WO2001066998A1 - Device and method for vaporized gas premixed combustion - Google Patents

Abstract

A device and a method for feeding petroleum-base fuel and water separately to a hot chamber and vaporizing and combusting them, the method comprising the steps of increasing the temperature of the hot chamber (10) having a combustion nozzle (16) to a temperature equal to or higher than the boiling point of kerosene using a heater (12), feeding kerosene and water separately to the heated hot chamber (10) through pipes (26 and 28), respectively, and air is blown into the hot chamber (10) using an air blower (34), whereby kerosene and water vaporized by heat from the hot chamber (10) and air are exhausted from a plurality of holes (16K) in the nozzle (16), and ignited by a high tension current transformer (18) and an igniting electrode (20).

Description

 Vaporized gas mixed combustion apparatus and method

TECHNICAL FIELD The present invention relates to a combustion apparatus and a combustion method, and more particularly, to a petroleum-based fuel, water, and water.

The present invention relates to a combustion apparatus and a combustion method for mixing and burning.

 Field background technology

 The method of burning by mixing a petroleum fuel and water can be classified into two methods: a method using a medium such as a surfactant and a method not using a surfactant. In the former method, a surfactant is added to petroleum-based fuel and water to mix the petroleum-based fuel and water, which are originally difficult to mix, with each other, and the agitated emulsion fuel is burned.

As a method of burning petroleum fuel and water without using a surfactant, Japanese Patent Laid-Open No. 6-42734 discloses a method of injecting and stirring liquid fuel and water toward a mixing and stirring chamber by an injection valve. The production and combustion of an emulsion that performs emulsification and ionization are disclosed. Japanese Patent Application Laid-Open No. HEI 3-148506 discloses a kerosene in a combustor that burns by mixing kerosene or the like with water. There is disclosed a technology in which water and water are vaporized through respective vaporization pipes, and further, the vaporized kerosene and water are mixed by being injected from injection nozzles, respectively, and guided to a hot plate for combustion. However, the equipment used for emulsifying petroleum fuel and water using surfactants is expensive. Also, in the method without using a surfactant, vaporization Equipment for mixing kerosene and water and equipment for combustion are required, and the equipment becomes complicated.

 The present invention has been made in view of the above-described circumstances, and has as its object to provide a combustion apparatus and a combustion method that can mix and burn petroleum-based fuel and water with a simple configuration. Disclosure of the invention

In order to achieve the above object, the present invention provides an apparatus and a method for separately supplying a petroleum-based fuel and water to a high-temperature chamber for vaporization and combustion. The heating means of the combustion device of the present invention heats the high-temperature chamber so as to have a temperature higher than the boiling point of the petroleum-based fuel, and the supply means heats the petroleum-based fuel and water to a temperature higher than the boiling point of the petroleum-based fuel. Supply to the room. The heating means has an opening, is heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel, and has a heating chamber to which air and petroleum-based fuel are supplied, and burns the vaporized gas ejected from the opening. Thus, the heating means may heat the high-temperature chamber to a temperature equal to or higher than the boiling point of the petroleum-based fuel. The high-temperature chamber is heated to a temperature equal to or higher than the boiling point of petroleum-based fuel, and since the boiling point of water is sufficiently lower than the boiling point of petroleum-based fuel, the petroleum-based fuel and water each become vaporized gas and mix. Further, air is supplied to a high-temperature chamber heated to a temperature higher than the boiling point of petroleum-based fuel by using a supply means for supplying air. The mixed gas of petroleum-based fuel and water vaporized gas and air is ejected from an opening provided in the high-temperature chamber, and is ignited by, for example, ignition means provided near the opening. The flame caused by the combustion of the vaporized gas ejected from the opening of the heating chamber of the heating means may be caused to eject the mixed gas from the opening provided in the high-temperature chamber and burn. During the continuation of the combustion, detection means for detecting the temperature of the high-temperature chamber Based on the temperature detected by the control unit, the control unit controls the heating unit so that the high-temperature chamber has a temperature equal to or higher than the boiling point of the petroleum-based fuel. As a result, the high temperature chamber is maintained at a temperature (set temperature) higher than the boiling point of the petroleum fuel.

 As described above, in the present invention, since it is not necessary to mix a petroleum-based fuel and water in advance, a surfactant and an apparatus for emulsifying are unnecessary, and it is useful that the method can be performed at low cost. Further, since it is not necessary to vaporize each of the petroleum-based fuel and water separately, the combustion of the present invention can be achieved by simply making a simple change to a part of a commercially available heating stove for burning kerosene vaporized gas. It is useful in that it does not require a high-temperature chamber for each and a device for further supplying each vaporized gas, as in the case of separately vaporizing each of the petroleum-based fuel and water. . Further, in the combustion of the present invention, it is possible to reduce NO X and CO 2 of exhaust gas, and it is an advantage of suppressing a decrease in humidity that occurs during general combustion.

 In another aspect of the present invention, a vaporized gas mixed combustion device comprises: a first high temperature chamber having an opening; a second high temperature chamber having an opening corresponding to the opening; and a second high temperature chamber A heating means for heating to a temperature equal to or higher than the boiling point of the system fuel; and a supply means for supplying water to the first high temperature chamber and supplying petroleum fuel and air to the first and second high temperature chambers.

 The vaporized gas mixed combustion method of the present invention comprises a first step of setting a high temperature chamber having an opening to a temperature equal to or higher than the boiling point of petroleum-based fuel, and separately heating the petroleum-based fuel, water, and air by heating means. A second step of supplying a high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel.

Further, the vaporized gas mixed combustion method of the present invention comprises: a third step of supplying the petroleum-based fuel to the high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel; The method may include a fourth step of igniting the petroleum-based fuel vaporized by the step, and after the fourth step, the second step may be performed. Ignition efficiency can be increased by igniting the gaseous gas of petroleum-based fuel before performing the mixed gas combustion.

 Further, in the vaporized gas mixed combustion method of the present invention, when stopping the combustion, after the second step, the fifth step of stopping the supply of water to the high-temperature chamber, and after the fifth step, moving to the high-temperature chamber The sixth step of stopping the supply of the petroleum fuel may stop the vaporized gas mixed combustion. This method of stopping combustion reduces the amount of liquefied matter remaining in the high-temperature room and prevents abnormalities from occurring during reburning.

 In the present invention, tap water or reduced water may be used as water for the effect of increasing the combustion temperature, or the water may contain methanol in an amount of several percent of water. . BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is a schematic diagram showing a configuration of a combustion device according to a first embodiment of the present invention.

 FIG. 2 is a block diagram illustrating a configuration of a control system that controls the combustion device according to the first embodiment of the present invention.

 FIG. 3 is a flowchart for explaining the operation of the combustion device according to the first embodiment of the present invention.

 FIG. 4 is a schematic diagram illustrating a configuration of a combustion device according to a second embodiment of the present invention.

FIG. 5 shows a configuration of a control system for controlling a combustion device according to the second embodiment of the present invention. FIG.

 FIG. 6 is a flowchart illustrating the operation of the combustion device according to the second embodiment of the present invention.

 FIG. 7 is a schematic diagram illustrating a configuration of a boiler that is a modification of the second embodiment of the present invention.

 FIG. 8 is a cross-sectional view of a diesel engine according to a modification of the embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, embodiments of the present invention will be described.

FIG. 1 shows a configuration of a vaporized gas mixed combustion apparatus according to a first embodiment of the present invention. In this embodiment, kerosene is used as a petroleum fuel. This combustion device has a cylindrical high-temperature chamber 10 for vaporizing kerosene and water. The high temperature chamber 10 is provided with a heater 12 as a heating means for supplying heat in order to make the temperature in the high temperature chamber 10 higher than the boiling point of the petroleum fuel. A gas guide plate 14 for uniformly supplying the mixed fuel vaporized gas to the entire fuel nozzle 16 is disposed above the high-temperature chamber 10 so as to cover the inner upper surface of the high-temperature chamber 10. Further, the combustion nozzle 16 is provided with a number of holes 16 K for ejecting the mixed fuel vaporized gas for combustion toward the outside of the high temperature chamber 10. At a position close to the combustion nozzle 16 outside the high temperature chamber 10, there is an ignition electrode as an ignition means connected to a high-voltage current transformer 18 for igniting the mixed fuel vaporized gas ejected from the combustion nozzle 16. Bar 20 is arranged. Outside the high-temperature chamber 10, a kerosene tank 22 and a water tank 24 for storing kerosene and water (tap water) supplied to the high-temperature chamber 10 are arranged. ing. The kerosene tank 22, the water tank 24 and the high-temperature chamber 10 are connected by a kerosene pipe 26 and a water pipe 28 to transport kerosene and water. The kerosene pipe 26 and the water pipe 28 penetrate the high-temperature chamber 10 side and extend into the high-temperature chamber 10. A kerosene pump 30 and a water pump 32 which are power sources for transporting kerosene and water are attached to the kerosene pipe 26 and the water pipe 28, respectively. The kerosene pipe 26, water pipe 28, kerosene pump 30 and water pump 32 constitute the first supply means of the present invention. Similarly, a blower 34 as a second supply unit for blowing air into the high-temperature chamber 10 is disposed outside the high-temperature chamber 10. It is desirable that the blower pipe of the blower 34 penetrate the side of the high-temperature chamber 10 and extend to near the ends of the kerosene pipe 26 and the water pipe 24 in the high-temperature chamber. In the high-temperature chamber 10, a sensor 36 as a detecting means for detecting the temperature in the high-temperature chamber 10 is arranged.

 Next, FIG. 2 shows a control system of the combustion device for mixed fuel according to the first embodiment of the present invention. The control system includes a control system 310 as a control means having CPU 300, ROM 302, RAM 304 and an input / output interface 308. The control system 310 may be a general-purpose computer or a special-purpose computer. The control system 310 is connected via the input / output interface 308 to the main switch 340 of the combustion switch, heater 1-2, high-voltage current transformer 18, kerosene pump 30 and water pump 3 2. A blower 34, a sensor 36, and an external memory 303 for storing various data during combustion are connected.

 The operation of the mixed fuel combustion device according to the first embodiment of the present invention will be described with reference to the flowchart shown in FIG.

To start combustion, the operator turns on main switch 340. You. As a result, in step 502, the judgment of whether or not the main switch 340 was turned on is affirmative ^ ¹ ', and the temperature in the high temperature chamber 10 is set to a temperature higher than the boiling point of kerosene (set temperature). In step 504, the heater 112 is operated to heat the heater, and in step 506, the temperature in the high-temperature chamber 10 reaches the set temperature based on the temperature detected by the sensor 36. It is determined whether or not it has been done. If it is determined that the temperature in the high-temperature chamber 10 has reached the set temperature, in step 508, the blower 34 is operated to blow air to the high-temperature chamber 10 through the air pipe as primary combustion air. . In step 510, sparking by the ignition electrode rod 20 coupled to the high voltage current transformer 18 is started. In step 5 12, the kerosene pump 30 is operated to start supplying kerosene into the high-temperature chamber 10 through the kerosene pipe 26. Since the temperature of the kerosene supplied to the high-temperature chamber 10 is sufficiently higher than the boiling point of the kerosene, the kerosene is vaporized into a high-temperature gas. The blown air and the vaporized high-temperature gas are mixed, and the mixed gas is uniformly guided to the combustion nozzle 16 by the guide plate 14. The mixed gas is ejected from a number of holes 16 K of the combustion nozzle 16. Due to the spark, the jetted gas is ignited, and the combustion power is reduced. When the combustion power is reduced, in step 514, the spark is stopped. Until the predetermined time elapses in step 516, the burning of the vaporized gas using only kerosene is continued. Water is not supplied at first because it is easier to ignite using vaporized gas containing only kerosene.

After a predetermined time has elapsed, in step 5 18, the operation of the water pump 32 is started. As a result, water is supplied to the high-temperature chamber 10 through the water pipe 28, but since the boiling point of water is lower than the boiling point of kerosene, it becomes heated steam. During this time, the heater 112 is controlled using the temperature detected by the sensor 36 so that the high-temperature room is kept constant. In the high-temperature room 10, kerosene vaporization gas, water heating steam, and The air is mixed, and the guide plate 14 heats the vaporized gas of kerosene and water as well as the mixed gas of vaporized gas of kerosene and air, and the mixed gas of air and air is guided to the combustion nozzle 16. The mixed gas ejected from the combustion nozzle 16 is burned by the combustion of the mixed gas of kerosene vaporized gas and air. Since the combustion device in the present embodiment is of the open burner type, the air for secondary combustion is supplied appropriately from the surroundings of the combustion and the combustion is continued.

 In order to stop the combustion, the main switch 304 not shown in FIG. 1 is turned off. When it is detected in step 520 that the main switch has become OFF, in step 522, the operation of the water pump 32 is stopped, and the supply of water to the high-temperature chamber 10 is stopped. Next, after a predetermined time has elapsed, in step 526, the operation of the kerosene pump 30 is stopped, supply of kerosene to the high-temperature chamber 10 is stopped, and in step 530, the heater 12 Is stopped. Further, after a predetermined time has elapsed, the blower 34 is stopped. By performing the operation in such a stop sequence, the vaporized gas is prevented from remaining liquefied in the high temperature chamber 10.

In the above description, the combustion of the combustion device using the control system is described. However, instead of the control system, a human may perform the control manually. In the above, kerosene was used as a petroleum-based fuel, but the type of fuel is not limited as long as it is liquid and can be vaporized, but if the type of fuel is changed, the temperature of the high-temperature chamber will be reduced. Settings need to be changed. Instead of water (tap water), reduced water or a mixture of water and methanol in an amount of several percent of water may be used. As described above, in the present embodiment, kerosene and water are separately supplied in a liquid state to a high-temperature chamber, and vaporized and mixed in the high-temperature chamber, whereby an easy method, inexpensive, and efficient. Combustion can be performed. In addition, NO x in exhaust gas and And C〇2, saving petroleum fuel. In the present invention, kerosene and water vaporized gas mixed combustion can save about 17% of kerosene in an experiment in comparison with vaporized gas combustion of kerosene alone.

 FIG. 4 shows the configuration of a device for burning a vaporized gas mixed fuel according to a second embodiment of the present invention. In this combustion apparatus, the high-temperature chamber in the first embodiment is separated into two places, and a main high-temperature chamber 106 as a first high-temperature chamber and an ignition high-temperature chamber 100 as a second high-temperature chamber are separated. Have. The high temperature chamber 106 is arranged near the combustion nozzle 134, and a temperature adjusting plate 144 is arranged between the high temperature chamber 106 and the combustion nozzle 134. For this reason, the main high-temperature chamber 106 can be heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel by the heat generated by the combustion by the fuel vaporized gas ejected from the combustion nozzle 1334 as described later.

 In the high temperature chamber for ignition 100, a heater 102 for supplying heat so as to make the temperature in the high temperature chamber for ignition 100 higher than the boiling point of the petroleum fuel is arranged. The main high-temperature chamber 106 and the ignition high-temperature chamber 100 are respectively provided with a combustion nozzle 1 as an opening by a main combustion vaporization gas guide tube 132 and an ignition combustion vaporization gas guide tube 130.

Connected to 3 4 Further, the combustion nozzle 1334 is provided with a number of holes 134K for ejecting fuel vaporized gas for combustion. At a position close to the combustion nozzle 13 4, there is an ignition electrode 1 as an ignition means connected to a high-voltage current transformer 14 2 for igniting the fuel vaporized gas ejected from the combustion nozzle 13 4.

4 2 are arranged.

Outside the ignition high-temperature chamber 100 and the main high-temperature chamber 106, a kerosene tank and a water tank (not shown) for storing kerosene and water, respectively, are arranged. A fuel supply pipe 144 for supplying kerosene is connected to the kerosene tank. Fuel supply pipes 1 4 4 The fuel supply pipe 1 14 for the main combustion and the fuel supply pipe 110 for the ignition are branched. The main combustion fuel supply pipe 114 extends into the main combustion high temperature chamber 106, and the ignition fuel supply pipe extends into the ignition high temperature chamber 100. A main combustion water supply pipe 1 16 for supplying water extends into the main high temperature chamber 106. A fuel pump 120 and a water pump 122 serving as power sources for supplying kerosene and water are attached to the fuel supply pipe 144 and the main combustion water supply pipe 116, respectively.

 A fuel switching valve for ignition and combustion, and a fuel switching valve for main combustion are mounted on the ignition fuel supply pipe and the main combustion fuel supply pipe. Have been. Similarly, outside the ignition high temperature chamber 100 and the main high temperature chamber 106, a blower 128 for blowing air to the ignition high temperature chamber 100 and the main high temperature chamber 106 is arranged. A blower tube 1 13 is connected to the blower 1 2 8. The blower tube 113 branches into an ignition combustion blower tube 112 and a main combustion blower tube 118. The blast tube 1 1 2 for ignition and combustion extends to the high temperature chamber 100 for ignition, and the blast tube 1 1 8 for main combustion extends to the main high temperature room 106.

 In order to adjust the air volume, the ignition air volume adjustment tamper 1 3 8 and the main combustion air volume adjustment tamper 1 1 3 Is attached.

 The ignition high temperature chamber 100 is provided with a temperature sensor 104 for detecting the temperature in the ignition high temperature chamber 100. Further, a temperature sensor 108 is disposed in the main high-temperature chamber 106 as a detecting means for detecting the temperature in the main high-temperature chamber 106.

Next, FIG. 5 shows a control system of a combustion device for a vaporized gas mixed fuel according to a second embodiment. Control system is CPU 300, ROM 302, RAM 304 and I / O A control system 310 having an interface 308 is provided. The control system 310 may be a general-purpose computer or a special-purpose computer. The control system 310 is connected via an input / output interface 308 to the main combustion switch 340, heater 102, high-voltage current transformer 144, kerosene pump 120, water Pump 1 2 2, blower 1 2 8, ignition high temperature chamber 100 sensor 100 4, fuel switching valve 1 2 4, air volume adjustment tamper 1 3 8, main high temperature chamber 106 sensor 1 0 8. Fuel switching valve 126, air volume adjusting tamper 136, and external memory 306 for storing various data during combustion are connected.

 The operation of the mixed fuel combustion device according to the second embodiment will be described with reference to the flowchart shown in FIG.

To start combustion, the operator turns on main switch 340. From this, the determination of whether or not the main switch 340 was turned ON in step 602 is affirmed, and the temperature in the ignition high-temperature chamber 100 is set to a value higher than the boiling point of kerosene (set temperature). In step 604, the heater 102 is operated to heat the heater, and in step 606, based on the value detected by the sensor 104, the temperature in the ignition high temperature chamber 100 is increased. If it is determined that the temperature has reached the set temperature and the temperature in the ignition high-temperature chamber 100 has reached the set temperature, in step 608, the blower 1 28 is actuated, and the blower 1 Air is blown. In step 61, the air force blown from the blower 128 is controlled by the air volume adjusting tampers 138 and 136. As a result, the primary combustion air is blown into the ignition high-temperature chamber 100. In step 6 12, the kerosene pump 120 is operated. In step 6 14, the high-voltage current transformer 142 connected to the ignition electrode rod 140 is operated to start sparking. Then, the fuel switching valve 124 is operated at the time 616 to start supplying kerosene to the high-temperature chamber 100 for ignition. The supplied kerosene becomes a vaporized gas by the heat of the ignition high-temperature chamber 100, and is ejected from a number of holes 134 K provided in the combustion nozzle 134. The gas ejected from the many holes 134 K provided in the combustion nozzle 134 is ignited by a spark. After ignition, in step 618, the high-voltage flow transformer is stopped, and the spark ends. Since the combustion nozzle 134 is disposed near the main high-temperature chamber 106, the main high-temperature chamber 106 is heated by the heat generated by the combustion after the ignition.

 In step 62, based on the value detected by the sensor 108 provided in the main high-temperature chamber 106, the temperature in the main high-temperature chamber 106 becomes a value (set temperature) higher than the boiling point of kerosene. If it is determined that the temperature has reached, in step 62, the fuel switching valve 126 is actuated, and the kerosene power is supplied to the main high-temperature chamber 106. Further, in step 624, the water pump is operated to supply water to the main high temperature chamber 106. Kerosene and water supplied to the main high-temperature chamber 106 become vaporized gas by the heat of the main high-temperature chamber 106 and are mixed. Adjustment of the air force blown by the blower 128 The primary combustion air is blown into the main high-temperature chamber 106 controlled by the tampers 13 and 13.

The vaporized gas of kerosene and water and the air blown from the blower pipe 1 18 were mixed and guided to the combustion nozzle 13 4 by the vaporized gas guide pipe 13 2, and provided to the combustion nozzle 13 4 It is ejected from a large number of holes 134K, and is burned by burning a gas mixture of kerosene gas and air from a high temperature chamber 100 for ignition. In step 628, the fuel switching valve 124 is stopped, in step 630 the heater is stopped, and in step 632, the air blown by the blower 128 is adjusted by the air volume adjustment valve. The supply of the mixed gas to the combustion nozzles 134 in the high-temperature chamber for ignition 100 is stopped by the control of the compressors 1338 and 1336, and the main combustion is continued.

 If it is detected in step 634 that the main switch has turned to 〇FF, in step 6336, the operation of the water pump 122 is stopped, and the water is supplied to the main high-temperature chamber 106. Stops. Next, after a predetermined time has elapsed, in step 60, the operation of the kerosene pump 120 is stopped, and the supply of kerosene to the main high-temperature chamber 106 is stopped. Further, after a predetermined time has elapsed, in step 646, the blower 128 is stopped to stop the primary combustion air from being blown into the main high-temperature chamber 106. By performing the operation in such a stop sequence, the vaporized gas is prevented from liquefied and remaining in the high temperature chamber 106.

 In order to heat the main high-temperature chamber 106 to a temperature higher than the boiling point of the petroleum fuel, the above-mentioned combustion is performed by separating the ignition high-temperature chamber 100 and the main combustion high-temperature chamber 106. The main combustion high temperature chamber 106 can save heat source energy to make the temperature high, and the running cost is reduced.

In the above description, the combustion of the combustion device using the control system is described. However, instead of the control system, a human may perform the control manually. In the above, kerosene was used as a petroleum-based fuel, but the type of fuel is not limited as long as it is liquid and can be vaporized, but if the type of fuel is changed, the temperature of the high-temperature chamber will be reduced. Settings need to be changed. Instead of water (tap water), reduced water or a mixture of water and methanol in an amount of several percent of water may be used. As described above, in the present embodiment, kerosene and water are separately supplied in a liquid state to a high-temperature chamber, and vaporized and mixed in the high-temperature chamber, whereby an easy method, inexpensive, and efficient. Combustion can be performed. In addition, NO x in exhaust gas and And reduce CO 2 and save petroleum fuel. Heating of the ignition high-temperature chamber 100 by the heater 102 is necessary only at the start of combustion, and after the start of combustion, the heat of combustion in the combustion device can be used to heat the main high-temperature chamber 106. . This will significantly reduce the cost of heating the hot room.

 Further, in another embodiment of the present invention, as shown in FIG. 7, the apparatus for burning a mixed gas of the present invention can be used in a boiler requiring high-temperature combustion. This configuration of the boiler is a modification of the second embodiment. When used in a boiler, it is preferred that the secondary combustion air be forced to blow residual heat air to improve thermal efficiency.

 In FIG. 7, reference numeral 702 denotes a main combustion high-temperature chamber, reference numeral 704 denotes a combustion high-temperature chamber for ignition, reference numeral 706 denotes a high-temperature chamber temperature adjusting plate, reference numeral 708 denotes an electric heater, and reference numeral 710 denotes an ignition electrode. , Ί 1 2 is a combustion nozzle, 7 1 4 is a mixed gas pipe, 7 16 is a fuel pipe, 7 18 is a water nozzle, 7 2 0 is a fuel automatic adjustment valve, 7 2 2 is a fuel pump, 7 2 4 Is a water pump, 728 is a primary combustion air blower tube, 730 is a tamper for automatically adjusting the air flow, 732 is a air user for air swirling, 736 is a primary combustion air blower, 738 is a secondary blower Combustion air blower, 740 is a combustion cylinder, 740 is a combustion cylinder, 744 is a gas swirling blade, 750 is a combustion chamber, 750 is a preheating chamber, 754 is a flue, 756 is a smoke pipe, 758 is an exhaust port, and 770 is connected to a fuel tank, and 772 is connected to a water tank.

 Further, in another embodiment of the present invention, as shown in FIG. 8, the mixed gas combustion device of the present invention can be used for a diesel engine used for an automobile, a ship, or the like.

In FIG. 8, reference numeral 802 denotes an intake pipe, and reference numeral 804 denotes an intake valve (the rear side has an exhaust valve). Valve), 806 is a suction and exhaust cam and shaft, 808 is a glow plug, 812 is an electronically controlled fuel injection nozzle, 816 is an electronically controlled water injection nozzle, 816 is an electronically controlled water Injection nozzle, 8 18 is an exhaust pipe, 8 20 is a pre-combustion chamber, 8 2 2 is a piston, 8 2 is a cylinder, 8 3 0 is connected to a high pressure fuel pump, 8 3 2 is a high pressure Connected to water pump.

 The petroleum fuel is not limited to kerosene, and light oil, heavy oil, and the like may be used. As described above, according to the present invention, the petroleum-based fuel and water are supplied in a liquid state to a high-temperature chamber heated above the boiling point of the petroleum-based fuel, and vaporization and mixing are performed in the high-temperature chamber. In this way, inexpensive and efficient combustion can be achieved. In addition, it reduces NO x and CO 2 in the exhaust gas, saving petroleum fuel.

Claims

The scope of the claims  1. A heating means for heating the temperature of the high-temperature chamber having the opening to a temperature equal to or higher than the boiling point of the petroleum-based fuel;  Supply means for separately supplying petroleum-based fuel and water and supplying air to the high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel by the heating means;  A vaporized gas mixed combustion device having:  2. The air and the petroleum-based fuel are first supplied to the high-temperature chamber, and after the vaporized gas ejected from the opening is burned, the petroleum-based fuel, the water, and the air are heated to the high temperature. 2. The vaporized gas mixed combustion apparatus according to claim 1, further comprising control means for controlling the supply means so as to be supplied to the chamber.  3. a first hot chamber having an opening;  A second hot chamber having an opening corresponding to the opening;  Heating means for heating the second high-temperature chamber to a temperature equal to or higher than the boiling point of the petroleum-based fuel; and supplying air and the petroleum-based fuel and water separately to the first high-temperature chamber; and A supply means for supplying the petroleum-based fuel and the air to the high-temperature chamber of:  The first high-temperature chamber is heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel by burning the vaporized gas ejected from the opening of the second high-temperature chamber. A vaporized gas mixed combustion apparatus characterized in that a vaporized gas ejected from an opening is burned by the combustion of the vaporized gas from the second high temperature chamber. 4. The vaporized gas mixed combustion device according to any one of claims 1 to 3, wherein the water is tap water or reduced water, or the tap water contains methanol. 5. A first step of raising the temperature of the high temperature chamber having an opening to a temperature equal to or higher than the boiling point of the petroleum fuel,  A second step of separately supplying the petroleum-based fuel, the water, and the air to the high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel by the heating unit. . 6. a third step of supplying the petroleum-based fuel to the high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel;  A fourth step of igniting the petroleum fuel vaporized by the third step;  Further having  The vaporized gas mixed combustion method according to claim 5, wherein the second step is performed after the fourth step.  7. A fifth step of stopping the supply of the water to the high temperature chamber after the second step;  After the fifth step, stopping the supply of the petroleum-based fuel to the high-temperature chamber, a sixth step;  The vaporized gas mixed combustion method according to claim 5 or 6, further comprising: 8. The vaporized gas mixed combustion according to any one of claims 5 to 7, wherein the water is tap water or reduced water, or the tap water contains methanol. Method. AMENDED CLAIMS  [received by the International Bureau on 18 May 2000 (18.05.00);  original claims 1-3 and 5-7 amended; remaining claims unchanged (2 pages)] 1. (after correction) heating means for heating the temperature of the vaporized mixing high-temperature chamber having the opening to a temperature equal to or higher than the boiling point of the petroleum-based fuel;  The petroleum-based fuel and water are separated from different positions so that the petroleum-based fuel and water are simultaneously vaporized and mixed into the vaporization-mixing high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel by the heating means. Supply means for supplying air and supplying air;  A vaporized gas mixed combustion device having:  2. After the correction, the air and the petroleum-based fuel are first supplied to the vaporization-mixed high-temperature chamber, and after the vaporized gas ejected from the opening is burned, the petroleum-based fuel and the water 2. The vaporized gas mixed combustion apparatus according to claim 1, further comprising control means for controlling the supply means so that the air is supplied to the vaporized mixed high temperature chamber.  3. (after correction) a first vaporized mixing high temperature chamber with an opening;  A second vaporization / mixing high temperature chamber having an opening corresponding to the opening, heating means for heating the second vaporization / mixing high temperature chamber to a temperature equal to or higher than the boiling point of the petroleum-based fuel,  Supplying air while supplying the petroleum fuel and water separately to the first vaporized mixed high temperature chamber, and supplying the petroleum fuel and the air to the second vaporized mixed high temperature chamber Means,  A vaporized gas mixed combustion device having  The first vaporized mixed high-temperature chamber is heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel by burning the vaporized gas ejected from the opening of the second vaporized mixed high-temperature chamber. A vaporized gas mixed combustion device characterized in that the vaporized gas ejected from the opening of the mixed high temperature chamber is burned by the combustion of the vaporized gas from the second vaporized mixed high temperature chamber.  4. The water according to any one of claims 1 to 3, wherein the water is tap water or reduced water, or the tap water contains metal.  1 8 Amended paper (Article 19 of the Convention) 5. (after correction) a first step of bringing the vaporized mixed high temperature chamber with the opening to a temperature above the boiling point of the petroleum fuel;  The petroleum-based fuel and water are separately separated so that the petroleum-based fuel and water are simultaneously vaporized and mixed into the vaporization-mixing high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel by the heating means. A second step of supplying air from the location to the evaporative mixing hot chamber and supplying air;  And a method for mixed combustion of vaporized gas.  6. (after correction) a third step of supplying the petroleum-based fuel to the vaporized and mixed high-temperature chamber heated to a temperature equal to or higher than the boiling point of the petroleum-based fuel;  A fourth step of igniting the petroleum-based fuel vaporized by the third step;  Further having  The method according to claim 5, wherein the second step is performed after the fourth step.  7. (After the correction) After the second step, a fifth step of stopping the supply of the water to the vaporized and mixed high-temperature chamber;  After the fifth step, a sixth step of stopping the supply of the petroleum-based fuel to the vaporized mixing high temperature chamber;  The vaporized gas mixed combustion method according to claim 5 or 6, further comprising: 8. The vaporized gas mixture according to any one of claims 5 to 7, wherein the water is tap water or reduced water, or the tap water contains methanol. Burning method. 1 9 Amended paper (Article 19 of the Convention)