CN1145757C - Method and device for recovery of energy from media containing combustible substances even at low concentration - Google Patents
Method and device for recovery of energy from media containing combustible substances even at low concentration Download PDFInfo
- Publication number
- CN1145757C CN1145757C CNB951979981A CN95197998A CN1145757C CN 1145757 C CN1145757 C CN 1145757C CN B951979981 A CNB951979981 A CN B951979981A CN 95197998 A CN95197998 A CN 95197998A CN 1145757 C CN1145757 C CN 1145757C
- Authority
- CN
- China
- Prior art keywords
- burning
- medium
- combustible material
- energy
- interchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
- F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
- F23G7/068—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator using regenerative heat recovery means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
- Incineration Of Waste (AREA)
Abstract
The present invention relates to a method and a device for recovering energy from media containing inflammable substances and even containing inflammable substances with low concentration. The method is characterized in that medium temperature in a reverse flowing combustion device which burns in a thermal protection zone of a regenerative type combustor (8) is improved to burning temperature, which enables all the chemical energy of inflammable substances to be basically converted into thermal energy under the temperature; then, heated media are used for producing required forms of energy.
Description
Technical field
The present invention relates generally to from containing combustible material, even contain a kind of method and apparatus that recovers energy in the medium of low concentration combustible material, particularly with by the burning combustible material, purify the relevant energy of described medium and reclaim.
Background technology
Known can be to from purifying such as waste gas paint and machine room discharge, that contain such as the combustible material of solvent, its method is the ignition temperature that waste gas is heated to combustible material.But this bargain price costliness is because need be to discharging the whole air-flow heating of medium.Thanks to a kind of " burning interchanger ", thereby may reduce the cost of heat exhaust gases, an embodiment of this burning interchanger obtains explanation in the Swedish patent specification 8903556-2 that for example relates to absorption techniques.In described patent specification, the burning interchanger is defined by a kind of device that comprises an energy storage bed, this energy storage bed can be heated to the autoignition temperature of combustible material, and by putting upside down the flow direction of combustible material, makes combustible material keep autoignition temperature in the bed in this.Among U.S. Pat-A-4741690 this type of device is being disclosed also for example.When having the combustible material of some in the medium, the medium in the available combustible material energy heating flame interchanger that spontaneous combustion discharges in bed.Like this, when the firm entry into service of factory, or considerably less when the amount of combustible material, when being not enough to keep separately the autoignition temperature in the bed, supplementary heating only needs energy storage bed is heated to autoignition temperature.
But because the burning interchanger is efficient, the situation of combustible material lazy weight is less relatively in the above-mentioned medium.Thereby combustible material quantity surpasses an amount that interior autoignition temperature requires of keeping usually.This is directed at an interior heat increases, and it transfers to cause again needs to strengthen the cooling of bed to avoid the damage to bed and peripheral region.In addition, consider the high and environmental problem of cost of energy, the heat energy that produces when not reclaiming burning also is a difficult problem.
Summary of the invention
Therefore, an object of the present invention is to propose a kind of method and apparatus, they can make the regenerative burner, and the unnecessary heat energy that burning produces in the reverse burner that promptly flows is utilized, the reverse burner that the flows interchanger that preferably burns, carry out in burning warming zone therein.
Another purpose of this method and apparatus that the present invention proposes is not only to recover energy, and also controls the temperature in the regenerative burner simultaneously.
The another purpose of this method and apparatus that the present invention proposes is by burning poisonous or jeopardizing weather or odorant is eliminated these materials.
Another purpose again of invention is to make the quality that reclaims heat energy in the regenerative burner can be mainly used in high temperature output, as is used to produce electric energy.
The these and other objects that the present invention proposes reach by following method and apparatus.
A kind of from containing combustible material, even contain the method that recovers energy in the medium of low concentration combustible material, medium temperature in the regenerative burner is raise, this regenerative burner has the reverse flow burner, wherein, burning occurs in protects dim district, preferably occur in the burning interchanger under the ignition temperature, whole chemical energy of combustible material convert heat energy substantially under ignition temperature, it is characterized in that after the combustible material burning, the portion of hot MEDIA FLOW is shunted at least from the combustion zone of regenerative combustor cavity, preferably by a part flow arrangement, from the bed shunting of regenerative burner.
A kind of from containing combustible material even containing the device that recovers energy the medium of low concentration combustible material, has at least one regenerative burner, this regenerative burner has an inlet duct that has inlet, and outlet conduit that has outlet, and dispose movable brake apparatus, alternately close the inlet and the outlet of pipeline, and between described inlet and outlet, dispose a bed, it is characterized in that, dispose a part flow arrangement in the promptly the hottest combustion zone of the central region of bed, splitter section combustion medium stream.
Description of drawings
Hereinafter will carry out more detailed explanation to one embodiment of the invention in conjunction with the accompanying drawings, wherein:
Fig. 1 is a schematic top view, and its expression the present invention proposes, and a kind of the purification discharged from the colliery or the device of the gas that swaps out.
Fig. 2 is the schematic side elevation of the burning interchanger that proposes of the present invention.
The specific embodiment
Device shown in Figure 1 is used to purify a kind of medium, and herein, this medium is the gas of discharging or swapping out from the colliery.This class waste gas comprises combustible material usually, promptly inflammable methane gas.When the overall contrive equipment of representing with label 7 did not use, the waste gas in the mine 1 was delivered to flue 4 by fan 2 and valve 3, or delivers to flue 6 by fan 5.
According to illustrated embodiment, the device 7 that the present invention proposes comprises four burning interchangers, and these interchangers are totally used label 8,8
I, 8
II, 8
III, 8
IVExpression, certainly, according to the difference of application, it also can comprise some more or less burning interchanger.Every burning interchanger 8 is by shared flow process fans 9 of all burning interchangers, and is connected with some outlet conduits 12 with some inlet pipelines 11 for every burning interchanger is provided with one valve 10.According to illustrated embodiment, 9 inlet pipelines and 9 outlet conduits are arranged, but the number of import and outlet conduit can be different therewith.Every inlet pipeline 11 and every outlet conduit 12 all are equipped with a brake apparatus, and they divide in addition and totally represent with label 13 and 14.Outlet conduit 12 is guided flue 6 into by the valve 15 of one of every burning interchanger 8 equipment.Also available as four desk fans replace separate unit fan 9, have at this moment equipped a desk fan for every burning interchanger.
Fig. 2 is the schematic section by burning interchanger 8.Brake apparatus 13 and be equipped with flashboard 18 and 19 in 14 minutes in addition, they can vertically move between two sealing stations, and when sealing station, each flashboard abuts against on its passage 16 and 17 hermetically separately.This two shoe brakes plate 18 and 19 is from same passage of blow-by, and with the position shown in the solid line time, the inlet 20 of passage 17 is led in flashboard 18 sealings, and the outlet 21 that flashboard 19 sealings are come out by passage 16.Thereby the valency matter that contains combustible material is passed through inlet duct 11, enter the bed 23 of burning interchanger by the inlet 22 of passage 16, combustible material burns in known mode originally therein, and air-flow outwards continues thus, by passage 17 and export 24 and flow to outlet conduit 12.In Fig. 2, this flows and is schematically illustrated by solid arrow 25.Undertaken by the mode of previously-known when seasonable by the flow direction of burning interchanger bed 23 reverse, with one of too close passage 16,17 in heat forward position of avoiding bed 23.When carrying out such commutation, flashboard 18 and 19 moves to position shown in dotted lines in Figure 2, and flowing then accordingly with these flashboard positions, with dashed lines arrow 26 schematically illustrates.
Obviously, valve 10,15 is used in and for example stops air flow direction between defects liability period and flow out a burning interchanger to overhaul or similar work.Can see further that also valve 3 is such valves, no matter whether it opens or closes and flows to flowing of flue 4 according to the flow by fan 9, so that mobile by device 7, ventilate always guarantee mine 1.
In central area bed 23, that be called the combustion zone heater 27 is arranged, it can be electrically heated, by this heater 27, for example when the burning interchanger will start, bed can be heated to the autoignition temperature of combustible material.
Also have a drainage tube or part flow arrangement 28 in the combustion zone, it is used for the partial discharge of heat medium shunting after the burning.According to this embodiment, part flow arrangement 28 is perforated pipes that extend along the bed 23 of combustion zone, but also can be made into other shape, for example makes a device that directly sucks medium by the wall 29 of bed 23.According to shown in embodiment, part flow arrangement 28 then be connected with the steam boiler 30 shown in Fig. 1 signal again.The medium of being shunted by part flow arrangement 28 is delivered to flue 6 by steam boiler 30 via fan 31, and the pressure that fan 31 is used to compensate in the boiler falls.
By illustrated embodiment, autoignition temperature in the burning interchanger is about 1000 ℃, in view of the above, combustible material preferably is made of the methane gas that discharge in the colliery, and the medium of directly shunting from the combustion zone can be used steam boiler 30 effectively, produces electric energy by applying steam turbine and generator.This electric energy can be used running one or some desk fans 2,5,9 and 31 according to the foregoing description.Consider risk of explosion, when therefore digging up mine, the tunnel definitely must always ventilate, and has at least one must forever move in the fan 2,5, even also should be like this when electric bus lost efficacy.Not so, mine must emptying, and this be one difficult, consuming time and spend big operation.Because the present invention has been arranged, some fans can cost-effective mode turn round like this, and mine need not rely on the power supply of outside power distribution network.In addition, the unnecessary electric energy that is sent by steam boiler, turbine and generator can be sold.Like this, the apparatus and method of invention produce electric energy simultaneously by the burning in bed 23, make it effectively economically, technical may protect environment.
In the colliery, the methane gas concentration of exhaust is up to 20%L.E.L. (low explosion limit) usually.Confirmed to build such burning interchanger, its thermal efficiency can reach 98%.This means that when methane gas concentration in the medium surpassed 0.1% (2%L.E.L), the burning interchanger just can the autonomous autoignition temperature of keeping in the combustion zone.This illustrates equally, use the present invention and make it reclaim electric energy from the medium that contains the low concentration combustible material, and up to now, this is practically impossible.In addition, can be used for controlling temperature in the bed 23 by the medium amount of part flow arrangement 28 shunting, become too wide to avoid the combustion zone, and for example contact is around the housing of bed, this itself has just comprised the risk of catching fire, and has yet comprised unnecessary energy loss.Adopt device of the present invention, also can control energy drain easily, flow through any change of combustibles quality in the medium of bed 23 with counteracting by changing bypass flow.Combustion process also is very to clean, because do not produce NO moment and/or heat during the burning in flame
X
Very clear, can carry out some modification to the embodiment of explanation.For example, the number of burning interchanger 8, and each in 23 the number of part flow arrangement 28 all can change.Obviously, the structure of brake apparatus 13,14 until its details also can with shown in different, as long as they can produce the change of flow direction in bed 23.In addition, the shape of passage 16,17 also can be different, for example can be made of the hollow pipe that is arranged in the bed 23, and the combustion zone then is based upon between them, for example as illustrating among the Swedish patent specification 9103634-3.Also very clear, can use any regenerative burner to replace the burning interchanger.
Certainly, heat medium also can be used for producing the energy of other form that is different from electric energy, and at this moment, part flow arrangement 28 also can be connected to the energy producing unit of other type that is different from steam boiler 30.For example, the medium that has heated can be used for heating another kind of medium, water for example, and at this moment, the heat energy in described second kind of medium alternately for example is used for the district heating system.In addition, in this situation, heat energy in the heat medium can be reclaimed by a kind of part flow arrangement, the form of this part flow arrangement is at least a pipeline, it make the corresponding discharge of second kind of medium be able to by, and it is to be placed in the combustion zone of regenerative burner, is preferably in the bed 23 of burning interchanger.
The apparatus and method that the present invention proposes are not to be only limited in the operation of opening a mine to use, but also can be applicable in the ventilation unit of following various process and occasion, for example production of Paint Production, machine room, spraying and lamination process, chemistry and drug products, animal-breeding equipment, bacterium cause decomposes factory, refuse alluvial and plastics and tire production; In other words can be applicable to such factory and process, wherein in medium, there is certain hydrocarbon such as solvent, styrene, plastics smog, gas from the fuel tank discharge, from the gas of fish processing industry, diesel engine or the discharge of natural gas cigarette ash, or the inflammable inorganic substances as discharging from electric furnace steel making production, i.e. carbon monoxide, or hydrogen as discharging from chemical industry, this medium need pass through the regenerative burner, the interchanger that preferably burns, and transmit.Various combustible materials also promptly also comprise from various processes, or the stench that sends from degasification or gas leak or Toxic can eliminate from medium effectively, simultaneously produce power also.Be readily appreciated that also the present invention not necessarily as shown in Figure 1 must be in conjunction with flue 4,6, fan 2,5 or valve 3 use, but can be applicable to any equipment, as long as medium wherein meets above-mentioned requirements.
All can carry out by the variations and modifications that the invention basic thought comprises, as long as they are positioned at the protection domain of claims.
Claims (8)
1. one kind from containing combustible material, even contain the method that recovers energy in the medium of low concentration combustible material, medium temperature in the regenerative burner is raise, this regenerative burner has the reverse flow burner, wherein, burning occurs in the warming district that is under the ignition temperature, whole chemical energy of combustible material convert heat energy substantially under ignition temperature, it is characterized in that, after the combustible material burning, the portion of hot MEDIA FLOW is shunted from the combustion zone of regenerative combustor cavity by a part flow arrangement (28) at least.
2. according to the method for claim 1, it is characterized in that, will divide flow medium to introduce a steam boiler (30).
3. according to the method for claim 1, it is characterized in that described medium is a kind of gas.
4. according to the method for claim 1, it is characterized in that described warming district is a burning interchanger.
5. according to the method for claim 1, it is characterized in that described heat medium flow is from burning interchanger (8I, 8II, 8III, bed 8IV) (23) shunting.
6. one kind from containing combustible material, even contain the device that recovers energy in the medium of low concentration combustible material, has at least one burning interchanger (8), this burning interchanger has an inlet duct (11) that has inlet (22), and outlet conduit (12) that has outlet (21), and dispose movable brake apparatus (13,14), alternately close pipeline (11,12) inlet (22) and outlet (21), and between described inlet (22) and outlet (21), dispose a bed (23), it is characterized in that, dispose a part flow arrangement (28), splitter section combustion medium stream in the promptly the hottest combustion zone of central region of bed (23).
7. according to the device of claim 6, it is characterized in that described part flow arrangement (28) is a perforated pipe.
8. according to the device of claim 6, it is characterized in that, dispose heater at the middle part of described bed (23).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9501476A SE9501476D0 (en) | 1995-04-24 | 1995-04-24 | Device for function selection at a hand-held communication unit |
| EP95943562A EP0865592B1 (en) | 1995-12-08 | 1995-12-08 | A method and a device for recovery of energy from media containing combustible substances even at low concentration |
| PL95328697A PL181258B1 (en) | 1995-12-08 | 1995-12-08 | Method of and apparatus for recovering energy from a medium containing flammable substances oven of low concentration |
| CNB951979981A CN1145757C (en) | 1995-12-08 | 1995-12-08 | Method and device for recovery of energy from media containing combustible substances even at low concentration |
| CA002238096A CA2238096C (en) | 1995-12-08 | 1995-12-08 | A method and a device for recovery of energy from media containing combustible substances even at low concentration |
| PCT/SE1995/001476 WO1997021959A1 (en) | 1995-12-08 | 1995-12-08 | A method and a device for recovery of energy from media containing combustible substances even at low concentration |
| IL11972896A IL119728A (en) | 1995-12-08 | 1996-12-01 | Method and device for recovery of energy from media containing combustible substances even at low concentration |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL95328697A PL181258B1 (en) | 1995-12-08 | 1995-12-08 | Method of and apparatus for recovering energy from a medium containing flammable substances oven of low concentration |
| CNB951979981A CN1145757C (en) | 1995-12-08 | 1995-12-08 | Method and device for recovery of energy from media containing combustible substances even at low concentration |
| CA002238096A CA2238096C (en) | 1995-12-08 | 1995-12-08 | A method and a device for recovery of energy from media containing combustible substances even at low concentration |
| PCT/SE1995/001476 WO1997021959A1 (en) | 1995-12-08 | 1995-12-08 | A method and a device for recovery of energy from media containing combustible substances even at low concentration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1205071A CN1205071A (en) | 1999-01-13 |
| CN1145757C true CN1145757C (en) | 2004-04-14 |
Family
ID=27427438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB951979981A Expired - Fee Related CN1145757C (en) | 1995-04-24 | 1995-12-08 | Method and device for recovery of energy from media containing combustible substances even at low concentration |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0865592B1 (en) |
| CN (1) | CN1145757C (en) |
| CA (1) | CA2238096C (en) |
| IL (1) | IL119728A (en) |
| PL (1) | PL181258B1 (en) |
| WO (1) | WO1997021959A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6261092B1 (en) * | 2000-05-17 | 2001-07-17 | Megtec Systems, Inc. | Switching valve |
| US6749815B2 (en) | 2001-05-04 | 2004-06-15 | Megtec Systems, Inc. | Switching valve seal |
| US7325562B2 (en) | 2002-05-07 | 2008-02-05 | Meggec Systems, Inc. | Heated seal air for valve and regenerative thermal oxidizer containing same |
| US7150446B1 (en) | 2002-08-28 | 2006-12-19 | Megtec Systems, Inc. | Dual lift system |
| US6669472B1 (en) | 2002-08-28 | 2003-12-30 | Megtec Systems, Inc. | Dual lift system |
| EP2132489A1 (en) * | 2007-03-06 | 2009-12-16 | CeramTec AG | System concept with low energy requirement and improved energy yield |
| CN101766952B (en) * | 2009-12-30 | 2012-11-21 | 山东理工大学 | Gas flow reverse control method of ventilation air methane thermal oxidation device of coal mine |
| CN102200285A (en) * | 2011-03-22 | 2011-09-28 | 创新工程方案有限公司 | Dynamic oxidation of industrial waste gas |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3312863C2 (en) * | 1983-04-09 | 1986-12-04 | Kernforschungsanlage Jülich GmbH, 5170 Jülich | Combustion chamber for burning exhaust gases |
| DK161037C (en) * | 1988-10-17 | 1991-10-28 | Haldor Topsoe As | PROCEDURE AND PLANT TO CONTINUOUSLY CLEAN AN OXYGEN GAS FOR FLAMMABLE POLLUTIONS |
| DE4102717A1 (en) * | 1990-01-30 | 1991-08-01 | Ltg Lufttechnische Gmbh | Regenerative reactor burning waste gas - has expansion zones in partitions reducing load on peripheral wall |
| SE500521C2 (en) * | 1991-12-09 | 1994-07-11 | Bjoern Heed | Combustion device comprising a stationary bed with heat accumulating and heat exchanging properties |
-
1995
- 1995-12-08 CN CNB951979981A patent/CN1145757C/en not_active Expired - Fee Related
- 1995-12-08 CA CA002238096A patent/CA2238096C/en not_active Expired - Fee Related
- 1995-12-08 WO PCT/SE1995/001476 patent/WO1997021959A1/en active IP Right Grant
- 1995-12-08 EP EP95943562A patent/EP0865592B1/en not_active Expired - Lifetime
- 1995-12-08 PL PL95328697A patent/PL181258B1/en unknown
-
1996
- 1996-12-01 IL IL11972896A patent/IL119728A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2238096A1 (en) | 1997-06-19 |
| EP0865592A1 (en) | 1998-09-23 |
| EP0865592B1 (en) | 2002-08-28 |
| PL181258B1 (en) | 2001-06-29 |
| CN1205071A (en) | 1999-01-13 |
| CA2238096C (en) | 2008-02-12 |
| WO1997021959A1 (en) | 1997-06-19 |
| PL328697A1 (en) | 1999-02-15 |
| IL119728A (en) | 2000-10-31 |
| IL119728A0 (en) | 1997-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040414 Termination date: 20121208 |