Ever-burning flame burner

Abstract

The technical scheme belongs to the technical field of ever-burning flame combustors, and particularly relates to an ever-burning flame combustor which comprises a nozzle, a burner body and a burner cover. The air inlet connector is provided with an air inlet channel communicated with the air outlet hole, and the air inlet channel is used for air source circulation; the air channel conversion piece is movably arranged on the air inlet connector, and the lower end of the air channel conversion piece penetrates through the air inlet channel in the radial direction; the outer diameter of the part, arranged in the air inlet channel, of the air channel conversion piece is larger than the inner diameter of the air inlet channel. The air passage conversion piece is provided with an air passage I and an air passage II which are not intersected, and the inner diameter of the air passage I is smaller than that of the air passage II; the first air channel or the second air channel can be independently communicated with the air inlet channel through the movable air channel conversion piece. The air passage I and the air passage II are perpendicular to each other; the air inlet joint at least comprises a connecting part I connected with the front end of the nozzle; the second connecting part is connected with an air source; and the switching part is provided with a mounting hole I and a mounting hole II which are oppositely arranged.

Description

Technical Field

[0001] The present technical solution relates to the technical field of pilot-flame burners, and in particular to a pilot-flame burner. Background Art

[0002] In high-power baking equipment such as integrated stoves, standing ovens or built-in ovens, there are generally high-power main burners and low-power pilot flame burners. The pilot flame burner is always set next to the main burner to ignite the main burner and ensure that the main burner can work safely in any environment. It is an indispensable and important part of the stove system. At the same time, by setting a pilot flame burner to assist ignition, deflagration can be effectively prevented.

[0003] The gas sources for the stove system are mainly divided into natural gas and liquefied gas. In fuel chemistry, the calorific value refers to the heat released when the unit mass (or volume) of fuel is completely burned. Taking into account the slight difference in fuel temperature during actual combustion, the calorific value of natural gas is 34.02-37.78MJ / m 3 The calorific value of liquefied gas is between 116.09-125.81MJ / m 3 Therefore, only a smaller volume of liquefied gas needs to be burned to achieve the same heat output as burning a larger volume of natural gas.

[0004] The main burner and the pilot flame burner share an air inlet passage. When gas sources with different calorific values ​​are introduced into the main burner, pilot flame burners with different inner diameters are required to adapt to it. However, the inner diameter of the pilot flame burners currently on the market is fixed according to the type of gas source when they leave the factory, so they cannot adapt to the main burner after the gas source is switched. Utility Model Content

[0005] The purpose of this technical solution is to provide a long-lasting flame burner, which can connect the air channel one or the air channel two to the air inlet channel through a movable air channel conversion component, thereby solving the problem that the long-lasting flame burner is only suitable for a single gas source.

[0006] The purpose of this technical solution is achieved in this way:

[0007] A long-open flame burner comprises: a nozzle having an air outlet; an air inlet connector having an air inlet passage connected to the air outlet, the air inlet passage being used for circulating an air source; and an air duct conversion component, which is movably arranged on the air inlet connector, and the lower end of which radially penetrates the air inlet passage; wherein the lower end of the air duct conversion component has an air duct one and an air duct two which do not intersect with each other, and the inner diameter of the air duct one is smaller than the inner diameter of the air duct two; the movable air duct conversion component can realize that the air duct one or the air duct two is connected to the air inlet passage separately.

[0008] Preferably, the airway conversion component is rotatably arranged in the air intake joint and has a first position and a second position; when the airway conversion component is placed in the first position, airway one connects to the air intake channel and airway two is closed; when the airway conversion component is placed in the second position, airway two connects to the air intake channel and airway one is closed.

[0009] Preferably, when the airway conversion component is placed in the first position, airway one is arranged along the direction of the air intake passage; when the airway conversion component is placed in the second position, airway two is arranged along the direction of the air intake passage; airway one and airway two both pass through the central axis of the airway conversion component.

[0010] Preferably, the airway one and the airway two are arranged perpendicular to each other.

[0011] Preferably, the air intake connector has at least: a connecting part one, which is used to connect the front end of the nozzle; a connecting part two, which is used to connect the air source; and a switching part, which has a mounting hole that penetrates the air intake channel, and the mounting hole is divided by the air intake channel to form mounting hole one and mounting hole two; wherein the airway conversion component is threadedly connected in mounting hole one, and its lower end is movably placed in mounting hole two.

[0012] Preferably, the airway conversion member outer sleeve is provided with a sealing gasket abutting against an inner wall of the mounting hole.

[0013] Preferably, sealing grease is coated between the airway conversion component and the inner wall of the first mounting hole.

[0014] Preferably, the nozzle has at least one air inlet on its front end.

[0015] Preferably, when the gas source is liquefied gas, the gas channel 1 is connected to the air intake channel; when the gas source is natural gas, the gas channel 2 is connected to the air intake channel.

[0016] Preferably, the long-open flame burner also includes a bracket, and the nozzle or air inlet joint is arranged on the bracket; a thermocouple and an ignition needle are arranged on the bracket, the thermocouple is located beside the air outlet, and the ignition needle is located at the front end of the air outlet.

[0017] Compared with the prior art, the technical solution has the following outstanding and beneficial technical effects:

[0018] 1. The air intake joint and nozzle designed in this technical solution serve as the air intake channel of the gas source. When the gas source flows in the air intake channel, the movable air channel conversion component allows air channel one or air channel two to connect to the air intake channel, thereby realizing rapid adjustment of the gas source flow rate, thereby making the pilot flame burner adapt to the gas source of the main burner.

[0019] 2. The airway 1 and the airway 2 designed in the technical solution are arranged perpendicular to each other. The perpendicular arrangement of the airway 1 and the airway 2 can make it easier for personnel to distinguish whether the airway 1 or the airway 2 is connected to the air intake channel.

[0020] 3. The air duct conversion component designed in this technical solution is threadedly connected in the mounting hole of the air inlet joint. After the air duct conversion component adjusts air duct one or air duct two to connect the air inlet channel, the threaded connection has the function of fixing and limiting the air duct conversion component, thereby improving the working stability of the long-open flame burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a pilot flame burner.

[0022] Figure 2 An exploded view of a pilot flame burner.

[0023] Figure 3 A cross-sectional view of a pilot flame burner.

[0024] Figure numerals: 1. nozzle; 2. air outlet; 3. air inlet connector; 31. connection part one; 32. connection part two; 33. switching part; 34. mounting hole one; 35. mounting hole two; 4. air inlet passage; 5. air duct conversion part; 6. air duct one; 7. air duct two; 9. sealing gasket; 10. air inlet; 11. bracket; 12. thermocouple; 13. ignition needle; 14. slot. DETAILED DESCRIPTION

[0025] The specific implementation of the technical solution is further described in detail below with reference to the accompanying drawings.

[0026] [Example 1]

[0027] A long-open flame burner comprises: a nozzle 1, which has an air outlet 2; an air inlet connector 3, which has an air inlet channel 4 connected to the air outlet 2, and the air inlet channel 4 is used for the circulation of an air source; and an air duct conversion component 5, which is movably arranged on the air inlet connector 3, and the lower end of which radially penetrates the air inlet channel 4; wherein the lower end of the air duct conversion component 5 has an air duct 1 6 and an air duct 2 7 which do not intersect with each other, and the inner diameter of the air duct 1 6 is smaller than the inner diameter of the air duct 2 7; the movable air duct conversion component 5 can realize that the air duct 1 6 or the air duct 2 7 is separately connected to the air inlet channel 4.

[0028] like Figure 1-3As shown, the air inlet channel 4 and the air outlet hole 2 of the nozzle 1 are connected to each other and serve as a circulation channel for the gas source. When the long-fire burner switches the gas source, it is necessary to determine different air channel inner diameters according to the type of gas source. Specifically, when liquefied gas is used as the gas source, due to its higher calorific value, it is necessary to connect the air channel 1 6 with a smaller inner diameter to the air inlet channel 4; when natural gas is used as the gas source, due to its lower calorific value, it is necessary to connect the air channel 2 7 with a larger inner diameter to the air inlet channel 4. Therefore, when the main burner switches the gas source, the long-fire burner can control the air channel conversion component 5 to realize the switching of air channel 1 6 and air channel 2 7 to adapt to the gas source of the main burner.

[0029] Preferably, the air intake connector 3 has at least: a connecting portion 1 31, which is used to connect to the front end of the nozzle 1; a connecting portion 2 32, which is used to connect to the air source; and a switching portion 33, which has a mounting hole that passes through the air intake channel 4, and the mounting hole is divided by the air intake channel 4 to form a mounting hole 1 34 and a mounting hole 2 35; wherein the airway conversion component 5 is threadedly connected in the mounting hole 1 34, and its lower end is movably placed in the mounting hole 2 35.

[0030] like Figure 1-3 As shown, both the connection part 1 31 and the connection part 2 32 have threads, and the connection part 1 31 can be connected to the front end of the nozzle 1 through the threads, and the connection part 2 32 can be connected to the air supply equipment through the threads. The connection part 1 31 and the connection part 2 32 are in the same straight line, and cooperate with the switching part 33 to form a "T"-shaped three-way pipeline. The mounting hole 1 34 and the mounting hole 2 35 are relatively arranged on both sides of the same position of the air intake channel 4. Therefore, the upper end of the airway conversion component 5 is threadedly connected to the inner wall of the mounting hole 1 34, and the lower end of the airway conversion component 5 is movably placed in the mounting hole 2 35. The airway 1 6 and the airway 2 7 are both arranged in the middle of the airway conversion component 5. By screwing in or out of the airway conversion component 5, the airway 1 6 or the airway 2 7 can be connected to the air intake channel 4 separately.

[0031] Preferably, the air duct conversion component 5 is rotatably arranged in the air intake connector 3, and has a first position and a second position; when the air duct conversion component 5 is placed in the first position, air duct one 6 is connected to the air intake channel 4, and air duct two 7 is closed; when the air duct conversion component 5 is placed in the second position, air duct two 7 is connected to the air intake channel 4, and air duct one 6 is closed.

[0032] like Figure 1-3 As shown, when the outer diameter of the airway conversion component 5 placed inside the air intake channel 4 is larger than the inner diameter of the air intake channel 4, the air intake channel 4 can be completely blocked, so that the air source can only pass through airway 1 6 or airway 2 7.

[0033] Further, when the air duct conversion component 5 is placed in the first position, air duct one 6 is arranged along the direction of the air intake channel 4; when the air duct conversion component 5 is placed in the second position, air duct two 7 is arranged along the direction of the air intake channel 4; air duct one 6 and air duct two 7 both pass through the central axis of the air duct conversion component 5.

[0034] Furthermore, the airway 1 6 and the airway 2 7 are arranged vertically to each other, so that personnel can accurately switch the airway 1 6 and the airway 2 7 according to the characteristics of the top of the airway conversion component 5, and can also easily know whether the current state is that the airway 1 6 or the airway 2 7 is connected to the flow channel.

[0035] Preferably, the airway conversion component 5 is provided with a sealing gasket 9 abutting against the inner wall of the mounting hole 34; sealing grease is coated between the airway conversion component 5 and the inner wall of the mounting hole 34; and the front end of the nozzle 1 has at least one air inlet 10.

[0036] like Figure 1-3 As shown, the top of the air duct conversion component 5 has a slot 14, and the slot 14 can be used for a screwdriver to rotate the air duct conversion component 5. By rotating the air duct conversion component 5, the switching of air duct one 6 and air duct two 7 can be achieved, and a mark is provided next to the mounting hole one 34, and a "T"-shaped mark representing "natural gas" is provided on the air duct conversion component 5. When the "T"-shaped mark is aligned with the mark, the air duct two 7 is connected to the air inlet channel 4, and the gas source is natural gas at this time; when the "T"-shaped mark is perpendicular to the mark, the air duct one 6 is connected to the air inlet channel 4, and the gas source is liquefied gas at this time. Personnel can know the status of the air duct conversion component 5 through the position of the "T"-shaped mark and the mark.

[0037] Furthermore, the sealing gasket 9 is used to seal the mounting hole 34, and sealing grease is also applied between the thread of the airway conversion component 5, the sealing gasket 9 and the inner wall of the mounting hole 34. The sealing gasket 9 and the sealing grease are used to prevent air source leakage.

[0038] The long-open flame burner also includes a bracket 11, and the nozzle 1 or the air inlet connector 3 is arranged on the bracket 11; a thermocouple 12 is arranged on the bracket 11, and the thermocouple 12 is located beside the air outlet 2; an ignition needle 13 is arranged on the bracket 11, and the ignition needle 13 is located at the front end of the air outlet 2.

[0039] like Figure 1-3 As shown, the bracket 11 is used to fix the pilot flame burner on the mounting surface so that the pilot flame it produces can be aimed at the main burner. The air inlet 10 can add oxygen when the gas source is burning, so that it can burn fully and reduce the generation of gases such as carbon monoxide. An independent ignition needle 13 and a thermocouple 12 are also provided on the bracket 11. The thermocouple 12 is used to monitor the temperature of the pilot flame.

[0040] Furthermore, the air inlet connector 3 and the nozzle 1 can be separately provided and connected to each other and then provided on the bracket 11 , or they can be provided integrally on the bracket 11 , in which case the air outlet 2 is a port on one side of the air inlet passage 4 .

[0041] [Example 2]

[0042] The configuration of this embodiment is substantially the same as that of embodiment 1, with the only difference being the movable mode of the airway conversion component 5. The airway conversion component 5 is pluggable and placed in the mounting hole, and the airway one 6 or the airway two 7 can be independently connected to the air intake channel 4 by plugging and unplugging the airway conversion component 5.

[0043] The above shows and describes the basic principle and main features of the technical solution and the advantages of the technical solution. The technicians in this industry should understand that the technical solution is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the technical solution. Without departing from the spirit and scope of the technical solution, the technical solution will have various changes and improvements, which fall within the scope of the technical solution to be protected. The scope of protection claimed by the technical solution is defined by the attached claims and their equivalents.

Claims

1. A pilot flame burner, characterized in that: include: A nozzle (1) having an air outlet hole (2); An air inlet connector (3) having an air inlet passage (4) connected to the air outlet hole (2), the air inlet passage (4) being used for the circulation of an air source; and An air passage conversion member (5) is movably arranged on the air intake joint (3), and a lower end thereof radially penetrates the air intake passage (4); The lower end of the airway conversion member (5) has an airway 1 (6) and an airway 2 (7) which do not intersect each other, and the inner diameter of the airway 1 (6) is smaller than the inner diameter of the airway 2 (7); The movable air channel conversion component (5) can realize that the air channel one (6) or the air channel two (7) is independently connected to the air inlet channel (4).

2. A pilot flame burner according to claim 1, characterized in that: The airway conversion member (5) is rotatably disposed in the air inlet connector (3) and has a first position and a second position; When the air channel conversion member (5) is placed in the first position, the air channel one (6) is connected to the air inlet channel (4), and the air channel two (7) is closed; When the air channel conversion component (5) is placed in the second position, the air channel 2 (7) is connected to the air inlet channel (4) and the air channel 1 (6) is closed.

3. A pilot flame burner according to claim 2, characterized in that: When the air channel conversion member (5) is placed in the first position, the air channel 1 (6) is arranged along the direction of the air inlet channel (4); When the air channel conversion member (5) is placed in the second position, the second air channel (7) is arranged along the direction of the air inlet channel (4); Airway one (6) and airway two (7) both pass through the central axis of the airway conversion component (5).

4. A pilot flame burner according to claim 3, characterized in that: The airway one (6) and the airway two (7) are arranged perpendicular to each other.

5. A pilot flame burner according to any one of claims 1 to 4, characterized in that: The air inlet connector (3) at least comprises: A connecting portion 1 (31) used for connecting to the front end of the nozzle (1); A second connection portion (32) for connecting to a gas source; and A switching portion (33) having a mounting hole penetrating the air intake passage (4), the mounting hole being divided by the air intake passage (4) into a first mounting hole (34) and a second mounting hole (35); The airway conversion component (5) is threadedly connected in the first mounting hole (34), and its lower end is movably placed in the second mounting hole (35).

6. A pilot flame burner according to claim 5, characterized in that: The air passage conversion component (5) is provided with a sealing gasket (9) on the outer sleeve thereof, which abuts against the inner wall of the first mounting hole (34).

7. A pilot flame burner according to claim 6, characterized in that: Sealing grease is applied between the airway conversion component (5) and the inner wall of the first mounting hole (34).

8. A pilot flame burner according to claim 7, characterized in that: The nozzle (1) has at least one air inlet (10) at the front end.

9. A pilot flame burner according to claim 8, characterized in that: When the gas source is liquefied gas, the gas channel 1 (6) is connected to the gas inlet channel (4); when the gas source is natural gas, the gas channel 2 (7) is connected to the gas inlet channel (4).

10. A pilot flame burner according to claim 9, characterized in that: It also comprises a bracket (11), and the nozzle (1) or the air inlet connector (3) is arranged on the bracket (11); The bracket (11) is provided with a thermocouple (12) and an ignition needle (13); the thermocouple (12) is located beside the air outlet (2), and the ignition needle (13) is located at the front end of the air outlet (2).

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