CN203517829U - Furnace core structure of catalyzing bed - Google Patents
Furnace core structure of catalyzing bed Download PDFInfo
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- CN203517829U CN203517829U CN201320605383.6U CN201320605383U CN203517829U CN 203517829 U CN203517829 U CN 203517829U CN 201320605383 U CN201320605383 U CN 201320605383U CN 203517829 U CN203517829 U CN 203517829U
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- combustion chamber
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- core structure
- air intake
- intake duct
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Abstract
The utility model relates to a furnace core structure of a catalyzing bed. The furnace core structure comprises an upper end plate, a lower end plate and an outer furnace core hoarding. The upper end plate is fixedly installed at the upper end of the outer furnace core hoarding, the lower end plate is fixedly installed at the lower end of the outer furnace core hoarding, and an inner furnace core hoarding is arranged in the outer furnace core hoarding. Air inlet channels and an air outlet channels are alternately arranged between the inner core hoarding and the outer furnace core hoarding, inlets of the air inlet channels are formed in the upper end plate, outlets of the air inlet channels are formed between the lower end plate and the inner furnace core hoarding, inlets of the air outlet channels are formed between the upper end plate and the inner furnace core hoarding, and outlets of the air outlet channels are formed in the lower end plate. The furnace core structure is simple in arrangement and scientific and reasonable in design, the thermal efficiency of the furnace core structure is effectively improved, thermal loss is reduced, the thermal recovery utilization ratio is improved, the temperature in the furnace core 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 bed field, especially a kind of catalytic bed stove core structure.
Background technology
Raising along with people's living standard, environmental pollution is more and more subject to people's attention, haze weather increases that to make people experience air pollution more and more serious, this noun of PM2.5 more and more receives publicity, in PM2.5 to people's health harm maximum no more than industrial volatile organic pollutants, in prior art, industrial volatile organic pollutants is mainly adopted to Production by Catalytic Combustion Process, existing catalytic bed stove core structure is made building enclosure by heat resisting steel sheet material or industrial furnace building material conventionally, inlet and outlet is located at the two ends up and down of stove core structure, although existing structure can be realized catalytic combustion, but there are the following problems: 1. the thermal losses of stove core structure own is large, recuperation of heat utilization ratio is lower, 2. non-uniform temperature in stove core structure, 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 bed stove core structure is provided, this stove core structure is arranged simply, design science rationally, effectively improves the thermal efficiency of stove core structure itself, reduce thermal losses, improve recuperation of heat utilization rate, during burning, in stove core structure, 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 bed stove core structure, comprise upper head plate, bottom plate and combustion chamber peripheral board, the upper end of combustion chamber peripheral board is fixedly mounted with upper head plate, the lower end of combustion chamber peripheral board is fixedly mounted with bottom plate, it arranges coaming plate in a combustion chamber in combustion chamber peripheral board, in combustion chamber, between coaming plate and combustion chamber 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 combustion chamber, the import of gas off-take is arranged between upper head plate and the interior coaming plate of combustion chamber, and the outlet of gas off-take is arranged on bottom plate.
And, on described upper head plate, be provided with a Catalyst packing door.
And described air intake duct is identical with the quantity of gas off-take and be evenly alternately arranged in combustion chamber between coaming plate and combustion chamber peripheral board.
And described air intake duct sectional area equals gas off-take sectional area.
And described air intake duct sectional area is greater than 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 combustion chamber peripheral board with the interior coaming plate of combustion chamber between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, combustion chamber peripheral board and the combustion chamber of its both sides.
And described combustion chamber peripheral board cross section is rectangle or square or circular.
And coaming plate cross section is rectangle or square or circular in described combustion chamber.
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 bed stove core structure comprises upper head plate, bottom plate and combustion chamber peripheral board, the upper end of combustion chamber peripheral board is fixedly mounted with upper head plate, the lower end of combustion chamber peripheral board is fixedly mounted with bottom plate, it arranges coaming plate in a combustion chamber in combustion chamber peripheral board, in combustion chamber, between coaming plate and combustion chamber 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 combustion chamber, the import of gas off-take is arranged between upper head plate and the interior coaming plate of combustion chamber, 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 bed combustion chamber bottom surrounding, thereby the industrial volatile organic pollutants that makes to enter combustion chamber is attracted to the surface of cat ceramic carrier more uniformly, make to burn evenly in combustion chamber, high-temperature gas after burning refluxes downwards evenly by gas off-take, high-temperature gas produces heat feedback by combustion chamber wall to combustion chamber, make the compensation of combustion chamber bottom temp evenly, overcome in prior art catalytic bed combustion chamber centre temperature high, the shortcoming that temperature low heating in edge is uneven, efficiency of combustion and purifying rate have been improved.
2, this catalytic bed stove core 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 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 combustion chamber and combustion chamber peripheral board, belongs to following current heat exchange for the air-flow in catalytic 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 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.
3, the high-temperature tail gas that in this catalytic bed stove core structure, catalytic combustion produces is along gas off-take, it is the process that combustion chamber wall is back to catalytic bed lower part outlet, catalytic bed fringe region is carried out to back feeding heating, contribute to the maintenance of catalytic bed bulk temperature with even, impel catalytic combustion to be evenly distributed in whole catalytic bed cross section, improve catalytic combustion purifying rate, and form benign cycle thus, be beneficial to catalytic combustion and carry out continually and steadily.
4, in this catalytic bed stove core structure, on upper head plate, be provided with a Catalyst packing door, facilitated the replacing of catalytic bed combustion chamber inner catalyst, improved production efficiency.
5, in this catalytic bed stove core 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.
6, in this catalytic bed stove core structure air intake duct adopt rectangular steel pipe and be arranged on combustion chamber peripheral board with the interior coaming plate of combustion chamber between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, combustion chamber peripheral board and the combustion chamber of its both sides, this kind of mode design can effectively be reduced steel use amount, reduce construction costs, for energy-saving and cost-reducing new design, reach processing requirements completely.
7, in this catalytic bed stove core structure, combustion chamber peripheral board cross section is rectangle or square or circular, in combustion chamber, 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 bed profile, facilitates the design of various situations.
8, the utility model stove core structure arranges that simple, design science rationally, effectively improves the thermal efficiency of stove core structure itself, reduces thermal losses, improves recuperation of heat utilization rate, and during burning, in stove core structure, 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 the top view of Fig. 1;
Fig. 3 is the upward view of Fig. 1;
Fig. 4 is the A-A cutaway view Amplified image of Fig. 1;
Fig. 5 is the B-B cutaway view Amplified image of Fig. 1;
Fig. 6 is stereogram of the present utility model.
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 bed stove core structure, comprise upper head plate 1, bottom plate 3 and combustion chamber peripheral board 2, the upper end of combustion chamber peripheral board is fixedly mounted with upper head plate, the lower end of combustion chamber peripheral board is fixedly mounted with bottom plate, on upper head plate, be provided with a Catalyst packing door 4, it arranges coaming plate 9 in a combustion chamber in combustion chamber peripheral board, in combustion chamber, between coaming plate and combustion chamber peripheral board, be arranged alternately air intake duct 8 and gas off-take 11, the import 5 of air intake duct is arranged on upper head plate, the outlet 10 of air intake duct is arranged between bottom plate and the interior coaming plate of combustion chamber, the import 7 of gas off-take is arranged between upper head plate and the interior coaming plate of combustion chamber, the outlet 6 of gas off-take is arranged on bottom plate.The quantity of air intake duct and gas off-take is identical and be evenly alternately arranged in combustion chamber between coaming plate and combustion chamber peripheral board, air intake duct can be not identical with the quantity of gas off-take yet, described be arranged in combustion chamber the air intake duct in opposite between coaming plate and combustion chamber 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 combustion chamber between coaming plate and combustion chamber 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 bed stove core structure adopts rectangular steel pipe and is arranged in combustion chamber peripheral board and combustion chamber between coaming plate, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, combustion chamber peripheral board and the combustion chamber of its both sides, combustion chamber peripheral board cross section is rectangle or square or circular, in combustion chamber, 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 in advance VOCs gas flow of high temperature preheating passes into for the Fighter Inlet from upper head plate, by inlet duct flow, arrive catalytic bed stove core structure below, meeting bottom plate stops to turn back and enters in catalytic bed combustion chamber, under catalyst action, there is flameless combustion in the aperture through cat ceramic honeycomb substrate, gas after burning meets end plate to be stopped to turn back and enters the gas off-take by coaming plate surrounds in air intake duct rectangle steel tube wall, combustion chamber peripheral board and the combustion chamber of gas off-take both sides, from gas off-take outlet, flows out.
Actual motion compliance test result of the present utility model: this new catalytic pool furnace cored structure 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 bed temperature short time reaches 650 ℃, most time maintains between 350 ℃～450 ℃, and flameholding fluctuates less.San Ge region, catalytic 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 bed stove core structure, comprise upper head plate, bottom plate and combustion chamber peripheral board, the upper end of combustion chamber peripheral board is fixedly mounted with upper head plate, the lower end of combustion chamber peripheral board is fixedly mounted with bottom plate, it is characterized in that: coaming plate in a combustion chamber is set in combustion chamber peripheral board, in combustion chamber, between coaming plate and combustion chamber 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 combustion chamber, the import of gas off-take is arranged between upper head plate and the interior coaming plate of combustion chamber, the outlet of gas off-take is arranged on bottom plate.
2. catalytic bed stove core structure according to claim 1, is characterized in that: on described upper head plate, be provided with a Catalyst packing door.
3. catalytic bed stove core 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 combustion chamber between coaming plate and combustion chamber peripheral board.
4. according to the catalytic bed stove core structure described in claim 1 or 3, it is characterized in that: described air intake duct sectional area equals gas off-take sectional area.
5. according to the catalytic bed stove core 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.
6. according to the catalytic bed stove core 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 bed stove core structure described in claim 1 or 3, it is characterized in that: described air intake duct adopt rectangular steel pipe and be arranged on combustion chamber peripheral board with the interior coaming plate of combustion chamber between, gas off-take is surrounded by coaming plate in air intake duct rectangle steel tube wall, combustion chamber peripheral board and the combustion chamber of its both sides.
8. catalytic bed stove core structure according to claim 1, is characterized in that: described combustion chamber peripheral board cross section is rectangle or square or circular.
9. catalytic bed stove core structure according to claim 1, is characterized in that: in described combustion chamber, coaming plate cross section is rectangle or square or circular.
10. catalytic bed stove core structure according to claim 1, 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 |
|---|---|---|---|
| CN201320605383.6U CN203517829U (en) | 2013-09-27 | 2013-09-27 | Furnace core structure of catalyzing bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605383.6U CN203517829U (en) | 2013-09-27 | 2013-09-27 | Furnace core structure of catalyzing bed |
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| Publication Number | Publication Date |
|---|---|
| CN203517829U true CN203517829U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605383.6U Withdrawn - After Issue CN203517829U (en) | 2013-09-27 | 2013-09-27 | Furnace core structure of catalyzing bed |
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| Country | Link |
|---|---|
| CN (1) | CN203517829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471110A (en) * | 2013-09-27 | 2013-12-25 | 天津赛智科技发展有限公司 | Catalytic bed furnace core structure |
-
2013
- 2013-09-27 CN CN201320605383.6U patent/CN203517829U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471110A (en) * | 2013-09-27 | 2013-12-25 | 天津赛智科技发展有限公司 | Catalytic bed furnace core 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: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |