CN213578142U - Spiral electric heating tube - Google Patents
Spiral electric heating tube Download PDFInfo
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- CN213578142U CN213578142U CN202022001323.6U CN202022001323U CN213578142U CN 213578142 U CN213578142 U CN 213578142U CN 202022001323 U CN202022001323 U CN 202022001323U CN 213578142 U CN213578142 U CN 213578142U
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Abstract
The utility model discloses a spiral electric heating pipe, the gas that waits to heat gets into inner circle resistance element, outer lane resistance element from spiral coil shape inner circle resistance element, outer lane resistance element's lower extreme simultaneously to along its inner chamber spiral rising heating, the heating of partial gas that waits to heat rises from the space between inner spacer and inner circle resistance element, outer lane resistance element, the inside of inner circle resistance element, outer lane resistance element, the outside carries out gas heating simultaneously, heating channel is long, heating area is big, heat utilization rate is high; the temperature of the gas to be heated gradually reaches the set requirement in the process of spiral rising along the space between the inner ring resistance element and the outer ring resistance element, the circulation time in the heating element is long, the contact area with the heating element is large, the contact time is long, the gas heating effect is good, the preheating by starting equipment in advance is not needed, the thermal deformation of the inner ring resistance element and the outer ring resistance element in the shape of a spiral coil can not be generated in the heating process, the structure is simple, and the installation is convenient.
Description
Technical Field
The utility model belongs to the technical field of electrical heating equipment, concretely relates to spiral electric heating pipe.
Background
In the traditional technology, the heating element of the electric heater can only play a heating function in a single direction, the heating contact area is small, and the working efficiency of the electric heater is not high; heat is easy to dissipate in the heating process, the heat utilization rate is reduced, and the heating effect is not good; heat insulation measures such as wall thickening, heat insulation layer increasing and the like are adopted, equipment needs to be started in advance for preheating, production and manufacturing cost is increased, and economic benefit is low; in the prior art, an electric heater of a part of tubular heating elements adopts a linear tubular heating element, gas flows to a gas outlet from a gas inlet in a linear shape, the flowing time in the heating element is short, the contact area with the heating element is small, the contact time is short, and the gas heating effect is poor; the tubular heating element is generally longer, the middle auxiliary supporting block is not connected with the shell of the electric heater, and cannot be fixedly supported, so that the integral thermal deformation is easy to occur; in some technical schemes, although the linear tubular heating element is provided with the zigzag structure, the increased contact area is small, the heat dissipation and the heating effect improvement are also small, and the heating effect is not obviously improved.
Disclosure of Invention
The utility model aims to solve the technical problem that a spiral electric heating pipe that need not to start equipment in advance and preheat, prevent heat altered shape, simple structure, simple to operate is provided.
The utility model discloses a spiral electric heating pipe, its characterized in that: the resistance element comprises a double-layer resistance element formed by combining an inner ring resistance element and an outer ring resistance element, wherein the inner ring resistance element and the outer ring resistance element are respectively spiral coil-shaped resistance elements formed by spirally rising a tubular heating element; the upper ends of the double-layer resistance elements are mutually connected in series through a connector, and the lower ends of the double-layer resistance elements are respectively connected with an external power supply facility through electrodes;
the upper end and the lower end of the inner ring resistance element and the outer ring resistance element are respectively provided with a connecting section which extends upwards and downwards along the vertical direction, the inner upper connecting section of the inner ring resistance element and the outer upper connecting section of the outer ring resistance element are connected in series through a transverse connector, and the inner lower connecting section of the inner ring resistance element and the outer lower connecting section of the outer ring resistance element are respectively connected with electrodes;
the upper outer connecting section and the lower outer connecting section of the outer ring resistance element extend upwards and downwards along the vertical direction at any point on the circumferences of the upper end and the lower end of the spiral coil respectively; the upper inner connecting section of the inner resistance element is positioned at the position on the circumference of the upper end of the spiral coil pipe of the outer resistance element, which corresponds to the position point of the upper outer connecting section in the same diameter direction, and is connected to the circumference of the spiral coil pipe of the inner resistance element in an extending way through a section of tangent line; the lower inner connecting section of the inner resistance element is positioned at the position on the circumference of the lower end of the spiral coil of the outer resistance element, which corresponds to the position point of the lower outer connecting section in the same diameter direction, and is connected to the circumference of the lower end of the spiral coil of the inner resistance element in an extending way through a section of tangent line;
the lower ends of the inner ring resistance element and the outer ring resistance element are respectively connected with the electrode through flexible connection;
the flexible connection comprises two transverse conductive bars arranged along the horizontal direction and a metal braided wire fixedly connected between the two transverse conductive bars;
the inner ring resistance element and the outer ring resistance element are coaxially arranged, and an inner spacer sleeve is coaxially arranged outside the outer ring resistance element;
an auxiliary spacer ring is arranged between the inner spacer sleeve and the outer ring resistance element;
the upper end of the inner spacer sleeve is provided with a mounting plate, and the lower end of the inner spacer sleeve is provided with a sealing plate.
The utility model discloses a spiral electric heating pipe, the gas of waiting to heat gets into inner circle resistance element, outer lane resistance element from spiral coil shape inner circle resistance element simultaneously, outer lane resistance element's lower extreme, and along inner circle resistance element, outer lane resistance element inner chamber spiral rising heating, the part fails to get into inner circle resistance element, the gas of waiting to heat of outer lane resistance element inner chamber rises from the space between inner spacer and inner circle resistance element, outer lane resistance element and heats, inner circle resistance element, outer lane resistance element inside, the outside carries out gas heating simultaneously, heating channel is long, heating area is big, heat utilization rate is high; the temperature of the gas to be heated gradually reaches the set requirement in the process of spiral rising along the space between the inner ring resistance element and the outer ring resistance element, the circulation time in the heating element is long, the contact area with the heating element is large, the contact time is long, the gas heating effect is good, the preheating by starting equipment in advance is not needed, the thermal deformation of the inner ring resistance element and the outer ring resistance element in the shape of a spiral coil can not be generated in the heating process, the structure is simple, and the installation is convenient.
Drawings
Fig. 1 is a schematic structural view of a cross section of a spiral electric heating tube according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic sectional view of the spiral electric heating tube with the inner spacer according to the embodiment of the present invention.
Detailed Description
As shown in the figure, the spiral electric heating pipe is applied to a high-efficiency gas electric heater, and the specific structure of the spiral electric heating pipe is that an inner spacer sleeve 10 is coaxially arranged in an electric heater outer shell arranged along the vertical direction, an outer ring resistance element 1 and an inner ring resistance element 2 are sequentially and coaxially arranged in the inner spacer sleeve 10, and a double-layer resistance element formed by combining the outer ring resistance element 1 and the inner ring resistance element 2 is formed, the upper ends of the double-layer resistance elements are mutually connected in series through a connector, and the lower ends of the double-layer resistance elements are respectively connected with an external power supply facility through; gas to be heated simultaneously enters the inner cavities of the outer ring resistance element 1 and the inner ring resistance element 2 from the lower ends of the outer ring resistance element 1 and the inner ring resistance element 2, spirally rises along the inner cavities of the outer ring resistance element 1 and the inner ring resistance element 2 for heating, and part of the gas to be heated which does not enter the inner cavities of the outer ring resistance element 1 and the inner ring resistance element 2 rises and is heated from the space between the inner spacer 10 and the outer ring resistance element 1 and the inner ring resistance element 2; furthermore, the outer ring resistance element 1 and the inner ring resistance element 2 are respectively spiral coil-shaped resistance elements formed by the spiral rising of a tubular heating element, the inside and the outside of the outer ring resistance element 1 and the inner ring resistance element 2 simultaneously heat gas, the heating channel is long, the heating area is large, and the heat utilization rate is high; the temperature of the gas to be heated gradually reaches the set requirement in the process of spiral rising along the space between the outer ring resistance element 1 and the inner ring resistance element 2, the circulation time in the heating element is long, the contact area with the heating element is large, the contact time is long, the gas heating effect is good, the preheating by starting equipment in advance is not needed, the thermal deformation of the inner ring resistance element and the outer ring resistance element in the shape of a spiral coil can not be generated in the heating process, the structure is simple, and the installation is convenient.
Furthermore, the upper end and the lower end of the inner ring resistance element 2 and the outer ring resistance element 1 are respectively provided with a connecting section which extends upwards and downwards along the vertical direction, the inner upper connecting section 7 of the inner ring resistance element 2 and the outer upper connecting section 6 of the outer ring resistance element 1 are connected in series through a transverse connector 16, the inner lower connecting section 4 of the inner ring resistance element 2 and the outer lower connecting section 5 of the outer ring resistance element 1 are respectively connected with an electrode 15, and the electrodes 15 are respectively connected with an external power supply facility to form a series circuit so as to provide power for the inner ring resistance element 2 and the outer ring resistance element 1.
Further, an upper outer connecting section 6 and a lower outer connecting section 5 of the outer ring resistance element 1 respectively extend upwards and downwards along the vertical direction at any point on the circumferences of the upper end and the lower end of the spiral coil pipe; the upper inner connecting section 7 of the inner resistance element 2 is positioned at the position on the circumference of the upper end of the spiral coil pipe of the outer resistance element 1, which is at the position corresponding to the position point of the upper outer connecting section 6 in the same diameter direction, and is connected to the circumference of the spiral coil pipe of the inner resistance element 2 in an extending way through a section of tangent line 3; the lower inner connecting section 4 of the inner resistance element 2 is positioned at the position on the circumference of the lower end of the spiral coil pipe of the outer resistance element 1, which corresponds to the position point of the lower outer connecting section 5 in the same diameter direction, and is connected to the circumference of the lower end of the spiral coil pipe of the inner resistance element in an extending way through a section of tangent line; so as to be convenient for installing and connecting a power connecting wire.
The upper outer connecting section 6 and the lower outer connecting section 5 can be positioned in the same vertical direction or different vertical directions, and the upper inner connecting section 7 and the lower inner connecting section 4 can be positioned in the same vertical direction or different vertical directions; the upper outer connecting section 6 and the upper inner connecting section 7, and the lower outer connecting section 5 and the lower inner connecting section 4 can be respectively positioned in the same diameter direction or different diameter directions, and the specific situation depends on the actual operation situation and the installation space requirement on the site.
Furthermore, the lower ends of the inner ring resistance element 2 and the outer ring resistance element 1 are respectively connected with the electrode 15 through the flexible connection 14, so that the requirement of coefficient change caused by thermal expansion and cold contraction can be met.
Still further, flexible coupling 14 includes that two transversely lead the electrical drainage that sets up along the horizontal direction and the metal braided wire of fixed connection between two transversely lead electrical drainage, and transversely lead electrical drainage and connect reliably, and intensity is high, and stability is good, through the metal braided wire of fixed connection between two transversely lead electrical drainage adaptation expend with heat and contract with cold coefficient change requirement.
A plurality of auxiliary spacer rings 12 can be arranged outside the inner spacer 10, so that the mechanical support reliability is improved.
The upper end of the inner spacer 10 is provided with a mounting plate 11, the upper outer connecting section 6 and the upper inner connecting section 7 of the inner resistance element 2 and the outer resistance element 1 are fixedly supported and mounted through the mounting plate 11, the lower end of the inner spacer 10 is provided with a sealing plate 13, and the lower outer connecting section 5 and the lower inner connecting section 4 are fixedly supported through the sealing plate 13.
The utility model discloses a spiral electric heating pipe, the gas of waiting to heat gets into inner circle resistance element, outer lane resistance element from spiral coil shape inner circle resistance element simultaneously, outer lane resistance element's lower extreme, and along inner circle resistance element, the heating of outer lane resistance element inner chamber spiral rising, the part can not get into inner circle resistance element, the gas of waiting to heat that outer lane resistance element can the chamber rises from the space between inner spacer and inner circle resistance element, the outer lane resistance element and heats, inner circle resistance element, the inside of outer lane resistance element, the outside carries out gas heating simultaneously, heating channel is long, heating area is big, heat utilization rate is high; the temperature of the gas to be heated gradually reaches the set requirement in the process of spiral rising along the space between the inner ring resistance element and the outer ring resistance element, the circulation time in the heating element is long, the contact area with the heating element is large, the contact time is long, the gas heating effect is good, the preheating by starting equipment in advance is not needed, the thermal deformation of the inner ring resistance element and the outer ring resistance element in the shape of a spiral coil can not be generated in the heating process, the structure is simple, and the installation is convenient.
Claims (8)
1. A spiral electric heating pipe is characterized in that: the resistance element comprises a double-layer resistance element formed by combining an inner ring resistance element and an outer ring resistance element, wherein the inner ring resistance element and the outer ring resistance element are respectively spiral coil-shaped resistance elements formed by spirally rising a tubular heating element; the upper ends of the double-layer resistance elements are connected in series with each other through a connector, and the lower ends of the double-layer resistance elements are connected with an external power supply facility through electrodes respectively.
2. The spiral electric heating tube of claim 1, wherein: the upper end and the lower end of the inner ring resistance element and the outer ring resistance element are respectively provided with a connecting section which extends upwards and downwards along the vertical direction, the inner upper connecting section of the inner ring resistance element and the outer upper connecting section of the outer ring resistance element are connected in series through a transverse connector, and the inner lower connecting section of the inner ring resistance element and the outer lower connecting section of the outer ring resistance element are respectively connected with electrodes.
3. The spiral electric heating tube of claim 2, wherein: the upper outer connecting section and the lower outer connecting section of the outer ring resistance element extend upwards and downwards along the vertical direction at any point on the circumferences of the upper end and the lower end of the spiral coil respectively; the upper inner connecting section of the inner resistance element is positioned at the position on the circumference of the upper end of the spiral coil pipe of the outer resistance element, which corresponds to the position point of the upper outer connecting section in the same diameter direction, and is connected to the circumference of the spiral coil pipe of the inner resistance element in an extending way through a section of tangent line; the lower inner connecting section of the inner resistance element is positioned on the circumference of the lower end of the spiral coil of the outer resistance element and at the position corresponding to the position point of the lower outer connecting section in the same diameter direction, and is connected to the circumference of the lower end of the spiral coil of the inner resistance element in an extending mode through a section of tangent line.
4. The spiral electric heating pipe of claim 2 or 3, wherein: the lower ends of the lower inner connecting section and the lower outer connecting section of the inner ring resistance element and the outer ring resistance element are respectively connected with the electrode through flexible connection.
5. The spiral electric heating tube of claim 4, wherein: the flexible connection comprises two transverse conductive bars arranged along the horizontal direction and a metal braided wire fixedly connected between the two transverse conductive bars.
6. The spiral electric heating tube of claim 1, wherein: the inner ring resistance element and the outer ring resistance element are coaxially arranged, and an inner spacer is coaxially arranged outside the outer ring resistance element.
7. The spiral electric heating tube of claim 6, wherein: an auxiliary spacer ring is arranged between the inner spacer sleeve and the outer ring resistance element.
8. The spiral electric heating tube of claim 6, wherein: the upper end of the inner spacer sleeve is provided with a mounting plate, and the lower end of the inner spacer sleeve is provided with a sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022001323.6U CN213578142U (en) | 2020-09-14 | 2020-09-14 | Spiral electric heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022001323.6U CN213578142U (en) | 2020-09-14 | 2020-09-14 | Spiral electric heating tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213578142U true CN213578142U (en) | 2021-06-29 |
Family
ID=76571154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022001323.6U Active CN213578142U (en) | 2020-09-14 | 2020-09-14 | Spiral electric heating tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213578142U (en) |
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2020
- 2020-09-14 CN CN202022001323.6U patent/CN213578142U/en active Active
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