KR900007625Y1 - Improved boiler for car heating system - Google Patents

Abstract

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Description

Improved boiler of heating system for vehicle heating

1 is a longitudinal sectional view illustrating a conventional boiler structure.

Figure 2 is a longitudinal sectional view illustrating the boiler structure of the present invention.

3 is a cross-sectional view taken along line A-A of the air vortexer shown in FIG.

Figure 4 is a perspective view of the heat sink to be fitted to the exhaust port in the boiler structure of the present invention.

* Explanation of symbols for main parts of the drawings

21: combustion chamber 22: blowing chamber

23: exhaust gas circulation passage 24: water circulation passage

26: water jacket 27: exhaust vent

28: gasket 29: heat sink

31: exhaust gas guide plate 32 ': fuel outlet

34: vaporization room 35 ': air distribution hole

37: Guide

The present invention is to improve the boiler's structure, which plays a key role in providing the required heat source in the heating system used for heating the vehicle, to maximize the combustion rate of the fuel while maximizing the combustion heat emitted during combustion. In addition, the present invention relates to an improved boiler of a heating system for a vehicle heating by reducing the weight of the boiler itself by improving the structure of the boiler.

Referring to the boiler structure of a conventional heating system for a vehicle heating that is commonly used according to FIG. 1 as an example, the blower chamber (1) and the combustion chamber (6) formed separately in the blower chamber (1) The combustion chamber 6, in which the rotor 2 and the blowing fan 3 are installed, and the spark plug 4 and the injection nozzle 5 are installed, is formed as a steel sheet, but the front part is opened to form the opening 6 '. The heat exchanger 8 is externally formed so that the exhaust gas circulation path 7 is formed outside the combustion chamber 6, but the spiral water circulation path 9 is formed inside the heat exchanger 8. The blower fan 3, which is rotated as the motor 2 of the blower chamber 1 when blowed, blows air sucked through the inlet 10 into the combustion chamber 6, and supplies fuel supplied by a separate fuel feeder. Is injected into the combustion chamber 6 as the injection nozzle 5 and at the same time the heating coil 4 'of the spark plug 4 ) Is rapidly heated to ignite the fuel mixed with the air, and when combustion starts in the combustion chamber (6), the heat of combustion is exhausted through the opening (6 ') of the combustion chamber in accordance with the flow of intake air continuously blown by the blower fan (3). The exhaust gas is exhausted to the exhaust port 11 through the gas circulation path 7, and in the process, the combustion heat is transferred to the heat exchanger 8, and the combustion heat is circulated along the spiral water circulation path 9 formed in the heat exchanger 8. As it is transferred to the water to be used to obtain the effect of heating by using the water raised to the appropriate temperature for heating, in this operation process, the high-temperature combustion heat generated by the combustion of the fuel injected by the nozzle (5) is blown The heat of combustion by a simple exhaust system (hereinafter referred to as 2PATH system) exhausted through the exhaust gas circulation path 7 through the opening 6 'in the front of the combustion chamber 6 in accordance with the flow of air rapidly blown by the fan 3. this There was a closed end where the high efficiency of combustion heat emitted during the combustion, which is emitted into the atmosphere and not sufficiently transferred to the heat exchanger 8, was exhausted, and the fuel efficiency injected into the combustion chamber was burned. Fuel injected into the combustion chamber 6 by the high temperature in the combustion chamber 6 is instantaneously vaporized, and cold air blown into the combustion chamber 6 by the blowing fan 3 is injected from the injection nozzle 5. As the fuel is directly mixed with the fuel, the temperature of the injection fuel is momentarily lowered, thereby inhibiting the fuel from vaporizing into the polymer state, and the combustion rate is very low because the combustion is performed before the injection fuel is vaporized into the polymer state. It was not possible to expect an adequate combustion efficiency.

In addition, since the temperature of the exhaust gas discharged to the exhaust port 11 is 200 ° C.-300 ° C., the water jacket 12, which is the enclosure of the boiler, has no choice but to form a heavy steel plate. In order to lighten its own weight, it remained as the biggest obstacle. To be more specific, the machinery of other industries is designed to be lightweight and high-strength engineering plastic to reduce the product itself, improve productivity and reduce costs. It was used as a substitute for (ENGINEERING PLASTICS), but it could not be applied to the boiler of the heating system for vehicle heating where the temperature of the exhaust gas emitted to the outside is only 150 ℃ because the heat resistance temperature of engineering plastic is only 150 ℃. (The water jacket forming the enclosure is plastically deformed)

The present invention seals the opening in the front of the combustion chamber and places the inlet of the exhaust gas circulation path at the lower end of the portion where the burner is mounted to solve the conventional problems, and the combustion heat generated during combustion circulates the combustion chamber and exhausts it. The first purpose is to maximize the thermal efficiency by exhausting the exhaust gas through the gas circulation path (hereinafter referred to as 3PATH method) so that high temperature combustion heat is sufficiently transferred to the circulating water by the heat exchanger. The temperature of the exhaust gas emitted to the outside is relatively low as the combustion heat is transferred to the heat exchanger sufficiently, so that the material of the water jacket, which is the enclosure of the boiler, can be replaced by the engineering plastic material, thereby reducing the weight of the boiler itself. To improve productivity and reduce production costs The second purpose is to install the vaporization chamber inside the combustion chamber and install the air swivel in the burner, so that the cold air sucked by the blower fan does not lower the temperature of the vaporization chamber. Has a third purpose to increase the fuel evaporation rate significantly and to increase the combustion efficiency in order to generate the maximum heat of combustion in preparation for the fuel consumption rate at the time of combustion. The above is as follows.

As shown in FIG. 2, an improved boiler structure of the inventive heating system for heating a vehicle is separately formed into a combustion chamber 21 and a blower chamber 22, and the exhaust gas circulation path 23 and the spiral water outside the combustion chamber 21 are formed. The heat exchanger 25 made of aluminum and the water jacket 26 made of ENGINEERING PLASTICS forming the enclosure of the boiler are sequentially installed so that the circulation paths 24 are formed, respectively. Gaskets (GASKET) made of fluorine rubber material having a very low thermal conductivity by forming an exhaust port 27 which is integrally formed with the air 25, and by bending the same space between the exhaust port 27 and the water jacket 26. ) Is inserted into the outer periphery of the exhaust port 27, while the water jacket 26 is fixed while the heat dissipation portion 29 'recessed heat sink 29 so as to effectively dissipate heat of the exhaust port 27, the exhaust port 27 Heat is transferred to the water jacket (26). The water jacket 26 itself is configured to prevent plastic deformation twice, and the combustion chamber 2 'seals one side of the front surface and the circulation passage inlet 23' of the exhaust gas circulation passage 23 is formed at the lower end of the other side. In addition, an exhaust gas guide plate 31 having a light passing hole 31 'installed therein is installed at one end of a conventional burner box 30' installed in the combustion chamber 21 to guide the exhaust gas into the exhaust gas circulation path 23. The exhaust gas carrying the heat of combustion is discharged to the exhaust port 27 by the 3PATH method in which the exhaust gas with the heat of combustion is circulated through the combustion chamber 21 and then exhausted through the exhaust gas circulation path 23 to the exhaust port 27. Install a conventional spark plug 32, burner 30 and the ignition detector 33, the fuel supplied as a separate feeder burner through the fuel outlet hole 32 'of the spark plug 32 Heating system by forming a vaporization chamber 34 in the inner portion of the combustion chamber 21 introduced into the combustion chamber 30 " The fuel supplied by the combustion heat when the liquid fuel introduced during operation of the gas is momentarily heated (about 1200 ° C.) by the instantaneous heating of the exothermic coil 32-1 and ignited by the burner 30 and then continuously burned. Is made to evaporate to a polymer state to maximize the combustion efficiency, and in the burner combustion chamber (30 ″) to be distributed with the blowing chamber (22), as shown in FIG. A plurality of obliquely installed inclined air cylinders are arranged so that the air is blown into the combustion chamber 21 in a vortex state while the intake air passes through, and one side of the front face of the shield plate 36 is fitted with the blower air to the combustion chamber. It is configured not to blow directly to the (21), but is formed so that the ventilation hole (36 ') maintaining a proper gap, the guide piece 37 in the upper end of the air vortex 35, that is, the position where the vaporization chamber 34 is located ) Through the air distribution hole (35 ') Improvement of vehicle heating heating system, characterized in that the cold air in the vortex state is prevented from being blown to the vaporization chamber 34 so that the vaporization chamber 34 by the cold air does not lower the vaporization rate of the fuel due to the low temperature. As a boiler, reference numeral 38 denotes a filtering network attached on the inner surface of the burner enclosure 30 ', 39 is a driving motor, 40 is a blowing fan, 41 is a circulating water inlet, 42 is a circulating water outlet, and 25' is a heat transfer. Pin 43 is the temperature sensor.

The operation and effect of the present invention having such a configuration will be described in detail. When the heating system for heating the vehicle equipped with the improved boiler of the present invention is operated, the fuel transferred by the separate fuel transfer device is discharged from the fuel outlet hole 32 of the spark plug 32. ') Is instantaneously vaporized by the thermal radiation coil 32 "of the spark plug 32, and the vaporized fuel is dispersed into the vaporization chamber 34 and the burner combustion chamber 30" inside the combustion chamber 21. As the supply is ignited, incomplete combustion occurs, and the air blown by the blowing fan 40 rotated as the driving motor 39 of the blowing chamber 22 is an air distribution hole 35 'of the air vortexer 35. When the air is blown into the burner combustion chamber (30 ") and mixed with the vaporized fuel in an incomplete combustion state when the complete combustion is started, the temperature in the combustion chamber (21) rapidly rises, thereby shutting off the power of the spark plug (32). And based on the heat of combustion in the combustion chamber 21 Combustion takes place in this manner. In this process, the fuel supplied to the vaporization chamber 34 installed inside the burner combustion chamber 30 ″ is burned close to the complete combustion as it is vaporized into a polymer state by the high temperature in the combustion chamber 21. The combustion efficiency is maximized, and with the guide piece 37 provided between the air vortexer 35 and the vaporization chamber 34, the cold air in the vortex state does not lower the temperature of the vaporization chamber 34. Combustion is performed by directly blowing to the combustion chamber 21, and the high temperature combustion heat generated by the continuous combustion is exhausted after circulating the combustion chamber 21 in accordance with the flow of high pressure air blown by the blower fan 40. Most of the heat of combustion is transferred to the heat exchanger 25 and discharged to the heat exchanger 25 in the process of being exhausted by the 3PATH method, which is exhausted through the gas circulation path 23 to the exhaust port 27, thereby maximizing the utilization effect of the heat of combustion, and thus the exhaust port ( 27) The temperature of the exhaust gas discharged significantly decreases and the water jacket 26, which forms the boiler enclosure, is replaced with engineering plastic material having a heat resistance temperature of 150 ° C. or lower. Subsequently, the closed end that did not use the maximum amount of combustion heat was improved so that the exhaust system was exhausted in the 3PATH method so that the combustion heat at the time of combustion was maximized for vehicle heating, and the vaporization chamber 34 was burned in the burner combustion chamber 30 ". The fuel supplied by the high temperature combustion heat generated in the combustion chamber 21 is vaporized in a polymer state and then burned to obtain the maximum combustion efficiency compared to the consumed fuel, thereby saving fuel. As the temperature of the exhaust gas exhausted by the furnace is lowered, the heat resistance temperature is only 150 ℃, but high strength and lightweight engineering plastic By weight of the weight-rescue by forming a water jacket (26) forming the outer enclosure of the boiler boiler itself, of course, that will improve the productivity and lowering the production cost it is very economical and practical excellent useful devised.

Claims (3)

Separately formed into the combustion chamber 21 and the blower chamber 22, the drive motor 39 and the blower fan 40 are built into the blower chamber 22, and the burner 30 and the air are in the combustion chamber 21, respectively. The vortexer 35, the spark plug 32, and the ignition detector 33 are installed inside the heat exchanger 25 so that the exhaust gas circulation path 23 and the spiral water circulation path 24 are respectively formed outside the combustion chamber 21. In the conventional boiler structure in which the water jacket 26 and the water jacket 26 are sequentially installed, one side of the front surface of the combustion chamber 21 is sealed and a circulation path inlet 23 ′ of the exhaust gas circulation path 23 is formed at the lower end of the other side. 21, an exhaust gas guide plate 31 is installed at one end of the burner enclosure 30 'provided so that the burner combustion chamber 30 " is formed in the burner chamber 30, and the exhaust port 27 is moved outward from the central portion of one side of the heat exchanger 25. By extending the formation, the exhaust gas with the heat of combustion is exhausted in the 3PATH method to maximize the thermal efficiency, and the exhaust gas temperature at the time of external discharge An improved boiler for a heating system for a vehicle heating, which is made by replacing the water jacket (26) with engineering plastic material by making it at the minimum. The combustion chamber according to claim 1, wherein the vaporization chamber 34 is formed inside the burner combustion chamber 30 "and the guide piece 37 is installed at the lower end thereof so that the fuel supplied during operation is vaporized in a polymer state to maximize combustion. Improved boiler for heating system for vehicle heating to obtain efficiency. The heat dissipation plate 29 in which a plurality of heat dissipation portions 29 'are provided on the outer circumference of the exhaust port 27 is mounted so that the water jacket 26 is not plastically deformed by the extension of the exhaust port 27. Boiler of heating system for heating heating.