CN101625211B - Natural circulation air-cooled type flashboard for high temperature flue gas pipeline - Google Patents
Natural circulation air-cooled type flashboard for high temperature flue gas pipeline Download PDFInfo
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- CN101625211B CN101625211B CN200810012254XA CN200810012254A CN101625211B CN 101625211 B CN101625211 B CN 101625211B CN 200810012254X A CN200810012254X A CN 200810012254XA CN 200810012254 A CN200810012254 A CN 200810012254A CN 101625211 B CN101625211 B CN 101625211B
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- channel unit
- flashboard
- temperature flue
- gas channel
- high temperature
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a flashboard for cutoff used on a high temperature flue gas pipeline of a heat recovery coke oven (also called non-recovery coke oven), which adopts a hollow structure and is provided with a plurality of gas flow channels, wherein every two adjacent communicated gas flow channels form a group to form a gas flow channel unit, the inlet and the outlet of the gas flow channel unit have height difference, the air in the gas flow channels is heated by the heat of the peripheral high temperature flue gas to generate thermal buoyancy so that the air is sucked in from the inlet of the gas flow channel unit and flows out from the outlet to form natural circulation, and the hollow flashboard is cooled to achieve the aim of reducing the surface temperature of the flashboard without any outside power. The technique can effectively reduce the labor intensity of workers, prolong the service life of the product, reduce the using cost, and save the resources.
Description
Technical field
Flashboard is used in the cut-out that the present invention relates to use on a kind of heat recovery coke oven high temperature flue gas pipeline of (also claiming non-recovery coke oven), is mainly used in high temperature flue gas pipeline and other high temperature flue gas pipelines of newly-built, renovating and enlarging various heat recovery coke ovens.
Background technology
Heat recovery coke oven is in the production use, and the high-temperature flue gas of generation (temperature is at 850 ℃～1200 ℃) is via high temperature flue gas pipeline, arrives waste heat boiler and follow-up workshop section (or diffuse in atmosphere via the accident chimney).Consider that high temperature flue gas pipeline goes into operation, debugs and produce the needs of maintenance, must be provided with the flashboard that cuts off high-temperature flue gas on high temperature flue gas pipeline.Because working media (being high-temperature flue gas) temperature is too high, the flashboard of employing traditional structure can't satisfy the requirement of long-term stability, safe handling.At present in the domestic heat recovery coke oven of having gone into operation; Flashboard on the high temperature flue gas pipeline all is a plank frame, and what material generally adopted all is cast iron or refractory material, and the mechanical property of refractory material is bad because the high-temperature behavior of cast iron can't satisfy instructions for use; Therefore adopt the flashboard of above-mentioned material and structure; Spoilage is very high, and flashboard needs often to change, and operation replacing difficulty is big.
To the These characteristics of heat recovery coke oven high temperature flue gas pipeline, be badly in need of solving the flashboard problem that long-term safety is used under hot environment of cutting off.
Summary of the invention
The purpose of this invention is to provide a kind of natural circulation air-cooled type flashboard for high temperature flue gas pipeline, this flashboard can be realized the nature cooling, effectively reduces the flashboard surface temperature, has reduced production maintenance cost and working strength of workers.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
Natural circulation air-cooled type flashboard for high temperature flue gas pipeline; The hollow structure that it is made up of side plate, dividing plate, outer ring closure plate; This hollow structure is divided into a plurality of gas channels unit by dividing plate; The gas channel of two whenever adjacent connections is one group, forms a gas channel unit, is provided with gas channel unit air inlet and gas channel unit air outlet.
Described gas channel unit air outlet is higher than gas channel unit air inlet.
Separate through dividing plate between the described gas channel unit and be disconnected structure.
Be provided with the distance that dividing plate both sides gas is communicated bottom the central dividing plate of described each gas channel unit with between the closure plate of outer ring.
Compared with prior art, the invention has the beneficial effects as follows:
1, is applicable to the high temperature flue gas pipeline of newly-built, renovating and enlarging various heat recovery coke ovens, need not increases other auxiliary equipment.
2, owing to adopt hollow structure, weight of equipment is light, is convenient to workman's operation and maintenance, improves operation intensity.
3, be higher than far away under the prerequisite of outer atmospheric temperature at the flashboard operating ambient temperature, the air in the flashboard has heat buoyancy, because the design feature of gas channel unit makes air in the gas channel unit, flow naturally.Reduce the flashboard surface temperature effectively, also improved product service life when satisfying instructions for use.
Description of drawings
Fig. 1 is the natural circulation air-cooled type flashboard for high temperature flue gas pipeline structural representation.
Among the figure: air inlet 5-gas channel unit, closure plate 4-gas channel unit, 1-side plate 2-dividing plate 3-outer ring air outlet
The specific embodiment
Be described in detail particular content of the present invention below in conjunction with accompanying drawing:
See Fig. 1; Natural circulation air-cooled type flashboard for high temperature flue gas pipeline; The hollow structure that it is made up of side plate 1, dividing plate 2, outer ring closure plate 3, this hollow structure is divided into a plurality of gas channels unit by dividing plate, and the gas channel of two whenever adjacent connections is one group; Form a gas channel unit, each gas channel unit is provided with gas channel unit air inlet 4 and gas channel unit air outlet 5.Gas channel unit air outlet 5 is higher than gas channel unit air inlet 4; Separate through dividing plate between each gas channel unit and be disconnected structure; Be provided with the distance that dividing plate both sides gas is communicated bottom the central dividing plate of each gas channel unit with between the closure plate of outer ring.
The operation principle of this device is: temperature is very high in the high temperature flue gas pipeline of flashboard work; The heat of high-temperature flue gas is delivered on the body of flashboard through heat conduction and thermal-radiating mode; Air in the flashboard of hollow also is heated to quite high temperature, and this temperature is far above outer atmospheric temperature, and heated air has heat buoyancy; There is certain height poor between the air inlet of flashboard and the air outlet; Under the effect of heat buoyancy, produce certain pressure differential between the import and export, thereby form certain suction; Make air in the gas channel unit, flowed to air outlet by air inlet, the size of suction depends on the difference in height between air inlet and the air outlet, the temperature difference of flashboard inner air and outer air and the resistance in the gas channel unit.Because the air inlet and the air outlet of each gas channel unit of flashboard body all communicate with ambient atmosphere, extraneous cold air is constantly got into by gas channel unit air inlet 4 in a steady stream, and air outlet 5 flows out from the gas channel unit, forms Natural Circulation and flows.Air is taken away a part with the heat on the flashboard body in process of flowing, thereby reaches the effect that reduces the flashboard surface temperature.The high-temperature flue gas system goes into operation, and the back is continuous turns round; Therefore hot-air and the cool ambient air in the gas channel unit has temperature difference all the time; The flashboard main body structure makes air outlet have suction all the time with respect to air inlet, so the air in the gas channel is in the power that need not any external world from the state of flowing all the time.
Natural circulation air-cooled type flashboard for high temperature flue gas pipeline is mainly used in high-temperature flue gas pipeline or other high-temperature flue gas pipelines of newly-built, renovating and enlarging various heat recovery coke ovens.
Claims (2)
1. natural circulation air-cooled type flashboard for high temperature flue gas pipeline; It is characterized in that; The hollow structure that it is made up of side plate, dividing plate, outer ring closure plate, this hollow structure is divided into a plurality of gas channels unit by dividing plate, and the gas channel of two whenever adjacent connections is one group; Form a gas channel unit, be provided with gas channel unit air inlet and gas channel unit air outlet; Described gas channel unit air outlet is higher than gas channel unit air inlet, separates through dividing plate between the described gas channel unit to be disconnected structure.
2. natural circulation air-cooled type flashboard for high temperature flue gas pipeline according to claim 1 is characterized in that, is provided with the distance that dividing plate both sides gas is communicated between the central dividing plate of described each gas channel unit bottom and the outer ring closure plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810012254XA CN101625211B (en) | 2008-07-11 | 2008-07-11 | Natural circulation air-cooled type flashboard for high temperature flue gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810012254XA CN101625211B (en) | 2008-07-11 | 2008-07-11 | Natural circulation air-cooled type flashboard for high temperature flue gas pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101625211A CN101625211A (en) | 2010-01-13 |
| CN101625211B true CN101625211B (en) | 2012-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810012254XA Active CN101625211B (en) | 2008-07-11 | 2008-07-11 | Natural circulation air-cooled type flashboard for high temperature flue gas pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN101625211B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990749A (en) * | 2017-12-28 | 2018-05-04 | 西南铝业（集团）有限责任公司 | A kind of aluminium melting furnace smoke exhaust pipe cigarette lock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210235U (en) * | 1986-12-15 | 1988-03-09 | 冶金部鞍山热能研究所 | Reversible heat-exchanger with a ceramic honeycomb structure |
| CN1135787A (en) * | 1993-11-10 | 1996-11-13 | 切姆曼和杰生股份有限公司 | Cooled gate valve disk |
| CN1615371A (en) * | 2002-01-16 | 2005-05-11 | 保尔·沃特公司 | Cooling plate for a metallurgical furnace and method for manufacturing such a cooling plate |
-
2008
- 2008-07-11 CN CN200810012254XA patent/CN101625211B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210235U (en) * | 1986-12-15 | 1988-03-09 | 冶金部鞍山热能研究所 | Reversible heat-exchanger with a ceramic honeycomb structure |
| CN1135787A (en) * | 1993-11-10 | 1996-11-13 | 切姆曼和杰生股份有限公司 | Cooled gate valve disk |
| CN1615371A (en) * | 2002-01-16 | 2005-05-11 | 保尔·沃特公司 | Cooling plate for a metallurgical furnace and method for manufacturing such a cooling plate |
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| Publication number | Publication date |
|---|---|
| CN101625211A (en) | 2010-01-13 |
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Effective date of registration: 20180725 Address after: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee after: ACRE Coking And Refractory (Dalian) Engineering Consulting Corp., MCC Address before: No. 27, Shengnan Road, Dong Dong District, Anshan, Liaoning Province Patentee before: ACRE Coking and Refractory Engineering Consulting Corporation, MCC |