CN206989707U - A kind of TFE pyrolysis furnaces for industrial chemicals - Google Patents
A kind of TFE pyrolysis furnaces for industrial chemicals Download PDFInfo
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- CN206989707U CN206989707U CN201720982690.4U CN201720982690U CN206989707U CN 206989707 U CN206989707 U CN 206989707U CN 201720982690 U CN201720982690 U CN 201720982690U CN 206989707 U CN206989707 U CN 206989707U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model discloses a kind of TFE pyrolysis furnaces for industrial chemicals, including body of heater and boiler tube, boiler tube is in body of heater, the top of body of heater is provided with escape pipe, the bottom of body of heater is provided with air inlet, supporting plate is longitudinally respectively equipped with body of heater, dividing plate and deflector, heat exchange cavity is formed between supporting plate and dividing plate, boiler tube is successively arranged in heat exchange chamber body, air-vent is evenly distributed with supporting plate, dividing plate is provided with passage, heat-insulated cavity is formed between dividing plate, heat-insulated cavity is between heat exchange cavity, deflector is located in heat-insulated cavity, deflector is interspersed, holding tank is equipped with the top surface of deflector and bottom surface, absorption carrier is provided with holding tank.The utility model is simple in construction, and the thermal efficiency is high, and heat loss is few, and heat-transfer effect is good, effectively absorbs the harmful substance in high-temperature flue gas, reduces pollution.
Description
Technical field
The utility model belongs to chemical field, more particularly to a kind of TFE pyrolysis furnaces for industrial chemicals.
Background technology
For chemical industry, especially TFE devices, pyrolysis furnace has very important status.Only pass through pyrolysis furnace pair
Raw material is cracked, and follow-up system could carry out corresponding technological operation.In the pyrolysis furnace that current domestic production uses, generally
It is divided into following two, a kind of is the pyrolysis furnace using electric power as the energy, and another kind is the pyrolysis furnace using fuel oil as the energy, and they are in stone
The industries such as oil, chemical industry are used widely, but all there was only a single cracking furnace pipe in both pyrolysis furnaces, and high-temperature gas is not
It is directly to carry out heat exchange with cracking furnace pipe, but is introduced between furnace wall and refractory brick, cracking furnace pipe utilizes refractory brick
Heat radiation mode absorbs energy, and the utilization rate of energy is relatively low, production cost is also very high, to enlarged reproduction, improves enterprise
Economic benefit brings difficulty, and high-temperature flue gas generally is waste combustion generation, inherently contains harmful substance, cracking reaction
Harmful substance can be produced to be mixed into high-temperature gas, cause follow-up exhaust-gas treatment workload to greatly increase.
Utility model content
The utility model purpose is solve above-mentioned technical problem present in prior art, there is provided it is former that one kind is used for chemical industry
The TFE pyrolysis furnaces of material, simple in construction, the thermal efficiency is high, and heat loss is few, and heat-transfer effect is good, effectively absorbs harmful in high-temperature flue gas
Material, reduce pollution.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：
A kind of TFE pyrolysis furnaces for industrial chemicals, including body of heater and boiler tube, boiler tube is in body of heater, the top of body of heater
Provided with escape pipe, the bottom of body of heater is provided with air inlet, it is characterised in that：Supporting plate, dividing plate are longitudinally respectively equipped with body of heater and is led
Flowing plate, forms heat exchange cavity between supporting plate and dividing plate, boiler tube is successively arranged in heat exchange chamber body, uniformly divided in supporting plate
Be furnished with air-vent, dividing plate is provided with passage, heat-insulated cavity is formed between dividing plate, heat-insulated cavity between heat exchange cavity,
Deflector is located in heat-insulated cavity, and deflector is interspersed, and holding tank, holding tank are equipped with the top surface of deflector and bottom surface
It is interior to be provided with absorption carrier；The pyrolysis furnace is simple in construction, and the thermal efficiency is high, and heat loss is few, and heat-transfer effect is good, effectively absorbs high-temperature flue gas
In harmful substance, reduce pollution.
Further, the inner top of body of heater is provided with pressing plate, and the center of pressing plate is provided with steam vent, steam vent connection escape pipe, pressure
Filter layer is provided between plate, pressing plate plays support fixation to filter layer, and flue gas enters in filter layer through steam vent, filter layer
The deleterious molecular being mixed into absorbable cracking process in flue gas so that flue gas is purified, and eliminates impurity, later stage exhaust-gas treatment
Time.
Further, one end of deflector is provided with welding base, and welding base is weldingly fixed on the inwall of body of heater, using welding
Fixed form, improves firmness of the welding base on the inboard wall of furnace body, deflector by welding base increase with body of heater
The contact area of wall, improve the stability of deflector.
Further, be provided with reinforcement between supporting plate and dividing plate, the setting of reinforcement on the one hand strengthen supporting plate with every
Bonding strength between plate, is mutually pind down, it is not easy to disengage, on the other hand play cushioning effect, when supporting plate or dividing plate by
After the impulsive force of air-flow, meeting indirect extrusion reinforcement, reinforcement produces the reaction force of resistance deformation, impulsive force is offset, from
And keep supporting plate, dividing plate stable, it will not deform upon, reliability is high.
Further, absorption carrier is zeolite granular, because zeolite rack-like lattice forms a large amount of ducts and hole, and is had very
Big specific surface area, thus have very strong adsorptivity, waste heat flue gas enters in heat-insulated cavity constantly to be contacted with absorption carrier, is adsorbed
Carrier can absorb the harmful substance adulterated in waste heat flue gas, arranged so as to reduce outside harmful substance, simplify later stage exhaust-gas treatment work
Sequence.
Further, the inwall of body of heater is provided with thermal insulation fire-resistant back boxing, and thermal insulation fire-resistant back boxing is light weight alumina refractory brick, and lightweight is high
The alumina content of aluminium refractory brick is more than 48%, has good thermal structure intensity and slag-resistant erosion performance, so as to effectively
Improve the structural strength of body of heater, heat-insulating property and increase the service life.
The utility model is by adopting the above-described technical solution, have the advantages that：
Between heat exchange cavity, high-temperature flue gas enters in body of heater heat-insulated cavity through air inlet in the utility model, by
Step rises, and enters through the air-vent in supporting plate in heat exchange chamber body, and high-temperature flue gas carries out heat exchange with boiler tube, and heat is by boiler tube
Raw material is passed to, cracking reaction occurs for raw material, and waste heat flue gas then enters in heat-insulated cavity through the passage on dividing plate, through deflector
Guide effect gradually rise, waste heat pools together again, and deflector is interspersed, and extends the residence time of waste heat flue gas,
Ensure that mixing is abundant, waste heat flue gas enters after heat exchange cavity carries out heat exchange with boiler tube again, improves the utilization rate of energy；
Waste heat flue gas enters in heat-insulated cavity constantly to be contacted with the absorption carrier of baffle surface, and absorption carrier will can be mixed in waste heat flue gas
Miscellaneous harmful substance absorbs, and is arranged so as to reduce outside harmful substance, simplifies later stage exhaust-gas treatment process；High-temperature flue gas is flowing through hot friendship
During changing cavity and heat-insulated cavity, circulation area converts, and changes its flow velocity, and the agitation for enhancing high-temperature flue gas is made
With enhancing heat-transfer effect, so as to improve the thermal efficiency of body of heater, reduce heat loss.The utility model is simple in construction, the thermal efficiency
Height, heat loss is few, and heat-transfer effect is good, effectively absorbs the harmful substance in high-temperature flue gas, reduces pollution.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural representation of TFE pyrolysis furnaces for industrial chemicals of the utility model；
Fig. 2 is the structural representation of deflector in the utility model；
Fig. 3 is the structural representation that supporting plate connects with dividing plate in the utility model.
In figure：1- bodies of heater；2- boiler tubes；3- escape pipes；4- air inlets；5- thermal insulation fire-resistant back boxings；6- supporting plates；7- dividing plates；
8- deflectors；9- heat exchange cavitys；10- air-vents；11- passages；12- heat-insulated cavities；13- holding tanks；14- absorption carriers；
15- reinforcements；16- welding bases；17- pressing plates；18- steam vents；19- filter layers.
Embodiment
As shown in Figure 1 to Figure 3, it is a kind of TFE pyrolysis furnaces for industrial chemicals of the utility model, including body of heater 1 and stove
Pipe 2, the top of body of heater 1 are provided with escape pipe 3, and the bottom of body of heater 1 is provided with air inlet 4, high-temperature flue gas bottom in and top out, contact area
Greatly, heat-transfer effect is good.The inwall of body of heater 1 is provided with thermal insulation fire-resistant back boxing 5, and thermal insulation fire-resistant back boxing 5 is light weight alumina refractory brick, lightweight
The alumina content of alumina firebrick is more than 48%, has good thermal structure intensity and slag-resistant erosion performance, so as to have
Imitate the structural strength for improving body of heater 1, heat-insulating property and increase the service life.Supporting plate 6, dividing plate 7 are longitudinally respectively equipped with body of heater 1
With deflector 8, heat exchange cavity 9 is formed between supporting plate 6 and dividing plate 7, boiler tube 2 is successively arranged in heat exchange cavity 9, support
Air-vent 10 is evenly distributed with plate 6, dividing plate 7 is provided with passage 11, heat-insulated cavity 12, heat-insulated cavity are formed between dividing plate 7
12 between heat exchange cavity 9, and deflector 8 is located in heat-insulated cavity 12, and deflector 8 is interspersed, the top surface of deflector 8 and
Holding tank 13 is equipped with bottom surface, is provided with absorption carrier 14 in holding tank 13, absorption carrier 14 is zeolite granular, due to zeolite frame
Shape lattice forms a large amount of ducts and hole, and has very big specific surface area, thus has very strong adsorptivity, and waste heat flue gas enters
Constantly being contacted with absorption carrier 14 in heat-insulated cavity 12, absorption carrier 14 can absorb the harmful substance adulterated in waste heat flue gas,
Arranged so as to reduce outside harmful substance, simplify later stage exhaust-gas treatment process.
Be provided with reinforcement 15 between supporting plate 6 and dividing plate 7, the setting of reinforcement 15 on the one hand strengthen supporting plate 6 with every
Bonding strength between plate 7, is mutually pind down, it is not easy to disengage, on the other hand play cushioning effect, when supporting plate 6 or dividing plate 7 by
To after the impulsive force of air-flow, meeting indirect extrusion reinforcement 15, reinforcement 15 produces the reaction force of resistance deformation, and impulsive force is supported
Disappear, so as to keep supporting plate 6, the stabilization of dividing plate 7, will not deform upon, reliability is high.One end of deflector 8 is provided with welding base 16,
Welding base 16 is weldingly fixed on the inwall of body of heater 1, using the fixed form of welding, is improved welding base 16 and is arranged on body of heater 1
Firmness on inwall, deflector 8 are increased the contact area with the inwall of body of heater 1 by welding base 16, improve deflector 8
Stability.The inner top of body of heater 1 is provided with pressing plate 17, and the center of pressing plate 17 is provided with steam vent 18, and steam vent 18 connects escape pipe 3,
Filter layer 19 is provided between pressing plate 17, pressing plate 17 plays support fixation to filter layer 19, and flue gas entered through steam vent 18
In filtering layer 19, filter layer 19 can absorb the deleterious molecular being mixed into cracking process in flue gas so that flue gas is purified, and is eliminated
Impurity, exhaust-gas treatment time in later stage.
For heat-insulated cavity 12 between heat exchange cavity 9, high-temperature flue gas enters body of heater 1 through air inlet 4 in the utility model
It is interior, gradually rise, enter through the air-vent 10 in supporting plate 6 in heat exchange cavity 9, high-temperature flue gas carries out heat exchange with boiler tube 2,
Heat passes to raw material by boiler tube 2, and cracking reaction occurs for raw material, and waste heat flue gas then enters insulation through the passage 11 on dividing plate 7
In cavity 12, the guide effect through deflector 8 gradually rises, and waste heat pools together again, and deflector 8 is interspersed, and extends
The residence time of waste heat flue gas, ensure that mixing is abundant, waste heat flue gas carries out hot friendship with boiler tube 2 again after entering heat exchange cavity 9
Change, improve the utilization rate of energy；Waste heat flue gas enters the not disconnecting of absorption carrier 14 with the surface of deflector 8 in heat-insulated cavity 12
Touch, absorption carrier 14 can absorb the harmful substance adulterated in waste heat flue gas, be arranged so as to reduce outside harmful substance, the simplified later stage gives up
Gas disposal process；During heat exchange cavity 9 and heat-insulated cavity 12 is flowed through, circulation area converts high-temperature flue gas, changes
Its flow velocity is become, has enhanced the agitaion of high-temperature flue gas, enhance heat-transfer effect, so as to improve the thermal efficiency of body of heater 1, reduced
Heat loss.The utility model is simple in construction, and the thermal efficiency is high, and heat loss is few, and heat-transfer effect is good, effectively absorbs having in high-temperature flue gas
Evil material, reduces pollution.
In order to improve the operational capacity of pyrolysis furnace, high temperature resistant, short residence time and low partial pressure should be met when designing boiler tube 2
Requirement, therefore the material of boiler tube 2 is very crucial.The control of wherein C content and alloying element content is even more important.In high temperature work
Under condition, the low molecular hydrocarbon in raw material is easy to be cracked into coke, or is attached on the inwall of boiler tube 2, or is washed away by air-flow,
Take in upstream device.If boiler tube 2 uses common high temperature resistant steel pipe, C is easily penetrated into metallic matrix, destroys base
Body crystal boundary, so that the inner-wall material of boiler tube 2 becomes fragile because of carbonization, failed.Boiler tube 2 in the utility model is dissolved from GH3030
Enhanced type high temperature alloy, GH3030 control C content in a relatively low level, it is therefore an objective to boiler tube 2 is had more preferable elongation percentage
In favor of the deformation of boiler tube 2 at high temperature, the rolling mill practice of boiler tube 2 is also beneficial to.If GH3030 phosphorus content is higher, then
Eutectic carbide in material will be in rolling extrusion process collapse, and has a large amount of carbide not being dissolved to remain in final solid solution
Remainder is come, and the crystal grain that suppressing enhancing creep strength needs is grown up and turns into fine grain structure, therefore the creep for reducing material is strong
Degree.Therefore it is necessary to the coarsening of material structure is promoted by the solid solubility during content for lowering C to final solid solubility temperature.
The alloying element content of GH3030 solution strengthening type high temperature alloys is shown in Table 1：
The alloying element content of the GH3030 solution strengthening type high temperature alloys of table 1
Contain substantial amounts of Cr in GH3030 by can be seen that in table, it is therefore an objective to make boiler tube 2 that there is more preferable carburization resistance and resist
Oxidisability.Cr forms one layer of fine and close CrO2 oxide-film in oxidizing process, can prevent C infiltration well.
Such as the thermal conductivity that table 2 is GH3030 solution strengthening type high temperature alloys：
| Temperature/DEG C | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 |
| Thermal conductivity/(W/ (m DEG C)) | 15.1 | 16.3 | 18.0 | 19.3 | 20.9 | 22.2 | 23.4 | 25.1 | 26.4 |
The thermal conductivity of the GH3030 solution strengthening type high temperature alloys of table 2
Such as the specific heat capacity that table 3 is GH3030 solution strengthening type high temperature alloys：
| Temperature/DEG C | 150 | 200 | 300 | 400 | 500 | 600 |
| Specific heat capacity/(J/ (kgK)) | 565.2 | 598.7 | 674.1 | 741.1 | 820.6 | 971.3 |
The specific heat capacity of the GH3030 solution strengthening type high temperature alloys of table 3
This material can be seen that when being used as 2 tubing of boiler tube by table 2 and table 3, after operating temperature is warming up to, material is led
Heating rate and specific heat capacity, which have, largely to be raised, and this plays the role of larger for energy-saving in TFE production processes.
Such as the linear expansion coefficient that table 4 is GH3030 solution strengthening type high temperature alloys：
The linear expansion coefficient of the GH3030 solution strengthening type high temperature alloys of table 4
Found out by table 4, when this material is as 2 tubing of boiler tube, heating need from low-temperature condition with slower programming rate,
The heating curve slowly risen can just reduce the expansion numerical value of boiler tube 2, otherwise the expansion numerical value of boiler tube 2 is big, the destruction to pyrolysis furnace
Property is with regard to big.
It is exactly the heat loss for reducing cracking furnace body 1 to improve one of important channel of cracking furnace thermal efficiency.Therefore boiler tube 2 is protected
The selection of adiabator is particularly important.The partial structurtes of boiler tube 2 in the utility model get rid of silk and contain zirconium from silk fiber containing zirconium is got rid of
Fiber is to add a certain proportion of zirconium dioxide (ZrO in aluminosilicate property synthesizes powder2), to improve the starting of glassy state fiber
Recrystallization temperature, suppress the grain growth of crystallization, so that fiber temperature in use reaches more than 1350 DEG C.It is main to get rid of silk fiber containing zirconium
Used in filling up at the seam gaps of the ceramic part containing zirconium, preferably to provide high heat preservation performance for pyrolysis furnace.
Specific embodiment of the utility model is these are only, but the technical characteristics of the utility model is not limited thereto.Appoint
How based on the utility model, to solve essentially identical technical problem, essentially identical technique effect is realized, it is made
Simple change, equivalent substitution or modification etc., are all covered by among the scope of protection of the utility model.
Claims (6)
1. a kind of TFE pyrolysis furnaces for industrial chemicals, including body of heater and boiler tube, the boiler tube is described in the body of heater
The top of body of heater is provided with escape pipe, and the bottom of the body of heater is provided with air inlet, it is characterised in that：Longitudinal direction is set respectively in the body of heater
There are supporting plate, dividing plate and deflector, heat exchange cavity is formed between the supporting plate and the dividing plate, the boiler tube is successively arranged
In the heat exchange chamber body, air-vent is evenly distributed with the supporting plate, the dividing plate is provided with passage, the dividing plate
Between form heat-insulated cavity, for the heat-insulated cavity between the heat exchange cavity, the deflector is located at the incubation cavity
In vivo, the deflector is interspersed, and holding tank is equipped with the top surface of the deflector and bottom surface, is provided with the holding tank
Absorption carrier.
A kind of 2. TFE pyrolysis furnaces for industrial chemicals according to claim 1, it is characterised in that：The body of heater it is interior
Top is provided with pressing plate, and the center of the pressing plate is provided with steam vent, and the steam vent connects the escape pipe, set between the pressing plate
There is filter layer.
A kind of 3. TFE pyrolysis furnaces for industrial chemicals according to claim 1, it is characterised in that：The deflector
One end is provided with welding base, and the welding base is weldingly fixed on the inwall of the body of heater.
A kind of 4. TFE pyrolysis furnaces for industrial chemicals according to claim 1, it is characterised in that：The supporting plate with
Reinforcement is provided between the dividing plate.
A kind of 5. TFE pyrolysis furnaces for industrial chemicals according to claim 1, it is characterised in that：The absorption carrier
For zeolite granular.
A kind of 6. TFE pyrolysis furnaces for industrial chemicals according to claim 1, it is characterised in that：The body of heater it is interior
Wall is provided with thermal insulation fire-resistant back boxing, and the thermal insulation fire-resistant back boxing is light weight alumina refractory brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982690.4U CN206989707U (en) | 2017-08-07 | 2017-08-07 | A kind of TFE pyrolysis furnaces for industrial chemicals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982690.4U CN206989707U (en) | 2017-08-07 | 2017-08-07 | A kind of TFE pyrolysis furnaces for industrial chemicals |
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| CN206989707U true CN206989707U (en) | 2018-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112078242A (en) * | 2020-09-08 | 2020-12-15 | 郑州兴中塑料彩印有限公司 | Energy-saving hot air circulating system for printing machine |
-
2017
- 2017-08-07 CN CN201720982690.4U patent/CN206989707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112078242A (en) * | 2020-09-08 | 2020-12-15 | 郑州兴中塑料彩印有限公司 | Energy-saving hot air circulating system for printing machine |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230914 Address after: 324004 Juhua Group, Kecheng District, Quzhou City, Zhejiang Province Patentee after: ZHEJIANG JUSHENG FLUOROCHEMICAL CO.,LTD. Patentee after: ZHEJIANG ENGINEERING DESIGN Co.,Ltd. Address before: 324004 Juhua Group Co., Ltd. Kecheng District, Quzhou City, Zhejiang Province Patentee before: ZHEJIANG JUSHENG FLUOROCHEMICAL CO.,LTD. |
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| TR01 | Transfer of patent right |