CN201166364Y - gas burner - Google Patents

Abstract

The utility model provides a gas burner. The upper part of the bottom cavity is connected with the main gas, air mixed gas conduit and the main burner casing. The main burner inner ring is installed on the casing, and there are combustion holes on it. For the burner, the main gas and air preheating mixing cavity is formed between the inner ring of the main burner and the outer shell of the main burner, and a spoiler is installed in the mixing cavity of the main gas and air; The duty gas inlet pipe is connected with the duty air inlet. On one side of the bottom chamber, the duty gas inlet pipe and the main gas inlet pipe are installed. inside the mixing chamber. The utility model has the characteristics of little external interference, low flame height, high temperature, sufficient combustion, high heat utilization rate, energy saving and safety. It is suitable for burning various gas appliances to obtain heat.

Description

gas burner

technical field

The utility model provides a combustion heating device in the field of thermal engineering, in particular a gas burner.

Background technique

Before the utility model was proposed, there was a kind of gas burner, its structure was: on the bottom cavity, a burner was connected through a gas and air mixing tube, a burner on duty was arranged on one side of the burner, and the gas and air mixing tube A gas inlet pipe is installed inside the furnace, and its upper end is opened as a gas injection hole, and the gas and air are supplied to the burner in the same direction for combustion. The disadvantages of this kind of burner are: 1. The ejection hole of the gas inlet pipe is in the same direction as the air inlet direction, and the mixing property is poor, resulting in uneven mixing, which affects the combustion performance, thereby reducing the gas combustion efficiency; 2. The on-duty burner installation On the side of the burner, it is easy to be disturbed by the external airflow, and it is also easy to turn off the flame. Also need to relight the burner on duty when relighting the burner head again, troublesome operation, poor safety; It is easy to concentrate, the flame height is high, and the combustion temperature is low, resulting in low thermal efficiency. 4. Tempering is easy to occur, resulting in damage to air supply and air supply equipment, and also easy to cause safety accidents.

Contents of the invention

In order to overcome the shortcomings of the existing gas burner, the utility model provides a novel gas burner. The burner mainly achieves full combustion of gas, increases flame temperature, improves safety and reduces damage to combustion parts by adding a spoiler in the gas and air mixing chamber and changing the angle design of the gas injection hole and the position of the on-duty burner. Damaged technical issues.

The solution of the utility model to solve the technical problem is: an air inlet is provided on one side of the bottom cavity, and the main gas, air mixture conduit and the main burner casing are connected on the upper part of the bottom cavity, and the main burner casing and the main burner The inner ring of the main burner is installed in the matching ring mouth of the ring. Several combustion holes are arranged on the ring wall of the inner ring of the main burner. The on-duty burner is installed in the solidifier, and the main gas and air preheating mixing chamber is formed between the inner ring of the main burner and the outer shell of the main burner, and is connected with the main gas and air mixing chamber through a spoiler;

The on-duty burner is connected with the on-duty gas inlet pipe and the on-duty air inlet through the on-duty gas and air mixture ducts, and the on-duty gas inlet pipe is installed on one side of the bottom cavity;

The combustion holes set on the inner ring wall of the burner can be arranged in three rows in the vertical direction to the ring wall, the horizontal angles from top to bottom are 20°, 25° and 5° respectively, and the angles between the holes and the center of the circle are respectively : 15°, 15° and 0°.

A main gas inlet pipe is also installed on one side of the bottom cavity, and several main gas injection holes are horizontally arranged on its upper end, and the main gas injection holes are placed in the main gas and air mixing chamber.

The included angle a between the combustion hole and the bottom plane on the ring wall of the inner ring of the main burner is between 0° and 30°, and the included angle b between the line connecting the center of the circle and the center of the circle is between 0° and 30°.

In the center of the spoiler, there are duty gas and air mixture duct holes, and a number of blades arranged radially and obliquely are arranged on the outer periphery of the spoiler, and an air passage cavity is formed between the blades.

The positive effects are: 1. Since the main gas inlet pipe is provided with a horizontal main gas injection hole, it is conducive to the full mixing of gas and air; 2. Since the duty air inlet is located at the lower part of the duty gas inlet pipe and placed The bottom chamber is conducive to the entry and mixing of fresh air; 3. Due to the turbulence installed in the main gas and air mixing chamber, the mixture of gas and air can be further dispersed and mixed; 4. Since the main burner There is a main gas and air preheating mixing chamber between the shell and the inner ring of the main burner, which is beneficial to the preheating and full combustion of the gas and air mixer; 5. Since the on-duty burner is located in the middle of the inner ring of the main burner and There is a burner guard on duty on the outside, which can ensure that its combustion will not be disturbed by air flow disturbance, and it is not easy to extinguish the flame to ensure its safety. Compared with the setting on the outside, it has a longer service life and prevents burnout; The angle can realize the rotation and overlap of the flame, thereby reducing the height of the flame, increasing the temperature of the flame and preventing the inner ring of the burner from being burned, and improving the service life. Therefore, the utility model has the characteristics of less external interference, low flame height, high temperature, sufficient combustion, high heat utilization rate, energy saving and safety. It is suitable for burning various gas appliances to obtain heat.

Description of drawings

Fig. 1 is the structural diagram of the utility model burner

Fig. 2 is the angle state diagram of the bottom plane of the combustion hole of the present invention

Fig. 3 is a state diagram of the included angle between the lines connecting the centers of the combustion holes of the utility model

Figure 4 is a schematic diagram of the utility model spoiler

In the figure, 1. Bottom cavity, 2. Air inlet, 3. Main gas inlet pipe, 3.1. Main gas outlet hole, 4. Duty gas inlet pipe, 4.1. Duty air inlet, 4.2. Duty gas, air mixture duct , 4.3. On-duty burner fastener, 4.4. On-duty burner, 5. Main gas and air mixture duct, 5.1. Main gas and air mixing chamber, 5.2. Spoiler, 5.2.1. Blade plate, 5.2. 2. Passing gas chamber, 5.2.3. Duty gas, air mixture duct hole, 5.3. Main gas, air preheating mixing chamber, 6. Main burner shell, 7. Main burner inner ring, 7.1. Main burner The outer shell matches the inner ring of the main burner, 7.2. The combustion hole, 8. The guard of the burner on duty.

Detailed ways

As shown in Figure 1, an air inlet 2 is provided on one side of the bottom cavity 1, and the main gas and air mixture conduit 5 and the main burner casing 6 are connected to the upper part of the bottom cavity. The inner ring 7 of the main burner is installed in the ring matching ring mouth 7.1, and several combustion holes 7.2 are arranged on the ring wall of the inner ring of the main burner. The on-duty burner 4.4 is installed through the on-duty burner fastener 4.3, the main gas and air preheating mixing chamber 5.3 is formed between the main burner inner ring and the main burner shell, and the main gas and air mixing chamber 5.1 passes through the spoiler 5.2 Connected;

The on-duty burner communicates with the on-duty gas inlet pipe 4 and the on-duty air inlet 4.1 through the on-duty gas and air mixture conduit 4.2, and the on-duty gas inlet pipe is installed on one side of the bottom cavity;

The combustion holes on the inner ring wall of the burner can be arranged in three rows in the vertical direction to the ring wall, the horizontal angles from top to bottom are 20°, 25° and 5° respectively, and the angles between the holes and the center of the circle are respectively : 15°, 15° and 0°.

One side of the bottom chamber is also equipped with a main gas inlet pipe 3, and its upper end is horizontally provided with several main gas injection holes 3.1, and the main gas injection holes are placed in the main gas and air mixing chamber 5.1.

As shown in Figure 2 and Figure 3, the angle a between the combustion hole 7.2 and the bottom plane set on the ring wall of the inner ring 7 of the main burner is between 0° and 30°, and the angle b between the line connecting the center of the circle and the center of the circle is between 0° and between 30°.

As shown in Figure 4, the center of the spoiler 5.2 is provided with duty gas and air mixture duct holes 5.2.3, and a number of blades 5.2.1 arranged radially and obliquely are arranged on its outer periphery, forming 5.2.2 over the gas cavity.

Working process of the utility model

The air inlet is connected to the blower, and the main gas inlet pipe and the on-duty gas inlet pipe are connected to the gas source.

Turn on the blower to send air into the bottom cavity, connect the gas inlet pipe on duty, ignite the burner on duty, and then connect the main gas inlet pipe, and the gas will contact and mix with the air horizontally through the main gas injection hole to form a gas-air mixture. The air mixture is further mixed through the spoiler and then reaches the main gas and air preheating mixing chamber for preheating and remixing, and then it is sprayed out through the combustion hole with a set angle, meets and ignites with the flame of the on-duty burner to form a high-temperature combustion flame. During heating, the combustion flame forms a high-temperature zone in a parabolic helical superimposition manner.

After testing, the combustion efficiency of the gas burner of the utility model is above 90%, the combustion flame height of the main burner is between 20-80mm, and the flame temperature is between 1000-1500°C, which shows that the burner has excellent performance and more energy-saving performance. good.

Claims (2)

1. The gas burner is provided with an air inlet (2) on one side of the bottom cavity (1), and the main gas and air mixture conduit (5) and the main burner casing (6) are connected to the upper part of the bottom cavity. The inner ring (7) of the main burner is installed in the matching ring mouth (7.1) of the burner shell and the inner ring of the main burner. The duty burner guard (8) is fixed at the position, and the duty burner (4.4) is installed on the ring wall of the inner plane through the duty burner fastener (4.3). Form the main gas and air preheating mixing chamber (5.3) and communicate with the main gas and air mixing chamber (5.1) through the spoiler (5.2); The on-duty burner is connected with the on-duty gas inlet pipe (4) and the on-duty air inlet (4.1) through the on-duty gas and air mixture conduit (4.2), and the on-duty gas inlet pipe is installed on one side of the bottom cavity; A main gas inlet pipe (3) is also installed on one side of the bottom cavity, and several main gas injection holes (3.1) are arranged horizontally on its upper end, and the main gas injection holes are placed in the main gas and air mixing chamber (5.1); The angle a between the combustion hole (7.2) and the bottom plane set on the ring wall of the inner ring (7) of the main burner is between 0° and 30°, and the angle b between the connecting line with the center of the circle is between 0° and 30°; In the center of the spoiler (5.2) there is an on-duty gas and air mixture duct hole (5.2.3), and on its outer periphery there are several vanes (5.2.1) arranged obliquely in a radial shape, forming Air cavity (5.2.2). 2. The burner according to claim 1, characterized in that: the combustion holes arranged on the inner ring wall of the burner can be arranged in three rows in the vertical direction to the ring wall, and the horizontal angles from top to bottom are respectively 20° , 25° and 5°, the angles between the hole and the center of the circle are: 15°, 15° and 0° respectively.

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