CN210638007U

CN210638007U - Combined threaded smoke tube type waste heat boiler

Info

Publication number: CN210638007U
Application number: CN201921641201.4U
Authority: CN
Inventors: 欧宁宁; 王晓龙
Original assignee: Qingdao Shengli Boiler Co ltd
Current assignee: Qingdao Shengli Boiler Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-29
Anticipated expiration: 2029-09-27

Abstract

The utility model relates to a combination screw thread tobacco pipe formula exhaust-heat boiler, which comprises a base, be provided with first row of drum and second row of drum on the chassis side by side, the first row of drum is the same with the quantity of second row of drum well drum, the vertical setting of drum. The lower end of the boiler barrel is provided with an ash falling hopper, and a closed space is enclosed between the ash falling hopper and a tube plate at the lower end of the boiler barrel; the lower end of the ash falling hopper is provided with a drain outlet, and a plug is arranged in the drain outlet; a plurality of threaded smoke pipes which are vertically arranged are arranged in each boiler barrel, and the upper end and the lower end of each threaded smoke pipe respectively penetrate through the boiler barrel; the upper end of the threaded smoke pipe in the first row of the boiler barrel is communicated with the first smoke box, the lower end of the threaded smoke pipe in the first row of the boiler barrel is inserted into the ash falling bucket, the side wall of the first smoke box is provided with a smoke inlet, and the upper end of the threaded smoke pipe in the second row of the boiler barrel is communicated with the second smoke box. The utility model discloses can utilize single return stroke screw thread tobacco pipe to realize the transfer of flue gas in a plurality of boilers, make things convenient for the installation of a boiler section of thick bamboo.

Description

Combined threaded smoke tube type waste heat boiler

Technical Field

The utility model belongs to the technical field of boiler equipment, concretely relates to combination screw thread tobacco pipe formula exhaust-heat boiler.

Background

The waste heat boiler is a boiler which generates steam or hot water by using waste heat in an industrial process, and can heat water in a boiler drum by using high-temperature flue gas to form high-temperature water or water vapor. The steam can continue to push the turbine to rotate, and the high-temperature water can be used for heating.

The inventor knows that the conventional screwed smoke pipe is generally a multi-return smoke pipe, and the screwed smoke pipe is transferred in a plurality of drums by turning and bending the screwed smoke pipe, but the arrangement mode causes the screwed smoke pipe to easily accumulate soot at the bent part, so that the cleaning is inconvenient.

Meanwhile, the existing boiler barrel is supported by the bottom outer wall and the steel beam, the steel beam needs to be welded during installation, and the process is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned prior art, provide a combination screw thread tobacco pipe formula exhaust-heat boiler, can utilize single return stroke screw thread tobacco pipe to realize the transfer of flue gas in a plurality of boilers, make things convenient for the installation of a boiler section of thick bamboo.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a combined threaded smoke tube type waste heat boiler comprises a chassis, wherein a first row of drums and a second row of drums are arranged on the chassis side by side, the number of the drums in the first row of drums is the same as that of the drums in the second row of drums, and the drums are vertically arranged; the lower end of the boiler barrel is provided with an ash falling hopper, and a closed space is enclosed between the ash falling hopper and a tube plate at the lower end of the boiler barrel; the lower end of the ash falling hopper is provided with a drain outlet, and a plug is arranged in the drain outlet; a plurality of threaded smoke pipes which are vertically arranged are arranged in each boiler barrel, and the upper end and the lower end of each threaded smoke pipe respectively penetrate through the boiler barrel; the upper end of the threaded smoke pipe in the first row of the boiler barrel is communicated with a first smoke box, the lower end of the threaded smoke pipe is respectively inserted into an ash falling hopper, the side wall of the first smoke box is provided with a smoke inlet,

the upper ends of the threaded smoke pipes in the second row of drums are respectively communicated with a second smoke box, the lower ends of the threaded smoke pipes are respectively inserted into an ash falling bucket, and the side wall of the second smoke box is provided with a smoke outlet; the ash falling hopper below the first row of drums is respectively communicated with the ash falling hopper below the adjacent second row of drums so as to realize the transfer of flue gas between the two rows of drums.

Furthermore, two drums in the first row of drums share one ash falling hopper, and two drums in the second row of boilers share one ash falling hopper.

Furthermore, the inner cavity of the threaded smoke pipe in each boiler barrel forms a smoke passage, and the space between the threaded smoke pipe and the inner wall of the boiler barrel forms a water storage space.

The boiler comprises a first row of drums, a second row of drums, a first water collecting pipe, a second water collecting pipe, an expansion water tank, a water distribution pipe and an external atmospheric environment, wherein the expansion water tank is arranged above the drums and supported by the drums, the expansion water tank is communicated with the first water collecting pipe and the second water collecting pipe respectively, the first water collecting pipe is communicated with the drums in the first row of drums through the water distribution pipe respectively, the second water collecting pipe is communicated with the drums in the second row of drums respectively, and the upper portion of the expansion water tank is communicated with the external atmospheric environment.

Further, the chassis comprises a supporting plate, the lower end of the supporting plate is supported through a supporting column, a plurality of mounting holes are formed in the upper end of the supporting plate, the number of the mounting holes is the same as that of the boiler barrels, and the lower end of the boiler barrel can be inserted into the mounting holes and positioned.

The utility model has the advantages that:

1) by adopting the single-return-stroke threaded smoke pipe, namely, the adjacent smoke pipes are not connected, the ash accumulated in the smoke pipe can directly fall from the smoke pipe and is discharged into the ash falling hopper, and the ash cannot be accumulated in the vertically arranged threaded smoke pipe.

2) The mode that the first row of drums is communicated with the ash falling buckets in the second row of drums is adopted, and the ash falling buckets are in a completely closed state when ash is not discharged, so that the flue gas flowing out of the threaded smoke pipes in the first row of boilers can be discharged into the threaded smoke pipes of the second row of boilers through the communication between the ash falling buckets, and the flue gas is transferred between the two rows of boilers under the condition that the threaded smoke pipes are not connected.

3) A plurality of threaded smoke pipes are adopted in each boiler barrel, the threaded smoke pipes can uniformly penetrate through the tube plates at the upper end and the lower end of each boiler barrel, the temperature of the tube plates is uniform during working, temperature stress is eliminated, and the phenomenon of tube plate cracks is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a sectional view of the overall structure in a side view direction according to an embodiment of the present invention;

fig. 2 is a front view of the overall structure in the embodiment of the present invention.

In the figure: 1. a flue gas inlet; 2. the heating surface of the smoke pipe; 3. a dust falling hopper; 4. a flue gas outlet; 5. an expansion tank; 6. a rain cover; 7. a drum; 8. a second header pipe; 9. a second smoke box; 10. a first header pipe; 11. a first smoke box.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

For convenience of description, the words "up, down, left, right" in the present invention, if appearing, are intended to correspond only to the upper, lower, left, right directions of the drawings themselves, not to limit the structure, but merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

In a typical embodiment of the present invention, as shown in fig. 1-2, a combined screw-thread smoke tube type exhaust-heat boiler comprises a chassis, a first row of drums and a second row of drums are arranged on the chassis side by side, the number of drums 7 in the first row of drums and the second row of drums is the same, and the drums 7 are vertically arranged.

Specifically, in some embodiments, the first and second arrays of drums each include 4 drums 7, and the number of drums in the entire apparatus is 8. In other embodiments, the number of drums is set by the person skilled in the art.

The lower end of the boiler barrel 7 is provided with an ash falling hopper 3, and a closed space is formed by enclosing the ash falling hopper 3 and a tube plate at the lower end of the boiler barrel 7.

The lower end of the ash falling hopper 3 is provided with a drain outlet, and a plug is arranged in the drain outlet.

A plurality of threaded smoke pipes which are vertically arranged are arranged in each boiler barrel 7, and the upper end and the lower end of each threaded smoke pipe respectively penetrate through the boiler barrel 7.

The upper end of the threaded smoke pipe in the first row of the boiler barrel is communicated with a first smoke box 11, the lower end of the threaded smoke pipe is respectively inserted into an ash falling bucket 3, and the side wall of the first smoke box 11 is provided with a smoke inlet 1.

The upper ends of the threaded smoke pipes in the second row of drums are respectively communicated with a second smoke box 9, the lower ends of the threaded smoke pipes are respectively inserted into the ash falling hopper 3, and the side wall of the second smoke box 9 is provided with a smoke outlet 4.

Specifically, the inner side surface of the threaded smoke pipe forms a smoke pipe heating surface 2.

The ash falling hopper 3 below the first row of the boiler barrels is respectively communicated with the ash falling hopper 3 below the adjacent second row of the boiler barrels so as to realize the transfer of the flue gas between the two rows of the boiler barrels.

In particular, in some embodiments, a flue gas connecting pipe may be disposed between the ash falling hopper below the first row of drums and the ash falling hopper below the second row of drums, and the flue gas is transferred by using the flue gas connecting pipe.

In other embodiments, the ash falling buckets below the first row of drums and the ash falling buckets below the second row of drums can be integrally formed, the two ash falling buckets are separated by a partition plate, and the partition plate is provided with a through hole, so that the flue gas can be transferred between the two ash falling buckets.

Two drums 7 in the first row of drums 7 share one ash falling hopper 3, and two drums in the second row of boilers share one ash falling hopper 3.

In other embodiments, one ash hopper may be provided at the lower end of each drum, or all drums may share one ash hopper.

The inner cavity of the threaded smoke pipe in each boiler barrel 7 forms a smoke passage, and the space between the threaded smoke pipe and the inner wall of the boiler barrel 7 forms a water storage space.

This scheme still includes expansion tank 5, expansion tank 5 sets up 7 tops of a boiler section of thick bamboo, and expansion tank 5 supports through a boiler section of thick bamboo 7, expansion tank 5 communicates with first collector pipe 10 and second collector pipe 8 respectively, first collector pipe 10 communicates with a boiler section of thick bamboo 7 in the first row of boiler section of thick bamboo respectively through the distributive pipe, second collector pipe 8 communicates with a boiler section of thick bamboo 7 in the second row of boiler section of thick bamboo respectively, expansion tank 5's upper portion and external atmospheric environment intercommunication.

The chassis comprises a supporting plate, the lower end of the supporting plate is supported through a supporting column, a plurality of mounting holes are formed in the upper end of the supporting plate, the number of the mounting holes is the same as that of the boiler barrel 7, and the lower end of the boiler barrel 7 can be inserted into the mounting holes and positioned.

The upper part of the second smoke box 9 is provided with a soot blower, the top of the second smoke box 9 is provided with a plurality of soot blowing holes, and the air outlet direction of the soot blower is right opposite to the soot blowing holes.

Rain-proof cover 6 is equipped with above expansion tank 5, rain-proof cover 6 supports through drum 7.

The working principle is as follows: when the device is used, the expansion water tank 5 is used for supplying water to each boiler barrel 7, then the residual heat flue gas enters from the air inlet of the first smoke box 11, the flue gas flows into the threaded smoke pipes in the first row of boiler barrels respectively and flows downwards, and the threaded smoke pipes exchange heat with the water in the first row of boiler barrels. When the flue gas flows out from the lower ends of the first row of drums, the flue gas enters the ash falling hopper 3 below the first row of drums, and dust separated from the flue gas is accumulated at the ash falling hopper 3; the flue gas can enter the ash falling hopper 3 below the first row of drums, enter the ash falling hopper 3 below the second row of drums, enter the ash falling hopper from the lower ends of the threaded smoke pipes in the second row of drums, flow upwards and flow out from the flue gas outlet 4 of the second smoke box 9, and the flue gas exchanges heat with water in the second row of drums in the flowing process.

And when the water temperature in the drum 7 reaches the standard, the water is discharged into a heating pipeline.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A combined threaded smoke tube type waste heat boiler is characterized by comprising a chassis, wherein a first row of drums and a second row of drums are arranged on the chassis side by side, the number of the drums in the first row of drums is the same as that of the drums in the second row of drums, and the drums are vertically arranged;

the lower end of the boiler barrel is provided with an ash falling hopper, and a closed space is enclosed between the ash falling hopper and a tube plate at the lower end of the boiler barrel;

the lower end of the ash falling hopper is provided with a drain outlet, and a plug is arranged in the drain outlet;

a plurality of threaded smoke pipes which are vertically arranged are arranged in each boiler barrel, and the upper end and the lower end of each threaded smoke pipe respectively penetrate through the boiler barrel;

the upper end of the threaded smoke pipe in the first row of drums is communicated with a first smoke box, the lower end of the threaded smoke pipe is respectively inserted into an ash falling bucket, and the side wall of the first smoke box is provided with a smoke inlet;

the upper ends of the threaded smoke pipes in the second row of drums are respectively communicated with a second smoke box, the lower ends of the threaded smoke pipes are respectively inserted into an ash falling bucket, and the side wall of the second smoke box is provided with a smoke outlet;

the ash falling hopper below the first row of drums is respectively communicated with the ash falling hopper below the adjacent second row of drums so as to realize the transfer of flue gas between the two rows of drums.

2. The combined threaded smoke tube type exhaust heat boiler as recited in claim 1, wherein two drums in said first row of drums share a single ash hopper, and two drums in said second row of boilers share a single ash hopper.

3. The combined threaded smoke tube type waste heat boiler as claimed in claim 1, wherein the inner cavity of the threaded smoke tube in each boiler barrel forms a smoke passage, and the space between the threaded smoke tube and the inner wall of the boiler barrel forms a water storage space.

4. The combined threaded smoke tube type waste heat boiler as claimed in claim 1, further comprising an expansion water tank, wherein the expansion water tank is arranged above the boiler barrel, the expansion water tank is supported by the boiler barrel, the expansion water tank is respectively communicated with a first water collecting pipe and a second water collecting pipe, the first water collecting pipe is respectively communicated with the boiler barrels in the first row of boiler barrels through a water distribution pipe, the second water collecting pipe is respectively communicated with the boiler barrels in the second row of boiler barrels, and the upper part of the expansion water tank is communicated with the external atmosphere.

5. The combined threaded smoke tube type waste heat boiler as claimed in claim 1, wherein the base plate comprises a support plate, the lower end of the support plate is supported by a support column, the upper end of the support plate is provided with a plurality of mounting holes, the number of the mounting holes is the same as the number of the drums, and the lower end of the drum can be inserted into the mounting holes and positioned.

6. The combined threaded smoke tube type waste heat boiler as claimed in claim 1, wherein the second smoke box is provided with a soot blower at the upper part, the second smoke box is provided with a plurality of soot blowing holes at the top part, and the air outlet direction of the soot blower is opposite to the soot blowing holes.

7. The combined threaded smoke pipe type waste heat boiler as claimed in claim 4, wherein a rain cover is arranged above the expansion tank, and the rain cover is supported by the boiler barrel.