CN103471114A - Catalytic combustion bed furnace body structure - Google Patents
Catalytic combustion bed furnace body structure Download PDFInfo
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- CN103471114A CN103471114A CN2013104544310A CN201310454431A CN103471114A CN 103471114 A CN103471114 A CN 103471114A CN 2013104544310 A CN2013104544310 A CN 2013104544310A CN 201310454431 A CN201310454431 A CN 201310454431A CN 103471114 A CN103471114 A CN 103471114A
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Abstract
The invention relates to a catalytic combustion bed furnace body structure. A furnace body inner peripheral plate is arranged in a furnace body outer peripheral plate; gas inlet paths and gas outlet paths are alternatively arranged between the furnace body inner peripheral plate and the furnace body outer peripheral plate; the inlet of each gas inlet path is arranged on an upper end plate; the outlet of each gas inlet path is arranged between a lower end plate and the furnace body inner peripheral plate; the inlet of each gas outlet path is arranged between the upper end plate and the furnace body inner peripheral plate; the outlet of each gas outlet path is arranged on the lower end plate; a gas inlet guide shield is arranged on the middle, corresponding to the inlet of a gas inlet shield, of the upper end plate; a burning gas guide shield is arranged under the middle of the upper end plate; a heater is arranged in the furnace body corresponding to the outlets of the gas inlet paths and is fixedly mounted on the furnace body outer peripheral plate; a gas outlet guide shield is arranged under the middle, corresponding to the outlet of a gas outlet shield, of the lower end plate. According to the catalytic combustion bed furnace body structure, the heat efficiency of the furnace body can be improved, the heat loss can be reduced, the heat recovery utilization rate can be improved, the temperature in the furnace body can be more even during combustion, and the burning efficiency and purifying rate are improved.
Description
Technical field
The invention belongs to catalytic combustion bed field, especially a kind of catalytic combustion pool furnace body structure.
Background technology
Problem of environmental pollution more and more is subject to people's attention, especially recently the haze weather frequently occurred, this noun of PM2.5 more and more is subject to people and pays close attention to, and process in PM2.5, people's health is endangered to maximum industrial volatile organic pollutants catalytic combustion bed just, catalytic combustion pool furnace body structure is made building enclosure by heat resisting steel sheet material or industrial furnace building material usually, in its existing furnace binding, inlet and outlet is located at the two ends up and down of furnace binding, although existing structure can be realized catalytic combustion, but there are the following problems: 1. the thermal losses of furnace binding own is large, the recuperation of heat utilization ratio is lower, 2. non-uniform temperature in furnace binding, totally be the centre temperature high, and the edge temperature is low, has reduced the industrial volatile organic pollutants efficiency of combustion, affects the purifying rate of catalytic combustion.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of catalytic combustion pool furnace body structure is provided, this furnace binding is arranged simply, design science rationally, effectively improves the thermal efficiency of furnace binding itself, reduce thermal losses, improve the recuperation of heat utilization rate, during burning, the interior temperature of furnace binding is more even, has improved efficiency of combustion and purifying rate.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of catalytic combustion pool furnace body structure, comprise airscoop shroud, body of heater and air leaving cover, the body of heater upper end is fixedly mounted with airscoop shroud, the body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise the body of heater peripheral board with and the bottom plate that is fixedly mounted with of the upper head plate that is fixedly mounted with of upper end and its lower end, it arranges coaming plate in a body of heater in the body of heater peripheral board, be arranged alternately air intake duct and gas off-take between coaming plate and body of heater peripheral board in body of heater, the import of air intake duct is arranged on upper head plate, the outlet of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet of gas off-take is arranged on bottom plate, be provided with the air inlet kuppe on the upper head plate middle part of corresponding airscoop shroud import, be provided with the combustion gas kuppe on below the upper head plate middle part, be provided with heater at air intake port in corresponding body of heater, this heater is packed on the body of heater peripheral board, be provided with the kuppe of giving vent to anger below the bottom plate middle part of corresponding air leaving cover outlet.
And described air inlet kuppe is positive rectangular pyramid structure, combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure.
And the quantity of described air intake duct and gas off-take is identical and evenly alternately be arranged in body of heater between coaming plate and body of heater peripheral board.
And, be provided with the explosion-proof relief mouth on described airscoop shroud.
And described air intake duct sectional area is greater than the gas off-take sectional area or the air intake duct sectional area equals the gas off-take sectional area.
And described air intake duct sectional area is less than the gas off-take sectional area.
And, described air intake duct adopt rectangular steel pipe and be arranged on the body of heater peripheral board with the interior coaming plate of body of heater between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides.
And described body of heater peripheral board cross section is rectangle or square or circular, in body of heater, the coaming plate cross section is rectangle or square or circular.
And described heater is the electric heating tube group.
And described air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, the gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.
Advantage of the present invention and beneficial effect are:
1, this catalytic combustion pool furnace body structure comprises airscoop shroud, body of heater and air leaving cover, the body of heater upper end is fixedly mounted with airscoop shroud, the body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise the body of heater peripheral board with and the bottom plate that is fixedly mounted with of the upper head plate that is fixedly mounted with of upper end and its lower end, it arranges coaming plate in a body of heater in the body of heater peripheral board, be arranged alternately air intake duct and gas off-take between coaming plate and body of heater peripheral board in body of heater, the import of air intake duct is arranged on upper head plate, the outlet of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet of gas off-take is arranged on bottom plate, air intake duct is set for this kind of over-over mode and gas off-take can be realized the even air inlet of catalytic combustion pool furnace body bottom surrounding, thereby the industrial volatile organic pollutants that makes to enter body of heater is attracted to the surface of cat ceramic carrier more uniformly, make the body of heater internal combustion even, high-temperature gas after burning refluxes downwards evenly by gas off-take, make the bottom of furnace body temperature-compensating even, overcome in prior art catalytic combustion pool furnace body centre temperature high, the uneven shortcoming of the low heating of edge temperature, efficiency of combustion and purifying rate have been improved.
2, be provided with the air inlet kuppe in this catalytic combustion pool furnace body structure on the upper head plate middle part of corresponding airscoop shroud import, be provided with the combustion gas kuppe on below the upper head plate middle part, be provided with heater at air intake port in corresponding body of heater, this heater is packed on the body of heater peripheral board, be provided with the kuppe of giving vent to anger below the bottom plate middle part of corresponding air leaving cover outlet, the air inlet kuppe is positive rectangular pyramid structure, combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure, this kind of structural design can effectively realize even air inlet, evenly burning, the VOCs gas uniform burnt enters gas off-take, effectively improve catalytic combustion bedside edge megadyne temperature degree, after entering into air leaving cover, evenly discharge, for realizing high burning efficiency and purifying rate, furnace binding lays the first stone.
3, in this catalytic combustion pool furnace body structure, heater adopts the electric heating tube group except the preheating in early stage for the catalysis flow process, is conducive in particular cases the auxiliary heating of catalytic combustion bed, and firing rate is fast, efficiency is high, be arranged on the air intake port position, be conducive to abundant burning, improve purifying rate.
4, this catalytic combustion pool furnace body structure adopts over-over mode that air intake duct and gas off-take are set, and effectively by the recycling of catalytic combustion heat, performs to ultimate attainment.Utilize catalyst combustion reaction heat to carry out preheating to the gas that enters the catalytic combustion bed.This warm is for belonging to countercurrent flow for the air-flow in the catalytic combustion bed, for the high temperature catalytic combustion tail gas flow through in the air flue formed by coaming plate in body of heater and body of heater peripheral board, belonging to the following current heat exchange, gas in air intake duct is heated on three directions, and make heat exchange unit to greatest extent near thermal source, reduce heat loss, improve heat exchange efficiency, to guarantee that the catalytic combustion bed reaches the catalysis initiation temperature at the stylish VOCs gas entered of normal combustion, contribute to maintain that catalyticing combustion process is stable carries out, reduce and even break away from the dependence to auxiliary electrical heater.
5, the high-temperature tail gas that in this catalytic combustion pool furnace body structure, catalytic combustion produces is along gas off-take, it is the process that the body of heater wall is back to catalytic combustion bed lower part outlet, the back feeding heating is carried out in catalytic combustion bedside edge zone, contribute to the maintenance of catalytic combustion bed ensemble temperature with even, impel catalytic combustion to be evenly distributed in whole catalytic combustion bed cross section, improve the catalytic combustion purifying rate, and form benign cycle thus, be beneficial to catalytic combustion and carry out continually and steadily.
6, be provided with a Catalyst packing door in this catalytic combustion pool furnace body structure on upper head plate, facilitated the replacing of catalytic combustion pool furnace body inner catalyst, improved production efficiency.
7, in this catalytic combustion pool furnace body structure, air intake duct can be different from the quantity of gas off-take, also can be identical, the air intake duct sectional area can equal the gas off-take sectional area, the air intake duct sectional area also can be greater than the gas off-take sectional area, the air intake duct sectional area can also be less than the gas off-take sectional area, determine different air intake ducts and the cross-section relation between gas off-take according to climate reasons, VOCs gas treatment amount and catalyst use amount, make it more adapt to the processing requirements of different situations.
8, in this catalytic combustion pool furnace body structure air intake duct adopt rectangular steel pipe and be arranged on the body of heater peripheral board with the interior coaming plate of body of heater between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides, this kind of mode design can effectively be reduced welding deformation in equipment Manufacture Process and thermal stress and the thermal deformation in the equipment use procedure, and minimizing steel use amount, reduce construction costs, for energy-saving and cost-reducing new design, reach processing requirements fully.
9, in this catalytic combustion pool furnace body structure, body of heater peripheral board cross section is rectangle or square or circular, in body of heater, the coaming plate cross section is rectangle or square or circular, the air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, and the gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.This kind of Structural Transformation mainly adapts to difform catalytic combustion bed profile, facilitates the design of various situations.
10, be provided with the explosion-proof relief mouth on airscoop shroud in this catalytic combustion pool furnace body structure, improved the security of furnace binding, prevent that security incident from occurring.
11, furnace binding of the present invention arranges that simple, design science rationally, effectively improves the thermal efficiency of furnace binding itself, reduces thermal losses, improves the recuperation of heat utilization rate, and during burning, the interior temperature of furnace binding is more even, has improved efficiency of combustion and purifying rate.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The axle that Fig. 2 is Fig. 1 cuts open figure;
The structural representation that Fig. 3 is body of heater of the present invention (omission heater);
The top view that Fig. 4 is Fig. 3;
The upward view that Fig. 5 is Fig. 3;
The stereogram that Fig. 6 is body of heater of the present invention (omitting kuppe and heater).
The specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of catalytic combustion pool furnace body structure, comprise airscoop shroud 3, body of heater 5 and air leaving cover 8, be provided with explosion-proof relief mouth 2 on airscoop shroud, the body of heater upper end is fixedly mounted with airscoop shroud, the body of heater lower end is fixedly mounted with air leaving cover, the airscoop shroud upper end arranges gas feed 1, the air leaving cover lower end arranges gas vent 9, body of heater comprise body of heater peripheral board 15 with and the bottom plate 7 that is fixedly mounted with of the upper head plate 4 that is fixedly mounted with of upper end and its lower end, it arranges coaming plate 14 in a body of heater in the body of heater peripheral board, be arranged alternately air intake duct 11 and gas off-take 18 between coaming plate and body of heater peripheral board in body of heater, the import 19 of air intake duct is arranged on upper head plate, the outlet 17 of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import 10 of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet 20 of gas off-take is arranged on bottom plate, be provided with air inlet kuppe 12 on the upper head plate middle part of corresponding airscoop shroud gas feed, be provided with combustion gas kuppe 13 on below the upper head plate middle part, be provided with heater 6 at air intake port in corresponding body of heater, this heater is packed on the body of heater peripheral board, this heater is the electric heating tube group, electric heating tube quantity can be determined according to actual conditions, be provided with the kuppe 16 of giving vent to anger below the bottom plate middle part of corresponding air leaving cover outlet, the air inlet kuppe is positive rectangular pyramid structure, combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure.The quantity of air intake duct and gas off-take is identical and evenly alternately be arranged in body of heater between coaming plate and body of heater peripheral board, air intake duct can be not identical with the quantity of gas off-take yet, described be arranged in body of heater the air intake duct in opposite between coaming plate and body of heater peripheral board and air intake duct can be one by one corresponding or air intake duct and gas off-take corresponding one by one, air intake duct shown in the present embodiment accompanying drawing 6 and gas off-take quantity are 20 and evenly alternately be arranged in body of heater between coaming plate and body of heater peripheral board, adopt air intake duct and gas off-take corresponding mode one by one, the air intake duct sectional area can equal the gas off-take sectional area, the air intake duct sectional area also can be greater than the gas off-take sectional area, the air intake duct sectional area can also be less than the gas off-take sectional area.For the air intake duct in energy-saving and cost-reducing this catalytic combustion pool furnace body structure adopts rectangular steel pipe and is arranged in body of heater peripheral board and body of heater between coaming plate, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides, body of heater peripheral board cross section is rectangle or square or circular, in body of heater, the coaming plate cross section is rectangle or square or circular, the air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, and the gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.
The present invention's VOCs gas in use enters through air inlet kuppe gas uniform and flows to the Fighter Inlet upper head plate from the import of airscoop shroud, arrive catalytic combustion pool furnace body below by inlet duct flow, meeting bottom plate stops to turn back and enters in catalytic combustion pool furnace body, aperture through heater and cat ceramic honeycomb substrate is burnt, the combustion gas kuppe that gas after burning meets the inversion rectangular pyramid structure below end plate evenly enters the air intake duct rectangle steel tube wall by the gas off-take both sides, the gas off-take that in body of heater peripheral board and body of heater, coaming plate surrounds, evenly flow out the air leaving cover outlet from the gas off-take outlet through the kuppe of giving vent to anger.
Actual motion compliance test result of the present invention: this new catalytic burning bed furnace binding in actual use, after conventional preheating, passes into VOCs gas, after catalytic combustion occurs, cuts off electrical heating.Within the VOCs gas concentration meets the period of minimum ignition concentration, realize self-sustaining burning fully, without any additional auxiliary thermal source, the catalyticing combustion process catalytic combustion bed tempertaure short time reaches 650 ℃, most time maintains between 350 ℃～450 ℃, and flameholding fluctuates less.The regional temperature instrumentation reading in three of catalytic combustion bed upper, middle and lower approaches, and uniformity of temperature profile is described, exit gas detects, and VOCs concentration, lower than 20ppm, illustrates that the catalytic combustion purifying rate has reached desirable level.
Claims (10)
1. a catalytic combustion pool furnace body structure, comprise airscoop shroud, body of heater and air leaving cover, the body of heater upper end is fixedly mounted with airscoop shroud, the body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise the body of heater peripheral board with and the bottom plate that is fixedly mounted with of the upper head plate that is fixedly mounted with of upper end and its lower end, it is characterized in that: coaming plate in a body of heater is set in the body of heater peripheral board, be arranged alternately air intake duct and gas off-take between coaming plate and body of heater peripheral board in body of heater, the import of air intake duct is arranged on upper head plate, the outlet of air intake duct is arranged between bottom plate and the interior coaming plate of body of heater, the import of gas off-take is arranged between upper head plate and the interior coaming plate of body of heater, the outlet of gas off-take is arranged on bottom plate, be provided with the air inlet kuppe on the upper head plate middle part of corresponding airscoop shroud import, be provided with the combustion gas kuppe on below the upper head plate middle part, be provided with heater at air intake port in corresponding body of heater, this heater is packed on the body of heater peripheral board, be provided with the kuppe of giving vent to anger below the bottom plate middle part of corresponding air leaving cover outlet.
2. catalytic combustion pool furnace body structure according to claim 1, it is characterized in that: described air inlet kuppe is positive rectangular pyramid structure, combustion gas kuppe and the kuppe of giving vent to anger are inverted positive rectangular pyramid structure.
3. catalytic combustion pool furnace body structure according to claim 1 is characterized in that: the quantity of described air intake duct and gas off-take is identical and evenly alternately be arranged in body of heater between coaming plate and body of heater peripheral board.
4. catalytic combustion pool furnace body structure according to claim 1, is characterized in that: be provided with the explosion-proof relief mouth on described airscoop shroud.
5. according to the described catalytic combustion pool furnace of claim 1 or 3 body structure, it is characterized in that: described air intake duct sectional area is greater than the gas off-take sectional area or the air intake duct sectional area equals the gas off-take sectional area.
6. according to the described catalytic combustion pool furnace of claim 1 or 3 body structure, it is characterized in that: described air intake duct sectional area is less than the gas off-take sectional area.
7. according to the described catalytic combustion pool furnace of claim 1 or 3 body structure, it is characterized in that: described air intake duct adopt rectangular steel pipe and be arranged on the body of heater peripheral board with the interior coaming plate of body of heater between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, body of heater peripheral board and the body of heater of its both sides.
8. catalytic combustion pool furnace body structure according to claim 1 is characterized in that: described body of heater peripheral board cross section is rectangle or square or circular, and in body of heater, the coaming plate cross section is rectangle or square or circular.
9. catalytic combustion pool furnace body structure according to claim 1, it is characterized in that: described heater is the electric heating tube group.
10. catalytic combustion pool furnace body structure according to claim 1, it is characterized in that: described air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, and the gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310454431.0A CN103471114B (en) | 2013-09-27 | 2013-09-27 | Catalytic combustion bed furnace body structure |
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| CN201310454431.0A CN103471114B (en) | 2013-09-27 | 2013-09-27 | Catalytic combustion bed furnace body structure |
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| CN103471114A true CN103471114A (en) | 2013-12-25 |
| CN103471114B CN103471114B (en) | 2015-07-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299888A (en) * | 2015-11-30 | 2016-02-03 | 东莞丰卓机电设备有限公司 | Modular negative-pressure high-efficient gas-fuel heater |
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| DE4444367A1 (en) * | 1994-12-14 | 1996-06-20 | Chemtec Leuna Ges Fuer Chemie | Fixed bed reactor for continuous exothermic reactions esp. for gas cleaning |
| JP2006281089A (en) * | 2005-03-31 | 2006-10-19 | Amano Corp | Apparatus for treating combustible voc gas |
| CN2916400Y (en) * | 2006-02-27 | 2007-06-27 | 福建方明钢铁有限公司 | Color-coated exhaust gas catalytic combustion device for use in color steel production line |
| CN201043752Y (en) * | 2007-04-17 | 2008-04-02 | 东莞泽龙线缆有限公司 | Catalytic combustor |
| CN101275744A (en) * | 2007-03-28 | 2008-10-01 | 中国科学院大连化学物理研究所 | Apparatus for comprehensively utilizing coal mine to ventilate mash gas |
| CN203517825U (en) * | 2013-09-27 | 2014-04-02 | 天津赛智科技发展有限公司 | Furnace structure of catalytic combustion bed |
-
2013
- 2013-09-27 CN CN201310454431.0A patent/CN103471114B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4444367A1 (en) * | 1994-12-14 | 1996-06-20 | Chemtec Leuna Ges Fuer Chemie | Fixed bed reactor for continuous exothermic reactions esp. for gas cleaning |
| JP2006281089A (en) * | 2005-03-31 | 2006-10-19 | Amano Corp | Apparatus for treating combustible voc gas |
| CN2916400Y (en) * | 2006-02-27 | 2007-06-27 | 福建方明钢铁有限公司 | Color-coated exhaust gas catalytic combustion device for use in color steel production line |
| CN101275744A (en) * | 2007-03-28 | 2008-10-01 | 中国科学院大连化学物理研究所 | Apparatus for comprehensively utilizing coal mine to ventilate mash gas |
| CN201043752Y (en) * | 2007-04-17 | 2008-04-02 | 东莞泽龙线缆有限公司 | Catalytic combustor |
| CN203517825U (en) * | 2013-09-27 | 2014-04-02 | 天津赛智科技发展有限公司 | Furnace structure of catalytic combustion bed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299888A (en) * | 2015-11-30 | 2016-02-03 | 东莞丰卓机电设备有限公司 | Modular negative-pressure high-efficient gas-fuel heater |
| CN105299888B (en) * | 2015-11-30 | 2018-01-05 | 东莞丰卓机电设备有限公司 | A kind of modularity sub-pressure high-efficient combustion heater |
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| CN103471114B (en) | 2015-07-22 |
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