CN202598859U - Internal radiation isothermal electric heater of thermal field - Google Patents

Internal radiation isothermal electric heater of thermal field Download PDF

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Publication number
CN202598859U
CN202598859U CN 201220232709 CN201220232709U CN202598859U CN 202598859 U CN202598859 U CN 202598859U CN 201220232709 CN201220232709 CN 201220232709 CN 201220232709 U CN201220232709 U CN 201220232709U CN 202598859 U CN202598859 U CN 202598859U
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CN
China
Prior art keywords
heating
heating tube
electric heater
thermal field
heating tubes
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.)
Expired - Lifetime
Application number
CN 201220232709
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Chinese (zh)
Inventor
俞祥九
戚洪明
肖丰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUANENG WUXI ELECTROTHERMAL EQUIPMENT CO Ltd
Original Assignee
HUANENG WUXI ELECTROTHERMAL EQUIPMENT CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUANENG WUXI ELECTROTHERMAL EQUIPMENT CO Ltd filed Critical HUANENG WUXI ELECTROTHERMAL EQUIPMENT CO Ltd
Priority to CN 201220232709 priority Critical patent/CN202598859U/en
Application granted granted Critical
Publication of CN202598859U publication Critical patent/CN202598859U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an internal radiation isothermal electric heater of a thermal field. Heating tubes are connected with a junction box, a cable inlet and a nitrogen charge port are arranged on the junction box, a mounting plate is installed between the heating tubes for fixing, an over-temperature sensor is arranged on outer walls of the heating tubes, and the heating tubes are welded with a process flange and inserted in a container. A heating assembly is inserted in a heating assembly, a terminal is arranged at one end of a cold end guiding rod, the cold end guiding rod penetrates through a fiber thermal baffle, the other end of the cold end guiding rod is connected with a heating wire, the heating wire is arranged from a thick wire to a rare wire according to the flow direction of a medium, and ceramic support pieces are arranged in the heating tubes. The heating tubes are made of steel tubes with the diameter of 50mm-76mm and the wall thickness of 3-6mm. The internal radiation isothermal electric heater has the advantages of being good in high temperature and high pressure resistance and corrosion resistance, convenient to replace, applicable to anti-explosion fields and the like and having big popularization value.

Description

The isothermal thermal field electric heater of interior radiation
Technical field:
The utility model relates to a kind of electric heater, particularly a kind of interior isothermal thermal field electric heater of radiation.
Background technology:
In the very strong heating occasion of high temperature, high pressure or corrosivity; The for example heating of silicon tetrachloride, hydrogen chloride etc. generally all adopts traditional circulation heater to heat, the heating tubular electrothermal element wall thickness very thin (being generally 1mm) of these electric heaters; And often there is the uneven problem in temperature field in circulation heater; Can cause medium heat exchanging tube wall to produce corrosion, and then cause heat exchanger tube to leak, cause the paralysis of system; Therefore service life very short, the replacing of equipment has brought the influence of environment and shut-down, stopping production again.
The utility model content:
The purpose of the utility model is to provide the isothermal thermal field electric heater of interior radiation that a kind of high temperature high voltage resistant, corrosion resistance are good, be convenient to change, be applicable to explosion-proof occasion.
To achieve these goals, the utility model proposes following technical scheme realization:
The isothermal thermal field electric heater of interior radiation is made up of terminal box, process flange, heating tube, container, gripper shoe, over-temperature sensor, heat generating component; It is characterized in that: heating tube links to each other with terminal box, and terminal box is provided with cable access, fills the nitrogen mouth; Gripper shoe is installed between heating tube fixes, on the heating tube outer wall, be provided with over-temperature sensor, heating tube and the welding of process flange, and insert in the container; Insert heat generating component in the heating tube.
Described heat generating component draws rod, terminals, fiber thermal insulation board by ceramic supporting element, heating wire, cold junction and forms; Cold junction draws an excellent end and is provided with terminals, and cold junction draws rod and passes the fiber thermal insulation board and connect heating wire at the other end, heating wire according to the flow direction of medium from close silk to rare layout, be provided with ceramic supporting element in the heating tube.
Described heating tube adopts the steel pipe of diameter 50mm-76mm, wall thickness 3-6mm.
The soluble technical problem of the utility model is:
(1) in the heating tube heating wire according to the flow direction of medium from close silk to rare layout, it is more reasonable to make in the heating tube that the temperature field distributes, cold medium can access more heats, the medium after the heating can not corrode the heating tube wall because of too much heat yet.
(2) heating tube adopts the steel pipe of diameter 50mm-76mm, wall thickness 3-6mm, and major diameter, the structure of heavy wall can make the corrosion resistance of heating tube stronger; Resistant to elevated temperatures ceramic supporting element is contained in heating tube inside, can bear the pressure of 430bar and 850 ℃ temperature, is applicable to explosion-proof occasion.
(3) change heating tube like need, can the process flange be extracted out, do not need the emptying medium, the scene replacing heating element heater of can loosing core is convenient for changing.
Description of drawings:
Fig. 1 is the utility model patent structure figure;
Fig. 2 is the utility model patent heating tube cutaway view.
The specific embodiment:
As shown in the figure, the isothermal thermal field electric heater of interior radiation is made up of terminal box 1, process flange 2, heating tube 3, container 4, gripper shoe 5, over-temperature sensor 6, heat generating component; Heating tube 3 links to each other with terminal box 1, and terminal box 1 is provided with cable access 7, fills nitrogen mouth 8, and nitrogen filled protection can increase the service life; It is fixing that 3 of heating tubes are installed gripper shoe 5; On heating tube 3 outer walls, be provided with over-temperature sensor 6; Heating tube 3 and 2 welding of process flange, and insert in the container 4, heating tube 3 adopts the steel pipe of diameter 50mm-76mm, wall thickness 3-6mm; Major diameter, the structure of heavy wall can make the corrosion resistance of heating tube 3 stronger; Insert heat generating component in the heating tube 3; Heat generating component by ceramic supporting element 9, heating wire 10, cold junction draw rod 11, terminals 12, fiber thermal insulation board 13 are formed; Cold junction draws rod 11 1 ends and is provided with terminals 12, and cold junction draws rod 11 and passes fiber thermal insulation board 13 and connect heating wire 10 at the other end, is provided with ceramic supporting element 9 in the heating tube 3; Can bear the pressure of 430bar and 850 ℃ temperature, be applicable to explosion-proof occasion; Heating wire 10 according to the flow direction of medium from close silk to rare layout, it is more reasonable to make in the heating tube 3 that temperature fields distribute, cold medium can access more heats, the medium after the heating can not corrode heating tube 3 walls because of too much heat yet; Change heating tube 3 like need, can process flange 2 be extracted out, do not need the emptying medium, the scene replacing heating element heater of can loosing core is convenient for changing.
This patent have high temperature high voltage resistant, corrosion resistance good, be convenient to change, be applicable to advantage such as explosion-proof occasion, have great promotional value.

Claims (3)

1. the isothermal thermal field electric heater of interior radiation is made up of terminal box, process flange, heating tube, container, gripper shoe, over-temperature sensor, heat generating component; It is characterized in that: heating tube links to each other with terminal box, and terminal box is provided with cable access, fills the nitrogen mouth; Gripper shoe is installed between heating tube fixes, on the heating tube outer wall, be provided with over-temperature sensor, heating tube and the welding of process flange, and insert in the container; Insert heat generating component in the heating tube.
2. the isothermal thermal field electric heater of radiation in according to claim 1 is characterized in that: described heat generating component draws rod, terminals, fiber thermal insulation board by ceramic supporting element, heating wire, cold junction and forms; Cold junction draws an excellent end and is provided with terminals, and cold junction draws rod and passes the fiber thermal insulation board and connect heating wire at the other end, heating wire according to the flow direction of medium from close silk to rare layout, be provided with ceramic supporting element in the heating tube.
3. the isothermal thermal field electric heater of radiation in according to claim 1 is characterized in that: described heating tube adopts the steel pipe of diameter 50mm-76mm, wall thickness 3-6mm.
CN 201220232709 2012-05-23 2012-05-23 Internal radiation isothermal electric heater of thermal field Expired - Lifetime CN202598859U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220232709 CN202598859U (en) 2012-05-23 2012-05-23 Internal radiation isothermal electric heater of thermal field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220232709 CN202598859U (en) 2012-05-23 2012-05-23 Internal radiation isothermal electric heater of thermal field

Publications (1)

Publication Number Publication Date
CN202598859U true CN202598859U (en) 2012-12-12

Family

ID=47316392

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220232709 Expired - Lifetime CN202598859U (en) 2012-05-23 2012-05-23 Internal radiation isothermal electric heater of thermal field

Country Status (1)

Country Link
CN (1) CN202598859U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105636254A (en) * 2016-03-16 2016-06-01 华能无锡电热器材有限公司 Electric heater for industrial process
CN105848318A (en) * 2016-05-11 2016-08-10 镇江东方电热有限公司(中外合资) Direct resistance type electric heater
CN109429386A (en) * 2017-08-24 2019-03-05 江苏威能电气有限公司 A kind of anticorrosive heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105636254A (en) * 2016-03-16 2016-06-01 华能无锡电热器材有限公司 Electric heater for industrial process
CN105636254B (en) * 2016-03-16 2018-10-26 华能无锡电热器材有限公司 industrial process electric heater
CN105848318A (en) * 2016-05-11 2016-08-10 镇江东方电热有限公司(中外合资) Direct resistance type electric heater
CN109429386A (en) * 2017-08-24 2019-03-05 江苏威能电气有限公司 A kind of anticorrosive heater

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20121212

CX01 Expiry of patent term
DD01 Delivery of document by public notice

Addressee: Huaneng Wuxi Electric Heating Equipment Co., Ltd. patent The person in charge

Document name: Notice of Patent Expiration and Termination

DD01 Delivery of document by public notice