JP2005308368A - Oil supply device of liquid fuel combustion device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive oil supply device of a liquid fuel combustion device capable of allowing a user to easily confirm the mixing of water into an oil tank. <P>SOLUTION: This oil supply device of the liquid fuel combustion device comprises an oil tank 3 for storing the liquid fuel, a cartridge tank 1 for supplying the liquid fuel to the oil tank 3, and an oil supply filter 2 for preventing the intrusion of dust in supplying the liquid fuel from the cartridge tank 1 to the oil tank 3. The oil supply filter 2 has a screen 2a for preventing the intrusion of dust on its side face part, and a recessed part 2b on its bottom face part to store the liquid, and a water detecting sheet 6 is mounted in the recessed part 2b. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an oil supply device for a liquid fuel combustion apparatus that vaporizes and burns liquid fuel.

  A conventional oil supply device for a liquid fuel combustion device has a structure in which water mixed in an oil tank is stored between two insulated electrodes, and a water detection function for detecting water by the difference in electrical resistance between water and liquid fuel (For example, refer to Patent Document 1).

JP 2002-243525 A (page 4, FIG. 1)

In the liquid fuel combustion device, when water enters the oil tank that stores liquid fuel, water accumulates on the bottom of the oil tank, and when water accumulates above the suction port of the electromagnetic pump, water is sent to the burner. Fire extinguishing abnormally. In the case of a liquid fuel combustion device without a water detection function, the user judged that the fire was abnormal without checking the water in the oil tank, and sent out for repair.
On the other hand, as described in Patent Document 1, water is stored between two insulated electrodes, and there is a water detection function that detects water contamination by the difference in electrical resistance between water and liquid fuel. Requires two insulated electrodes, a means for detecting an electrical resistance between them, a wiring connecting the electrodes, and the like, resulting in an increase in cost.

  The present invention has been made to solve the above-described problems, and provides a fuel supply device for a liquid fuel combustion apparatus that allows a user to easily and easily check the mixing of water into an oil tank.

  An oil supply device for a liquid fuel combustion apparatus according to the present invention includes an oil tank for storing liquid fuel, a cartridge tank for supplying liquid fuel to the oil tank, and intrusion of dust when supplying liquid fuel from the cartridge tank to the oil tank. And a water detection sheet that changes color when water comes into contact with the oil supply filter.

According to the fuel supply device of the liquid fuel combustion apparatus according to the present invention, when water is mixed in the oil tank, the water detection sheet installed in the fuel supply filter comes into contact with water, and the water detection sheet changes color. The user can easily see water contamination with his eyes. Moreover, it is only necessary to install a water detection sheet, which can be provided at a lower cost than the conventional method of detecting water using two electrodes.

Embodiment 1.

Embodiment 1 of the present invention will be described below with reference to FIGS.
FIG. 1 is a longitudinal sectional view of a liquid fuel combustion apparatus showing Embodiment 1 of the present invention, FIG. 2 is a detailed view of an oil supply filter showing Embodiment 1 of the present invention, and FIG. It is the figure seen from the upper part of the water detection sheet | seat which shows Embodiment 1. FIG.

  1 to 3, the cartridge tank 1 supplies liquid fuel to the oil tank 3. The oil supply filter 2 is provided at a connection portion between the cartridge tank 1 and the oil tank 3 so as to prevent dust from entering the oil tank 3 when the oil is supplied from the cartridge tank 1 to the oil tank 3. An electromagnetic pump 4 is attached to the upper surface of the oil tank 3, and the liquid fuel pumped up by the electromagnetic pump 4 is sent to the burner 5. The burner 5 vaporizes the liquid fuel sent by the electromagnetic pump 4 in advance, mixes it with combustion air, and ignites and burns it with an ignition means (not shown). The oil supply filter 2 has a net 2a on the side surface portion for preventing invasion of dust, and has a concave portion 2b formed so that liquid is accumulated on the bottom surface portion, and a water detection sheet 6 is provided in the concave portion 2b. Yes. The water detection sheet 6 changes its color when it comes into contact with water. For example, a material that reacts with water and changes color, such as anhydrous copper sulfate, anhydrous cobalt nitrate, and silica gel, is supported on the sheet surface.

Next, the operation of the above configuration will be described.
When water is mixed in the liquid fuel in the cartridge tank 1, the water first enters the fuel supply filter 2. When more water is mixed, the water enters the oil tank 3 through the mesh 2 a on the side surface of the oil supply filter 2. Even if there is liquid fuel at first, the water that has entered the recess 2b of the oil supply filter 2 is replaced so that the water becomes the lower layer due to the specific gravity. For this reason, the water detection sheet 6 and water which were installed contact water, and the water detection sheet 6 will discolor.
Thus, when the user removes the cartridge tank 1 from the oil tank 3, the user can notice the discoloration of the water detection sheet 6 and can easily visually recognize that water has been mixed.
Further, even when the burner 5 is abnormally extinguished, if the cartridge tank 1 is removed and the water detection sheet 6 is checked for discoloration, whether the abnormal fire extinguishing is due to water contamination or another cause. Can be easily determined.

  As described above, according to the first embodiment, when water is mixed in the oil tank 3, the water detection sheet 6 installed in the oil supply filter 2 comes into contact with water, and the water detection sheet 6 changes color. Therefore, the user can easily visually recognize the mixing of water with his / her eyes. Moreover, it is only necessary to install the water detection sheet 6 in the oil supply filter 2, and it can be provided at a lower cost than a conventional method of detecting water using two electrodes.

Embodiment 2

A second embodiment of the present invention will be described below with reference to FIG.
FIG. 4 is a configuration diagram of a liquid fuel combustion apparatus showing Embodiment 2 of the present invention.
In the second embodiment, as shown in FIG. 4, the bottom surface of the oil tank 3 has a recess 3a, and a water detection sheet 6 that changes color when water comes into contact with the recess 3a is provided.
The concave portion 3a is provided at a position where it can be visually recognized from the outside when the oil supply filter 2 is removed, and at a position just below the oil supply filter 2 so that the mixed water accumulates.

  In the configuration of the second embodiment, when water is mixed in the liquid fuel in the cartridge tank 1, the water enters the fuel supply filter 2. When more water enters, the oil enters the oil tank 3 through the mesh 2 a on the side surface of the oil supply filter 2. Since the invading water gathers in the recess 3a of the oil tank 3, even if there is liquid fuel there, the water is switched to become a lower layer due to the specific gravity. For this reason, the water detection sheet 6 installed in the recess 3a comes into contact with water, and the water detection sheet 6 is discolored.

Thereby, the user can easily confirm whether water is mixed by removing the cartridge tank 1 and the oil supply filter 2 from the oil tank 3 and checking the water detection sheet 6 for discoloration. In addition, even when the burner 5 burns abnormally, the cartridge tank 1 and the oil supply filter 2 are removed, and the water detection sheet 6 is checked for discoloration. You can easily determine whether it is due to another cause.

As described above, even with the configuration of the second embodiment, an effect equivalent to that of the first embodiment can be obtained.

It is a longitudinal cross-sectional view of the liquid fuel combustion apparatus which shows Embodiment 1 of this invention. It is detail drawing of the oil supply filter which shows Embodiment 1 of this invention. It is the figure seen from the upper part of the water detection sheet which shows Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the liquid fuel combustion apparatus which shows Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cartridge tank 2 Oil supply filter 2a Net 2b Concave 3 Oil tank 3a Concave 4 Electromagnetic pump 5 Burner 6 Water detection sheet

Claims (3)

An oil tank for storing liquid fuel; a cartridge tank for supplying liquid fuel to the oil tank; and an oil supply filter for preventing intrusion of dust when supplying liquid fuel from the cartridge tank to the oil tank. A fuel supply device for a liquid fuel combustion apparatus, characterized in that a water detection sheet that changes color upon contact is provided. The oil supply filter has a net on the side surface to prevent intrusion of dust, and a concave portion formed so that liquid accumulates on the bottom surface, and a water detection sheet that changes color when water comes into contact with the concave portion is provided. The oil supply apparatus for a liquid fuel combustion apparatus according to claim 1. An oil tank that stores liquid fuel; a cartridge tank that supplies liquid fuel to the oil tank; and an oil supply filter that prevents intrusion of dust when liquid fuel from the cartridge tank is supplied to the oil tank. A water detection sheet is provided that has a recessed portion formed so that mixed water can be collected at a position that can be visually recognized from the outside when the oil supply filter is removed, and that changes color when water comes into contact with the recessed portion. A fueling device for a liquid fuel combustion device.

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