CN105636254A - Electric heater for industrial process - Google Patents
Electric heater for industrial process Download PDFInfo
- Publication number
- CN105636254A CN105636254A CN201610151593.0A CN201610151593A CN105636254A CN 105636254 A CN105636254 A CN 105636254A CN 201610151593 A CN201610151593 A CN 201610151593A CN 105636254 A CN105636254 A CN 105636254A
- Authority
- CN
- China
- Prior art keywords
- container
- pipe
- electric heating
- electric
- electric heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
Abstract
The invention relates to the technical field of an electric heater for industrial process, in particular to an electric heater suitable for a gas heating occasion. The electric heater comprises a container, wherein an inlet and an outlet are arranged on the container, a support pipe is axially arranged inside the container, a lead-out bar is arranged in the support pipe, a plurality of support racks are radially arranged between the support pipe and the inner wall of the container, electric heating pipes are wound on the support racks along the radial direction of the container, and the two ends of the electric heating pipe are connected with the lead-out bar. A cross-flow mode is adopted to exchange heat; in a high turbulent condition, a surface heat exchange coefficient of a fluid and the heating pipe is high, the surface temperature of the electric heat pipe is reduced, and the service lifetime of the electric heater is prolonged. Each winding heater can independently wind, the winding pipe is unfolded if a certain part is damaged, a damage part is cut and a transition sleeve pipe is added to connect, the winding pipe is wound again, and thus, the electric heater is convenient to maintain.
Description
Technical field
The present invention relates to industrial process electric-heating technology field, especially a kind of electric heater being suitable for gas heating occasion.
Background technology
Existing industrial electric heating device often adopts the structure of circulation heater, is insert boundling electrothermal tube structure in the container of a kind of band import and export. The electric heating pipe that boundling well heater is a large amount of is welded on one piece of process flanged plate. The major defect of this structure is:
1, owing to, in process fluid flow, fluid is along the flowing of the direction of electric heating pipe, and the turbulent effect of generation is undesirable, and the coefficient of heat transfer is low, and electric heating tube-surface temperature and internal heating wire's temperature height, electric heating tube lifetime is short.
2, due to the limitation of powered heat pipe complete processing, along the direction of flow of fluid, electric heating tube wall non-uniform temperature, more arrives outlet electricity heat pipe temperature more high, also can affect the work-ing life of electric heating pipe.
3, maintenance difficult, if certain electric heating pipe damages, it usually needs under terminal box is sawed, sometimes even to be needed the electric heating pipe of surrounding also to be dismantled.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of industrial electric process heater, it is possible to reduces the surface temperature of electric heating pipe, greatly extends the work-ing life of electric heater.
In order to solve the problems of the technologies described above, the present invention comprises container, described container is provided with import and outlet, described internal tank is axially provided with supporting tube, it is provided with eduction rod in described supporting tube, between described supporting tube and container inner wall, radial direction is provided with some bracing frames, and support frame as described above is wound with electric heating pipe along container radial transmission line, and the two ends of described electric heating pipe are connected with eduction rod.
Further, described one end is provided with process tube sheet, and described eduction rod is connected through process tube sheet with terminal box.
Preferably, the electric heating tube power on each bracing frame is along import to exporter to reducing successively.
Further, the electric heating pipe on each bracing frame is provided with temperature controller.
The present invention adopts horizontal plunders mode heat exchange, and the surface film thermal conductance of high turbulent state, fluid and heating tube is just high, reduces the surface temperature of electric heating pipe, extends the work-ing life of electric heater. Each coil-shaped electric heater all can adopt independent sensor control, make the top temperature of each coil-shaped well heater close or equal as far as possible, improve the mean temperature difference between well heater and fluid, reduce the heat interchanging area of electric heater, reduce equipment cost. Each coiling well heater can independent disk around, if middle certain is damaged, coil pipe is launched, slices off in damage place, add transition spool piece and connected, more again coil, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is that bracing frame powers on the structural representation of heat pipe.
Embodiment
As depicted in figs. 1 and 2, the present invention comprises container 7, described container 7 is provided with import 3 and outlet 5, described container 7 inner shaft is to being provided with supporting tube 4, eduction rod 10 it is provided with in described supporting tube, eduction rod 10 and electric heating pipe adopt identical material, and difference is the stainless steel bars adopted in the middle of eduction rod. In order to facilitate the installation of supporting tube and eduction rod, described container 7 one end is provided with process tube sheet 2, and described eduction rod 10 is connected through process tube sheet 2 with terminal box 1. Between described supporting tube 4 and container 7 inwall, radial direction is provided with some bracing frames 8, and support frame as described above 8 is wound with electric heating pipe 6 along container radial transmission line, and the two ends of described electric heating pipe 6 are connected with eduction rod 10. It is consistent to guarantee the surface temperature of electric heating pipe as far as possible, electric heating pipe 6 power on each bracing frame 8 reduces in 5 directions along import 3 successively to exporting, one end electric heating tube power that such heated material temperature is low is big, one end electric heating tube power that heated material temperature is high is low, realize electric heating pipe homogeneous temperature, it is provided that electric heating pipe work-ing life.
In addition, in order to accurately control the temperature of electric heating pipe further, the electric heating pipe 6 on each bracing frame 8 is provided with temperature controller.
During manufacture, for ensureing to leave gap between electric heating pipe and ensure the circulation of fluid, before coiling electric heating pipe, every electric heating tube-surface coils the Stainless Steel Wire of 1-2mm diameter in advance, it is ensured that have the circulation gap of 1-2mm between the electric heating pipe after coiling.
One aspect of the present invention, owing to adopting the design of equitemperature field, reduces the heat interchanging area of electric heater, saves material and cost. On the other hand not as the process technology limit of traditional electric heating tube due to the size of U-shaped elbow, it is possible to arrange more electric heating pipe, it is possible to make electric heating tube-surface temperature lower, be particularly suitable for the heating of high-temperature gas.
Claims (4)
1. industrial electric process heater, comprise container (7), described container (7) is provided with import (3) and outlet (5), it is characterized in that, described container (7) inner shaft is to being provided with supporting tube (4), eduction rod (10) it is provided with in described supporting tube, between described supporting tube (4) and container (7) inwall, radial direction is provided with some bracing frames (8), being wound with electric heating pipe (6) along container radial transmission line on support frame as described above (8), the two ends of described electric heating pipe (6) are connected with eduction rod (10).
2. industrial electric process heater according to claim 1, it is characterized in that, described container (7) one end is provided with process tube sheet (2), and described eduction rod (10) is connected through process tube sheet (2) with terminal box (1).
3. industrial electric process heater according to claim 1, it is characterised in that, electric heating pipe (6) power on each bracing frame (8) reduces along import (3) successively to outlet (5) direction.
4. industrial electric process heater according to claim 1, it is characterised in that, the electric heating pipe (6) on each bracing frame (8) is provided with temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151593.0A CN105636254B (en) | 2016-03-16 | 2016-03-16 | industrial process electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151593.0A CN105636254B (en) | 2016-03-16 | 2016-03-16 | industrial process electric heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105636254A true CN105636254A (en) | 2016-06-01 |
| CN105636254B CN105636254B (en) | 2018-10-26 |
Family
ID=56050589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610151593.0A Active CN105636254B (en) | 2016-03-16 | 2016-03-16 | industrial process electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105636254B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550501A (en) * | 2016-10-28 | 2017-03-29 | 江阴市国豪电热电器制造有限公司 | A kind of high electric heater of stability |
| CN109737588A (en) * | 2018-12-13 | 2019-05-10 | 华能无锡电热器材有限公司 | A kind of drawable type fluid heater |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878192A (en) * | 1996-12-12 | 1999-03-02 | Water Heater Innovations, Inc. | Heating element for water heaters with scale control |
| CN201434491Y (en) * | 2009-04-29 | 2010-03-31 | 关中股份有限公司 | Water heater structure of increasing thermal efficiency |
| CN101979934A (en) * | 2010-09-21 | 2011-02-23 | 朱明华 | Complementary water heater of hot gas energy of air conditioner and kitchen and luminous energy |
| CN202598859U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Internal radiation isothermal electric heater of thermal field |
| CN204128423U (en) * | 2014-08-01 | 2015-01-28 | 张家港化工机械股份有限公司 | The bracing frame of restraining in extraordinary heat exchanger |
| CN204707295U (en) * | 2015-06-19 | 2015-10-14 | 安徽国源电气有限公司 | The quick detachable electrothermal tube of a kind of industrial anticorrosion |
| CN205491238U (en) * | 2016-03-16 | 2016-08-17 | 华能无锡电热器材有限公司 | Industrial process electric heater |
-
2016
- 2016-03-16 CN CN201610151593.0A patent/CN105636254B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5878192A (en) * | 1996-12-12 | 1999-03-02 | Water Heater Innovations, Inc. | Heating element for water heaters with scale control |
| CN201434491Y (en) * | 2009-04-29 | 2010-03-31 | 关中股份有限公司 | Water heater structure of increasing thermal efficiency |
| CN101979934A (en) * | 2010-09-21 | 2011-02-23 | 朱明华 | Complementary water heater of hot gas energy of air conditioner and kitchen and luminous energy |
| CN202598859U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Internal radiation isothermal electric heater of thermal field |
| CN204128423U (en) * | 2014-08-01 | 2015-01-28 | 张家港化工机械股份有限公司 | The bracing frame of restraining in extraordinary heat exchanger |
| CN204707295U (en) * | 2015-06-19 | 2015-10-14 | 安徽国源电气有限公司 | The quick detachable electrothermal tube of a kind of industrial anticorrosion |
| CN205491238U (en) * | 2016-03-16 | 2016-08-17 | 华能无锡电热器材有限公司 | Industrial process electric heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550501A (en) * | 2016-10-28 | 2017-03-29 | 江阴市国豪电热电器制造有限公司 | A kind of high electric heater of stability |
| CN109737588A (en) * | 2018-12-13 | 2019-05-10 | 华能无锡电热器材有限公司 | A kind of drawable type fluid heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105636254B (en) | 2018-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 89, Ximei Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Huaneng Electric Heating Equipment Co.,Ltd. Address before: No. 89, Ximei Road, Wuxi New District, Wuxi City, Jiangsu Province 214035 Patentee before: HUANENG WUXI ELECTROTHERMAL EQUIPMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address |