CN2442997Y - Electric heating cracking furnace - Google Patents

Electric heating cracking furnace Download PDF

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Publication number
CN2442997Y
CN2442997Y CN 00231677 CN00231677U CN2442997Y CN 2442997 Y CN2442997 Y CN 2442997Y CN 00231677 CN00231677 CN 00231677 CN 00231677 U CN00231677 U CN 00231677U CN 2442997 Y CN2442997 Y CN 2442997Y
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CN
China
Prior art keywords
heater
pyrolyzer
tile
vertical
movable body
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 - Fee Related
Application number
CN 00231677
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Chinese (zh)
Inventor
刘一峰
谈钟骏
董令文
吴梅英
张宝兰
郑泽恒
牟奇友
安翠玲
肖青
施玲
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.)
Beijing Chemical Research Institute Chin
China Petrochemical Corp
Original Assignee
Beijing Chemical Research Institute Chin
China Petrochemical Corp
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.)
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Publication date
Application filed by Beijing Chemical Research Institute Chin, China Petrochemical Corp filed Critical Beijing Chemical Research Institute Chin
Priority to CN 00231677 priority Critical patent/CN2442997Y/en
Application granted granted Critical
Publication of CN2442997Y publication Critical patent/CN2442997Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides an electric heating cracking furnace with high efficiency. A furnace body of the cracking furnace is composed of a fixed furnace body and a movable furnace body. Temperature in the furnace can be neatly and conveniently controlled and regulated by the measures that a plurality of furnace tiles and spacing strips are arranged in vertical direction, etc. Trouble positions of the cracking furnace can be rapidly and accurately detected when the interior of the cracking furnace is maintained; consequently, the trouble positions are maintained. The cracking furnace has the characteristics of fast temperature rise and favorable thermal insulating performance when used. The utility model is a cracking furnace with low consumption and high benefit.

Description

A kind of electrically heated pyrolyzer
The utility model relates to a kind of process furnace, and specifically, the utility model relates to a kind of efficient electrically heated pyrolyzer.
Chinese patent 89211345 discloses the dual insulation window of a kind of industrial furnace door structure, and this utility model is a kind of industry kiln, the dual insulation window of stove door structure.Comprise original iron-clad fire door and improve after the fire door window, the lightweight viewable hole plug is formed dual insulation window door structure.Window is made by high-strength light fire resistant heat preserving special shaped brick; Viewable hole plug is fibrous by soft common pure aluminium silicate and high aluminum silicate.The window district heat waste of this utility model significantly reduces, and energy-conservation reaching about 75% can make whole stove surface heat waste descend about 25%.Be applicable to long-term operation continuously, industry kiln, stove that the short-term gap is observed, the particularly large-scale oil ethane cracking furnace that more window fire door is arranged.
Chinese patent 95242341 discloses a kind of chemical gases electrical heater, and this utility model is a kind of chemical gases electrical heater, belongs to technical field of chemical.This stove is made up of body of heater shell, shell thermal insulation layer, furnace core body, gas interface, and furnace core body is made up of sealing cover, metal tank bracket, partiting thermal insulation supporting component, nichrome wire, terminal stud.Because furnace core body has increased the supporting structure of nichrome wire, the density of laying nichrome wire can be bigger, and thermo-efficiency is also higher, can make monoblock type, detachable, and its interchangeability is better, is convenient to installation and maintenance.Also can enlarge furnace volume by strengthening the nichrome wire diameter, be that a kind of volume is little, the chemical gases electrothermal oven of less energy consumption.
Improvement to pyrolyzer in the prior art mainly is door structure and insulating layer of furnace body, and purpose reduces calorific loss exactly, improves the thermo-efficiency of pyrolyzer.Structure for body of heater itself is not significantly improved, and this has just caused the replacing of the inside maintenance of existing pyrolyzer and internal unit all comparatively difficult.Because the performance of the partiting thermal insulation material in the existing pyrolyzer is not very good, make the thermo-efficiency of present electric heating pyrolyzer not high simultaneously, the weight of whole electric heating pyrolyzer is also heavier, and its lagging material is crisp frangible, is unfavorable for the maintenance of pyrolyzer.In addition, the adjusting for temperature in the pyrolyzer in the prior art mainly is to realize that by the diameter that changes nichrome wire this regulative mode is not only cumbersome, and the regulation range of its temperature is also little.
The purpose of this utility model is to overcome above-mentioned shortcoming of the prior art, and a kind of efficient electrically heated pyrolyzer is provided.The characteristics that this pyrolyzer has is easy to maintenance, calorific loss is little, can flexible control Heating temperature are pyrolyzer of a kind of low consumption, high benefit.
To describe efficient electrically heated pyrolyzer described in the utility model and the application of lagging material in this pyrolyzer thereof below in detail.
Efficient electrically heated pyrolyzer described in the utility model comprises piping and body of heater.
Wherein said body of heater comprises fixedly body of heater and movable body of heater.
Wherein said piping comprises into the material collecting tubule when in parallel, goes out material collecting tubule and vertical U-shaped boiler tube when its arrangement mode; When being series connection, its arrangement mode of piping only forms by vertical U-shaped boiler tube.
One or more groups vertical U-shaped boiler tube can be set in the pyrolyzer body of heater.The arrangement mode of piping can also can adopt arranged in series for being arranged in parallel.When its piping arrangement mode of pyrolyzer is parallel connection, treat that the cracked material advances to enter the material collecting tubule the vertical U-shaped boiler tubes of many groups from pyrolyzer, directly gets back to pyrolyzer from many groups of vertical U-shaped boiler tubes again and goes out the material collecting tubule; Vertical U-shaped boiler tube is clipped in movable body of heater and fixedly heats in the middle of the body of heater.When its piping arrangement mode of pyrolyzer is when series connection, face mutually to join end to end between the vertical U-shaped boiler tube, treat that the cracked material enters a vertical U-shaped boiler tube after, flow out through other vertical U-shaped boiler tubes that link to each other again; Treat that the vertical U-shaped boiler tube that the cracking material passes through is clipped in movable body of heater and the fixedly middle heating of body of heater.
When wherein pyrolyzer piping arrangement mode is in parallel, the cracking material in vertical U-shaped boiler tube is distributed uniformly, thereby guarantee that pyrolyzer can not influence the work-ing life of pyrolyzer owing to vertical U-shaped boiler tube local superheating; Can select to use the quantity of vertical U-shaped boiler tube according to actual needs simultaneously.When pyrolyzer piping arrangement mode is series connection, the vertical U-shaped boiler tubes of many groups can be set in the pyrolyzer, the vertical U-shaped boiler tube total length difference during each is organized also just can be used for the cracking under the different condition.
Efficient its body of heater of electrically heated pyrolyzer described in the utility model is a rectangular box, be made up of fixedly body of heater and movable body of heater, fixedly body of heater and movable body of heater have been formed one by the rectangular box of cutting open in the middle of the pyrolyzer body of heater length direction burner hearth longitudinal section.Wherein fixedly body of heater by frame fixation; Movable body of heater is realized moving of body of heater by roller.Can also when body of heater is shorter and smaller, can only use the roller of pyrolyzer bottom, and needn't use the roller of pyrolyzer furnace roof according to the size of body of heater, the number that weight is selected roller simultaneously.When the pyrolyzer works better, movable body of heater and fixedly the method for body of heater utilization routine for example link into an integrated entity by screw or bolt.In needs maintenance or when changing furnace interior spare, unclamp screw or bolt just can with movable body of heater and fixedly body of heater separate.
Its body of heater inside of efficient electrically heated pyrolyzer described in the utility model is equipped with two-layer lagging material.
Be a kind of in silicon carbide, polycrystalline mullite, the light weeight alumina brick wherein near the inner layer material of vertical U-shaped boiler tube; Described inner layer material both used as the tile of fixed resistor silk, also used as one deck lagging material.One row or multiple row tile are set in the pyrolyzer body of heater in the horizontal direction and one or more tile is set in vertical direction.Several row of horizontal grooves being set on every tile, being placed with the spirrillum resistive heater in the groove, is a resistance wire on each sheet tile, and the two ends up and down of resistance wire are guided to outside the stove, link to each other with power source bus.When heating, the resistance wire on each sheet tile forms an independently loop.In the pyrolyzer body of heater, place the multi-disc tile, help convenient, flexible as required control and attemperation.As required, some vertical spacer bars can also be set in pyrolyzer, will be divided into one or several heating zone in the stove.
Be a kind of in aluminum silicate fiber, calcium silicate board, slag wool, the high alumina Nomex wherein near the cladding material on pyrolyzer surface.Wherein said cladding material also can be made the subassembly of moulding according to the shape of tile.
Being connected between inner layer material described in the utility model, cladding material and the body of heater shell can adopt conventional method to connect.
Polycrystalline mullite described in the utility model is used for pyrolyzer internal layer lagging material, not only reduced the weight of pyrolyzer lagging material greatly, help pyrolyzer is separated maintenance, and the existing lagging material of its heat-insulating property, also be greatly improved.
Efficient electrically heated pyrolyzer described in the utility model is applicable to the middle-size and small-size positive and negative cracker of depressing gas or liquid.
Compared with prior art, the utlity model has following beneficial effect:
1. pyrolyzer body of heater of the present utility model adopts movable connection, and body of heater comprises fixedly body of heater and movable body of heater; When needing repairing, can be easily fixedly body of heater and movable body of heater be separated, so that the cracking furnace interior is keeped in repair; In addition,, the gross weight of pyrolyzer is greatly reduced, can use moving of roller realization activity easily body of heater owing to used light-weight internal insulation material.
2. internal layer lagging material described in the utility model is provided with the polylith tile in vertical direction, and each piece tile all forms independently current circuit, regulating and controlling Heating temperature that can be flexible; Simultaneously when the cracking furnace interior is keeped in repair, can detect the trouble location of pyrolyzer quickly and accurately, thereby keep in repair, also only need the removable parts resistance wire during maintenance, and then prolonged the work-ing life of whole pyrolyzer.
3. the heat-up rate that the light heat insulation material that pyrolyzer described in the utility model adopts can make pyrolyzer have pyrolyzer in use now is greatly accelerated, the furnace drying time of pyrolyzer shortens greatly, can directly come into operation without baker in the ordinary course of things.
4. its excellent insulating performance of light heat insulation material that pyrolyzer described in the utility model adopts greatly reduces the temperature of pyrolyzer outside surface, when the temperature in the pyrolyzer stove reaches 1000 ℃, the temperature of its body of heater outside surface can be lower than 40 ℃, the production safety that not only helps cracking process has reduced the energy consumption of pyrolyzer simultaneously.
5. no matter pyrolyzer described in the utility model adopts under in parallel or the placed in-line situation at it, all can select to treat that the cracking material is by the particular location of vertical U-shaped boiler tube and the vertical U-shaped boiler tube quantity of passing through according to practical situation, for different situations different selection modes can be arranged, make the range of application of pyrolyzer more extensive undoubtedly.
Below, will further describe efficient electrically heated pyrolyzer described in the utility model in conjunction with the accompanying drawings.
The front schematic view that Fig. 1 is its piping arrangement mode of pyrolyzer described in the utility model when in parallel.
The side schematic view that Fig. 2 is its piping arrangement mode of pyrolyzer described in the utility model when in parallel.
Front schematic view when Fig. 3 is its piping arrangement mode of pyrolyzer described in the utility model for series connection.
When its piping arrangement mode of pyrolyzer is parallel connection, treat that the cracked material advances material collecting tubule 1 by pyrolyzer and enters in the vertical U-shaped boiler tube 11 of many groups, directly get back to pyrolyzer from vertical U-shaped boiler tube 11 again and go out the material collecting tubule 12; Vertical U-shaped boiler tube 11 is clipped in movable body of heater 2 and fixedly heats in the middle of the body of heater 3.Movable body of heater 2 rolls on furnace roof track 5, furnace bottom track 7 by furnace roof roller 4, furnace bottom roller 6 when needing repairing, and separates with fixing body of heater 3.The intravital internal layer lagging material of stove is provided with number row groove, be placed with spirrillum resistive heater 8 in the groove, be provided with outer lagging material 9 in the outside of internal layer lagging material, can also be provided with vertical parting bead 10 in the inside of pyrolyzer body of heater simultaneously, can will be divided into a plurality of heating zone in the stove.
When its piping arrangement mode of pyrolyzer is when series connection, face mutually to join end to end between the vertical U-shaped boiler tube 11, treat that the cracked material enters a vertical U-shaped boiler tube after, flow out through other vertical U-shaped boiler tubes that link to each other again.

Claims (8)

1. an electrically heated pyrolyzer comprises piping and body of heater; It is characterized in that,
Described pyrolyzer body of heater comprises fixedly body of heater [3] and movable body of heater [2];
Wherein said piping comprises into material collecting tubule [1] when in parallel, goes out material collecting tubule [12] and vertical U-shaped boiler tube [11] when its arrangement mode; When being series connection, its arrangement mode of piping only forms by vertical U-shaped boiler tube [11];
Wherein said fixedly body of heater [3] is by frame fixation; Described movable body of heater [2] uses roller to realize that it moves.
2. pyrolyzer according to claim 1 is characterized in that, its movable body of heater [2] of described pyrolyzer and fixedly body of heater [3] inside two-layer lagging material is installed;
Wherein inner layer material is a kind of in silicon carbide, polycrystalline mullite, the light weeight alumina brick, and both the tile as the fixed resistor silk uses, and also uses as one deck lagging material;
Wherein cladding material is a kind of in aluminum silicate fiber, calcium silicate board, slag wool, the high alumina Nomex.
3. pyrolyzer according to claim 2 is characterized in that, described inner layer material is provided with row or a multiple row tile and one or more tile is set in vertical direction in the horizontal direction.
4. pyrolyzer according to claim 3, it is characterized in that, vertical U-shaped boiler tube is provided with horizontal channel in described tile upper edge, be placed with spirrillum resistive heater [8] in the groove, the two ends of resistance wire are guided to outside the stove on each sheet tile, link to each other with power source bus, each piece tile all forms independently current circuit.
5. pyrolyzer according to claim 1 is characterized in that, one or several vertical spacer bar [10] is set in described fixedly body of heater and the movable body of heater, and pyrolyzer is divided into one or several heating zone.
6. pyrolyzer according to claim 1 is characterized in that, described body of heater is a rectangular box.
7. pyrolyzer according to claim 1 is characterized in that, described fixedly body of heater [3] and movable body of heater [2] have been formed one by the rectangular box of cutting open in the middle of the pyrolyzer body of heater length direction burner hearth longitudinal section.
8. an electrically heated pyrolyzer comprises piping and body of heater; It is characterized in that,
Described pyrolyzer body of heater comprises fixedly body of heater [3] and movable body of heater [2]; Fixedly body of heater [3] is by frame fixation; Movable body of heater [2] uses roller to realize that it moves;
Wherein said piping comprises into material collecting tubule [1] when in parallel, goes out material collecting tubule [12] and vertical U-shaped boiler tube [11] when its arrangement mode; When being series connection, its arrangement mode of piping only forms by vertical U-shaped boiler tube [11];
Movable body of heater [2] and fixedly body of heater [3] inside two-layer lagging material is installed; Wherein inner layer material is a polycrystalline mullite, and both the tile as the fixed resistor silk used, and also used as one deck lagging material; Cladding material is an aluminum silicate fiber; Inner layer material is provided with row or a multiple row tile and one or more tile is set in vertical direction in the horizontal direction; The vertical U-shaped boiler tube in tile upper edge [11] is provided with horizontal channel, is placed with spirrillum resistive heater [8] in the groove, and the two ends of resistance wire are guided to outside the stove on each sheet tile, links to each other with power source bus, and each piece tile all forms independently current circuit; One or several vertical spacer bar [10] fixedly is set in body of heater and the movable body of heater, pyrolyzer is divided into one or several heating zone.
CN 00231677 2000-03-31 2000-03-31 Electric heating cracking furnace Expired - Fee Related CN2442997Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00231677 CN2442997Y (en) 2000-03-31 2000-03-31 Electric heating cracking furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00231677 CN2442997Y (en) 2000-03-31 2000-03-31 Electric heating cracking furnace

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CN2442997Y true CN2442997Y (en) 2001-08-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100348940C (en) * 2003-09-29 2007-11-14 中国石油化工股份有限公司 Valvular electrically heated furnace and application in catalyst carrier decomposition thereof
CN101968313A (en) * 2010-11-24 2011-02-09 茂名重力石化机械制造有限公司 Cylindrical tube type heating furnace capable of being assembled
CN112414134A (en) * 2020-11-24 2021-02-26 成都中建材光电材料有限公司 Constant temperature cracking furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100348940C (en) * 2003-09-29 2007-11-14 中国石油化工股份有限公司 Valvular electrically heated furnace and application in catalyst carrier decomposition thereof
CN101968313A (en) * 2010-11-24 2011-02-09 茂名重力石化机械制造有限公司 Cylindrical tube type heating furnace capable of being assembled
CN112414134A (en) * 2020-11-24 2021-02-26 成都中建材光电材料有限公司 Constant temperature cracking furnace

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20010815