WO2012146345A1 - Vorwärmeeinrichtung - Google Patents
Vorwärmeeinrichtung Download PDFInfo
- Publication number
- WO2012146345A1 WO2012146345A1 PCT/EP2012/001543 EP2012001543W WO2012146345A1 WO 2012146345 A1 WO2012146345 A1 WO 2012146345A1 EP 2012001543 W EP2012001543 W EP 2012001543W WO 2012146345 A1 WO2012146345 A1 WO 2012146345A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- preheating device
- nozzle
- opening
- combustion
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K23/00—Alumino-thermic welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
- F23K5/007—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/44—Preheating devices; Vaporising devices
- F23D11/441—Vaporising devices incorporated with burners
- F23D11/443—Vaporising devices incorporated with burners heated by the main burner flame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/26—Railway- or like rails
Definitions
- the invention relates to a preheating device according to the preamble of claim 1.
- the rail ends, the surrounding molds of the mold used for welding and the materials used for sealing have to be preheated before pouring the liquid steel in order to remove moisture and ensure reliable welding To ensure rail ends.
- a gaseous or liquid fuel is reacted with air or oxygen.
- oxy-fuel burners are regularly used with a gaseous fuel such. As a propane-butane mixture or acetylene and pure oxygen. Alternatively, burners are also known which are operated with gasoline and compressed air.
- a disadvantage of this type of preheating with gaseous fuels is the need to carry heavy and expensive gas cylinders, which must be equipped with a complex pressure regulation.
- the use of gasoline and compressed air burners requires the delivery of a heavy and expensive compressed air unit, which also requires an external power supply.
- Document WO 00/76713 A1 discloses a preheating device operable with liquid gas and intended for the aluminothermic welding of two rail ends, which can be placed on a casting mold surrounding the rail ends.
- This consists of a gas cartridge holding frame with a burner whose outlet opening above a pouring opening of two mold halves existing mold is located.
- an evaporator block composed of a solid-phase evaporation block traversed by a line section and an evaporator composed of copper which adjoins it in the direction of the gas cartridge in the direction of the gas cartridge.
- the preheater is operated in the preheating of the mold such that the hot combustion gases flow from above into the mold, flow through the mold to finally exit from lateral channels. There is a risk here that these exiting and then rising combustion gases mix with the air intended for the combustion process of the burner, thereby reducing the developed heat output of the burner.
- a gas cartridge equipped, in particular for brazing certain burner unit known which consists of a, adjoining a gas supply, represented by a check valve pressure booster, an adjoining this, consisting of a brass body and by lines pulled evaporation device and a specific for mixing with ambient air, tubular combustion chamber, which surrounds the evaporation device on the outside.
- the aim is complete evaporation of the
- Liquefied gas characterized in that via the metallic shell of the combustion chamber heat which is developed in the combustion chamber due to the combustion process, is transferred to the brass body.
- the fact that the gas enters the evaporation device under a pressure determined by the characteristic of the check valve should also have the effect of supporting the burner output.
- this known burner unit permits position-independent use because of the pressure booster - after the combustion chamber is provided with lateral openings intended for entry of combustion air, it can not be reliably ruled out in the case of vertical use in the aluminothermic welding that combustion gases, which have flowed through the mold, are sucked and reduce the heat output of the burner.
- the object of the invention to design a small-sized, operable with gas, especially liquefied gas, no external power supply, powerful, weather-independent usable preheating, which can be used without the need to carry complicated and expensive and heavy additional equipment.
- This object is achieved with such a preheating device by the features of the characterizing part of claim 1.
- the preheating device has hereafter a directly upstream of an outflow opening for the combustion gases combustion chamber, wherein the evaporator is in this room, thus in a heat exchange with the combustion gases standing.
- the evaporator which is located between the nozzle and the outflow, is subject in this way an effective heating, so that a complete and reproducible and weather-independent evaporation of the liquefied gas can be achieved.
- the achievable heat output of the device is thus not affected by a more or less perfect evaporation according to the prevailing temperature conditions.
- the housing has according to the features of claims 2 and 3 on a lower side, the outflow opening enclosing portion for insertion into a, molded into the facing upper side of the mold opening "
- the housing and thus the preheating device thus occupy a fixed operating position on the casting mold, which defines the distance between the outflow opening and the upper sides of the rail ends to be welded. In this way it is ensured that with repeated use of the preheating always the same preheating conditions are shown.
- said portion is preferably secured in a form-fitting manner, so that a reliable and stable operating position is established.
- said opening may be the pouring opening of the casting mold.
- the housing of the device is provided according to the features of claim 4 with at least one laterally projecting, intended for the introduction of combustion air into the combustion chamber pipe socket. It is essential that immediately under ambient conditions combustion air is used, which is sucked in the evolved through the outflow combustion gases in the otherwise closed closed housing developed negative pressure. This results in a relatively simple construction of the device whose operation is also simple, since in departure from the prior art presented at the beginning of carrying heavy and expensive
- the features of claim 5 are directed to the further embodiment of the housing, here the attachment point of at least one pipe socket. After this is arranged at a distance from the nozzle on its side facing away from the discharge port, the combustion chamber is characterized by uniform, enabling optimum mixing of combustion air and vaporized liquid gas flow conditions.
- the evaporator is formed according to the features of claim 6 by extending along the inner wall of the housing within the combustion chamber line arrangement, which is thus in a planar heat exchange with, the core cross section of the example, global cylindrical housing flowing combustion gases.
- the housing is arranged according to the features of claim 7 for mounting a liquid gas cartridge, wherein at this point at the same time a connection with the facing end of the liquid gas supply line is present.
- a liquefied gas line can generally also be connected at this location.
- the lateral extent of the particular intended for the introduction of combustion air pipe socket is created with the proviso that on its inlet virtually no, laterally emerging from a mold during a preheating combustion gases can be sucked. In this way, a contribution to the representation of stable conditions of the combustion process and thus a reproducible heat output is given.
- the features of claim 9 are directed to a possible increase in performance of the burner by introducing additional combustion air by means of a fan in the housing.
- a fan in the housing.
- a battery-operated fan can be used. Although this measure increases the weight of the preheater, but only slightly compared to a motor-driven compressor unit.
- FIG. 1 shows a side view of the preheating device according to the invention placed on a casting mold
- FIG. 1 shows a side view of the preheating device in a plane I-II of FIG. 1.
- 1, 2 in FIG. 1 designate two rail ends to be welded together, whose opposite end faces spaced around the welding gap are located within a casting mold 3 consisting of two mold halves 4, 5 (FIG. 2).
- the casting mold 3 surrounds a casting chamber in a manner known per se, which has in the upper side 6 a pouring opening and ventilation openings which are in continuous connection with one another via the pouring space.
- 7 denotes a preheating device according to the invention, which consists of a nozzle 8, a liquid gas supply line 9 and an evaporator 10, all of these components being arranged in a globally cylindrical housing 12 forming an outflow opening 11 on the underside.
- the housing 12 forms a section 22 which can be inserted into an opening formed in the upper side 6 of the casting mold 3 and secured in a form-fitting manner. Be this opening may be the said pouring opening - but there is also another opening into consideration.
- the housing 12 experiences a secure hold in this way, with the further advantage that the position of the outflow opening 11 is positioned at a reproducible distance above the rail surface, so that correspondingly reproducible preheating arise.
- the housing 12 and the diessiggaszu réelletechnisch 9 may be in a conventional manner with a liquid gas cartridge, not shown in the drawing.
- a liquid gas cartridge not shown in the drawing.
- two of the housing 12 radially projecting pipe sockets are designated, which form inlet openings for combustion air at their free ends and which are in continuous communication with the interior of the housing 12.
- the outlet opening 15 of the nozzle 8 is located within the housing 12 at a distance in front of the outflow opening 11, whereby a combustion chamber is defined, and the nozzle 8 is formed with the pipe, which is guided in a spiral manner in the peripheral area along the inside of the housing 12 Evaporator 10 in such a way that the liquid gas guided via the remplissiggaszumoltechnisch 9 first enters via the nozzle 8 in the evaporator 10, which is located on the, the outlet opening tion 11 facing side of the nozzle 8, thus extending within the combustion chamber, in this case is evaporated in order to reach in this state via the outlet opening 15 of the nozzle 8 in the housing 12.
- the housing 12 is, apart from the pipe socket 13, 14 and the outflow opening 11, formed closed.
- Combustion gases flow through the casting space, with heat transfer on its walls and evaporation of existing moisture, in order to subsequently exit again in a substantially vertically ascending manner via lateral ventilation openings in the direction of the arrows 18, 19.
- the length of the tube 12 with respect to the radially extending tube portions 13, 14 is applied in accordance with the usual dimensions of the mold 3, in particular the top vents so that their inlet openings are outside a zone in which still combustion exhaust gases can be sucked.
- This means that the combustion air introduced into the pipe sections 13, 14 in the direction of the arrows 20 is suitable for representing perfect combustion conditions within the housing 12, so that with the liquid gas emerging from the outlet opening 15 of the nozzle 8 in vapor form an optimally combustible gas Vapor mixture is formed.
- the burner flame 17 passes through the casting space within the mold 3 from top to bottom to then emerge from each of said top vents in the form of a flame 21.
- the evaporator 10 viewed in the direction of flow of the combustion gases, directly adjoins the section 8 receiving the nozzle 8 within the housing 12, thus in the said combustion chamber in which the combustion process is initiated, it is ensured that for operation the evaporator 10 is provided in a sufficient manner heat, so that regardless of the prevailing weather, a complete evaporation of the liquefied gas is always achievable.
- additional combustion air can be introduced into the housing 12 via at least one of the pipe sockets 13, 14 by means of a battery-operated fan.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280019852.4A CN103561898A (zh) | 2011-04-23 | 2012-04-07 | 预热装置 |
CA2832251A CA2832251A1 (en) | 2011-04-23 | 2012-04-07 | Preheating device |
EP12720093.9A EP2701874A1 (de) | 2011-04-23 | 2012-04-07 | Vorwärmeeinrichtung |
RU2013152156/02A RU2013152156A (ru) | 2011-04-23 | 2012-04-07 | Подогреватель |
US14/113,291 US20140045134A1 (en) | 2011-04-23 | 2012-04-07 | Preheating Device |
AU2012247804A AU2012247804B2 (en) | 2011-04-23 | 2012-04-07 | Preheating device |
JP2014508699A JP2014512962A (ja) | 2011-04-23 | 2012-04-07 | 予熱装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202011005561U DE202011005561U1 (de) | 2011-04-23 | 2011-04-23 | Vorwärmeinrichtung |
DE202011005561.2 | 2011-04-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012146345A1 true WO2012146345A1 (de) | 2012-11-01 |
Family
ID=45020402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/001543 WO2012146345A1 (de) | 2011-04-23 | 2012-04-07 | Vorwärmeeinrichtung |
Country Status (9)
Country | Link |
---|---|
US (1) | US20140045134A1 (de) |
EP (1) | EP2701874A1 (de) |
JP (1) | JP2014512962A (de) |
CN (1) | CN103561898A (de) |
AU (1) | AU2012247804B2 (de) |
CA (1) | CA2832251A1 (de) |
DE (1) | DE202011005561U1 (de) |
RU (1) | RU2013152156A (de) |
WO (1) | WO2012146345A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104138299B (zh) * | 2014-08-22 | 2017-08-08 | 吉利 | 全可调式托槽及托槽矫正系统与牙齿正畸矫正方法 |
US10464164B2 (en) * | 2017-11-17 | 2019-11-05 | Orgo-Thermit Inc. | Rail welding crucible and cap with an oxygen/propane gas rail-preheating burner ignited reaction starter mix |
CN109048125A (zh) * | 2018-06-29 | 2018-12-21 | 施密特钢轨技术(昆山)有限公司 | 一种钢轨铝热焊接智能预热机构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2182765A (en) | 1985-11-08 | 1987-05-20 | Taymar Ltd | Gas burner assembly |
DE4021819A1 (de) | 1989-08-23 | 1991-02-28 | Barthel Gmbh | Gasbrenner |
WO2000076713A1 (de) | 1999-06-14 | 2000-12-21 | Elektro-Thermit Gmbh & Co. Kg | Vorrichtung zum vortrocknen des schweissbereiches einer schweissform |
DE102009026266A1 (de) | 2009-07-29 | 2011-02-03 | Webasto Ag | Mobiles Heizgerät |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1580383A (en) * | 1976-05-11 | 1980-12-03 | Exxon France | Burner for liquid fuel |
ES2114365B1 (es) * | 1994-04-07 | 1999-03-01 | Kobol Sa | Sistema de control de soldadura al fuego con material de aportacion. |
FR2743319B1 (fr) * | 1996-01-05 | 1999-05-28 | Railtech Int | Moule de soudure et dispositif de prechauffage destine a cooperer avec celui-ci |
-
2011
- 2011-04-23 DE DE202011005561U patent/DE202011005561U1/de not_active Expired - Lifetime
-
2012
- 2012-04-07 CA CA2832251A patent/CA2832251A1/en not_active Abandoned
- 2012-04-07 WO PCT/EP2012/001543 patent/WO2012146345A1/de active Application Filing
- 2012-04-07 AU AU2012247804A patent/AU2012247804B2/en not_active Ceased
- 2012-04-07 US US14/113,291 patent/US20140045134A1/en not_active Abandoned
- 2012-04-07 JP JP2014508699A patent/JP2014512962A/ja active Pending
- 2012-04-07 CN CN201280019852.4A patent/CN103561898A/zh active Pending
- 2012-04-07 EP EP12720093.9A patent/EP2701874A1/de not_active Withdrawn
- 2012-04-07 RU RU2013152156/02A patent/RU2013152156A/ru not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2182765A (en) | 1985-11-08 | 1987-05-20 | Taymar Ltd | Gas burner assembly |
DE4021819A1 (de) | 1989-08-23 | 1991-02-28 | Barthel Gmbh | Gasbrenner |
WO2000076713A1 (de) | 1999-06-14 | 2000-12-21 | Elektro-Thermit Gmbh & Co. Kg | Vorrichtung zum vortrocknen des schweissbereiches einer schweissform |
DE102009026266A1 (de) | 2009-07-29 | 2011-02-03 | Webasto Ag | Mobiles Heizgerät |
Also Published As
Publication number | Publication date |
---|---|
US20140045134A1 (en) | 2014-02-13 |
CN103561898A (zh) | 2014-02-05 |
CA2832251A1 (en) | 2012-11-01 |
RU2013152156A (ru) | 2015-05-27 |
EP2701874A1 (de) | 2014-03-05 |
DE202011005561U1 (de) | 2011-10-26 |
JP2014512962A (ja) | 2014-05-29 |
AU2012247804B2 (en) | 2014-12-11 |
AU2012247804A1 (en) | 2013-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2701874A1 (de) | Vorwärmeeinrichtung | |
DE102005034812A1 (de) | Lufteinlassvorrichtung eines Luftfilters für einen Behälter | |
EP1269074A1 (de) | Zweistoff-brenner mit venturirohr-brennstoffzerstäubung und venturidüse zum zerstäuben von flüssigem brennstoff | |
WO2020102841A1 (de) | Brennstoffzellensystem und verfahren zum temperieren eines brennstoffzellensystems | |
EP3712499A1 (de) | Brenneranordnung | |
EP2330325A2 (de) | Retortenofen zur Wärmebehandlung von metallischen Werkstücken | |
EP2411634B1 (de) | System zum einleiten von kraftstoffen in den abgasstrang eines kraftfahrzeugs | |
EP2835582B1 (de) | Transportable Anlage und Verfahren zur Verbrennung von unerwünschten Gasen | |
DE3105552C2 (de) | Einspritzvorrichtung für flüssigen Brennstoff | |
DE10104840C2 (de) | Vorrichtung zur Weiterleitung von aus Verbrennungsmotoren tretenden Abgasen | |
DE1503676C3 (de) | Einrichtung zur Erzeugung von Druckluft für aluminothermisches Schweißen | |
DE2351475C2 (de) | Verfahren zum Verdampfen einer kryogenen Flüssigkeit | |
EP0241895B1 (de) | Vorrichtung zum Reinigen, Schmelzen und Verbreitern von Fugen oder Rissen in Asphaltstrassendecken | |
AT405171B (de) | Verfahren zum zumindest teilweisen entfernen von luft aus einem flüssiggastank und druckluft-luftpumpe auf der basis eines venturirohres zur verwendung bei einem solchen verfahren | |
AT52162B (de) | Vorrichtung zum Abfüllen von Flüssigkeiten aus einem unter Luftdruck stehenden Behälter. | |
DE266264C (de) | ||
DE8412698U1 (de) | Geraet zum erwaermen und transportieren von fluessiggasflaschen | |
DE102004033618B4 (de) | Fahrzeugheizgerät | |
WO2023215928A1 (de) | Vorheizstation zum vorheizen einer schmelzetransportvorrichtung | |
DE207824C (de) | ||
DE1805497C3 (de) | Vorrichtung zur Verbrennung von flüssigem Brennstoff, insbesondere Schweröl | |
DE1246151B (de) | Strahlheizrohr mit in einem Rohrschenkel angeordneten Waermetauscher | |
DE4006806A1 (de) | Brenner mit abgasrueckfuehrung, insbesondere geblaesebrenner | |
DE102021005382A1 (de) | Vorrichtung zum Erwärmen von Raumluft und einer Flüssigkeit | |
AT124334B (de) | Teer- oder Bitumensprengwagen. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12720093 Country of ref document: EP Kind code of ref document: A1 |
|
DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2012720093 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2832251 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2014508699 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14113291 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2012247804 Country of ref document: AU Date of ref document: 20120407 Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2013152156 Country of ref document: RU Kind code of ref document: A |