KR20000018405A - Moisture sensing device in fuel tank - Google Patents

Abstract

PURPOSE: A moisture sensing device of a fuel tank is provided to solve the ignition defect caused by moisture and the inconvenience of a user by warning a user after sensing the moisture amount inside of a fuel tank. CONSTITUTION: A moisture sensing device of a fuel tank is formed by: a tank body(50) filled with fuel; an electronic pump(57) installed on the upper area of the tank body to feed fuel to an oil burner; a fuel filter(56) eliminating impurities of fuel introduced into the electronic pump; a drain bolt(55) installed on the lower face of the tank body to exhaust moisture included in fuel; a moisture sensing unit installed on the side lower area of the tank body to inform a user by sensing the amount of moisture through the specific gravity difference between moisture and fuel; and the moisture sensing unit consisting of a buoyant body(61) having the intermediate specific gravity between water and fuel, an alarm piece installed on the outer wall of the tank body to alarm a user by sensing if the buoyant body is raised higher than a specific height, and a porous guide(66) installed on the inner wall of the tank body to prevent the buoyant body from displacing.

Description

Moisture Sensing Device in Fuel Tank

The present invention relates to a fuel tank in which fuel of a warm air heater is stored, and in particular, to detect a water content inside a fuel tank and to warn a user, thereby preventing water ignition caused by moisture and inconvenience of the user. It is about.

In general, the warm air heater is mounted on the case 11, the front grill 12 installed at the front lower side of the case 11 and air is introduced, and mounted on the front grill 12 as shown in FIG. The air filter 13 for filtering air impurities, the blower 14 for blowing the sucked air upwards, the burner 15 for burning the fuel to generate hot combustion gas, and the fuel tank 16 An electronic pump (not shown) for supplying fuel to the burner, a heat exchanger 17 for warming air through heat exchange between the blown air and the combustion gas, an outlet 18 through which the warmed air is discharged into the room, and a heat exchange The exhaust gas outlet 19 is discharged.

The conventional warm air heater configured as described above is configured to suck the indoor air to raise the temperature and then discharge it into the room.

As the blower 14 operates, indoor air flows into the case 11 through the front grille 12. At this time, the air filter 13 to filter out impurities such as dust contained in the incoming air. In addition, the burner 15 burns the fuel pumped by the electronic pump in the combustion chamber.

Therefore, in the heat exchanger 17, heat exchange is performed between the air blown by the blower 14 and the combustion gas, and the air heated through the heat exchange is discharged into the room through the outlet 18. Of course, the heat exchanged combustion gas is discharged to the outside through the exhaust gas outlet 19.

Here, looking at the fuel tank having a great influence on the operation of the warm air heater, the conventional fuel tank is a tank main body 20 is filled with fuel, as shown in Figure 2, the tank body 20 to inject fuel A fuel inlet 21 provided outside the warm air fan, a connection hose 22 connecting the fuel inlet 21 and the tank main body 20, and an upper amount of the fuel in the tank A flow rate meter 24 for detecting fuel, a buoy 23 positioned on the oil level to display the fuel amount on the flow rate meter 24, and an oil burner (not shown) installed above the tank body 20 to supply fuel. An electronic pump 27 for supplying, a fuel filter 26 for removing impurities from fuel flowing into the electronic pump 27, and a bottom of the tank body 20 to discharge moisture contained in the fuel. It is composed of a drain bolt 25 to enable.

The conventional fuel tank configured as described above is configured to temporarily store fuel supplied through the fuel inlet and then supply fuel to the oil burner when the electronic pump is operated.

When the user injects fuel through the fuel inlet 21, the fuel is stored in the tank body 20. The amount of fuel stored is indicated on the flowmeter 24 by a buoy 23 located on the oil level, and the user views the flowmeter 24 to replenish the fuel. The fuel of the tank body 20 is moved to the oil burner through the electronic pump 27 when the electronic pump 27 is operated, and the fuel filter 26 installed below the electronic pump 27 is the electronic pump 27. It filters out impurities from the fuel entering the process.

The fuel may contain water, but due to the difference in specific gravity between the fuel and water, the water sinks to the bottom of the tank body 20, and the sinked water opens the drain bolt 25 to the outside of the tank body 20. Can be discharged.

However, since the conventional fuel tank configured as described above is not known the amount of water remaining in the tank, the water can be supplied to the oil burner through the fuel filter, resulting in a poor ignition caused by water, thereby causing inconvenience and inconvenience to users. There is a problem that causes.

The present invention has been made to solve the above problems of the prior art, by installing a device that can detect the amount of water in the lower side of the tank body to allow the water to be discharged at the appropriate time, poor ignition due to moisture It is an object of the present invention to provide a moisture detection device in a fuel tank that can solve the problems, such as.

1 is a configuration diagram schematically showing a typical warm air heater,

2 is a configuration diagram showing a conventional fuel tank,

3 is a configuration diagram of a fuel tank in which a moisture sensing device according to the present invention is installed;

4 is a detailed view of the moisture sensing device in the fuel tank according to the present invention.

<Explanation of symbols for main parts of the drawings>

50: tank body 51: fuel inlet

52: connection hose 53: buoy

54 flow meter 55 drain bolt

56 fuel filter 57 electronic pump

60: moisture detection unit 61: buoyancy body

62: on / off switch 63: lever

64: rubber packing 65: fixed screw

66: guide

The present invention for achieving the above object is a tank body that is filled with fuel, an electronic pump installed on the upper side of the tank body to supply fuel to the oil burner, and a fuel filter for removing impurities in the fuel flowing into the electronic pump And a drain bolt installed at a bottom surface of the tank body to discharge the water contained in the fuel, wherein the amount of water is provided at a lower side of the tank body through a specific gravity difference between water and fuel. The water detection unit is installed to detect and inform the user, the water detection unit is installed on the outer wall of the tank body and the buoyancy body having an intermediate specific gravity of water and fuel, and detects when the buoyancy body is raised by a certain amount or more to the user Warning means for warning and a porous guy installed on the inner wall of the tank body to prevent the buoyancy body from being separated That is configured to be characterized.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The fuel tank in which the water sensing device in the fuel tank of the present invention is used includes a tank main body 50 filled with fuel as shown in FIGS. 3 and 4, and a warm air fan to inject fuel into the tank main body 50. A fuel injection port 51 provided outside the connection port, a connection hose 52 connecting the fuel injection port 51 and the tank main body 50, and installed above the tank main body 50 to sense the amount of fuel in the tank. Flow meter 54, a buoy 53 positioned on the oil surface to display the fuel amount on the flow meter 54, and an electronic pump 57 provided above the tank body 50 to supply fuel to the oil burner. And a fuel filter 56 for removing impurities from fuel flowing into the electronic pump 57 and a drain bolt 55 installed at a bottom of the tank body 50 to discharge moisture contained in the fuel. ) And specific gravity of fuel and water in the lower side of the tank body Sensing the amount of water over and informs the user is composed of a moisture sensor (60).

The moisture detection unit 60 is installed on the buoyancy body 61 having an intermediate specific gravity of water and fuel, and installed on the outer wall of the tank body 50 to detect when the buoyancy body 61 is raised above a certain level. Warning means for warning this to the inner wall of the tank body 50 is composed of a guide 66 of the porous shape to prevent the detachment of the buoyancy body (61). The warning means has an on / off switch 62 which sends a signal to the display unit, and is installed in the on / off switch 62 and one end is inserted into the tank main body 50 so that the buoyancy body 61 is closed. A lever 63 for clamping the on / off switch 62 in accordance with vertical movement, a rubber packing 64 for hermetically sealing a hole into which the lever 63 is inserted, the on / off switch 62 and rubber It is composed of a fixing screw 65 for fixing the packing 64 to the outer wall of the tank body 50.

The water detection device in the fuel tank of the present invention configured as described above is to warn the user by detecting the amount of water in the fuel.

When fuel is injected into the tank body 50 through the fuel inlet 51, the moisture contained in the fuel sinks to the bottom surface due to the specific gravity difference with the fuel, so that a constant interface is formed between the water and the fuel. At this time, since the buoyancy body 61 having an intermediate specific gravity of water and fuel is located on the interface between the water and the fuel, it is possible to check the water level.

Therefore, when the amount of water in the fuel increases to increase the amount of water, the buoyancy body 61 is raised, and when the buoyancy body 61 is raised to push the lever 63, the on / off switch (by the lever 63) ( 62) is connected. When the on / off switch 62 is connected in an on state, a warning mark appears on the display, and the user recognizes that the amount of water is within the limit level, and opens the drain bolt 55 to discharge the water in the fuel tank 50. Let's go.

As such, the water detection device in the fuel tank of the present invention detects the amount of water in the fuel tank and warns the user, thereby having an advantage of eliminating ignition defects and inconvenience for the user.

Claims (2)

A tank body filled with fuel, an electronic pump installed at an upper side of the tank body to supply fuel to an oil burner, a fuel filter to remove impurities from fuel flowing into the electronic pump, and a bottom of the tank body, A fuel tank comprising a drain bolt for discharging moisture contained in fuel, The water detection unit is installed in the lower side of the tank body to detect the amount of water through the specific gravity difference between the water and fuel, and informs the user, The moisture sensing unit has a buoyancy body having an intermediate specific gravity between water and fuel, warning means installed on the outer wall of the tank body to detect when the buoyancy body is raised above a certain level and warning the user, and on the inner wall of the tank body. The water detection device in the fuel tank, characterized in that composed of a porous guide to prevent the separation of the buoyancy body. The method of claim 1, The warning means includes an on / off switch for sending a signal to a display unit and an on / off switch, one end of which is inserted into the tank body to interrupt the on / off switch according to the vertical movement of the buoyancy body. A lever, a rubber packing for sealing the hole into which the lever is inserted, and fixing means for fixing the on / off switch and the rubber packing to the outer wall of the tank body.