A smoke exhaust component, a smoke exhaust structure and an outdoor gas water heater

Abstract

A smoke exhaust component, a smoke exhaust structure and an outdoor gas water heater. The smoke exhaust component includes a smoke exhaust pipe and a smoke exhaust nozzle connected to the smoke exhaust pipe, the smoke exhaust pipe and the smoke exhaust nozzle are combined to form a smoke exhaust channel for smoke circulation, the smoke exhaust channel forms a smoke inlet at one end of the smoke exhaust pipe away from the smoke exhaust nozzle, the smoke exhaust nozzle is provided with a first smoke exhaust port and a second smoke exhaust port connected to the smoke exhaust channel, the first smoke exhaust port is located above the second smoke exhaust port; a guide plate and a wind shield are provided in the smoke exhaust channel, the guide plate and the wind shield are separated by a preset distance; in the smoke exhaust direction of the first smoke exhaust port, the guide plate is located behind the first smoke exhaust port, and the guide plate is used to guide the wind blown in from the first smoke exhaust port to the second smoke exhaust port; in the smoke exhaust direction of the second smoke exhaust port, the wind shield is located behind the second smoke exhaust port, and the wind shield is used to block the wind blown in from the second smoke exhaust port. The present invention can effectively prevent backwind.

Description

Technical Field

[0001] The invention relates to the technical field of gas water heaters, in particular to a smoke exhaust component, a smoke exhaust structure and an outdoor gas water heater. Background Art

[0002] With the continuous development of gas water heater related technologies, the safety requirements for gas water heaters are also constantly increasing. The national requirements for gas water heaters have been raised to mandatory use of forced exhaust and prohibition of direct exhaust water heaters. In terms of smoke emission safety, the highest requirements are for outdoor gas water heaters. Therefore, it is necessary to improve the product performance and safety of outdoor gas water heaters.

[0003] Outdoor gas water heaters are generally installed outdoors, so they are easily affected by adverse weather such as rain and strong wind. When encountering windy weather, wind can easily flow back into the combustion chamber of the gas water heater from the smoke exhaust duct, affecting the operation of the burner, and in severe cases even causing the burner flame to go out. However, existing outdoor gas water heaters do not have effective measures to prevent backflow. Summary of the invention

[0004] The invention provides a smoke exhaust component, a smoke exhaust structure and an outdoor gas water heater, which can effectively prevent backdraft.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] According to a first aspect of the present invention, an embodiment of the present invention provides a smoke exhaust component, comprising a smoke exhaust pipe and a smoke exhaust nozzle connected to the smoke exhaust pipe, the smoke exhaust pipe and the smoke exhaust nozzle combined to form a smoke exhaust channel for smoke circulation, the smoke exhaust channel forms a smoke inlet at an end of the smoke exhaust pipe away from the smoke exhaust nozzle, the smoke exhaust nozzle is provided with a first smoke exhaust port and a second smoke exhaust port connected to the smoke exhaust channel, the first smoke exhaust port is located above the second smoke exhaust port; a guide plate and a wind shield are provided in the smoke exhaust channel, the guide plate and the wind shield are spaced a preset distance apart; in the smoke exhaust direction of the first smoke exhaust port, the guide plate is located behind the first smoke exhaust port, and the guide plate is used to guide the wind blown in from the first smoke exhaust port to the second smoke exhaust port; in the smoke exhaust direction of the second smoke exhaust port, the wind shield is located behind the second smoke exhaust port, and the wind shield is used to block the wind blown in from the second smoke exhaust port.

[0007] In some embodiments, the guide plate is arranged to be inclined relative to the smoke exhaust direction of the first smoke exhaust port, and in the smoke exhaust direction of the first smoke exhaust port, the guide plate gradually approaches the second smoke exhaust port.

[0008] In some embodiments, the wind shield is arranged to be inclined relative to the smoke exhaust direction of the second smoke exhaust port, and in the smoke exhaust direction of the second smoke exhaust port, the wind shield gradually approaches the first smoke exhaust port.

[0009] In some embodiments, a plurality of first guide plates are fixed to the top of the smoke exhaust channel in the smoke exhaust pipe, and a plurality of second guide plates are fixed to the bottom of the smoke exhaust channel in the smoke exhaust pipe. The first guide plates and the second guide plates are staggered in the extension direction of the smoke exhaust channel.

[0010] In some embodiments, both the first guide plate and the second guide plate are provided with a through smoke outlet, and the smoke outlet is covered with a mesh plate.

[0011] In some embodiments, the first guide plate and the second guide plate are both inclined; in the direction downward away from the top of the smoke exhaust channel, the first guide plate gradually approaches the outlet of the smoke exhaust pipe, and in the direction upward away from the bottom of the smoke exhaust channel, the second guide plate gradually approaches the outlet of the smoke exhaust pipe.

[0012] In some embodiments, the smoke exhaust pipe is composed of a cover plate and a water collecting plate arranged below the cover plate, and both sides of the water collecting plate are provided with protective plates integrally connected to the water collecting plate, and the two protective plates extend along the length direction of the water collecting plate; the cover plate is arranged between the two protective plates.

[0013] In some embodiments, the height of the water collecting plate at one end close to the smoke inlet is greater than the height of the water collecting plate at one end close to the smoke exhaust nozzle; and a plurality of drainage ports are provided at the bottom of the smoke exhaust nozzle.

[0014] According to the second aspect of the present invention, an embodiment of the present invention provides a smoke exhaust structure, including a smoke hood shell and a smoke exhaust assembly of any embodiment of the first part above, the surface of the smoke hood shell is provided with a mounting socket, and the smoke exhaust pipe is inserted into the mounting socket.

[0015] According to a third aspect of the present invention, an embodiment of the present invention provides an outdoor gas water heater, comprising a smoke exhaust assembly according to any one of the embodiments of the first part above.

[0016] The present invention has at least the following beneficial effects: the present invention is provided with a guide plate and a wind shield in the smoke exhaust channel, and the guide plate and the wind shield are spaced at a preset distance, so that smoke can flow in the space between the guide plate and the wind shield. When the outside wind blows in from the second smoke exhaust port, the wind shield blocks the wind blown in from the second smoke exhaust port, so that the wind cannot be further blown into the smoke exhaust channel. When the outside wind blows in from the first smoke exhaust port, the guide plate guides the wind blown in from the first smoke exhaust port to the second smoke exhaust port, so that the wind blows out from the second smoke exhaust port, thereby forming a circulating airflow, so that the wind blown in from the first smoke exhaust port is blown out from the second smoke exhaust port, thereby effectively preventing backwind. At the same time, the circulating airflow can drive the smoke in the smoke exhaust channel to be discharged from the second smoke exhaust port, so that the smoke can still be discharged under high pipe resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A schematic structural diagram of a smoke exhaust assembly according to an embodiment of the present invention;

[0018] Figure 2 A cross-sectional schematic diagram of a smoke exhaust assembly according to an embodiment of the present invention;

[0019] Figure 3 It is an exploded schematic diagram of a smoke exhaust assembly according to an embodiment of the present invention;

[0020] Figure 4 A schematic structural diagram of a smoke exhaust structure according to an embodiment of the present invention;

[0021] Figure 5 for Figure 4 The smoke exhaust structure shown is a schematic structural diagram at another viewing angle;

[0022] Figure 6 This is an exploded schematic diagram of a smoke exhaust structure according to an embodiment of the present invention;

[0023] Figure 7 A schematic structural diagram of a smoke exhaust structure according to another embodiment of the present invention;

[0024] Figure 8 It is an exploded schematic diagram of a smoke exhaust structure according to another embodiment of the present invention;

[0025] Fig. 9 This is a schematic structural diagram of a smoke exhaust nozzle and a face shell assembled together according to an embodiment of the present invention;

[0026] Fig.10 This is a schematic structural diagram of a smoke exhaust nozzle, a sealing ring and a face shell according to an embodiment of the present invention;

[0027] Fig.11 The figure is a schematic cross-sectional view of a sealing ring according to an embodiment of the present invention.

[0028] Wherein, the accompanying drawings are marked as follows:

[0029] Surface shell 100, smoke outlet 110, flange 111;

[0030] Sealing ring 200, elastic waterproof body 210, annular groove 220, peripheral body 230;

[0031] Smoke exhaust nozzle 300, first smoke exhaust port 311, second smoke exhaust port 312, mounting base plate 320, base plate mounting hole 321, drainage port 330, guide plate 340, wind shield plate 350;

[0032] Smoke exhaust pipe 400, cover plate 420, side plate 421, first bent plate 422, water collecting plate 430, guard plate 431, second bent plate 432;

[0033] Smoke outlet 501, first guide plate 510, second guide plate 520, first fixed bottom plate 530, second fixed bottom plate 540;

[0034] Fixed plate 600, opening 610, waterproof sealing ring 620, supporting plate 630, smoke-proof sealing ring 640, enclosure plate 650;

[0035] The smoke hood shell 700 , the smoke collecting chamber 710 , the assembly socket 720 , the surrounding edge 730 , the mounting hole 731 , and the mounting bracket 740 . DETAILED DESCRIPTION

[0036] The present disclosure provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the present disclosure as defined by the claims and their equivalents. The terms and words used in the following description and claims are not limited to the literal meanings, but are only used by the inventor to enable a clear and consistent understanding of the present disclosure. Therefore, it should be clear to those skilled in the art that the following description of the various embodiments of the present disclosure is provided only for illustration, and not for limiting the present disclosure as defined by the attached claims and their equivalents.

[0037] The terms "having", "may have", "include" or "may include" used in various embodiments of the present disclosure indicate the existence of the corresponding functions, operations, elements, etc. disclosed, but do not limit the additional one or more functions, operations, elements, etc. In addition, it should be understood that the terms "including" or "having" used in various embodiments of the present disclosure are intended to indicate the existence of the features, numbers, operations, elements, components, or combinations thereof described in the specification, but do not exclude the existence or addition of one or more other features, numbers, operations, elements, components, or combinations thereof.

[0038] Although the terms such as "first" and "second" used in various embodiments of the present disclosure can modify various elements of various embodiments, these terms do not limit the corresponding elements. For example, these terms do not limit the order and / or importance of the corresponding elements. These terms can be used to distinguish one element from another element. For example, without departing from the scope of rights of various embodiments of the present disclosure, the first element can be named as the second element, and similarly, the second element can be named as the first element.

[0039] It will be understood that when an element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0040] An embodiment of the present invention provides a smoke exhaust assembly, such as Figure 1-3As shown, it includes a smoke exhaust pipe 400 and a smoke exhaust nozzle 300 connected to the smoke exhaust pipe 400. The smoke exhaust pipe 400 can be a square tube, a round tube or other shapes. The smoke exhaust pipe 400 and the smoke exhaust nozzle 300 are both used for smoke exhaust, and both have channels inside. The smoke exhaust pipe 400 and the smoke exhaust nozzle 300 are combined to form a smoke exhaust channel for smoke circulation. The smoke exhaust channel forms a smoke inlet at one end of the smoke exhaust pipe 400 away from the smoke exhaust nozzle 300. The smoke exhaust nozzle 300 is provided with a first smoke exhaust port 311 and a second smoke exhaust port 312 connected to the smoke exhaust channel. The first smoke exhaust port 311 can be located above the second smoke exhaust port 312. The smoke enters the smoke exhaust channel from the smoke inlet and can eventually be discharged from the first smoke exhaust port 311 and the second smoke exhaust port 312.

[0041] A guide plate 340 and a wind shield 350 are provided in the smoke exhaust channel. The guide plate 340 and the wind shield 350 are spaced apart by a preset distance (the preset distance can be reasonably determined by a person skilled in the art according to actual conditions), so that smoke can flow in the space between the guide plate 340 and the wind shield 350. Specifically, the guide plate 340 and the wind shield 350 can be staggered in the extension direction of the smoke exhaust channel so that the guide plate 340 and the wind shield 350 are spaced apart by a preset distance.

[0042] The first smoke exhaust port 311 and the second smoke exhaust port 312 can both be used for exhausting smoke. Smoke is usually exhausted in a direction perpendicular to the plane where the smoke exhaust port is located. In this embodiment, the first smoke exhaust port 311 and the second smoke exhaust port 312 can both be arranged on the end surface of the smoke exhaust nozzle 300. Therefore, the exhaust direction of the first smoke exhaust port 311 ( Figure 2 The first smoke exhaust direction marked in (hereinafter referred to as the first smoke exhaust direction) and the second smoke exhaust direction of the smoke exhaust port 312 ( Figure 2 The second smoke exhaust direction marked in (hereinafter referred to as the second smoke exhaust direction) is perpendicular to the end surface of the smoke exhaust nozzle 300 and points outward.

[0043] In the second smoke exhaust direction, the wind shield 350 is located behind the second smoke exhaust port 312. When the outside wind blows in from the second smoke exhaust port 312, the wind shield 350 is used to block the wind blown in from the second smoke exhaust port 312, so that the wind cannot blow further into the smoke exhaust channel. In the first smoke exhaust direction, the guide plate 340 is located behind the first smoke exhaust port 311. When the outside wind blows in from the first smoke exhaust port 311, the guide plate 340 is used to guide the wind blown in from the first smoke exhaust port 311 to the second smoke exhaust port 312, so that the wind blows out from the second smoke exhaust port 312, thereby forming a circulating airflow, so that the wind blown in from the first smoke exhaust port 311 is blown out from the second smoke exhaust port 312 (such as Figure 2 The wind direction is indicated by the solid arrow in the figure), which can effectively prevent backdraft.

[0044] At the same time, when there is no wind outside, the first smoke exhaust port 311 and the second smoke exhaust port 312 can exhaust smoke at the same time. When there is wind outside, the circulating airflow blown in from the first smoke exhaust port 311 and blown out from the second smoke exhaust port 312 can drive the smoke in the smoke exhaust channel to be discharged from the second smoke exhaust port 312, so that the smoke can still be discharged under the condition of high pipeline resistance.

[0045] In some embodiments, the guide plate 340 is tilted relative to the first smoke exhaust direction, and in the first smoke exhaust direction, the guide plate 340 gradually approaches the second smoke exhaust port 312 , thereby guiding the wind blown in from the first smoke exhaust port 311 to the second smoke exhaust port 312 .

[0046] Furthermore, in the height direction of the first smoke exhaust port 311 , the guide plate 340 extends to below the first smoke exhaust port 311 , so that the wind blown in from the first smoke exhaust port 311 is guided to the second smoke exhaust port 312 , effectively avoiding air leakage.

[0047] In some embodiments, the windshield 340 is arranged obliquely relative to the smoke exhaust direction of the second smoke exhaust port 312, and in the second smoke exhaust direction, the windshield 340 gradually approaches the first smoke exhaust port 311. The windshield 340 of this embodiment not only has the function of blocking wind, but also can guide the wind blown in from the second smoke exhaust port 312 to be blown out from the second smoke exhaust port 312 due to its oblique structure.

[0048] A smoke exhaust cavity is provided in the smoke exhaust pipe 400, and the smoke exhaust cavity is the part of the smoke exhaust passage in the smoke exhaust pipe 400. The smoke exhaust cavity forms a smoke inlet at one end of the smoke exhaust pipe 400, and forms an outlet connected to the smoke exhaust nozzle 300 at the other end of the smoke exhaust pipe 400. A plurality of first guide plates 510 are fixed to the top of the smoke exhaust cavity, and all the first guide plates 510 can be distributed along the extension direction of the smoke exhaust cavity, and the spacing between two adjacent first guide plates 510 can be equal. A plurality of second guide plates 520 are fixed to the bottom of the smoke exhaust cavity, and all the second guide plates 520 can be distributed along the extension direction of the smoke exhaust cavity, and the spacing between two adjacent second guide plates 520 can be equal. The first guide plates 510 and the second guide plates 520 are staggered in the extension direction of the smoke exhaust cavity, so that a large gap is reserved between the first guide plates 510 and the second guide plates 520 for smoke flow, so that the smoke can finally be discharged from the outlet. The first guide plate 510 and the second guide plate 520 can both block rainwater, which can effectively prevent rainwater from entering the outdoor gas water heater through the smoke exhaust pipe 400, and the waterproof effect is better. At the same time, the first guide plate 510 and the second guide plate 520 can also block the wind blown in through the smoke exhaust nozzle 300, further improving the anti-backwind effect.

[0049] In some embodiments, both the first guide plate 510 and the second guide plate 520 are provided with a through smoke port 501, and the smoke port 501 is covered with a mesh plate, which can be a filter with a small aperture, and has an adsorption effect on water mist, so that the splashing water mist is intercepted by the mesh plate and cannot enter the gas water heater with the air flow, thereby enhancing the waterproof effect. At the same time, the mesh holes on the mesh plate can allow smoke to pass through, which can shorten the smoke exhaust path and speed up the smoke exhaust speed.

[0050] In some embodiments, the first guide plate 510 and the second guide plate 520 are both inclined. In the direction away from the top of the smoke exhaust chamber downward, the first guide plate 510 gradually approaches the outlet of the smoke exhaust pipe 400, and in the direction away from the bottom of the smoke exhaust chamber upward, the second guide plate 520 gradually approaches the outlet of the smoke exhaust pipe 400. The direction away from the top of the smoke exhaust chamber downward can be perpendicular to the extension direction of the smoke exhaust chamber and downward, and the direction away from the bottom of the smoke exhaust chamber upward can be perpendicular to the extension direction of the smoke exhaust chamber and upward. This embodiment can facilitate the flow of smoke from the inlet to the outlet, making the smoke flow smoother. At the same time, the first guide plate 510 and the second guide plate 520 have a better blocking effect on the wind blown into the smoke exhaust pipe 400 from the outside.

[0051] In some embodiments, the sum of the height of the first guide plate 510 relative to the top of the smoke exhaust cavity and the height of the second guide plate 520 relative to the bottom of the smoke exhaust cavity is greater than the height of the smoke exhaust cavity. The height of the first guide plate 510 relative to the top of the smoke exhaust cavity refers to the height of the first guide plate 510 in the direction perpendicular to the extension of the smoke exhaust cavity; the height of the second guide plate 520 relative to the bottom of the smoke exhaust cavity refers to the height of the second guide plate 520 in the direction perpendicular to the extension of the smoke exhaust cavity; the height of the smoke exhaust cavity can specifically be the distance from the bottom of the smoke exhaust cavity to the top of the smoke exhaust cavity. Therefore, rainwater moving along the extension direction of the smoke exhaust cavity at any position in the smoke exhaust cavity will be blocked by the first guide plate 510 or the second guide plate 520, further improving the waterproof effect.

[0052] In some embodiments, the first guide plate 510 is connected to the first fixed bottom plate 530, and the second guide plate 520 is connected to the second fixed bottom plate 540. Specifically, the first guide plate 510 and the first fixed bottom plate 530 can be connected in an integrated manner, and the second guide plate 520 and the second fixed bottom plate 540 can be connected in an integrated manner. The first fixed bottom plate 530 can be fixed closely to the top of the smoke exhaust cavity by welding, and the second fixed bottom plate 540 can also be fixed closely to the bottom of the smoke exhaust cavity by welding. Through this fixing method, the first guide plate 510 and the second guide plate 520 are fixed more firmly.

[0053] In some embodiments, the smoke exhaust pipe 400 is fixed on the fixed plate 600 and extends to the back side of the fixed plate 600, the smoke exhaust nozzle 300 is fixed on the front side of the fixed plate 600, and an opening 610 connecting the smoke exhaust pipe 400 and the smoke exhaust nozzle 300 is provided on the fixed plate 600. The smoke in the smoke exhaust pipe 400 will flow through the opening 610 of the fixed plate 600 and then flow to the smoke exhaust nozzle 300.

[0054] Considering the difference in shape and size between the smoke exhaust pipe 400 and the smoke exhaust nozzle 300 , it is not convenient to directly connect the two. In this embodiment, a fixing plate 600 is provided to facilitate the combination and fixing of the smoke exhaust pipe 400 and the smoke exhaust nozzle 300 together.

[0055] The guide plate 340 can be fixed on the front side of the fixing plate 600, and the wind shield 350 can be fixed in the smoke exhaust pipe 400, thereby realizing the staggered arrangement of the guide plate 340 and the wind shield 350 in the extension direction of the smoke exhaust channel, so that the guide plate 340 and the wind shield 350 are spaced a preset distance apart.

[0056] The end of the smoke exhaust nozzle 300 close to the smoke exhaust pipe 400 may be provided with a mounting base plate 320, and the mounting base plate 320 may be closely fixed to the front side of the fixing plate 600. Specifically, the mounting base plate 320 may be provided with a base plate mounting hole 321, and the fixing plate 600 may be provided with a corresponding threaded hole, so that the mounting base plate 320 may be fixed to the front side of the fixing plate 600 by screws.

[0057] A support plate 630 may be provided at the bottom of the fixing plate 600 , and the bottom of the mounting base plate 320 abuts against the upper surface of the support plate 630 , supporting the mounting base plate 320 , so that the mounting base plate 320 is fixed more stably.

[0058] A waterproof sealing ring 620 may be provided between the installation base plate 320 and the fixing plate 600 to enhance the sealing between the smoke exhaust nozzle 300 and the fixing plate 600 and further improve the waterproof effect.

[0059] The top and both sides of the fixing plate 600 are provided with a bent enclosure 650, and the enclosure 650 and the support plate 630 are arranged around the installation base plate 320. The enclosure 650 and the support plate 630 limit the waterproof sealing ring 620, so as to facilitate the correct placement of the waterproof sealing ring 620. The installation base plate 320, the waterproof sealing ring 620 and the fixing plate 600 can be integrally locked and fixed by screws to simplify the installation structure.

[0060] In some embodiments, the smoke exhaust pipe 400 includes a cover plate 420 and a water collecting plate 430 disposed below the cover plate 420. Specifically, the smoke exhaust pipe 400 can be formed by combining the cover plate 420 and the water collecting plate 430 disposed below the cover plate 420. The first deflector 510 is fixed to the cover plate 420, the second deflector 520 is fixed to the water collecting plate 430, and the wind deflector 350 can also be fixed to the front end of the water collecting plate 430.

[0061] As Figure 3 shown, side plates 421 extending along the length direction thereof can be disposed on both sides of the cover plate 420. The cover plate 420 and the side plates 421 can be integrally connected. The cross-sectional shapes of the cover plate 420 and the side plates 421 can be in a "U" shape. Guard plates 431 extending along the length direction thereof can be disposed on both sides of the water collecting plate 430. The water collecting plate 430 and the guard plates 431 can be integrally connected. The cross-sectional shapes of the water collecting plate 430 and the guard plates 431 can be in a "U" shape. The cover plate 420 and the two side plates 421 can be located between the two guard plates 431, and the bottoms of the two side plates 421 can abut against the water collecting plate 430, thereby forming a rectangular smoke exhaust pipe 400. With this structure, the water entering the smoke exhaust pipe 400 can be prevented from leaking from both sides of the water collecting plate 430, further improving the waterproof effect.

[0062] Further, the water collecting plate 430 is inclined, and the height of the end of the water collecting plate 430 close to the smoke inlet is greater than the height of the end of the water collecting plate 430 close to the smoke outlet 300. Even if rainwater enters the smoke exhaust cavity, under the action of its own gravity, the rainwater will flow towards the outlet of the smoke exhaust pipe 400 and will not flow towards the inside of the gas water heater, further enhancing the waterproof effect.

[0063] Furthermore, a plurality of drain ports 330 are provided at the bottom of the smoke outlet 300, and the water accumulated on the water collecting plate 430 can be discharged from the drain ports 330 to prevent water from accumulating in the smoke exhaust pipe 400 and affecting smoke exhaust.

[0064] In some embodiments, one end of the cover plate 420 close to the smoke outlet 300 is bent upward to form a first bent plate 422. The first bent plate 422 can pass through the opening 610 and be tightly fixed to the front side of the fixing plate 600. One end of the water collecting plate 430 close to the smoke outlet 300 is bent downward to form a second bent plate 432. The second bent plate 432 can pass through the opening 610 and be tightly fixed to the front side of the fixing plate 600. Through this structure, the cover plate 420 and the water collecting plate 430 can be fixed to the fixing plate 600. Further, both the first bent plate 422 and the second bent plate 432 can extend between the waterproof sealing ring 620 and the fixing plate 600 to enhance the waterproof property.

[0065] An embodiment of the present invention further provides a smoke exhaust structure, as Figure 4-6As shown, based on the smoke exhaust assembly of any of the above embodiments, it further includes a smoke hood housing 700, the smoke hood housing 700 has a smoke collecting chamber 710, the smoke collecting chamber 710 forms a smoke inlet at the bottom of the smoke hood housing 700, and the front side of the smoke hood housing 700 is provided with an assembly socket 720 connected to the smoke collecting chamber 710. The smoke hood housing 700 is fixed on the top of the gas water heater, specifically, it can be fixed on the water tank of the gas water heater, and is used to collect smoke generated by the burner, and the smoke will enter the smoke collecting chamber 710 from the smoke inlet.

[0066] The smoke exhaust pipe 400 is inserted into the assembly socket 720 and can extend into the smoke collecting chamber 710 to form a pull-out structure. The shape and size of the assembly socket 720 are respectively adapted to the cross-sectional shape and cross-sectional size of the smoke exhaust pipe 400 .

[0067] In this embodiment, the smoke exhaust pipe 400 is inserted into the assembly socket 720 of the smoke hood shell 700, so that the smoke exhaust assembly and the smoke hood shell 700 can be combined, making it more convenient to assemble the smoke exhaust assembly and the smoke hood shell 700. After the smoke exhaust assembly and the smoke hood shell 700 are assembled, the smoke in the smoke collecting chamber 710 can flow into the smoke exhaust pipe 400 and finally be discharged from the smoke exhaust port on the smoke exhaust nozzle 300.

[0068] At the same time, for different models of gas water heaters, it is only necessary to reserve a corresponding assembly socket 720 on the smoke hood shell 700, so that the same smoke exhaust component can be assembled on the smoke hood shell 700 of different models of gas water heaters, thereby improving the applicability of the smoke exhaust component.

[0069] In some embodiments, the bottom of the smoke hood housing 700 is provided with a peripheral edge 730 protruding from the side wall of the smoke hood housing 700, and the peripheral edge 730 is arranged around the smoke inlet. The smoke hood housing 700 can be fixed on the gas water heater through the peripheral edge 730, and at the same time, the sealing performance can also be enhanced.

[0070] Furthermore, the support plate 630 at the bottom of the fixing plate 600 is placed on the surrounding edge 730. The surrounding edge 730 supports the support plate 630, so that after the smoke exhaust pipe 400 is inserted into the smoke collecting cavity 710, the smoke exhaust assembly can remain stable.

[0071] In some embodiments, the surrounding edge 730 can be fixed to the gas water heater by welding. In other embodiments, a plurality of mounting holes 731 are provided on the surrounding edge 730, and fixing holes corresponding to the mounting holes 731 are provided on the gas water heater. Screws can be fixed in the mounting holes 731 and the fixing holes, and the smoke hood housing 700 is fixed to the gas water heater by screws.

[0072] In some embodiments, a smoke-proof sealing ring 640 is fixed to the back side of the fixing plate 600, and the smoke-proof sealing ring 640 is sleeved on the outside of the smoke exhaust pipe 400, and the smoke-proof sealing ring 640 abuts against the front side of the smoke hood shell 700. The smoke-proof sealing ring 640 is used to improve the sealing between the smoke exhaust component and the smoke hood shell 700, and prevent smoke from leaking from the gap between the smoke exhaust component and the smoke hood shell 700.

[0073] In some embodiments, mounting brackets 740 are fixed to both sides of the smoke hood shell 700, and the smoke hood shell 700 can be further mounted and fixed by the mounting brackets 740, so that the smoke hood shell 700 remains stable after installation.

[0074] The embodiment of the present invention also provides another smoke exhaust structure, based on the smoke exhaust structure of any of the above embodiments, such as Figure 7 and 8 As shown, the smoke exhaust structure of this embodiment further includes a face shell 100 , and the face shell 100 is provided with a through smoke outlet 110 , and the smoke exhaust nozzle 300 is inserted into the smoke outlet 110 .

[0075] In order to improve the aesthetics, the smoke exhaust system of some gas water heaters is integrated inside the gas water heater. Such gas water heaters usually have a housing 100 to hide the smoke exhaust system. In this embodiment, the smoke exhaust nozzle 300 is directly plugged into the smoke outlet 110 of the housing 100. This installation method facilitates the quick assembly of the smoke exhaust nozzle 300 and the housing 100, which helps to improve the production efficiency of the gas water heater.

[0076] Furthermore, the smoke outlet 110 is provided with a sealing ring 200, which can improve the sealing between the smoke exhaust nozzle 300 and the surface shell 100, thereby preventing rainwater from flowing into the gas water heater through the gap between the smoke exhaust nozzle 300 and the surface shell 100.

[0077] The structure of the sealing ring 200 will be described in detail below. Figure 9-11 As shown, the sealing ring 200 is fixed to the smoke outlet 110. Specifically, the sealing ring 200 can surround the smoke outlet 110. A central hole is provided in the middle of the sealing ring 200 for the smoke outlet 300 to be inserted. The central hole is naturally aligned with the smoke outlet 110. When the smoke outlet 110 is a circular opening, the central hole is coaxially arranged with the smoke outlet 110. An elastic waterproof body 210 protruding from the inner wall of the central hole is provided on the inner wall of the central hole, and the elastic waterproof body 210 surrounds the inner wall of the central hole. The smoke outlet 300 is inserted into the central hole, and the elastic waterproof body 210 can be elastically deformed. Therefore, the elastic waterproof body 210 can be elastically deformed as the contour of the outer surface of the smoke outlet 300 changes, so as to be closely attached to the outer surface of the smoke outlet 300, play a sealing role, and prevent water from flowing into the water heater from between the smoke outlet 300 and the face shell 100.

[0078] In this embodiment, the elastic waterproof body 210 can be integrally connected with the sealing ring 200, and both the elastic waterproof body 210 and the sealing ring 200 can be made of silicone, rubber or other soft materials.

[0079] In some embodiments, the caliber of the elastic waterproof body 210 gradually decreases in the plugging direction of the smoke exhaust nozzle 300. The smoke exhaust nozzle 300 is usually inserted from the inner side of the face shell 100 into the smoke outlet 110 of the face shell 100, so the plugging direction of the smoke exhaust nozzle 300 is from the inner side of the face shell 100 to the outer side, and is usually parallel to the axial direction of the center hole. The caliber of the elastic waterproof body 210 of this embodiment gradually decreases in the plugging direction of the smoke exhaust nozzle 300, and the cross-sectional shape of the elastic waterproof body 210 can be similar to a truncated cone, which facilitates the smooth insertion of the smoke exhaust nozzle 300 into the center hole of the sealing ring 200. At the same time, the contact area between the elastic waterproof body 210 and the smoke exhaust nozzle 300 can be increased to further improve the sealing effect.

[0080] In some embodiments, the thickness of the elastic waterproof body 210 gradually decreases in the direction of protruding from the inner wall of the center hole. Since the elastic waterproof body 210 protrudes from the inner wall of the center hole, the direction in which it protrudes from the inner wall of the center hole refers to the direction in which it extends from the inner wall of the center hole to the center of the center hole. It is well known that when the thickness of the elastic body decreases, its elastic deformation will increase. Therefore, the elastic deformation of the inner side of the elastic waterproof body 210 of this embodiment that directly contacts the smoke exhaust nozzle 300 is larger, and it is easier to deform with the change of the outer surface contour of the smoke exhaust nozzle 300, so as to be closely attached to the outer surface of the smoke exhaust nozzle 300.

[0081] In some embodiments, the sealing ring 200 is provided with an inwardly concave annular groove 220, the annular groove 220 surrounds the sealing ring 200, and the face shell 100 is provided with an inwardly curved flange 111 at the smoke outlet 110, the bending angle may be 90°, and the flange 111 surrounds the smoke outlet 110. The flange 111 is inserted into the annular groove 220, thereby fixing the sealing ring 200 to the smoke outlet 110. At the same time, this structure can also improve the sealing between the sealing ring 200 and the face shell 100.

[0082] Furthermore, the insertion direction of the flange 111 into the annular groove 220 is opposite to the insertion direction of the smoke exhaust nozzle 300 into the central hole. When the smoke exhaust nozzle 300 is inserted into the central hole, the smoke exhaust nozzle 300 drives the sealing ring 200 to move slightly along the insertion direction of the smoke exhaust nozzle 300, so that the flange 111 can be tightly inserted into the annular groove 220.

[0083] Furthermore, the width of the annular groove 220 gradually decreases in the insertion direction of the flange 111 , so that the flange 111 can be smoothly inserted into the annular groove 220 .

[0084] In some embodiments, the outer side of the sealing ring 200 is provided with an outer peripheral body 230, which may be annular and integrally connected with the sealing ring 200, and the ring is arranged on the outer side of the sealing ring 200, and the outer peripheral body 230 is fixed on the face shell 100. In this embodiment, on the basis of the flange 111 being inserted into the annular groove 220, the sealing ring 200 is further fixed on the face shell 100 through the outer peripheral body 230, thereby enhancing the stability of the fixing of the sealing ring 200 to the face shell 100, and at the same time, further enhancing the sealing between the sealing ring 200 and the face shell 100.

[0085] Specifically, the peripheral body 230 can be adhered to the face shell 100 by means of adhesive, and specifically, strong adhesive can be used to enhance the adhesive force.

[0086] An embodiment of the present invention further provides an outdoor gas water heater, which includes a smoke exhaust assembly according to any one of the above embodiments.

[0087] An embodiment of the present invention further provides an outdoor gas water heater, which includes the smoke exhaust structure of any of the above embodiments.

[0088] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A smoke exhaust assembly, characterized in that: The smoke exhaust duct comprises a smoke exhaust pipe and a smoke exhaust nozzle connected to the smoke exhaust pipe, wherein the smoke exhaust pipe and the smoke exhaust nozzle are combined to form a smoke exhaust channel for smoke circulation, the smoke exhaust channel forms a smoke inlet at one end of the smoke exhaust pipe away from the smoke exhaust nozzle, the smoke exhaust nozzle is provided with a first smoke exhaust port and a second smoke exhaust port connected to the smoke exhaust channel, the first smoke exhaust port is located above the second smoke exhaust port; a guide plate and a wind shield are provided in the smoke exhaust channel, the guide plate and the wind shield are spaced apart by a preset distance; in the smoke exhaust direction of the first smoke exhaust port, the guide plate is located behind the first smoke exhaust port, and the guide plate is used to guide the wind blown in from the first smoke exhaust port to the second smoke exhaust port; in the smoke exhaust direction of the second smoke exhaust port, the wind shield is located behind the second smoke exhaust port, and the wind shield is used to block the wind blown in from the second smoke exhaust port; A plurality of first guide plates are fixed to the top of the smoke exhaust channel in the smoke exhaust pipe, and a plurality of second guide plates are fixed to the bottom of the smoke exhaust channel in the smoke exhaust pipe. The first guide plates and the second guide plates are staggered in the extension direction of the smoke exhaust channel.

2. The smoke exhaust assembly according to claim 1, characterized in that: The guide plate is arranged obliquely relative to the smoke exhaust direction of the first smoke exhaust port, and in the smoke exhaust direction of the first smoke exhaust port, the guide plate gradually approaches the second smoke exhaust port.

3. The smoke exhaust assembly according to claim 1, characterized in that: The wind shield is arranged obliquely relative to the smoke exhaust direction of the second smoke exhaust port, and in the smoke exhaust direction of the second smoke exhaust port, the wind shield gradually approaches the first smoke exhaust port.

4. The smoke exhaust assembly according to claim 1, characterized in that: The first guide plate and the second guide plate are both provided with a through smoke outlet, and the smoke outlet is covered with a mesh plate.

5. The smoke exhaust assembly according to claim 1, characterized in that: The first guide plate and the second guide plate are both inclined; in the direction downward away from the top of the smoke exhaust channel, the first guide plate gradually approaches the outlet of the smoke exhaust pipe, and in the direction upward away from the bottom of the smoke exhaust channel, the second guide plate gradually approaches the outlet of the smoke exhaust pipe.

6. The smoke exhaust assembly according to any one of claims 1 to 5, characterized in that: The smoke exhaust pipe is composed of a cover plate and a water collecting plate arranged below the cover plate. Guard plates integrally connected to the water collecting plate are arranged on both sides of the water collecting plate. Both guard plates extend along the length direction of the water collecting plate. The cover plate is arranged between the two guard plates.

7. The smoke exhaust assembly according to claim 6, characterized in that: The height of the water collecting plate at one end close to the smoke inlet is greater than the height of the water collecting plate at one end close to the smoke exhaust nozzle; and a plurality of drainage ports are arranged at the bottom of the smoke exhaust nozzle.

8. A smoke exhaust structure, characterized in that: It comprises a smoke hood shell and a smoke exhaust assembly according to any one of claims 1 to 7, wherein a mounting socket is arranged on the surface of the smoke hood shell, and the smoke exhaust pipe is inserted into the mounting socket.

9. An outdoor gas water heater, characterized in that: Comprising a smoke exhaust assembly as described in any one of claims 1-7.

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