CN1700812B - A high-power explosion-proof electric heating apparatus - Google Patents
A high-power explosion-proof electric heating apparatus Download PDFInfo
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- CN1700812B CN1700812B CN 200510038994 CN200510038994A CN1700812B CN 1700812 B CN1700812 B CN 1700812B CN 200510038994 CN200510038994 CN 200510038994 CN 200510038994 A CN200510038994 A CN 200510038994A CN 1700812 B CN1700812 B CN 1700812B
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Abstract
This invention discloses one electrical heater with large power and explosion proof applied in methane chloride chlorination reactor, which comprises electrical heater, shell and explosion shell full of nitrogen, wherein, the heater is distributed in thermal area heating blocks with total power of 50-500KW and adopts high voltage current designs with voltage less than 600V and operating voltage 0-600V, operation current 0-200A; the power, voltage and current are adjusted from zero to maximization and adopt automatic control; the heating block is fixed inside the cover full of inert gases.
Description
Technical field
The present invention relates to be used for a kind of high-power explosion-proof electric heating apparatus of methane chloride thermal chlorination reactor.
Background technology
The combustion gas heating is normally adopted in the heating of present domestic methane chloride thermal chlorination reactor, around this reactor, build a heating furnace, build refractory brick in the stove, this reactor vessel major part is placed in the body of heater, at the base burning hydrogen or the natural gas of this reactor, this reactor is heated up reach the reaction temperature of regulation.Use this method heating to have following defective: the naked light heating, can not satisfy Chemical Manufacture zone requirement of explosion proof; Difficult control of temperature; Can't satisfy the heating in the production process, more can't automation control.
Summary of the invention
For addressing the above problem, the invention provides a kind of high-power explosion-proof electric heating apparatus that satisfies the production scene requirement of explosion proof.
Technical scheme of the present invention is; It mainly is made up of electric heater, shell and the explosion-proof case that is full of nitrogen, electric heater is that the electric heating piece that is distributed in the heating region of reactor is formed, the electric heating piece is divided into the 1-6 group, every group of 3-9 layer, every layer of 5-25 piece, every electric heating piece power is 1-5KW, combination back electric heating piece gross power 50-500KW, the design of employing high voltage low current, supply power voltage is smaller or equal to 600V, working voltage 0-600V, running current 0-200A, electrical power, voltage, electric current do not have point of accumulation from zero to peak to be regulated, and adopts automation control; Heat block is assembled in the explosion-proof case that is full of nitrogen.
The present invention forms the reinforcement heating space with high temperature resistant member, the electric heating piece makes by the complete symmetry on the geometric features that axial and circumferential temperature is uniformly distributed in the reactor heating region in the heating space, electric heater is strengthened heating to reactor wall, in the reactor heat medium by with tube wall convection current, radiant heat transfer, equipment thermal efficiency height; On the version; Be divided into the 2-5 group, every group of 4-8 layer, every layer of 7-20 piece, every electric heating piece power is 1.5-4KW, combination back electric heating piece gross power 80-450KW, supply power voltage is smaller or equal to 500V output voltage 0-500V, output current 0-180A, electrical power adopts PLC and DCS combination control automatically according to temperature sensor signal; Automatic effective output voltage size of regulating after the PID computing, control electric heater power output, are controlled the resistive load realization temperature of heater element to the peak linear regulation from zero.
Embodiment
Form the reinforcement heating space with high temperature resistant member, the electric heating piece makes by the complete symmetry on the geometric features that axial and circumferential temperature is uniformly distributed in the reactor heating region in the heating space, by the selection on optimal design on the heat transfer type and core component material, can guarantee equipment continuous use at high temperature again.Electric heater is strengthened heating to reactor wall, in the reactor heat medium by with tube wall convection current, radiant heat transfer, equipment thermal efficiency height.Be divided into the 2-5 group on the version, every group of 4-8 layer, every layer of 7-20 piece, every electric heating piece power is 1.5-4KW, combination back electric heating piece gross power 80-450KW, and supply power voltage is smaller or equal to 500V, output voltage 0-500V, output current 0-180A, electrical power adopts PLC and DCS combination control automatically according to temperature sensor signal; To the peak linear regulation, the resistive load realization temperature control to heater element makes medium temperature even, reaches required technological requirement from zero for the automatic output voltage size of effectively regulating after the PID computing, control electric heater power output.Its heat exchange area is big, conducts heat, is heated evenly; And electric heater mechanical strength height, good insulation preformance, corrosion-resistant and advantages such as anti-thermal shock, high temperature creep-resisting are arranged; Operating condition is good, easy temperature control system, and the life-span is long, installation and maintenance are convenient.This heater is formed by combining by high temperature resistance silk, refractory ceramics insulating support, dividing plate, insulation, shell and the explosion-proof case that is full of nitrogen; Thereby reach I level 2 district's requirement of explosion proof.
Claims (2)
1. high-power explosion-proof electric heating apparatus, it is mainly by electric heater, shell and the explosion-proof case that is full of nitrogen are formed, electric heater is that the electric heating piece that is distributed in the heating region of reactor is formed, the electric heating piece is divided into the 1-6 group, every group of 3-9 layer, every layer of 5-25 piece, every electric heating piece power is 1-5KW, combination back electric heating piece gross power 50-500KW adopts the high voltage low current design, and supply power voltage is smaller or equal to 600V, working voltage 0-600V, running current 0-200A, electrical power, voltage, electric current does not have point of accumulation from zero to peak to be regulated, and adopts automation control; Heat block is assembled in the explosion-proof case that is full of nitrogen.
2. according to the described electric heater unit of claim 1, it is characterized in that forming the reinforcement heating space with high temperature resistant member, the electric heating piece makes by the complete symmetry on the geometric features that axial and circumferential temperature is uniformly distributed in the reactor heating region in the heating space, electric heater is strengthened heating to reactor wall, in the reactor heat medium by with tube wall convection current, radiant heat transfer; The electric heating piece is divided into 2-5 group, every group of 4-8 layer, every layer of 7-20 piece on version, every electric heating piece power is 1.5-4KW, combination back electric heating piece gross power 80-450KW, and supply power voltage is smaller or equal to 500V, electrical power adopts PLC and DCS combination control automatically according to temperature sensor signal; Automatic effective output voltage size of regulating after the PID computing, control electric heater power output, are controlled the resistive load realization temperature of heater element to the peak linear regulation from zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510038994 CN1700812B (en) | 2005-04-21 | 2005-04-21 | A high-power explosion-proof electric heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510038994 CN1700812B (en) | 2005-04-21 | 2005-04-21 | A high-power explosion-proof electric heating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1700812A CN1700812A (en) | 2005-11-23 |
| CN1700812B true CN1700812B (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510038994 Active CN1700812B (en) | 2005-04-21 | 2005-04-21 | A high-power explosion-proof electric heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1700812B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5323220B2 (en) * | 2012-02-22 | 2013-10-23 | 株式会社クボタ | Explosion-proof load cell device |
| CN111271872A (en) * | 2018-12-04 | 2020-06-12 | 宁波方太厨具有限公司 | Low-nitrogen gas dual-purpose stove |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189372Y (en) * | 1994-04-15 | 1995-02-08 | 北京燕山石油化工公司研究院 | Sealed type explosive-proof electric heater |
-
2005
- 2005-04-21 CN CN 200510038994 patent/CN1700812B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189372Y (en) * | 1994-04-15 | 1995-02-08 | 北京燕山石油化工公司研究院 | Sealed type explosive-proof electric heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1700812A (en) | 2005-11-23 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU MEILAN CHEMICAL CO., LTD. Free format text: FORMER NAME: MEILAN CHEMICAL CO., LTD., JIANGSU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 225300 No. 460, Yangzhou Road, Taizhou, Jiangsu Co-patentee after: Yangzhou Huasheng Chemical Electrical Appliance Co., Ltd. Patentee after: Jiangsu Meilan Chemical Co., Ltd. Address before: 225300 No. 460, Yangzhou Road, Taizhou, Jiangsu Co-patentee before: Yangzhou Huasheng Chemical Electrical Appliance Co., Ltd. Patentee before: Meilan Chemical Co., Ltd., Jiangsu |