comprises an electric heating tube body and a connecting flange arranged at the end part of the electric heating tube body, wherein an electric heating wire is inserted in the electric heating tube body, the electric heating tube body comprises a heating section, the end part of the heating section outwards and inwards extends to form a connecting section, and the connecting section is connected to the port of the connecting flange. Divide into the multistage shaping with the electrothermal tube body, a section of generating heat for satisfying heating function, and be used for flange's linkage segment, in order to guarantee the heating function of electrothermal tube, the section diameter of generating heat remains unchanged, the linkage segment diameter diminishes and flange adapter coupling, the linkage segment adopts the integral type with the section of generating heat simultaneously to be connected, not only improve the bulk strength of electrothermal tube body, it is balanced to have guaranteed its surface heating power again, because the linkage segment diameter is less than the section diameter of generating heat, and linkage segment and flange adapter, thereby under the changeable condition of section diameter of generating heat, can satisfy flange's connection requirement through the diameter of unified linkage segment, the commonality is good, manufacturing cost has been practiced thrift.
Preferably, the connecting section is bent and then connected to the port of the connecting flange. The existing white electricity products tend to be miniaturized, the bending radius of the electric heating tube cannot be smaller due to the fact that the diameter of the electric heating tube directly determines the size of the bending radius, and therefore the development of related electric products to the miniaturization is restricted.
Preferably, the heating section is in smooth transition connection with the connecting section through a conical transition section. When the heating section is in smooth transition connection with the connecting section through the conical transition section, stress concentration at the connecting part can be avoided, and the strength of the electric heating tube is improved.
Preferably, the connecting end of the connecting section is coaxial with the corresponding heating section. The connecting section at the end of the heating section is connected in a coaxial integrated forming mode, on one hand, reliable connection of the heating section and the connecting section is guaranteed, on the other hand, the heating wire and the heating section are guaranteed to be coaxial, and therefore the surface heating balance of the heating section is guaranteed to be consistent.
Preferably, the wall thickness of the heating section is smaller than that of the connecting section. The both ends of the heating section are formed into the connecting section by reducing the aperture through processing modes such as forging and the like, the processing and forming modes are simple and convenient, and the thickened connecting section improves the overall strength of the electric heating tube.
Preferably, the material of the electrothermal tube body is stainless steel, copper or aluminum. The stainless steel, copper or aluminum material has low cost, good thermal conductivity and ductility and easy processing and forming.
Preferably, the connecting flange is a threaded flange. And a threaded flange is adopted, so that the connection mode is simple and reliable.
Therefore, the reducing electrothermal tube of the utility model has the following advantages: the connecting section and the heating section are integrally connected, the strength is high, the connecting requirement of the connecting flange is met by reducing the diameter of the connecting section to a set value under the condition that the diameter of the heating section is variable, the universality is good, the manufacturing cost is saved, meanwhile, the bending radius of the connecting section is smaller due to the reduction of the diameter of the connecting section, the miniaturization design of related electric products is facilitated, and the structure of the electric products is more compact and reasonable; when the heating section is in smooth transition connection with the connecting section through the conical transition section, stress concentration at the connecting part can be avoided, and the overall strength of the electric heating tube is improved; the diameter of the two ends of the heating section is reduced by forging and other processing modes, and the processing and forming are convenient.
Description of the drawings:
fig. 1 is a schematic structural view of the reducing electrothermal tube of the present invention.
The specific implementation mode is as follows:
the technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
as shown in figure 1, the reducing electric heating tube of the present invention comprises an electric heating tube body 1 and connecting flanges 2 fixed at the two ends of the electric heating tube body 1, the connecting flanges 2 are screw flanges, the electric heating tube body 1 is made of stainless steel, a heating wire 3 is coaxially inserted in the electric heating tube body 1, the two ends of the heating wire 3 extend out of the corresponding connecting flanges 2, wherein the electric heating tube body 1 comprises a heating section 11, the wall thickness of the wall of the heating section 11 is 0.45mm, the two ends of the heating section 11 are respectively forged and then extended outwards to form a connecting section 12, the wall thickness of the connecting section 12 formed by forging is larger than the wall thickness of the wall of the heating section 11, in order to improve the strength of the electric heating tube body 1, the heating section 11 and the connecting section 12 are coaxially connected through a tapered transition section 13, and smooth transition connection is maintained between the connecting end of the tapered transition section 13 and the corresponding heating section 11 and connecting section 12, the connecting sections 12 at the two ends are connected to the corresponding ports of the connecting flange 2 after being bent in the same direction at 90 degrees.
The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a reducing electrothermal tube, includes electrothermal tube body (1) and locates flange (2) of electrothermal tube body (1) tip, has alternated heating wire (3) in electrothermal tube body (1), its characterized in that: the electric heating tube body (1) comprises a heating section (11), the end part of the heating section (11) extends outwards and inwards to form a connecting section (12), and the connecting section (12) is connected to the port of the connecting flange (2).
2. The reducing electrical heating tube of claim 1, wherein: the connecting section (12) is connected to the port of the connecting flange (2) after being bent.
3. The reducing electrical heating tube according to claim 1 or 2, wherein: the heating section (11) is in smooth transition connection with the connecting section (12) through a conical transition section (13).
4. The reducing electrical heating tube according to claim 1 or 2, wherein: the connecting end of the connecting section (12) is coaxial with the corresponding heating section (11).
5. The reducing electrical heating tube according to claim 1 or 2, wherein: the wall thickness of the heating section (11) is smaller than that of the connecting section (12).
6. The reducing electrical heating tube according to claim 1 or 2, wherein: the electric heating tube body (1) is made of stainless steel, copper or aluminum.
7. The reducing electrical heating tube according to claim 1 or 2, wherein: the connecting flange (2) is a threaded flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920311946.8U CN210143131U (en) | 2019-03-12 | 2019-03-12 | Reducing electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920311946.8U CN210143131U (en) | 2019-03-12 | 2019-03-12 | Reducing electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210143131U true CN210143131U (en) | 2020-03-13 |
Family
ID=69732857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920311946.8U Active CN210143131U (en) | 2019-03-12 | 2019-03-12 | Reducing electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210143131U (en) |
-
2019
- 2019-03-12 CN CN201920311946.8U patent/CN210143131U/en active Active
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