Gas water heater

Abstract

The gas water heater comprises a shell, a water pipe, a combustor, a smoke exhaust assembly, a control system and a heat exchanger are arranged in the shell, heat generated by the combustor is transmitted to the water pipe through the heat exchanger, a gas feeding pipe capable of being connected with a gas pipe is connected to the combustor, and a gas inlet valve is arranged on the gas feeding pipe. A conducting device for communicating the air supply pipe with the burner is arranged between the air supply pipe and the burner, is provided with at least two air inlet channels with different apertures, and is also provided with a switching mechanism capable of switching to the air inlet channels with different apertures to conduct the air supply pipe with the burner; according to the gas water heater, the at least two gas inlet channels with different hole diameters are arranged on the conduction device, and the switching mechanism is arranged, so that the gas water heater can flexibly cope with different types of gas, and a user can easily switch different gas sources without worrying about the problem of low combustion efficiency or unsafety caused by gas pressure difference.

Description

Technical Field

[0001] The present invention relates to the technical field of water heaters, and in particular to a gas water heater. Background Art

[0002] A gas water heater is a device that uses natural gas or liquefied petroleum gas as fuel to heat water. At present, some customers sometimes encounter the phenomenon of insufficient natural gas or gas outage, in which case they need to switch to liquefied gas for use. However, traditional gas water heaters have some limitations when actually switching gas sources. For example, a single-aperture air intake channel cannot flexibly adapt to the needs under different working conditions. For example, when switching different gas sources, the air pressures of different gas sources are different, resulting in differences in air intake volume. This may lead to incomplete combustion, affect thermal efficiency, increase gas consumption, and may produce more pollutant emissions.

[0003] The present invention is made based on the above situation. Summary of the invention

[0004] The present invention overcomes the shortcomings of the prior art and provides a gas water heater which can switch air inlet passages of corresponding apertures according to gas sources of different gas pressures to improve gas combustion efficiency.

[0005] The present invention is achieved through the following technical solutions:

[0006] A gas water heater comprises a shell, in which a water pipe, a burner, a smoke exhaust component, a control system and a heat exchanger for transferring heat generated by the burner to the water pipe are arranged, the burner is connected to an air supply pipe that can be connected to a gas pipe, the air supply pipe is provided with an air intake valve, a conducting device is provided between the air supply pipe and the burner to connect the two, the conducting device is provided with at least two air intake channels with different apertures, and the conducting device is also provided with a switching mechanism that can switch to air intake channels with different apertures to connect the air supply pipe with the burner.

[0007] In the gas water heater as described above, the conduction device includes a connecting seat, on which is provided a gas distribution cavity that can be communicated with the air supply pipe and a gas distribution hole that connects the gas distribution cavity with the burner. The connecting seat is also movably connected to an adjustment plate, and all air inlet channels are arranged on the adjustment plate along the movable direction of the adjustment plate. The connecting seat is also provided with an adjustment mechanism that can drive the adjustment plate to move so that one of the air inlet channels is conducted with the gas distribution hole and the burner.

[0008] As described above, the gas water heater, the adjustment mechanism includes an adjustment seat connected to the connecting seat, the adjustment plate is connected to an adjustment block, the adjustment seat is rotatably connected to an adjustment rod that can drive the adjustment block to move, the adjustment rod is threadedly connected to the adjustment block, and the adjustment seat is also provided with a limit cavity for limiting the movement of the adjustment block.

[0009] As described above, in the gas water heater, the connecting seat is provided with a guide groove for guiding the movement of the adjusting plate, and the gas distribution hole passes through the bottom of the guide groove.

[0010] As described above, in the gas water heater, the groove bottom of the guide groove is provided with an annular groove, the annular groove surrounds the outer side of the gas distribution hole, and a sealing ring is provided in the annular groove to seal the gap between the adjustment plate and the guide groove.

[0011] As for the gas water heater as described above, the connection seat is further connected with a baffle plate for further limiting the sliding of the adjustment plate along the guide groove, the baffle plate is provided with an air outlet hole facing the air distribution hole, and the burner is connected with the air outlet hole.

[0012] As described above, the gas water heater has gas distribution holes on both sides of the connection seat, and there are two adjustment plates, which are both connected to the adjustment block.

[0013] In the gas water heater as described above, the adjustment seat includes a connecting plate arranged on the connecting seat and a U-shaped frame connected to the connecting plate, the U-shaped frame is provided with connecting legs bent outwards, and the connecting plate is provided with an avoidance hole for the adjustment plate to be inserted into the guide groove.

[0014] In the gas water heater as described above, the water pipe has a water inlet end and a water outlet end, and a thermostat is provided on the water outlet end of the water pipe.

[0015] In the gas water heater as described above, the smoke exhaust assembly includes a smoke collecting hood, and the smoke collecting hood is connected to an exhaust pipe.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] In this case, by setting at least two air inlet channels with different apertures on the conduction device and equipping it with a switching mechanism, the gas water heater can flexibly cope with different types of gas, so that users can easily switch between different gas sources without worrying about inefficient or unsafe combustion caused by differences in gas pressure. Air inlet channels with different apertures can be optimized according to the characteristics of different gas sources to ensure that the most suitable gas flow rate is provided each time it is used. This not only helps to improve combustion efficiency and reduce gas consumption, but also reduces the generation of harmful emissions, which is environmentally friendly. The switching mechanism allows users to quickly switch between different gas sources, simplifies the operating process, and improves the user experience. Users can ensure that the water heater is in the best working condition without complex adjustments or professional knowledge. Since the combustion process is optimized and the risk of wear and damage caused by insufficient or excessive combustion is reduced, it helps to extend the overall service life of the gas water heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the present invention after removing the shell;

[0021] Figure 3 It is a structural schematic diagram of the conduction device in the present invention;

[0022] Figure 4 Schematic diagram of the cross-section of the conducting device in the present invention Figure 1 ;

[0023] Figure 5 Schematic diagram of the cross-section of the conducting device in the present invention Figure 2 ;

[0024] Figure 6 It is an exploded schematic diagram of the conducting device in the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] like Figures 1 to 6 A gas water heater shown in the figure comprises a shell 1, in which a water pipe 2, a burner 3, a smoke exhaust component 4, a control system and a heat exchanger 5 for transferring the heat generated by the burner 3 to the water pipe 2 are arranged, the burner 3 is connected to an air supply pipe 6 which can be connected to the gas pipe, the air supply pipe 6 is provided with an air intake valve 61, a conducting device 7 is provided between the air supply pipe 6 and the burner 3 to connect the two, the conducting device 7 is provided with at least two air intake channels 71 with different apertures, and the conducting device 7 is also provided with a switching mechanism 72 which can switch the air intake channels 71 with different apertures to connect the air supply pipe 6 with the burner 3.

[0027] In this case, by setting at least two air inlet channels 71 with different apertures on the conduction device 7 and equipping it with a switching mechanism 72, the gas water heater can flexibly cope with different types of gas, so that users can easily switch between different gas sources without worrying about inefficient or unsafe combustion caused by differences in gas pressure. The air inlet channels 71 with different apertures can be optimized according to the characteristics of different gas sources to ensure that the most suitable gas flow rate is provided each time it is used. This not only helps to improve combustion efficiency and reduce gas consumption, but also reduces the generation of harmful emissions, which is environmentally friendly. The switching mechanism 72 allows users to quickly switch between different gas sources, simplifies the operating process, and improves the user experience. Users can ensure that the water heater is in the best working condition without complex adjustments or professional knowledge. Since the combustion process is optimized and the risk of wear and damage caused by insufficient or excessive combustion is reduced, it helps to extend the overall service life of the gas water heater.

[0028] Specifically, the conducting device 7 includes a connecting seat 73, on which is provided a gas distribution cavity 731 that can be communicated with the air supply pipe 6 and a gas distribution hole 732 that connects the gas distribution cavity 731 with the burner 3. The connecting seat 73 is also movably connected to an adjustment plate 74, and all air intake channels 71 are arranged on the adjustment plate 74 along the movement direction of the adjustment plate 74. The connecting seat 73 is also provided with an adjustment mechanism that can drive the adjustment plate 74 to move so that one of the air intake channels 71 is connected to the gas distribution hole 732 and the burner 3.

[0029] The conduction device 7 can flexibly select the most suitable intake channel 71 according to the change of gas type or working conditions through the intake channels 71 with different apertures on the adjustment plate 74, thereby ensuring that no matter which gas is used, a better combustion effect can be obtained. The movement direction of the adjustment plate 74 is consistent with the arrangement of all the intake channels 71, so that when the adjustment plate 74 is driven to move by the adjustment mechanism, the selected intake channel 71 can be accurately aligned with the gas distribution hole 732, thereby realizing accurate control of the gas flow. This helps to optimize the combustion efficiency and reduce unnecessary gas consumption.

[0030] Further, the adjustment mechanism includes an adjustment seat 751 connected to the connection seat 73, the adjustment plate 74 is connected to the adjustment block 741, the adjustment seat 751 is rotatably connected to an adjustment rod 752 that can drive the adjustment block 741 to move, the adjustment rod 752 is threadedly connected to the adjustment block 741, and the adjustment seat 751 is also provided with a limiting cavity 753 for limiting the movement of the adjustment block 741. Among them, the adjustment plate 74 can be connected to the adjustment block 741 by threaded fasteners or other connection methods.

[0031] The adjusting rod 752 and the adjusting block 741 are connected by threads, which can efficiently convert the rotational motion into the linear motion. This mechanism can ensure the movement accuracy of the adjusting plate 74, so as to ensure that the air inlet channel 71 can be accurately positioned each time it is switched. The limiting cavity 753 provides a limiting effect for the movement of the adjusting block 741 to prevent the adjusting block 741 from exceeding the set range. In one embodiment, the adjusting plate 74 is provided with two air inlet channels 71 with different apertures, namely the small-hole air channel 701 and the large-hole air channel 702, which can ensure that the adjusting plate 74 is adjusted in place through the limit position.

[0032] Furthermore, the connecting seat 73 is provided with a guide groove 733 for guiding the movement of the adjustment plate 74, and the gas distribution hole 732 penetrates the groove bottom of the guide groove 733. The groove bottom of the guide groove 733 is provided with an annular groove 734, and the annular groove 734 surrounds the outer side of the gas distribution hole 732. The annular groove 734 is provided with a sealing ring 735 for sealing the gap between the adjustment plate 74 and the guide groove 733. The sealing ring 735 can effectively seal the gap between the adjustment plate 74 and the guide groove 733 to prevent gas from leaking through these tiny gaps, and also helps to maintain the correct gas pressure and flow required by the burner.

[0033] In one embodiment, the connection seat 73 is further connected with a baffle 76 for further limiting the sliding of the adjustment plate 74 along the guide groove 733. The baffle 76 is provided with an air outlet 761 facing the air distribution hole 732, and the burner 3 is connected with the air outlet 761. The baffle 76 serves as an additional safety measure to increase the redundancy of the system. Even if other components have minor problems, the baffle 76 can ensure the normal operation of basic functions, thereby improving the reliability and durability of the entire system.

[0034] In one embodiment, both sides of the connection seat 73 are provided with gas distribution holes 732, and the number of the adjustment plates 74 is two, and the two adjustment plates 74 are connected to the adjustment block 741. The two adjustment plates 74 act together on the same adjustment block 741, which can distribute the adjustment force more evenly and avoid the problem of offset or wear caused by uneven force on one side. This helps to improve the stability and durability of the entire adjustment mechanism. At the same time, it can also allow the gas to enter the burner 3 from two directions.

[0035] In one embodiment, the adjustment seat 751 includes a connection plate 7511 disposed on the connection seat 73 and a U-shaped frame 7512 connected to the connection plate 7511, the U-shaped frame 7512 is provided with a connection foot 7513 bent outward, and the connection plate 7511 is provided with an avoidance hole 7514 for the adjustment plate 74 to be inserted into the guide groove 733. Among them, the connection seat 73 and the connection plate 7511 are an integrated structure, the connection foot 7513 is connected to the connection plate 7511 through a threaded fastener, the adjustment rod 752 is provided with a limit groove 7521, and the U-shaped frame 7512 is provided with a bayonet 7510 that can cooperate with the limit groove 7521.

[0036] In one embodiment, the water pipe 2 has a water inlet end 21 and a water outlet end 22, and a thermostat 8 is disposed on the water outlet end 22 of the water pipe 2. The water inlet end 21 of the water pipe 2 is provided with a water inlet regulating valve.

[0037] In one embodiment, the smoke exhaust assembly 4 includes a smoke collecting hood 41, and an exhaust pipe is connected to the smoke collecting hood 41. The smoke collecting hood 41 is connected to the housing 1 through a threaded fastener.

Claims

1. A gas water heater, characterized in that: The invention comprises a shell (1), wherein a water pipe (2), a burner (3), a smoke exhaust component (4), a control system and a heat exchanger (5) for transferring heat generated by the burner (3) to the water pipe (2) are arranged in the shell (1); an air supply pipe (6) which can be connected to a gas pipe is connected to the burner (3); an air intake valve (61) is arranged on the air supply pipe (6); a conducting device (7) for connecting the air supply pipe (6) and the burner (3) is arranged between the air supply pipe (6) and the burner (3); the conducting device (7) is provided with at least two air intake channels (71) with different apertures; and the conducting device (7) is also provided with a switching mechanism (72) which can switch to air intake channels (71) with different apertures to connect the air supply pipe (6) and the burner (3).

2. The gas water heater according to claim 1, characterized in that: The conduction device (7) comprises a connection seat (73), on which is provided a gas distribution cavity (731) that can be communicated with the air supply pipe (6) and a gas distribution hole (732) that connects the gas distribution cavity (731) with the burner (3), the connection seat (73) is also movably connected to an adjustment plate (74), all the air intake channels (71) are arranged on the adjustment plate (74) along the movement direction of the adjustment plate (74), and the connection seat (73) is also provided with an adjustment mechanism that can drive the adjustment plate (74) to move so that one of the air intake channels (71) is connected to the gas distribution hole (732) and the burner (3).

3. The gas water heater according to claim 2, characterized in that: The adjustment mechanism comprises an adjustment seat (751) connected to the connection seat (73); the adjustment plate (74) is connected to an adjustment block (741); an adjustment rod (752) is rotatably connected to the adjustment seat (751) and can drive the adjustment block (741) to move; the adjustment rod (752) is threadedly connected to the adjustment block (741); and a limiting cavity (753) is also provided on the adjustment seat (751) for limiting the movement of the adjustment block (741).

4. The gas water heater according to claim 3, characterized in that: The connecting seat (73) is provided with a guide groove (733) for guiding the movement of the adjusting plate (74), and the air distribution hole (732) passes through the bottom of the guide groove (733).

5. The gas water heater according to claim 4, characterized in that: An annular groove (734) is provided at the bottom of the guide groove (733), the annular groove (734) surrounds the outer side of the air distribution hole (732), and a sealing ring (735) is provided in the annular groove (734) for sealing the gap between the adjustment plate (74) and the guide groove (733).

6. The gas water heater according to claim 5, characterized in that: The connecting seat (73) is also connected to a baffle (76) for further limiting the sliding of the adjustment plate (74) along the guide groove (733); the baffle (76) is provided with an air outlet hole (761) facing the air distribution hole (732); and the burner (3) is connected to the air outlet hole (761).

7. The gas water heater according to claim 6, characterized in that: Both sides of the connection seat (73) are provided with air distribution holes (732), the number of the adjustment plates (74) is two, and the two adjustment plates (74) are connected to the adjustment block (741).

8. The gas water heater according to claim 7, characterized in that: The adjustment seat (751) comprises a connection plate (7511) arranged on the connection seat (73) and a U-shaped frame (7512) connected to the connection plate (7511); the U-shaped frame (7512) is provided with a connection foot (7513) bent outward; and the connection plate (7511) is provided with an avoidance hole (7514) for the adjustment plate (74) to be inserted into the guide groove (733).

9. The gas water heater according to claim 1, characterized in that: The water pipe (2) has a water inlet end (21) and a water outlet end (22), and a temperature controller (8) is provided on the water outlet end (22) of the water pipe (2).

10. The gas water heater according to claim 1, characterized in that: The smoke exhaust assembly (4) comprises a smoke collecting hood (41), and an exhaust pipe is connected to the smoke collecting hood (41).

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