JPH04320704A - Burner - Google Patents

Abstract

PURPOSE:To provide a burner which has a variable width in fuel consumption in one burner that corresponds to that in a plurality of burners in a burner which is used for a hot water supplier or a space heater and uses kerosene as fuel. CONSTITUTION:The subject burner consists of burner heads 8, carburetor 1 that is connected to the burner heads 8 and divided by partition walls, nozzles 6 that communicate with a fuel supplier that enters the inside of the carburetor 1, and a case 14 that covers the burner heads 8, the carburetor 1, and a mixing chamber 12. The carburetor 1 and the burner heads 8 are provided above the mixing chambers 12 that have a bottom and are box-shaped and divided by the partition walls, and the burner heads 8 are divided by the partition walls of the mixing chambers 12. And the rate of division of the burner heads 8 by the partition walls of the mixing chambers 12 and the rate of division of the carburetor are made to be not the same. It is, therefore, possible to provide a variable width of the quantity of fuel consumption by one burner that stands comparison with a plurality of burners.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion device using petroleum as fuel for use in water heaters, space heaters, etc.

0002

2. Description of the Related Art As shown in FIG. 3, a conventional combustion apparatus of this type has two burners, that is, two vaporization/combustion paths, in order to have a wide range of variation in combustion amount. To simplify the explanation, mainly one side will be explained.

Reference numeral 1 denotes a carburetor with a built-in heater 2, and 3 a nozzle communicating with a fuel supply device 4, which faces into the carburetor 1. 5 is a mixing chamber provided at a certain distance above the vaporizer 1; 6 is a burner head provided above the mixing chamber 5; flame port 7 and secondary air port 8 are arranged alternately. It is located in 9 is an igniter facing the flame outlet 7; 10
is a blower, and the combustion air is passed through the air chamber 11 to the vaporizer 1.
It is divided into an inside part and an outside part of the vaporizer 1. A portion of the air sent outside the vaporizer 1 is sent into the mixing chamber 5 through between the vaporizer 1 and the mixing chamber 5, and a portion of the air is sent into the mixing chamber 5.
The secondary air port 8 of the burner head 6 passes through the outside of the burner head 6.
It was supposed to be sent to

[0004] In the above configuration, the heater 2 is energized,
When a predetermined temperature is reached, the fuel supply device 4 and the blower 10 are operated, and the fuel is ejected from the nozzle 3 and becomes vaporized gas in the vaporizer 1. A part of the combustion air is sent through the air chamber 11 into the vaporizer 1, where it becomes vaporization air and is mixed with vaporized gas to form an air-fuel mixture. The rest is sent outside the vaporizer 1, and a part of it passes between the vaporizer 1 and the mixing chamber 5 and is sent into the mixing chamber 5, where it is further mixed with the air-fuel mixture and is then sent to the flame port 7 of the burner head 6.
More erupts. The remaining air passes outside the mixing chamber 5 and is blown out from the secondary air port 8 of the burner head 6. The air-fuel mixture ejected from the flame port 7 is ignited by the igniter 9 to form a combustion flame, and the secondary air ejected from the secondary air port 8 stabilizes the combustion flame.

[0005] When varying the combustion amount, when the maximum combustion amount is required, each burner is set to the maximum and both burners are fired, and when the combustion amount is to be reduced, each combustion amount is lowered. When the lower limit of each combustion amount is reached, combustion in one burner is stopped and the other burner is burnt at its maximum combustion amount. To further reduce the combustion amount, lower the combustion amount of the other burner. When the minimum amount of combustion was required, the amount of combustion of the other burner was set to the minimum. In other words, when the maximum amount of combustion is required, the combustion amount of two burners is set to the maximum and two burners are burned, and when the minimum amount of combustion is required, the combustion amount of one burner is set to the minimum and one burner is burned. It was like that. Therefore, if the variable range of the combustion amount of one burner is, for example, 1/3, the variable range of the combustion device is 1/6.

[0006]

However, in the above configuration, the variable width of the combustion device is multiplied by the number of burners of one burner, and in order to increase the variable width of the combustion device, the number of burners must be increased. The problem is that the configuration becomes complicated and expensive.

[0007] The present invention solves this conventional problem by dividing the vaporization section, mixing section, and combustion section into one burner.
The purpose is to use one simple and inexpensive burner to have the same variable width as multiple burners, and to expand the variable width.

[0008]

[Means for Solving the Problems] In order to solve the above problems, the combustion apparatus of the present invention includes a burner head, a vaporizer connected to the burner head and divided by a partition wall, and a combustion device facing into the vaporizer. A nozzle communicating with a fuel supply device, the vaporizer, and the burner head are provided in the upper part of a mixing chamber divided by a bottomed box-shaped partition wall, and the burner head is divided by the partition wall of the mixing chamber, and the burner head is separated by the partition wall of the mixing chamber. It consists of a burner head, the vaporizer, and a case that covers the mixing chamber. Also,
In the present invention, the ratio of dividing the burner head by the partition wall of the mixing chamber and the ratio of dividing the burner head by the partition wall of the vaporizer are not equal.

[0009]

[Operation] According to the above-described structure, the present invention has a burner composed of one vaporizer, mixing chamber, and burner head, which is divided into a plurality of parts by the partition wall of the vaporizer and the partition wall of the mixing chamber.
The combustion amount can be easily varied. Also, if the above-mentioned division ratio is not equal, for example, the division ratio is 2:3.
If the fuel supply ratio of the fuel supply device is also set to 2:3 and the variable range of each combustion amount is 1/3, the maximum combustion amount will be the maximum combustion amount of each, and the minimum combustion amount will be the one with the smaller split ratio. By burning only the minimum combustion amount of this burner, the variable range of combustion amount of this burner is (2/5 + 3/5): 2/15 =
The ratio is 7.5:1. Therefore, with one burner having an inexpensive and simple configuration, it is possible to obtain the same combustion amount variable range as the conventional two burners, and to expand the variable range.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a vaporizer with a built-in heater 2, which is divided into two by a vaporizer partition 3. As shown in FIG. Reference numeral 4 denotes a heat-receiving wall provided at the upper part of the vaporizer 1 to receive combustion heat, and 5 a temperature detector of the vaporizer 1, which controls whether or not the heater 2 is energized. A nozzle 6 communicates with a fuel supply device 7 and faces into the carburetor 1. 8 is a burner head connected to the vaporizer 1 and includes a flame port 9 and a secondary air port 10.
are arranged alternately. 11 is an igniter facing the flame opening; 12 is a mixing chamber provided below the vaporizer 1 and the burner head 8; this mixing chamber 12 is connected to the mixing chamber partition wall 13;
It is divided into two pieces in the longitudinal direction. The mixing chamber partition wall 13 also divides the burner head 8. 14 is a case, 15 is a blower, and combustion air is supplied to this case 14.
and is branched into the inside of the vaporizer 1 and the outside of the vaporizer 1. The combustion air sent into the carburetor 1 is used as primary air, and the combustion air sent outside the carburetor 1 is used as secondary air to fill the gap between the case 14, the carburetor, and the burner head 8. The air is then sent to the secondary air port 10.

In the above configuration, the heater 2 is energized,
When the temperature detector 5 detects a predetermined temperature, the fuel supply device 7
and the blower 15 is operated. The fuel is injected into the carburetor 1 divided by the carburetor partition wall 3 from nozzles communicating with the fuel supply device 7, and becomes vaporized gas. Combustion air is sent into the case 14 from the blower 10, and some of it is sent as primary air into each of the vaporizers 1, which are divided by the vaporizer partition wall 3, where it is mixed with vaporized gas to form a premixed gas, which is then sent to the mixing chamber partition wall. 1
Mixing chamber 1
2, the mixture is promoted and ejected from the flame port 9 of the burner head 8. Other combustion air is used as secondary air in case 1.
4, the vaporizer 1, and the burner head 8, and are sent to the secondary air port 10. The premixture ejected from the flame port 9 is ignited by the igniter 11 to form a combustion flame, and the secondary air ejected from the secondary air port 10 stabilizes the combustion flame. The combustion heat of this combustion flame is received by the heat receiving wall 4 of the vaporizer 1, and when the vaporizer 1 reaches a predetermined temperature, the temperature detector 5 stops energizing the heater 2, and the vaporizer 1 becomes lower than the predetermined temperature. Then, energization of the heater 2 is started, and energization and de-energization of the heater 2 are repeated.

[0012] Here, the burner consisting of one vaporizer, mixing chamber, and burner head is divided by the partition wall 3 of the vaporizer 1 and the partition wall 13 of the mixing chamber, and the division ratio is not equal. Therefore, for example, if the split ratio is 2:3, the fuel supply ratio of the fuel supply system is also 2:3, and the variable range of each combustion amount is 1/3, the maximum combustion amount will be the maximum combustion amount of each burner. By burning only the minimum combustion amount of the burner with the smaller split ratio, the variable range of the combustion amount of this burner becomes 7.5:1. Therefore, with one burner that is inexpensive and has a simple configuration, it is possible to obtain the same combustion amount variable range as the conventional two burners, and to expand the variable range. Note that even if the division ratio in the above embodiment is made equal, the same effect as the present invention can be expected.

[0013]

[Effects of the Invention] As described above, according to the combustion apparatus of the present invention, a burner composed of a single vaporizer, a mixing chamber, and a burner head is divided into a plurality of parts by the partition wall of the vaporizer and the partition wall of the mixing chamber. Therefore, the combustion amount can be easily varied. In addition, since the division ratio is made to be unequal, for example, if the division ratio is set to 2:3, the fuel supply amount ratio of the fuel supply device is also 2:3.
:3 and the variable width of each combustion amount is 1/3, the maximum combustion amount will be burned at the maximum combustion amount of each, and the minimum combustion amount will be burned only at the minimum combustion amount of the smaller split ratio. Therefore, the variable range of the combustion amount of this burner is 7.5:1. Therefore, with one burner that is inexpensive and has a simple configuration, it is possible to obtain the same variable range of combustion amount as with the conventional two burners, and also to expand the variable range.

[Brief explanation of the drawing]

FIG. 1: A cross-sectional view of the main parts of a combustion device in an embodiment of the present invention.

[Figure 2] Longitudinal cross-sectional view

[Figure 3] Longitudinal cross-sectional view of main parts of a conventional combustion device

[Explanation of symbols]

1. Vaporizer 2 Heater 3. Vaporizer bulkhead 6 Nozzle 8 Burner head 12 Mixing chamber 13　Mixing chamber partition wall 14 Case

Claims (2)

[Claims] 1. A burner head, a carburetor connected to the burner head and divided into a plurality of parts by a partition wall, a nozzle facing into the carburetor and communicating with a fuel supply device, the carburetor and the burner A combustion device comprising a head provided above a mixing chamber divided by a partition wall, the burner head divided by the partition wall of the mixing chamber, and a case covering the burner head, the vaporizer, and the mixing chamber. 2. The combustion apparatus according to claim 1, wherein the ratio of dividing the burner head by the partition wall of the mixing chamber and the ratio of dividing the burner head by the partition wall of the vaporizer are not equal.