JPS6218811Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention relates to a vaporizing oil burning appliance.

<Prior art> Conventionally, this type of oil-burning appliance heats the vaporizing cylinder to a preset temperature of 200 to 240 degrees Celsius using a heating device, and when this temperature is reached, fuel is simultaneously ejected to form vaporized gas and a mixture. It created air, which flowed into the burner section and was combusted.

Furthermore, as the combustion continues, the vaporizing cylinder is heated by self-heat, resulting in stable combustion.

Therefore, it is important for the vaporizing cylinder to maintain the set temperature for a short period of time and at a stable temperature during combustion.

However, conventional heating devices have been equipped with a plurality of polymerized heating elements of semiconductor elements, or equipped with a metal heating element.

<Problems to be solved by the invention> The former conventional one is relatively compact;
Since it controls its own heat, it has the advantage that there is no need to install a separate heat susceptor.However, since its heat capacity is small, it is necessary to use many units to raise the temperature of the vaporizing cylinder to 200 to 240 degrees Celsius, making it expensive. Due to the characteristics of the semiconductor element, the rising temperature is slow, so the set temperature cannot be reached until about 8 to 10 minutes after the heating device is started.

Also, since the latter has a large heat capacity, the temperature rises quickly and the vaporizer can be heated to 200 degrees Celsius in about 60 seconds.
Although it has the advantage of raising the temperature to a temperature of ~240 degrees Celsius, it has the disadvantage that it is necessary to attach a separate heat-sensitive body, resulting in an expensive and large-sized structure.

<Means for solving the problem> In order to have both of the above advantages and eliminate the disadvantages, a heating device is attached to the outside of the vaporization cylinder, and combustion air and fuel are supplied into the vaporization cylinder to generate the air-fuel mixture. In the case where combustion is performed in a built-in burner section, the heating device has a semiconductor element heating element that controls self-heating located inside, and a semiconductor element heating element outside that maintains a space that does not thermally interfere with each other. The present invention relates to a vaporizing oil combustion appliance characterized by comprising a heating element and a metal heating element which is controlled by switching.

<Operation> When the fire power adjustment handle 41 is rotated to a desired position and pressed, the power switch 42 and the start switch 43 are activated.
is closed, the semiconductor element heating element 8 of the heating device 5,
Then, the metal heating element 13 starts generating heat.

That is, since the metal heating element 13 has a large heat capacity,
The temperature rapidly rises to 200 to 240 degrees Celsius, and the heat is conducted to the partition plate/mount 12, and also to the upper part of the vaporizing tube 1 as shown by the arrow.

At the same time, since the semiconductor element heating element 8 has a small heat capacity, its temperature rises slowly and heat is conducted to the bottom part 1'.

After about 2 minutes have passed since both heating elements 8 and 13 are combined, the entire vaporizing cylinder 1 and the semiconductor element heating element 8 are combined.
Since the temperature reaches 200 to 240 degrees Celsius, the semiconductor element heating element 8 has a large electric resistance and is turned off, so that the semiconductor element heating element 8 and the metal heating element 13 stop generating heat.

Moreover, this metal heating element 13 and semiconductor element heating element 8
Since a space 11 is formed between the heating elements 8 and 13, there is a heat insulating effect, and therefore the heating elements 8 and 13 do not directly interfere with each other.

Due to the switching action of the semiconductor element heating element 8, the igniter 45 starts spark discharge, and the combustion fan 37 is also started.

Therefore, combustion air is supplied to the air passage 36 according to the degree of opening and closing of the damper 39, which has been rotated to a desired position in advance.

At the same time, static pressure is applied to the fuel surface of the fuel supply device 33, and fuel proportional to the amount of combustion air supplied to the carburetor 1 is supplied to the carburetor 1, becoming vaporized gas or mixture, and is ejected from the burner section 17. igniter 4
5 and starts blue flame combustion. After burning for a while, the flame of the burner section 17 heats the heat receiving section 3 of the vaporization tube 1, and the heat is conducted downward to the vaporization tube 1 by self-heat.
When the temperature falls below 200 to 240 degrees, the semiconductor element heating element 8 detects this and, of course, heats the vaporizing cylinder 1 together with the metal heating element 13 again.

<Example> 1 is a pot-shaped vaporizing cylinder made of cast aluminum and relatively thick, with an upwardly expanding inner wall surface that tapers (a shape that comes from the manufacturing process because it is made of cast metal). A heat receiving portion 3 is provided protruding from the opening 2, and a plurality of mounting protrusions 4 are provided protruding from the outer periphery approximately midway between the top and bottom.

Reference numeral 5 denotes a heating device installed in an inverted recess 6 extending from the bottom 1' of the vaporizing cylinder 1, and the heating device 5 controls the self-heating of a posister or the like housed in the bottom 1' with an insulating material 7 interposed therebetween. A push plate 9 and a first plate spring 10 with legs, which are made by superimposing two semiconductor element heating elements 8 and support them; and a plate spring 10 with a first leg.
There is an aluminum push plate 9 and a space 1 that acts as a heat insulator on the outside of the
1, an inverted plate-shaped partition plate/mounting base 12 made of aluminum, and a semiconductor element heating element 8 using a ceramic heater, sheathed heater, etc. on the outside of the partition plate/mounting base 12 to form an electrical circuit. It consists of a metal heating element 13 that is controlled by switching, and an enclosing plate 15 with a second leg plate spring 14 interposed outside the metal heating element 13. The upper surface is joined to the lower end of the vaporizing cylinder 1, and it is attached with a plurality of set screws 16.

Reference numeral 17 is a burner section, which includes a heat-resistant round plate-shaped head 18, a burner port body 20 having a number of burner ports 19 formed above and below, and a substantially T-shaped burner with a flow port 21 opened in the center and an upper outer periphery. a rectifier 23 whose side surface matches the inside of the opening 2 of the vaporizer cylinder 1 and has a concave groove 22 formed on the outer circumferential side surface;
A backfire prevention net 24 is integrated with a fastening member 25.

Reference numeral 26 denotes a fastening material that is screwed onto the outer wall of the heat receiving section 3 of the vaporizing cylinder 1 so as to be able to move forward and backward. When the fastening material 26 enters, it bites into the concave groove 22 of the fluid regulating section 23 and fixes the burner section 17, and when it is retreated, the fastening material 26 fixes the burner section 17. The fluid 23 is separated from the groove 22 and the burner section 17 is separated from the vaporizing cylinder 1.
27 connects the lower part of the vaporizing cylinder 1 and the heating device 5 to the space 2
A pot-shaped heat insulating tube formed of a thin plate that maintains and covers a heat shield 8 has a mounting protrusion 4 placed on a flange 29 at the upper end, and the flange 29 is detachably attached to a combustion chamber 31 with a set screw 30.

Reference numeral 32 denotes a nozzle body which connects the fuel supply device 33 and a solenoid valve 34 that opens when energized and closes when energization is stopped via a connecting pipe 35 to form fuel into particles or mist, and is opposed to the vaporizer cylinder 1 .

Reference numeral 36 denotes an air passage in which a combustion fan 37 for supplying combustion air to the vaporization cylinder 1 is installed, and the nozzle portion 38 is connected to the vaporization cylinder 1. A damper 39 is provided in the air passage 36 on the inlet side of the combustion fan 37 and has an opening/closing angle of 0 to 90 degrees.

40 is the air passage 3 on the outlet side from the combustion fan 37
A branch pipe branched from 6 is connected to the fuel supply device 33, and the combustion air, which is partially pressured according to the opening/closing degree of the damper 39, is guided and loaded as static pressure on the fuel surface, and this static pressure causes the fuel to be The amount of air supplied to the nozzle body 32 is proportional to the amount of combustion air.

Reference numeral 41 denotes a single-axis firepower adjustment handle integrated with the damper 39, which closes the power switch 42 when rotated by a certain angle from the zero position, and closes the start switch 43 when pressed.

Reference numeral 44 denotes a cartridge type fuel tank, which can be attached to and detached from the fuel supply device 33 in a sealed manner.

Reference numeral 45 denotes an igniter that discharges a spark when the heating device 51 heats the vaporizer cylinder 1 to a set temperature.

46 is a flame sensor that detects the combustion state.
47 is a hot air fan provided at the rear of the combustion chamber 31.

<Effects of the invention> According to this invention, while having the great advantages of the semiconductor element heating element and the metal heating element, the start-up temperature is just about 2 minutes after operation, and the whole is compact and inexpensive.

In particular, since the semiconductor element heating element is located inside, the temperature inside the vaporization cylinder is reliably captured, and thereby heating or heating can be quickly and efficiently controlled.

Moreover, since each heating element maintains a space in which there is no thermal interference with each other, the detection operation of the semiconductor element heating element is not disturbed at all, and reliable temperature control can be performed.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an embodiment of this invention, and FIG. 2 is an enlarged sectional view of the same vaporizing cylinder. DESCRIPTION OF SYMBOLS 1... Vaporization tube, 5... Heating device, 8... Semiconductor element heating element, 11... Spacing, 13... Metal heating element, 17... Burner part.

Claims (1)

[Scope of utility model registration request] In a device in which a heating device 5 is attached to the outside of the vaporization cylinder 1 and combustion air and fuel are supplied into the vaporization cylinder 1 to create a mixture and burn it in the burner section 17, the heating device 5 is self-thermal controlled. A semiconductor element heating element 8 is located inside, and a metal heating element 13 that is switched and controlled by the semiconductor element heating element 8 is positioned outside while maintaining a space 11 that does not thermally interfere with the semiconductor element heating element 8. A vaporizing oil burning appliance characterized by comprising both.