JPS6319697Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vaporizing oil combustor equipped with a vaporizer, and particularly relates to an improvement of the vaporizer portion that has a mechanism for removing carbonaceous materials adhering to the nozzle for ejecting vaporized gas. It is something.

Conventionally, in this type of vaporizing oil combustor, the diameter of the vaporizer outlet for ejecting vaporized gas toward the burner was always kept constant because carbonaceous materials, etc. tend to adhere to the outlet. In order to maintain this level, a needle-shaped valve (hereinafter referred to as a needle valve) was loosely inserted into the spout to remove carbonaceous material and the like. The above-mentioned needle valve is electrically controlled by a solenoid or the like. For example, the needle valve is formed to open the spout when energized and close the spout when de-energized, and is connected to the movable body of the solenoid. It is attached to the tip of the rod and has a large number of parts, including a relatively expensive solenoid, making it difficult to reduce costs. In addition, electric power is also required to supply electricity to the solenoid during use, so there has been a desire for a power-saving type vaporizing oil combustor.

The present invention was developed in view of the above points, and it is a mechanism for opening and closing the vaporized gas outlet using a needle valve operated by the reversing force of a bimetal that is reversed by the heat of the vaporizer, without using any solenoids. The present invention provides a vaporizing oil combustor having the following features.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a sectional view of a main part of a vaporizing oil combustor showing a state before or during preheating of a vaporizer, and FIG. 2 is a sectional view of the vaporizer after preheating is completed.

In the figure, reference numeral 1 denotes a vaporizer that vaporizes oil in a fuel tank 3 that is supplied by an electromagnetic pump 2. It is equipped with a preheating heater (not shown), and one side is equipped with a preheating heater (not shown) to direct the vaporized gas to the burner side (not shown). A spouting body 5 having a spout 4 that spews out water is attached. Reference numeral 6 denotes a valve rod main body mounted on the side opposite to the spout 4 of the carburetor 1, and a valve rod 7 that moves in the directions of arrows A and B is disposed in the center. 8 locks one end of a coiled spring 9 housed around the valve rod 7, and
This is a movable plate fixed by a fitting groove provided in the peripheral wall of the valve rod 7. Reference numeral 10 denotes a holding plate opposite to the movable plate 8, which locks the other end of the spring 9 and has a magnet 11 fixed therein.
12 is a guide rod with a slightly smaller diameter than the valve rod 7, 13
is a valve having a smaller diameter than the guide rod 12, and has a tapered tip and a needle valve 14 inserted into the spout 4 in the center. Reference numeral 15 denotes a ring-shaped bimetal which is fixed to the retaining plate 10 and is engaged with a fixture such as an E-ring fixed around the guide rod 12.
Reference numeral 16 denotes a valve rod case that houses the valve rod 7, a part of the guide rod 12, the spring 9, the magnet 11, the movable plate 8, and the retaining plate 10, and the screw 18, etc. It is screwed onto the carburetor 1. Further, the bimetal 15 has its outer peripheral end fixed to the holding plate 10 and is closely held on the outer peripheral wall of the carburetor 1.

Next, the operation of the embodiment of the present invention having the above configuration will be explained.

First, with reference to FIG. 1, a state in which the vaporizer 1 is not preheated or is being preheated will be described. In this case, the bimetal 15 is the magnet 1
The holding plate 10 and the movable plate 8 are arranged so as to be attracted to each other by the suction force of 1 against the elastic force of the spring 9, and the needle valve 14 is completely inserted into the spout 4.

Although not shown, when the temperature of the vaporizer 1 is increased by the preheating heater of the vaporizer 1 and the bimetal 15 is reversed in the direction of arrow A, "this instantaneous force causes the above-mentioned attractive force of the magnet 11 to rise." The valve rod 7 is moved in the direction of the arrow A against the pressure, and at the same time, the movable plate 8 is pressed against the inside of the valve rod case 16 by the elastic force of the spring 9, and the valve rod 7 is stopped.At this time, the valve rod 7 is stopped. The rod 12, valve element 13, and needle valve 14 also move in the direction of arrow A, and the needle valve 14 is completely removed from the spout 4. At this time, the electromagnetic pump 2 is activated at the same time to vaporize. When fuel oil is supplied into the vessel 1, vaporized gas sufficiently vaporized in the vaporizer 1, which is in a high temperature state, is ejected from the ejection port 4 toward the burner side.
The state shown in FIG. 2 is maintained and the normal operation of the carburetor is continued. It should be noted that the vaporizer 1 recovers combustion heat in a steady state of combustion, and the amount of heat generated by the preheating heater is reduced compared to the initial stage.

Now, when the combustor is stopped, the carburetor 1
When the temperature of the bimetal 15 in FIG. 2 decreases and the bimetal 15 in FIG. Due to the suction force, the movable plate 8 attracts the holding plate 10 and returns to the state shown in FIG. 1. Therefore, the needle valve 14 is inserted through the jet nozzle 4 again, and the carbonaceous medium and the like attached to the jet nozzle 4 during combustion can be removed.

As explained above, the present invention is applicable to a vaporizing type oil combustor in which fuel oil is supplied from a fuel tank by an electromagnetic pump and is vaporized by heating to a vaporizer, and vaporized gas is ejected from the vaporizer for combustion. Since the vaporized gas outlet is opened and closed using a needle valve operated by the reversing force of a bimetal, there is no need for a conventional solenoid or electric power to operate this solenoid, thereby ensuring cost reduction. I can do it.

Moreover, since the structure is such that the movable plate is attracted by a magnet, in addition to the movement stroke of the valve rod due only to the displacement of the bimetal, the movement stroke of the valve rod in the front-rear direction is equal to the distance within the range in which the movable plate can be attracted by the magnet. It is possible to take a large amount of

Therefore, during combustion, the needle valve can be moved further back from the jet nozzle, so that the flow of vaporized gas near the jet nozzle can be made smoother, and as a result, good combustion can be performed.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main parts of the vaporizing oil combustor of the present invention showing the state before or during preheating of the vaporizer, and Fig. 2 is a cross-sectional view of the same vaporizer after preheating is completed. , 2 is an electromagnetic pump, 3 is a fuel tank, 4 is a spout, 7 is a valve lever, 8 is a movable plate, 9 is a spring, 10 is a holding plate, 11 is a magnet, 14 is a needle valve, and 15 is a bimetal.

Claims (1)

[Scope of utility model registration request] A vaporizer having a spout at its tip and vaporizing the supplied fuel, a valve rod having a needle valve at one end that is removably inserted into the jet nozzle, and a valve rod at the outer periphery of the other end of the valve rod. A fixed movable plate, a retaining plate that is loosely inserted into the outer periphery of the valve rod, is provided opposite to the movable plate, and has its outer periphery fixed to the carburetor side, and is fixed to the retainer plate and holds the movable plate. A magnet that maintains the valve rod with its needle valve inserted into the spout by adsorption, a spring that is compressed between the movable plate and the holding plate, and a magnet that applies heat to the vaporizer. A vaporizing oil combustor comprising: a bimetal which is electrically fixed and is displaced in response to whether or not the temperature is above a predetermined temperature to move the valve rod back and forth with respect to the spout.