Explosion-proof standby chimney

Abstract

The utility model relates to the technical field of chimneys, and discloses an explosion-proof standby chimney which comprises a chimney body, a protective cylinder is arranged at the bottom of the chimney body, the protective cylinder is installed at a smoke outlet of combustion equipment, the protective cylinder comprises an outer sleeve and an inner sleeve which are arranged at an interval, and an upper cylinder opening of the outer sleeve is communicated with the chimney body in a sealed mode. A sliding rod is arranged on the outer sleeve in a penetrating manner, and the depth of the sliding rod extending into the outer sleeve is adjustable; an anti-explosion cover plate is arranged on an upper sleeve opening of the inner sleeve, a hinge hinged to the inner sleeve is arranged on the side edge of the anti-explosion cover plate, and a linkage rod is arranged between the sliding rod and the anti-explosion cover plate. The explosion-proof standby chimney not only can reserve the original chimney function, but also can have the pressure relief and explosion-proof capacity, when the chimney function is not used, the explosion-proof function can still be achieved, the combustion explosion risk is reduced, the pressure relief opening can be transferred outdoors, and the indoor personal safety is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of chimney technology, and in particular to an explosion-proof backup chimney. Background Technology

[0002] When combustion equipment such as boilers and fireplaces malfunctions or is operated improperly, a large amount of combustible gas may accumulate inside the combustion chamber. Ignition under such circumstances may result in an explosion. The exhaust port of the chimney is small in size to prevent a large amount of backflow of outdoor wind, which may not be able to release the high pressure generated by the explosion in time, thus causing the combustion chamber to break or even disintegrate. Therefore, it is necessary to install explosion-proof structures on combustion equipment.

[0003] Current explosion-proof structures typically involve creating a pressure relief vent on the combustion equipment and installing a pre-pressurized cover to seal the combustion chamber. However, to ensure reliable pressure relief, the pre-pressurization on the cover cannot be too high, resulting in an unreliable seal. During operation, exhaust gases from fuel combustion can leak into the room, threatening the safety of users. Furthermore, an explosion could cause flames to erupt from the vent, potentially burning users or igniting nearby combustibles, leading to a fire. Utility Model Content

[0004] The purpose of this invention is to provide an explosion-proof backup chimney to solve the problems mentioned in the background art, so that the chimney has pressure relief and explosion-proof functions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An explosion-proof backup chimney includes a chimney body, a protective sleeve at the bottom of the chimney body, the protective sleeve being installed at the smoke outlet of the combustion equipment, and the protective sleeve comprising an outer sleeve and an inner sleeve spaced apart, wherein:

[0007] The upper opening of the outer casing is sealed and connected to the chimney body. A sliding rod is installed on the outer casing, and the depth of the sliding rod extending into the outer casing is adjustable.

[0008] The upper opening of the inner sleeve is equipped with an explosion-proof cover plate, and a hinge that is hinged to the inner sleeve is provided on the side edge of the explosion-proof cover plate. A linkage rod is provided between the sliding rod and the explosion-proof cover plate.

[0009] As an alternative, the upper end face of the inner sleeve is arranged at an angle to match the explosion-proof cover, the hinge is installed at the lowest point of the explosion-proof cover, and a hinge seat that is rotatably connected to the linkage rod is provided on the upper part of the outer side of the explosion-proof cover.

[0010] As an alternative, the angle between the upper end face of the inner sleeve and the horizontal plane is 30° to 60°.

[0011] As an alternative, a guide sleeve is provided on the outer sleeve, and the sliding rod and the guide sleeve are slidably fitted and sealed, with the end of the sliding rod rotatably connected to the linkage rod.

[0012] As an optional solution, a maintenance window is provided on the outer sleeve, and an opening and closing door is provided on the maintenance window. A quick-lock mechanism is provided between the opening and closing door and the outer sleeve.

[0013] As an optional solution, the lower opening of the inner sleeve is provided with a fixed flange, which is fixed to the lower opening edge of the outer sleeve.

[0014] As an alternative, fixed flanges are provided at both ends of the outer sleeve, and reinforcing plates are provided between the fixed flanges and the outer surface of the outer sleeve, with multiple reinforcing plates evenly distributed around the circumference of the outer sleeve.

[0015] The beneficial effects of this utility model are:

[0016] This explosion-proof backup chimney has a protective casing installed on the chimney body, which allows the chimney to retain its original chimney function while also having pressure relief and explosion-proof capabilities. When the chimney function is not in use, the explosion-proof function can still be activated, reducing the risk of combustion and explosion. In addition, the pressure relief port can be moved to the outside, ensuring the safety of people indoors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the explosion-proof backup chimney provided in this embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the protective cylinder according to an embodiment of the present utility model;

[0019] Figure 3 This is a top view of the protective cylinder according to an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional view of the protective cylinder involved in an embodiment of this utility model.

[0021] In the attached image:

[0022] 100. Chimney body;

[0023] 200. Protective sleeve; 201. Outer sleeve; 202. Inner sleeve; 203. Sliding rod; 204. Explosion-proof cover; 205. Hinge; 206. Linkage rod; 207. Hinge seat; 208. Guide sleeve; 209. Opening and closing door; 210. Quick lock; 211. Fixed flange; 212. Fixed flange; 213. Reinforcing plate. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0025] 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, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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 based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly 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.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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.

[0028] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0029] Please see Figures 1 to 4 As shown, this embodiment provides an explosion-proof backup chimney, including a chimney body 100. A protective sleeve 200 is provided at the bottom of the chimney body 100. The protective sleeve 200 is installed at the smoke outlet of the combustion equipment. The protective sleeve 200 includes an outer sleeve 201 and an inner sleeve 202 arranged at intervals, wherein:

[0030] The upper opening of the outer sleeve 201 is sealed and connected to the chimney body 100. A sliding rod 203 is provided on the outer sleeve 201, and the depth of the sliding rod 203 extending into the outer sleeve 201 is adjustable.

[0031] An explosion-proof cover plate 204 is provided at the upper opening of the inner sleeve 202. A hinge 205 is provided on the side edge of the explosion-proof cover plate 204 to be hinged to the inner sleeve 202. A linkage rod 206 is provided between the sliding rod 203 and the explosion-proof cover plate 204.

[0032] Therefore, by adding a protective cylinder 200 to the chimney body 100, the explosion-proof backup chimney can retain the original chimney function and also have pressure relief and explosion-proof capabilities, reducing the risk of combustion and explosion. Furthermore, the pressure relief port can be moved to the outside, ensuring the safety of people indoors. In addition, the explosion-proof function can still be effective when the chimney function is not in use (i.e., in backup mode).

[0033] Optionally, the upper end face of the inner sleeve 202 is inclined to cooperate with the explosion-proof cover 204, the hinge 205 is installed at the lowest point of the explosion-proof cover 204, and the upper part of the outer side of the explosion-proof cover 204 is provided with a hinge seat 207 that is rotatably connected to the linkage rod 206, so that the explosion-proof cover 204 can be easily opened automatically when the set pressure is reached, and kept sealed when the pressure is less than the set pressure.

[0034] Furthermore, the angle between the upper end face of the inner sleeve 202 and the horizontal plane is 30° to 60°. Within this angle range, it is easier to control the explosion-proof cover 204 to open or close sensitively.

[0035] Optionally, a guide sleeve 208 is provided on the outer sleeve 201, and the sliding rod 203 slides and seals with the guide sleeve 208. The end of the sliding rod 203 is rotatably connected to the linkage rod 206. Furthermore, the friction of the sliding fit can be adjusted to regulate the opening pressure of the explosion-proof cover 204. It should be noted that the presence of the sliding rod 203 and the linkage rod 206 ensures accurate opening and closing of the explosion-proof cover 204, and the friction allows the explosion-proof cover 204 to seal the inner sleeve 202 before the set pressure is reached.

[0036] Optionally, a maintenance window is provided on the outer sleeve 201, and an opening and closing door 209 is provided on the maintenance window. A quick-locking component 210 is provided between the opening and closing door 209 and the outer sleeve 201 to facilitate the maintenance of the structure of the explosion-proof cover 204 and the cleaning between the outer sleeve 201 and the inner sleeve 202.

[0037] Optionally, the lower opening of the inner sleeve 202 is provided with a fixed flange 211, which is fixed to the lower opening edge of the outer sleeve 201 to ensure structural stability between the inner sleeve 202 and the outer sleeve 201.

[0038] Optionally, a fixing flange 212 is provided at both ends of the outer sleeve 201, and a reinforcing plate 213 is provided between the fixing flange 212 and the outer surface of the outer sleeve 201. Multiple reinforcing plates 213 are evenly distributed around the circumference of the outer sleeve 201 to ensure the structural strength of the outer sleeve 201.

[0039] 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 various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments 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. An explosion-proof backup chimney, characterized in that, The device includes a chimney body (100), the bottom of which is provided with a protective sleeve (200). The protective sleeve (200) is installed at the flue gas outlet of the combustion equipment. The protective sleeve (200) includes an outer sleeve (201) and an inner sleeve (202) spaced apart, wherein: The upper opening of the outer sleeve (201) is sealed and connected to the chimney body (100). A sliding rod (203) is provided on the outer sleeve (201), and the depth of the sliding rod (203) extending into the outer sleeve (201) is adjustable. The upper opening of the inner sleeve (202) is provided with an explosion-proof cover plate (204), and a hinge (205) is provided on the side edge of the explosion-proof cover plate (204) to be hinged to the inner sleeve (202). A linkage rod (206) is provided between the sliding rod (203) and the explosion-proof cover plate (204).

2. The explosion-proof backup chimney according to claim 1, characterized in that, The upper end face of the inner sleeve (202) is inclined to cooperate with the explosion-proof cover (204), the hinge (205) is installed at the lowest point of the explosion-proof cover (204), and the upper part of the outer side of the explosion-proof cover (204) is provided with a hinge seat (207) that is rotatably connected to the linkage rod (206).

3. The explosion-proof backup chimney according to claim 2, characterized in that, The angle between the upper end face of the inner sleeve (202) and the horizontal plane is 30° to 60°.

4. The explosion-proof backup chimney according to claim 1, characterized in that, The outer sleeve (201) is provided with a guide sleeve (208), the sliding rod (203) and the guide sleeve (208) are slidably engaged and sealed, and the end of the sliding rod (203) is rotatably connected to the linkage rod (206).

5. The explosion-proof backup chimney according to claim 1, characterized in that, The outer sleeve (201) is provided with a maintenance window, and the maintenance window is provided with a switch door (209). A quick lock (210) is provided between the switch door (209) and the outer sleeve (201).

6. The explosion-proof backup chimney according to claim 1, characterized in that, The lower opening of the inner sleeve (202) is provided with a fixed flange (211), which is fixed to the lower opening edge of the outer sleeve (201).

7. The explosion-proof backup chimney according to claim 1, characterized in that, Fixed flanges (212) are provided at both ends of the outer sleeve (201). A reinforcing plate (213) is provided between the fixed flange (212) and the outer surface of the outer sleeve (201). Multiple reinforcing plates (213) are evenly distributed around the circumference of the outer sleeve (201).

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