CN104061684A - Radiation type electric heater - Google Patents
Radiation type electric heater Download PDFInfo
- Publication number
- CN104061684A CN104061684A CN201410288728.9A CN201410288728A CN104061684A CN 104061684 A CN104061684 A CN 104061684A CN 201410288728 A CN201410288728 A CN 201410288728A CN 104061684 A CN104061684 A CN 104061684A
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- heat exchange
- heater
- exchange coil
- type electric
- radiation type
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Abstract
The invention relates to an industrial electric heating device, in particular to a radiation type electric heater which comprises a furnace body, and electric heating elements and heat-transferring coils which are arranged in the furnace body; the inlets and the outlets of the heat-transferring coils are led out from the side wall of the furnace body; the electric heating elements are electric heating radiant tubes; the heat-transferring coils are arranged pipe type coils, that is, the whole heat-transferring coils descend from the inlets in the upper parts to the outlets in the lower parts through transversal reciprocating bending to form front groups of vertical arranged pipes and rear groups of vertical arranged pipes. The radiation type electric heater has a simple structure, and is high in heat-transferring efficiency, convenient to mount and maintain, and long in service life; hydrops and precipitates in the coils are easily cleared up.
Description
Technical field
The present invention relates to a kind of industrial electric heating device, specifically a kind of radiation type electric heater.
Background technology
Existing industrial electric heating device generally includes heat-resisting body of heater, be arranged on the heating in heat-resisting body of heater and be used for passing into the heat exchange coil of heated medium.Its heat exchange coil adopts spiral coil structure conventionally, and its spiral central horizontal arranges, and the in-out end of coil pipe is drawn from body of heater one side, and heating adopts the electric heating tube that is distributed in spiral coil periphery conventionally.Mainly there is following defect in this structure: 1, the heat exchange coil of horizontal spiral coil arrangement is in the time shutting down, and in pipe, hydrops and sediment cannot be emptied completely, and cause corrosion of piping, obstruction, affects device service life; 2, the bending difficulty of large diameter spiral coil is large, heat exchange area deficiency, and heat exchange efficiency is low; 3, electrical heating elements cannot be placed in the inner ring of spiral coil, makes long-term one-sided being heated of coil pipe, and not only heat exchange efficiency is low, and affects coil pipe service life; 4, heating installation and maintenance difficulty.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure, heat exchange efficiency is high, hydrops and precipitation are easy to cleaning, installation and maintenance is convenient, service life is long radiation type electric heater in coil pipe.
Radiation type electric heater of the present invention includes body of heater, and is positioned at heating and the heat exchange coil of body of heater, and the entrance and exit of heat exchange coil is drawn from the sidewall of body of heater; Described heating is electrothermal radiation tube; Described heat exchange coil is calandria coil pipe, and whole heat exchange coil is from the entrance on top, and transverse reciprocating bending drops to the outlet of bottom gradually, forms forward and backward two groups of vertical combs.
Described heating has many groups, and heating inserts in body of heater from body of heater top vertical, and is distributed with heating between the front of described row's formula coil pipe, rear and two groups of combs.
On the sidewall of described body of heater, be provided with openable access door, access door has two at least, the space between positive heat exchanging coil pipe and body of heater front and back walls; Described body of heater top is also provided with some openable cover plates, the space between two groups of combs of the positive heat exchanging coil pipe of cover plate.At least one group of heating installed on the cover board.
Described heat exchange coil has at least two, parallel arranged.
The outlet side that described heat exchange coil stretches out furnace wall is provided with openable bypass leakage fluid dram.
In described body of heater, be filled with nitrogen.
The sidewall of described body of heater comprises the thermal insulation layer of outer field metal wallboard and internal layer; Stretch out the part of sidewall of the furnace body at heat exchange coil, the inside recessed formation of metal wallboard, around the metallic sheath of heat exchange coil, is filled with heat-barrier material in the annular space between metallic sheath and heat exchange coil, forms collet.
Beneficial effect of the present invention is embodied in:
1, adopt the heat exchange coil of calandria, coordinate bypass leakage fluid dram, in the time of equipment downtime, can make easily hydrops and precipitation in coil pipe emptying, protected body, extended service life;
2, adopt electrothermal radiation tube as heating, and heating is distributed in the inside and outside both sides of every group of coil pipe, improved heat exchange efficiency, extended service life;
3, the many structures that coil pipe is parallel, in ensureing heat transferring medium flow, can reduce the diameter of single coil, have reduced the difficulty of processing of coil pipe sweep, and have increased heat exchange area, have improved heat exchange efficiency;
4, sidewall of the furnace body and top arrange access door and cover plate, be convenient to each several part in stove to carry out repair and maintenance;
5, the heat-insulating connecting structure of heat exchange coil and sidewall of the furnace body, has reduced the heat conduction of furnace heat to metallic walls, has reduced the temperature rise of furnace body outer wall, has improved the thermal efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the cross-sectional view of heat exchange coil and the sidewall bound fraction of the embodiment of the present invention.
Detailed description of the invention
As shown in the figure, this radiation type electric heater includes body of heater 1, and is positioned at heating 2 and the heat exchange coil 3 of body of heater 1, and entrance 31 and the outlet 32 of heat exchange coil 3 are drawn from the sidewall 11 of body of heater; Described heating 2 is electrothermal radiation tube; Described heat exchange coil 3 is calandria coil pipe, and whole heat exchange coil is from the entrance 31 on top, and transverse reciprocating bending drops to the outlet 32 of bottom gradually, forms forward and backward two groups of vertical combs.Heating 2 has many groups, and heating inserts in body of heater 1 from body of heater top vertical, and is distributed with heating between the front of described row's formula coil pipe, rear and two groups of combs.
On the sidewall 11 of described body of heater, be provided with openable access door 12, access door has two at least, respectively the space between positive heat exchanging coil pipe and body of heater front and back walls; Described body of heater top is also provided with multiple openable cover plates 13, the space between two groups of combs of the positive heat exchanging coil pipe of cover plate; One group of heating that can shift out with cover plate 2 is installed on each cover plate 12.
Heat exchange coil 3 has two, parallel arranged.The outlet side that heat exchange coil 3 stretches out furnace wall is provided with openable bypass leakage fluid dram 33.
In body of heater 1, be filled with nitrogen.The sidewall 11 of body of heater 1 comprises the thermal insulation layer 112 of outer field metal wallboard 111 and internal layer; Stretch out the part of sidewall of the furnace body at heat exchange coil 3, the inside recessed formation of metal wallboard 111, around the metallic sheath 113 of heat exchange coil, is filled with heat-barrier material in the annular space between metallic sheath 113 and heat exchange coil 3, forms collet 114.
Claims (7)
1. a radiation type electric heater, includes body of heater (1), and is positioned at heating (2) and the heat exchange coil (3) of body of heater (1), and the entrance (31) of heat exchange coil (3) and outlet (32) are drawn from the sidewall (11) of body of heater; It is characterized in that: described heating (2) is electrothermal radiation tube; Described heat exchange coil (3) is calandria coil pipe, and whole heat exchange coil is from the entrance (31) on top, and transverse reciprocating bending drops to the outlet (32) of bottom gradually, forms forward and backward two groups of vertical combs.
2. radiation type electric heater according to claim 1, it is characterized in that: heating (2) has many groups, heating inserts in body of heater (1) from body of heater top vertical, and is distributed with heating between the front of described row's formula coil pipe, rear and two groups of combs.
3. radiation type electric heater according to claim 1, is characterized in that: on the sidewall (11) of described body of heater, be provided with openable access door (12), access door has two at least, respectively the space between positive heat exchanging coil pipe and body of heater front and back walls; Described body of heater top is also provided with multiple openable cover plates (13), the space between two groups of combs of the positive heat exchanging coil pipe of cover plate; The upper one group of heating that can shift out with cover plate (2) of installing of each cover plate (12).
4. radiation type electric heater according to claim 1, is characterized in that: heat exchange coil (3) has at least two, each heat exchange coil parallel arranged.
5. radiation type electric heater according to claim 1, is characterized in that: heat exchange coil (3) stretches out the other openable bypass leakage fluid dram (33) that is provided with of outlet of furnace wall.
6. radiation type electric heater according to claim 1, is characterized in that: body of heater is filled with nitrogen in (1).
7. radiation type electric heater according to claim 1, is characterized in that: the sidewall (11) of body of heater (1) comprises the thermal insulation layer (112) of outer field metal wallboard (111) and internal layer; The part of stretching out sidewall of the furnace body at heat exchange coil (3), the inside recessed formation of metal wallboard (111) is around the metallic sheath (113) of heat exchange coil, in annular space between metallic sheath (113) and heat exchange coil (3), be filled with heat-barrier material, form collet (114).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288728.9A CN104061684A (en) | 2014-06-25 | 2014-06-25 | Radiation type electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288728.9A CN104061684A (en) | 2014-06-25 | 2014-06-25 | Radiation type electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104061684A true CN104061684A (en) | 2014-09-24 |
Family
ID=51549523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410288728.9A Pending CN104061684A (en) | 2014-06-25 | 2014-06-25 | Radiation type electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104061684A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827318A (en) * | 2018-11-30 | 2019-05-31 | 镇江东方电热有限公司 | Dual coil pipes radiation type electric heater |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005003307A (en) * | 2003-06-13 | 2005-01-06 | Denso Corp | Heat exchanger |
| CN101634486A (en) * | 2009-08-28 | 2010-01-27 | 镇江东方电热有限公司(中外合资) | Electrical heater |
| CN201772775U (en) * | 2010-07-05 | 2011-03-23 | 无锡市信达热交换器厂 | Secondary heat exchanger |
| CN102320611A (en) * | 2011-09-09 | 2012-01-18 | 上海森松化工成套装备有限公司 | Bell jar type silicon tetrachloride heating furnace |
| CN102432015A (en) * | 2011-09-06 | 2012-05-02 | 江苏中圣高科技产业有限公司 | Uniform temperature type efficient electric heating furnace |
| CN202973555U (en) * | 2012-09-21 | 2013-06-05 | 镇江东方电热有限公司(中外合资) | Radiation type electric heating device |
| CN204128196U (en) * | 2014-06-25 | 2015-01-28 | 镇江东方电热有限公司(中外合资) | Radiation type electric heater |
-
2014
- 2014-06-25 CN CN201410288728.9A patent/CN104061684A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005003307A (en) * | 2003-06-13 | 2005-01-06 | Denso Corp | Heat exchanger |
| CN101634486A (en) * | 2009-08-28 | 2010-01-27 | 镇江东方电热有限公司(中外合资) | Electrical heater |
| CN201772775U (en) * | 2010-07-05 | 2011-03-23 | 无锡市信达热交换器厂 | Secondary heat exchanger |
| CN102432015A (en) * | 2011-09-06 | 2012-05-02 | 江苏中圣高科技产业有限公司 | Uniform temperature type efficient electric heating furnace |
| CN102320611A (en) * | 2011-09-09 | 2012-01-18 | 上海森松化工成套装备有限公司 | Bell jar type silicon tetrachloride heating furnace |
| CN202973555U (en) * | 2012-09-21 | 2013-06-05 | 镇江东方电热有限公司(中外合资) | Radiation type electric heating device |
| CN204128196U (en) * | 2014-06-25 | 2015-01-28 | 镇江东方电热有限公司(中外合资) | Radiation type electric heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827318A (en) * | 2018-11-30 | 2019-05-31 | 镇江东方电热有限公司 | Dual coil pipes radiation type electric heater |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140924 |