Novel chimney heat tracing device

Abstract

The utility model discloses a novel chimney heat tracing device, and relates to the technical field of chimney transformation. The chimney comprises a chimney main body which is vertically arranged; the side part of the chimney main body is communicated with an air inlet; a water accumulating plate is correspondingly sealed and fixed at the bottom end in the chimney main body; a drainage pipe is arranged below the water accumulation plate; the other end of the drainage pipe fixedly penetrates through the cylinder wall of the chimney main body; a first heat tracing pipe is correspondingly arranged at the lower part of the outer cylinder wall of the chimney main body in a surrounding manner along the circumferential direction; the first heat tracing pipe is connected with the outer cylinder wall of the chimney main body through a plurality of first connecting pieces; the first heat tracing pipe is of a coiled pipe structure; and a second heat tracing pipe is correspondingly and spirally wound below the water accumulating plate in the circumferential direction. The anti-freezing chimney has the advantages that the temperature of the water accumulation plates on the lower portion and the bottom of the barrel wall of the chimney body can be prevented from being too low, and the problems that the bottom of the chimney is frozen and the drainage pipe is frozen are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of chimney transformation, in particular to a new type of chimney heat tracing device. Background Technique

[0002] In various fields related to high-altitude flue gas emissions, chimneys are essential emission facilities. Since the flue gas discharged inevitably contains water vapor, drain pipes are usually installed at the bottom of the chimney to discharge the moisture in the flue gas. However, the flue gas has a certain temperature. Once the external temperature is low during discharge, the wet flue gas is likely to frost when it meets the cold, accumulate at the bottom of the chimney barrel wall, and even cause the bottom of the chimney to freeze, freezing the drain pipe at the bottom of the chimney, seriously affecting the drainage measures for the chimney. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is, aiming at the above-mentioned existing technical deficiencies, to provide a new type of chimney heat tracing device, which can avoid the too low temperature of the lower part and the bottom water accumulation plate of the chimney main body barrel wall, and effectively prevent the problems of ice formation at the bottom of the chimney and freezing of the drain pipe.

[0004] The technical scheme adopted by the utility model is: to provide a new type of chimney heat tracing device, which includes a vertically arranged chimney main body; an air inlet is communicated with the side part of the chimney main body; a water accumulation plate is hermetically fixed corresponding to the inner bottom end of the chimney main body; a drain pipe is arranged below the water accumulation plate; one end of the drain pipe is communicated with the center of the water accumulation plate, and the other end is fixedly penetrated through the barrel wall of the chimney main body; a first heat tracing pipe is correspondingly arranged around the lower part of the outer barrel wall of the chimney main body along the circumferential direction; the first heat tracing pipe is connected with the outer barrel wall of the chimney main body through a plurality of first connecting pieces; the first heat tracing pipe is of a serpentine pipe structure; a second heat tracing pipe is correspondingly arranged in a spiral winding manner along the circumferential direction below the water accumulation plate; the second heat tracing pipe is connected with the lower end of the water accumulation plate through a plurality of second connecting pieces; the inlet and outlet of the second heat tracing pipe are both fixedly penetrated through the barrel wall of the chimney main body; the inlet of the second heat tracing pipe is communicated with an inlet flange fixed on the outer barrel wall of the chimney main body; the outlet of the second heat tracing pipe is correspondingly communicated with the inlet of the first heat tracing pipe; the outlet of the first heat tracing pipe is communicated with an outlet flange fixed on the outer barrel wall of the chimney main body; the inlet flange is used for communicating with an external heat source pipeline.

[0005] Further optimizing the technical scheme, the water accumulation plate of the new type of chimney heat tracing device is of a conical structure with a larger upper end diameter than the lower end diameter.

[0006] Further optimizing the technical scheme, a maintenance opening is opened at the bottom of the barrel wall of the chimney main body of the new type of chimney heat tracing device; a cover is detachably connected corresponding to the outside of the maintenance opening.

[0007] Further optimizing the technical scheme, the distance between the first heat tracing pipe and the outer barrel wall of the chimney main body of the new type of chimney heat tracing device is 50 mm; the distance between the second heat tracing pipe and the lower end face of the water accumulation plate is 50 mm.

[0008] The beneficial effects of the present utility model are as follows:

[0009] The air inlet on the side of the chimney main body is used to connect the pipeline for discharging flue gas, and the water accumulation plate at the bottom of the chimney main body can carry the falling soot and the water sedimented in the wet flue gas.

[0010] A first tracing heat pipe is arranged at the lower part of the outer cylindrical wall of the chimney main body. Through the flow of the heat source inside the first tracing heat pipe, it can prevent the temperature of the lower part of the cylindrical wall of the chimney main body from being too low, and prevent the water vapor sedimented from the wet flue gas from frosting or freezing and condensing on the lower part of the chimney main body; the first tracing heat pipe surrounds the chimney main body circumferentially, which can provide a more comprehensive tracing heat effect on the whole lower part of the chimney main body, and its serpentine pipe structure can further increase the acting range when tracing heat for the chimney main body, and at the same time increase the path length of the heat source traveling inside the first tracing heat pipe, improving the heat utilization rate of the heat source.

[0011] Through the flow of the heat source inside the second tracing heat pipe, it can prevent the water vapor sedimented from the wet flue gas from frosting or freezing on the water accumulation plate, effectively avoiding the internal freezing and blockage of the drain pipe connected to the water accumulation plate, and ensuring that the drain pipe can still smoothly discharge the water inside the chimney main body in a low-temperature environment; the second tracing heat pipe is correspondingly spirally wound and arranged under the water accumulation plate, which can provide a more comprehensive tracing heat effect on the whole water accumulation plate, and also increase the path length of the heat source traveling inside the second tracing heat pipe, improving the heat utilization rate of the heat source. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a schematic structural diagram at the maintenance opening;

[0014] Figure 3 is a schematic structural diagram at the water accumulation plate.

[0015] In the figure, 1. chimney main body; 2. air inlet; 3. water accumulation plate; 4. drain pipe; 5. first tracing heat pipe; 6. first connecting piece; 7. second tracing heat pipe; 8. second connecting piece; 9. inlet flange; 10. outlet flange; 11. maintenance opening; 12. cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] As Figures 1 - 3As shown in the figure, the new chimney heat tracing device includes a vertically arranged chimney main body 1; an air inlet 2 is connected to the side of the chimney main body 1; a water accumulation plate 3 is hermetically fixed corresponding to the inner bottom end of the chimney main body 1; a drain pipe 4 is arranged below the water accumulation plate 3; one end of the drain pipe 4 is communicated with the center of the water accumulation plate 3, and the other end fixedly penetrates through the barrel wall of the chimney main body 1; a first heat tracing pipe 5 is correspondingly arranged around the lower part of the outer barrel wall of the chimney main body 1 along the circumferential direction; the first heat tracing pipe 5 is connected to the outer barrel wall of the chimney main body 1 through a plurality of first connecting pieces 6; the first heat tracing pipe 5 is of a serpentine pipe structure; a second heat tracing pipe 7 is spirally wound and arranged below the water accumulation plate 3 along the circumferential direction; the second heat tracing pipe 7 is connected to the lower end of the water accumulation plate 3 through a plurality of second connecting pieces 8; the inlet and outlet of the second heat tracing pipe 7 both fixedly penetrate through the barrel wall of the chimney main body 1; the inlet of the second heat tracing pipe 7 is communicated with an inlet flange 9 fixed on the outer barrel wall of the chimney main body 1; the outlet of the second heat tracing pipe 7 is correspondingly communicated with the inlet of the first heat tracing pipe 5; the outlet of the first heat tracing pipe 5 is communicated with an outlet flange 10 fixed on the outer barrel wall of the chimney main body 1; the inlet flange 9 is used for being communicated with an external heat source pipeline.

[0018] In this technical solution, the lower part of the barrel wall of the chimney main body 1 and the water accumulation plate 3 are respectively subjected to heat tracing treatment through the first heat tracing pipe 5 and the second heat tracing pipe 7, effectively avoiding the problems that water vapor in wet flue gas freezes or even forms ice inside the chimney main body 1 under low temperature, and avoiding the problem that the drain pipe 4 is blocked by freezing, ensuring the normal smoke exhaust of the chimney main body 1 and the normal drainage of the chimney main body 1 under low temperature.

[0019] Connect the inlet flange 9 to an external heat source pipeline, inject a heat source (such as hot steam, hot water, etc.) into the second heat tracing pipe 7, the heat source flows along the second heat tracing pipe 7, and realizes the heat tracing effect on the water accumulation plate 3. After the heat source enters the first heat tracing pipe 5, it flows along the first heat tracing pipe 5, and can realize the heat tracing effect on the lower part of the barrel wall of the chimney main body 1. Under low temperature environment, ensure that the temperature of the lower part of the barrel wall of the chimney main body 1 and the water accumulation plate 3 at the bottom will not be too low, resulting in the problem that water vapor in wet flue gas freezes or even forms ice, and avoid the drain pipe 4 from being blocked by freezing, ensuring the smooth smoke exhaust and drainage of the chimney main body 1 under low temperature environment.

[0020] In this technical solution, by correspondingly connecting the outlet of the second heat tracing pipe 7 to the inlet of the first heat tracing pipe 5, the heat source can flow through the second heat tracing pipe 7 and the first heat tracing pipe 5 in sequence, improving the heat utilization rate of the heat source. Of course, according to the heat demand of the heat source during heat tracing, such as when the external temperature is too low and the heat supplied by the heat source is relatively low, the first heat tracing pipe 5 and the second heat tracing pipe 7 can also be separated, and the two can be separately injected with the heat source.

[0021] Such as Figure 3As shown, the water accumulation plate 3 is a conical structure with a larger diameter at the upper end than at the lower end. With this structural shape of the water accumulation plate 3, it is convenient for the dropped water to converge towards the middle of the water accumulation plate 3, which helps the drain pipe 4 to drain more thoroughly.

[0022] As Figure 2 As shown, a maintenance opening 11 is provided at the bottom of the barrel wall of the chimney main body 1; a cover 12 is detachably connected corresponding to the outside of the maintenance opening 11. By opening the cover 12, the cleaning and maintenance personnel can conveniently enter the inside of the chimney main body 1 from the maintenance opening 11 to perform operations such as cleaning and maintenance on the inside of the chimney main body 1.

[0023] The first heat tracing pipe 5 is 50 mm away from the outer barrel wall of the chimney main body 1; the second heat tracing pipe 7 is 50 mm away from the lower end face of the water accumulation plate 3. The first heat tracing pipe 5 and the second heat tracing pipe 7 have a certain gap with the heat tracing parts respectively, which not only ensures the heat tracing effect but also prevents the inconvenience of installation, maintenance and other operations caused by direct contact with the heat tracing position.

[0024] It can be understood that the present utility model is described by some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A new type of chimney heating device, characterized by: The invention comprises a chimney body (1) arranged vertically; the side of the chimney body (1) is connected with an air inlet (2); a water accumulation plate (3) is sealed and fixed to the inner bottom end of the chimney body (1); a drainage pipe (4) is arranged below the water accumulation plate (3); one end of the drainage pipe (4) is connected with the center of the water accumulation plate (3), and the other end is fixed and penetrates the wall of the chimney body (1); a first heating pipe (5) is arranged around the lower part of the outer wall of the chimney body (1) in the circumferential direction; the first heating pipe (5) is connected to the outer wall of the chimney body (1) through a plurality of first connecting pieces (6); the first heating pipe (5) is a serpentine pipe structure; the water accumulation plate (3) A second heating pipe (7) is arranged at the bottom in a corresponding spiral winding along the circumferential direction; the second heating pipe (7) is connected to the lower end of the water accumulation plate (3) through a plurality of second connecting pieces (8); the inlet and outlet of the second heating pipe (7) are both fixedly penetrated through the wall of the chimney body (1); the inlet of the second heating pipe (7) is connected to an inlet flange (9) fixed to the outer wall of the chimney body (1); the outlet of the second heating pipe (7) is correspondingly connected to the inlet of the first heating pipe (5); the outlet of the first heating pipe (5) is connected to an outlet flange (10) fixed to the outer wall of the chimney body (1); the inlet flange (9) is used to be connected to an external heat source pipeline.

2. The novel chimney heating device according to claim 1 is characterized in that: The water accumulation plate (3) is a conical structure with an upper end diameter larger than a lower end diameter.

3. The novel chimney heating device according to claim 1 is characterized in that: An inspection opening (11) is provided at the bottom of the wall of the chimney body (1); a sealing cover (12) is detachably connected to the outside of the inspection opening (11).

4. The novel chimney heating device according to claim 1 is characterized in that: The first heat tracing pipe (5) is 50 mm away from the outer wall of the chimney body (1); and the second heat tracing pipe (7) is 50 mm away from the lower end surface of the water accumulation plate (3).

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