CA1203469A - Pot-type oil burner - Google Patents
Pot-type oil burnerInfo
- Publication number
- CA1203469A CA1203469A CA000427904A CA427904A CA1203469A CA 1203469 A CA1203469 A CA 1203469A CA 000427904 A CA000427904 A CA 000427904A CA 427904 A CA427904 A CA 427904A CA 1203469 A CA1203469 A CA 1203469A
- Authority
- CA
- Canada
- Prior art keywords
- pot
- air
- oil
- fuel oil
- pipe
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
- F23D5/12—Details
- F23D5/18—Preheating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D5/00—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel
- F23D5/02—Burners in which liquid fuel evaporates in the combustion space, with or without chemical conversion of evaporated fuel the liquid forming a pool, e.g. bowl-type evaporators, dish-type evaporators
- F23D5/04—Pot-type evaporators, i.e. using a partially-enclosed combustion space
- F23D5/045—Pot-type evaporators, i.e. using a partially-enclosed combustion space with forced draft
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Evaporation-Type Combustion Burners (AREA)
- Spray-Type Burners (AREA)
Abstract
TITLE OF THE INVENTION
POT-TYPE. OIL BURNER
ABSTRACT OF THE DISCLOSURE
A pot-type oil burner is disclosed which is capable of instantly carrying out fire-extinguishing without generating bad odor. The oil burner is constructed in a manner such that an oil supply pipe and an air supply pipe merge into a single pipe extending to a pot and the single pipe is provided at the end portion thereof with a nozzle pipe extending into the pot which allows a fuel oil carried on air to be ejected in the form of fine particles therefrom into the pot.
POT-TYPE. OIL BURNER
ABSTRACT OF THE DISCLOSURE
A pot-type oil burner is disclosed which is capable of instantly carrying out fire-extinguishing without generating bad odor. The oil burner is constructed in a manner such that an oil supply pipe and an air supply pipe merge into a single pipe extending to a pot and the single pipe is provided at the end portion thereof with a nozzle pipe extending into the pot which allows a fuel oil carried on air to be ejected in the form of fine particles therefrom into the pot.
Description
3~
BACKGROUND OF TIIE INVENTION
~ield of the Invention l'his invention relates to a pot-type oil burner, and more particularly to a pot-type oil burner adapted to be instantly Eire-extinguished and prevent the generation of bad odor during the fire-extinguishing operation.
Description oE the Prior Ar-t As widely lcnown in the art, a pot-type oil burner is generally constructed in a manner to supply a fuel oil such as kerosene directly to a pot and carry out vapori-zation, mixing and partial combustion of the fuel oil in the pot. A conventional oil burner oE such type is adapted to ensure normal combustion during the regular co~bustion operation. However, the conventional oil burner has a disadvantage that it is substan-tially impossible to instantaneously stop the vaporization, mixing and combustlon at the time of fire-extinguishing, so that the fire-extinguish operation requires a rela-tively long tlme and causes unstable combustion and the genera-tion of bad odor.
BRIEF SUMMARY OF THE INVENTION
The present invention has been made in view of the foregoing disadvantage of the prior art.
Accordingly, it is an object of the present invention -to provide a pot-type oil burner which is capable of instantaneously carrying out fire-extinguishing w-ithout generating bad odor.
It is another object of the present invention to provide a pot-type oil burner which is capable of readily suppressing abnormal combustion occurring in a pot and instantly accomplishing fire-extinguishing.
It is a further object of the present invention to provide a pot-type oil burner which is capable of ~f~3~
substantially completely preventing the generation of bad odor at the fire-extinguishing operation as well as instantly carrying out fire-extinguishing.
In accordance with the present invention, there is provided a pot-type oil burner comprising a pot having a heating means disposed therein and a plurality of through-holes formed at the side wall thereof so as to carry out vaporization, mixing and ignition of a fuel oil; an air supply means for supplying air to the pot; an oil supply means for supplying a fuel oil to the pot; an air pipe for introducing a part of air in the air supply means therethrough to the pot; and an oil pipe for introducing a fuel oil from the oil supply means therethrough to the pot; the air pipe and oil pipe merging into a single pipe extending to the pot, the single pipe having a nozzle means extending into the pot provided at the end portion thereof so that a fuel oil carried on air is ejected in the form of fine particles at a high velocity from the nozzle means into the pot, Preferably, the nozzle means is inserted through an opening formed at the side wall of the pot to have a larger dimension than a diameter of the nozzle means with a gap being defined therebetween which allows air to be supplied therethrough from the air supply means to the pot.
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects and many of the attendant advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
the single figure is a vertical sectional view showing an embodiment of a pot-type oil burner according to the present inven-tion.
D~TAIL~D D~SCRIPTION OF Tll~ P~EF~RR~D ~MBODIM~NT
Now, a pot-type oil burner accordiny -to the present invention will be described hereinafter with reference to the accompanyiny drawings.
/ The figure illustrates an embodiment of a pot-type oil burner according to the present invention wherein the oil burner is generally indicated by reference numeral 10.
The oil burner illustrated is a red-hot type oil space heater, however, it should be noted that the oil burner is not limited -to such oil space heater.
The oil burner 10 includes a pot 12 which is adapted to carry out the vaporization, mixing and ignition of a fuel oil such as ]~erosene supplied thereto in a manner as described hereinafter in detail. The pot 12 has a lower chamber 1~ and an upper chamber 16 defined therein by a horizontal partition 17 having an opening 18 formed at the central portion thereof, through which -the chambers 14 and 16 are communicated with each other. The lower chamber 14 has a heater 20 provided therein which acts to heat a fuel oil to vaporize it and ignite the vaporized fuel oil to burn a part thereof using air mainly supplied frorn throu~h-holes 22 formed at the side wall thereof. The elec~ic heater 20 is preferably arranged adjacent -to the bottom surface of the lower chamber 14 to heat it to a higher temperature, to thereby effectively vaporize a fuel oil rained thereon. The upper chamber 16 has a mixing means 24 provided therein, which is arranged at a position above the opening 18. The mixing means 24 serves to prepare a combustible gas by uniformly diffusing a fuel oil vaporized in the lower chamber 14 in the upper chamber 16 and allowing the difused fuel oil to be mixed with air supplied in the ~2~3~
~; chamber 16 through a plurality of through-holes 26 formed at the side walls of the chamber 16.
The oil burner 10 also includes an air supply means for supplying air to the pot 12 which comprises an air an 28 provided at the exterior of the burner and an air supply passage 30 connected to the Ean and defined in -the burner which is communicated with the interior of the pot 12 through the through~holes 22 and 26 of the pot and an air supply pipe 32 connected between the passage 30 and the pot.
In addit.ion, the oil burner 10 includes an oil supply means for supplying a fuel oil to the pot 12, which comprises an oil tank 34 and an oil reservoir 36. The oil reservoir 36 is constructed to support the tank 34 in an inverted manner and keep the level of a fuel oil therein substantially constant. The oil reservoir 36 is communicated with the pot 12 through an oil supply pipe 38 so as to supply a -fuel oil from the reservoir 36 to the pot, In the embodiment illustrated, a fuel oil is supplied by means of an electromagnetic pump 40 provided between the oil supply pipe 38 and the reservoir 36.
Above the pot 12, a combustion chamber 46 is arranged which is adapted to burn therein a combustible gas formed in the upper chamber 16 utilizing combustion air supplied from the air passage 30 through the through-holes 26 thereto and heat of a fuel oil burned in the pot 12. The combustion chamber 46 has an outer perforated combustion cylinder 48 and an inner perforated combustion cylinder 50 each formed of a ceramic material. A
combustible gas supplied to the combustion chamber 46 is burned on the outer surface of the inner cylinder 50 and the both surfaces of the outer cylinder 48 to red-heat the cylinders 48 and 50, to thereby allow the cylinders to emit 3~
heat rays. Around the outer combustion cylinder ~8 is disposed a transparent heat-permeable cylinder 52 formed of a heat-resistant glass throucJh which heat rays emitted from the cylinders are discharged to the exterior of the burner. Above the combustion chamber 46, an auxiLiary combustion chamber (not shown) may be arranged in communication therewith. The auxiliary combustion chamber ac-ts to completely burn a combustible gas and the like which may remain in a combustion gas produced in the combustion chamber ~6.
An essential feature of the oil burner according to the present invention constructed in the manner as described herei.nbefore is that the air supply pipe 32 and -the oil supply pipe 38 are merged into a single pipe 54 extending to the pot so that a fuel oil may be supplied to the pot 12 -together with air and that the oil supply pipe 32 or single pipe 54 is formed at the end portion thereof ex-tending through the side wall of the pot 12 therein with a nozæle pipe 56 having a much smaller diameter which is adapted to allow a fuel oil mixed with air and carried thereon to be ejected in -the form of fine particles therefrom into the pot. The nozæle pipe 56 is preferably disposed to permit a fuel oil ejected from the nozzle to be dispersed over the entire bottom surface of the pot to be instantaneously vaporized by the heated bottom surface and the heater. In the embodiment illustrated, the nozzle 56 is disposed adjacent to the bottom surface of the pot 12 and to gently slope downwardly toward the bottom surface, to thereby allow a drizzle-like fuel oil ejected from the nozzle to be rained on the entire bottom.
It is also preferable that the nozzle pipe 56 is loosely inserted through an opening 58 formed at the side wall of the pot 12 which has a dimension or a diameter ~3f~
lD
larger than a diameter of the nozzle pipe 56, with a gap ~- 60 being defined -therebetween, to thereby prevent abnormal combustion occurring in the lower chamber when the supply of a fuel oil is suddenly reduced from causing unstable combustion ancl readily accomplish fire-extinguishiny.
Now, the manner of operation of the pot-type oil burner will be explained hereinafter.
Electric current is supplied to the heater 20 to hea-t the lower chamber 14, particularly, the bottom surface thereof to a predetermined temperature and air is supplied through the air supply passage 30 by means of the air fan 28. Then, a fuel oil is supplied from the reservoir 36 through the oil supply pipe 38 to the nozzle pipe 56 of the single pipe 54 by means of the electro-magnetic pump 40 and simultaneously air is supplied fromthe air supply passage 30 through the air supply pipe 32 to the nozzle pipe 56, so that the fuel oil is carried on the air in the nozzle and ejected in the form of fine particles from the nozzle pipe into the lower chamber 14 of the pot 12 at a high velocity because the nozzle has a much smaller diame-ter. The fuel oil ejected into the lower chamber 14 is dispersed over the entire bottom surface of the pot 12 and heated by the heated bottom surface and the heater 20 to be instantaneously vaporized. The heater 20 also serves to ignite the vaporized fuel oil to allow a part of the vapori.zed fuel oil to be burned in the lower chamber 14 using air supplied from the air passage 30 through the through-holes 22 to the lower chamber 14. The vaporized fuel oil is then introduced through the central opening 18 of the partition wall 17 into -the upper chamber 16 and mixed with air supplied from the passage 30 through the through-holes 26 of the side wall of the chamber 16 thereto to form a combustible gas. The so-formed f~
combustible gas is supplied to the combustion chamber 46 toge-ther with -the vapori~ed fuel oil ignited in the lower chamber to be subjected to combustion in the combustion chamber ~6 using combustion air supplied Erom the passage 30 through the through-holes 26 of the upper chamber 16 to the chamber 46. The combustion in the chamber 46 allows the cylinders 50 and 52 to be red-heated to emit heat rays which are discharged through the heat-permeable cylinder 51 to the exterior.
A combustion gas produced by the combustion chamber 46 is discharged through an upper opening 62 of the combustion chamber to the exterior. The combustion gas may be cleaned by an auxili.ary combustion chamber disposed above the combustion chamber ~6 as desiredO
In the pot-type oil burner of the presen-t invention described hereinbefore, the oil supply pipe 38 and air supply pipe 32 merge into the single pipe 54 extending to the pot 12 and the single pipe 5~ is provided at the end portion thereof with the nozzle pipe 56 extending into the pot, so that a fuel oil is carried on air at a high velocity in the nozzle pipe and ejected in the form of fine particles from the nozzle pipe. Thus~ a drizzle-like fuel oil is ejected from the nozzle pipe and rained on the entire bottom surface of the lower chamber 'l4 heated to a high temperature by the heater 20 to be instantly vaporized. This effectively prevents the bottom surface of the pot from getting wet with a liquidous fuel oil, to thereby allow the bottom to be kept in a dry state, Thus, it wilL be noted that the present invention can readily accomplish fire-extinguishing without generating ba~ odor whenever the supply of a fuel oil is stopped.
One of the reasons why the conventional pot-type oil burner requires a long time for carrying out 3~
fire-e~-tinguishing is that a fuel ol.l remaining in an oil supply pipe is vaporized and burned in a po-t heated to a high temperature. The present invention can efectively eliminate such deEect of the prior art because the nozzle pipe has a small area sufficient to substantially reduce the trans~er of heat from the pot thereto and is always cooled by a fuel oil and air supplied therethrough, so that the nozzle pipe is not heated to a temperature sufficient to cause such defect as mentioned above. Particularly, -the presen-t invention effectively eliminates such disadvantage due to the fact that the nozzle pipe of a small diameter is formed at the end of the single pipe and a fuel oil carried on air is supplied through the nozzle pipe at a high velocity, so that a fuel oil may not substantially remain in the nozzle pipe at the fire~extinguishing operation.
A pot-type oil burner is generally constructed to minimize combustion within a pot and substantially carry out it in a combustion chamber. However, the pot-type oil burner, when -the supply of a fuel oil is suddenly and substantially reduced~ causes combustion to mainly occur in the pot. This results in fine parti.cles of a fuel oil in an oil supply pipe heated to a high -temperature being in a boiled state to stop the supply of a fuel oil, to thereby render combustion unstable. The present invention is adapted to effectively prevent unstable combustion due to such abnormal combustion by loosely inserting the nozzle pipe through the opening of the pot to define the gap between the nozzle pipe and the opening through which air is allowed to be supplied to the pot. More particularly, such~abnormal combustion causes the bottom wall and lower side wall o the pot to be heated to a considerably high - temperature; however, the present invention is constructed ';I
in -the manner such tha-t the nozzle pipe is disposed not to contact directly wi-th the pot in order to minimize heat transEer therebetween and air flows through the gap into the pot to cool the outer surface oE the nozzle pipe, so that the nozzle ls not substan-tially heated due to such abnormal combustion. Thus, it will be noted that the above-mentioned unstable combustion due to such abnormal combustion can be effectively prevented and Eire-extinguishing can be readily carried out by stopping the supply of a fuel oil even when the abnormal combustion occurs.
As can be seen from the foregoing, the present invention is capable oE eEfectively accomplishing the above-mentioned objects be-cause the bottom surface of the pot is always kept in a dry state and the supply of a fuel oil at the time of fire-exti.nguishing is readily stopped by the nozzle pipe, so that the fire-ex-tinguishing may be instantly carried out without generating bad odor by a simpl.e operation.
As many apparently widely different embodiments of this invention may be made without departing from the spirit and scope thereof, it is to be understood that the invention is not limited to the specifi_ embodiment thereof except as defined in the appended claims,
BACKGROUND OF TIIE INVENTION
~ield of the Invention l'his invention relates to a pot-type oil burner, and more particularly to a pot-type oil burner adapted to be instantly Eire-extinguished and prevent the generation of bad odor during the fire-extinguishing operation.
Description oE the Prior Ar-t As widely lcnown in the art, a pot-type oil burner is generally constructed in a manner to supply a fuel oil such as kerosene directly to a pot and carry out vapori-zation, mixing and partial combustion of the fuel oil in the pot. A conventional oil burner oE such type is adapted to ensure normal combustion during the regular co~bustion operation. However, the conventional oil burner has a disadvantage that it is substan-tially impossible to instantaneously stop the vaporization, mixing and combustlon at the time of fire-extinguishing, so that the fire-extinguish operation requires a rela-tively long tlme and causes unstable combustion and the genera-tion of bad odor.
BRIEF SUMMARY OF THE INVENTION
The present invention has been made in view of the foregoing disadvantage of the prior art.
Accordingly, it is an object of the present invention -to provide a pot-type oil burner which is capable of instantaneously carrying out fire-extinguishing w-ithout generating bad odor.
It is another object of the present invention to provide a pot-type oil burner which is capable of readily suppressing abnormal combustion occurring in a pot and instantly accomplishing fire-extinguishing.
It is a further object of the present invention to provide a pot-type oil burner which is capable of ~f~3~
substantially completely preventing the generation of bad odor at the fire-extinguishing operation as well as instantly carrying out fire-extinguishing.
In accordance with the present invention, there is provided a pot-type oil burner comprising a pot having a heating means disposed therein and a plurality of through-holes formed at the side wall thereof so as to carry out vaporization, mixing and ignition of a fuel oil; an air supply means for supplying air to the pot; an oil supply means for supplying a fuel oil to the pot; an air pipe for introducing a part of air in the air supply means therethrough to the pot; and an oil pipe for introducing a fuel oil from the oil supply means therethrough to the pot; the air pipe and oil pipe merging into a single pipe extending to the pot, the single pipe having a nozzle means extending into the pot provided at the end portion thereof so that a fuel oil carried on air is ejected in the form of fine particles at a high velocity from the nozzle means into the pot, Preferably, the nozzle means is inserted through an opening formed at the side wall of the pot to have a larger dimension than a diameter of the nozzle means with a gap being defined therebetween which allows air to be supplied therethrough from the air supply means to the pot.
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects and many of the attendant advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:
the single figure is a vertical sectional view showing an embodiment of a pot-type oil burner according to the present inven-tion.
D~TAIL~D D~SCRIPTION OF Tll~ P~EF~RR~D ~MBODIM~NT
Now, a pot-type oil burner accordiny -to the present invention will be described hereinafter with reference to the accompanyiny drawings.
/ The figure illustrates an embodiment of a pot-type oil burner according to the present invention wherein the oil burner is generally indicated by reference numeral 10.
The oil burner illustrated is a red-hot type oil space heater, however, it should be noted that the oil burner is not limited -to such oil space heater.
The oil burner 10 includes a pot 12 which is adapted to carry out the vaporization, mixing and ignition of a fuel oil such as ]~erosene supplied thereto in a manner as described hereinafter in detail. The pot 12 has a lower chamber 1~ and an upper chamber 16 defined therein by a horizontal partition 17 having an opening 18 formed at the central portion thereof, through which -the chambers 14 and 16 are communicated with each other. The lower chamber 14 has a heater 20 provided therein which acts to heat a fuel oil to vaporize it and ignite the vaporized fuel oil to burn a part thereof using air mainly supplied frorn throu~h-holes 22 formed at the side wall thereof. The elec~ic heater 20 is preferably arranged adjacent -to the bottom surface of the lower chamber 14 to heat it to a higher temperature, to thereby effectively vaporize a fuel oil rained thereon. The upper chamber 16 has a mixing means 24 provided therein, which is arranged at a position above the opening 18. The mixing means 24 serves to prepare a combustible gas by uniformly diffusing a fuel oil vaporized in the lower chamber 14 in the upper chamber 16 and allowing the difused fuel oil to be mixed with air supplied in the ~2~3~
~; chamber 16 through a plurality of through-holes 26 formed at the side walls of the chamber 16.
The oil burner 10 also includes an air supply means for supplying air to the pot 12 which comprises an air an 28 provided at the exterior of the burner and an air supply passage 30 connected to the Ean and defined in -the burner which is communicated with the interior of the pot 12 through the through~holes 22 and 26 of the pot and an air supply pipe 32 connected between the passage 30 and the pot.
In addit.ion, the oil burner 10 includes an oil supply means for supplying a fuel oil to the pot 12, which comprises an oil tank 34 and an oil reservoir 36. The oil reservoir 36 is constructed to support the tank 34 in an inverted manner and keep the level of a fuel oil therein substantially constant. The oil reservoir 36 is communicated with the pot 12 through an oil supply pipe 38 so as to supply a -fuel oil from the reservoir 36 to the pot, In the embodiment illustrated, a fuel oil is supplied by means of an electromagnetic pump 40 provided between the oil supply pipe 38 and the reservoir 36.
Above the pot 12, a combustion chamber 46 is arranged which is adapted to burn therein a combustible gas formed in the upper chamber 16 utilizing combustion air supplied from the air passage 30 through the through-holes 26 thereto and heat of a fuel oil burned in the pot 12. The combustion chamber 46 has an outer perforated combustion cylinder 48 and an inner perforated combustion cylinder 50 each formed of a ceramic material. A
combustible gas supplied to the combustion chamber 46 is burned on the outer surface of the inner cylinder 50 and the both surfaces of the outer cylinder 48 to red-heat the cylinders 48 and 50, to thereby allow the cylinders to emit 3~
heat rays. Around the outer combustion cylinder ~8 is disposed a transparent heat-permeable cylinder 52 formed of a heat-resistant glass throucJh which heat rays emitted from the cylinders are discharged to the exterior of the burner. Above the combustion chamber 46, an auxiLiary combustion chamber (not shown) may be arranged in communication therewith. The auxiliary combustion chamber ac-ts to completely burn a combustible gas and the like which may remain in a combustion gas produced in the combustion chamber ~6.
An essential feature of the oil burner according to the present invention constructed in the manner as described herei.nbefore is that the air supply pipe 32 and -the oil supply pipe 38 are merged into a single pipe 54 extending to the pot so that a fuel oil may be supplied to the pot 12 -together with air and that the oil supply pipe 32 or single pipe 54 is formed at the end portion thereof ex-tending through the side wall of the pot 12 therein with a nozæle pipe 56 having a much smaller diameter which is adapted to allow a fuel oil mixed with air and carried thereon to be ejected in -the form of fine particles therefrom into the pot. The nozæle pipe 56 is preferably disposed to permit a fuel oil ejected from the nozzle to be dispersed over the entire bottom surface of the pot to be instantaneously vaporized by the heated bottom surface and the heater. In the embodiment illustrated, the nozzle 56 is disposed adjacent to the bottom surface of the pot 12 and to gently slope downwardly toward the bottom surface, to thereby allow a drizzle-like fuel oil ejected from the nozzle to be rained on the entire bottom.
It is also preferable that the nozzle pipe 56 is loosely inserted through an opening 58 formed at the side wall of the pot 12 which has a dimension or a diameter ~3f~
lD
larger than a diameter of the nozzle pipe 56, with a gap ~- 60 being defined -therebetween, to thereby prevent abnormal combustion occurring in the lower chamber when the supply of a fuel oil is suddenly reduced from causing unstable combustion ancl readily accomplish fire-extinguishiny.
Now, the manner of operation of the pot-type oil burner will be explained hereinafter.
Electric current is supplied to the heater 20 to hea-t the lower chamber 14, particularly, the bottom surface thereof to a predetermined temperature and air is supplied through the air supply passage 30 by means of the air fan 28. Then, a fuel oil is supplied from the reservoir 36 through the oil supply pipe 38 to the nozzle pipe 56 of the single pipe 54 by means of the electro-magnetic pump 40 and simultaneously air is supplied fromthe air supply passage 30 through the air supply pipe 32 to the nozzle pipe 56, so that the fuel oil is carried on the air in the nozzle and ejected in the form of fine particles from the nozzle pipe into the lower chamber 14 of the pot 12 at a high velocity because the nozzle has a much smaller diame-ter. The fuel oil ejected into the lower chamber 14 is dispersed over the entire bottom surface of the pot 12 and heated by the heated bottom surface and the heater 20 to be instantaneously vaporized. The heater 20 also serves to ignite the vaporized fuel oil to allow a part of the vapori.zed fuel oil to be burned in the lower chamber 14 using air supplied from the air passage 30 through the through-holes 22 to the lower chamber 14. The vaporized fuel oil is then introduced through the central opening 18 of the partition wall 17 into -the upper chamber 16 and mixed with air supplied from the passage 30 through the through-holes 26 of the side wall of the chamber 16 thereto to form a combustible gas. The so-formed f~
combustible gas is supplied to the combustion chamber 46 toge-ther with -the vapori~ed fuel oil ignited in the lower chamber to be subjected to combustion in the combustion chamber ~6 using combustion air supplied Erom the passage 30 through the through-holes 26 of the upper chamber 16 to the chamber 46. The combustion in the chamber 46 allows the cylinders 50 and 52 to be red-heated to emit heat rays which are discharged through the heat-permeable cylinder 51 to the exterior.
A combustion gas produced by the combustion chamber 46 is discharged through an upper opening 62 of the combustion chamber to the exterior. The combustion gas may be cleaned by an auxili.ary combustion chamber disposed above the combustion chamber ~6 as desiredO
In the pot-type oil burner of the presen-t invention described hereinbefore, the oil supply pipe 38 and air supply pipe 32 merge into the single pipe 54 extending to the pot 12 and the single pipe 5~ is provided at the end portion thereof with the nozzle pipe 56 extending into the pot, so that a fuel oil is carried on air at a high velocity in the nozzle pipe and ejected in the form of fine particles from the nozzle pipe. Thus~ a drizzle-like fuel oil is ejected from the nozzle pipe and rained on the entire bottom surface of the lower chamber 'l4 heated to a high temperature by the heater 20 to be instantly vaporized. This effectively prevents the bottom surface of the pot from getting wet with a liquidous fuel oil, to thereby allow the bottom to be kept in a dry state, Thus, it wilL be noted that the present invention can readily accomplish fire-extinguishing without generating ba~ odor whenever the supply of a fuel oil is stopped.
One of the reasons why the conventional pot-type oil burner requires a long time for carrying out 3~
fire-e~-tinguishing is that a fuel ol.l remaining in an oil supply pipe is vaporized and burned in a po-t heated to a high temperature. The present invention can efectively eliminate such deEect of the prior art because the nozzle pipe has a small area sufficient to substantially reduce the trans~er of heat from the pot thereto and is always cooled by a fuel oil and air supplied therethrough, so that the nozzle pipe is not heated to a temperature sufficient to cause such defect as mentioned above. Particularly, -the presen-t invention effectively eliminates such disadvantage due to the fact that the nozzle pipe of a small diameter is formed at the end of the single pipe and a fuel oil carried on air is supplied through the nozzle pipe at a high velocity, so that a fuel oil may not substantially remain in the nozzle pipe at the fire~extinguishing operation.
A pot-type oil burner is generally constructed to minimize combustion within a pot and substantially carry out it in a combustion chamber. However, the pot-type oil burner, when -the supply of a fuel oil is suddenly and substantially reduced~ causes combustion to mainly occur in the pot. This results in fine parti.cles of a fuel oil in an oil supply pipe heated to a high -temperature being in a boiled state to stop the supply of a fuel oil, to thereby render combustion unstable. The present invention is adapted to effectively prevent unstable combustion due to such abnormal combustion by loosely inserting the nozzle pipe through the opening of the pot to define the gap between the nozzle pipe and the opening through which air is allowed to be supplied to the pot. More particularly, such~abnormal combustion causes the bottom wall and lower side wall o the pot to be heated to a considerably high - temperature; however, the present invention is constructed ';I
in -the manner such tha-t the nozzle pipe is disposed not to contact directly wi-th the pot in order to minimize heat transEer therebetween and air flows through the gap into the pot to cool the outer surface oE the nozzle pipe, so that the nozzle ls not substan-tially heated due to such abnormal combustion. Thus, it will be noted that the above-mentioned unstable combustion due to such abnormal combustion can be effectively prevented and Eire-extinguishing can be readily carried out by stopping the supply of a fuel oil even when the abnormal combustion occurs.
As can be seen from the foregoing, the present invention is capable oE eEfectively accomplishing the above-mentioned objects be-cause the bottom surface of the pot is always kept in a dry state and the supply of a fuel oil at the time of fire-exti.nguishing is readily stopped by the nozzle pipe, so that the fire-ex-tinguishing may be instantly carried out without generating bad odor by a simpl.e operation.
As many apparently widely different embodiments of this invention may be made without departing from the spirit and scope thereof, it is to be understood that the invention is not limited to the specifi_ embodiment thereof except as defined in the appended claims,
Claims (10)
1. A pot-type oil burner comprising:
a pot having a heating means disposed therein and having a plurality of through-holes formed at the side wall thereof so as to carry out therein vaporization, mixing and ignition of a fuel oil supplied thereto;
an air supply means for supplying air to said pot;
an oil supply means for supplying a fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means therethrough to said pot;
and an oil pipe for introducing a fuel oil from said oil supply means therethrough to said pot;
said air pipe and oil pipe merging into a single pipe extending to said pot, said single pipe having a nozzle means provided at the end portion thereof which extends into said pot so that a fuel oil carried on air is ejected in the form of fine particles at a high velocity from said nozzle into said pot.
a pot having a heating means disposed therein and having a plurality of through-holes formed at the side wall thereof so as to carry out therein vaporization, mixing and ignition of a fuel oil supplied thereto;
an air supply means for supplying air to said pot;
an oil supply means for supplying a fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means therethrough to said pot;
and an oil pipe for introducing a fuel oil from said oil supply means therethrough to said pot;
said air pipe and oil pipe merging into a single pipe extending to said pot, said single pipe having a nozzle means provided at the end portion thereof which extends into said pot so that a fuel oil carried on air is ejected in the form of fine particles at a high velocity from said nozzle into said pot.
2. A pot-type oil burner as defined in Claim 1, wherein said heating means is arranged adjacent to the bottom surface of said pot and said nozzle means is directed toward the bottom surface of said pot so that said fine particles of fuel oil may be more uniformly dispersed over the entire bottom surface of said pot.
3. A pot-type oil burner as defined in Claim 1, wherein said nozzle means is loosely inserted through an opening formed at the side wall of said pot to have a larger dimension than a diameter of said nozzle means so as to define a gap therebetween which allows air to be supplied therethrcugh from said air supply means to said pot.
4. A pot-type oil burner as defined in Claim 3, wherein said pot is divided into a lower chamber and an upper chamber by a horizontal partition having an opening formed at the central portion thereof through which said lower and upper chambers are communicated with each other, said heating means being disposed in said lower chamber so as to be adjacent to the bottom thereof and said nozzle means being inserted into said lower chamber.
5. A pot-type oil burner comprising:
a pot having a plurality of through-holes formed at the side wall thereof, said pot being divided into a lower chamber and an upper chamber communicated with each other;
an electric heater for heating said pot to a temperature sufficient to vaporize a fuel oil supplied to said lower chamber, said heater being arranged in said lower chamber of said pot so as to be adjacent to the bottom surface thereof;
an air supply means for supplying air to said pot;
an oil supply means for supplying a fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means to said pot; and an oil pipe for introducing a fuel oil from said oil supply means to said pot;
said air pipe and oil pipe merging into a single pipe extending to said lower chamber of said pot, said single pipe having a nozzle means provided at the end portion thereof which extends into said lower chamber of said pot;
said nozzle means being loosely inserted through an opening formed at the side wall of said lower chamber to have a larger diameter than that of said nozzle means so as to define a gap therebetween which allows air to be supplied from said air supply means therethrough to said lower chamber.
a pot having a plurality of through-holes formed at the side wall thereof, said pot being divided into a lower chamber and an upper chamber communicated with each other;
an electric heater for heating said pot to a temperature sufficient to vaporize a fuel oil supplied to said lower chamber, said heater being arranged in said lower chamber of said pot so as to be adjacent to the bottom surface thereof;
an air supply means for supplying air to said pot;
an oil supply means for supplying a fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means to said pot; and an oil pipe for introducing a fuel oil from said oil supply means to said pot;
said air pipe and oil pipe merging into a single pipe extending to said lower chamber of said pot, said single pipe having a nozzle means provided at the end portion thereof which extends into said lower chamber of said pot;
said nozzle means being loosely inserted through an opening formed at the side wall of said lower chamber to have a larger diameter than that of said nozzle means so as to define a gap therebetween which allows air to be supplied from said air supply means therethrough to said lower chamber.
6. A pot-type oil burner comprising:
a pot having a heating means disposed therein adjacent to the bottom surface of said pot, said pot having a plurality of through-holes formed at the side wall thereof for introducing air into said pot so as to carry out within said pot the vaporization, mixing, ignition and combustion of fuel oil supplied thereto;
an air supply means for supplying a flow of air to said pot;
an oil supply means for supplying fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means therethrough to said pot; and an oil pipe for introducing fuel oil from said oil supply means therethrough to said pot;
said air pipe and oil pipe merging into a single pipe extending to said pot, said single pipe having a nozzle means provided at the end portion thereof, said nozzle means extending into said pot and toward the bottom surface of said pot so that fuel oil carried on air is ejected from said nozzle means in the form of fine particles at a high velocity and thereby is more uniformly dispersed over the entire bottom surface of said pot, and the velocity of the fuel oil in said nozzle means being selected relative to the temperature of the bottom surface of said pot so as to effectively prevent said bottom surface from getting wet with liquidous fuel oil and the area of the opening of said nozzle means being selected so that the velocity of the air passing therethrough substan-tially prevents fuel oil from remaining in said nozzle means when the supply of fuel oil is stopped.
a pot having a heating means disposed therein adjacent to the bottom surface of said pot, said pot having a plurality of through-holes formed at the side wall thereof for introducing air into said pot so as to carry out within said pot the vaporization, mixing, ignition and combustion of fuel oil supplied thereto;
an air supply means for supplying a flow of air to said pot;
an oil supply means for supplying fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means therethrough to said pot; and an oil pipe for introducing fuel oil from said oil supply means therethrough to said pot;
said air pipe and oil pipe merging into a single pipe extending to said pot, said single pipe having a nozzle means provided at the end portion thereof, said nozzle means extending into said pot and toward the bottom surface of said pot so that fuel oil carried on air is ejected from said nozzle means in the form of fine particles at a high velocity and thereby is more uniformly dispersed over the entire bottom surface of said pot, and the velocity of the fuel oil in said nozzle means being selected relative to the temperature of the bottom surface of said pot so as to effectively prevent said bottom surface from getting wet with liquidous fuel oil and the area of the opening of said nozzle means being selected so that the velocity of the air passing therethrough substan-tially prevents fuel oil from remaining in said nozzle means when the supply of fuel oil is stopped.
7. A pot-type oil burner comprising:
a pot having a plurality of through-holes formed at the side wall thereof for introducing air into said pot, said pot being divided into a lower chamber, and an upper chamber communicated with each other;
an electric heater for heating said pot to a temperature sufficient to vaporize, ignite and combust within said pot fuel oil supplied to said lower chamber, said heater being arranged in said lower chamber of said pot so as to be adjacent to the bottom surface thereof;
an air supply means for supplying air to said pot;
an oil supply means for supplying fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means to said pot; and said air pipe and oil pipe marging into a single pipe extending to said lower chamber of said pot, said single pipe having a nozzle means provided at the end por-tion thereof, said nozzle means extending into said lower chamber and being directed toward the bottom surface of said pot;
said nozzle means being loosely inserted through an opening formed at the side wall of said lower chamber, said opening having a larger diameter than that of said nozzle means so as to define a gap which allows air to be supplied from said air supply means therethrough to said lower chamber to cool said nozzle means, and the velocity of the fuel oil in said nozzle means being selected relative to the temperature of the bottom surface of said pot so as to effectively prevent said bottom surface from getting wet with liquidous fuel oil and the area of the opening of said nozzle means being selected so that the velocity of the air passing therethrough substantially prevents fuel oil from remaining in said nozzle means when the supply of fuel oil is stopped.
a pot having a plurality of through-holes formed at the side wall thereof for introducing air into said pot, said pot being divided into a lower chamber, and an upper chamber communicated with each other;
an electric heater for heating said pot to a temperature sufficient to vaporize, ignite and combust within said pot fuel oil supplied to said lower chamber, said heater being arranged in said lower chamber of said pot so as to be adjacent to the bottom surface thereof;
an air supply means for supplying air to said pot;
an oil supply means for supplying fuel oil to said pot;
an air pipe for introducing a part of air flowing through said air supply means to said pot; and said air pipe and oil pipe marging into a single pipe extending to said lower chamber of said pot, said single pipe having a nozzle means provided at the end por-tion thereof, said nozzle means extending into said lower chamber and being directed toward the bottom surface of said pot;
said nozzle means being loosely inserted through an opening formed at the side wall of said lower chamber, said opening having a larger diameter than that of said nozzle means so as to define a gap which allows air to be supplied from said air supply means therethrough to said lower chamber to cool said nozzle means, and the velocity of the fuel oil in said nozzle means being selected relative to the temperature of the bottom surface of said pot so as to effectively prevent said bottom surface from getting wet with liquidous fuel oil and the area of the opening of said nozzle means being selected so that the velocity of the air passing therethrough substantially prevents fuel oil from remaining in said nozzle means when the supply of fuel oil is stopped.
8 . A pot type oil burner as defined in Claim 6, wherein said nozzle means is loosely inserted through an opening formed in the sidewall of said pot, said opening having a larger dimension than a diameter of said nozzle means so as to define a gap therebetween which allows air to be supplied therethrough from said air supply means to said pot so as to cool said nozzle means.
9. A pot-type oil burner as defined in Claim 6, wherein said single pipe slopes downwardly toward said pot and said nozzle means slopes downwardly from the end portion of said single pipe toward the bottom surface of said pot so that air from said air pipe removes fuel oil from said single pipe and said nozzle means when the supply of fuel oil is stopped.
10. A pot-type oil burner as defined in Claim 6, wherein said air supply means starts supplying air to said pot before said oil supply means starts supplying fuel oil to said pot.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9332182A JPS58210408A (en) | 1982-06-01 | 1982-06-01 | Pot type kerosene burner |
| JP93321/1982 | 1982-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1203469A true CA1203469A (en) | 1986-04-22 |
Family
ID=14079024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000427904A Expired CA1203469A (en) | 1982-06-01 | 1983-05-11 | Pot-type oil burner |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS58210408A (en) |
| BE (1) | BE897283A (en) |
| CA (1) | CA1203469A (en) |
| DE (1) | DE3318636C2 (en) |
| FR (1) | FR2527745B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0227315Y2 (en) * | 1985-03-07 | 1990-07-24 | ||
| DE3703220C2 (en) * | 1987-02-04 | 1997-02-20 | Toyotomi Kogyo Co Ltd | Oil burner |
| KR100968161B1 (en) * | 2008-06-26 | 2010-07-06 | 김철 | Fire extinguishing apparatus of petroleum stove |
| KR100997903B1 (en) * | 2008-10-06 | 2010-12-02 | 김철 | Petroleum stove |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB232959A (en) * | 1924-04-22 | 1925-10-15 | Karl Grassl | Crude oil burners |
| US1986201A (en) * | 1930-03-12 | 1935-01-01 | Lyman C Huff | Method of effecting combustion of fluid fuel |
| DE1838791U (en) * | 1957-10-05 | 1961-10-05 | Heinrich Lang | DEVICE FOR OPERATING OIL STOVES. |
| FR1255996A (en) * | 1960-02-01 | 1961-03-17 | Improvements to water heater burners | |
| JPS58208510A (en) * | 1982-05-28 | 1983-12-05 | Toyotomi Kogyo Co Ltd | Ignition device for kerosene burner |
-
1982
- 1982-06-01 JP JP9332182A patent/JPS58210408A/en active Granted
-
1983
- 1983-05-11 CA CA000427904A patent/CA1203469A/en not_active Expired
- 1983-05-21 DE DE19833318636 patent/DE3318636C2/en not_active Expired
- 1983-06-01 FR FR8309040A patent/FR2527745B1/en not_active Expired
- 1983-07-14 BE BE2/60157A patent/BE897283A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2527745B1 (en) | 1988-09-16 |
| FR2527745A1 (en) | 1983-12-02 |
| JPS6262247B2 (en) | 1987-12-25 |
| DE3318636A1 (en) | 1983-12-01 |
| DE3318636C2 (en) | 1987-01-29 |
| BE897283A (en) | 1983-11-03 |
| JPS58210408A (en) | 1983-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |