JPH01252808A - Radiation heater - Google Patents

Abstract

PURPOSE: To obtain a radiation heater having excellent heat efficiency, by providing a radiation apparatus in which a combustion product flows along a flow passage to enter a heat exchanger, and a reflection apparatus for reflection radiated heat from the radiation apparatus externally radially from a housing. CONSTITUTION: A combustion product enters an inlet end 64 of a flow passage 60 from an intake end 40 of a combustion chamber 14 in a housing 12, is reduced in a speed thereof with a baffle partition wall 68 and a spiral baffle 70, and is discharged into a collector ring 76 of a heat exchange chamber 16. In the heat exchange chamber 16 air is heated with the combustion product in the collector ring 76 when it passes through a coil 92 of a pipe 84 with the aid of a blower 94. A high temperature air outlet conduit 90 preheats air entering a burner 44. Corrugations 61 to improve a heat output from the radiation apparatus 20 ensure a large surface for heat radiation, and the radiation apparatus 22 reflects heat from the radiation apparatus 20 to the outside. The radiation heater 10 is used to provide heating until water circulates in the heat exchanger 18 to be converted to steam.

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field 1 The present invention is directed to a radiation heater (radiant heat
Regarding r).

[Prior Art] Criteria for evaluating the performance of radiation heaters are their output, efficiency, and flexibility. Power is important in applications such as land sterilization because sterilization will not occur unless a certain heat level is achieved. Efficiency is important because fuel costs determine whether it is economically viable to use a heater in a particular application. Flexibility is based on each heat requirement! A is baking soda because λ varies from one person to another or within one industry with its application.

OBJECTS OF THE INVENTION The main object of the present invention is to provide an improved radiation heater.

[Means and operations for solving the vR problem] Broadly speaking, the present invention provides a housing having an inlet end defining a center axis, an inlet end having an inlet opening, and an outlet end having an outlet opening; a combustion chamber within the housing forming a flow path for combustion products along an axis; a heat exchange chamber surrounding an intake portion of the combustion chamber; and a heat exchanger disposed within the heat exchange chamber. , a radiating device forming an exhaust end of the combustion chamber and radiating heat radially outwardly from the exhaust end of the combustion chamber, the radiating device including the central axis? It has a large number of fluid flow paths arranged in twelve planes, each flow path has an inlet end communicating with the combustion chamber and an outlet end opening into the heat exchange chamber. by means of which the products of combustion enter into these passages and flow along them into the heat exchange chamber; A radiation heater is provided that includes a reflector to reflect radiated heat 91 axially outwardly from the housing.

Embodiment 1 A preferred embodiment of the present invention is a radiation heater, designated generally by the numeral 10 in the drawings, and will be described in detail below with reference to FIGS. 1-5.

The main components of this radiation heater 10 are the housing 1
2, a combustion chamber 14, a heat exchange chamber 16, a heat exchanger 18, a radiation device 20, and a reflection device 22.

The housing 12 is generally cylindrical in cross section and includes a central core portion 1
3 and a peripheral portion 15, the portions 13 and 15 being fixed in relative position by a number of struts 17 welded to these portions.The housing 12 has front and rear mounting brackets 24 and 26 is installed. The rear single bracket 26 has openings 28 which are adapted to receive fixed shafts 30. A portion 32 of this fixed shaft 30 is received within an opening 34 in a support structure 36 such that the housing 12 is mounted within a factory building or on a platform 19 of a trailer 21 as shown in FIG. It is now possible to get kicked. The front mounting brackets 1-24 are connected to the hydraulically operated mounting structure 23 on the platform 19 so that the central axis 38 of the radiation heater 10 can be vertically adjusted. Group 04 wire heater 1
0 cannot be adjusted laterally except by the relative positioning of the platform 19 on which it is mounted.

Combustion chamber 14 is disposed within housing 12 and defines a central m-line 38 . This combustion chamber 14 has an intake opening 42
Turn the intake end 40 to the right.

11 gas burners 44 are arranged in this intake opening 42 . Combustion air is delivered to burner 44 by air conduit 48.
The combustion chamber 14 is fed to the bar J-44 through a fresh air inlet 46 connected to the end 50 of the combustion chamber 14.
4 is f181- and the discharge 9 part 52 is f-1-. The combustion chamber 14 forms a flow path for combustion products along a central axis 38 (
) 4, the intake end 40 of the combustion chamber 14 is η
The dimensions are gradually increasing.

The exhaust end 52 of the combustion chamber 14 tapers in size from the intake end 40 toward the exhaust opening 54 of the combustion chamber 14 .

The burner 44 has a fuel pump 45 which draws fuel from the fuel tank 47 through a filter 49 and a fuel suction 1151. burner 4
4 is a two-stage burner, which includes a first stage nozzle 53 and a second stage nozzle 53;
It has a step nozzle 55.

The flow of fuel from fuel pump 45 to nozzles 53 and 55 is controlled by solenoid valve 57, which opens to allow passage of fuel at 34 second intervals. If the air-fuel mixture does not ignite, solenoid valve 5.7 is held closed to prevent excess fuel from being propelled to burner 44. Excess fuel is returned to fuel tank 47 through fuel return conduit 59. The provision of a solenoid valve 57 and five fuel return conduits is a safety measure to avoid the possibility of an explosion. Burner 44 is adapted to operate on any of a number of fuels, such as propane, natural gas, diesel fuel, kerosene, and similar fuels.

The radiator 20 has a large end 56 disposed adjacent the intake end 40 of the combustion chamber 14 concentrically about the axis 38 and a small end 58 disposed concentrically about the axis 38.
It is in the shape of a corrugated conical shell with a The radiator 20 forms the exhaust end 52 of the combustion chamber 14 and serves to radiate heat radially outwardly from the exhaust end 52 of the combustion chamber 14 . The radiation device 2o has a number of waveforms 61 arranged in a plurality of planes including the central axis 38.

These corrugations 61 are 45.72n (1
It is open except for the 8in. Passage 60 has an inlet end opening 64 communicating with combustion chamber 14 and heat exchange chamber 16.
It has a distal outlet end 66 that communicates with the outlet end 66 . The combustion products from the combustion chamber 14 are transferred to the small end 58 of the conical radiator 20.
It flows out along the open corrugation 61 and eventually enters the passageway 64 of the channel 60 and flows into the heat exchange chamber 16 through the outlet 66. A baffle partition 68 and a helical baffle 7 are used to slow the flow of exhaust gas from the inlet end 64 to the outlet end 66 so that heat can be retained within the radiator 20.
0 is disposed within passageway 60 as shown in FIG.

The conical radiator 20 has an irregular outer surface 72 which defines corrugations 61 on both the inner and outer surfaces. The corrugations 61 serve to provide a larger surface for heat radiation. The reflector 22 surrounds the radiator 20 and reflects the heat radiated by the radiator 20 outward in the axial direction of the housing 12 . The radiation device 20 has the trade name "FERROTHERM 4816 J" (Ferrotherm 4816 J).
Therm 4816).

FeOtherm 4816 was originally developed for use in nuclear reactors and contains 79.9% nickel and 0.29% titanium to provide heat resistance, and 1% titanium to provide flexibility.
．． Contains 2% aluminum. The surface of the reflector 22 has been subjected to a treatment described as ``glo-heated'' by Kurzub Industries of Germany. Applicants have provided further details of this treatment for the purpose of a complete description. I tried to know the details, but
This process was said to be a commercial secret of Kurtubu Industries.

Heat exchange chamber 16 surrounds intake end 40 of combustion chamber 14 . The heat exchange chamber 16 has two annular rings, a collector ring 76 and a discharge ring 78. A collector ring 76 communicates with the outlet end 66 of each channel 60. Discharge ring 78 has an opening 8o connected to discharge conduit 82. There are two open lowers 7 allowing exhaust gas communication between the collector ring 76 and the exhaust ring 78. The exhaust ring 78 is smaller in size than the collector ring 76 because by the time the air reaches the exhaust ring 78 it has cooled and contracted slightly.

A heat exchanger 18 is arranged within the heat exchange chamber 16. This heat exchanger 18 consists of two pipes 8 in the shape of a coil.
4 and 86. Pipe 84 is located within collector ring 76 . The vibrator 84 has one end 85
is connected to the cold air intake conduit 88 and the opposite end m 89
is connected to hot air outlet conduit 90. By 184
are formed into nine coils 92 within the collector ring 76. An air blower 94 is connected to the cold air intake conduit 88 at the end 85 of the vibrator 84 for blowing ambient air through the vibrator 84. As the air circulates within the coil 92 of the vibe 84, it is heated by the combustion products within the left ring 6. An end 89 of the vibrator 84 is adapted to be connected to a conduit arrangement δ of a hot air heating device (not shown). Vibe 86 is disposed within ejection ring 78 . The via 186 is connected at one end 95 to the cold water intake conduit 96 and at the opposite end 97 to the high water outlet 01@98. Cold water intake conduit 95 is connected to a water supply (not shown). A cup control valve 100 is located at the end 95 of the vibrator 86 to control the flow of water. The vibrator 86 is formed in the shape of three L] coils 02 within the discharge ring 78 .

As the water is circulated through the coil 102 of the vibrator 86, it is heated by the combustion products in the feed ring 78. The end 97 of the vibrator 86 is equipped with a high-temperature water heating device (shown in the figure).
1'') to the circuit arrangement of the vibrator.

In order to operate the lli heater 10, burner 4
4 is connected to the fuel r4 tank 47, and air/f! 5
Air is drawn through air conduit 48 and through fresh air inlet conduit 46 until the feed f12 compound is ignited within combustion chamber 14. The products of combustion flow through the intake opening 42 at the intake end 40 of the combustion chamber 14 along the central axis 38 to the exhaust port 54 at the exhaust end 52 of the combustion chamber 14.
11-At the outlet end 52, the combustion products flow through the exhaust opening 54 and into the inlet end 64 of the flow path 60. Channel 60
The flow of combustion products along the baffle partition 6 in the flow path 60
8 and! ! 1, which is decelerated by an 8-circular batunol 70;
When the combustion products reach the outlet end 6 of the flow path 60, they are discharged into the collector ring 76 of the heat exchange chamber 16. The combustion products then flow around the collector ring 76 of the heat exchange chamber 1G into the exhaust ring 78 of the heat exchange chamber 16 and finally exit through a single exhaust conduit 82.

At the same time that the combustion cycle described above is being carried out, two heating cycles are carried out in the heat exchanger e:Z16. One of these cycles causes air to be blown by blower 94 through cold air inlet conduit 88 and into pipe 84 . Air is circulated through the pipe 92 of the vibrator 84 until it reaches the hot air outlet conduit 90. As the air passes through the coils 92 of the vibe 84, it is heated by the combustion products in the collector ring 76. Hot air outlet conduit 90 passes through fresh air inlet conduit 46 to burner 4.
It serves the secondary function of preheating the air entering the air.

This means that the air inlet conduit 46 and the hot air outlet conduit 9
This is done by arranging 0 and N closely so that partial heat exchange takes place, so δ can be achieved. Preheating the air entering the burner 44 is believed to be acceptable, as long as the air is not overheated and aids combustion, preheating the air to 50°C per scoop. Due to the tendency of air to expand before it is heated, excessive heating of the air can create undesirable backing within the device.

Water is drawn into the pipe 86 from the low-temperature water intake pipe section 96 by the other cycle of the two (2) cycles mentioned above. The water exiting from the hot water outlet 98 is heated by the combustion products in the output ring 78.The water exiting from the hot water outlet 98 is either heated and used as heated water, or a hot water heating device (
Illustrated t! ) can be connected to

The output of heat from the radiator 20 is enhanced by the waveform 61 and the reflector 22 (ζ). The waveform 61 provides a large surface for radiation of heat. It reflects it in the opposite direction.

By the way of the foregoing, it is known in the art that a baffle partition 38 and a helical baffle 10 slow down the transfer of combustion products and retain heat within the radiator 20. (Radiation device 2
It is clear that a further increased power can be obtained from 0. Similarly, greater efficiencies may be obtained by preheating the air entering burner 44 and using heat exchange chamber 16 and heat exchanger 18 to obtain other forms of heat from the same fuel source. is clear. Similarly,
It is clear that the radiant heater 10 has increased flexibility and adaptability as radiant heat, hot water, or heated air can be supplied according to the requirements of the application. It will therefore be apparent to those skilled in the art that radiation heater 10 can be applied to provide steam heating by circulating water through heat exchanger 18 until it is converted to steam.

The radiation device 20 is constructed to withstand concentrations of approximately 1500°C. In controlled tests conducted by Alberta Research Carantil, the radiant heat generated was between 1150 and 1250'C and the hot air output was 16.98 meters per minute (600f) at 680°C humidity.
t")rct five.

[Effects of the Invention] Since the present invention is configured as described above, the heat is further increased from the radiator by the baffle partition and the spiral baffle that slow down the movement of combustion products and retain heat within the radiator. Even greater efficiency is achieved by preheating the air entering the burner and using heat exchange chambers and heat exchangers to obtain other forms of heat from the same fuel source. Further, the radiation heater according to the present invention has excellent effects such as increased flexibility and adaptability to radiant heat and high temperature water.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a preferred embodiment of the invention. FIG. 2 is a cross-sectional view of the preferred embodiment of the present invention taken along the fr plane line 2--2 in FIG. FIG. 3 is a cross-sectional view of the preferred embodiment of the present invention taken along section line 3--3 of FIG. FIG. 4 is a cross-sectional view of the preferred embodiment of the present invention taken along rIfr plane line 4--4 in FIG. M1. FIG. 5 is a cutaway perspective view of a preferred embodiment of the present invention. 10...Radiation heater 12...Housing 13...Central core portion 14...Combustion chamber 15...Outer peripheral portion 16...Heat exchange chamber 18...Heat exchanger 19...Platform 20 ... Radiation device 22 ... Reflection device 23 ... Fluid pressure actuation installation 1) Structure 38 ... Central axis 44 ... Gas burner 45 ... Fuel pump 47 ... Fuel tank 49 ... Filter 53... First stage nozzle 55... Second stage nozzle 57... Solenoid valve 59... Fuel return conduit 60... Fluid flow path 61... Waveform 68... Baffle partition 70... ...Helical baffle 72 ... Irregular outer surface 76 ... Collector ring 78 ... Discharge ring 92.102 ... Coil 94 ... Air blower 1oO ... Manual control valve

Claims (11)

[Claims] (1) a. a housing; and b. within said housing defining a central axis, having an intake end having an intake opening and a discharge end having a discharge opening and discharging products of combustion along said central axis; c. a heat exchange chamber surrounding the intake end of the combustion chamber; d. a heat exchanger disposed within the heat exchange chamber; e. the combustion chamber. a radiating device for radiating heat radially outwardly from the exhaust end of the combustion chamber, the plurality of fluids being arranged in a plurality of planes including the central axis; flow passages, each said passage having an inlet end communicating with said combustion chamber and an outlet end opening into said heat exchange chamber, whereby products of combustion are directed to an inlet of said passage. a radiant device adapted to enter and flow along into the heat exchange chamber; a radiation heater comprising: a reflector for reflecting the radiation outward; and a radiation heater. 2. The radiation heater according to claim 1, wherein the intake end portion of the combustion chamber gradually increases in size around the central axis from the intake opening toward the discharge opening. (3) The radiation heater according to claim 1 or 2, wherein the discharge end of the combustion chamber gradually decreases in size from the intake end of the combustion chamber toward the discharge opening of the combustion chamber. (4) the radiator is arranged with a large end concentrically disposed about the axis adjacent to the intake end of the combustion chamber and concentrically disposed about the axis forming the exhaust opening; 2. The radiation heater of claim 1, wherein the radiation heater is shaped like a conical shell having a small end that is rounded. (5) A deceleration device is disposed within the flow path, thereby decelerating the flow of exhaust gas from the inlet end to the outlet end to retain heat within the radiator. The radiation heater according to claim 4. 6. The radiation heater of claim 5, wherein said deceleration device includes one or more baffle partitions disposed within said flow path. (7) The radiation heater according to claim 5, further comprising a spiral baffle disposed within the flow path. (8) a, a housing; and b, a combustion chamber located within the housing, defining a central axis, and having an intake end having an intake opening and an exhaust end having an exhaust opening, the combustion chamber extending along the central axis; forming a flow path for combustion products, a portion of the intake end of the combustion chamber increasing in size about the central axis from the intake opening towards the exhaust opening; a combustion chamber, the exhaust end of which is tapered in size from the intake end of the combustion chamber toward the exhaust opening of the combustion chamber; c. the intake end of the combustion chamber; a surrounding heat exchange chamber; d. a heat exchanger disposed within said heat exchange chamber; and e. a large end concentrically disposed about said axis adjacent said intake end of said combustion chamber. and a conical shell shape having a small end disposed concentrically about the axis to form the exhaust opening and radiate heat radially outwardly from the exhaust end of the combustion chamber. a radiator having a plurality of fluid flow passages arranged in a plurality of planes including the central axis, each of the flow passages having an inlet end communicating with the combustion chamber and within the heat exchange chamber; an open outlet end opening for allowing combustion products to enter the inlet of said flow path and flow along said flow path into said heat exchange chamber; a radiator device disposed within a passageway, thereby slowing the flow of exhaust gas from the inlet end to the outlet end to retain heat within the radiator; f. a reflector surrounding the radiator and reflecting heat radiated by the radiator axially outward from the housing. 9. The radiation heater of claim 8, wherein said deceleration device includes one or more baffle partitions disposed within said flow path. (10) The radiation heater according to claim 8, further comprising a spiral baffle disposed within the flow path. (11) a, a housing; and b, a combustion chamber disposed within the housing, defining a central axis, and having an intake end having an intake opening and an exhaust end having an exhaust opening; a portion of the inlet end of the combustion chamber gradually increasing in size from the inlet opening toward the outlet opening about the central axis, forming a flow path for combustion products along the combustion chamber; said combustion chamber, said exhaust end being adapted to gradually decrease in size from said intake end of said combustion chamber toward said exhaust opening of said combustion chamber; c. said intake end of said combustion chamber; a heat exchange chamber surrounding said heat exchange chamber; d. a heat exchanger disposed within said heat exchange chamber; e. a large end disposed adjacent said combustion chamber concentrically about said axis; a radiating device in the form of a conical shell having a small end concentrically arranged around the exhaust opening to radiate heat radially outward from the exhaust end of the combustion chamber; a plurality of fluid flow paths arranged in a plurality of planes including the central axis, each of the flow paths having an inlet end communicating with the combustion chamber and an outlet end opening into the heat exchange chamber; a section, whereby combustion products enter the inlet of the flow path and flow along it into the heat exchange chamber;
One or more baffle partitions and a helical baffle are disposed within the flow path to slow the flow of exhaust gas from the inlet end to the outlet end to transfer heat into the radiator. f. a reflector surrounding the radiating device and reflecting heat radiated by the radiating device axially outwardly from the housing; Radiation heater.