CN1015203B - Heater using kerosene as fuel - Google Patents

Abstract

A radiant-type heater is disclosed which has a deflection plate in an upper part of a casing, a burner in a lower part of the casing, and a heating element formed of a thin metal sheet. The heating element is suspended from the deflection plate downwardly towards the burner.

Description

Heater using kerosene as fuel

The invention relates to the radial pattern warming machine, specifically about the warming machine of classes such as radiant type kerosene warming machine, this class warming machine kerosene fired heater (Radiant-tpe Kerosene Flare Heater), promptly mainly be to heat fervid body with burner, the radiant heat of emitting by fervid body to the radiation of shell the place ahead indoor heating.

The present invention provides a kind of new kerosene fired heater again: adopted rotary-atomizing formula burner having on the radiant type kerosene warming machine of fervid body, on this burner, adopted the burner head of annular (shape of a hoof) flame hole with unique opening, fervid body has adopted the structure that is suspended in the combustion barrel again, and for preventing that producing carbon monoxide makes its thermal capacity as far as possible little, guarantee radiation efficiency simultaneously, form durable in use, visual impression good and heater simple in structure.

Have varied as the household central heating machine.But recently people from pursuing the angle of comfortableness and low noiseization, again eye from being easy to make the warm braw warming machine of indoor temperature homogeneous turn to the radial pattern warming machine.This tendency is remarkable especially again at cold district.The beautiful flame that the kerosene fired heater of novelty provided by the invention can be seen people always to be hidden is more emphasized because the effect people of the simple fervid body warm sensation after seeing.

Just showed the warming machine with fervid body in the real public clear 61-24819 of the utility model prospectus of Japan, this red heat body is to utilize the flame of burner to heat.This fervid body adopts sheet metal such as high chromium-stainless steel to make cylindrical shape, and the fervid degree when improving the flame heat with burner almost all is provided with through hole everywhere on it.

The above-mentioned this fervid body that has is earlier made cylinder with metallic plate in mode such as rolling, with modes such as spot welding with the seam that overlaps between its end.Because it places on the burner, can not absorb the stress that is caused by thermal expansion because of heating repeatedly and cooling off, so will produce class thermal deformations such as concavity in some part of its perisporium, this is the shortcoming of this fervid body.This thermal deformation can solve by the thickness that strengthens metallic plate, but at this moment the thermal capacity of fervid body can increase, and can produce the problem that fervid degree descends again.In addition, such burner below in real public clear 60-2415 of Japanese Utility Model and 60-2420, just having: in burner body, make gaseous fuel and burning carry out premixed, again with of the flame hole ejection of this premixed gas from burner head with primary air.But the burner in the last utility model has following shortcoming: owing to must make the auxiliary air pipe run through burner body, the structure of burner body is just complicated, and the installation of auxiliary air pipe simultaneously takes the time very much again; In addition, the shortcoming of the device of back in one utility model is: owing to must form the path of auxiliary air in burner head, so that the structure of burner head also just becomes is very complicated.

Still mainly utilize the warming machine of band reflecting plate of the radiant heat heating indoor temperature of heating part, for example Japanese patent of invention specification spy drives the sort of machine shown among the clear 54-85538: the front portion in its body shell is provided with opening, in this shell, be provided with heat generating components corresponding to above-mentioned opening, and between reflecting plate and body shell, pressure fan is set, so in available radiation and the warm braw dual mode heating clamber.But, this device of said structure has following shortcoming: owing to be provided with thermal insulation board above heating portion, thereby the top board of body shell is not directly to be heated by heating portion, so, when making the burning of heating portion with golf calorific value, the air that has heated up will be trapped between thermal insulation board and the top board, so the temperature of top board will raise to such an extent that surpass necessary temperature, and this temperature rise meeting produces various disadvantages.

Because the pre-mixing combustion in the kerosene burner is easy to be fully burned, and factor such as burned flame is stable and combustion range is big, thereby be widely used for the family expenses fan heater.In general pre-mixing combustion, on heating surface, gasify again after the kerosene atomizing, burn at the burner head place again after forcing it and primary air mixing.This premixed combustion mode is divided into following three classes because of the micronize of fuel and the difference of gasification mode: nozzle jet flow, rotary-atomizing formula and gasifying type.

Rotary-atomizing method of the present invention has following main advantages: very thin being easy to of the micronize particle of kerosene gasified; In response to can utilizing whole gasification face with rotary-atomizing, so even higher boiling fuel or variable color kerosene, the residue of gasification face is also few; Also owing to fuel the best of mixing, so can form stable flame and obtain completing combustion with combustion air.

Main purpose of the present invention provides a kind of improved, the kerosene fired heater that can eliminate various shortcomings in the aforementioned prior art.

The present invention also aims to a kind of kerosene fired heater of providing such: its fervid body can be kept fired state on the one hand well, can guarantee radiation efficiency again on the other hand.

The present invention also aims to provide a kind of best combustion device, in order to heat above-mentioned fervid body.

The present invention also aims to provide the well long-lived again excellence of visual impression fervid body.

The present invention also aims to provide a kind of kerosene fired heater, it has heat radiation device on the one hand, can send warm braw again simultaneously.

The present invention also aims to provide a kind of kerosene fired heater that can control the temperature rising of shell upper.

Warming machine of the present invention has following these parts: there is the shell of opening the front portion; Be arranged at the barrier plate of this shell internal upper part; Be located at the burner of bottom in the aforementioned shell, a plurality of glory holes are arranged on it, can flow out for fuel and Air mixing gas; By the fervid body that thin plate is made, this red heat body hangs on the aforementioned barrier plate towards the previous combustion device.

In said structure, below preferably said burner being made like this: on the part of the tight bottom of above-mentioned fervid body and the external side of aforementioned red heat, do not open glory hole, and open a plurality of glory holes at other positions of the external side of above-mentioned red heat.

In addition, preferably make above-mentioned fervid body form following such structure: it is the coiled sheet to the open front bending of above-mentioned shell, and its both sides form flange.

In other forms of implementation of the present invention, it has following structure: there is the shell of the double wall structure of opening the front portion; Be arranged at the barrier plate on the top in this shell; Be located at the burner bottom, that have a plurality of glory holes that make fuel and the outflow of Air mixing gas in the above-mentioned shell; Hang on fervid body above-mentioned barrier plate, that make by thin plate towards said burner; The breather chamber that in the double wall of above-mentioned shell, forms; Send into the pressure fan of air to this vent chamber; The top of shell front is located in the outlet of above-mentioned breather chamber.

In said structure, also can on the breather chamber of shell upper, plate member be set, to shunting up and down by above-mentioned pressure fan to the air stream of above-mentioned breather chamber outlet.

In the present invention, as the structure of rotary-atomizing formula burner mainly be included as send into burning with the air-feeding ventilator of primary air, make the kerosene gasification form premixed gas and then make the gasification body of its burning, burner motor and the petroleum pipeline made of copper that air-feeding ventilator and rotation diffuser plate are rotated; And the present invention attempts just above-mentioned these parts are integrated in one and forms a compact structure.The gasification body is to make with the cast iron of good heat resistance, has buried heater in it underground, only when igniting it is heated to the necessary temperature of gasification with heater.In the gasification body, form the gasification wall, this by the rotation diffuser plate make micronize the kerosene gasification, the kerosene that has utilized the blade of rotation diffuser plate to make again to gasify fully mixes with air.Top at the gasification body is provided with burner head, and flame just forms thereon.

The course of work of burner is as follows: be heated to and make the kerosene necessary temperature that gasifies by being embedded in the heater of gasification in the body body that will gasify, at this moment burner motor begins rotation, by air-feeding ventilator combustion air is taken in the burner.Start working through the certain hour oil feed pump, kerosene is supplied with the rotation diffuser plate from petroleum pipeline, itself and gasification wall are collided after utilizing the rotation of diffuser plate to make the kerosene micronize, gasified in short moment.After being near the high concentration fuel gas of the gasification wall and making it and the air of being sent into by air-feeding ventilator simultaneously fully mixes, arrive burner head through the gaseous mixture cowling panel by the blade of rotation diffuser plate, in this igniting, the formation combustion flame.After this, this flame is the top of baking gasification body just, utilizes the feedback of this heat and the temperature of the wall that keeps gasifying.

Vertical formula rotary-atomizing of the present invention mechanism has overcome adjusting rotating cone body space difficulty and adjusting the weakness that has leakage of oil when insufficient from petroleum pipeline in the past, has improved the performance of rotary-atomizing.

In the mechanism in the past, it must be delivered to cone from petroleum pipeline in order to make fuel be rotated atomizing, the adjustment precision in its gap must be at 0.8 millimeter to 0.5 millimeter.When the gap is too small, send oil pressure to rise, fuel feed will descend, so that the rotational circle cone produces noise with sending oil pipe to contact.On the contrary, if excesssive gap will depart from from pivot, then fuel supplying normally, and the fuel that produces so-called intermittent combustion and can not send into the rotational circle cone produces leakage of oil along following of petroleum pipeline.

On structure of the present invention, petroleum pipeline is welded in central part has on the oily part in addition of holding of rotating shaft open-work, will hold other part of oil and be located in the gasification body, utilize the power of shooing out of petroleum pipeline, make fuel fly to hit micronize to rotating diffuser plate.The characteristics of this structure are, even fuel can not be sent to the rotation diffuser plate, also can prevent leakage of oil along holding in addition part and drop down onto the bottom surface of gasification body and make fuel gasification of oil.Gap in structure of the present invention owing to utilize the power of shooing out of oil transfer pump, the bearing plane of fuel is big, even therefore greatly to 0.5～4.0 millimeter, also can not produce the problem of leakage of oil, and compares in the past, install adjust all easier.

Structure to burner head of the present invention is illustrated below.As the structure of combustion head, usually, the area in its combustion flame hole depends on burning velocity and the premixed air velocity balance that how to make conventional fuel.As the load performance parameter of glory hole, use the glory hole rate of load condensate shown in the following formula:

Glory hole rate of load condensate=unit interval quantity combusted/glory hole area

Using under the situation of kerosene, the rate of load condensate of this glory hole is under every square millimeter of about situation of 5 kilocalories per hour, and burning velocity and premixed air velocity roughly are in balance; This is got by experience.So, people require the quantity combusted amplitude of accommodation of burner to strengthen in recent years, so this glory hole rate of load condensate also changes a lot on maximum combustion amount and minimum quantity combusted, the result, combustion head of the present invention also reaches per hour 6 kilocalories every square millimeter when maximum combustion.

The internal flame length of flame is expressed from the next:

L∝ D.V/λ

Wherein: L is an internal flame length

D is the flame aperture

V is the spouting velocity of premixed gas

λ is the burning velocity of premixed gas

In following formula, burning velocity is to remove value representation that flow obtains with the internal flame surface area, and the height of flow and internal flame is by measuring, and internal flame is considered as cone.This value changes the burning velocity of premixed gas according to the ratio of burning with the primary air amount.General under the situation that mandatory premixture closes, the admixture of combustion air and gasification fuel gas has determined the shape of internal flame.

The burner head of this invention, making flame hole for the increasing of the low noise and the quantity combusted amplitude of accommodation is the small sircle hole group, for making the fervid body that the is positioned at burner top red heat palpiform growth flame envelope that becomes; This is its emphasis place.For this reason, set out with the briliancy of fervid body by rocking of flame and burning is taken into natural airflow with auxiliary air.

In addition, in order further to improve security, inquired into and reduced the problem that produces carbon monoxide.Originally, the aperture group of burner head does circlewise, but under the situation of the not enough test of air feed etc., be easy to generate carbon monoxide, therefore in the present invention the part of ring-type is cut, so just can not form flame in this part, the fresh air air-flow that comes from the outside will enter the central authorities of flame, like this with regard to less generation carbon monoxide.

Below fervid body of the present invention is illustrated.

When the formation of considering burner flame, must be from whole primary combustion characteristic, burning is set in 0.5～1.0 scope with the air ratio of primary air.But,, be necessary to carry out second-time burning with auxiliary air with burning owing in this scope, can produce a large amount of carbon monoxide.Observe the flame of burner, can see, form internal flame by burning with primary air, its clustered aggregates forms bigger flame envelope together.But, still have unburned fuel gas in the flame envelope, and be full of carbon monoxide.But, do not measure carbon monoxide in flame envelope and burning with the contact portion of auxiliary air, be completing combustion as seen.

Yet, descending because of air excess makes the temperature of flame on the flame envelope top of stretching longly, burning material not to the utmost also can produce the carbon monoxide of trace.Put into the barrier plate of level on the top of this flame envelope, the top along continuous straight runs of flame is stretched, contact with auxiliary air with burning, barrier plate plays the effect of warming plate again simultaneously, so just can completing combustion.Experimental result shows that the burner under this state can suppress the generation of carbon monoxide.

Yet in experiment, do fervid body more as far as possible during beginning, the fervid body of having used about 30 kinds of shapes to vary in size is put in the flame envelope to be observed, but these fervid bodies all can produce carbon monoxide.But, the fervid body that shape is identical with size, when using thin sheet material, the carbon monoxide of generation is just fewer.By inference, its reason is that fervid body is the radiation body of heat, is again the cooling body of flame simultaneously, when putting it in the flame, owing to seized the necessary heat of burning, and the fuel gas of not combustion can not be reacted, so just produced carbon monoxide.Therefore we have understood that the thermal capacity of fervid body is more little, help suppressing carbon monoxide more.

When determining the shape of fervid body, except above-mentioned item, also to have inquired into fervid homogeneity, briliancy and had or not thermal deformation etc., the conclusion that obtains is semicircular cylinder shape the best.

Then, again various tests have been carried out in the position that hangs on the fervid body in the cylinder.According to these tests as can be known, red heat deterioration when being positioned at the top of flame envelope, with the part that burning contact with auxiliary air, because of fervid body flame temperature descends, combustion reaction is incomplete, so the carbon monoxide of generation is more and more.When fervid body was positioned at the rear portion, the carbon monoxide of generation was minimum, and this is because the cutting part of burner head in the rear portion, and makes fervid body leave flame envelope.When hanging under the center of fervid body at flame envelope, red heat the best, and the carbon monoxide that takes place is also few.The central part temperature height of flame envelope, fervid body easily reaches fervid degree, and fervid body is again a cooling body simultaneously, can make to burn insufficient and the generation carbon monoxide.But by inference, because of being wrapped by flame in the outside, combustion reaction is constantly carried out along the peripheral direction of flame, so the carbon monoxide that produces is few.

From as can be known above, should be positioned at the central authorities of flame envelope respectively and make with board-like material in order to reduce thermal capacity about the position of fervid body of the present invention and shape.In addition,, make its two ends have two places to be bent to form semi-circular shape, see it is cylindrical shape from the front because thermal deformation takes in from the profile aspect by force and also.Material as fervid body adopts ferrite type high temperature resistant stainless steel SUH-21(18Cr, 3Al steel), 0.3 millimeter of thickness of slab.This stainless steel SUH-21 is good because of the content acid resistance of chromium and aluminium, and fervid body is peeled off by the also less generation flakey of heating and cooling repeatedly, is good high temperature resistant sludge proof steel.

Fig. 1 is the profilograph of warming machine of the present invention;

Figure 1A is the partial enlarged drawing of Fig. 1;

Fig. 2 is the profile along II among Fig. 1-II line;

Fig. 3 A and Fig. 3 B are the axonometric drawing and the vertical view of the fervid body among the present invention;

Fig. 3 C is the vertical view of fervid another form of body;

Fig. 3 D has shown the position relation of fervid body with respect to burner;

Fig. 4, Fig. 5 and Fig. 6 are respectively the side view of the warming machine among the present invention, front view and the vertical view behind the protective device of moving away;

Fig. 7 is the detailed profilograph of the burner among the present invention;

Fig. 8 is the vertical view that is used for the burner head on the burner of Fig. 7;

Fig. 9 is the profile along the IX among Fig. 8-IX line;

Figure 10 is the vertical view that shows other embodiment of burner head.

With reference to the accompanying drawings most preferred embodiment of the present invention is illustrated.

In Fig. 1 to Fig. 6 as seen, the front panel 6 that body shell (shell) 1 has base plate 2, cycle side plate 3, the top board 4 as microscope carrier and has peristome 5.As shown in Figure 2, cycle side plate 3 is by an integral body that a metallic plate is bent to form left and right sides panel 3A and backplate 3B; The rake 7 that tilts towards backplate 3B is arranged on aforementioned side panel 3A, and its phase mutual edge distance of convergence 3B is more little more.

Be installed with burner 8 on above-mentioned base plate 2, this device has motor 9 and the interior air feed case 11 of having adorned the air-feeding ventilator 10 that utilizes motor 9 rotations, is provided with the cylindrical shape burner 12 that makes the kerosene stock gasification, and combustion simultaneously on the top of this air feed case.The fuel that has gasified in this burner 12 mixes with the combustion air from air-feeding ventilator 10, from glory hole 13 ejections of burner head 12a, forms blue flame F and burn above this glory hole 13.Be provided with the cylindrical shape burner casing 14 that previous combustion device 12 is fenced up on the top of air feed case 11, its perisporium is provided with a plurality of auxiliary air holes 15 that import auxiliary air in burner casing 14.Air feed case 11 has air supply pipe 16, supplies with room air as combustion air in this air feed case by filter 17, has been installed with on the heel slab 2 of previous combustion apparatus 8 and has held oily ware 18.Most preferred embodiment about burner 8 and structure all around thereof will be illustrated with reference to Fig. 7 in the back.

The rear portion of holding oily ware 18 is also outwards more outstanding than the backplate 3B of aforementioned cycle side plate 2.And its front portion two side-prominent to aforementioned air feed case 11 also.Set fuel feed pump 19 is types such as electromagnetic pump, and it picks up the aforementioned fuel that holds in the oily ware 18, supplies with previous combustion device 12; In addition, in the outside of body shell 1 plug-in type fuel tank 20 is housed, it holds oily ware 18 postcombustions to aforementioned, and is being supported in the mode that can shed by fuel tank guider 22, and this guider 22 forms one with the top that surrounds the fuel tank guard shield 21 that holds oily ware 18.Igniter plug 23 and flame detector 24 are supported in the mode of passing previous combustion device shell 14, are fixed in the ignition transformer 25 that holds on the oily ware 18 and give igniter plug 23 high voltages.

Corresponding to opening 5 places of aforementioned front panel 6, be provided with the combustion barrel 26 as heating portion in body shell 1, this combustion barrel 26 is to make hollow circle tube with heat-resisting clear glass, and the bottom of the flames F exiting of previous combustion device 12 in this combustion barrel 26 upwards emits.In body shell 1, be provided with its separate up and down between wallboard 27, its is also used as simultaneously table plate again; The backplate 3B of the trailing edge of this wallboard 27 and aforementioned cycle side plate 3 is affixed, and is simultaneously and for example shown in Figure 2, and two lateral margins stand away with the inner face of the side panel 3A of cycle side plate 3 again about it.In addition, on the positions of central authorities downside support 28 is arranged approximately, the lower end of supporting previous combustion tube 26 in the mode that cooperates at aforementioned wallboard 27; Between the lower surface of a wallboard 27 and previous combustion device shell 14, have about 5～10 mm clearance A.Being provided with reflecting plate 29 its plan view shapes at the rear portion of combustion barrel 26 is circular arc, its lower end is combined into one with modes such as spot welding and a wallboard 27, formed space B between this reflecting plate 29 and the aforementioned cycle side plate 3, the lower end of space B is communicated with the following side space of aforementioned wallboard 27.

What numeral 30 was represented is the recuperation of heat pressure fan, it will quicken by the room air that filter 31 sucks, blow in aforementioned space B, it is constructed as follows: CD-ROM drive motor 31, be fixed on this motor drive shaft 32, its diameter is approximately the fan hub 35 that 60～80 millimeters gentle breeze air-supply is upwards offered with multiple-blade ring-type fan 33, blow-off outlet 34; Be provided with guide card 36 on this fan hub 35, it guides part into side by the wind that blow-off outlet 34 upwards blows out.

Upper end at aforementioned reflecting plate 29 is provided with top reflecting plate 37, is supporting columnar aiutage 38, but aiutage 38 runs through reflecting plate 37 and can be up and down; The bottom of this aiutage 38 combines with the exhaust cowling panel (barrier plate) 40 with a plurality of steam vents 39, and the upper end that hangs on the fervid body 41 of about center in the previous combustion tube 26 is fixed on the cowling panel 40.

This red heat body 41 is high chromium rust free steel plates (SUH-21) of being about 0.3 millimeter (0.3～0.5) with a slice thickness of slab with mode moulding such as punch process, its central authorities be provided with to aforementioned opening 5 bendings, the cross section is the bend 71 of U font approximately, is provided with outwardly directed flat flange part 72 on the left and right sides of this bend 71 again.Said flange 72 is arranged on the total length of bent bodies, and the upper end of the upper end of this flange 72 and aforementioned sweep 71 is bending forming respectively, forms installation sheet 73, and constitutes one with flange 72.Therefore in the present invention, this red heat body 41 is the locational modes by about center of the fervid body support 40A that aforementioned installation sheet 73 is fixed in aforementioned waste gas cowling panel 40, hang in the aforesaid combustion barrel 26, like this, under the state in hanging on combustion barrel, the lower end and the previous combustion device 8 of fervid body 41 are approaching, and touch burner 8 flames F exiting internal flame and be heated to fervid degree.In addition, shown in Fig. 3 D, fervid body 41 is located at the inboard of the shape of a hoof flame hole 13 on the burner head 12a, can be wrapped by flames F exiting and contact with the internal flame of flames F exiting.

In addition, in this embodiment, the cross section of the bend of fervid body 41 roughly makes the U font, but also can make the V-shape roughly shown in Fig. 3 C.

Be provided with the thermal insulation board 47 of inclination above previous combustion tube 26, it is higher towards that side of front openings 5.Thermal insulation board 47 is fixed on the reflecting plate 37 by the lappet 48 of two sides about it, has formed exhaust chamber C below this thermal insulation board 47, and exhaust chamber C has comprised the inside of aforementioned aiutage 38, and by aiutage 38 and combustion barrel 26 internal communication.Thereby, on the downside tabs 50 that the leading section with reflecting plate on aforementioned 37 is bent to form, be provided with the front end exit 49 of a plurality of exhaust chamber C.In addition, between the rearward end of aforementioned thermal insulation board 47 and top reflecting plate 37, be provided with the little clearance D that exhaust chamber C is communicated with the upper end of aforesaid space B.The abnormal temperature detector 69 that shuts down when being used for the temperature anomaly rising corresponding to this little clearance D being provided with.Formed the breather chamber E that is communicated with aforesaid space B at aforementioned thermal insulation board 47 with upper end in the body shell 1, on the upside tabs 52 being connected as a single entity through being bent to form, be provided with the front end exit 51 of a plurality of breather chamber E with aforementioned downside tabs 50.Thereby the outlet 49 of aforementioned exhaust chamber C is below the outlet 51 of breather chamber E, and its position is than outlet 51 about 15～30 millimeters bigger than normal to the inside.Above aforementioned thermal insulation board 47, be provided with auxiliary thermal insulation board 53.In order to make it have desired flow distribution plate function further, this auxiliary thermal insulation board 53 also can resemble to have shown in Figure 1A to the outstanding lappet 53a of space B.

Dispose operating portion 54 on the top of aforementioned top board 4, established the interval S that is approximately 2～5 millimeters between this operating portion 54 and the aforementioned top board 4.F is provided with projection 55 in order to obtain at interval, and the part of the lower panel 56 of operating portion 54 is also outstanding downwards.57 expression guidance panels are in the front of plastic top case 58 side, and it tilts upward, and various operation button 59A and indicator 59B are arranged on it.60 expressions place the operating portion circuit substrate in the operating portion 54; the 61st, be located at the protection member on the aforementioned opening 5; have a plurality of cross bars 63 that left and right sides fixed bar 62 and its end and fixed bar 62 are fixed; the cross bar 63 of topmost is lower than the outlet 49 of exhaust chamber C, so just is difficult for being discharged from the gas heating.

In addition, as shown in Figure 6, owing on the rake 7 of the side panel 3A of aforementioned cycle side plate 3, established opening respectively, therefore, even neighbouringly also can keep the suction inlet 64 of the recuperation of heat blower 30 that covers with aforementioned filter 31 and the air supply opening 65 of the steam line 16 that aforementioned air feed filter 17 covers with what machine was installed on indoor wall W, and sufficient distance is arranged between the wall.In above-mentioned structure, when starting working, at first drive burner 8, make air-feeding ventilator 10 rotations by motor 9, send into burner 12 with this combustion air that will suck in the air feed case 11 as primary air, the portion of air in the air feed case 11 is put to the body shell 1 of a wallboard 27 belows as auxiliary air.So the gasification combustible gas premixed of the primary air that infeeds burner 12 and the kerosene stock of sending in the burner 12 and having gasified, this premixed gas is sprayed in the combustion barrel 26 by glory hole 13, from filling in 23 igniting, forms blue flame F by point, burn.After this burner 8 takes fire, aforementioned flames F exiting and high temperature combustible gas heat fervid body 41 makes it reach fervid, its burnt gas flows in the exhaust chamber C by the exhaust passage hole 39 of waste gas cowling panel 40, by the catalyst 45 of waste gas guide plate 44, discharges from the outlet 49 of exhaust chamber C.

Below just with reference to Fig. 7 to Figure 10, burner 8 and its structure and work etc. are illustrated.

In Fig. 7, the 80th, the cylindrical motor shell is provided with air supply opening 81 in the suitable place of its sidewall, is communicated with air feed case 11 by blow vent 82.Air feed case 11 is communicated with burner casing 83 by heat-insulating shield 84 again, on the sidewall of burner casing, has roughly offered a plurality of air ports 85 on the whole circumference, so motor shell 80, air feed case and burner casing 83 are linked in sequence with this.The centre of the motor drive shaft 9A of the motor 9 in being located at aforementioned motor shell 80, and in air feed case 11, the air-feeding ventilator 10 of turbine type has been installed.

About central part in burner casing 83 is provided with the burner body 86 of round-ended cylinder shape, has buried gasification heater 87 on its perisporium underground, and this burner body 86 links up by heat-insulating shield 84 and aforementioned air feed case 11.In addition, the bottom approximate centre portion of this burner body 86 is provided with primary air inlet 88, its inner gasification premixing cavity 89 that forms.In the gasification premixing cavity 89 of the termination of aforementioned motor drive shaft 9A, the disperse agitating plate 90 of plate of a double as fuel has been installed, fuel feeds to this agitating plate 90 from passing primary air inlet 88 with the fuel feed pipe 91 that the premixing cavity 89 that gasifies faces mutually.The 92nd, be located at other part of fixing on the primary air inlet 88 gasification premixing cavitys 89 that closely are close to, it is supporting the exit portion of aforementioned fuel feed pipe 91, prevents the outside of fuel along this fuel feed pipe leakage to the premixing cavity that gasifies simultaneously again.The 93rd, valve plate, it wants biased outward than the valve 94 that is positioned at central authorities approximately, be provided with a plurality of through holes 96 in the ring-type mode on it, the 97th, be fixed in the carrying cylinder that round-ended cylinder shape is arranged above cowling panel 95 central portions, these in addition parts be installed in the burner body 86 with the order of valve plate 93, cowling panel 95 and carrying cylinder 97.

Be installed on the burner head 12a that the top end opening of previous combustion body 86 closely is close to, its structure is formed by stacking by mainboard 100, woven wire 101 subplates as shown in Figure 9 in turn from top to bottom.As shown in Figure 8, outside the center and outer peripheral portion of this burner head 12a, run through many small sircle holes 103, formed horseshoe-shaped glory hole portion 105 therefrom.In addition, the diameter of aforesaid many small sircle holes 103 is decided to be about 1.8～2.0 millimeters.

In above-mentioned structure, when 87 energisings of gasification heater, burner body 86 promptly is heated; When the temperature of this burner body 86 reached the gasification temperature of kerosene, burner Temperature Detector (not shown) will detect this temperature, and at this moment motor 9 begins to drive, agitating plate 90 rotations of air-feeding ventilator 10.Just make the work of oil feed pump (not shown) after 9 work of aforementioned motor, with kerosene stock from fuel feed pipe 91 feed to the agitating plate 90 that rotating below.Like this, the fuel of delivering to agitating plate 90 disperses into particulate because of centrifugal force, and when this fuel that disperses touched the inner peripheral surface of the burner body 86 that has been heated, moment was just gasified, and becomes gas shape fuel at the gasification premixing cavity.

On the other hand, burning from air-feeding ventilator 10 feeds to gasification premixing cavity 89 with primary air by primary air mouth 88, aforementioned gas shape fuel carries out premixed at gasification premixing cavity 89 with primary air by agitating plate 90, this premixed gas is by small sircle hole 103 ejections from the flame mouth part 13 of burner head 12a of valve 94 and through hole 96, by igniting such as igniter plug (not shown), form flames F exiting above aforementioned flame mouth part 13, burning presents blue flame.

Yet in the present invention, because the flame mouth part 13 of burner head 12a forms the shape of a hoof, therefore formed the flames F exiting that stretches into tubular upward in glory hole portion 13, simultaneously, on the circumferencial direction of this flames F exiting, some has formed the no flame space X with certain amplitude, and because the effect of bleeding that burning gases rise and bring, make the middle body of flames F exiting form negative pressure, so auxiliary air shown in the arrow G of Fig. 7, sucks and supply with the central part of flames F exiting from no flame space X.Therefore, utilize the gravity-flow ventilation of the effect generation of bleeding of flames F exiting, can supply with the central part auxiliary air of flame, the supply of auxiliary air can reduce combustion noise on the one hand, can suppress the generation of CO on the one hand again.On the other hand, owing to there is no need to make auxiliary air in burner body and on burner head, to form the path of auxiliary air, made complicated designs simplification.In addition, fix on below 2 millimeters, can suppress fervid degree, can improve the durability of burner head 12a widely for the woven wire 101 that prevents reverse fiery usefulness if constitute the diameter of the small sircle hole 103 of glory hole portion 13.In addition, for the formation of horseshoe-shaped flame portion 13, also can be as Figure 10, form like horseshoe-shaped glory hole portions with about 6 to 10 fan-shaped opening 13a.

So, after burner 8 takes fire, the burning gases of flames F exiting and high temperature heat fervid body 41 makes its red heat, and this burnt gas is discharged from the outlet of exhaust chamber C, and this is consistent with afore-mentioned, on the other hand, when flame detector 24 detects existing of flames F exiting, just drive recuperation of heat pressure fan 30, room air is by multiple-blade ring-type fan 33, be inhaled in the fan hub 35 through filter 31, again lower end from ejiction opening 34 to aforesaid space B.The gentle breeze air stream one side that flows into this space B reclaims the heat of reflecting plate 29 of the radiant heat heating of burned tube 26, and one side rises, and wherein a part flows into exhaust chamber C from little clearance D, and its most of breather chamber E of inflow also discharges from the outlet 51 of this breather chamber.

According to the foregoing description, between the top board 4 of thermal insulation board set above the combustion barrel 26 47 and body shell 1, form breather chamber E, because the wind pushing air of the pressure fan 30 of the air-supply of the space B between reflecting plate 29 and body shell 1 flows into aforementioned breather chamber E, thereby the reflecting plate 29 that risen of the wind recovered temperature that can utilize pressure fan 30 to send and the heat of thermal insulation board 47, and be discharged into indoor, this has just improved the heating installation effect, can suppress the cycle side plate 3 of main body 1 and the temperature of top board 4 simultaneously again effectively and rise.

Have again, under aforementioned thermal insulation board 47, formed the exhaust chamber C that is communicated with previous combustion tube 26, the air of emitting from the outlet 51 of breather chamber E flows, can reduce the EGT of emitting from the outlet 49 of exhaust chamber C, so just can suppress to rise, prevent that burn etc. is dangerous in possible trouble because of the temperature of front panel 6 upper ends that produce of contact waste gas.And because the outlet 49 of exhaust chamber C will more be positioned at the inboard of body shell 1 compared with the outlet 51 of breather chamber E, so just be not easy to touch the outlet 49 of the exhaust chamber C of high temperature.

According to the present invention, fervid body 41 is to be made of the sheet material that has towards the bend 71 of machine opening 5 one lateral bending songs, like this, the stress that produces because of thermal expansion during heating can utilize the bending of bend 71 to absorb, so cause depression because of not having local fervid body generation thermal deformation on the one hand, and can prevent thermal deformation, owing to need not making tubular, fervid body made designs simplification on the other hand.In addition, the flange part 72 of bend two sides has increased fervid face, can obtain large-scale radiation, so also just can improve the heating installation effect.

Claims (4)

1, a kind of heat radiation type warming machine comprises:

A front panel has the shell of opening, a upper space and a lower space that is limited by the lower housing portion branch that is limited by housing top;

A cowling panel that is installed in the described upper space;

A burner that is installed in the described lower space is formed with a plurality of glory holes on it, be used for by fuel and Air mixing air-flow; And

A heater element that hangs towards described burner downwards by described cowling panel, described heater element comprises a sweep, it has one and protrudes side and a concave side, and the raised side of the sweep of described heater element is facing to the described opening of described shell front panel.

2, heat radiation type warming machine according to claim 1 is characterized in that:

Described burner comprises a burner head, is formed with many glory holes on it,

Described burner head comprises a first surface part that does not have glory hole, its be positioned at described heater element under, the second surface part that a plurality of glory holes are arranged, it is positioned at the outside of described first surface part, and the 3rd surface portion that does not have glory hole, its outside that is positioned at described first surface part is adjacent with the second surface part.

3, heat radiation type warming machine according to claim 1 is characterized in that described heater element further comprises two outwardly directed flange portions in the both sides by described sweep.

4, a kind of heat radiation type warming machine comprises:

There is the shell of the double-wall structure of opening a front, upper space that is limited by housing top and one divide the lower space that limits by lower housing portion, and the shell of described double-wall structure is by first breather chamber that the space limited between described outer wall and the inwall by an outer wall, inwall and one;

A cowling panel that is installed in the described upper space;

A burner that is installed in the described lower space is formed with a plurality of glory holes on it, be used for by fuel and Air mixing air-flow;

A heater element that hangs towards described burner downwards by described cowling panel;

Blowing plant is used for force air is sent into described first breather chamber; With

The top that thermal insulation board is bearing in described cowling panel is used for limiting one second breather chamber above thermal insulation board, second breather chamber is communicated with the first breather chamber fluid, described second breather chamber has an outlet at the front panel of described shell, outlet is positioned at the top of the described opening of described shell front panel, thermal insulation board is used for limiting an exhaust chamber below thermal insulation board, described exhaust chamber has one and is positioned on the described shell front panel, above the described opening but the outlet below the outlet of described second breather chamber;

The described outlet of described exhaust chamber is positioned at the rear of the described outlet of described second breather chamber.

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