Smoke exhaust device, condenser assembly and gas water heating equipment

Abstract

The utility model belongs to the technical field of gas water heating equipment, and discloses a smoke exhaust device, a condenser assembly and gas water heating equipment. The smoke exhaust device comprises a smoke collecting hood and a smoke opening structure. And a first smoke outlet is formed in the front side wall of the smoke collecting hood. The smoke port structure is arranged outside the smoke collecting hood and connected with the front side wall of the smoke collecting hood, a second smoke outlet communicated with the first smoke outlet is formed in the end, connected with the smoke collecting hood, of the smoke port structure, and a folded edge extending into the first smoke outlet is arranged at the position, on the lower wall of the second smoke outlet, of the smoke port structure and obliquely arranged upwards. A smoke outlet is formed in the end, away from the smoke collecting hood, of the smoke outlet structure. The smoke exhaust device can effectively block rainwater, so that the rainwater cannot be directly splashed into the smoke collecting hood, the rainwater is effectively prevented from flowing backwards, and the waterproof performance is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of gas-fired water heating equipment, and in particular to a flue gas exhaust device, a condenser assembly, and a gas-fired water heating equipment. Background Technology

[0002] When a gas-fired water heater is in use, the high-temperature flue gas from the burner is heated by a heat exchanger and then condensed into liquid by the condenser assembly. The heat released by the condensation of the water vapor and the heat from the cooling of the flue gas are absorbed by the cold water, thereby improving energy efficiency. The exhaust system of the condenser assembly in existing outdoor gas-fired water heaters generally includes a smoke hood and an exhaust component. The exhaust component has an exhaust port that connects to the exhaust port of the smoke hood. To prevent rainwater from entering the smoke hood through the exhaust port and then through the exhaust port, a movable plate is usually installed inside the smoke hood as a rainproof mechanism. During exhaust, the movable plate swings towards the exhaust port under the action of the flue gas to allow the flue gas to escape. When wind or rain blows in, the movable plate blocks the wind and rain from flowing into the smoke hood.

[0003] The movable plate in the above structure involves many components, has a relatively complex structure, and is inconvenient to install, which increases costs and smoke exhaust resistance. Utility Model Content

[0004] One of the technical problems to be solved by this utility model is to provide a smoke exhaust device that can ensure the rainproof performance and smooth smoke exhaust of outdoor gas water heating equipment while controlling costs.

[0005] The second technical problem to be solved by this utility model is to provide a condenser assembly that can ensure the rainproof performance and smooth smoke exhaust of outdoor gas water heating equipment while controlling costs.

[0006] The third technical problem to be solved by this utility model is to provide a gas-fired hot water device that can solve the problem of low waterproof rating of the exhaust device in the prior art and improve the waterproof performance.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] Smoke extraction device, including:

[0009] A smoke collection hood, wherein a first smoke outlet is provided on the front side wall of the smoke collection hood;

[0010] A smoke outlet structure is disposed outside the smoke collection hood and connected to the front side wall of the smoke collection hood; one end of the smoke outlet structure connected to the smoke collection hood is provided with a second smoke outlet communicating with the first smoke outlet, and the lower wall of the second smoke outlet is provided with a folded edge extending into the first smoke outlet and inclined upward; one end of the smoke outlet structure away from the smoke collection hood is provided with a smoke exhaust port, and the smoke exhaust port is connected to the second smoke outlet.

[0011] The smoke extraction device described in this utility model has the following advantages compared with the prior art:

[0012] By providing a folded edge extending into the first smoke outlet at the end where the flue structure connects to the smoke hood, and with the folded edge angled upwards, rainwater splashing is effectively blocked, preventing it from directly entering the smoke hood and thus providing basic protection against backflow. Since the flue structure is located outside the smoke hood and connected to its front wall, the folded edge covers the gap between the flue structure and the front wall as it extends inwards. When rainwater splashes onto the folded edge, it flows directly downwards into the flue structure, preventing rainwater from entering the gas-fired water heater through the gap between the flue structure and the smoke hood, thus improving overall waterproofing. Simultaneously, because the folded edge remains stationary, it does not completely seal the exhaust channel regardless of the gas-fired water heater's state, ensuring smooth exhaust and effectively reducing resistance. In summary, this embodiment of the invention, through the simple yet ingenious angled folded edge design, effectively controls costs and reduces exhaust resistance while ensuring the rainproof performance of the gas-fired water heater.

[0013] In one embodiment, one or more smoke vents are provided. When there is one smoke vent, the upper wall of the smoke vent is lower than the top of the folded edge in the vertical direction. When there are multiple smoke vents, the uppermost smoke vent has an upper wall that is lower than the top of the folded edge in the vertical direction.

[0014] In one embodiment, the distance H between the upper wall of the exhaust port and the top of the folded edge is 5mm-10mm.

[0015] In one embodiment, the smoke outlet structure includes an interconnected but separate smoke exhaust connector and a smoke exhaust component. The smoke exhaust connector is connected to the front sidewall of the smoke collection hood, and the end of the smoke exhaust connector connected to the smoke collection hood is provided with a second smoke outlet. The end of the smoke exhaust component away from the smoke exhaust connector is provided with the smoke exhaust outlet.

[0016] In one embodiment, the smoke exhaust connector and the smoke exhaust component are respectively provided with a first protrusion and a second protrusion on opposite sides. The first protrusion and the second protrusion are respectively provided with a first recessed groove and a second recessed groove that communicate with each other. The bottom of the first recessed groove is provided with a second smoke outlet, and the bottom of the second recessed groove is provided with the smoke exhaust outlet.

[0017] In one embodiment, the first protrusion and the second protrusion are staggered vertically.

[0018] The second technical problem mentioned above is solved by the following technical solution:

[0019] The condenser assembly includes a condenser box and a smoke exhaust device as described in any of the above embodiments. The condenser box is provided with a smoke inlet channel and a condensation chamber. The smoke collection hood is disposed on the condenser box and covers the condensation chamber and the outlet of the smoke inlet channel.

[0020] The condenser assembly provided by this utility model has the following advantages compared with the prior art:

[0021] By installing a smoke guide component, rainwater backflow can be effectively prevented, thus improving the waterproof performance of the condenser assembly.

[0022] In one embodiment, a smoke baffle is further included within the smoke collection hood. The smoke baffle includes a horizontal connecting plate and a vertical baffle connected to each other. A vertical fixing plate on the horizontal connecting plate, at one end away from the vertical baffle, is connected to the front sidewall of the smoke collection hood. The vertical fixing plate is located below the first smoke outlet, and the horizontal connecting plate is located above the outlet of the smoke inlet channel. The vertical baffle extends into the condensation chamber to divide the condensation chamber into two chambers, each of which is equipped with a condensation heat exchange tube.

[0023] In one embodiment, the inner wall of the condensation chamber is provided with an insertion guide groove, and the vertical baffle is inserted into the insertion guide groove.

[0024] In one embodiment, an inclined plate is provided between the horizontal connecting plate and the vertical fixing plate, and the included angle A between the inclined plate and the front sidewall of the smoke collection hood is an obtuse angle.

[0025] And / or, the inclined plate and the folded edge are fitted together.

[0026] The third technical problem mentioned above is solved by the following technical solution:

[0027] A gas-fired water heater includes a burner, a heat exchange device, and a condenser assembly as described in any of the above embodiments. The flue gas generated by the burner from burning gas is heat-exchanged by the heat exchange device, then condensed by the condenser assembly and discharged.

[0028] The gas-fired water heater provided by this utility model has the following advantages compared with the prior art:

[0029] This gas-fired water heater, through the aforementioned condenser assembly, can effectively reduce exhaust resistance, improve the smooth flow of flue gas, and also effectively prevent rainwater backflow, thus improving waterproof performance. Attached Figure Description

[0030] Figure 1 This is an exploded view of the condenser assembly provided in this embodiment of the present invention;

[0031] Figure 2 This is a cross-sectional view of the condenser assembly provided in this embodiment of the present utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the smoke exhaust connector involved in the embodiment of this utility model;

[0033] Figure 4 This is a schematic diagram of the smoke-blocking component involved in the embodiment of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the gas-fired water heater provided in this embodiment of the utility model.

[0035] In the picture:

[0036] 1. Condenser assembly; 11. Condenser box; 111. Smoke inlet channel; 112. Condenser chamber; 113. Insert guide groove; 12. Smoke hood; 121. First smoke outlet; 13. Smoke outlet structure; 131. Smoke exhaust connector; 1311. Second smoke outlet; 1312. Folded edge; 1313. First protrusion; 1314. Triangular plate; 132. Smoke exhaust component; 1321. Smoke exhaust port; 1322. Second protrusion; 14. Smoke baffle; 141. Horizontal connecting plate; 1411. Inclined plate; 1412. Vertical fixing plate; 142. Vertical baffle; 15. Condenser heat exchange tube;

[0037] 2. Burner;

[0038] 3. Heat exchange device. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] like Figures 1-4 As shown, this embodiment of the present invention provides a condenser assembly 1 applicable to gas-fired water heating equipment, which includes a condenser box 11 and a flue gas exhaust device provided in this embodiment. The flue gas exhaust device includes a smoke collection hood 12 and a smoke outlet structure 13.

[0044] The condenser box 11 is equipped with a flue gas inlet channel 111 and a condenser chamber 112. The condenser chamber 112 contains a condenser heat exchanger tube 15 for heat exchange with the high-temperature flue gas. The high-temperature flue gas enters through the inlet of the flue gas inlet channel 111 and then enters the condenser chamber 112 through the outlet of the flue gas inlet channel 111 for heat exchange. The heat-exchanged flue gas then enters the flue gas collection hood 12 and is discharged through the flue gas outlet structure 13. In this embodiment, the condenser heat exchanger tube 15 can be selected as a condenser stainless steel corrugated pipe.

[0045] A smoke hood 12 is mounted on a condenser box 11 and covers the outlet of the condenser chamber 112 and the smoke inlet channel 111. A first smoke outlet 121 is provided on the front side wall of the smoke hood 12. A smoke outlet structure 13 is located outside the smoke hood 12 and connected to the front side wall of the smoke hood 12. One end of the smoke outlet structure 13 connected to the smoke hood 12 is provided with a second smoke outlet 1311 that communicates with the first smoke outlet 121. A folded edge 1312 extending into the first smoke outlet 121 is provided on the lower wall of the second smoke outlet 1311 of the smoke outlet structure 13. The folded edge 1312 is inclined upward. A smoke exhaust port 1321 that communicates with the second smoke outlet 1311 is provided on the end of the smoke outlet structure 13 away from the smoke hood 12.

[0046] By providing a folded edge 1312 extending into the first smoke outlet 121 at one end of the smoke outlet structure 13 connected to the smoke hood 12, and the folded edge 1312 being inclined upwards, rainwater can be effectively blocked during splashing, making it difficult for rainwater to splash directly into the smoke hood 12, thus achieving a basic effect of preventing rainwater backflow. Furthermore, the folded edge 1312 has a simple structure, is easy to manufacture, has a significant waterproof effect, and can reduce costs. Since the smoke outlet structure 13 is located outside the smoke hood 12 and connected to the front side wall of the smoke hood 12, the folded edge 1312 extends into the smoke hood 12... When extended, the folded edge 1312 covers the gap between the flue structure 13 and the front side wall of the smoke hood 12. When rainwater splashes onto the folded edge 1312, it flows directly down into the flue structure 13, preventing rainwater from entering the gas water heater through the gap between the flue structure 13 and the smoke hood 12, thus improving the overall waterproof performance. Simultaneously, since the folded edge 1312 does not move, it will not completely seal the exhaust channel regardless of the gas water heater's state, ensuring smooth exhaust and effectively reducing resistance. In summary, this embodiment of the invention, through the simple yet ingenious design of the inclined folded edge 1312, effectively controls costs and reduces exhaust resistance while ensuring the rainproof performance of the gas water heater.

[0047] Optionally, the smoke outlet structure 13 includes an interconnected but separate smoke exhaust connector 131 and a smoke exhaust component 132. The smoke exhaust connector 131 is connected to the front side wall of the smoke collection hood 12, and a second smoke outlet 1311 is provided at one end of the smoke exhaust connector 131 connected to the smoke collection hood 12. The lower wall of the second smoke outlet 1311 is provided with a folded edge 1312, which can be shaped like a sieve. Triangular plates 1314 are provided at both ends of the folded edge 1312, and the two triangular plates 1314 are respectively connected to the two side walls of the second smoke outlet 1311. This structure can guide rainwater splashed onto the folded edge 1312, resulting in better waterproof performance. The smoke exhaust component 132 is provided with a smoke exhaust port 1321 at one end away from the smoke exhaust connector 131. By setting the smoke outlet structure 13 as an interconnected smoke exhaust connector 131 and smoke exhaust component 132, the processing and installation are convenient, and the separate design can effectively reduce the processing cost. In this embodiment, both the smoke exhaust connector 131 and the smoke exhaust component 132 are integrally formed sheet metal structures.

[0048] Optionally, the smoke exhaust connector 131 and the smoke exhaust component 132 are respectively provided with a first protrusion 1313 and a second protrusion 1322 on opposite sides. The first protrusion 1313 has a first recessed groove, and the second protrusion 1322 has a second recessed groove. The first and second recessed grooves are interconnected. A second smoke outlet 1311 is provided at the bottom of the first recessed groove, and a smoke exhaust outlet 1321 is provided at the bottom of the second recessed groove. The flue gas after heat exchange enters the first recessed groove through the first smoke outlet 121 and the second smoke outlet 1311, and then exits through the second recessed groove and the smoke exhaust outlet 1321, making the flue gas discharge smooth and increasing the distance between the smoke exhaust outlet 1321 and the first smoke outlet 121, thereby further improving the waterproof performance.

[0049] Optionally, the first protrusion 1313 and the second protrusion 1322 are staggered vertically. This structure makes the structure more aesthetically pleasing and can reduce the design size of the smoke outlet structure 13, thereby reducing the overall structural size of the machine.

[0050] Optionally, the bottom of the second recessed groove is provided with one or more smoke exhaust ports 1321. When multiple smoke exhaust ports 1321 are provided, the multiple smoke exhaust ports 1321 are distributed in a multi-multi matrix manner. In this embodiment, there are six smoke exhaust ports 1321, and the six smoke exhaust ports 1321 are distributed in a two-multi three matrix manner. This structural design can ensure the smoke exhaust effect without reducing the structural strength of the smoke exhaust component 132.

[0051] like Figure 3As shown, optionally, when multiple smoke exhaust vents 1321 are provided, the upper wall of the smoke exhaust vent 1321 is lower than the top of the folded edge 1312 in the vertical direction, and the upper wall of the uppermost smoke exhaust vent 1321 is also lower than the top of the folded edge 1312, with a distance H between the upper wall of the smoke exhaust vent 1321 and the top of the folded edge 1312 being 5mm-10mm; when only one smoke exhaust vent 1321 is provided, the upper wall of this smoke exhaust vent 1321 is lower than the top of the folded edge 1312, with a distance H of 5mm-10mm. By setting the distance between the upper wall of the smoke exhaust vent 1321 and the top of the folded edge 1312 within this height range, the rainproof effect can be further improved.

[0052] To prolong the residence time of high-temperature flue gas in the condensing chamber 112, the condenser assembly 1 also includes a smoke baffle 14 disposed in the smoke collection hood 12. The smoke baffle 14 includes a horizontal connecting plate 141 and a vertical baffle 142 connected to each other. The vertical fixing plate 1412 at the end of the horizontal connecting plate 141 away from the vertical baffle 142 is connected to the front side wall of the smoke collection hood 12, and the vertical fixing plate 1412 is located at the lower part of the first smoke outlet 121. The horizontal connecting plate 141 is located above the outlet of the smoke inlet channel 111. The vertical baffle 142 extends into the condensing chamber 112 to divide the condensing chamber 112 into two chambers. A condensing heat exchange tube 15 is disposed in each of the two chambers. The high-temperature flue gas enters through the inlet of the smoke inlet channel 111 and is discharged through the outlet of the smoke inlet channel 111. Due to the obstruction of the horizontal connecting plate 141, the high-temperature flue gas is guided to one chamber in the condensing chamber 112, and then enters the smoke collection hood 12 from one chamber into the other chamber.

[0053] Optionally, the inner wall of the condensation chamber 112 is provided with a connecting guide groove 113, and the vertical baffle 142 is connected to the connecting guide groove 113, which can make the smoke baffle 14 more stable to install. In this embodiment, both opposite inner walls of the condensation chamber 112 are provided with connecting guide grooves 113, and the two ends of the vertical baffle 142 are respectively connected to the two connecting guide grooves 113.

[0054] To improve the smoothness of high-temperature flue gas flow, such as Figure 4 As shown, an inclined plate 1411 is provided between the horizontal connecting plate 141 and the vertical fixing plate 1412. The angle A between the inclined plate 1411 and the front side wall of the smoke hood 12 is an obtuse angle, that is, the angle between the inclined plate 1411 and the vertical fixing plate 1412 is A. Through this structural design, after the high-temperature flue gas is blocked by the inclined plate 1411, the inclined plate 1411 can prevent the high-temperature flue gas from flowing back and guide it, effectively reducing the exhaust resistance and improving the smoothness of the high-temperature flue gas flow.

[0055] Optionally, the included angle A between the inclined plate 1411 and the front sidewall of the smoke hood 12 is 110°-160°, which makes the smoke exhaust effect better.

[0056] In this embodiment, the folded edge 1312 is attached to the inclined plate 1411 so that the folded edge 1312 does not create resistance to the flue gas, thereby reducing the resistance to flue gas exhaust, which is beneficial to the exhaust of flue gas and also saves space.

[0057] like Figure 5 As shown in the figure, this utility model embodiment also provides a gas-fired water heater, including a burner 2, a heat exchange device 3, and the aforementioned condenser assembly 1. The high-temperature flue gas generated by the combustion of gas in the burner 2 is heat-exchanged by the heat exchange device 3, and then condensed by the condenser assembly 1 before being discharged. This gas-fired water heater, through the aforementioned condenser assembly 1, can effectively reduce exhaust resistance, improve the smoothness of flue gas flow, and also effectively prevent rainwater backflow, improving waterproof performance.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A smoke evacuation device, characterized in that, The application relates to a smoke exhaust device. The smoke exhaust device comprises a smoke hood (12), a front side wall of the smoke hood (12) is provided with a first smoke outlet (121); a smoke outlet structure (13) is arranged outside the smoke hood (12) and is connected with the front side wall of the smoke hood (12); one end of the smoke outlet structure (13) connected with the smoke hood (12) is provided with a second smoke outlet (1311) which is communicated with the first smoke outlet (121), and a lower wall of the second smoke outlet (1311) is provided with a folding edge (1312) which extends into the first smoke outlet (121) and is inclined upward; an exhaust outlet (1321) is arranged at an end of the smoke outlet structure (13) away from the smoke hood (12), and the exhaust outlet (1321) is communicated with the second smoke outlet (1311). When the exhaust outlet (1321) is arranged in one, in a vertical direction, an upper wall of the exhaust outlet (1321) is lower than a top end of the folding edge (1312); when the exhaust outlet (1321) is arranged in multiple, in the vertical direction, an upper wall of the uppermost exhaust outlet (1321) is lower than the top end of the folding edge (1312).

2. The smoke evacuation device of claim 1, wherein, A distance H between the upper wall of the exhaust outlet (1321) and the top end of the folding edge (1312) is 5-10 mm.

3. A smoke extraction device according to claim 2, characterised in that, The smoke outlet structure (13) comprises a smoke exhaust connecting piece (131) and a smoke exhaust piece (132) which are connected with each other and are separated, the smoke exhaust connecting piece (131) is connected with the front side wall of the smoke hood (12), and one end of the smoke exhaust connecting piece (131) connected with the smoke hood (12) is provided with the second smoke outlet (1311), and the smoke exhaust piece (132) is provided with the exhaust outlet (1321) at an end of the smoke exhaust piece (132) away from the smoke exhaust connecting piece (131).

4. The smoke evacuation device of claim 1, wherein, First and second convex parts (1313) and (1322) are arranged at two sides of the smoke exhaust connecting piece (131) and the smoke exhaust piece (132) respectively, first and second recessed grooves which are communicated with each other are arranged in the first and second convex parts (1313) and (1322) respectively, the second smoke outlet (1311) is arranged at a groove bottom of the first recessed groove, and the exhaust outlet (1321) is arranged at a groove bottom of the second recessed groove.

5. A smoke extraction device according to claim 4, characterised in that The first and second convex parts (1313) and (1322) are distributed in an up-down staggered mode in a vertical direction.

6. A smoke extraction device according to claim 5, characterised in that The smoke exhaust device comprises a condensing box (11) and the smoke exhaust device according to any one of claims 1-6, the condensing box (11) is provided with a smoke inlet channel (111) and a condensing cavity (112), and the smoke hood (12) is arranged on the condensing box (11) and covers the condensing cavity (112) and an outlet of the smoke inlet channel (111).

7. A condenser assembly characterized by, ​ 8. The condenser assembly of claim 7, wherein, The smoke blocking member (14) is arranged in the smoke hood (12), and comprises a horizontal connecting plate (141) and a vertical blocking plate (142) connected with each other. A vertical fixed plate (1412) on one end of the horizontal connecting plate (141) away from the vertical blocking plate (142) is connected with the front side wall of the smoke hood (12), and the vertical fixed plate (1412) is located at the lower part of the first smoke outlet (121). The horizontal connecting plate (141) is located above the outlet of the smoke inlet channel (111), and the vertical blocking plate (142) extends into the condensation cavity (112) to divide the condensation cavity (112) into two chambers. Condensation heat exchange pipes (15) are arranged in the two chambers.

9. The condenser assembly of claim 8, wherein, An insertion guide groove (113) is arranged on the inner side wall of the condensation cavity (112), and the vertical blocking plate (142) is inserted into the insertion guide groove (113).

10. The condenser assembly of claim 8, wherein, An inclined plate (1411) is arranged between the horizontal connecting plate (141) and the vertical fixed plate (1412), and the included angle A between the inclined plate (1411) and the front side wall of the smoke hood (12) is an obtuse angle. The inclined plate (1411) is in contact with the folded edge (1312).

11. Gas water heating apparatus, characterised in that, The condenser assembly (1) according to any one of claims 7-10, a burner (2) and a heat exchange device (3), wherein the flue gas generated by burning gas in the burner (2) is exchanged by the heat exchange device (3), and then condensed and discharged by the condenser assembly (1).

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