Flue pipe convenient to clean

Abstract

The utility model discloses a flue pipe convenient to clean, and relates to the technical field of pipelines. Comprising a pipe body, the pipe body is composed of an outer pipe and an inner pipe, the top end and the bottom end of the outer pipe are rotationally connected with an upper sealing plate and a lower sealing plate respectively, the top end and the bottom end of the inner pipe are fixedly connected with the inner wall of the upper sealing plate and the inner wall of the lower sealing plate respectively, the outer wall of the inner pipe is sleeved with a sleeve, and a first through hole is formed in the inner pipe. During cleaning, the valve seat is rotated to drive the inner pipe to rotate, the first through hole of the inner pipe is aligned with the second through hole of the sleeve, the water inlet valve is opened at the moment, the output end of external water pumping equipment is connected with a port of the water inlet valve, the water pumping equipment is started to pump water into the flowing gap, and the water is transiently gathered in the flowing gap to form high pressure; the inner wall of the inner pipe can be lapped on the inner wall of the inner pipe through the through holes, the inner wall of the inner pipe can be fully cleaned conveniently, the cleaning mode is simple, manual intervention is not needed, the labor intensity is small, the cleaning efficiency is high, and harm to human health caused by pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a flue pipe which is convenient to clean. Background Technique

[0002] A flue pipe is a pipe for discharging flue gas outdoors, and common materials include stainless steel, galvanized iron sheet, PVC, PP, etc. In industries such as catering and industry, as an important part of the smoke exhaust system, the cleaning of flue pipes has always been a difficult problem. Since the fly ash solid particles in the flue gas are easy to adhere to the inner wall of the flue pipe, if the inner wall of the flue pipe is not cleaned in time, it may bring non-negligible safety hazards.

[0003] When the existing flue pipes are in use, there are also problems such as great cleaning difficulty, high labor intensity and low cleaning efficiency, which are not conducive to use, and are also prone to pollution during cleaning, posing a hazard to human health. Therefore, a flue pipe which is convenient to clean is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a flue pipe which is convenient to clean, and solves the technical problems put forward in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A flue pipe which is convenient to clean, comprising a pipe body, the pipe body is composed of an outer pipe and an inner pipe, the top and bottom of the outer pipe are respectively rotatably connected with an upper sealing plate and a lower sealing plate, the top and bottom of the inner pipe are respectively fixedly connected with the inner walls of the upper sealing plate and the lower sealing plate, a sleeve is sleeved on the outer wall of the inner pipe, a through hole one is opened on the inner pipe, a through hole two is opened on the sleeve, a flow gap is formed between the sleeve and the outer pipe, a water inlet valve is arranged on the lower sealing plate, and a drain valve is arranged on the inner wall of the outer pipe.

[0006] Preferably, a groove is opened on the inner wall of the outer pipe, a positioning ring is fixedly connected to the outer wall of the sleeve, a flow channel is opened on the inner wall of the positioning ring, the outer wall of the positioning ring is rotatably connected with the inner wall of the outer pipe, a convex die is arranged on the outer wall of the positioning ring, and the outer wall of the convex die is clamped with the inner wall of the groove.

[0007] Preferably, sealing components are fixedly connected to the outer walls of the lower sealing plate and the upper sealing plate.

[0008] Preferably, the sealing component includes a valve seat, a valve cover is fixedly connected to the inner wall of the valve seat, a valve rod is rotatably connected to the inner wall of the valve cover, and a valve flap is fixedly connected to the outer wall of the valve rod.

[0009] Preferably, a handle is rotatably connected to the valve seat, and the front end of the valve rod penetrates through the valve cover and is fixedly connected to the inner wall of the handle.

[0010] Preferably, the outer wall of the valve seat is fixedly connected with a flange.

[0011] Compared with the related art, the utility model provides a flue pipe that is easy to clean and has the following beneficial effects:

[0012] 1. The utility model provides a flue pipe which is easy to clean. When cleaning, the valve seat is rotated to drive the inner tube to rotate so that the through hole 1 of the inner tube is aligned with the through hole 2 of the sleeve. At this time, the water inlet valve is opened, the output end of the external water pumping equipment is connected to the port of the water inlet valve, and the water pumping equipment is started to pump water into the flow gap. After the water gathers briefly inside the flow gap to form high pressure, it can be sprayed on the inner wall of the inner tube through the through hole, which is convenient for fully cleaning the inner wall of the inner tube. This cleaning method is simple, does not require manual intervention, has low labor intensity, and has high cleaning efficiency, avoiding pollution that harms human health.

[0013] 2. The utility model provides a flue pipe which is easy to clean. When in use, the pipe body is installed on the smoke exhaust device through the flange. During normal smoke exhaust, the valve flap is in an open state, and smoke exhaust can be carried out smoothly. During cleaning, the valve flap is closed to prevent the backflow of cleaning water. The design of the valve flap facilitates the control of smoke exhaust and cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cutaway structure of the outer tube of the utility model;

[0016] Figure 3 This is a schematic diagram of the casing structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model from another angle;

[0018] Figure 5 It is a schematic diagram of the partial structure of the outer pipe of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the positioning ring of the utility model;

[0020] Figure 7 It is a schematic diagram of the structure of the valve disc of the utility model.

[0021] In the figure: 1. outer tube; 2. inner tube; 3. through hole 1; 4. sleeve; 5. through hole 2; 6. positioning ring; 7. flow groove; 8. punch; 9. lower sealing plate; 10. upper sealing plate; 11. water inlet valve; 12. drain valve; 13. flange; 14. valve cover; 15. valve disc; 16. handle; 17. groove; 18. flow gap; 19. valve seat. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment:

[0024] Please refer to Figures 1 - 7 , the present utility model provides a technical solution: a flue pipe convenient for cleaning, including a pipe body, the pipe body is composed of an outer pipe 1 and an inner pipe 2, the top and bottom of the outer pipe 1 are respectively rotatably connected with an upper sealing plate 10 and a lower sealing plate 9, the top and bottom of the inner pipe 2 are respectively fixedly connected with the inner walls of the upper sealing plate 10 and the lower sealing plate 9, a sleeve 4 is sleeved on the outer wall of the inner pipe 2, a first through hole 3 is formed in the inner pipe 2, a second through hole 5 is formed in the sleeve 4, a flow gap 18 is formed between the sleeve 4 and the outer pipe 1, a water inlet valve 11 is arranged on the lower sealing plate 9, and a drain valve 12 is arranged on the inner wall of the outer pipe 1. The upper sealing plate 10 and the lower sealing plate 9 provide installation conditions for the inner pipe 2. The inner pipe 2 is located inside the outer pipe 1 and is used for discharging smoke;

[0025] The outer walls of the lower sealing plate 9 and the upper sealing plate 10 are both fixedly connected with a closing assembly. The closing assembly includes a valve seat 19, the inner wall of the valve seat 19 is fixedly connected with a valve cover 14, the inner wall of the valve cover 14 is rotatably connected with a valve rod, a valve flap 15 is fixedly connected to the outer wall of the valve rod, a handle 16 is rotatably connected to the valve seat 19, the front end of the valve rod penetrates through the valve cover 14 and is fixedly connected with the inner wall of the handle 16, and a flange 13 is fixedly connected to the outer wall of the valve seat 19;

[0026] During use, the pipe body is installed on the smoke exhaust device through the flange 13. During normal smoke exhaust, the valve flap 15 is in the open state, and the through hole 3 of the inner pipe 2 and the through hole 5 of the sleeve 4 are in a misaligned state. The inner pipe 2 is sealed by the sleeve 4 to prevent flue gas from entering the flow gap 18. At this time, smoke can be exhausted smoothly. When it is necessary to clean the inner wall of the pipe body, rotate the valve seat 19 to drive the inner pipe 2 to rotate. At this time, the inner pipe 2 and the sleeve 4 rotate relative to each other. When rotated to a set angle, the through hole 3 of the inner pipe 2 and the through hole 5 of the sleeve 4 are aligned. At this time, open the water inlet valve 11 and connect the output end of the external water pumping device to the port of the water inlet valve 11, so as to pump the cleaning water into the flow gap 18. After briefly converging inside the flow gap 18, a high pressure is formed, and it can then be ejected onto the inner wall of the inner pipe 2 through the through hole 5 and the through hole 3 to fully clean the inner wall of the inner pipe 2. After the cleaning is completed, open the drain valve 12 to drain the water inside the pipe body. After the inside of the pipe body is dried, close the drain valve 12 and the water inlet valve 11, and the smoke exhaust work can continue. This cleaning process is simple, with low labor intensity and high efficiency;

[0027] A groove 17 is formed on the inner wall of the outer pipe 1. A positioning ring 6 is fixedly connected to the outer wall of the sleeve 4. A flow through groove 7 is formed on the inner wall of the positioning ring 6. The outer wall of the positioning ring 6 is rotatably connected to the inner wall of the outer pipe 1. A convex die 8 is arranged on the outer wall of the positioning ring 6, and the outer wall of the convex die 8 is clamped with the inner wall of the groove 17. The sleeve 4 is clamped with the groove 17 through the convex die 8 on the positioning ring 6, and can always remain relatively stationary with respect to the outer pipe 1, so that when the inner pipe 2 rotates, the through hole 3 on its surface is aligned with the through hole 5 on the surface of the sleeve 4, providing conditions for the cleaning work of the inner wall of the inner pipe 2.

[0028] Working principle: During use, the pipe body is installed on the smoke exhaust device through the flange 13. During normal smoke exhaust, the valve flap 15 is in the open state, and the through hole 3 of the inner pipe 2 and the through hole 5 of the sleeve 4 are in a misaligned state. The inner pipe 2 is sealed by the sleeve 4 to prevent flue gas from entering the flow gap 18. At this time, smoke can be exhausted smoothly. When it is necessary to clean the inner wall of the pipe body, rotate the valve seat 19 to drive the inner pipe 2 to rotate. At this time, the inner pipe 2 and the sleeve 4 rotate relative to each other. When rotated to a set angle, the through hole 3 of the inner pipe 2 and the through hole 5 of the sleeve 4 are aligned. At this time, open the water inlet valve 11 and connect the output end of the external water pumping device to the port of the water inlet valve 11, so as to pump the cleaning water into the flow gap 18. After briefly converging inside the flow gap 18, a high pressure is formed, and it can then be ejected onto the inner wall of the inner pipe 2 through the through hole 5 and the through hole 3 to fully clean the inner wall of the inner pipe 2. After the cleaning is completed, open the drain valve 12 to drain the water inside the pipe body. After the inside of the pipe body is dried, close the drain valve 12 and the water inlet valve 11, and the cleaning work is very efficient.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flue pipe that is easy to clean, comprising a pipe body, characterized in that: The tube body is composed of an outer tube (1) and an inner tube (2); the top and bottom ends of the outer tube (1) are rotatably connected to an upper sealing plate (10) and a lower sealing plate (9), respectively; the top and bottom ends of the inner tube (2) are fixedly connected to the inner walls of the upper sealing plate (10) and the lower sealing plate (9), respectively; the outer wall of the inner tube (2) is sleeved with a sleeve (4); a first through hole (3) is provided on the inner tube (2); a second through hole (5) is provided on the sleeve (4); a flow gap (18) is formed between the sleeve (4) and the outer tube (1); a water inlet valve (11) is provided on the lower sealing plate (9); and a water discharge valve (12) is provided on the inner wall of the outer tube (1).

2. The easy-to-clean flue pipe according to claim 1, characterized in that: The inner wall of the outer tube (1) is provided with a groove (17), the outer wall of the sleeve (4) is fixedly connected with a positioning ring (6), the inner wall of the positioning ring (6) is provided with a flow groove (7), the outer wall of the positioning ring (6) is rotatably connected to the inner wall of the outer tube (1), the outer wall of the positioning ring (6) is provided with a punch (8), and the outer wall of the punch (8) is clamped with the inner wall of the groove (17).

3. The easy-to-clean flue pipe according to claim 1, characterized in that: The outer walls of the lower sealing plate (9) and the upper sealing plate (10) are both fixedly connected with sealing components.

4. The easy-to-clean flue pipe according to claim 3, characterized in that: The sealing assembly comprises a valve seat (19), the inner wall of the valve seat (19) is fixedly connected to a valve cover (14), the inner wall of the valve cover (14) is rotatably connected to a valve stem, and the outer wall of the valve stem is fixedly connected to a valve flap (15).

5. The easy-to-clean flue pipe according to claim 4, characterized in that: The valve seat (19) is rotatably connected to a handle (16), and the front end of the valve stem passes through the valve cover (14) and is fixedly connected to the inner wall of the handle (16).

6. The easy-to-clean flue pipe according to claim 4, characterized in that: The outer wall of the valve seat (19) is fixedly connected to a flange (13).

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