Smoke exhaust outlet waterproof structure
By installing first and second guide plates inside the exhaust outlet of the diesel generator set, the problem of both waterproofing and exhaust during rain is solved, achieving the effect of rainwater discharge and smooth exhaust of flue gas.
Patent Information
- Application Number
- CN202422958259.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing diesel generator set exhaust outlets cannot simultaneously achieve effective waterproofing and smooth smoke exhaust during rain. In particular, the curved horizontal exhaust design cannot directly exhaust smoke upwards, and the traditional cover design cannot simultaneously protect against rain and exhaust smoke when opening and closing.
The system employs a first guide plate and a second guide plate installed inside the casing. The first and second guide plates face each other and have different cross-sectional dimensions. The second guide plate is connected to a drain pipe. The casing is a circular tube or a frustum structure, and the guide plates are conical or hemispherical and are fixed by a support structure. Rainwater flows into the second guide plate through the first guide plate and is discharged through the drain pipe, while flue gas is discharged upward through the guide plate.
It effectively prevents rainwater from entering the generator during rain, maintains smooth smoke exhaust, and has an attractive appearance, achieving a balance between waterproofing and smoke exhaust functions at the exhaust outlet.
Smart Images

Figure CN223511001U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel generator set exhaust outlet technology, specifically to a waterproof structure for exhaust outlet. Background Technology
[0002] The installation of diesel generator sets requires the exhaust gas generated during operation to be discharged into the air. Therefore, it is particularly important to design a rainproof exhaust outlet. There are many ways to achieve rainproofing. For example, the most common method is to install a cover. However, this requires opening and closing, and it cannot prevent rain when open and cannot exhaust smoke when closed. Some designs are curved, such as the curved horizontal exhaust design in Chinese patent document CN210264874U. This design cannot exhaust smoke directly upward. Therefore, it is necessary to design an exhaust method with the exhaust direction directly upward. Utility Model Content
[0003] In view of the above-mentioned problems in the existing technology, the aim is to provide a waterproof structure for smoke exhaust outlet.
[0004] The specific technical solution is as follows:
[0005] A waterproof structure for a smoke exhaust outlet mainly includes: a shell, a first guide plate, and a second guide plate;
[0006] The first guide plate and the second guide plate are disposed inside the housing, and the first guide plate and the second guide plate are arranged facing each other. The cross-sectional dimension of the side of the first guide plate facing the second guide plate is smaller than the cross-sectional dimension of the side of the second guide plate facing the first guide plate. The second guide plate is provided with a drain pipe extending out of the housing.
[0007] The above-mentioned waterproof structure for a smoke exhaust outlet also has the following features: the shell includes a first section, a second section, and a third section; the first section and the third section are circular tube structures; one end of the second section is connected to the first section; the other end of the second section is connected to the third section; the diameter in the middle of the second section is larger than the diameter at both ends; and the first guide plate and the second guide plate are disposed inside the second section.
[0008] The aforementioned waterproof structure for a smoke exhaust outlet also features that both the first guide plate and the second guide plate are conical plates.
[0009] The aforementioned waterproof structure for a smoke exhaust outlet also features that both the first guide plate and the second guide plate are hemispherical plates.
[0010] The aforementioned waterproof structure for a smoke exhaust outlet also features that the shell is a spherical structure, or the shell comprises two interlocking frustum-shaped structures.
[0011] The aforementioned waterproof structure for a smoke exhaust outlet also features that the first guide plate and the second guide plate are each mounted inside the housing via several supporting structures.
[0012] The aforementioned waterproof structure for a smoke exhaust outlet also features that the supporting structure is a crossbeam, the two ends of which are connected to the two inner walls of the shell, and the crossbeam is connected to the outer peripheral wall of the first guide plate or the second guide plate.
[0013] The aforementioned waterproof structure for a smoke exhaust outlet also features the following characteristic: the supporting structure is a strut, one end of which is connected to the first or second guide plate, and the other end of which is connected to the inner wall of the housing.
[0014] The positive effects of the above technical solution are:
[0015] This utility model provides a waterproof structure for a smoke exhaust outlet. When it rains, rainwater enters from the top of the casing and hits the first guide plate. The rainwater then flows along the first guide plate to the second guide plate, which is a water receiving plate. This design discharges the rainwater through the drain pipe to the outside of the casing, preventing rainwater from entering the engine. The structure is aesthetically pleasing, provides smooth smoke exhaust, and effectively waterproofs and drains water. Attached Figure Description
[0016] Figure 1 A schematic diagram of a waterproof structure for a smoke exhaust outlet provided by this utility model;
[0017] Figure 2 This is another structural diagram of a waterproof structure for a smoke exhaust outlet provided by this utility model.
[0018] In the attached diagram: 1. First guide plate; 2. Second guide plate; 3. Shell; 31. First section; 32. Second section; 33. Third section; 4. Drain pipe; 5. Crossbeam. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0020] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0022] Please see Figure 1 and Figure 2 In this diagram, upward arrow 'a' represents smoke, and downward arrow 'b' represents rainwater. This utility model discloses a waterproof structure for a smoke exhaust outlet, comprising: a shell 3, a first guide plate 1, and a second guide plate 2;
[0023] The first guide plate 1 and the second guide plate 2 are disposed inside the housing 3. The first guide plate 1 and the second guide plate 2 are disposed opposite each other. The cross-sectional dimension of the side of the first guide plate facing the second guide plate 2 is smaller than the cross-sectional dimension of the side of the second guide plate 2 facing the first guide plate 1. The second guide plate 2 is provided with a drain pipe 4 extending out of the housing 3.
[0024] Optionally, in this embodiment, the housing 3 includes a first section 31, a second section 32, and a third section 33. The first section 31 and the third section 33 are circular tube structures. One end of the second section 32 is connected to the first section 31, and the other end of the second section 32 is connected to the third section 33. The diameter in the middle of the second section 32 is larger than the diameter at both ends. The first guide plate 1 and the second guide plate 2 are disposed within the second section. The third section 33 is adapted to the diameter of the exhaust tailpipe of the diesel generator, so that the waterproof exhaust outlet structure can be installed on the exhaust tailpipe of the diesel generator.
[0025] Optionally, the housing 3 is a spherical structure, or the housing 3 includes two interlocking conical structures. For example, in one embodiment, the housing 3 includes two interlocking frustum-shaped structures with a larger diameter in the middle and smaller diameters at both ends.
[0026] Optionally, in this embodiment, both the first guide plate 1 and the second guide plate 2 are conical plates. Optionally, in one specific embodiment, the cone angle of the first guide plate 1 is 90°, and the cone angle of the second guide plate 2 is 120°. The 90° angle provides an outer guiding surface, allowing rainwater to flow downwards through the drain pipe 4, while the 120° angle provides an inner guiding surface, allowing exhaust gas to flow upwards through the hood, and then the exhaust gas is discharged from the outside. The cone angle design of the first guide plate 1 and the second guide plate 2 is merely illustrative and not intended to limit the present invention. Optionally, in other embodiments, both the first guide plate 1 and the second guide plate 2 are hemispherical plates. It can be said that the diameters of the first guide plate 1 and the second guide plate 2 gradually change to form guiding surfaces for rainwater and exhaust gas.
[0027] Regardless of whether the first guide plate 1 and the second guide plate 2 are conical or hemispherical, they are positioned directly opposite each other. The cross-sectional dimension of the side of the first guide plate 1 facing the second guide plate 2 is smaller than the cross-sectional dimension of the side of the second guide plate 2 facing the first guide plate 1. This means that the centers of the first guide plate 1 and the second guide plate 2 are directly opposite each other; the diameter of the first guide plate 1 is smaller than the diameter of the second guide plate 2; and the cross-section of the side of the second guide plate 2 facing the second guide plate 2 covers the cross-section of the side of the first guide plate 1 facing the first guide plate 1, allowing rainwater flowing down the outside of the first guide plate 1 to smoothly enter the second guide plate 2.
[0028] Optionally, the first guide plate 1 and the second guide plate 2 are each mounted inside the housing 3 by a number of support structures.
[0029] like Figure 2 As shown, the supporting structure is a crossbeam 5, with both ends of the crossbeam 5 connected to the two inner walls of the housing 3, and the crossbeam 5 connected to the outer peripheral wall of the first guide plate 1 or the second guide plate 2. The middle portion of the crossbeam 5 is connected to the outer peripheral wall of the first guide plate 1 or the second guide plate 2. Optionally, in other embodiments, the supporting structure is a strut, with one end of the strut connected to the first guide plate 1 or the second guide plate 2, and the other end connected to the inner wall of the housing 3.
[0030] The waterproof exhaust outlet structure provided by this utility model allows exhaust gas to enter the housing 3 from bottom to top through the opening 33 of the third section of the housing 3. The exhaust gas is then guided to the surrounding area by the second guide plate 2, and discharged upwards through the space between the outer side of the second guide plate 2 and the inner wall of the housing 3. When it rains, rainwater enters the housing 3 from the upper opening of the first section 31. The rainwater hits the outer surface of the first guide plate 1 and flows down to the second guide plate 2. The second guide plate 2 is a water-receiving plate that drains the rainwater to the outside through the drain pipe 4 below it, preventing rainwater from entering the diesel generator.
[0031] This utility model provides a waterproof structure for a smoke exhaust outlet. When it rains, rainwater 1 enters from the top of the housing 3 and hits the first guide plate 1. The rainwater then flows along the first guide plate to the second guide plate 2, which is a water receiving plate. The second guide plate 2 discharges the rainwater from the drain pipe 4 to the outside of the housing, preventing rainwater from entering the diesel generator. It has an attractive appearance, smooth smoke exhaust, and effective waterproofing and drainage.
[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0033] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A waterproof structure for a smoke exhaust outlet, characterized in that, include: The casing, the first guide plate, and the second guide plate; The first guide plate and the second guide plate are disposed inside the housing, and the first guide plate and the second guide plate are arranged facing each other. The cross-sectional dimension of the side of the first guide plate facing the second guide plate is smaller than the cross-sectional dimension of the side of the second guide plate facing the first guide plate. The second guide plate is provided with a drain pipe extending out of the housing. The housing includes a first section, a second section, and a third section. The first section and the third section are circular tube structures. One end of the second section is connected to the first section, and the other end of the second section is connected to the third section. The diameter in the middle of the second section is larger than the diameter at both ends. The first guide plate and the second guide plate are disposed inside the second section.
2. The waterproof structure for the smoke exhaust outlet according to claim 1, characterized in that, Both the first guide plate and the second guide plate are conical plates.
3. The waterproof structure for the smoke exhaust outlet according to claim 1, characterized in that, Both the first guide plate and the second guide plate are hemispherical plates.
4. The waterproof structure for the smoke exhaust outlet according to claim 3, characterized in that, The shell is a spherical structure, or the shell comprises two interlocking frustum-shaped structures.
5. The waterproof structure for the smoke exhaust outlet according to any one of claims 1 to 4, characterized in that, The first guide plate and the second guide plate are each mounted inside the housing by a number of support structures.
6. The waterproof structure for the smoke exhaust outlet according to claim 5, characterized in that, The supporting structure is a crossbeam, the two ends of which are connected to the two inner walls of the shell, and the crossbeam is connected to the outer peripheral wall of the first guide plate or the second guide plate.
7. The waterproof structure for the smoke exhaust outlet according to claim 5, characterized in that, The supporting structure is a strut, one end of which is connected to the first or second guide plate, and the other end of which is connected to the inner wall of the housing.
Citation Information
Patent Citations
Waterproof and rainproof smoke exhaust device
CN210264874U