CN218954913U

CN218954913U - Chimney and condensate collecting device thereof

Info

Publication number: CN218954913U
Application number: CN202221959933.XU
Authority: CN
Inventors: 马骏骧; 杨薇
Original assignee: China Power Engineering Consulting Group East China Electric Power Design Institute Co Ltd
Current assignee: China Power Engineering Consulting Group East China Electric Power Design Institute Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-05-02
Anticipated expiration: 2032-07-28

Abstract

The utility model provides a smoke exhaust barrel and a condensate collecting device thereof, wherein the condensate collecting device comprises: the liquid collecting ring is fixed on the inner wall of the smoke exhaust tube, is obliquely arranged along the circumferential direction, has a cross section of a web plate with a T-shaped structure and forms a set angle with the inner wall of the smoke exhaust tube; the collecting ports are communicated with the liquid collecting ring and are sequentially arranged at different elevations of the liquid collecting ring; the liquid discharge pipes are arranged corresponding to the collecting ports, and the liquid discharge pipes are connected outside the smoke exhaust cylinder through pipelines to form a pipe network. The utility model can conform to the flowing direction of condensate on the inner wall of the smoke discharging barrel under the condition of different smoke flow rates, realizes simultaneous collection of condensate flowing downwards and condensate flowing upwards in the space staggered at the same position through the unique T-shaped section form of the inclined web plate, is not only suitable for the condition that the diameter of the smoke discharging barrel cannot be enlarged in the existing chimney reconstruction, but also can improve the condensate collecting efficiency in a newly-built chimney.

Description

Chimney and condensate collecting device thereof

Technical Field

The utility model relates to the technical field of building structures, in particular to a condensate collecting device of a smoke exhaust barrel and the smoke exhaust barrel.

Background

With the increasing requirements of environmental protection and energy saving and efficiency, wet desulfurization without a GGH (Gas Heater) has become a common configuration of thermal power plants. Under the working condition, the flue gas temperature is low, dew condensation is serious, corrosiveness is strong, on one hand, the corrosion resistance of the smoke exhaust tube is challenged, and on the other hand, the problem of 'chimney rain' is also brought.

However, the existing chimney design of earlier construction is fashionable and does not consider the problem of 'chimney rain', the diameter of a smoke discharging tube is small, the smoke flow rate is too high, condensate self weight formed by condensation on the inner wall of the smoke discharging tube is insufficient to offset upward smoke thrust, the current condensate collecting and discharging system mainly comprises a collecting box arranged at the lowest elevation of each collecting ring, condensate can be collected, dredged and discharged only in a lower smoke flow rate state, but the condensate cannot be effectively collected and discharged to the upward flowing condensate, and the condensate is discharged out of the chimney along with smoke and falls on the ground around the chimney to form 'chimney rain', so that adverse effects are brought to production and life of a peripheral area.

Disclosure of Invention

The utility model provides a condensate collecting device of a smoke exhaust tube for solving the technical problems.

The utility model also provides a smoke exhaust tube.

The technical scheme adopted by the utility model is as follows:

the first aspect of the present utility model provides a condensate collecting device of a smoke exhaust barrel, comprising: the liquid collecting ring is fixed on the inner wall of the smoke exhaust tube, the liquid collecting ring is obliquely arranged along the circumferential direction, the cross section of the web plate of the liquid collecting ring is of a T-shaped structure, and the web plate of the liquid collecting ring and the inner wall of the smoke exhaust tube form a set angle; the collecting ports are communicated with the liquid collecting ring and are sequentially arranged at different elevations of the liquid collecting ring; the liquid discharge pipes are arranged corresponding to the collecting ports.

Specifically, the web of the liquid collecting ring is higher than the inner wall of the exhaust pipe at the side close to the inner wall of the exhaust pipe.

Specifically, the collection port includes: the high-level collecting port is positioned at the highest elevation of the liquid collecting and collecting ring; the two middle position collecting ports are symmetrically arranged at the middle elevation of the liquid collecting and collecting ring; the low-level collecting port is positioned at the lowest elevation of the liquid collecting ring.

Specifically, the liquid discharge pipe is connected with an external wastewater treatment system after the smoke discharging cylinder is connected through a pipeline to form a pipe network.

A second aspect of the utility model provides a smoke evacuation cartridge comprising the condensate collection apparatus of the first aspect of the utility model.

The utility model has the beneficial effects that:

the liquid collecting ring adopts a unique T-shaped cross section form of the inclined web plate to form an upper sharp corner area and a lower sharp corner area, not only can effectively catch condensate flowing downwards when the flow rate of flue gas is low, but also can effectively catch condensate flowing upwards when the flow rate of flue gas is high, the whole liquid collecting ring is inclined with a certain height difference along the circumferential direction, condensate caught above the liquid collecting ring naturally flows downwards when the flow rate of flue gas is low, and condensate caught below the liquid collecting ring flows upwards under the drive of the flow rate of flue gas, so that the liquid collecting ring is particularly suitable for the condition that the diameter of a smoke discharging tube cannot be enlarged in the existing chimney reconstruction, and meanwhile, the condensate collecting efficiency can be improved in a newly-built chimney.

Drawings

FIG. 1 is a cross-sectional view of a condensate collection device of a chimney according to one embodiment of the utility model

FIG. 2 is a cross-sectional view taken at 1-1 of FIG. 1;

FIG. 3 is a cross-sectional view taken at 2-2 of FIG. 1;

FIG. 4 is a cross-sectional view taken at (1) in FIG. 1;

FIG. 5 is a cross-sectional view taken at (2) in FIG. 1;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 4;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 4;

fig. 8 is a cross-sectional view at C-C in fig. 5.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 8, the condensate collecting device of the smoke exhaust pipe provided by the utility model comprises: a liquid collecting ring 10, a collecting port and a liquid discharge pipe.

The liquid collecting ring 10 is fixed on the inner wall of the smoke exhaust tube 100, the liquid collecting ring 10 is obliquely arranged along the circumferential direction, the cross section of the web 11 of the liquid collecting ring is of a T-shaped structure, and the web 11 of the liquid collecting ring and the inner wall of the smoke exhaust tube 100 form a set angle (for example, 15 degrees); the collecting ports are communicated with the liquid collecting ring 10, and are sequentially arranged at different elevations of the liquid collecting ring 10; the fluid-discharge tube includes a plurality ofly, and every fluid-discharge tube corresponds every collection mouth setting.

In one embodiment of the utility model, the side of the web 11 of the collector ring that is closer to the inner wall of the chimney 100 is higher than the side that is farther from the inner wall of the chimney.

The web openings of the collector ring are shown at 13 in fig. 7.

In one embodiment of the present utility model, the collection port may include: a high-level collection port located at the highest elevation of the liquid collection ring (at (2) in fig. 1); the two middle position collecting ports are symmetrically arranged at the middle elevation of the liquid collecting and collecting ring; the low level collection port is located at the lowest elevation of the liquid collection ring (at (1) in fig. 1). In fig. 1 to 8, 21 is a lower collection port bottom plate, and 22 is a lower collection port side plate.

In one embodiment of the utility model, after the smoke discharging tube is connected through the pipeline to form a pipe network, the liquid discharging tube is connected to an external wastewater treatment system, so that the harm of chimney rain can be avoided, the reutilization of wastewater can be realized, and the environment is protected and energy is saved.

Specifically, the condensate collecting device consists of a bidirectional inclined liquid collecting ring 10, a high-middle-low multi-collecting opening and a liquid discharge pipe, wherein the liquid collecting ring is arranged on the inner wall of the smoke discharging cylinder. The cross section of the liquid collecting ring 10 is similar to a T shape, the web 11 of the T-shaped cross section is inclined along the circumferential direction, and also forms a certain angle with the wall of the smoke discharging tube, and the side close to the wall of the tube is high, and the side far away from the wall of the tube is low.

When the flow rate of the flue gas is low, condensate on the inner wall of the smoke discharging tube 100 flows downwards along the tube wall, meets the liquid collecting and collecting ring 10, and then converges at the included angle between the web 11 and the flange 12 of the liquid collecting and collecting ring 10, flows to the lowest point along the whole inclined direction of the liquid collecting and collecting ring 10, enters the low-level collecting port, and finally is led out of the smoke discharging tube through the low-level liquid discharge tube 31 at the low-level collecting port.

As shown in fig. 2, when the flow rate of the flue gas is high, the condensate on the inner wall of the smoke exhaust tube 100 flows upwards along the tube wall, meets the liquid collecting ring 10, is collected at the included angle between the web plate of the liquid collecting ring 10 and the smoke exhaust tube wall, flows to the highest point along the overall inclined direction of the liquid collecting ring 10, enters the high-level collecting port, and finally is led out of the smoke exhaust tube through the high-level liquid discharge tube 32 at the high-level collecting port.

As shown in fig. 3, in order to improve the collection efficiency, two middle position collection ports are symmetrically arranged at the middle elevation of the liquid collection ring 10, so that condensate can be trapped in advance when the flowing power is insufficient, and the condensate is led out of the smoke exhaust pipe through a middle position liquid discharge pipe 33 at the middle position collection ports.

In summary, according to the condensate collecting device of the smoke exhaust pipe provided by the embodiment of the utility model, the flowing direction of condensate on the inner wall of the smoke exhaust pipe under the condition of different smoke flow rates can be complied, the condensate flowing downwards and the condensate flowing upwards can be collected simultaneously in the space staggered at the same position through the unique T-shaped section form of the inclined web plate, and then the collected condensate is rapidly discharged out of the smoke exhaust pipe by being matched with the liquid discharge pipes of the high, medium and low collecting ports, so that the threat of 'chimney rain' is greatly reduced, the device is not only suitable for the condition that the diameter of the smoke exhaust pipe cannot be amplified in the existing chimney reconstruction, but also can improve the condensate collecting efficiency in a newly-built chimney.

In addition, the utility model also provides a smoke exhaust tube 100, which comprises the condensate collecting device of the smoke exhaust tube.

According to the chimney provided by the embodiment of the utility model, the condensate collecting device of the chimney can conform to the flowing direction of condensate on the inner wall of the chimney under the condition of different flue gas flow rates, the condensate flowing downwards and the condensate flowing upwards can be collected simultaneously in the space staggered at the same position through the unique inclined web T-shaped section mode, and the collected condensate is rapidly discharged out of the chimney by being matched with the drain pipes of the high, medium and low collecting ports, so that the threat of 'chimney rain' is greatly reduced.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A condensate collection apparatus for a fume extractor, comprising:

the liquid collecting ring is fixed on the inner wall of the smoke exhaust tube, the liquid collecting ring is obliquely arranged along the circumferential direction, the cross section of the web plate of the liquid collecting ring is of a T-shaped structure, and the web plate of the liquid collecting ring and the inner wall of the smoke exhaust tube form a set angle;

the collecting ports are communicated with the liquid collecting ring and are sequentially arranged at different elevations of the liquid collecting ring;

the liquid discharge pipes are arranged corresponding to the collecting ports.

2. The condensate collection apparatus of claim 1 wherein the web of the liquid collection ring is higher on a side of the inner wall of the chimney than on a side of the inner wall of the chimney.

3. The condensate collection device of a chimney of claim 1, wherein the collection port comprises:

the high-level collecting port is positioned at the highest elevation of the liquid collecting and collecting ring;

the two middle position collecting ports are symmetrically arranged at the middle elevation of the liquid collecting and collecting ring;

the low-level collecting port is positioned at the lowest elevation of the liquid collecting ring.

4. The condensate collection apparatus of claim 1, wherein the drain pipe is connected to an external wastewater treatment system after the chimney is connected to form a pipe network by a pipe.

5. A smoke cartridge comprising a condensate collection apparatus of a smoke cartridge according to any one of claims 1 to 4.