JP2018128236A - Burner device and luminaire using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain a burner device configured to form decorative long flame and prevent adhesion and accumulation of soot, and provide a luminaire capable of being used outdoor.SOLUTION: On an outer peripheral surface and upper surface of a burner part 4 whose upper surface is closed, a plurality of burner ports 5, 6 is formed, and on the upper surface of the burner part 4 or above it, a rectifying cylinder 7 is provided toward an upper side. On the outer peripheral surface and upper surface of the burner part 4, flame having low primary air rate is formed, and both of them are separated by a rectifying cylinder 7, so that flame whose base part is blue is formed outside and yellow flame is formed inside, to form long luminous flame as the whole.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a burner device that generates a long flame and a lighting device that can be used in an outdoor environment.

  Non-Patent Document 1 discloses a lighting device such as a bonfire that raises a flame generated by burning gas outdoors, as shown in FIG. In this lighting device, the burner device is installed in the lower part of the glass tube, and a bright flame is formed in the glass tube. The burner device is a partial premixing type burner that sucks primary air with an injector.

  As shown in FIG. 9, the flame holes of the burner device are made of a ceramic lattice. Here, if the primary air rate is lowered to increase the yellow color of the flame, yellow flame will be generated from the flame base, and there is a greater possibility of soot adhering to the flame detector, spark plug or exhaust passage. A problem arises in sex. If the primary air rate is increased, the flame base can be made blue flame, but it becomes a flame that feels unnatural as a decorative long flame with a blue lower flame and a yellow upper flame.

  Patent Document 1 discloses a combustion method for forming a luminous flame that swirls by blowing fuel in the axial direction into a tubular flame. Further, Patent Document 2 discloses a lighting device that performs combustion by the above-described combustion method in a glass tube. In this lighting device, a luminous flame swirls to form a spectacular flame. On the other hand, a tubular flame has a disadvantage that the pressure loss of combustion air is large, and requires a forced blower using a commercial power source.

  Gas fireplaces are used to produce decorative flames. Patent Document 3 discloses a gas fireplace that makes it appear that a ceramic pseudo-wood is burning by adding a flame colorant to an infrared burner flame. Since an infrared burner is used, even if flame reaction is used, the flame is relatively short, and it is impossible to realize a long flame that reaches about 0.5 m in length.

Limited company Ikeda homepage (http://patioheater.ikedaya.net/)

JP2013-145099A JP 2013-145075 A Japanese Utility Model Publication No. 5-36201

  In view of the above, the present invention forms a practical and safe flame that does not necessarily require commercial power and is less likely to cause sticking / deposition of soot when realizing a decorative long flame with light, movement, and warmth. An object of the present invention is to provide an illuminating device that can be used for outdoor illumination and heating using the burner device.

  The burner apparatus according to the present invention is a burner apparatus in which primary air is sucked by an injector using the pressure of fuel gas under atmospheric pressure to form a partial premixed gas, which is burned in the burner section to generate a flame. The burner portion is formed in a cylindrical shape whose upper surface is closed, a plurality of flame holes are formed on the outer peripheral surface of the burner portion, and a rectifying cylinder is provided on the upper surface of the burner portion or above the upper side. It is.

  The burner portion is similar to a partially premixed burner such as a stove (so-called Bunsen burner), and has a large number of flame holes formed in the horizontal direction on the outer peripheral surface of the burner portion. In such a burner portion, when the flow rate of the air-fuel mixture containing the fuel gas is increased, a vortex is formed on the upper surface of the burner portion, and a flame is easily caught, so that a turbulent flame is easily formed. Therefore, the flame length does not increase. Therefore, when the rectifying cylinder is provided on the upper surface or above the burner portion, the entrainment of the flame is suppressed, a laminar flame state continues, and a long flame is formed.

  Furthermore, if a plurality of flame holes are formed on the upper surface of the burner portion and the flame holes on the upper surface are located inside the rectifying cylinder, the rectifying cylinder suppresses the diffusion and penetration of secondary air inside the rectifying cylinder. As a result, the diffusion combustion rate becomes slow and a bright flame state is obtained. Therefore, the flame becomes a longer flame and a bright flame. In addition, the rectifier tube is heated from inside and outside by the flame and becomes red hot, and it emits light and heat (from visible light to infrared light) as solid radiation, superimposed on the radiation from the flame, and only with the lighting device In addition, a burner device suitable for a heating device is configured.

  The flame holes on the outer peripheral surface of the burner portion are slit-shaped that are opened in the horizontal direction and extend in the vertical direction. When the flame hole on the outer peripheral surface of the burner is a simple round hole, the flame easily rises (lifts or lifts) and blows off when the air-fuel mixture flow rate increases, that is, the flame hole load increases. . Therefore, if the flame hole is slit-shaped, the ratio of the circumference to the area of the flame hole is increased, so that the rising of the flame is suppressed. As a result, it is possible to increase the flame hole load and facilitate the formation of a long flame.

  The flame holes on the outer peripheral surface of the burner portion can be extended to the upper surface to serve as the flame holes formed on the upper surface. In this way, one flame hole in which the horizontal opening and the vertical opening are integrated is formed by a single process by pressing a thin bladed rotating blade from the upper side of the burner section and cutting the slit. can do. The number of man-hours can be reduced as compared with the case where the outer peripheral surface and the upper surface are individually opened, and as a result, the processing cost can be reduced.

  The primary air rate is limited to 10% to 50% so that the base of the flame in contact with the spark plug or flame detector becomes blue flame and yellow flame is formed on the top of the flame. In general, in the so-called Bunsen burner, the primary air rate is set to about 40% to 60% so that the entire flame becomes blue flame. Although the center or upper part of the flame becomes yellow flame, a luminous flame is formed as a whole flame, but the primary air rate is limited in order to keep the flame base at the blue flame. Specifically, by adopting a primary air ratio of about 10% to 50%, the portion that comes into contact with the spark plug or the flame detector becomes a blue flame, so that the adhesion of soot can be eliminated. Reliability of equipment as heating is improved. At the same time, the flame becomes a long flame, and the flames other than the base portion become a luminous flame, which has an appropriate appearance and radiation performance as a lighting or heating flame.

  The material of the rectifying cylinder is made of any one of a heat-resistant metal wire mesh, a metal fiber woven or non-woven fabric, a porous plate, a ceramic plate, a porous ceramic plate, glass or ceramic fiber, or a composite material thereof. The role of the rectifying cylinder is to rectify the flame (suppression of turbulent vortices) that suppresses the entrainment of the flame, but at the same time, these components have a small heat capacity and easily become high temperature to generate solid radiation. Depending on the selection of the material, there is much radiation in the infrared region with a long wavelength, and a material suitable for the heating device can be selected. Of course, these materials must be refractory materials that can withstand the heating of the flame.

  It is possible to attach or contain a flame colorant in the rectifying tube, or to mix the flame colorant itself or the flame colorant with other materials as a raw material, thereby forming all or part of the rectifying tube. The flame reaction is a phenomenon in which volatilized metal ions are excited by collision of molecular species whose translation speed is increased by combustion heat or the like, and emit light having a wavelength specific to the metal when returning to the ground state. Therefore, when a flame colorant that causes a flame reaction is added to the rectifying tube, the light of the flame reaction is added to the light of the flame, and light of a color different from the color of the flame is obtained. can get. Specifically, yellow light is added when a sodium compound is used, and pink light is added when a potassium compound is used. In addition, compounds such as barium, copper, and strontium are used as flame retardants. In addition, what is normally called a flame retardant means what emits visible light, but if a substance that emits infrared light in an appropriate wavelength range is used, the heating effect can be assisted.

  When the distance between each flame hole and the flow straightening tube is changed, the flame can be fluctuated. That is, by changing the height of the rectifying cylinder and generating part of the turbulent flow (winding), changing the cross section of the rectifying cylinder from a circle, installing the rectifying cylinder eccentrically with respect to the cylindrical burner, By interposing another member that changes the flow in the rectifying cylinder, the distance between each flame hole and the rectifying cylinder is different. When the flow straightening cylinder is cylindrical and is arranged concentrically with the burner portion, the flame becomes a laminar straight flame with almost no disturbance. In this case, the flame becomes the longest flame. On the other hand, when it is desired to make the lighting decorative, the effect of appreciation is enhanced if there is some fluctuation in the flame. Therefore, by adopting the above-described form, the laminar straight flame is daringly disturbed, and the flame is shaken or deformed, thereby enhancing the visual effect.

  In the lighting device using the burner device described above, the burner device is installed in a transparent cylinder having an inner diameter larger than the outer diameter of the burner apparatus, and the secondary air is burned from the air gap between the burner device and the cylinder. To complete combustion.

  In this lighting device, since the heat exchanger is not provided, the exhaust gas becomes high temperature. Therefore, buoyancy (draft) occurs due to the density difference caused by the temperature difference, and air flows between the burner device and the cylinder from the bottom upward, and a part of it is used as secondary air for the combustion reaction. The By combusting the air gap appropriately, complete combustion is achieved. The amount of circulating air can be adjusted not only by the gap between the burner device and the cylinder, but also by changing the area of the inlet and outlet of the cylinder. Therefore, the secondary air can be circulated only by the draft, and it becomes unnecessary to use a fan or a blower. As a result, a commercial power source becomes unnecessary, and the lighting device can be easily and inexpensively installed outdoors. The cylinder must have heat resistance sufficient to withstand the heat generated by internal combustion, but the heat resistance temperature can be lowered by the cooling effect of the air flowing along the cylinder wall.

  The cylinder should have an inner diameter and length that are not in contact with the flame. The flame formed by the burner device described above can be a luminous flame containing soot precursor except for the base of the flame. When the luminous flame comes into contact with a solid wall having a relatively low temperature, the combustion reaction of the soot precursor is frozen and soot can adhere to the solid wall. When the bag adheres to the cylinder, the light transmittance of the cylinder is lost, and thus the function as lighting or heating is impaired. Furthermore, if soot accumulates in the exhaust gas passage, the pressure loss of the passage increases, the secondary air flow rate decreases, and there is a risk of incomplete combustion. Since the flame formed by the burner device is basically a laminar straight flame with little fluctuation, if a cylinder having an inner diameter larger than the maximum diameter of the flame is used, there is no contact between the flame and the cylinder, The above risks are deterred. In addition, since the diameter which can visually recognize a flame changes with the flows of secondary air, it is not the same as the case where it burns in still air outside a cylinder.

  The lighting device can be installed outdoors by providing protective members for restricting intrusion of wind and rain at the air supply port and the exhaust port with respect to the burner device so as to prevent combustion by wind and rain. When the length of the cylindrical body is long, the positions of the air supply port and the exhaust port in the height direction are different. Therefore, unless appropriate windproof measures are taken, the flow rate and flow direction of the combustion air may change due to the wind, which may hinder combustion. Moreover, if rain enters directly from the upper part of the cylinder, the flame may disappear due to the cooling effect of water. Therefore, select the position and size of the air supply and exhaust ports that suppress changes in the flow of combustion air due to wind, and attach protective members around the burner device including the air supply port, exhaust port, and nozzle area, Keep the impact to a minimum. With regard to rain, rain can be prevented from entering by attaching a shade larger than the size of the outlet of the cylinder as a protective member above the cylinder. Thereby, it becomes possible to install an illuminating device outdoors.

  According to the present invention, it is possible to form a long luminous flame with a blue flame at the base, so that dirt such as soot is difficult to adhere to the ignition device, flame detector, exhaust gas passage, cylinder, and is safe and easy to clean. A burner device that can be omitted can be provided. In addition, by forming a decorative long flame that fluctuates, a lighting device that can create an attractive and healing space can be realized. In addition, the radiation efficiency is increased, and an illumination device that can be used as a heating device can be realized. Further, since the secondary air can be taken in spontaneously, a commercial power source for the combustion fan is not necessary, and restrictions on the installation location can be kept to a minimum.

The perspective view of the illuminating device of one Embodiment of this invention. Front view of lighting device Schematic configuration diagram of lighting device Schematic configuration diagram of burner device Plan view and front view of burner section The top view and front view of the burner part of other embodiment Sectional drawing of the burner part of other embodiment A perspective view of a conventional lighting device A perspective view of a conventional burner device

  The illuminating device of this embodiment is shown in FIGS. The lighting device includes a burner device 1 that burns fuel gas to form a long flame, and a cylindrical body 2 that radiates heat so that the long flame in a bright flame state can be visually recognized from the outside. A cylinder 2 is arranged on the upper side of the device 1.

  As shown in FIG. 4, the burner device 1 has a burner unit 4 that sucks primary air with an injector 3 using atmospheric pressure to form a partial premixed gas and burns it. As shown in FIG. 5, the burner portion 4 is formed in a cylindrical shape whose upper surface is closed, and a plurality of flame holes 5 and 6 are formed on the outer peripheral surface and the upper surface of the burner portion 4. On the upper surface of the burner section 4, a rectifying cylinder 7 is provided for rectifying the flame flow.

  The burner part 4 is composed of a burner body 10 and a burner cap 11 made of brass, stainless steel, cast iron or the like, and the burner cap 11 is fitted on the upper surface of the burner body 10. A large number of slit-shaped flame holes 5 opened in the horizontal direction are formed on the outer peripheral surface of the burner cap 11, and a plurality of circular flame holes 6 opened in the vertical direction are formed on the upper surface of the burner cap 11. Has been. The plurality of flame holes 6 on the upper surface are arranged at equal intervals on a concentric circle.

  The burner apparatus 1 includes a gas cock 12, a governor 13, a gas cylinder 14, a nozzle 15, a mixing tube (injector) 3, a flame detector 16, a spark plug 17, and a control device 18. The burner device 1 is accommodated in a case 20 made of stainless steel. The upper surface of the case 20 is closed, and a circular hole 21 is formed at the center of the upper surface. The burner portion 4 protrudes upward from the circular hole 21. The flame holes 5 and 6 are located above the upper surface of the case 20. A vent 22 for taking in external air is formed in the outer peripheral surface of the case 20.

  The gas cock 12 is used for opening and closing the fuel gas passage and adjusting the flow rate, and the ignition device operates in conjunction with the operation of the gas cock 12. The ignition plug 17 of the ignition device is used for igniting the fuel gas by spark discharge. Discharging is performed by applying a high voltage by an ignition transformer. The solenoid valve 23 is used to safely shut off the fuel gas at the time of misfire (blown out) or overheated, and is often configured integrally with the gas cock 12. The governor 13 is used for regulating the pressure of the fuel gas or reducing and regulating the pressure of the high pressure gas in the gas cylinder 14. The gas cylinder 14 is used when it is uneconomical to supply fuel gas by piping, and is usually a propane gas cylinder. The flame detector 16 detects the presence or absence of a flame. As the fire detector 16, a thermocouple, a frame rod, an ultraviolet phototube, or the like is used. When the flame extinguishes and the fire detector 16 detects this, the solenoid valve 23 shuts off the fuel gas as an action of the safety device (extinguishing safety device). The control device 18 controls the ignition device, the electromagnetic valve 23, the ignition transformer, and the like.

  The rectifying cylinder 7 is formed in a thin cylindrical shape and is made of a heat-resistant metal wire mesh, a metal fiber woven or non-woven fabric, a porous metal plate, a ceramic plate, a porous ceramic plate, glass or ceramic fiber, or a composite material thereof. The rectifying cylinder 7 is placed on the upper surface of the burner cap 11 and is attachable to and detachable from the burner portion 4. Alternatively, the rectifying cylinder 7 is disposed above the burner cap 11. When the rectifying cylinder 7 is disposed above the burner cap 11, a support material that supports the rectifying cylinder 7 is provided. A plurality of support columns are provided around the burner unit 4 and a support member is attached to the support columns. The column is attached to the case 20 and protrudes upward from the circular hole 21. The support material is located above the burner cap 11, and the rectifying cylinder 7 is placed on the support material.

  The flow straightening cylinder 7 has a smaller diameter than the circular burner cap 11, has a larger diameter than the circle formed by the flame holes 6 on the upper surface, and is positioned concentrically with respect to the burner cap 11. Therefore, the flame hole 6 on the upper surface of the burner cap 11 is positioned inside the rectifying cylinder 7, and the flame hole 5 on the outer peripheral surface is positioned outside the rectifying cylinder 7. Thereby, the rectifying cylinder 7 acts to suppress the entrainment of the flame on the upper surface of the burner cap 11 and the diffusion and penetration of the secondary air, and promotes the formation of a long laminar straight flame. Furthermore, since the rectifying cylinder 7 is heated from inside and outside by the flames a and b and solid radiation is performed, the rectifying cylinder 7 contributes to heating.

  The cylinder 2 is a transparent cylinder having a larger diameter than the burner portion 4. The cylindrical body 2 is fitted into the circular hole 21 on the upper surface of the case 20 or placed on the upper surface of the case 20. Inside the cylinder 2, there are a burner portion 4 and a rectifying cylinder 7. A lattice 25 is provided outside the cylinder 2, and a shade 26 is provided above the cylinder 2.

  The inner diameter of the cylinder 2 is larger than the maximum diameter of the flame, and the length of the cylinder 2 needs to be longer than the longest flame in consideration of the combustion characteristics of the gas to be burned and the maximum combustion amount. This is to prevent the soot from adhering to the shade 26 due to the contact of the flame.

  A cover 27 for hiding the lower part of the cylindrical body 2 is provided. The heat-resistant metal cover 27 is formed in a cylindrical shape, and is attached to the support column so as to be slidable in the vertical direction. The cover 27 covers the outer peripheral surface of the lower portion of the cylindrical body 2, and the upper end of the cover 27 is located higher than the upper end of the rectifying cylinder 7. Therefore, the cover 27 also hides the burner portion 4, the rectifying cylinder 7, and the support column. Note that the cover 27 may be made of a transparent material in order to obtain an effect of showing the flame of the burner device 1. Alternatively, a window may be provided in the cover 27 so that the inside of the cover 27 can be seen.

  The lattice 25 is for preventing the combustible material from coming into contact with the cylindrical body 2 and preventing the human body from being burned by the contact. A wire mesh, a wire rod or a metal perforated plate is provided so as to surround the cylindrical body 2. Etc. to form a frame. The lattice 25 is detachably attached to the upper surface of the case 20, and the upper end of the lattice 25 is higher than the upper end of the cylindrical body 2.

  The shade 26 is provided to prevent wind and rain from directly entering the cylinder 2, is attached to the upper end of the lattice 25, and covers the outlet at the upper end of the cylinder 25. A gap is formed between the shade 26 and the cylindrical body 2 for the passage of combustion exhaust gas discharged from the outlet of the cylindrical body 2, and the outlet of the cylindrical body 2 serves as an exhaust port. Since the material of the shade 26 needs to have a certain degree of heat resistance and nonflammability, stainless steel, aluminum alloy, plated steel plate, or the like is used.

  When this lighting device is installed outdoors, wind and rain affect combustion. Therefore, a protective member 28 for restricting the invasion of wind and rain is provided so that the combustion is not disabled by the wind and rain. The protective members are provided at the air supply port and the exhaust port for the burner device 1. More specifically, as shown in FIG. 4, the protective member 28 is provided with an air supply to prevent the wind entering from the vent 22 or the outlet of the cylindrical body 2 from affecting the flow rate and flow direction of the combustion air. It is provided in the vicinity of the primary air intake that is the mouth. The protection member 28 is formed in a cylindrical shape by a metal perforated plate or a metal cylinder having an appropriate opening. Further, the protection member 28 is provided in the secondary air intake, that is, in the gap between the burner portion 4 and the cylindrical body 2. The shade 26 is also a protective member that covers the exhaust port.

  In this way, the cylindrical body 2 allows the flame burned on the inside to be visually recognized from the outside as illumination such as lighting and bonfire, and the flame and radiation from the cylindrical body 2 are used for heating. However, when this lighting device is exclusively used for heating or heating, the cylindrical body 2 is not necessarily transparent (transmits visible light), and transmits infrared light or is opaque with high infrared light emissivity. A simple tube may be used. The cylindrical body 2 is required to have heat resistance enough to withstand heating by an internal flame, and when installed outdoors, performance that can withstand thermal shock (heat shock) due to rapid cooling by rainwater, that is, linear expansion coefficient. Is also required. From such required performance, quartz glass can be cited as an optimal material when used outdoors as a lighting device or a heating device.

  When the gas cock 12 is operated, the fuel gas is supplied from the gas cylinder 14 to the nozzle 15, the fuel gas is ejected from the nozzle 15 at a high speed, and the ambient air is sucked by the injector 3 with the momentum to form an air-fuel mixture. The However, in order to form a bright flame (yellow flame), the primary air rate is suppressed to 10% to 50%, which is lower than a normal Bunsen burner.

  A premixed mixture of fuel and air is ejected from the flame holes 5 on the outer peripheral surface of the burner section 4 and the flame holes 6 on the upper surface, and burns. In the combustion from the respective flame holes 5 and 6, at the base of the flame, separately separated flames which are blue flames a and b are formed by the premixed flame and merged immediately downstream thereof, and a long diffusion flame luminous flame c. Thereby, a long flame in which adhesion of soot is suppressed is formed.

  A flame from the flame hole 6 is formed inside the rectifying cylinder 7 and a flame from the flame hole 5 is formed separately from the outside. The partial premixed gas having the same primary air rate is supplied to all of the flame holes 5 and 6, but the secondary flame is sufficiently supplied to the outer flame holes 5, so that a blue flame is formed. The flame from the inner flame hole 5 is prevented from entering secondary air by the flow straightening cylinder 7, and a yellow flame is formed.

  Furthermore, the blue flame at the base of the flame has high flame stability and is difficult to blow off. Therefore, even when installed outdoors, a flame excellent in wind resistance can be formed as compared with a simple diffusion flame (red fire combustion flame).

  Here, when a flame colorant is applied to, adhered to, or impregnated into the rectifying cylinder 7, or the rectifying cylinder 7 is formed of the flame colorant itself, the flame colorant evaporates from the rectifying cylinder 7 and emits light by a flame reaction. . Flame reaction is a characteristic wavelength of an ion species when a molecular species accelerated by energy such as combustion heat collides with a metal ion of a volatilized flame retardant, excites the ion, and then returns to the ground state. It is a phenomenon that radiates light. As flame retardants, salts such as sodium (Na; yellow), potassium (K; pink), strontium (Sr; red), copper (Cu; green blue), barium (Ba; green) and the like are used. An appropriate salt is selected depending on the melting point, ease of shaping, or corrosiveness, but carbonates and oxalates are often used. In order to cause a flame reaction by flame colorant in the rectifying cylinder 7, the rectification cylinder 7 is formed of a wire mesh, a metal perforated plate, a metal fiber plate, a metal fiber woven fabric, ceramic, or a combination thereof, and a flame colorant is applied. Adhesion, impregnation or shaping to exert its function.

  Further, when the cylindrical flow straightening cylinder 7 is disposed on the concentric circle of the burner cap 11, a laminar straight flame with little fluctuation is formed. The movement of the flame at this time is the least. Therefore, if the rectifying cylinder 7 is arranged eccentrically with respect to the burner cap 11, or if the rectifying cylinder 7 is deformed such as a polygon, a star, or a straight line, each flame hole 5, 6 and the rectifying cylinder are arranged. Since the distance to 7 is changed, the flame flow is disturbed, the flame is fluctuated, and the decoration effect is enhanced. Alternatively, the same effect can be obtained by putting a spiral wire or steel strip inside the flow straightening cylinder 7. Further, the distance between each flame hole 5, 6 and the rectifying cylinder 7 is changed by making the upper and lower ends of the rectifying cylinder 7 uneven and changing the height of the rectifying cylinder 7. Thereby, a turbulent flow arises in a part of flame flow, and the flame can be made to fluctuate.

  FIG. 6 shows a burner device according to another embodiment. The flame hole 30 of the burner portion 4 is formed by cutting at the corner of the upper edge of the burner cap 11. By opening the corner, the horizontal opening and the vertical opening are integrated. That is, the flame hole 30 on the outer peripheral surface extends to the upper surface, and also serves as the flame hole on the upper surface.

  As shown in FIG. 7, when the flow straightening cylinder 7 is arranged on the upper surface of the burner cap 11, the flow straightening cylinder 7 is applied to the flame hole 30 on the upper surface, and the flame hole 30 on the inner side of the flow straightening cylinder 7 and the flame hole on the outer side. It is divided into 30. From the flame hole 30, a horizontal flame and an upward flame are integrally formed. The formed flame is divided into one passing through the inside of the rectifying cylinder 7 and one passing through the outside, and the above-described implementation as shown in FIG. A flame similar to the shape is formed.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. The shape of the burner part 4 is not limited to a cylindrical shape, and may be a combination of a polygonal cylinder, an elliptical cylinder, a linear cylinder, and a plurality of linear cylinders. Alternatively, the plurality of flame holes 5 may be formed only on the outer peripheral surface of the burner cap 11, and the rectifying cylinder 7 may be placed on the upper surface of the burner cap 11. The rectifying cylinder 7 suppresses the entrainment of the flame on the upper surface of the burner portion 4 and can form a long flame.

DESCRIPTION OF SYMBOLS 1 Burner apparatus 2 Cylindrical body 4 Burner part 5 Flame hole of outer peripheral surface 6 Flame hole of upper surface 7 Rectification cylinder 10 Burner main body 11 Burner cap 20 Case 22 Ventilation hole 25 Grid 26 Shade 28 Protective member 30 Flame hole a Blue flame b Blue flame c Luminous flame d Fuel gas e Air f Combustion exhaust gas

Claims (11)

It is a burner device that sucks primary air with an injector using the pressure of fuel gas under atmospheric pressure to form a partial premixed gas, and burns it in the burner section to produce a flame. A burner device characterized in that a burner is formed in a closed cylinder shape, a plurality of flame holes are formed on the outer peripheral surface of the burner part, and a rectifying cylinder is provided upward on or above the burner part. The burner device according to claim 1, wherein a plurality of flame holes are formed on the upper surface of the burner portion, and the flame holes on the upper surface are located inside the flow straightening cylinder. The burner device according to claim 1 or 2, wherein the flame hole on the outer peripheral surface of the burner portion is formed in a slit shape that opens in the horizontal direction and extends in the vertical direction. 4. The burner device according to claim 3, wherein the flame holes on the outer peripheral surface of the burner portion are extended to the upper surface and serve as the flame holes formed on the upper surface. The primary air rate is limited to 10% to 50% so that the base of the flame contacting the spark plug and the flame detector becomes blue flame and yellow flame is formed on the upper part of the flame. The burner apparatus in any one of 1-4. The material of the rectifying cylinder is made of any one of a heat-resistant metal wire mesh, a metal fiber woven or non-woven fabric, a porous plate, a ceramic plate, a porous ceramic plate, glass or ceramic fiber, or a composite material thereof. The burner apparatus in any one of -5. A flame colorant is attached to or contained in the rectifying tube, or the flame colorant itself or the flame colorant is mixed with other materials to form a raw material, and all or part of the rectifying tube is formed. The burner apparatus in any one of Claims 1-6. The burner apparatus according to any one of claims 2 to 7, wherein the distance between each flame hole and the flow straightening cylinder is made different so that the flame fluctuates. It is an illuminating device using the burner apparatus in any one of Claims 1-8, Comprising: A burner apparatus is installed in the transparent cylinder which has an internal diameter larger than the outer diameter of the said burner apparatus, A burner apparatus and a cylinder Illuminating device characterized in that complete combustion is performed by supplying secondary air from a gap with the body by a draft of combustion heat The lighting device according to claim 9, wherein the cylindrical body has an inner diameter and a length that do not contact the flame. 11. A protection member for restricting intrusion of wind and rain is provided at an air supply port and an exhaust port for the burner device so as to prevent combustion due to wind and rain, thereby enabling outdoor installation. The lighting device described.