CN210772133U - Wear-proof circulating fluidized bed boiler - Google Patents
Wear-proof circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN210772133U CN210772133U CN201921224187.8U CN201921224187U CN210772133U CN 210772133 U CN210772133 U CN 210772133U CN 201921224187 U CN201921224187 U CN 201921224187U CN 210772133 U CN210772133 U CN 210772133U
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- pipeline
- hearth
- bin
- water wall
- fan
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000007787 solid Substances 0.000 claims abstract description 18
- 235000019738 Limestone Nutrition 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 claims abstract description 15
- 239000006028 limestone Substances 0.000 claims abstract description 15
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 16
- 238000006477 desulfuration reaction Methods 0.000 claims description 15
- 230000023556 desulfurization Effects 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses an anti-wear circulating fluidized bed boiler, which comprises a hearth, the top of the hearth is provided with a steam pocket, the left side of the bottom of the hearth is connected with a condenser, the left side of the hearth is provided with two openings which are respectively connected with a limestone feeding bin pipeline and a fuel bin pipeline, the limestone feeding bin pipeline and the fuel bin pipeline are respectively communicated with a limestone feeding bin and a fuel bin, the right side of the hearth is connected with a cyclone separator, the cyclone separator is respectively connected with a gas-solid heat exchange bin, a U-shaped connecting pipeline and a high-pressure fluidized fan, the structure is more compact and stable, a wear-resistant heat preservation device is adopted, a certain space for thermal expansion and cold contraction is provided, the disassembly and maintenance after the disassembly and the maintenance are convenient, the inner wall of a cold wall pipe is provided with arc-shaped convex strips extending along the length direction of the water wall pipe, on one hand, the, the integral heat exchange effect of the water wall tube is improved.
Description
Technical Field
The utility model relates to the technical field of boilers, specifically a circulating fluidized bed boiler of abrasionproof.
Background
The water-cooled pipe wall is arranged at the inner side of the boiler furnace and is close to the inner wall of the combustion chamber wall, the water-cooled pipe wall and the water-cooled pipe wall are arranged in parallel, the upper end of the water-cooled pipe wall is connected with the steam drum or the upper header, and the lower end of the water-cooled pipe wall is connected with the lower header. The water-cooled wall is used for absorbing the radiation heat of high-temperature flame or smoke in the hearth, generating steam or hot water in the tube, reducing the temperature of the furnace wall and protecting the furnace wall. The boiler has high temperature in the boiler furnace, coarse material particles and high air speed, the water-cooled pipe wall is easy to wear, and the problem of ash deposition in the furnace of the circulating fluidized bed boiler is serious, so the problem of wear of the water-cooled pipe wall is particularly obvious in the circulating fluidized bed boiler, the pipe wall is eroded and worn to generate a concave trough pit, pipe explosion accidents are easy to cause, the long-period safe operation of the boiler is influenced, and potential safety hazards exist. The effect of better abrasion improvement cannot be achieved, and in conclusion, how to overcome the problem that the abrasion of the water wall tube of the existing circulating fluidized bed boiler is serious is a technical problem to be solved urgently in the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome current defect, a circulating fluidized bed boiler of abrasionproof is provided, the structure is compacter stable, and adopt wear-resisting heat preservation device, certain expend with heat and contract with cold space has been given, dismantlement after being convenient for is maintained, be equipped with the protruding strip of arc along water wall pipe length direction extension on the inner wall of water wall pipe, the protruding strip of a plurality of arcs is along the equidistant distribution of circumference of water wall pipe inner wall, the surface area of water wall pipe inner wall has been increased on the one hand in the setting of the protruding strip of this a plurality of arcs, thereby the heat transfer coefficient of flowing medium in the water wall pipe and water wall pipe inner wall has been improved, on the other hand has increased the torrent intensity of flowing medium in the water wall pipe, the holistic heat transfer effect of water wall pipe has been improved, can effectively.
In order to achieve the above object, the utility model provides a following technical scheme: an anti-abrasion circulating fluidized bed boiler comprises a hearth, a steam pocket is arranged at the top of the hearth, a condenser is connected to the left side of the bottom of the hearth, two openings are arranged at the left side of the hearth, the openings are respectively connected with a limestone feeding bin pipeline and a fuel bin pipeline, the limestone feeding bin pipeline and the fuel bin pipeline are respectively communicated with a limestone feeding bin and a fuel bin, a cyclone separator is connected to the right side of the hearth, the cyclone separator is respectively connected with a gas-solid heat exchange bin, a U-shaped connecting pipeline and a high-pressure fluidized fan, a feed back valve is arranged at the joint of the U-shaped connecting pipeline, the U-shaped connecting pipeline is communicated with the hearth through a connecting pipe, a bin port at the bottom of the gas-solid heat exchange bin is arranged at the bottom of the gas-solid heat exchange bin, a desulfurization dust remover is connected to the right side of the gas-solid heat exchange bin, a, the right side of the desulfurization dust remover and the joint of the air inducing pipeline of the desulfurization dust remover are provided with high-density screens, and the induced draft fan is communicated to the chimney.
As an optimal technical scheme of the utility model, from top to bottom be equipped with over heater, re-heater, economizer and air heater in proper order in the gas-solid heat transfer storehouse, and condenser, high pressure fluidization fan, second fan, air heater, first fan, desulfurization dust remover, draught fan, economizer, re-heater, over heater, cyclone's input electricity connection external power source's output.
As the utility model discloses a preferred technical scheme, furnace includes hexagon external fixation frame, both ends are equipped with the fastening spiral shell board respectively about hexagon external fixation frame, and the fastening spiral shell board passes through bolt-up to be connected, and both ends are connected with the support frame about hexagon external fixation frame is inside, and four buffering springs of even fixedly connected with all around, and be connected with the water-cooling wall between support frame and the buffering yellow, and the water-cooling wall periphery from interior to exterior is equipped with heat preservation and wearing layer in proper order.
As the utility model discloses an optimal technical scheme, the inside a plurality of water-cooling wall pipes that evenly are equipped with of water-cooling wall, and the inside a plurality of protruding strips of evenly having arranged of water-cooling wall pipe, water-cooling wall pipe are equipped with water-cooling wall pipe surface, and water-cooling wall pipe surface is equipped with the protruding strip of spiral, and irregularly arranged a plurality of protruding pieces between the protruding strip of spiral.
Compared with the prior art, the beneficial effects of the utility model are that: the structure is compacter stable, and adopt wear-resisting heat preservation device, certain expend with heat and contract with cold space has been given, the dismantlement after being convenient for is maintained, be equipped with the protruding strip of arc that extends along water wall tube length direction on the inner wall of water wall tube, a plurality of protruding strips of arc are along the equidistant distribution of circumference of water wall tube inner wall, the surface area of water wall tube inner wall has been increased on the one hand in the setting of these a plurality of protruding strips of arc, thereby the heat transfer coefficient of flowing medium and water wall tube inner wall in the water wall tube has been improved, on the other hand has increased the torrent intensity of flowing medium in the water wall tube, the holistic heat transfer effect of water wall tube has been.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the sectional structure of the furnace chamber of the present invention;
FIG. 3 is a schematic view of the cross-sectional structure of the water wall tube of the present invention;
fig. 4 is the structural schematic diagram of the novel main view of the water wall tube of the present invention.
In the figure: 1 limestone feeding bin, 2 limestone feeding bin pipeline, 3 fuel bin, 4 steam pocket, 5 hearth, 6 fuel bin pipeline, 7 condenser, 8 condenser pipeline, 9 gas-solid heat exchange bin bottom bin mouth, 10 high pressure fluidizing fan, 11 second fan connecting pipeline, 12 first fan connecting pipeline, 13 second fan, 14 air preheater, 15 first fan, 16 desulfurizing dust remover, 17 high density screen, 18 induced draft pipeline, 19 induced draft fan, 20 chimney, 21 waste discharge bin, 22 discharge valve, 23 economizer, 24 reheater, 25 superheater, 26 gas-solid heat exchange bin, 27 cyclone separator, 28U-shaped connecting pipe, 51 support frame, 52 fastening screw plate, 53 hexagonal external fixing frame, 54 bolt, 55 water wall, 56 heat preservation layer, 57 wear-resisting layer, 551 raised strip, 552 raised block, 553 spiral raised strip, 554 water wall tube external surface and 555 water wall tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an anti-abrasion circulating fluidized bed boiler comprises a hearth 5, wherein the hearth 5 comprises a hexagonal external fixing frame 53, the left end and the right end of the hexagonal external fixing frame 53 are respectively provided with a fastening screw plate 52, the fastening screw plates 52 are fastened and connected through bolts 54, the upper end and the lower end of the interior of the hexagonal external fixing frame 53 are connected with a support frame 51, four buffer springs are uniformly and fixedly connected around the hexagonal external fixing frame 53, a water wall 55 is connected between the support frame 51 and the buffer springs, a heat insulation layer 56 and a wear-resistant layer 57 are sequentially arranged on the periphery of the water wall 55 from inside to outside, a plurality of water wall tubes 555 are uniformly arranged in the water wall 55, a plurality of convex strips 551 are uniformly arranged in the water wall tubes 555, the water wall tubes 555 are provided with a water wall tube outer surface 554, spiral convex strips 553 are arranged on the water wall tube outer surface 554, a plurality of convex blocks 552 are irregularly arranged between the, a certain space for expansion with heat and contraction with cold is provided, the subsequent disassembly and maintenance are convenient, a steam pocket 4 is arranged at the top of a hearth 5, the left side of the bottom of the hearth 5 is connected with a condenser 7, the left side of the hearth 5 is provided with two openings which are respectively connected with a limestone feeding bin pipeline 2 and a fuel bin pipeline 6, the limestone feeding bin pipeline 2 and the fuel bin pipeline 6 are respectively communicated with a limestone feeding bin 1 and a fuel bin 3, the right side of the hearth 5 is connected with a cyclone separator 27, the cyclone separator 27 is respectively connected with a gas-solid heat exchange bin 26, a U-shaped connecting pipeline 28 and a high-pressure fluidized fan 10, a feed back valve is arranged at the joint of the U-shaped connecting pipeline 28, the U-shaped connecting pipeline 28 is communicated with the hearth 5 through a connecting pipe, a gas-solid heat exchange bin bottom bin port 9 is arranged at the bottom of the gas-solid heat exchange bin 26, a desulfurization dust remover 16 is connected at the right side of the gas-, the desulfurization dust remover 16 is connected with an induced draft fan 19 through an induced draft pipeline 18, a high-density screen 17 is arranged on the right side of the desulfurization dust remover 16 and at the joint of the right side of the desulfurization dust remover 16 and the induced draft pipeline 18, the induced draft fan 19 is communicated with a chimney 20, a superheater 25, a reheater 24, an economizer 23 and an air preheater 14 are sequentially arranged in a gas-solid heat exchange bin 26 from top to bottom, the input end of a condenser 7, a high-pressure fluidized fan 10, a second fan 13, the air preheater 14, a first fan 15, the desulfurization dust remover 16, the induced draft fan 19, the economizer 23, the reheater 24, the superheater 25 and a cyclone separator 27 is electrically connected with the output end of an external power supply, the surface area of the inner wall of the water wall tube is increased, the turbulence intensity of a flowing medium in the water wall tube is.
When in use: fuel and limestone get into furnace 5 through the connecting tube and burn, then separate through cyclone 27, separate via gas-solid heat transfer storehouse 26 at last, produce heat through high pressure fluidized air blower 10, waste gas attracts through draught fan 19 to discharge through chimney 20 simultaneously, furnace's wearing and tearing are great during, at this moment support frame 51 can play the effect of buffering with the buffering yellow, certain expend with heat and contract with cold has been played simultaneously, set up heat preservation 56 and wearing layer 57 once more, the structure is compacter, protruding strip 551's setting makes the surface area that has increased the water wall tube inner wall simultaneously, the surface is provided with protruding strip 553 of spiral and protruding piece 552 simultaneously, the friction has been reduced, the holistic heat transfer effect of water wall tube has been improved.
The utility model discloses the structure is compacter stable, and adopt wear-resisting heat preservation device, certain expend with heat and contract with cold space has been given, the dismantlement after being convenient for is maintained, be equipped with the protruding strip of arc that extends along water wall pipe length direction on the inner wall of water wall pipe, a plurality of protruding strips of arc are along the equidistant distribution of circumference of water wall pipe inner wall, the surface area of water wall pipe inner wall has been increased on the one hand in the setting of this a plurality of protruding strips of arc, thereby the heat transfer coefficient of flowing medium and water wall pipe inner wall in the water wall pipe has been improved, on the other hand has increased the torrent intensity of flowing medium in the water wall pipe, the holistic heat transfer effect of water wall pipe has.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A circulating fluidized bed boiler that abrasionproof, includes furnace (5), its characterized in that: the device is characterized in that a steam pocket (4) is arranged at the top of the hearth (5), the left side of the bottom of the hearth (5) is connected with a condenser (7), the left side of the hearth (5) is provided with two openings which are respectively connected with a limestone feeding bin pipeline (2) and a fuel bin pipeline (6), the limestone feeding bin pipeline (2) and the fuel bin pipeline (6) are respectively communicated with a limestone feeding bin (1) and a fuel bin (3), the right side of the hearth (5) is connected with a cyclone separator (27), the cyclone separator (27) is respectively connected with a gas-solid heat exchange bin (26), a U-shaped connecting pipeline (28) and a high-pressure fluidized fan (10), a material return valve is arranged at the joint of the U-shaped connecting pipeline (28), the U-shaped connecting pipeline (28) is communicated with the hearth (5) through a connecting pipe, a gas-solid heat exchange bottom bin opening (9) is arranged at the bottom of the gas-solid heat exchange bin, the high-density screen (17) is arranged on the right side of the desulfurization dust remover (16) and the joint of the right side of the desulfurization dust remover (16) and an air guide pipeline (18), the desulfurization dust remover (16) is connected with an induced draft fan (19) through the air guide pipeline (18), the high-density screen (17) is arranged on the right side of the desulfurization dust remover (16) and the joint of the right side of the desulfurization dust remover and the air guide pipeline (18), the induced draft fan (19) is communicated with a chimney (20), the hearth (5) comprises a hexagonal external fixing frame (53), fastening screw plates (52) are respectively arranged at the left end and the right end of the hexagonal external fixing frame (53), the fastening screw plates (52) are fastened and connected through bolts (54), the upper end and the lower end inside the hexagonal external fixing frame (53) are connected with supporting frames (51), four buffering springs are uniformly and fixedly connected around, and a water cooling, and the periphery of the water wall (55) is sequentially provided with a heat preservation layer (56) and a wear-resistant layer (57) from inside to outside, the inside of the water wall (55) is uniformly provided with a plurality of water wall tubes (555), a plurality of raised strips (551) are uniformly arranged inside the water wall tubes (555), the water wall tubes (555) are provided with the outer surface (554) of the water wall tubes, the outer surface (554) of the water wall tubes is provided with spiral raised strips (553), and a plurality of raised blocks (552) are irregularly arranged between the spiral raised strips (553).
2. The circulating fluidized bed boiler of claim 1, wherein: the gas-solid heat exchange device is characterized in that a superheater (25), a reheater (24), an economizer (23) and an air preheater (14) are sequentially arranged in the gas-solid heat exchange bin (26) from top to bottom, and the input ends of the condenser (7), the high-pressure fluidized fan (10), the second fan (13), the air preheater (14), the first fan (15), the desulfurization dust remover (16), the draught fan (19), the economizer (23), the reheater (24), the superheater (25) and the cyclone separator (27) are electrically connected with the output end of an external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921224187.8U CN210772133U (en) | 2019-07-31 | 2019-07-31 | Wear-proof circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921224187.8U CN210772133U (en) | 2019-07-31 | 2019-07-31 | Wear-proof circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210772133U true CN210772133U (en) | 2020-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921224187.8U Active CN210772133U (en) | 2019-07-31 | 2019-07-31 | Wear-proof circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210772133U (en) |
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2019
- 2019-07-31 CN CN201921224187.8U patent/CN210772133U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Anti wear circulating fluidized bed boiler Effective date of registration: 20211230 Granted publication date: 20200616 Pledgee: Zhongyuan Bank Co.,Ltd. Zhumadian Branch Pledgor: HENAN YUYUAN BOILER MACHINERY CO.,LTD. Registration number: Y2021980017222 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230131 Granted publication date: 20200616 Pledgee: Zhongyuan Bank Co.,Ltd. Zhumadian Branch Pledgor: HENAN YUYUAN BOILER MACHINERY CO.,LTD. Registration number: Y2021980017222 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An anti-wear circulating fluidized bed boiler Effective date of registration: 20230202 Granted publication date: 20200616 Pledgee: Zhongyuan Bank Co.,Ltd. Zhumadian Branch Pledgor: HENAN YUYUAN BOILER MACHINERY CO.,LTD. Registration number: Y2023980031961 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200616 Pledgee: Zhongyuan Bank Co.,Ltd. Zhumadian Branch Pledgor: HENAN YUYUAN BOILER MACHINERY CO.,LTD. Registration number: Y2023980031961 |