PL111574B1 - Heating unit in particular for asphalt melting pots - Google Patents

Heating unit in particular for asphalt melting pots Download PDF

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Publication number
PL111574B1
PL111574B1 PL20097177A PL20097177A PL111574B1 PL 111574 B1 PL111574 B1 PL 111574B1 PL 20097177 A PL20097177 A PL 20097177A PL 20097177 A PL20097177 A PL 20097177A PL 111574 B1 PL111574 B1 PL 111574B1
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PL
Poland
Prior art keywords
heating
container
combustion chamber
boiler
heating unit
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Application number
PL20097177A
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Polish (pl)
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PL200971A1 (en
Inventor
Andrzej Konkiel
Jerzy Prois
Andrzej Ingarden
Original Assignee
Zaklady Budowy I Naprawy Maszy
Priority date (The priority date 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 date listed.)
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Application filed by Zaklady Budowy I Naprawy Maszy filed Critical Zaklady Budowy I Naprawy Maszy
Priority to PL20097177A priority Critical patent/PL111574B1/en
Publication of PL200971A1 publication Critical patent/PL200971A1/en
Publication of PL111574B1 publication Critical patent/PL111574B1/en

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Description

Przedmiotem wynalazku jest urzadzenie grzewcze do maszyn drogowych, jak kotlów do topienia bitumu, skrapiarek bitumu, a zwlaszcza kotlów do asfaltu lanego.Stan techniki. Znane sa kotly do asfaltu lanego ogrzewane palnikiem olejowym, w których pod pojemnikiem z bitumem -umieszczone jest paleni¬ sko wymurowane ceramicznym materialem ognio¬ trwalym, a wzdluz polbocznicy • pojemnika usytuo¬ wane sa kanaly dymne, którymi spalany przeply¬ wajac do komina ogrzewaja pojemnik. Rozwiaza¬ nie takie znane jest z polskich opisów patento¬ wych-nr 43 766 i nr 61847 w ki. 19c. Niedogod¬ noscia tego rozwiazania jest duza bezwladnosc cieplna ukladu grzewczego, ico powoduje koksowa^ nie resztek masy po opróznieniu pojemnika, jak i mala odpornosc wymurówki ceramicznej na wstrzasy w czaisie transportu kotla.. Ciezar wymurówki ceramicznej zwieksza znacz¬ nie ciezar kotla, co przy ograniczeniach wynikaja¬ cych z przepisów drogowych zmniejsza ladownosc kotla. Znane sa tez rozwiazania", w których pal¬ nik umieszczony jest w rurowej komorze spalania znajdujacej sie w palenisku, przy czym na polbocz¬ nicy rury wykonane sa otwory, którymi spaliny wydostaja sie do paleniska i ogirzewaja pobocz- nice pojemnika. Rozwiazanie takie znane jest z francuskiego opisu patentowego nr 1.3i90.926kl.EDle.Niedogodnoscia tego rozwiazania , jest nierówno- 10 15 20 25 30 mierny rozklad temperatury wzdluz pojemnika kotla, oraz zbytJkrótka droga spalin pomiedzy ru¬ rowa komora spalania a kominem, co zmoiejisza wykorzystanie pojemnosci cieplnej spalin oraz ob¬ niza sprawnosc cieplna kotla.Zasadnicza niedogodnoscia obu rozwiazan jest ogrzewanie scian pojemnika z bitumem przez pro¬ mieniowanie, które nie zapewnia jednorodnej tem¬ peratury wzdluz pojemnika, powoduje miejscowe przegrzania pojemnika oraz obniza jakosc produ¬ kowanej rnaisy alsJfaltowej.Istota wynalazku.Istota wynalazku jest zastosowanie izolowanej cieplnie komory spalania umieszczonej w osi ko¬ lektora spalin w kanale grzewczym, oraz pozosta¬ wienie pomiedzy komora spalania a kolektorem spalin szczeliny, przez która zasysana jest czesc spalin z kanalu igrzewczego. Rozwiazanie takie za¬ bezpiecza pojemnik przed wymiana ciepla przez promieniowanie, a recyrkulacja spalin wywolana inzekcja przez szczeline pomiedzy komora spala¬ nia a kolektorem isjpalin znacznie zwieksza szyb¬ kosc przeplywu spalin przez 'kanaly grzewcze zwiekszajac konwekcyjny wspólczynnik wymiany ciepla i sprawnosc cieplna urzadzenia.Dodatkowa zaleta inzekcji czesci spalin ochlo¬ dzonych z kanalu grzewczego do kolektora spa¬ lin jest obnizenie temperatury spalin swiezych wyplywajacych z komory spalarnia, co zapewnia 111 574111 574 równomierny rozklad temper ad;ur wzdluz posocz¬ nicy 'kotla jak i zabezpiecza 'kolektor spalin i po- bocznice kotla pirzed przepaleniem zwiekszajac ich trwalosc.Zastosowanie izolowanej cieplnie komory spala¬ nia zapewnia uzyskanie -w jej wnetrzu wysokiej temperatury, a wiec szybkie i calkowite spalanie paliwa oraz eliminuje wplyw promieniowania o- twartego plomienia na sciany pojemnika.Objasnienie figur rysunku.Wynalaizek w przykladzie wykonania uwidocz¬ niony jest na rysunku na którym fig. 1 przedsta¬ wia pojemnik z urzadzaniem grzewczym w prze¬ kroju poprzecznym, natomiast fig. 2 przekrój po¬ dluzny przez palenisko i kanaly grzewcze wzdluz linii A—A oznaczonej na fig. 1.Opis wynalazku.Pod pojemnikiem 1 w kanale grzewczym 2 u- tworzonym przez pobocznice pojemnika 1, oslone zewnetrzna 3, przegrody wzdluzne 4 i 5 oraz den¬ nice 6 umieszczone sa symetrycznie izolowane cie¬ plnie komory spalania 7. Komory spalania 7 przy¬ twierdzone sa do dennicy 6, do której od zewnatrz przymocowane sa olejowe palniki 8.W osi komór spalania 7 znajduja sie rurowe ko¬ lektory spalin 9 umieszczone w przegrodach po¬ przecznych, przedniej 10 i tylnej 11, przy czym 10 20 przegroda przednia 10 zamyka przestrzen kanalu grzewczego 12, natomiast przegroda tylna 11 la¬ czy kanal grzewczy 12 z kanalem grzewczym 13.Rurowy kolektor spalin 9 zaslepiony na koncu po¬ siada na swojej pobocznicy otwory 14, którymi spaliny, przedostaja sie do kanalu grzewczego 13 i kanalem grzewczym 15 do komina 16.Czesc spalin z kanalu grzewczego 13 zostaje zassana przez szczeline 17 utworzona pomiedzy komora spalania 7 a rurowym .kolektorem spalin 9 do kolektora spalin 9, powodujac obnizenie tem¬ peratury w kolektorze spalin 9 jak i zwiekszenie szybkosci przeplywu spalin przez kanaly grzew¬ cze.Zastrzezenie patentowe Urzadzenie grzewcze zwlaszcza kotla do asfaltu lanego skladajace sie z palnika, kolektora spalin i kanalów grzewczych, znamienne tym, ze posia¬ da izolowana cieplnie koimiore spalania (7) usytuo¬ wana pod pojemnikiem (1) kotla w kanale grzew¬ czym (2), przy czym pomiedzy komora spalania (7), a kolektorem spalin (9) utworzona jest szczelina (17) do zasysania czesci spalin z kanalu grzewcze¬ go (13). w Ya Fig. I111974 13 k ^~ •—^ ii"""-"^ \\\( i i L^r- _ Tc" "^F= \ —^ *— ^ 35 / = / - \ 3fe P- I r V / ^i jla! / 7 JLL/ 12J -9J u // 10/ 17 Fig 2 PLThe subject of the invention is a heating device for road machines, such as bitumen melting boilers, bitumen sprinklers, and in particular mastic asphalt boilers. State of the art. There are also mastic asphalt boilers heated with an oil burner, in which a firebox lined with fire-resistant ceramic material is located under the bitumen container, and smoke channels are located along the sidewall of the container, through which the burned flowing into the chimney warms the container . Such a solution is known from Polish patents No. 43 766 and No. 61847 of the Polish patent. 19c. The disadvantage of this solution is the large thermal inertia of the heating system, which causes the residual mass to coke after emptying the container, as well as the low resistance of the ceramic lining to shocks during the transport of the boiler. The weight of the ceramic lining significantly increases the weight of the boiler, which in the case of limitations resulting from road regulations reduces the capacity of the boiler. There are also solutions "in which the burner is placed in a tubular combustion chamber located in the furnace, and openings are made on the side of the tube, through which the flue gas escapes into the furnace and heats the sides of the container. The disadvantage of this solution is the uneven temperature distribution along the boiler container, and the too short path of the exhaust gases between the tubular combustion chamber and the chimney, which makes it possible to use the heat capacity of the exhaust gases. and reduces the thermal efficiency of the boiler. The main disadvantage of both solutions is the heating of the walls of the bitumen container by radiation, which does not provide a uniform temperature along the container, causes local overheating of the container and reduces the quality of the produced alsifalt mixture. The essence of the invention. of the invention is the use of a heat-insulated combustion chamber located on the axis of the collector exhaust gas in the heating channel, and leaving a gap between the combustion chamber and the exhaust gas collector, through which part of the exhaust gas is sucked from the heating channel. Such a solution protects the container against heat exchange by radiation, and the exhaust gas recirculation caused by the injection through the gap between the combustion chamber and the exhaust collector increases the rate of exhaust gas flow through the heating channels, increasing the convective heat exchange rate and the thermal efficiency of the device. the injection of the part of the exhaust gases cooled from the heating duct to the flue gas collector is to lower the temperature of fresh exhaust gases flowing out of the incinerator chamber, which ensures an even distribution of temperature along the boiler sepsis and protects the exhaust collector and boiler sidings against burnout, increasing their durability. The use of a thermally insulated combustion chamber ensures high temperature in its interior, and thus quick and complete combustion of fuel, and eliminates the influence of radiation from an open flame on the walls of the container. Explanation of figures in the drawing. the performance will be shown 1 is a cross-sectional view of the container with a heating device, while FIG. 2 is a longitudinal section through the furnace and heating ducts along the line A-A marked in FIG. 1. Description of the invention. container 1 in the heating duct 2 formed by the sides of the container 1, the outer casing 3, longitudinal partitions 4 and 5 and the bottoms 6 are placed symmetrically heat-insulated combustion chambers 7. The combustion chambers 7 are attached to the bottom 6, to which the oil burners 8 are attached from the outside. In the axis of the combustion chambers 7 there are tubular exhaust manifolds 9 located in the front 10 and rear 11 transverse partitions, the front part 10 closing the space of the heating duct 12, while The rear partition 11 connects the heating duct 12 with the heating duct 13. The exhaust gas collector 9, plugged at the end, has openings 14 on its side, through which the fumes enter the heating duct 13 and the duct 15 to the chimney 16. Part of the flue gas from the heating duct 13 is sucked through the slot 17 formed between the combustion chamber 7 and the tubular flue gas collector 9 to the flue gas collector 9, thereby lowering the temperature in the flue gas collector 9 and increasing the flue gas flow rate through the ducts Heating device. Patent claim A heating device, in particular a mastic asphalt boiler, consisting of a burner, a flue gas collector and heating channels, characterized in that it has a heat-insulated combustion chamber (7) located under the boiler container (1) in the heating channel (2), a gap (17) is formed between the combustion chamber (7) and the exhaust gas collector (9) for sucking in a part of the exhaust gas from the heating duct (13). w Ya Fig. I111974 13 k ^ ~ • - ^ ii "" "-" ^ \\\ (ii L ^ r- _ Tc "" ^ F = \ - ^ * - ^ 35 / = / - \ 3fe P- I r V / ^ i jla! / 7 JLL / 12J -9J u // 10/17 Fig 2 PL

Claims (1)

1. Zastrzezenie patentowe Urzadzenie grzewcze zwlaszcza kotla do asfaltu lanego skladajace sie z palnika, kolektora spalin i kanalów grzewczych, znamienne tym, ze posia¬ da izolowana cieplnie koimiore spalania (7) usytuo¬ wana pod pojemnikiem (1) kotla w kanale grzew¬ czym (2), przy czym pomiedzy komora spalania (7), a kolektorem spalin (9) utworzona jest szczelina (17) do zasysania czesci spalin z kanalu grzewcze¬ go (13). w Ya Fig. I111974 13 k ^~ •—^ ii"""-"^ \\\( i i L^r- _ Tc" "^F= \ —^ *— ^ 35 / = / - \ 3fe P- I r V / ^i jla! / 7 JLL/ 12J -9J u // 10/ 17 Fig 2 PL1. Patent claim A heating device, in particular a mastic asphalt boiler, consisting of a burner, a flue gas collector and heating ducts, characterized in that it has a thermally insulated combustion chamber (7) located under the boiler container (1) in the heating duct (2), a slot (17) being formed between the combustion chamber (7) and the exhaust gas collector (9) for sucking in part of the exhaust gas from the heating duct (13). w Ya Fig. I111974 13 k ^ ~ • - ^ ii "" "-" ^ \\\ (ii L ^ r- _ Tc "" ^ F = \ - ^ * - ^ 35 / = / - \ 3fe P- I r V / ^ i jla! / 7 JLL / 12J -9J u // 10/17 Fig 2 PL
PL20097177A 1977-09-20 1977-09-20 Heating unit in particular for asphalt melting pots PL111574B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20097177A PL111574B1 (en) 1977-09-20 1977-09-20 Heating unit in particular for asphalt melting pots

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL20097177A PL111574B1 (en) 1977-09-20 1977-09-20 Heating unit in particular for asphalt melting pots

Publications (2)

Publication Number Publication Date
PL200971A1 PL200971A1 (en) 1979-06-04
PL111574B1 true PL111574B1 (en) 1980-09-30

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PL200971A1 (en) 1979-06-04

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