CN219735364U - Boiler tail gas treatment device - Google Patents
Boiler tail gas treatment device Download PDFInfo
- Publication number
- CN219735364U CN219735364U CN202320924657.1U CN202320924657U CN219735364U CN 219735364 U CN219735364 U CN 219735364U CN 202320924657 U CN202320924657 U CN 202320924657U CN 219735364 U CN219735364 U CN 219735364U
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- Prior art keywords
- heat exchange
- exchange box
- heat
- conducting medium
- tail gas
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- 238000004140 cleaning Methods 0.000 claims abstract description 46
- 238000009826 distribution Methods 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 39
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of tail gas treatment, and discloses a boiler tail gas treatment device which comprises a heat exchanger, a bag type dust collector and a spray tower which are connected in sequence; the heat exchanger comprises a cuboid heat exchange box, a cleaning assembly arranged in the heat exchange box, a cuboid heat conducting medium cavity and an air distribution plate; the left end face of the heat exchange box is communicated with an air inlet pipe, and the right end face of the heat exchange box is communicated with an exhaust pipe; the heat conducting medium chambers are sequentially arranged in the heat exchange box from front to back at equal intervals; a tail gas channel is formed between adjacent heat conducting medium cavities; a cleaning component is arranged between each two tail gas channels; the cleaning assembly comprises a cleaning brush and a linear driving assembly; in the heat exchanger, the cavity wall of the heat conducting medium cavity can be cleaned through the cleaning component, so that the influence of excessive dust accumulated on the cavity wall of the heat conducting medium cavity on heat exchange efficiency is avoided.
Description
Technical Field
The utility model belongs to the technical field of tail gas treatment, and particularly relates to a boiler tail gas treatment device.
Background
The boiler is an energy conversion device, the energy input to the boiler is electric energy, chemical energy generated by fuel combustion and the like, and the boiler outputs steam, high temperature water or an organic heat carrier with certain heat energy.
The hot water or steam generated in the boiler can directly provide the heat energy required by industrial production, and can also be converted into mechanical energy through a steam power device or converted into electric energy through a generator. The tail gas of the coal-fired boiler contains more heat and dust, sulfide, nitrogen oxides and other substances, and the substances are directly discharged into the atmosphere, so that the air can be polluted, and the environment is seriously polluted. In the prior art, when tail gas of a coal-fired boiler is treated, heat in the tail gas is usually recovered by a heat exchanger, then a dust removal device is used for removing dust, and then a spraying device is used for removing acid pollution gases such as sulfides, nitrogen oxides and the like.
However, in actual use, since the tail gas contains a large amount of dust, when the heat exchanger is used for recovering heat, part of dust can be adhered to or accumulated in the heat exchanger, so that not only is the cleaning difficult, but also the heat conduction is affected, and the heat exchange efficiency is reduced.
Therefore, there is a need for a boiler tail gas treatment device to solve the above-mentioned technical problems.
Disclosure of Invention
The utility model aims to overcome the prior art and provides a boiler tail gas treatment device.
In order to achieve the above purpose, the utility model is implemented according to the following technical scheme:
a boiler tail gas treatment device comprises a heat exchanger, a bag type dust collector and a spray tower which are connected in sequence; the heat exchanger comprises a cuboid heat exchange box, a cleaning assembly arranged in the heat exchange box, a cuboid heat conducting medium cavity and an air distribution plate; the left end face of the heat exchange box is communicated with an air inlet pipe, and the right end face of the heat exchange box is communicated with an exhaust pipe;
the heat conducting medium chambers are sequentially arranged in the heat exchange box from front to back at equal intervals; the foremost heat conducting medium cavity is contacted with the inner wall of the front side of the heat exchange box, and the rearmost heat conducting medium cavity is contacted with the inner wall of the rear side of the heat exchange box; a tail gas channel is formed between adjacent heat conducting medium cavities; the left lower end of each heat-conducting medium cavity is communicated with a liquid inlet pipe, and the right upper end of each heat-conducting medium cavity is communicated with a liquid outlet pipe; the end parts of the liquid inlet pipes are communicated with the liquid inlet main pipe, and the end parts of the liquid outlet pipes are communicated with the liquid outlet main pipe;
a cleaning component is arranged between each two tail gas channels; the cleaning assembly comprises a cleaning brush and a linear driving assembly; the cleaning brush is vertically arranged and comprises a brush plate and bristles, and the bristles are arranged on the front end face, the rear end face and the lower end face of the brush plate; the shape of the cleaning brush is matched with the shape of the tail gas channel; the linear driving assembly drives the cleaning brush to move left and right in the tail gas channel;
the air distribution plate is arranged at the left side of the heat conducting medium cavity and is provided with a plurality of air distribution holes; a gap A is formed at the bottom of the heat exchange box between the left end face of the heat conducting medium cavity and the air distribution plate, and a gap B is formed at the bottom of the heat exchange box between the right end face of the heat conducting medium cavity and the right inner wall of the heat exchange box; the gap A and the gap B are respectively provided with a sealing cover which can be opened and closed.
Preferably, when the brush is moved to the leftmost end, the projection of the brush falls within the gap A; when the brush is moved to the far right, the projection of the brush falls within the gap B.
The bag type dust collector and the spray tower are all devices commonly used in the technical field of tail gas treatment, and the structure and the using method of the bag type dust collector and the spray tower are clear to a person skilled in the art. The heat conducting medium cavity is filled with circulating heat conducting medium, the heat conducting medium is commonly used for a heat exchanger, and water, heat conducting oil and the like can be specifically selected. The wall of the heat conducting medium cavity is made of a material with good heat conduction, and can be specifically made of copper, aluminum, copper alloy, aluminum alloy, stainless steel and the like.
When the heat-conducting device is in actual use, tail gas enters the heat exchange box from the air inlet pipe, the tail gas enters the tail gas channel after passing through the gas distribution plate, the tail gas contacts with the cavity wall of the heat-conducting medium cavity, heat is transferred to the heat-conducting medium in the heat-conducting medium cavity through the cavity wall, and heat recovery is completed; and then discharged from the exhaust pipe and sequentially enters the bag type dust collector and the spray tower. After the brush cleaner is used for a period of time, the brush cleaner is driven to move left and right, the brush hair on the front end surface of the brush cleaner contacts with the corresponding cavity wall, the brush hair on the rear end surface of the brush cleaner contacts with the corresponding cavity wall, and the brush hair on the lower end surface of the brush cleaner contacts with the bottom surface of the corresponding heat exchange box; the cleaned dust is cleaned into the gap A or the gap B by the cleaning brush, and then the dust can be cleaned by opening the sealing cover.
Preferably, the heat exchange box comprises a left heat exchange box cover and a right heat exchange box body; the gas distribution plate is positioned in the heat exchange box body; the heat exchange box cover is connected with the heat exchange box body flange.
The heat exchange box cover can be detached by the arrangement of the position, and the air distribution plate is cleaned.
Preferably, a filter screen is arranged between the heat exchange box cover and the heat exchange box body.
The heat exchange box cover, the filter screen and the heat exchange box body are connected through the flange, dust of large particles can be intercepted by the filter screen, and the filter screen can be detached and cleaned conveniently in a flange connection mode.
Preferably, the linear driving assembly comprises two electric telescopic rods; the two electric telescopic rods are symmetrically arranged on the right end face of the heat exchange box up and down; the movable end of the electric telescopic rod stretches into the tail gas channel and is fixedly connected with the right end face of the brush plate.
The two electric telescopic rods are synchronously telescopic and drive the cleaning brush to move left and right.
Preferably, the linear driving assembly comprises a screw, a driving motor and a guide rod; the screw rod penetrates through the upper part of the brush plate and is in threaded connection with the brush plate, and the left end of the screw rod is in rotary connection with the air distribution plate; the right end of the screw rod penetrates through the right side wall of the heat exchange box and then is connected with the driving motor, and the screw rod is rotationally connected with the right side wall of the heat exchange box; the guide rod penetrates through the lower part of the brush plate, the left end of the guide rod is fixedly connected with the air distribution plate, and the right end of the guide rod is fixedly connected with the right inner wall of the heat exchange box; the driving motor rotates to drive the cleaning brush to move left and right along the screw rod and the guide rod.
The driving motor is selected in the field, and the person skilled in the art can select the model according to the actual use requirement and clearly understand the control.
The undefined components in the utility model all adopt conventional means in the field, the type and the installation mode of the undefined components can be selected according to actual use requirements by a person skilled in the art, and specific how the undefined components are installed and controlled are clearly known, and are not described in detail herein.
The utility model achieves the following beneficial effects:
the utility model has simple structure and convenient operation; in the heat exchanger, the cavity wall of the heat conducting medium cavity can be cleaned through the cleaning component, so that the influence of excessive dust accumulated on the cavity wall of the heat conducting medium cavity on heat exchange efficiency is avoided.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;
FIG. 2 is a schematic view of the heat exchanger of FIG. 1;
FIG. 3 is a cross-sectional view taken along line E-E of FIG. 2;
FIG. 4 is a right side view of FIG. 2;
FIG. 5 is a schematic structural diagram of embodiment 2 of the present utility model;
fig. 6 is a schematic view of the heat exchanger of fig. 5.
In the figure: 1. a heat exchanger; 2. a bag filter; 3. a spray tower; 4. a heat transfer medium chamber; 5. an air distribution plate; 6. an air inlet pipe; 7. an exhaust pipe; 8. a tail gas channel; 9. a liquid inlet pipe; 10. a liquid discharge pipe; 11. a liquid inlet main pipe; 12. a liquid discharge main pipe; 13. brushing a plate; 14. brushing; 15. air holes are distributed; 16. a notch A; 17. a notch B; 18. sealing cover; 19. a heat exchange box cover; 20. a heat exchange box; 21. a filter screen; 22. a screw; 23. a driving motor; 24. a guide rod; 25. an electric telescopic rod; 26. a cavity wall.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments, wherein the exemplary embodiments and descriptions of the utility model are for purposes of illustration, but are not intended to be limiting.
Example 1
As shown in fig. 1 to 4, a boiler tail gas treatment device comprises a heat exchanger 1, a bag type dust collector 2 and a spray tower 3 which are connected in sequence; the heat exchanger 1 comprises a cuboid heat exchange box, a cleaning assembly arranged in the heat exchange box, a cuboid heat conducting medium cavity 4 and an air distribution plate 5; the left end face of the heat exchange box is communicated with an air inlet pipe 6, and the right end face of the heat exchange box is communicated with an exhaust pipe 7;
the six heat conducting medium cavities 4 are sequentially arranged in the heat exchange box from front to back at equal intervals; the foremost heat conducting medium cavity is contacted with the inner wall of the front side of the heat exchange box, and the rearmost heat conducting medium cavity is contacted with the inner wall of the rear side of the heat exchange box; a tail gas channel 8 is formed between the adjacent heat conducting medium cavities 4; the lower end of the left side of each heat conducting medium cavity 4 is communicated with a liquid inlet pipe 9, and the upper end of the right side of each heat conducting medium cavity 4 is communicated with a liquid discharge pipe 10; the end parts of the liquid inlet pipes 9 are communicated with a liquid inlet main pipe 11, and the end parts of the liquid outlet pipes 10 are communicated with a liquid outlet main pipe 12;
a cleaning component is arranged between each tail gas channel 8; the cleaning assembly comprises a cleaning brush and a linear driving assembly; the cleaning brush is vertically arranged and comprises a brush plate 13 and bristles 14, and the bristles 14 are arranged on the front end face, the rear end face and the lower end face of the brush plate 13; the shape of the cleaning brush is matched with the shape of the tail gas channel 8; the linear driving assembly drives the cleaning brush to move left and right in the tail gas channel 8;
the air distribution plate 5 is arranged at the left side of the heat conducting medium cavity 4, and a plurality of air distribution holes 15 are formed in the air distribution plate 5; a gap A16 is formed at the bottom of the heat exchange box between the left end surface of the heat conducting medium cavity 4 and the air distribution plate 5, and a gap B17 is formed at the bottom of the heat exchange box between the right end surface of the heat conducting medium cavity 4 and the right inner wall of the heat exchange box; the gap A16 and the gap B17 are respectively provided with a sealing cover 18 which can be opened and closed.
When the cleaning brush moves to the leftmost end, the projection of the cleaning brush falls into the gap A16; when the brush is moved to the far right, the projection of the brush falls within the gap B17.
The heat exchange box comprises a left heat exchange box cover 19 and a right heat exchange box body 20; the air distribution plate 5 is positioned in the heat exchange box body 20; the heat exchange box cover 19 is in flange connection with the heat exchange box body 20.
A filter screen 21 is arranged between the heat exchange box cover 19 and the heat exchange box body 20.
The linear driving assembly comprises a screw 22, a driving motor 23 and a guide rod 24; the screw rod 22 penetrates through the upper part of the brush plate 13 and is in threaded connection with the brush plate 13, and the left end of the screw rod 22 is in rotary connection with the air distribution plate 5; the right end of the screw rod 22 penetrates through the right side wall of the heat exchange box and then is connected with the driving motor 23, and the screw rod 22 is rotationally connected with the right side wall of the heat exchange box; the guide rod 24 penetrates through the lower part of the brush plate 13, the left end of the guide rod 24 is fixedly connected with the air distribution plate 5, and the right end of the guide rod 24 is fixedly connected with the right inner wall of the heat exchange box; the driving motor 23 rotates to drive the cleaning brush to move left and right along the screw 22 and the guide rod 24.
When the exhaust gas treatment device is used, exhaust gas enters the heat exchanger through the air inlet pipe and sequentially enters the bag type dust collector and the spray tower after heat exchange. In the heat exchanger, the cleaning brush can be controlled to move left and right by controlling the rotation of the driving motor to clean the cavity wall 26 of the heat conducting medium cavity, so that excessive dust accumulated on the cavity wall is prevented from affecting the heat exchange efficiency.
Example 2
As shown in fig. 5 and 6, the boiler tail gas treatment device comprises a heat exchanger 1, a bag type dust collector 2 and a spray tower 3 which are connected in sequence; the heat exchanger 1 comprises a cuboid heat exchange box, a cleaning assembly arranged in the heat exchange box, a cuboid heat conducting medium cavity 4 and an air distribution plate 5; the left end face of the heat exchange box is communicated with an air inlet pipe 6, and the right end face of the heat exchange box is communicated with an exhaust pipe 7;
the six heat conducting medium cavities 4 are sequentially arranged in the heat exchange box from front to back at equal intervals; the foremost heat conducting medium cavity is contacted with the inner wall of the front side of the heat exchange box, and the rearmost heat conducting medium cavity is contacted with the inner wall of the rear side of the heat exchange box; a tail gas channel is formed between adjacent heat conducting medium cavities 4; the lower end of the left side of each heat conducting medium cavity 4 is communicated with a liquid inlet pipe 9, and the upper end of the right side of each heat conducting medium cavity 4 is communicated with a liquid discharge pipe 10; the end parts of the liquid inlet pipes 9 are communicated with a liquid inlet main pipe 11, and the end parts of the liquid outlet pipes 10 are communicated with a liquid outlet main pipe 12;
a cleaning component is arranged between each two tail gas channels; the cleaning assembly comprises a cleaning brush and a linear driving assembly; the cleaning brush is vertically arranged and comprises a brush plate 13 and bristles 14, and the bristles 14 are arranged on the front end face, the rear end face and the lower end face of the brush plate 13; the shape of the cleaning brush is matched with the shape of the tail gas channel; the linear driving assembly drives the cleaning brush to move left and right in the tail gas channel;
the air distribution plate 5 is arranged at the left side of the heat conducting medium cavity 4, and a plurality of air distribution holes 15 are formed in the air distribution plate 5; a gap A16 is formed at the bottom of the heat exchange box between the left end surface of the heat conducting medium cavity 4 and the air distribution plate 5, and a gap B17 is formed at the bottom of the heat exchange box between the right end surface of the heat conducting medium cavity 4 and the right inner wall of the heat exchange box; the gap A16 and the gap B17 are respectively provided with a sealing cover 18 which can be opened and closed.
When the cleaning brush moves to the leftmost end, the projection of the cleaning brush falls into the gap A16; when the brush is moved to the far right, the projection of the brush falls within the gap B17.
The heat exchange box comprises a left heat exchange box cover 19 and a right heat exchange box body 20; the air distribution plate 5 is positioned in the heat exchange box body 20; the heat exchange box cover 19 is in flange connection with the heat exchange box body 20.
A filter screen 21 is arranged between the heat exchange box cover 19 and the heat exchange box body 20.
The linear drive assembly comprises two electric telescopic rods 25; the two electric telescopic rods 25 are symmetrically arranged on the right end face of the heat exchange box up and down; the movable end of the electric telescopic rod 25 extends into the tail gas channel and is fixedly connected with the right end face of the brush plate 13.
The two electric telescopic rods 25 are synchronously telescopic and drive the cleaning brush to move left and right.
When the exhaust gas treatment device is used, exhaust gas enters the heat exchanger through the air inlet pipe and sequentially enters the bag type dust collector and the spray tower after heat exchange. In the heat exchanger, the sweeping brush can be controlled to move left and right by controlling the electric telescopic rod to stretch out and draw back, so that the cavity wall of the heat conducting medium cavity is cleaned, and the heat exchange efficiency is prevented from being influenced by excessive dust accumulated on the cavity wall.
The technical scheme of the utility model is not limited to the specific embodiment, and all technical modifications made according to the technical scheme of the utility model fall within the protection scope of the utility model.
Claims (5)
1. A boiler tail gas treatment device comprises a heat exchanger, a bag type dust collector and a spray tower which are connected in sequence; the method is characterized in that: the heat exchanger comprises a cuboid heat exchange box, a cleaning assembly arranged in the heat exchange box, a cuboid heat conducting medium cavity and an air distribution plate; the left end face of the heat exchange box is communicated with an air inlet pipe, and the right end face of the heat exchange box is communicated with an exhaust pipe;
the heat conducting medium chambers are sequentially arranged in the heat exchange box from front to back at equal intervals; the foremost heat conducting medium cavity is contacted with the inner wall of the front side of the heat exchange box, and the rearmost heat conducting medium cavity is contacted with the inner wall of the rear side of the heat exchange box; a tail gas channel is formed between adjacent heat conducting medium cavities; the left lower end of each heat-conducting medium cavity is communicated with a liquid inlet pipe, and the right upper end of each heat-conducting medium cavity is communicated with a liquid outlet pipe; the end parts of the liquid inlet pipes are communicated with the liquid inlet main pipe, and the end parts of the liquid outlet pipes are communicated with the liquid outlet main pipe;
a cleaning component is arranged between each two tail gas channels; the cleaning assembly comprises a cleaning brush and a linear driving assembly; the cleaning brush is vertically arranged and comprises a brush plate and bristles, and the bristles are arranged on the front end face, the rear end face and the lower end face of the brush plate; the shape of the cleaning brush is matched with the shape of the tail gas channel; the linear driving assembly drives the cleaning brush to move left and right in the tail gas channel;
the air distribution plate is arranged at the left side of the heat conducting medium cavity and is provided with a plurality of air distribution holes; a gap A is formed at the bottom of the heat exchange box between the left end face of the heat conducting medium cavity and the air distribution plate, and a gap B is formed at the bottom of the heat exchange box between the right end face of the heat conducting medium cavity and the right inner wall of the heat exchange box; the gap A and the gap B are respectively provided with a sealing cover which can be opened and closed.
2. A boiler tail gas treatment device according to claim 1, characterized in that: the heat exchange box comprises a left heat exchange box cover and a right heat exchange box body; the gas distribution plate is positioned in the heat exchange box body; the heat exchange box cover is connected with the heat exchange box body flange.
3. A boiler tail gas treatment device according to claim 2, characterized in that: a filter screen is arranged between the heat exchange box cover and the heat exchange box body.
4. A boiler tail gas treatment device according to claim 1, characterized in that: the linear driving assembly comprises two electric telescopic rods; the two electric telescopic rods are symmetrically arranged on the right end face of the heat exchange box up and down; the movable end of the electric telescopic rod stretches into the tail gas channel and is fixedly connected with the right end face of the brush plate.
5. A boiler tail gas treatment device according to claim 1, characterized in that: the linear driving assembly comprises a screw, a driving motor and a guide rod; the screw rod penetrates through the upper part of the brush plate and is in threaded connection with the brush plate, and the left end of the screw rod is in rotary connection with the air distribution plate; the right end of the screw rod penetrates through the right side wall of the heat exchange box and then is connected with the driving motor, and the screw rod is rotationally connected with the right side wall of the heat exchange box; the guide rod penetrates through the lower part of the brush plate, the left end of the guide rod is fixedly connected with the air distribution plate, and the right end of the guide rod is fixedly connected with the right inner wall of the heat exchange box; the driving motor rotates to drive the cleaning brush to move left and right along the screw rod and the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320924657.1U CN219735364U (en) | 2023-04-23 | 2023-04-23 | Boiler tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320924657.1U CN219735364U (en) | 2023-04-23 | 2023-04-23 | Boiler tail gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219735364U true CN219735364U (en) | 2023-09-22 |
Family
ID=88029535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320924657.1U Active CN219735364U (en) | 2023-04-23 | 2023-04-23 | Boiler tail gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219735364U (en) |
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2023
- 2023-04-23 CN CN202320924657.1U patent/CN219735364U/en active Active
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