CN1258055C - Method and device for recovering waste heat in preheating unit of hot oil boilers - Google Patents
Method and device for recovering waste heat in preheating unit of hot oil boilers Download PDFInfo
- Publication number
- CN1258055C CN1258055C CNB018174264A CN01817426A CN1258055C CN 1258055 C CN1258055 C CN 1258055C CN B018174264 A CNB018174264 A CN B018174264A CN 01817426 A CN01817426 A CN 01817426A CN 1258055 C CN1258055 C CN 1258055C
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- CN
- China
- Prior art keywords
- boiler
- boiler body
- air
- heat
- burner
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0084—Combustion air preheating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
- F23M5/085—Cooling thereof; Tube walls using air or other gas as the cooling medium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
Abstract
The object of this invention is to provide a method and device for recovering waste heat in a preheating unit of hot oil boilers. The device of this invention has air feed pipes (3) transversely set in the body (1) of a boiler. Shielding rings (5), each having a cutout (4), are circumferentially mounted around the body (1) at regular intervals, with the cutouts (4) alternately positioned at the top and bottom portions of the body (1). The boiler body (1) is housed in an outer casing (6) to define a channel (7) by the rings (5) and the casing (6). The outer casing (6) is covered with an insulating cover (8). An air guide pipe extends from the outlet end of the channel (7) to a burner inside the boiler body (1), thus feeding hot air from the channel (7) to the burner and recovering waste heat.
Description
Technical field
The present invention relates to hot oil boiler, especially relate to a kind of method and apparatus that is used for reclaiming used heat at the preheating unit of hot oil boiler, it collects used heat and the useless combustion gas that is produced by boiler, and then with in their supply boilers, so that as the required combustion air of this boiler work, thereby can utilize used heat and useless combustion gas again, so that produce energy-saving effect.
Background technology
Usually, hot oil boiler is designed in its body double-wall pipe is arranged, and provides burner at its first end of body.Specific artificial oil flows in two-tube spiral.Hot oil boiler is according to following steps work.Just, when the ignition combustion device, air flows into the combustion chamber, so that take fire processing.Handle the air of heating discharges from boiler through two-tube or three pipes (double or triple tube) by burning.At this moment, handling the cigarette that produces by this burning discharges from boiler by flue box.
But, the problem of plain cylindrical furnace is that it has a large amount of heat loss, because discharge by boiler body irrelevantly at the hot-air that adds of boiler internal.Therefore, such boiler produces undesirable energy dissipation, and therefore, the economy of work is relatively poor.
Recently, in order to address the above problem, a kind of method with heat-insulating cover covering boiler body has been proposed, so that prevent heat loss by the insulation effect of heat-insulating cover.But the temperature of the combustion gas that discharges from boiler is very high, and therefore, heat-insulating cover can not produce gratifying effect.
Just, when being installed in the burner igniting of boiler body inside, the pipe of deep fat is equipped with in its heating.Like this, add hot-air and flue gas through being determined at the space between pipe and the boiler body, discharge from boiler by flue box then by what burning handle to produce.
At this moment, extraneous air flows in the boiler, so that burning is loaded on the oil in the burner.The ordinary burner that is included in such boiler receives cold extraneous air, and makes the boiler internal cooling.
Therefore, when burner igniting heating boiler, cold air flows in the burner, thereby produces undesirable heat loss.Therefore, common boiler has such problem, and promptly when needs made this boiler work, this boiler can not be heated to suitable temperature at short notice.
Disclosure of an invention
Therefore, the present invention considers the problems referred to above that occur in the prior art, the purpose of this invention is to provide a kind of method and apparatus that is used for reclaiming at the preheating unit of hot oil boiler used heat, and this hot oil boiler comprises: boiler body; A plurality of air supply pipes, this air supply pipe lateral arrangement is in the flue box of boiler body; A plurality of shading rings, this shading ring has otch, and circumferential hoop is installed around boiler body, and makes otch alternately be arranged in the top and the bottom of body; And external shell, this external shell contains boiler body, so that determine air duct by this ring and housing, thereby can be used to waste heat from boiler along the air duct flow air, the air that will heat is then supplied with in the burner of boiler body inside, thereby can avoid undesirable energy loss.
Brief description of drawings
By detailed description below in conjunction with accompanying drawing, can more clearly understand above and other objects of the present invention, feature and other advantage, in the accompanying drawing:
Fig. 1 is the perspective view of expression hot oil boiler of the present invention;
Fig. 2 is the vertical sectional view of hot oil boiler of the present invention;
Fig. 3 is included in the sectional view of the shading ring in the hot oil boiler of the present invention, and each shading ring all has otch, wherein heat-insulating cover and not shown;
Fig. 4 is the detailed sectional view of the air duct that formed by the shading ring that is installed on the boiler body of the present invention of expression;
Fig. 5 is included in the sectional view of the flue box in the hot oil boiler of the present invention; And
Fig. 6 is the front view of the hot oil boiler of another embodiment of the present invention.
Implement best mode of the present invention
Below with reference to accompanying drawing, in the accompanying drawings, the same reference numerals that is used for different accompanying drawings is represented identical or similar parts.
Method of the present invention, as in the preheating unit of hot oil boiler, to reclaim used heat, this hot oil boiler has: boiler body, this boiler body have double-walled or three wall boiler tubes, be installed in the burner in first end of this boiler body and be installed in flue box in second end of this boiler body; And heat-insulating cover, this heat-insulating cover covers this boiler body; This method may further comprise the steps: when the air of supplying with by air supply pipe is used to waste heat air from boiler body when the air duct that is determined at the boiler body outside flows, this air supply pipe is horizontally installed in this boiler body in the mode of the flue box by boiler body; And the air that will heat is supplied with the burner of boiler body inside.
Device of the present invention, that be used for reclaiming at the preheating unit of hot oil boiler used heat comprises: boiler body 1, a plurality of air supply pipe 3, a plurality of shading ring 5, external shell 6 and air guiding tube.Air supply pipe 3 is horizontally installed in the flue box 2 of boiler body 1.Shading ring 5 has otch 4, installs around boiler body 1 with rule interval circumferential hoop, and makes otch 4 alternately be arranged in the top and the bottom of body 1.External shell 6 contains boiler bodies 1, so as by encircle 5 and housing 6 determine air duct 7, and this external shell 6 is by being used for 8 coverings of adiabatic heat-insulating cover.The air guiding tube stretches to burner in boiler body inside from the port of export of passage 7, so as with hot-air from passage 7 supplied burner.Reference number 12 expression boiler tubes are introduced here no longer in detail.
Preferably, helical shield ring 9 forms the single-screw ring that circumferential hoop is installed around boiler body 1, and external shell 10 contains body 1, so that determine air duct 11 by helical ring 9 and housing 10.
Introduce the operation of hot oil boiler of the present invention below.
The burner that is installed in boiler body 1 inside is lighted a fire by connecting boiler, thereby produces hot-air.Hot-air and combustion product gases from burner heat the two-tube outside that is installed in boiler internal, then the gap through determining between this pipe and the body 1.Then, hot-air and combustion product gases flow in the flue box 2 of boiler body 1, discharge from boiler by flue box 2 again.
At this moment, used heat discharges by flue box 2, adds simultaneously to be thermoformed into multilayer and a plurality of air supply pipes 3 of lateral arrangement in the flue box 2 of boiler body 1.
When air passed through air supply pipe 3 supplies from the outside, air flowed along the passage 7 that is determined at boiler body 1 outside then mainly by the waste heat in the flue box 2.
At this moment, when boiler body 1 is heated by burner, air and residue waste heat air supply pipe 3, mobile along the passage 7 that is determined between boiler body 1 and the external shell 6 simultaneously towards the port of export of passage 7, thus heat this boiler continuously.
Because by have otch 4 and with rule at interval the shading ring 5 installed around boiler body 1 of circumferential hoop determine passage 7 between boiler body 1 and the external shell 6, air can be mobile along this passage 7, passes through the otch 4 of shading ring 5 simultaneously.
As mentioned above, each shading ring 5 has otch 4, and circumferential hoop is installed around boiler body 1.At this moment, otch 4 alternately is arranged in the top and the bottom of body 1, and like this, air so that evenly heat this body 1, thereby can keep the temperature of boiler even along current downflow on the body 1.
Because the air of heating is supplied with and is installed in the burner of boiler body 1 inside like this, make the burner igniting subsequently, therefore, air is supplied with in the boiler once more, and is used further to the heating kettle boiler tube.
External shell 6 is covered by heat-insulating cover 8, and like this, the passage 7 that air flows through keeps warm, thereby owing to making the minimum energy of having saved of heat loss.
Preferably, the air guiding tube that stretches out from channel outlet can be connected with the exterior line structure of heating system, to replace burner.In addition, also preferably hot-water line is installed in flue box, to replace air supply pipe.Such structure can effectively reclaim used heat from boiler.
Represented another embodiment of the present invention in Fig. 6, shading ring 9 forms the single-screw ring that circumferential hoop is installed around boiler body 1, and is moving along helical duct 11 from the air that air supply pipe 3 is supplied with like this, heated by the used heat that dissipates from boiler body 1 simultaneously.Like this in Jia Re the air supplied burner, thereby reach effect same as the previously described embodiments.
Industrial applicibility
As mentioned above, the invention provides a kind of method and apparatus that is used for reclaiming at the preheating unit of hot oil boiler used heat, this hot oil boiler comprises: boiler body; A plurality of air supply pipes, this air supply pipe lateral arrangement is in the flue box of boiler body; A plurality of shading rings, this shading ring has otch, and circumferential hoop is installed around boiler body, and makes otch alternately be arranged in the top and the bottom of body; And external shell, this external shell contains boiler body, so that determine air duct by this ring and housing, thereby can be used to waste heat from boiler along the air duct flow air, the air that will heat is then supplied with in the burner of boiler body inside.Device of the present invention is owing to simple in structure being easy to made.This device can also be avoided undesirable energy loss owing to reclaiming used heat, thereby realizes the maximum thermal efficiency, avoids undesirable waste of fuel simultaneously and reduces working cost.
Introduce the preferred embodiments of the present invention although illustrate for example, it will be appreciated by those skilled in the art that under the situation that does not break away from the spirit and scope of the present invention of in additional claim, determining, can carry out various variations, interpolation and alternative.
Claims (4)
1. method that in the preheating unit of hot oil boiler, reclaims used heat, this hot oil boiler has: boiler body, this boiler body have double boiler pipe or three boiler tubes, be installed in the burner in first end of this boiler body and be installed in flue box in second end of this boiler body; And heat-insulating cover, this heat-insulating cover covers this boiler body; This method may further comprise the steps:
When the air of supplying with by air supply pipe flows along the air duct that is determined at the boiler body outside, be used to waste heat air from boiler body, this air supply pipe is horizontally installed in this boiler body in the mode of the flue box by boiler body; And
The air of this heating is supplied with the burner of boiler body inside.
2. device that is used for reclaiming at the preheating unit of hot oil boiler used heat comprises:
Boiler body;
A plurality of air supply pipes, this air supply pipe are horizontally installed in the flue box of boiler body;
A plurality of shading rings, each shading ring has otch, and circumferential hoop is installed around boiler body, and otch alternately is arranged in the top and the bottom of body simultaneously;
External shell, this external shell contains boiler body, so that determine air duct by this ring and housing, and is covered by the heat-insulating cover that is used for thermal insulation; And
The air guiding tube, this air guiding tube stretches to the burner of boiler body inside from the port of export of described passage, thereby with hot-air from this passage supplied burner.
3. the device that is used to reclaim used heat according to claim 2, wherein: described shading ring is installed around boiler body with rule interval circumferential hoop.
4. the device that is used to reclaim used heat according to claim 2, wherein: described shading ring is the helical shield ring, form the single-screw ring that circumferential hoop is installed around boiler body, described external shell contains this body, so that determine air duct by this helical ring and housing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2000-0061100A KR100377971B1 (en) | 2000-10-17 | 2000-10-17 | The device and method of recollecting wasteed heat of preheating device for industrial heat alternation boiler |
| KR2000/61100 | 2000-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1469982A CN1469982A (en) | 2004-01-21 |
| CN1258055C true CN1258055C (en) | 2006-05-31 |
Family
ID=19693972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018174264A Expired - Fee Related CN1258055C (en) | 2000-10-17 | 2001-10-17 | Method and device for recovering waste heat in preheating unit of hot oil boilers |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR100377971B1 (en) |
| CN (1) | CN1258055C (en) |
| AU (1) | AU2001296076A1 (en) |
| WO (1) | WO2002033316A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144612B (en) * | 2007-10-09 | 2010-05-19 | 西安交通大学 | Skid-mounted type fuel oil supercritical pressure direct-flow gas injection boiler |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2854229A1 (en) | 2003-04-25 | 2004-10-29 | Realisation Mecaniques Engenee | Heat exchanger for use in gas boiler, has primary and secondary heat exchanger arranged to transverse flow of hot air towards interstice of exchangers, and duct passing another flow of hot air into secondary exchanger |
| AT508816A3 (en) * | 2009-08-21 | 2012-01-15 | Vaillant Group Austria Gmbh | COMBINED AIR SUPPLY AND EXHAUST GUIDE OF A HEATER |
| KR101247620B1 (en) * | 2012-12-11 | 2013-04-03 | 주식회사 부-스타 | Hot water boiler of negative pressure and steam type with low pressure low nox burner |
| KR101322219B1 (en) * | 2012-12-11 | 2013-10-28 | 주식회사 부-스타 | Waste heat recovery apparatus for hot water boiler of negative pressure and steam type |
| KR101329151B1 (en) | 2013-08-06 | 2013-11-14 | 강정순 | The industrial boiler with roaster of two way pipe type and tube header |
| KR102166304B1 (en) | 2020-06-23 | 2020-10-16 | (주)조일비엔피 | Fouling removal device for horizontal heating medium boiler |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4987881A (en) * | 1982-09-30 | 1991-01-29 | Narang Rajendra K | Fuel burning furnace |
| US4558689A (en) * | 1984-06-25 | 1985-12-17 | Mccann Artie | Combustion gas heat recovery apparatus |
| KR950004392Y1 (en) * | 1992-01-08 | 1995-05-30 | 황병규 | Air heater |
-
2000
- 2000-10-17 KR KR10-2000-0061100A patent/KR100377971B1/en active IP Right Grant
-
2001
- 2001-10-17 AU AU2001296076A patent/AU2001296076A1/en not_active Abandoned
- 2001-10-17 CN CNB018174264A patent/CN1258055C/en not_active Expired - Fee Related
- 2001-10-17 WO PCT/KR2001/001744 patent/WO2002033316A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144612B (en) * | 2007-10-09 | 2010-05-19 | 西安交通大学 | Skid-mounted type fuel oil supercritical pressure direct-flow gas injection boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1469982A (en) | 2004-01-21 |
| KR100377971B1 (en) | 2003-03-31 |
| KR20010016050A (en) | 2001-03-05 |
| AU2001296076A1 (en) | 2002-04-29 |
| WO2002033316A1 (en) | 2002-04-25 |
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| 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: 20060531 Termination date: 20111017 |