CN102410633A - Explosion-proof vertical electric heating system - Google Patents
Explosion-proof vertical electric heating system Download PDFInfo
- Publication number
- CN102410633A CN102410633A CN2011102015883A CN201110201588A CN102410633A CN 102410633 A CN102410633 A CN 102410633A CN 2011102015883 A CN2011102015883 A CN 2011102015883A CN 201110201588 A CN201110201588 A CN 201110201588A CN 102410633 A CN102410633 A CN 102410633A
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- Prior art keywords
- vertical electric
- explosion
- outer cylinder
- heating system
- cylinder body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
The invention discloses an explosion-proof vertical electric heating system, which comprises at least two vertical electric heaters. The vertical electric heaters are provided with air inlet pipe orifices and air outlet orifices and are connected in series through the air inlet pipe orifices and air outlet pipe orifices. Two or more than two vertically arranged vertical electric heaters are in multi-stage serial connection, the gas heating time is increased, the gas heating path is elongated, and the power and load of a single electric heater are reduced. Due to reasonable structural design, the aims of raising the outlet temperature to the temperature needed by reaction, prolonging the service life and effectively improving a local overheating phenomenon are fulfilled.
Description
Technical field
The present invention relates to gas heating field, relate in particular to a kind of energy-conservation long-acting explosion-proof vertical electric heating system.
Background technology
In chemical process, reaction temperature is a very important parameter, and in the reaction that has gas to participate in, the gas heating technique is the key that can whole technology successful, is the core of whole process flow.
In actual production; Often need be heated to uniform temperature to high temperature, high pressure, one or more poisonous, harmful, inflammable, explosive mists according to technological requirement; Stablely carry out and reduce production of by-products for what react, require very high temperature controlling.Simultaneously, gas heating also will be accomplished homogeneous heating, good effect of heat exchange, and heating can not have the hot-spot phenomenon in the heating system, to avoid other chemical reaction, corrodes even blows heating element heater.
But gas heater of the prior art still exists the gas heating inhomogeneous; The heat exchange poor effect, defective such as service life is long, thus make some gas or mist in electric heater, have the hot-spot phenomenon to occur; Corrosion even blow heating; Cause inflammable, explosive, poisonous gas to leak, bring major safety risks, influence is produced normally.
Simultaneously; Because the electric heater of prior art structure and control on unreasonable, cause can not be heated to gas in the actual production temperature required, even sometimes because transient current excessive; Arcing phenomenon between the internal wiring terminal of explosion-proof wiring chamber takes place, and causes the heating large tracts of land to puncture and burns out.
For this reason, need carry out design improvement again, thereby build the electric heater system that meets the ordinary production technological requirement the version of electric heater.
Summary of the invention
The technical problem that the present invention will solve provides a kind of can steady in a long-term the operation; The vertical electric heating system of energy-saving explosion-proof, it is inhomogeneous to the gas heating to solve present electric heater, the gas converting heat poor effect; Service life is not long; Problems such as the hot-spot of the interior heating of electric heater is serious to reach technological requirement, guarantee the safety and stability of producing.
In order to solve the problems of the technologies described above; The invention provides a kind of explosion-proof vertical electric heating system; Said electric heating system comprises at least two vertical electric heaters; Said vertical electric heater is provided with the air inlet mouth of pipe and gives vent to anger the mouth of pipe, is connected in series through the said air inlet mouth of pipe and the mouth of pipe of giving vent to anger between the said vertical electric heater.
Further, each said vertical electric heater also comprises two outer cylinder bodies, and said outer cylinder body bottom connects through 180 ° of bend pipes, and the top is connected with the explosion-proof wiring chamber through sleeve pipe; Each said outer cylinder body outside all is coated with heat-insulation layer; Each said outer cylinder body inside all is provided with the heating tube bundle that at least two electrical heating elements are formed, and said heating tube bundle passes said sleeve pipe, and it is inner to insert outer cylinder body, is provided with deflection plate between the heating tube bundle.
Further, be provided with discharging hole bottom said 180 ° of bend pipes.
Further, said heating tube bundle inside is provided with temperature element.
Further, said temperature element comprises temperature-measuring casing and the temperature instrumentation that places in the temperature-measuring casing.
Further, said outer cylinder body is provided with the ear seat.
Further, said outer cylinder body is connected through flange with said 180 ° of bend pipes or is welded to connect.
Further, said 180 ° of bend pipes are identical with said outer cylinder body diameter.
Further, the diameter range of said outer cylinder body is 200mm～600mm, and length range is 2000mm～6000mm.
Further, said electrical heating elements comprises heating wire sleeve pipe and the interior heating wire of this heating wire sleeve pipe, and this heating wire casing diameter is 10mm～25mm, and the heating surface loading is 1.0～3.0w/cm2.
The present invention adopts the vertical electric heater of vertical placement, is formed by connecting two or two above plural serial stages, increases gas heat time heating time; Prolong gas as far as possible and add hot path; Reduce the power and the load of separate unit electric heater, through reasonable structural design, it is temperature required to realize that outlet temperature reaches reaction; Increase the service life, effectively improve the purpose of hot-spot phenomenon.
Description of drawings
Fig. 1 is the structural representation of a kind of explosion-proof vertical electric heating system of the present invention.
Wherein: 1 discharging hole; 2180 ° of bend pipes; 3 heat-insulation layers; 4 outer cylinder bodies; 5 ear seats; The 6 air inlet mouths of pipe; 7 vessel flanges; 8 bolts; Connector in the middle of 9; 10 explosion-proof wiring chambeies; 11 sleeve pipes; 12 tube sheets; 13 mouths of pipe of giving vent to anger; 14 deflection plates; 15 electrical heating elements; 16 temperature elements.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further so that those skilled in the art can better understand the present invention and implementing, but the embodiment that lifts not conduct to qualification of the present invention.
As shown in Figure 1, the explosion-proof vertical electric heating system of a kind of energy-conservation long-acting type of the present invention comprises: 1,180 ° of bend pipes 2 of discharging hole, heat-insulation layer 3, outer cylinder body 4, ear seat 5, the air inlet mouth of pipe 6, vessel flange 7, bolt 8, middle connector 9, explosion-proof wiring chamber 10, sleeve pipe 11, tube sheet 12, the mouth of pipe 13 of giving vent to anger, deflection plate 14, electrical heating elements 15, temperature element 16.
The present invention is connected in series by at least two vertical electric heaters and forms; Every vertical electric heater is provided with the air inlet mouth of pipe 6 and gives vent to anger the mouth of pipe 13; Except that the mouth of pipe 13 of giving vent to anger of the air inlet mouth of pipe of the vertical electric heater of the first order 6 and the vertical electric heater of afterbody; The air inlet mouth of pipe 6 of all the other each vertical electric heaters connects the mouth of pipe 13 of giving vent to anger of the vertical electric heater of previous stage, connector 9 in the middle of the junction is called.Every vertical electric heater comprises two outer cylinder bodies 4, and outer cylinder body 4 is provided with ear seat 5, can supply the present invention to be fixedly connected on the mounting base.The outside of outer cylinder body 4 coats heat-insulation layer 3.Two outer cylinder bodies 4 connect through 180 ° of bend pipes 2 in the bottom; Connected mode can be employed in outer cylinder body 4 ends vessel flange 7 is set, and 180 ° of bend pipe 2 ends also are provided with flange simultaneously, through bolt 8 two secure are sealed; This moment, integral demounting, convenient for maintaining and cleaning can be carried out in the junction; When needing, also can directly outer cylinder body 4 lower ends directly be welded with 180 ° of bend pipe 2 ends.180 ° of bend pipe 2 bottoms are provided with discharging hole 1, can carry out emptying when needed.Explosion-proof wiring chamber 10 is fixedly connected on the tube sheet 12 through sleeve pipe 11, is connected fit sealing through bolt 8 between tube sheet 12 and the vessel flange 7.Each outer cylinder body 4 inside all is provided with heater; Some (at least two) electrical heating elements 15 is formed heating tube bundle and is passed sleeve pipe 11; Insert outer cylinder body 4 inside, be provided with deflection plate 14 between the heating tube bundle, heating tube bundle set inside temperature element 16; Temperature in the monitoring heater prevents that local temperature is too high.
In addition; Outer cylinder body 4 diameter ranges of said vertical electric heater are at 200mm～600mm; Length adopts the outer cylinder body 4 than minor diameter can increase gas flow rate at 2000mm～6000mm, helps taking away heating wire sleeve pipe 11 surperficial heats and makes it the surface temperature reduction; Reduce the generation of hot-spot phenomenon, improve the heat exchange effect.What need particularly point out is that described 180 ° of bend pipe 2 diameters are preferably identical with outer cylinder body 4 diameters, help gas flow, avoid causing flow dead.
Further; Said electrical heating elements 15 can adopt any heating technique well known in the art; This embodiment adopts heating wire sleeve pipe and the interior heating wire of this heating wire sleeve pipe, and this heating wire casing diameter is 10mm～25mm, and heating surface loading (power density) is 1.0～3.0w/cm
2The deflection plate 14 that the heating tube bundle that described some electrical heating elements 15 are formed is arranged through relative spacing prolongs gas communication length, gas is heated evenly, thereby improves the hot-spot phenomenon.
Further, described temperature element 16 comprises temperature-measuring casing and the temperature instrumentation that places in the temperature-measuring casing, and this temperature-measuring casing can be fixed on the tube sheet 12, with monitoring heating tube bundle gas inside temperature.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that the technical staff in present technique field is done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. explosion-proof vertical electric heating system; It is characterized in that; Said electric heating system comprises at least two vertical electric heaters, and said vertical electric heater is provided with the air inlet mouth of pipe and gives vent to anger the mouth of pipe, is connected in series through the said air inlet mouth of pipe and the mouth of pipe of giving vent to anger between the said vertical electric heater.
2. explosion-proof vertical electric heating system according to claim 1 is characterized in that, each said vertical electric heater also comprises two outer cylinder bodies, and said outer cylinder body bottom connects through 180 ° of bend pipes, and the top is connected with the explosion-proof wiring chamber through sleeve pipe; Each said outer cylinder body outside all is coated with heat-insulation layer; Each said outer cylinder body inside all is provided with the heating tube bundle that at least two electrical heating elements are formed, and said heating tube bundle passes said sleeve pipe, and it is inner to insert outer cylinder body, is provided with deflection plate between the heating tube bundle.
3. explosion-proof vertical electric heating system according to claim 2 is characterized in that, said 180 ° of bend pipes bottom is provided with discharging hole.
4. explosion-proof vertical electric heating system according to claim 2 is characterized in that said heating tube bundle inside is provided with temperature element.
5. explosion-proof vertical electric heating system according to claim 4 is characterized in that, said temperature element comprises temperature-measuring casing and the temperature instrumentation that places in the temperature-measuring casing.
6. explosion-proof vertical electric heating system according to claim 2 is characterized in that said outer cylinder body is provided with the ear seat.
7. explosion-proof vertical electric heating system according to claim 2 is characterized in that, said outer cylinder body is connected through flange with said 180 ° of bend pipes or is welded to connect.
8. explosion-proof vertical electric heating system according to claim 2 is characterized in that, said 180 ° of bend pipes are identical with said outer cylinder body diameter.
9. explosion-proof vertical electric heating system according to claim 2 is characterized in that the diameter range of said outer cylinder body is 200mm～600mm, and length range is 2000mm～6000mm.
10. explosion-proof vertical electric heating system according to claim 2; It is characterized in that; Said electrical heating elements comprises heating wire sleeve pipe and the interior heating wire of this heating wire sleeve pipe, and this heating wire casing diameter is 10mm～25mm, and the heating surface loading is 1.0～3.0w/cm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102015883A CN102410633A (en) | 2011-07-19 | 2011-07-19 | Explosion-proof vertical electric heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102015883A CN102410633A (en) | 2011-07-19 | 2011-07-19 | Explosion-proof vertical electric heating system |
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| Publication Number | Publication Date |
|---|---|
| CN102410633A true CN102410633A (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102015883A Pending CN102410633A (en) | 2011-07-19 | 2011-07-19 | Explosion-proof vertical electric heating system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104135782A (en) * | 2014-07-17 | 2014-11-05 | 镇江市江岛电器制造有限公司 | Electrical heater for pipeline |
| CN104266493A (en) * | 2014-10-11 | 2015-01-07 | 华能无锡电热器材有限公司 | Radiant electric heater with isothermal heat exchange pipe |
| CN106007294A (en) * | 2016-07-21 | 2016-10-12 | 北京绿创生态科技有限公司 | Combined type pipeline heating device for sludge |
| CN106122175A (en) * | 2016-06-30 | 2016-11-16 | 江苏金荣森制冷科技有限公司 | The method of work of the hydraulic pressure heat-exchange system with tube heater |
| CN106556137A (en) * | 2016-10-31 | 2017-04-05 | 江阴市国豪电热电器制造有限公司 | A kind of electric gas heater of homogeneous heating |
| CN108931049A (en) * | 2018-08-02 | 2018-12-04 | 天津蓝科机械有限公司 | A kind of electric heating water temperature machine |
| CN109668317A (en) * | 2017-10-13 | 2019-04-23 | 天津市华赛尔气体有限公司 | A kind of continous way gas-heating apparatus |
| CN111174409A (en) * | 2019-12-25 | 2020-05-19 | 盐城兴泰电热科技股份有限公司 | Novel explosion-proof pipeline electric heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2358426Y (en) * | 1999-03-23 | 2000-01-12 | 武志远 | Gas explosion-proof electric heater |
| JP2005108809A (en) * | 2003-09-10 | 2005-04-21 | Denso Corp | Electric type heater |
| CN1858510A (en) * | 2006-05-29 | 2006-11-08 | 镇江裕太防爆电加热器有限公司 | Energy saving anti-explosion electric heater |
| CN2929564Y (en) * | 2006-06-30 | 2007-08-01 | 镇江裕太防爆电加热器有限公司 | Long acting type anti-explosion electric heater |
| CN201463259U (en) * | 2009-08-18 | 2010-05-12 | 吉林市特种设备检验中心 | Reciprocating spiral-flow bearing type gas heater |
-
2011
- 2011-07-19 CN CN2011102015883A patent/CN102410633A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2358426Y (en) * | 1999-03-23 | 2000-01-12 | 武志远 | Gas explosion-proof electric heater |
| JP2005108809A (en) * | 2003-09-10 | 2005-04-21 | Denso Corp | Electric type heater |
| CN1858510A (en) * | 2006-05-29 | 2006-11-08 | 镇江裕太防爆电加热器有限公司 | Energy saving anti-explosion electric heater |
| CN2929564Y (en) * | 2006-06-30 | 2007-08-01 | 镇江裕太防爆电加热器有限公司 | Long acting type anti-explosion electric heater |
| CN201463259U (en) * | 2009-08-18 | 2010-05-12 | 吉林市特种设备检验中心 | Reciprocating spiral-flow bearing type gas heater |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104135782A (en) * | 2014-07-17 | 2014-11-05 | 镇江市江岛电器制造有限公司 | Electrical heater for pipeline |
| CN104266493A (en) * | 2014-10-11 | 2015-01-07 | 华能无锡电热器材有限公司 | Radiant electric heater with isothermal heat exchange pipe |
| CN104266493B (en) * | 2014-10-11 | 2016-05-18 | 华能无锡电热器材有限公司 | Equitemperature heat exchanger tube radiation type electric heater |
| CN106122175A (en) * | 2016-06-30 | 2016-11-16 | 江苏金荣森制冷科技有限公司 | The method of work of the hydraulic pressure heat-exchange system with tube heater |
| CN106007294A (en) * | 2016-07-21 | 2016-10-12 | 北京绿创生态科技有限公司 | Combined type pipeline heating device for sludge |
| CN106556137A (en) * | 2016-10-31 | 2017-04-05 | 江阴市国豪电热电器制造有限公司 | A kind of electric gas heater of homogeneous heating |
| CN109668317A (en) * | 2017-10-13 | 2019-04-23 | 天津市华赛尔气体有限公司 | A kind of continous way gas-heating apparatus |
| CN108931049A (en) * | 2018-08-02 | 2018-12-04 | 天津蓝科机械有限公司 | A kind of electric heating water temperature machine |
| CN111174409A (en) * | 2019-12-25 | 2020-05-19 | 盐城兴泰电热科技股份有限公司 | Novel explosion-proof pipeline electric heater |
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Application publication date: 20120411 |