JPS6051004B2 - liquid fuel combustion equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid fuel combustion device that pumps liquid fuel to a combustor.

Conventionally, there are two main methods for pumping liquid fuel: one is to use a pump etc. to pump the fuel, and the other is to install the fuel tank at a high place. In the latter case, the fuel tank is installed at a high place, so it takes time to refill it, and if you want to obtain fuel supply pressure, you have to raise the tank to a certain height. , safety was an issue.

The present invention has been made in view of the above points, and its purpose is to provide a liquid fuel combustion device that can safely, reliably, easily, and inexpensively supply fuel to a combustor. It's there.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An explanation will be given below based on the drawings shown as embodiments of the present invention. In a liquid fuel combustion apparatus A shown in FIG. 1, which is an embodiment of the present invention, 1 is a water tank, 2 is a water storage tank, and 3 is a fuel tank.

The water tank 2 is installed higher than the water tank 1, and the lower part of the water tank 1 and the lower part of the water tank 2 are connected by a water supply pipe 4. Water C is stored in the water tank 2. The water supply pipe 4 is for supplying water C from the water tank 2 to the water tank 1 when the liquid fuel combustion device A is used, and a three-way valve 5 is provided in the middle of the water supply pipe 4. There is. Three-way valve 5
When liquid fuel combustion device A is used, water C is supplied to water tank 1 as described above, and when fuel B in fuel tank 3 runs out and fuel B is to be replenished, water C in water tank 1 is drained. The water C is discharged by switching the valve to the drain port 6 to prevent the water C from flowing out of the water storage tank 2. The upper part of the water tank 1 and the upper part of the fuel tank 3 for storing the fuel B are formed so as to be connected to each other through an air layer D by a pressure transmitting part (pipe) 7. The highest part of the pressure transmission section 7 is further connected to a water storage tank 2.
It is raised to a height of 2' or more above the water surface. The fuel tank 3 is provided with a fuel filler port 8 at its upper part, which is used when replenishing the fuel B.
A fuel supply pipe 10 is provided for supplying fuel B under pressure to the combustor 9. An inlet portion 11 of the fuel supply pipe 10 is provided at the lower part of the fuel tank 3. A flow rate regulating valve 2 for regulating the pressure-feeding flow rate of the fuel B is provided in the middle of the fuel supply pipe 10. Next, the operating state of this liquid fuel combustion device A will be explained.

Since water tank 2 is installed at a higher location than water tank 1, a pressure difference of a head difference H occurs between the water surface 2'' of water tank 2 and the water surface 1'' of water tank 1, and this pressure difference is used to B can be pumped to the combustor 9. The pressure of this water head difference H applies pressure to the air layer D in the water tank 1, and is further transmitted to the air layer D in the fuel tank 3 through the air layer D of the pressure transmitting part 7, and the liquid level of the fuel B Then, the fuel B is fed under pressure to the combustor 9 through the fuel supply pipe 10.The fuel B is consumed in the combustor 9, and the fuel B in the fuel tank 3 is also reduced. 3, water C is supplied from the water storage tank 2 in the water tank 1 by the pressure of the water head difference H by the amount corresponding to the reduction in the fuel B.
A cistern device 13 may be used to keep the water level 2'' constant, and since the cistern device 13 can supply water C, there is no need for a large water tank 2. As shown in the figure, even when water C fills up in the water tank 1 and rises through the pressure transmission part 7, the water C rises to the same level as the water surface 2" in the water tank 2 to a position 7", but beyond that it rises. The water head difference H becomes zero and does not rise, and water C does not enter the fuel tank 3. Also, in this state, the supply of fuel B to the combustor 9 inevitably stops. To replenish fuel tank 3 with fuel B, as described above,
Switch the three-way valve 5 and drain from the drain port 6. The water C in the water tank 1 is discharged, and the fuel B is refilled from the fuel filler port 8 of the fuel tank 3. FIG. 3 shows another embodiment of the present invention, in which a fuel tank 3 may be formed in a water tank 1 in a suspended state from above, and there is an air space between the periphery of the fuel tank 3 and the upper part of the water tank 1. , and this part becomes the pressure transmitting part 7.

In the upper part of the fuel tank 3, holes 14, 14, . If the water surface 2'' of the water tank 2 is lower than this hole 14, the water C will not mix with the fuel B in the fuel tank 3. Also, as shown in the figure, the three-way valve It is not necessary to use 5, but two two-way valves 5" can be used, one for the outlet 6,
The other end may be connected to the water supply pipe 4, and both may be operated and used like the three-way valve 5. When the combustor 9 is used in a hot water boiler or the like, a pipe 15 is branched from the middle of the water supply pipe 4 connected to the water storage tank 2 provided with the cistern device 13, and the pipe 15 is used to supply water C to the boiler or the like. If water C is not supplied from water supply pipe 4, water C will not be supplied to the boiler etc., and at the same time water C will not be supplied to water tank 1. Since pressurization is eliminated and the supply of fuel B to the combustor 9 is eliminated, the hot water boiler and the like will no longer be fired.

In the liquid fuel combustion device A, the water tank 1 and the fuel tank 3 do not have to be integrally formed, and may be formed separately.
Alternatively, a cutoff valve using a float may be formed in the middle of the pressure transmission section 7 in order to ensure the minimum supply pressure to the combustor 9.

In addition, a reed switch (proximity switch) is installed outside the pressure transmitting section 7, and a magnetic material is used for the float, so that when the water C rises to the pressure transmitting section 7, that is, when it approaches the minimum supply pressure. It is also possible to set the reed switch to ON and use a lamp or buzzer to issue an alarm. The present invention provides a combustor, a fuel tank,
A liquid fuel combustion device consisting of a water tank and a water storage tank, in which the water tank is installed at a higher place than the water tank, the lower part of the water tank is connected to the lower part of the water tank with a water supply pipe, and the upper part of the water tank and the fuel tank are connected. A pressure transmitting part is formed by communicating and connecting the upper part of the water tank through an air layer, and the highest part of the pressure transmitting part is formed to have a height higher than the water surface of the water storage tank, and the water storage The liquid level of the fuel is statically pressurized via the air layer due to the head difference between the water level of the tank and the water level of the water tank, and the fuel is supplied to the combustor from the bottom of the fuel tank through the fuel supply pipe, so the fuel is pumped. No power is required to supply fuel, and fuel can be supplied safely, inexpensively, easily, and reliably at a constant pressure by using the difference in head of water, and can also be supplied through an air layer and into a water storage tank. Since the pressure transmission part is formed above the water surface, water and fuel never mix.

That is, water does not mix with fuel, and conversely, fuel does not mix with water. And since the fuel tank can be installed in a low place,
This makes refueling easier.

[Brief explanation of the drawing]

1 is a schematic side view of an embodiment of the present invention, FIG. 2 is a schematic side view of the embodiment of FIG. 1 in a certain state, and FIG. 3 is a schematic side view of another embodiment. A...Liquid fuel combustion device, B...Fuel, C...Water, D...Air layer, 1...
... Water tank, 2 ... Water tank, 3 ... Fuel tank, 4 ... Water supply pipe, 7 ... Pressure transmission section, 8 ... ...Fuel supply pipe.

Claims (1)

[Claims] 1. A liquid fuel combustion device consisting of a combustor, a fuel tank, a water tank, and a water storage tank, in which the water tank is installed higher than the water tank, and the lower part of the water tank is connected to the lower part of the water tank with a water supply pipe. , a pressure transmission part is formed by connecting the upper part of the water tank and the upper part of the fuel tank through an air layer, and the highest part of the pressure transmission part is at a height higher than the water surface of the water tank. The fuel tank is formed in this manner, and the liquid level is pressurized via the air layer due to the water head difference between the water surface of the water tank and the water tank, and fuel is supplied to the combustor from the bottom of the fuel tank through the fuel supply pipe. A liquid fuel combustion device featuring: