JPS6311143Y2 - - Google Patents

Description

[Detailed description of the invention] This invention uses liquid fuel and water as raw materials at home to cause steam re-forming, easily extracts fuel gas, and produces a relatively small liquid that can be used in various gas combustion appliances. This relates to a fuel gasification converter, and aims to be able to sufficiently cope with sudden changes in the amount of gas used, and to reduce the number of times the gasification converter operates and stops.

Traditionally, the energy used in homes comes from a variety of sources, including electricity, gas (including city gas and propane gas), and oil. Of these, electricity is by far the cleanest and easiest to use, but it is expensive to use as heat energy because it is highly processable. Generally speaking, gas fuel is the next cleanest and easiest to use fuel, but it is also more expensive than petroleum fuel. Additionally, in areas where city gas piping is not available, relatively expensive propane gas must be used. In particular, gas fuel is indispensable for kitchen-related heat sources, and it would be very convenient if liquid fuel could be used as a gas during use.

The present invention is a liquid fuel gasification converter that meets the above requirements by adjusting the most difficult balance between the amount of gas produced and the amount used, withstanding even rapid gas usage to a certain extent, and allowing the gasification converter to operate and stop. The present invention provides a liquid fuel gasification conversion device that reduces the number of times.

An embodiment of the present invention will be described below based on the accompanying drawings.

The central element in this device is a gasification converter 1 made of heat-resistant metal, which has a reaction chamber 2, in which a catalyst layer 3 for steam reforming is provided. . A heater 4 for heating the reaction chamber 2 is provided on the outer periphery of the reaction chamber 2,
This heater 4 is energized and controlled to a predetermined temperature when steam reforming is performed. Furthermore, a steam heating chamber 5 is provided on the outer periphery of the heater 4 so that the heat released to the outside of the heater 4 can be effectively utilized. A heat insulating material 6 is wrapped around the outermost part so as to cover the entire gasification converter 1 to prevent excess heat from leaking to the outside. The liquid fuel is supplied from the oil tank 7 containing the raw material liquid fuel via the oil feed pipe 9 and the oil feed pump 10, and from the water tank 8 via the water feed pipe 11 and the water feed pump 12. A liquid fuel evaporator 13 is provided in a portion of the reaction chamber 2 where liquid fuel is vaporized to ensure smooth evaporation and to prevent tar from being deposited. Further, the water supply circuit to the reaction chamber 2 has a filter 14 on the way to remove fine dust, and a double pipe 1 for heat exchange with the heat of the heated gas.
The water vapor is configured to enter the steam heating chamber 5 while evaporating through the outer pipe 16 of the steam heater 5. The steam is further heated to become high-temperature steam, enters the reaction chamber 2 through the communication hole 17, mixes with the liquid fuel vapor described above, enters the catalyst layer 3, and undergoes steam reforming.

The steam reforming gas is the double pipe 1 mentioned above.
5 and reaches the gas reservoir 19 while being cooled by water. A pressure reducing check valve 21 is provided at the inlet 20 of the gas reservoir 19 so that the gas that has once entered the gas reservoir 19 does not return to the reaction chamber 2 again. Excess water vapor and some liquid fuel during the reaction are branched from a three-way path 22 provided midway through the path leading to the gas reservoir 19 and flow into a residual water reservoir 23. When a certain amount of water remains in this residual water reservoir 23, it is sent to the gasification converter 1 again by the water feed pump 12.

The generated gas is temporarily stored in a gas reservoir 19, and when used, the pressure is reduced through a pressure reducing valve 24, and the gas is taken out of the system through a gas pipe 25.

The air pump 26 periodically sends air into the reaction chamber 2 through an air supply pipe 27, and carbon deposited on the surface of the catalyst is removed by combustion with this air. Also, reaction chamber 2
A lid 28 covering the upper part is fixed to a flange 29 on the upper part of the main body of the gasification converter 1 via a heat-resistant packing 30 with bolts 31 and nuts 32. An oil feed pipe 9 and an air feed pipe 27 are connected to the center of the lid 28 and communicated with the liquid fuel evaporator 13 on the back side of the lid 29.

Specifically, the gas reservoir 19 has the configuration shown in FIG. 2. This gas reservoir 19 is roughly divided into two parts, a base part 33 and a floating roof part 34, as shown in FIG.
By sliding, the floating roof portion 34 moves up and down, expanding and contracting.
Furthermore, a limit switch 37 that operates when the floating roof section 34 is at the bottom and a limit switch 38 that operates when the floating roof section 34 is at the top as shown by the broken line are attached to the wall surface 35.

The operation of the above configuration will be explained next.

First, the heater 4 of the gasification converter 1 is energized, and after the temperature inside the reaction chamber 2 rises and reaches a predetermined temperature,
The water feed pump 12 operates, and the water is heated on the way and is fed into the reaction chamber 2 while turning into heated steam. After a delay, the liquid fuel feed pump 10 operates, and the liquid fuel is sent to the reaction chamber 2 and vaporized into the reaction chamber 2 by the liquid fuel evaporator 13 . The catalyst layer 3 causes a steam reforming reaction between the two, and the generated gas enters the gas reservoir 19 and is stored while being cooled by water. At this time, excess water vapor is cooled and condensed through the double pipe 15, and then enters the residual water reservoir 23 and is stored therein. This residual water is sent into the reaction chamber 2 again by the water feed pump. The gas entering the gas reservoir 19 continues to push the floating roof portion 34 of the gas reservoir 19 up to the position where the limit switch 36 is activated. When the limit switch 36 operates, the gasification converter 1 is stopped in conjunction with the operation, and the gasification reaction is automatically stopped. Also, due to the consumption of gas fuel, the gas reservoir 19
Floating roof part 34 lowers and limit switch 3
5 operates, the gasification converter 1
operates and the gasification reaction starts automatically.

As described above, the liquid fuel gasification conversion device according to the present invention can store a predetermined amount of gas by expanding the gas reservoir, so it can stably supply gas even during large consumption. When the amount decreases, the gasification converter automatically operates to generate gas, so that gas can be stably supplied from this point of view as well.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a liquid fuel gasification converter according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the configuration of a gas reservoir. 1... Gasification converter, 2... Reaction chamber, 3... Catalyst layer, 7... Oil tank, 8... Water tank, 1
9... Gas reservoir, 33... Base, 34... Floating roof, 37, 38... Limit switch.

Claims (1)

[Scope of utility model registration request] It is equipped with a gasification converter that mixes liquid fuel such as kerosene, light oil, etc. with water and converts it into gasified fuel through a steam reforming catalyst, and a gas reservoir connected to this gasification converter, The reservoir is configured to expand and deflate, and it is equipped with two switches that operate when it expands and when it deflates.The switch that operates during expansion stops the gasification converter when it operates, and the switch that operates during deflation stops the gasification converter. A liquid fuel gasification converter, characterized in that when activated, a gasification converter is activated.