An exhaust hood for a gas water heater and a gas water heater

Abstract

The present invention discloses a smoke exhaust hood and a gas water heater for a gas water heater. The smoke exhaust hood includes a hood body, the hood body has a cavity with an open lower end, a water baffle and a drainage plate extending downward are provided on the top wall of the cavity, a space for placing a smoke exhaust pipe is formed between the water baffle and the drainage plate, and a smoke exhaust port is provided on the side surface of the hood body outside the water baffle, which can avoid the accumulation of flue gas in the smoke exhaust hood.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and particularly to a smoke exhaust hood and a gas water heater for a gas water heater. Background Art

[0002] In related technologies, for the smoke exhaust hood of an outdoor gas water heater used in the market, since most of them adopt a semi-circular wrapping structure, that is, a semi-circular baffle is arranged in the smoke exhaust hood to wrap the periphery of the smoke exhaust pipe extending into the smoke exhaust hood. Therefore, during use, there is a phenomenon that flue gas accumulates in the smoke exhaust hood, resulting in a large smoke exhaust resistance and a large temperature rise in the smoke exhaust hood, and the rain shielding effect is not good. Summary of the Invention

[0003] The present invention aims to solve at least one of the problems existing in the related technologies to some extent. To this end, an object of the present invention is to provide a smoke exhaust hood for a gas water heater, which can avoid the accumulation of flue gas in the smoke exhaust hood.

[0004] The above object is achieved by the following technical solutions:

[0005] A smoke exhaust hood for a gas water heater includes a hood body. The hood body has a cavity with an open lower end. A water baffle and a drainage plate extending downward are arranged on the top wall of the cavity. A space for placing a smoke exhaust pipe is formed between the water baffle and the drainage plate. A smoke exhaust port is arranged on the side surface of the hood body outside the water baffle.

[0006] In some embodiments, the water baffle is arc-shaped, and the center of the arc of the water baffle is located on the side of the water baffle away from the smoke exhaust pipe.

[0007] In some embodiments, the drainage plate is arc-shaped, and the center of the arc of the drainage plate and the smoke exhaust pipe are on the same side of the drainage plate.

[0008] In some embodiments, the center of the arc of the water baffle and the center of the arc of the drainage plate are the same.

[0009] In some embodiments, the length of the drainage plate is greater than the length of the water baffle.

[0010] In some embodiments, the center of the arc of the water baffle, the center of the smoke exhaust pipe, and the center of the arc of the drainage plate are on the same straight line.

[0011] In some embodiments, the smoke exhaust hood is integrally formed.

[0012] Another object of the present invention is to provide a gas water heater, which can avoid the accumulation of flue gas in the smoke exhaust hood and has a better rain shielding effect.

[0013] The above object is achieved by the following technical solutions:

[0014] A gas water heater has a smoke exhaust hood as described above.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. For the smoke exhaust hood and the gas water heater of the present invention, it can avoid the accumulation of flue gas in the smoke exhaust hood and has a better rain shielding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the smoke exhaust hood in an embodiment of the present invention;

[0018] Figure 2 is a structural view of the smoke exhaust hood in an embodiment of the present invention;

[0019] Figure 3 is a perspective view of the gas water heater in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following embodiments are used to illustrate the present invention, but the present invention is not limited by these embodiments. Modifying the specific embodiments of the present invention or equivalently replacing some technical features without departing from the spirit of the present invention shall be covered within the scope of the technical solutions claimed by the present invention.

[0021] Embodiment 1: As shown in Figure 1 、 Figure 2 and Figure 3 , this embodiment provides a smoke exhaust hood for a gas water heater, including a hood body 1. The hood body 1 has a cavity 100 with an open lower end. On the top wall of the cavity 100, a water baffle 101 and a drainage plate 102 extending downward are provided. A space 103 for placing a smoke exhaust pipe 2 is formed between the water baffle 101 and the drainage plate 102. A smoke exhaust port 104 is provided on the side surface of the hood body 1 outside the water baffle 101.

[0022] The smoke exhaust hood of this embodiment can avoid the accumulation of flue gas in the smoke exhaust hood and has a better rain shielding effect.

[0023] During use, the hood body 1 is installed on the gas water heater. The smoke exhaust pipe 2 of the gas water heater extends into the hood body 1 and is located in the space 103 between the water baffle 101 and the drainage plate 102. Due to the function of the drainage plate 102, the flue gas discharged from the smoke exhaust pipe 2 can be guided to the smoke exhaust port 104 and discharged outwards from the smoke exhaust port 104, avoiding the accumulation of flue gas in the smoke exhaust hood, which may increase the smoke exhaust resistance of the smoke exhaust hood and the temperature rise inside the smoke exhaust hood. At the same time, due to the function of the water baffle 101, external rainwater can be prevented from splashing into the interior of the hood body 1, which is beneficial to improving the rain shielding effect of the smoke exhaust hood.

[0024] Preferably, Figure 1 and Figure 2 as shown, where Figure 2 the direction indicated by the solid arrow is the flue gas flow direction, and the direction indicated by the dashed arrow is the rainwater movement direction. The water baffle 101 is arc-shaped, and the center of the arc of the water baffle 101 is located on the side of the water baffle 101 away from the exhaust pipe 2. Its structure is simple, the design is reasonable and ingenious, which is beneficial to improving the rainproof effect of the smoke exhaust hood. When the rainwater hits the water baffle 101, it will splash outwards, reducing the rainwater entering the inside of the hood body 1. At the same time, it can also improve the smoke guiding effect to a certain extent. The flue gas discharged from the exhaust pipe 2 can be guided by the water baffle 101 to the exhaust port 104 and discharged outwards from the exhaust port 104.

[0025] More preferably, the drainage plate 102 is arc-shaped, and the center of the arc of the drainage plate 102 and the exhaust pipe 2 are on the same side of the drainage plate. Its structure is simple, the design is reasonable and ingenious, which is beneficial to further improving the drainage and smoke guiding effects of the drainage plate 102. Due to the action of the drainage plate 102, the flue gas discharged from the exhaust pipe 2 can be guided to the exhaust port 104 and discharged outwards from the exhaust port 104, avoiding the accumulation of flue gas in the smoke exhaust hood, resulting in an increase in the smoke exhaust resistance of the smoke exhaust hood and the temperature rise inside the smoke exhaust hood.

[0026] Preferably, the center of the arc of the water baffle 101 and the center of the arc of the drainage plate 102 are the same. Through the combined action of the water baffle 101 and the drainage plate 102, the drainage and smoke guiding effects of the smoke exhaust hood can be further improved. The flue gas can be discharged outwards along the water baffle 101 and the drainage plate 102, avoiding the accumulation of flue gas in the smoke exhaust hood, resulting in an increase in the smoke exhaust resistance of the smoke exhaust hood and the temperature rise inside the smoke exhaust hood.

[0027] In this embodiment, the length of the drainage plate 102 is greater than the length of the water baffle 101. Its structure is simple, the design is reasonable and ingenious. Through the combined action of the water baffle 101 and the drainage plate 102, the drainage and smoke guiding effects of the smoke exhaust hood can be further improved. The flue gas can be discharged outwards along the water baffle 101 and the drainage plate 102. At the same time, the flue gas can be smoothly discharged outwards through the space between the water baffle 101 and the drainage plate 102 and the exhaust port 104, avoiding the occurrence of flue gas backflow.

[0028] Preferably, the center of the arc of the water baffle 101, the center of the exhaust pipe 2, and the center of the arc of the drainage plate 102 are located on the same straight line. Its structure is simple, the design is reasonable and ingenious. Through the combined action of the water baffle 101 and the drainage plate 102, the drainage and smoke guiding effects of the smoke exhaust hood can be further improved. The flue gas can be discharged outwards along the water baffle 101 and the drainage plate 102, avoiding the accumulation of flue gas in the smoke exhaust hood, resulting in an increase in the smoke exhaust resistance of the smoke exhaust hood and the temperature rise inside the smoke exhaust hood.

[0029] In this embodiment, the smoke exhaust hood is integrally formed. The integrally formed method can improve the performance, reliability, and service life of the product.

[0030] Embodiment 2: Refer to Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a gas water heater, which has a smoke exhaust hood as described in Embodiment 1, and is particularly applied to outdoor gas water heaters.

[0031] The gas water heater of this embodiment, by adopting the smoke exhaust hood as described in Embodiment 1, has the characteristics of avoiding the accumulation of flue gas in the smoke exhaust hood and having a better rain shielding effect.

[0032] The other components and operations of the gas water heater according to this embodiment are known to those of ordinary skill in the art, and will not be elaborated here to save space.

[0033] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A smoke exhaust hood for a gas water heater, comprising a hood body (1), and the hood body (1) has a cavity (100) with an open lower end. Characterized in that, a water baffle (101) and a drainage plate (102) extending downward are arranged on the top wall of the cavity (100), a space (103) for placing a smoke exhaust pipe (2) is formed between the water baffle (101) and the drainage plate (102), a smoke exhaust port (104) is arranged on the side surface of the hood body (1) outside the water baffle (101), the water baffle (101) is arc-shaped, the center of the arc of the water baffle (101) is located on the side of the water baffle (101) away from the smoke exhaust pipe (2), the drainage plate (102) is arc-shaped, the center of the arc of the drainage plate (102) and the smoke exhaust pipe (2) are located on the same side of the drainage plate, the length of the drainage plate (102) is greater than the length of the water baffle (101), and the center of the arc of the water baffle (101), the center of the smoke exhaust pipe (2) and the center of the arc of the drainage plate (102) are located on the same straight line.

2. The smoke exhaust hood for a gas water heater according to claim 1, Characterized in that, the center of the arc of the water baffle (101) and the center of the arc of the drainage plate (102) are the same.

3. The smoke exhaust hood for a gas water heater according to claim 1 or 2, Characterized in that, the smoke exhaust hood is integrally formed.

4. A gas water heater, Characterized in that, it has the smoke exhaust hood according to any one of claims 1 to 3.

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