CN201561459U - An infrared gas burner - Google Patents

Abstract

An improved infrared gas burner, the ignition structure system (9) composed of ignition needle (4), ignition bracket (5), and ignition nozzle (6) is placed in the central ignition channel of the infrared gas burner (2), and fixedly installed on the bottom shell of the cooker by installing the fixing bracket (10), there is an ignition stabilizing flame cover (11) directly in front of the ignition bracket (5) and the ignition nozzle (6), to prevent ignition Time to ignite the flame away from the flame. The ignition nozzle (6) placed in the center fire passage (2) faces the direction of the burning plate surface of the infrared gas burner (1) to ignite the infrared burner. Since the ignition device and the ignition device are placed in the central ignition channel (2) of this burner structure, the ignition flame will not drift or drift toward the non-combustion plate surface, and there will be no flame separation phenomenon, and the infrared gas can be ignited reliably burner. It has the advantages of stable ignition flame, fixed ignition direction, centralized structure, safety and reliability.

Description

An infrared gas burner

Technical field

The utility model relates to the improvement of the household gas cooker, in particular to the improvement of the ignition structure of the burner of the embedded household infrared gas cooker.

Background technique

With the improvement of people's living standards, users generally accept embedded gas cookers. Due to the superior performance of infrared embedded gas cookers, such as energy saving, environmental protection, cleanliness, safety and reliability, the products are gradually and widely selected by consumers. Because the burner of the infrared cooker adopts a large primary air coefficient, it is difficult to ignite the fuel-air mixture escaped from the fire hole directly with a pulse electric spark during ignition, and it is easy to cause deflagration. Generally, an ignition burner is used to ignite the main burner. Fire burners, using a continuous pulse electric spark. In order to meet the aesthetic and sealing requirements of the cooktop, the ignition burner is installed at the bottom of the infrared main fire burner, and adopts a certain upward elevation angle. The ignition flame enters the central channel of the main fire burner from the bottom surface through the refraction of the fire guide plate, and reaches the main fire hole after passing through. There are following defects in this ignition structure and working method:

(1) At the moment when the ignition burner is ignited, the flame rushes out and touches the fire guide plate, which is prone to backfire, and burns in front of the ignition nozzle. The transmission distance is not enough to reach the main fire hole or the main fire plate, resulting in poor ignition or deflagration.

(2) Due to the limited diameter of the central channel, there is a certain resistance to the propagation of the ignition flame. When the gas pressure in the pipe network is low, the ignition flame cannot overcome the resistance and reach the main fire hole, resulting in misfire. When the gas pressure of the pipeline network is high, the air in the central channel is quickly exhausted by the smoke generated by the ignition flame, and the lack of oxygen in the channel restricts the transmission of the flame.

(3) Due to the small central channel of the pilot fire, the ignition flame is usually relatively large. The gas and air mixture of the main fire burner reaches the surface of the main combustion fire hole lagging behind, and the concentration is low. When the ignition moment cannot be ignited, the pilot flame will be It will lead to the bottom of the burner. Due to the inertia of the flame, the pilot flame cannot be kept on the surface or side of the main combustion fire hole, and the burner cannot be ignited normally.

(4) The functional structure of ignition and extinguishment adopts different fixing devices to be respectively assembled on the cooker, and the product structure is complex and the assembly is cumbersome.

Contents of the invention

The purpose of this utility model is to improve the ignition and ignition structure of the burner, and design a new integrated structure for ignition and extinguishment of the infrared burner, so that the ignition reliability of the product is high, the structure is centralized and simplified, and the fluctuation of the gas pressure in the pipe network Adaptable.

The utility model adopts following technical scheme to realize:

An infrared gas burner, comprising an infrared gas burner (1) with a central ignition channel (2), a flame sensor (3), an ignition needle (4), an ignition ignition bracket (5), an ignition nozzle (6), Composed of a gas valve body (7) and a pulse controller (8), the ignition and ignition structural system (9) consisting of an ignition needle (4), an ignition bracket (5) and an ignition nozzle (6) is placed in an infrared gas burner (1) in the central fire passage (2), and installed on the mounting bracket (10), fixedly installed on the bottom shell of the cooking range by the mounting bracket (10), between the ignition ignition bracket (5) and the ignition nozzle ( 6) There is an ignition stable flame cover (11) directly in front of it, to prevent the ignition flame from the flame when preventing the ignition. The ignition nozzle (6) placed in the center fire passage (2) faces the direction of the burning plate surface of the infrared gas burner (1) to ignite the infrared burner. The flame sensor (3) can be an ion detection type flame sensor or a thermocouple type flame sensor. In this way, since both the ignition device and the ignition device are placed in the central ignition channel (2) during ignition, the ignition flame will not drift or drift towards the non-combustion plate surface, and the ignition flame will not have a phenomenon of flame separation, so it can be ignited reliably gas burner.

The utility model has the advantages of stable ignition flame, fixed ignition direction, centralized structure, safety and reliability.

Description of drawings

Provide embodiment below, the utility model is described further.

Fig. 1 is a front sectional schematic view of the utility model.

Fig. 2 is a schematic side sectional view of the structural components in the central fire passage (2) of the present invention.

Detailed ways

Embodiment 1 (seeing Fig. 1, Fig. 2):

An infrared gas burner, comprising an infrared gas burner (1) with a central ignition channel (2), a flame sensor (3), an ignition needle (4), an ignition ignition bracket (5), an ignition nozzle (6), Composed of gas valve body (7), pulse controller (8), point ignition structure system (9) composed of ignition needle (4), ignition ignition support (5), ignition nozzle (6) is placed in the infrared gas burner (1) in the central fire passage (2), and installed on the mounting bracket (10), fixedly installed on the bottom shell of the cooking range by the mounting bracket (10), between the ignition ignition bracket (5) and the ignition nozzle ( 6) There is an ignition stable flame cover (11) directly in front of it, to prevent the ignition flame from the flame when preventing the ignition. The ignition nozzle (6) placed in the center fire passage (2) faces the direction of the burning plate surface of the infrared gas burner (1) to ignite the infrared burner. The flame sensor (3) is an ion detection type flame sensor. In this way, since both the ignition device and the ignition device are placed in the central ignition channel (2) during ignition, the ignition flame will not drift or drift toward the non-combustion plate surface, and the ignition flame will not have a flame-leaving phenomenon, so it can be ignited reliably gas burner. The structure has the advantages of stable ignition flame, fixed ignition direction, centralized structure, safety and reliability.

Embodiment 2 (seeing Fig. 1, Fig. 2):

With embodiment 1, only flame sensor (3) is a thermocouple type flame sensor.

Claims (3)

1. An infrared gas burner is composed of an infrared gas burner (1), a flame sensor (3), an ignition needle (4), an ignition ignition support (5), and an ignition nozzle (6) with a central ignition channel (2). ), a gas valve body (7), and a pulse controller (8), which are characterized in that the ignition and ignition structure system (9) composed of an ignition needle (4), an ignition and ignition bracket (5), and an ignition nozzle (6) is placed In the central fire passage (2) of the infrared gas burner (1), and installed on the mounting bracket (10), fixedly installed on the bottom shell of the cooker through the mounting bracket (10), on the ignition bracket (5 ) and ignition nozzle (6) directly in front of there is an ignition stable flame cover (11), to prevent the ignition flame from the flame when igniting. 2. The gas burner according to claim 1, characterized in that the ignition nozzle (6) faces the direction of the combustion plate of the infrared gas burner (1) to ignite the infrared burner. 3. The gas burner according to claim 1, characterized in that the flame sensor (3) can be an ion detection type flame sensor, or a thermocouple type flame sensor.

Images