A burner assembly that can select different gas sources

Abstract

The present invention relates to a burner assembly capable of selecting different gas sources, comprising a housing. Inside the housing, there are a burner row and a gas pipeline. Inside the gas pipeline, there are an intake cavity, a first gas cavity, and a second gas cavity. A plurality of first nozzles are provided in the first gas cavity and the second gas cavity. A first solenoid valve is provided between the intake cavity and the second gas cavity. The technical key point is that a first valve core cavity is further provided inside the gas pipeline. The first solenoid valve includes a first main valve core. A first valve core channel is provided inside the first main valve core. A first communication hole is provided on the first main valve core. A first sub-valve core is provided inside the first valve core channel. The first solenoid valve further includes a first stationary iron core capable of sucking down the first main valve core and the first sub-valve core simultaneously or sucking down the first sub-valve core only. A first return spring and a second return spring are provided inside the first valve core channel. The structure of the present invention is simple, and it is possible to select which gas source to connect through a set value.

Description

Technical Field

[0001] The present invention relates to a burner assembly for a gas water heater.

Background Art

[0002] The calorific values of natural gas and liquefied gas vary greatly. For water heaters with different gas sources, corresponding different burners are required. Currently, the valve stems on the burners of gas water heaters in the market have a fixed structure and can only control one gas volume, so they cannot be applied to natural gas and liquefied gas simultaneously. During production, different burners need to be installed for the same product to correspond to different gases, which brings certain troubles to production and manufacturing, with dual-line production and management control, and relatively high costs.

Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a burner assembly with a simple structure, low production cost, and capable of selecting different gas sources.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A burner assembly capable of selecting different gas sources includes a housing. A burner row and a gas pipeline for supplying gas to the burner row are provided inside the housing. An intake cavity, a first gas cavity communicating with the intake cavity, and a second gas cavity communicating with the intake cavity are provided inside the gas pipeline. A plurality of first nozzles opposite to the burner row are provided in the first gas cavity and the second gas cavity. A first solenoid valve for controlling the on-off of the gas between the intake cavity and the second gas cavity is provided between the intake cavity and the second gas cavity. It is characterized in that: a first valve core cavity communicating the intake cavity and the second gas cavity is further provided inside the gas pipeline. The first solenoid valve includes a first main valve core with one end extending into the first valve core cavity to block the communication port between the first valve core cavity and the second gas cavity. A first valve core channel capable of communicating with the second gas cavity is provided inside the first main valve core. A first communication hole capable of communicating the first valve core channel and the first valve core cavity is provided on the first main valve core. A first sub-valve core for controlling the on-off of the gas in the first valve core channel is provided inside the first valve core channel. The first solenoid valve further includes a first static iron core capable of sucking down the first main valve core and the first sub-valve core simultaneously or sucking down the first sub-valve core only. A first return spring for elastically pressing the first main valve core to reset and a second return spring for elastically pressing the first sub-valve core to reset are provided inside the first valve core channel.

[0006] A burner assembly capable of selecting different gas sources as described above, characterized in that: a second valve core cavity communicating with the first gas cavity is further provided in the gas pipeline, a second nozzle opposite to the burner row is provided in the second valve core cavity, a second electromagnetic valve is provided on the gas pipeline, the second electromagnetic valve includes a second main valve core with one end extending into the second valve core cavity to block the second nozzle, a second valve core channel capable of communicating with the second nozzle is provided in the second main valve core, a second communication hole capable of communicating the second valve core channel and the second valve core cavity is provided on the second main valve core, a second sub-valve core capable of controlling the on-off of the gas in the second valve core channel is provided in the second valve core channel, the second electromagnetic valve further includes a second static iron core capable of sucking down the second main valve core and the second sub-valve core simultaneously and / or capable of sucking down the second sub-valve core, and a third return spring for elastically pressing the second main valve core to reset and a fourth return spring for elastically pressing the second sub-valve core to reset are provided in the second valve core channel.

[0007] A burner assembly capable of selecting different gas sources as described above, characterized in that: two of the first nozzles are provided in the first gas cavity, and three of the first nozzles are provided in the second gas cavity.

[0008] A burner assembly capable of selecting different gas sources as described above, characterized in that: one of the second nozzles is provided in the second valve core cavity.

[0009] A burner assembly capable of selecting different gas sources as described above, characterized in that: the first gas cavity and the second gas cavity are respectively arranged on the left and right sides of the second valve core cavity.

[0010] The beneficial effects of the present invention are as follows: The first electromagnetic valve is controlled by the first main valve core and the first sub-valve core. The double valve cores are respectively connected to natural gas and liquefied gas. During production, only the same model and type are required. During use, according to the actual gas source, different gas source codes are set on the controller. Different gas source codes correspond to different development voltage range values of the electromagnetic valve, so as to determine whether to use the first main valve core or the first sub-valve core to work. The first gas cavity and the second gas cavity are respectively used to control the large fire and the small fire. When the first electromagnetic valve is in the closed state (controlled by the first main valve core or the first sub-valve core), gas cannot enter the second gas cavity, and it is in the small fire state. The structure is simple and the use is convenient; by setting the second valve core cavity, it is used to realize the medium fire control. When the second electromagnetic valve is in the open state (controlled by the second main valve core or the first sub-valve core), it is in the medium fire state. The structure is simple and the use is convenient.

Description of the Drawings

[0011] Figure 1 is a three-dimensional view of the present invention;

[0012] Figure 2 is a three-dimensional view of the gas pipeline component of the present invention;

[0013] Figure 3 Cross-sectional view of the gas pipeline component of the present invention;

[0014] Figure 4 is Figure 3 A-A cross-sectional view of;

[0015] Figure 5 Exploded view of the gas pipeline component of the present invention.

Detailed implementation manners

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners:

[0017] Such as Figures 1 to 5As shown in the figure, a burner assembly that can select different gas sources. Specifically, during production, the factory can set values according to the gas source selection. It includes a housing 1. Inside the housing 1, there is a burner 2 and a gas pipeline 3 for supplying gas to the burner 2. Inside the gas pipeline 3, there is an intake chamber 31, a first gas chamber 32 communicating with the intake chamber 31, and a second gas chamber 33 communicating with the intake chamber 31. In the first gas chamber 32 and the second gas chamber 33, there are multiple first nozzles 4 opposite to the burner 2. There are two first nozzles 4 in the first gas chamber 32 and three first nozzles 4 in the second gas chamber 33. One burner corresponds to one nozzle, and the nozzle is aligned with the ejector tube of the burner. A first solenoid valve 5 for controlling the on-off of the gas between the intake chamber 31 and the second gas chamber 33 is provided between the intake chamber 31 and the second gas chamber 33. The first gas chamber 32 is always in communication with the intake chamber 31. After the gas valve is opened, it enters the small-fire state. When a large fire is required, the first solenoid valve 5 is opened, and the intake chamber 31 is in communication with the second gas chamber 33. Gas enters the first gas chamber 32 and the second gas chamber 33 simultaneously, entering the large-fire state. Inside the gas pipeline 3, there is also a first valve core chamber 35 communicating the intake chamber 31 and the second gas chamber 33. The first solenoid valve 5 includes a first main valve core 52 whose one end extends into the first valve core chamber 35 and can block the communication port 34 between the first valve core chamber 35 and the second gas chamber 33. The first solenoid valve 5 has a valve seat, and the first main valve core 52 is arranged on the valve seat. The other end extends into the first valve core chamber 35. Inside the first main valve core 52, there is a first valve core channel 53 that can communicate with the second gas chamber 33. On the first main valve core 52, there is a first communication hole 54 that can communicate the first valve core channel 53 and the first valve core chamber 35. Inside the first valve core channel 53, there is a first sub-valve core 55 for controlling the on-off of the gas in the first valve core channel 53. The first solenoid valve 5 also includes a first stationary iron core 56 that can suck down the first main valve core 52 and the first sub-valve core 55 simultaneously or suck down the first sub-valve core 55 only. Inside the first valve core channel 53, there is a first return spring 57 for elastically pressing the first main valve core 52 to reset and a second return spring 58 for elastically pressing the first sub-valve core 55 to reset. The elastic force of the first return spring 57 is greater than the elastic force of the second return spring 58. When the magnetic force level of the first stationary iron core 56 selects a large level, the first stationary iron core 56 generates a large suction force to suck down the first main valve core 52 and the first sub-valve core 55 simultaneously, and the communication port 34 is no longer blocked. In this way, gas enters the first valve core chamber 35 from the intake chamber 31 and then enters the second gas chamber 33. At this time, there is no relative movement between the first sub-valve core 55 and the first main valve core 52, and the first valve core channel 53 is in the closed state, which can be used to connect natural gas. When the magnetic force level of the first stationary iron core 56 selects a small level, the magnetic force of the first stationary iron core 56 can only suck down the first sub-valve core 55. At this time, the first sub-valve core 55 blocks the communication port 34. Gas enters the first valve core channel 53 through the first communication hole 54 and then enters the second gas chamber 33. At this time, the gas volume is small, which can be used to connect liquefied gas.

[0018] In order to achieve the medium-fire function, a set of nozzles can be added and controlled by another solenoid valve. Specifically, a second valve core cavity 36 communicating with the first gas cavity 32 is further provided in the gas pipeline 3. The first gas cavity 32 and the second gas cavity 33 are respectively arranged on the left and right sides of the second valve core cavity 36. A second nozzle 6 opposite to the burner 2 is provided in the second valve core cavity 36, and there is one second nozzle 6 in the second valve core cavity 36. A second solenoid valve 7 is provided on the gas pipeline 3. The second solenoid valve 7 includes a second main valve core 71 with one end extending into the second valve core cavity 36 to block the second nozzle 6. A second valve core channel 72 communicating with the second nozzle 6 is provided in the second main valve core 71. A second communication hole 73 communicating the second valve core channel 72 and the second valve core cavity 36 is provided on the second main valve core 71. A second sub-valve core 74 for controlling the on-off of the gas in the second valve core channel 72 is provided in the second valve core channel 72. The second solenoid valve 7 further includes a second static iron core 75 capable of simultaneously sucking down the second main valve core 71 and the second sub-valve core 74 or sucking down the second sub-valve core 74. A third return spring 76 for elastically pressing the second main valve core 71 to reset and a fourth return spring 77 for elastically pressing the second sub-valve core 74 to reset are provided in the second valve core channel 72. The structural principle of the second solenoid valve 7 is the same as that of the first solenoid valve 5.

Claims

1. A burner assembly capable of selecting different gas sources, comprising a housing (1). A burner row (2) and a gas pipeline (3) for supplying gas to the burner row (2) are provided inside the housing (1). An intake cavity (31), a first gas cavity (32) communicating with the intake cavity (31), and a second gas cavity (33) communicating with the intake cavity (31) are provided inside the gas pipeline (3). A plurality of first nozzles (4) opposite to the burner row (2) are provided in the first gas cavity (32) and the second gas cavity (33). A first solenoid valve (5) for controlling the on-off of the gas between the intake cavity (31) and the second gas cavity (33) is provided between the intake cavity (31) and the second gas cavity (33). It is characterized in that: A first spool chamber (35) communicating with the intake chamber (31) and the second gas chamber (33) is further provided in the gas pipeline (3). The first electromagnetic valve (5) includes a first main spool (52) with one end extending into the first spool chamber (35) to block the communication port (34) between the first spool chamber (35) and the second gas chamber (33). A first spool passage (53) communicating with the second gas chamber (33) is provided in the first main spool (52). A first communication hole (54) communicating the first spool passage (53) and the first spool chamber (35) is provided on the first main spool (52). A first sub-spool (55) for controlling the on-off of the gas in the first spool passage (53) is provided in the first spool passage (53). The first electromagnetic valve (5) further includes a first stationary iron core (56) capable of sucking down the first main spool (52) and the first sub-spool (55) simultaneously or sucking down the first sub-spool (55). A first return spring (57) for elastically pressing the first main spool (52) to reset and a second return spring (58) for elastically pressing the first sub-spool (55) to reset are provided in the first spool passage (53). A second spool chamber (36) communicating with the first gas chamber (32) is further provided in the gas pipeline (3). A second nozzle (6) opposite to the burner (2) is provided in the second spool chamber (36). A second electromagnetic valve (7) is provided on the gas pipeline (3). The second electromagnetic valve (7) includes a second main spool (71) with one end extending into the second spool chamber (36) to block the second nozzle (6). A second spool passage (72) communicating with the second nozzle (6) is provided in the second main spool (71). A second communication hole (73) communicating the second spool passage (72) and the second spool chamber (36) is provided on the second main spool (71). A second sub-spool (74) for controlling the on-off of the gas in the second spool passage (72) is provided in the second spool passage (72). The second electromagnetic valve (7) further includes a second stationary iron core (75) capable of sucking down the second main spool (71) and the second sub-spool (74) simultaneously and / or sucking down the second sub-spool (74). A third return spring (76) for elastically pressing the second main spool (71) to reset and a fourth return spring (77) for elastically pressing the second sub-spool (74) to reset are provided in the second spool passage (72). Two of the first nozzles (4) are provided in the first gas chamber (32), and three of the first nozzles (4) are provided in the second gas chamber (33).

2. The burner assembly capable of selecting different gas sources according to claim 1, wherein: One second nozzle (6) is provided in the second spool chamber (36).

3. The burner assembly capable of selecting different gas sources according to claim 1, wherein: The first gas chamber (32) and the second gas chamber (33) are respectively arranged on the left and right sides of the second spool chamber (36).

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