JPS6130022Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a kerosene vaporization burner that does not require electrical preheating and can shift to vaporization combustion in a short time. A burner of this type as shown in FIG. 1 has already been devised. To briefly explain this burner, it is ``a rotary shaft 34 is inserted into the center of a combustion tube 33 in which a gas nozzle hole 31 is bored in the inner circumferential surface 30 and a gas chamber 32 is formed. The cup-shaped vaporization tube 35 and the vaporization tube extension 35' are rotatably positioned with a slight gap 37 between the open end 36 provided at the center of the gas chamber 32 and the vaporization tube interior 35a and the gas chamber. 32, a blower tube 38 is inserted through the gas chamber 32 and the inside 35a of the vaporization tube, and a kerosene spray gap 39 is provided between the vaporization tube 35 and the vaporization tube extension 35'. .

To explain the function of this burner, first, the rotating shaft 3
4 rotates, the vaporizer tube 35 and the kerosene diffuser 40 rotate together. Therefore, at the same time, kerosene is supplied from the oil pipe 41 onto the diffuser 40, and at the same time,
When forced air is blown into the inside of the vaporization cylinder 35a through the kerosene tube 9, the kerosene is diffused on the diffuser 40, and then moved to the inner surface of the vaporization cylinder 35, and is completely diffused while descending into the kerosene spray gap. 39 becomes fine particles and is sprayed and scattered onto the inner circumferential surface 30 of the combustion tube 33, and the igniter 42
Ignition causes raw combustion. Since part A of the forced air is blown out from the hole in the seat plate 33', raw combustion is promoted.

In addition, since the vaporizer tube 35 is intensely heated by the start of this raw combustion, the kerosene that diffuses and migrates along the inner surface of the vaporizer tube 35 is quickly evaporated and vaporized to become kerosene gas, which is mixed with the forced air C and passes through the gas passage. After being fed under pressure to the gas chamber 32 through the inside 35a of the vaporization cylinder 43, the gas becomes a complete mixture and is transferred to the combustion cylinder 33.
The gas is vaporized and burned through the gas blowhole 31. After the vaporization combustion starts, the vaporization cylinder 35 is heated even more, so that the vaporization combustion can be continued for a long period of time.

However, this burner has a so-called gap 37 in the gas passage 43 between the open end 36 of the gas chamber 32 of the combustion tube 33 and the carburetor extension 35', so even if forced air Even if attempts were made to prevent gas leakage etc. from part B of the gap 37, depending on the wind pressure, kerosene gas or carbon monoxide could blow out from this gap 37.

As a solution to this problem, it is possible to reduce the gap, but if this is set small,
If the carburetor tube extension 35' and the combustion tube seat plate 33' are thermally strained, the carburetor tube 35 may become locked, which is undesirable.

Therefore, the purpose of the present invention is to use a kerosene supply nozzle to spray kerosene into a vaporizer cylinder and vaporize it, and to substantially seal the gas passage (gas chamber) to prevent gas leakage. The purpose is to prevent the generation of carbon monoxide.

Hereinafter, an embodiment of the present invention will be explained with reference to FIG. First, 1 is a combustion cylinder for preheating, which has air holes 2 formed on the entire circumferential side surface of the inner cylinder part 11.
2, an air chamber 3 is formed between the outer cylinder part 12 and the inner cylinder part 11, and an air duct 5 in which a blower 4 is installed is communicated with the air chamber 3, so that combustion air is It should be introduced into room 3. Reference numeral 6 denotes a pot-shaped vaporizing cylinder, the lower end of which is inserted into the open end (opening) 7 of the inner cylinder part provided at the bottom of the preheating combustion cylinder 1, arranged and fixed, and the upper end is provided with a heat recovery flange 6.
1 is integrally formed. In addition, a first through hole 8 is bored in the side wall portion 62 of the vaporizing cylinder 6 so as to face the air chamber 3.
The air guide cylinder 9 fixed to the side wall of the inner cylinder part 11 is inserted, and the air in the air chamber 3 flows into the gas chamber 1 inside the vaporizer cylinder 6.
Make it possible to force feed to 0. Further, a second through hole 13 is bored at the lower end of the bottom wall portion 63, and the second through hole 13 is connected to one end of the kerosene flow passage 14 communicating with the inner cylinder portion 11 of the preheating combustion cylinder 1. To communicate (correspond). In this way, the gas chamber 10 communicates with the air chamber 3 through the second through hole 13 and with the inner cylinder portion 11 via the kerosene flow passage 14.

Further, a mixing cylinder 15 is placed on the upper end of the vaporizing cylinder 6, and a burner body 17 having a burner port 16 perforated around the entire circumference is further placed on top of the mixing cylinder 15. Further, an ignition heater 18 is passed through the preheating combustion cylinder 1, and its heat generating part is exposed near the bottom wall of the inner cylinder part 11. Reference numeral 19 designates an electromagnetic pump, the oil feed pipe 20 of which is inserted through the air guide cylinder 9 and the first through hole 8, and a kerosene supply nozzle 21 is connected to the tip of the oil feed pipe 20. That is, the kerosene supply nozzle 21 is inserted into the gas chamber 10.
Note that 23 is a flame detection rod opposed to the flame port 16 of the burner body 17, and 24 is a kerosene pumping pipe connected to the electromagnetic pump 19.

In the embodiment configured as described above, when the pressure pump 19 and the blower 4 are driven, kerosene flows from the kerosene pumping pipe 24 to the oil supply pipe 20, and then passes through the kerosene supply nozzle inserted into the first through hole 8 of the vaporizer cylinder 6. 21
The gas is injected toward the side wall portion 62 of the vaporization cylinder 6. On the other hand, the air forced by the blower 4 is passed through the air hole 2 formed in the inner cylinder part 11 of the preheating combustion cylinder 1.
At the same time, the air is ejected from the air guide tube 9 and the first
The gas is ejected into the gas chamber 10 of the vaporizer cylinder 6 through the through hole 8 . At this time, the vaporizer cylinder 6 is not heated, so
The sprayed kerosene flows from the side wall portion 62 of the vaporizing tube 6 through the bottom wall portion 63 and flows down from the second through hole 13. Since the second through hole 13 and one end of the kerosene flow path 14 communicate with each other as shown in the figure, kerosene flows through the kerosene flow path 1.
4 to the bottom wall of the inner cylinder portion 11. Therefore, when the ignition heater 18 is energized at this time, the kerosene is evaporated and ignited, and mixed with air from the air hole 2 formed in the inner cylinder part 11 of the preheating combustion cylinder 1, and preheating combustion is started. Ru.

Moreover, this combustion heats the vaporization tube 6 and the preheating combustion tube 1. As a result, the kerosene sprayed from the kerosene supply nozzle 21 gradually gasifies, and this kerosene gas temporarily stays in the gas chamber 10, but the air flowing in from the first through hole 8 The mixed gas is prevented from leaking through the through holes 8 of 1, and is discharged to the outside through the mixing tube 15 and the flame port 16 provided around the entire circumference of the burner body 17. Furthermore, since air is flowing into the gas chamber 10 from the air chamber 3 through the second through hole 13,
Kerosene gas does not leak from the second through hole 13 to the air chamber 3 and the inner cylinder part 11. As the amount of kerosene gasified in the gas chamber 10 of the vaporizer cylinder 6 increases,
When the mixed gas enters the combustion range, the mixed gas ejected from the flame port 16 of the burner body 17 is ignited by the preheated combustion flame, and premixed combustion starts at the flame port 16 portion.

As a result, the heat recovery flange 61 of the vaporization tube 6 is heated, and the side wall portion 62 of the vaporization tube 6 is also heated at the same time, so that there is no combustion in the preheating combustion tube 1, and only vaporization combustion occurs in the flame port 16. Thereafter, heat recovery is performed only by this combustion, and stable vaporization combustion is continuously maintained.

Furthermore, during vaporization combustion, kerosene gas is generated in the gas chamber 10 that is substantially sealed by the vaporization tube 6, that is, it enters the gas chamber through the first through hole 8 and the second through hole 13. Since air is flowing in from the air chamber 3, all of the kerosene gas flows into the mixing tube 15.
to the burner body 17, and the flame port 1 of the burner body 17
There is no leakage from anything other than 6. Therefore, in addition to gas leakage, the generation of carbon monoxide is also suppressed.

As described above, in the kerosene vaporizing burner of the present invention, the air chamber 3 is formed by the inner cylinder part 11 and the outer cylinder part 12, the air hole 2 is bored in the side surface of the inner cylinder part 11, and the inner cylinder part 11 includes a combustion cylinder 1 for preheating with an open end (opening) 7 formed on the bottom surface, and a gas chamber 10, the lower end is inserted into the open end 7, and the inner cylinder part 11
a burner body 17 placed on the upper part of the vaporizer cylinder 6 and having a burner port 16 formed therein;
and a first through hole 8 on the side surface of the vaporization cylinder 6;
A second through hole 13 is formed at the lower end, one end communicates with the second through hole 13, and the other end communicates with the inner cylindrical portion 11.
A kerosene flow passage 14 connected to the gas chamber 10 is provided, and the gas chamber 10 communicates with the inner cylinder part 11 and the air chamber 3, and the gas chamber 3 communicates with the air chamber 3 through the first through hole 8. Since the kerosene supply nozzle is inserted into the gas chamber 10 through the air guide tube 9, gas leakage and the generation of odor and carbon monoxide due to this can be prevented. There are other effects.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of a conventional kerosene vaporizing burner, and FIG. 2 is a schematic sectional view of a kerosene vaporizing burner according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Combustion tube for preheating, 2... Air hole, 3... Air chamber, 6... Vaporization tube, 8... Through hole, 10 Gas chamber, 11... Inner cylinder part, 13... Through hole, 14 ……
Kerosene flow path, 16... flame mouth, 17... burner body,
21... Kerosene supply nozzle.

Claims (1)

[Scope of utility model registration request] An air chamber is formed by the inner cylinder part and the outer cylinder part,
An air hole is formed in the side surface of the inner cylinder, and a combustion cylinder for preheating has an opening formed in the bottom of the inner cylinder, and a gas chamber, the lower end of which is inserted into the opening. It has a vaporizing tube arranged and fixed to the cylinder part, and a burner body placed on the upper part of the vaporizing tube and having a burner opening formed therein, a first through hole in the side surface of the vaporizing tube, and a first through hole at the lower end of the vaporizing tube. A second through hole is formed in the portion,
A kerosene flow path is provided, one end of which communicates with the second through hole and the other end of which is connected to the inner tube, the gas chamber communicates with the inner tube and the air chamber, and the gas chamber communicates with the inner tube and the air chamber. A kerosene vaporizing burner characterized in that the gas chamber is communicated with a guide passage communicating with the air chamber through the first through hole, and a kerosene supply nozzle is inserted into the gas chamber through the guide passage. .