CN203517825U - Furnace structure of catalytic combustion bed - Google Patents
Furnace structure of catalytic combustion bed Download PDFInfo
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- CN203517825U CN203517825U CN201320604847.1U CN201320604847U CN203517825U CN 203517825 U CN203517825 U CN 203517825U CN 201320604847 U CN201320604847 U CN 201320604847U CN 203517825 U CN203517825 U CN 203517825U
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- heater
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- air intake
- catalytic combustion
- intake duct
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Abstract
The utility model relates to a furnace structure of a catalytic combustion bed. An inner furnace hoarding is arranged in an outer furnace hoarding, air inlet channels and air outlet channels are alternately arranged between the inner furnace hoarding and the outer furnace hoarding, inlets of the air inlet channels are formed in an upper end plate, outlets of the air inlet channels are formed between a lower end plate and the inner furnace hoarding, inlets of the air outlet channels are formed between the upper end plate and the inner furnace hoarding, and outlets of the air outlet channels are formed in the lower end plate. An inlet air guiding cover is arranged on the portion, corresponding to an inlet of an air inlet cover, on the upper face of the middle of the upper end plate, a combustion gas guiding cover is arranged on the lower face of the middle of the upper end plate, a heater is arranged in the position, corresponding to the outlets of the air inlet channels, in the furnace, the heater is fixedly installed on the outer furnace hoarding, and an outlet air guiding cover is arranged on the portion, corresponding to an outlet of an air outlet cover, of the lower face of the middle of the lower end plate. The thermal efficiency of the furnace structure is effectively improved, thermal loss is reduced, the thermal recovery utilization ratio is improved, the temperature in the furnace structure is more uniform in combustion, and the combustion efficiency and the purifying rate are improved.
Description
Technical field
The utility model belongs to catalytic combustion bed field, especially a kind of catalytic combustion pool furnace body structure.
Background technology
Problem of environmental pollution is more and more subject to people's attention, especially recently the haze weather frequently occurring, this noun of PM2.5 is more and more 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 conventionally, 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, recuperation of heat utilization ratio is lower, 2. non-uniform temperature in furnace binding, is totally centre temperature high, and edge temperature is low, has reduced industrial volatile organic pollutants efficiency of combustion, affects the purifying rate of catalytic combustion.
Summary of the invention
The purpose of this utility model 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 recuperation of heat utilization rate, during burning, in furnace binding, temperature is more even, has improved efficiency of combustion and purifying rate.
The utility model 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, body of heater upper end is fixedly mounted with airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise 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 body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct and gas off-take, 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, on the upper head plate middle part of corresponding airscoop shroud import, be provided with air inlet kuppe, on below upper head plate middle part, be provided with combustion gas kuppe, in body of heater corresponding to air intake port, be provided with heater, this heater is packed on body of heater peripheral board, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe of giving vent to anger.
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 described air intake duct is identical with the quantity of gas off-take and be evenly alternately arranged in body of heater between coaming plate and body of heater peripheral board.
And, on described airscoop shroud, be provided with explosion-proof relief mouth.
And described air intake duct sectional area is greater than gas off-take sectional area or air intake duct sectional area equals gas off-take sectional area.
And described air intake duct sectional area is less than gas off-take sectional area.
And, described air intake duct adopt rectangular steel pipe and be arranged on 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, coaming plate cross section is rectangle or square or circular.
And described heater is electric heating tube group.
And described air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.
Advantage of the present utility model and beneficial effect are:
1, this catalytic combustion pool furnace body structure comprises airscoop shroud, body of heater and air leaving cover, body of heater upper end is fixedly mounted with airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise 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 body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct and gas off-take, 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 bed bottom of furnace body 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 to burn evenly in body of heater, high-temperature gas after burning refluxes downwards evenly by gas off-take, make bottom of furnace body temperature-compensating even, overcome in prior art catalytic combustion pool furnace body centre temperature high, the shortcoming that temperature low heating in edge is uneven, efficiency of combustion and purifying rate have been improved.
2, in this catalytic combustion pool furnace body structure, on the upper head plate middle part of corresponding airscoop shroud import, be provided with air inlet kuppe, on below upper head plate middle part, be provided with combustion gas kuppe, in body of heater corresponding to air intake port, be provided with heater, this heater is packed on body of heater peripheral board, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe of giving vent to anger, 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 burning enters gas off-take, effectively improve catalytic combustion bedside edge megadyne temperature degree, after entering into air leaving cover, evenly discharge, for furnace binding realizes high burning efficiency and purifying rate lays the first stone.
3, in this catalytic combustion pool furnace body structure, heater adopts electric heating tube group except the preheating in early stage for catalysis flow process, is conducive to the in particular cases auxiliary heating to catalytic combustion bed, and firing rate is fast, efficiency is high, be arranged on 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 the recycling of catalytic combustion heat is performed to ultimate attainment.Utilize catalyst combustion reaction heat to carry out preheating to entering the gas of catalytic combustion bed.This warm belongs to countercurrent flow, for the high temperature catalytic combustion tail gas flowing through in the air flue being formed by coaming plate in body of heater and body of heater peripheral board, belongs to following current heat exchange for the air-flow in catalytic combustion bed, gas in air intake duct is heated in three directions, and make heat exchange unit to greatest extent near thermal source, reduce heat loss, improve heat exchange efficiency, to guarantee that catalytic combustion bed reaches catalysis initiation temperature at the stylish VOCs gas entering 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 body of heater wall is back to catalytic combustion bed lower part outlet, catalytic combustion bed fringe region is carried out to back feeding heating, 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 catalytic combustion purifying rate, and form benign cycle thus, be beneficial to catalytic combustion and carry out continually and steadily.
6, in this catalytic combustion pool furnace body structure, on upper head plate, be provided with a Catalyst packing door, 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, air intake duct sectional area can equal gas off-take sectional area, air intake duct sectional area also can be greater than gas off-take sectional area, air intake duct sectional area can also be less than gas off-take sectional area, according to climate reasons, VOCs gas treatment amount and catalyst use amount, determine different air intake ducts and the cross-section relation between gas off-take, 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 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 equipment use procedure, and reduce steel use amount, reduce construction costs, for energy-saving and cost-reducing new design, reach processing requirements completely.
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, coaming plate cross section is rectangle or square or circular, air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, and 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, in this catalytic combustion pool furnace body structure, on airscoop shroud, be provided with explosion-proof relief mouth, improved the security of furnace binding, prevent that security incident from occurring.
11, the utility model furnace binding arranges that simple, design science rationally, effectively improves the thermal efficiency of furnace binding itself, reduces thermal losses, improves recuperation of heat utilization rate, and during burning, in furnace binding, temperature is more even, has improved efficiency of combustion and purifying rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the axle of Fig. 1 cuts open figure;
Fig. 3 is the structural representation (omission heater) of the utility model body of heater;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the upward view of Fig. 3;
Fig. 6 is the stereogram (omitting kuppe and heater) of the utility model body of heater.
The specific embodiment
Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of catalytic combustion pool furnace body structure, comprise airscoop shroud 3, body of heater 5 and air leaving cover 8, on airscoop shroud, be provided with explosion-proof relief mouth 2, body of heater upper end is fixedly mounted with airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, airscoop shroud upper end arranges gas feed 1, 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 body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct 11 and gas off-take 18, 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, on the upper head plate middle part of corresponding airscoop shroud gas feed, be provided with air inlet kuppe 12, on below upper head plate middle part, be provided with combustion gas kuppe 13, in body of heater corresponding to air intake port, be provided with heater 6, this heater is packed on body of heater peripheral board, this heater is electric heating tube group, electric heating tube quantity can be determined according to actual conditions, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe 16 of giving vent to anger, 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 be evenly alternately 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 be evenly alternately 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, air intake duct sectional area can equal gas off-take sectional area, air intake duct sectional area also can be greater than gas off-take sectional area, air intake duct sectional area can also be less than 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, coaming plate cross section is rectangle or square or circular, air intake duct cross section is rectangle or square or fan-shaped or circular or encircle fan-shapedly, and gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.
The utility model in use VOCs gas enters through air inlet kuppe gas uniform and flows to the Fighter Inlet upper head plate from the import of airscoop shroud, by inlet duct flow, arrive catalytic combustion pool furnace body below, meeting bottom plate stops to turn back and enters in catalytic combustion pool furnace body, aperture through heater and cat ceramic honeycomb substrate burns, 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 gas off-take both sides, the gas off-take that in body of heater peripheral board and body of heater, coaming plate surrounds, from gas off-take outlet, through the kuppe of giving vent to anger, evenly flow out air leaving cover outlet.
Actual motion compliance test result of the present utility model: 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 VOCs gas concentration meets the period of minimum ignition concentration, realize self-sustaining burning completely, 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.San Ge region, catalytic combustion bed upper, middle and lower temperature instrumentation reading approaches, and uniformity of temperature profile is described, exit gas detects, and VOCs concentration, lower than 20ppm, illustrates that 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, body of heater upper end is fixedly mounted with airscoop shroud, body of heater lower end is fixedly mounted with air leaving cover, body of heater comprise 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 body of heater peripheral board, in body of heater, between coaming plate and body of heater peripheral board, be arranged alternately air intake duct and gas off-take, 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, on the upper head plate middle part of corresponding airscoop shroud import, be provided with air inlet kuppe, on below upper head plate middle part, be provided with combustion gas kuppe, in body of heater corresponding to air intake port, be provided with heater, this heater is packed on body of heater peripheral board, below the bottom plate middle part of corresponding air leaving cover outlet, be provided with the kuppe of giving vent to anger.
2. catalytic combustion pool furnace body structure according to claim 1, is characterized in that: described air inlet kuppe is positive rectangular pyramid structure, and 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: described air intake duct is identical with the quantity of gas off-take and be evenly alternately 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: on described airscoop shroud, be provided with explosion-proof relief mouth.
5. according to the catalytic combustion pool furnace body structure described in claim 1 or 3, it is characterized in that: described air intake duct sectional area is greater than gas off-take sectional area or air intake duct sectional area equals gas off-take sectional area.
6. according to the catalytic combustion pool furnace body structure described in claim 1 or 3, it is characterized in that: described air intake duct sectional area is less than gas off-take sectional area.
7. according to the catalytic combustion pool furnace body structure described in claim 1 or 3, it is characterized in that: described air intake duct adopt rectangular steel pipe and be arranged on 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, coaming plate cross section is rectangle or square or circular.
9. catalytic combustion pool furnace body structure according to claim 1, is characterized in that: described heater is 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 gas off-take cross section is rectangle or square or fan-shaped or circular or encircle fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604847.1U CN203517825U (en) | 2013-09-27 | 2013-09-27 | Furnace structure of catalytic combustion bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604847.1U CN203517825U (en) | 2013-09-27 | 2013-09-27 | Furnace structure of catalytic combustion bed |
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| CN203517825U true CN203517825U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320604847.1U Withdrawn - After Issue CN203517825U (en) | 2013-09-27 | 2013-09-27 | Furnace structure of catalytic combustion bed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471114A (en) * | 2013-09-27 | 2013-12-25 | 天津赛智科技发展有限公司 | Catalytic combustion bed furnace body structure |
-
2013
- 2013-09-27 CN CN201320604847.1U patent/CN203517825U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471114A (en) * | 2013-09-27 | 2013-12-25 | 天津赛智科技发展有限公司 | Catalytic combustion bed furnace body structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20150722 |
|
| RGAV | Abandon patent right to avoid regrant |