JPS6238093Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid combustion device that supplies liquid fuel such as kerosene to a pot burner using an electromagnetic pump. In a liquid combustion device that uses an electromagnetic pump to supply liquid fuel to a pot burner, even if combustion in the pot burner does not occur or is interrupted for some reason, as long as the electromagnetic pump operates, the fuel will continue to be supplied. This is inconvenient because fuel overflows from the air hole provided in the pot burner, and conversely, if the electromagnetic pump becomes inoperable due to a power outage or the like, there is an inconvenience that combustion cannot be supplied. The purpose of the present invention is to obtain a device that does not have such inconveniences, and is a device in which liquid fuel supplied from a fuel tank 1 to a level regulator 2 is supplied to a pot burner 4 by an electromagnetic pump 3. The liquid level of the constant liquid level device 2 is set below the lowest air hole 5 of the pot burner 4, and the electromagnetic pump 3 and the pot burner 4 are
The liquid supply passage 6 connecting the two is connected to the constant liquid level device 2 via the return passage 7, and the open end of the return passage 7 that communicates with the constant liquid level device 2 is placed above the liquid level of the constant liquid level device 2. A communication opening is made below the air hole 5 of the pot burner 4, and the liquid level device is communicated with the pot burner 4 via the liquid supply passage 6, the return passage 7, and the valve mechanism 8. , a valve port 8b that communicates between the liquid level device 2 provided in the valve housing 8a and the return passage 7, and an on-off valve 8c that opens and closes the valve port 8b. An inflow valve 11 linked to the float 10 is provided, and the liquid level is kept constant by opening and closing the inflow valve 11 in linkage with the float 10.

What is shown in FIGS. 1 to 5 is an electromagnetic pump 3.
is attached to the top surface of the constant liquid level device 2, and the electromagnetic pump 3
The liquid fuel in the constant liquid level device 2 is pumped up and supplied to the pot burner 4 via the liquid supply passage 6, and the return passage 7 has a passage 7a which communicates with the liquid supply passage 6 at one end, and a It consists of a riser pipe 7b that stands up in the constant liquid level device 2 that communicates with the passage 7a, and the upper end of the riser pipe 7b is placed above the liquid level of the constant liquid level device 2 and below the air hole 5 of the pot burner 4. I opened it.

The valve mechanism 8 shown in FIG. 5 includes a valve housing 8a communicating with the riser pipe 7b and a valve port 8b provided in the valve housing 8a.
It consists of an on-off valve 8c that controls opening and closing. However, as shown in FIG. 6, the valve mechanism 8 may use the riser pipe 7b as a valve housing, and the on-off valve 8c may be attached to this, and in this case, the on-off valve 8c may be a tapered type with a flow rate adjustment function. .

What is shown in Fig. 7 and Fig. 8 is the constant liquid level device 2.
A block 12 is attached to the block 12, and a first liquid supply passage 6a and a second liquid supply passage 6a constituting the liquid supply passage 6 are attached to the block 12.
One end of the first liquid supply passage 6a is connected to the outlet of the constant liquid level device 2, and the electromagnetic pump 3 is connected to the other end of the first liquid supply passage 6a. The suction port is connected, and one end of the second liquid supply passage 6b is connected to the discharge port of the electromagnetic pump 3, and the second liquid supply passage 6b is connected to the pot burner 4 to form a constant liquid level device 2.
of liquid fuel is supplied to the pot burner 4.

The return passage 7 is composed of a liquid supply passage 7a that communicates with a second liquid supply passage 6b provided in the block 12, and a riser pipe 7b erected in the liquid level regulator 2, and the upper end of the riser pipe 7b. As described above, a communication opening was made above the liquid level of the constant liquid level device 2 and below the air hole 5 of the pot burner 4.

Next, the operation of this device will be explained.

Normally, the liquid level device 2 acts as a liquid storage section, and the liquid fuel in the liquid level device 2 is pumped up by the electromagnetic pump 3. When the liquid level drops, the inflow valve 11 opens and the liquid fuel is transferred from the fuel tank 1. will be replenished. Therefore, the constant liquid level device 2 is always kept in a state where a constant amount of fuel is stored.

However, if combustion is not performed in the pot burner 4 for some reason and the electromagnetic pump 3 continues to operate, fuel remains in the pot burner 4. However, when the liquid level exceeds the opening of the return pipe 7, the fuel flows back into the level regulator 2 through the opening, and the liquid level in the level regulator 2 rises above the constant level, so the inflow valve 11 opens. Never.

Therefore, the fuel only circulates between the pot burner 4 and the liquid level regulator 2, and the fuel does not overflow from the air hole 5 provided in the pot burner 4.

In the event of a power outage or failure of the electromagnetic pump 3,
By opening the valve mechanism 8, liquid fuel can be supplied to the pot burner 4 via the liquid supply passage 6 and return passage 7.

As described above, in the present invention, even if the electromagnetic pump 3 continues to operate while the combustion by the pot burner 4 is stopped or interrupted, when the liquid level reaches above the opening position of the return pipe, the liquid fuel is transferred to the return pipe 7. The fuel only circulates between the constant liquid level device 2 and the pot burner 4 via the fuel tank, and the liquid level does not rise any further. Therefore, there is no overflow of fuel from the air hole 5 provided in the pot burner 4, and the fuel can be used safely. Even if the electromagnetic pump 3 is not activated, the on-off valve 8c of the valve mechanism 8
By opening the valve port 8b, the inside of the constant liquid level device 2 and the return passage 7 are communicated with each other, and fuel can be supplied to the pot burner. Since the fuel can be supplied through the valve mechanism 8 through the return passage 7 and the liquid supply passage 6, the fuel can be supplied to the pot burner when the electromagnetic pump 3 is not operating. There is no need to provide a separate liquid supply passage for supplying liquid, and the structure is simple.

[Brief explanation of the drawing]

In the drawings, Fig. 1 is an explanatory diagram showing an example of the implementation of the present invention, Fig. 2 is a plan view of the main part thereof, Fig. 3 is a sectional view taken along the - line, and Fig. 4 is a sectional view taken along the - line. Figure 5 is a cross-sectional view taken along the line, and Figure 6 is a cross-sectional view of the
FIG. 7 is a partially cut-away plan view of another embodiment, and FIG. 8 is a cross-sectional view cut away along the line -2. 1...Fuel tank, 2...Constant liquid level diagram, 3...Electromagnetic pump, 4...Pot burner, 5...Air hole,
6...Liquid supply passage, 7...Return passage.

Claims (1)

[Scope of utility model registration request] In the case where the liquid fuel supplied from the fuel tank 1 to the constant liquid level device 2 is supplied to the pot burner 4 by the electromagnetic pump 3, the liquid level of the constant liquid level device 2 is adjusted from the air port 5 at the lowest stage of the pot burner 4. The liquid supply passage 6 connecting the electromagnetic pump 3 and the pot burner 4 is connected to the constant liquid level device 2 via the return passage 7, and the open end of the return passage 7 is connected to the constant liquid level device 2. is opened above the liquid level of the liquid level device 2 and below the air port 5 of the pot burner 4, and the liquid level device is connected to the liquid supply passage 6, the return passage 7, and the valve machine 8. The valve mechanism 8 includes a valve port 8b that communicates the liquid level regulator 2 provided in the valve housing 8a with the return passage 7, and an on-off valve 8c that opens and closes the valve port 8b. A pot-type liquid combustion device consisting of: