CN202501454U - Oriented hood air distribution board for low-speed fluidized bed boiler - Google Patents
Oriented hood air distribution board for low-speed fluidized bed boiler Download PDFInfo
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- CN202501454U CN202501454U CN 201220063038 CN201220063038U CN202501454U CN 202501454 U CN202501454 U CN 202501454U CN 201220063038 CN201220063038 CN 201220063038 CN 201220063038 U CN201220063038 U CN 201220063038U CN 202501454 U CN202501454 U CN 202501454U
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- fluidized bed
- water cooling
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Abstract
The utility model provides an oriented hood air distribution board for a low-speed fluidized bed boiler. Whether air distribution design is successful or not directly concerns to whether bed material fluidization of the circulating fluidized bed boiler is good or not, whether combustion air distribution in a bed is uniform or not, and whether the design of a combustion system is successful or not. The oriented hood air distribution board for the low-speed fluidized bed boiler comprises a flat seam type oriented hood (1), a water cooling supporting pipe (2), and a water cooling system (3); the flat seam type oriented hood is welded between water cooling pipe plates (4); water cooling supporting pipes of the water cooling system are supported below the oriented hood air distribution board and the water cooling pipe plates; and the water cooling system is connected with the water cooling supporting pipes. The oriented hood air distribution board provided by the utility model is used for a bed surface with a large cross section of a low-speed fluidized bed.
Description
Technical field
the utility model relates to the air-distribution device that uses in a kind of circulates at low fluidized-bed combustion boiler, is specifically related to a kind of wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler.
Background technology
Whether
cloth wind design success or not is directly connected to the bed materials flowization of CFBB good, and whether bed internal combustion air distribution the success or failure of all even combustion system design.
air distribution plate fluidizing agent and solid particle better mixing, thus good fluidized state formed, guaranteed that fluidized bed combustion is stable.This cap structure can effectively prevent wearing and tearing, overcomes material problem such as leakage and deslagging difficulty down, and makes simply, adopts unique helicitic texture, is convenient to installation and maintenance, has bigger resistance scope of design.Successfully solve the not ideal enough and bigger problems such as wearing and tearing of the easy generation of mushroom-shaped blast cap of present column blast cap fluidization quality, in engineering, obtained extensive use.
have multiple for the air distribution plate of low speed circulating fluidized bed.Can be water-cooling structure, also can be heat insulating construction, and present technique adopts independent water-cooling system, self supporting construction with respect to other modes; Simple in structure, flexible; Result of use is good, and the design performance of whole air distribution plate is superior, can effectively guarantee the integral combustion efficient of boiler.
Summary of the invention
The purpose of
the utility model provides a kind of wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler that can make fluidizing agent and solid particle better mixing.
Above-mentioned purpose realizes through following technical scheme:
a kind of wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler; Its composition comprises: dull and stereotyped clearance type wind cap, water-cooled stay pipe, water cooling system; Described dull and stereotyped clearance type wind cap is welded between the water-cooled tube sheet; The water-cooled stay pipe of described water cooling system be supported on described dull and stereotyped clearance type wind cap and described water-cooled tube sheet below, described water cooling system connects described water-cooled tube sheet.
described wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler has band steel on the described water-cooled tube sheet, and described dull and stereotyped clearance type wind cap is welded on the described band steel.
described wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler, described water-cooled tube sheet is made up of one group of water cooling tube, in the described water cooling tube medium is housed, and described medium is the mixture of water or water and steam.
described wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler; Described water cooling system comprises water-cooled distributor; Described water-cooled distributor is supported by described water-cooled stay pipe, and described water-cooled stay pipe connects the electroheat pair that water-circulating pump group, electric check valve, the electroheat pair that has thermometer, the Pressure gauge that has stop valve, the heat exchanger of Pressure gauge group, flowmeter group, stop valve, two-way parallel connection, the Pressure gauge and second that has an electric check valve have thermometer in order.
described wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler; Described Pressure gauge group comprises electric check valve, and described electric check valve connects Pressure gauge through pressure switch, and described flowmeter group comprises flow-through orifice; Described flow-through orifice connection traffic speed changer; Described flow speed changer connection traffic table, described water-circulating pump group comprises check-valves, described check-valves connects and has manometric stop valve; Described manometric stop valve connection water-circulating pump, the described water-circulating pump connection stop valve of having.
Beneficial effect:
1. the utility model make fluidizing agent and solid particle better mixing; Thereby form good fluidized state, guaranteed that fluidized bed combustion is stable, bed surface is big when well having solved the big capacity of low speed circulating fluidized bed; The fluidisation uneven phenomenon; This air distribution plate has simple in structure, manufacturing, easy for installation, the characteristics that the underload adaptive capacity is strong.
the utility model flows to permutation and combination counterclockwise through dull and stereotyped clearance type wind cap; Make fluid bed cloth wind even; The flow trace of rationalization's material again; So that form the airflow field of a rotation in the fluid bed bottom, and then form annular bed material running orbit, favourable deslagging and a Transport Bed material.
3. the water-cooled distributor of the utility model can make fluidizing agent and solid particle better mixing; Thereby form good fluidized state; Guaranteed that fluidized bed combustion is stable, bed surface is big when well having solved the big capacity of low speed circulating fluidized bed, the fluidisation uneven phenomenon.
4. the utlity model has simple in structure, manufacturing, easy for installation, and the characteristics that the underload adaptive capacity is strong have realized fine particle low speed fluidisation and have rationally got rid of large granular materials.
the utility model deft design, water-cooling system adopt self water-cooled support, are superior to traditional stainless steel ventilation girder construction.A large amount of wind caps, water-cooled bed surface, water-cooled support, water cooling system etc. constitute an air distribution plate system.
The utility model has guaranteed that fluid bed cloth wind is even, has realized the flow trace of rationalization's material, has solved the uniformity of cloth wind, and blast cap outlet wind speed is reasonable, and then has guaranteed that certain air distribution plate resistance reduction is not less than 30% of a pressure drop
7. the utility model air distribution plate cooperate independently water cooling system, simple, the control easily flexibly of this water cooling system; The air distribution plate fluidizing agent is better with mixing of solid particle, thereby has formed good fluidized state, has guaranteed the stable of fluidized bed combustion.
8. the utility model can effectively prevent wearing and tearing, overcome material problem such as leakage and deslagging difficulty down, and make simply, are convenient to installation and maintenance, have bigger resistance scope of design; Successfully solve the not ideal enough and bigger problems such as wearing and tearing of the easy generation of mushroom-shaped blast cap of present column blast cap fluidization quality, in engineering, obtained extensive use.
the utility model adopts dull and stereotyped clearance type wind cap, and the employing Welding Structure is convenient to installation and maintenance, has bigger resistance scope of design, can effectively prevent wearing and tearing, overcomes bed material problem such as leakage and deslagging difficulty down.
the utility model reaches the purpose of the burner hearth bed being expected even fluidisation and directed flow, thereby promotes burning of coal, the discharging of limestone desulfurization and lime-ash through recirculated water cooling and using directed mobile blast cap technology.
the utility model air distribution plate cooperates independently water cooling system, simple, the control easily flexibly of system; Air distribution plate itself adopts wind-distributing pipe plate self water-cooled to support, and this kind supporting construction can guarantee that air distribution plate is indeformable under the condition of high temperature, safety, reliable.
The utility model is used for the heavy in section bed surface of low speed circulating fluidized bed, adopts this air distribution plate cloth wind even, and fluidisation property is good, reaches good fluidization quality and air distribution plate resistance;
13. the utility model structures are ingenious simple, and that can effectively realize technology will guarantee that adaptability is strong, wide adaptability; Have good substance reaction, heat transfer, mass-transfer performance, improve boiler efficiency.
the utility model can effectively utilize colm and industrial waste fuel such as gas-making cinder, petroleum coke, and its environmental protection and energy-saving effect are remarkable.
Description of drawings:
accompanying drawing 1 is the structural representation of this product.
accompanying drawing 2 is A – A cutaway views of Fig. 1.
accompanying drawing 3 is fragmentary detail view of Fig. 1.
accompanying drawing 4 is fragmentary detail view of Fig. 2.
accompanying drawing 5 is water-cooling system overall diagram.
The specific embodiment:
Embodiment 1:
a kind of wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler; Its composition comprises: dull and stereotyped clearance type wind cap 1, water-cooled stay pipe 2, water cooling system 3; Described dull and stereotyped clearance type wind cap is welded between the water-cooled tube sheet 4 of air distribution plate; Described water-cooled stay pipe be supported on described dull and stereotyped clearance type wind cap and described air distribution plate the water-cooled tube sheet below, described water cooling system connects the water-cooled tube sheet of described air distribution plate.
Embodiment 2:
Embodiment 3:
Embodiment 4:
Embodiment 5:
Embodiment 6:
[0032] embodiment 7:
The described wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler of
the foregoing description; Air distribution plate cooperates independently water cooling system; The power pressure head of this water system is provided through two water-circulating pumps arranged side by side; Instrument valves such as stop valve, check-valves, Pressure gauge, thermometer, flowmeter, flow transmitter, pressure switch are arranged on the pipeline, through flow, temperature, the pressure parameter of recirculated water in the control system, control the temperature of cooling air distribution plate tube sheet in the running; Exchange away the heat that the cooling air distribution plate brings through heat exchanger then.
[0033] embodiment 8:
The described wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler of
the foregoing description; The structural design that relates to air distribution plate; This air distribution plate mainly is made up of blast cap, water cooling tube, water-cooled stay pipe and water cooling system, and described blast cap is fixed on the water cooling tube, and water cooling tube is placed on the water cooled holder; Independently water cooling system is adopted in the cooling of air distribution plate, contains dull and stereotyped clearance type wind cap, air distribution plate water-cooled tube sheet, water-cooled stay pipe, water cooling system.
flow to permutation and combination counterclockwise through dull and stereotyped clearance type wind cap; Make fluid bed cloth wind even; The flow trace of rationalization's material again; So that form the airflow field of a rotation in the fluid bed bottom, and then form annular bed material running orbit, favourable deslagging and a Transport Bed material.
dull and stereotyped clearance type wind cap is to be welded to connect between air distribution plate water-cooled tube sheet, and dull and stereotyped clearance type wind cap is welded on the air distribution plate water-cooled tube sheet band steel.The water-cooled stay pipe is supported under the air distribution plate water-cooled tube sheet, plays the effect of supports cloth aerofoil water-cooled tube sheet.
said water cooling system, water cooling system links to each other with air distribution plate water-cooled tube sheet water side, is responsible for cooling air distribution plate water-cooled tube sheet, and its working media is the mixture of water or water and steam.
are provided with a hundreds of big blast cap of dull and stereotyped clearance type on air distribution plate; The direction towards according to the rules of blast cap is installed; Bed flow track then needs hundreds of blast caps by flowing to permutation and combination counterclockwise; So that form the airflow field of a rotation in the fluid bed bottom, and then form annular bed material running orbit, favourable deslagging and a Transport Bed material.
Embodiment 9:
The described wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler of
the foregoing description, independently water-cooling system connects the water cooling tube of water-cooled distributor, makes it become a controlled water-cooling system, guarantees that whole air distribution plate is safe and reliable.
Claims (5)
1. wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler; Its composition comprises: dull and stereotyped clearance type wind cap, water-cooled stay pipe, water cooling system; It is characterized in that: described dull and stereotyped clearance type wind cap is welded between the water-cooled tube sheet; The water-cooled stay pipe of described water cooling system be supported on described dull and stereotyped clearance type wind cap and described water-cooled tube sheet below, described water cooling system connects described water-cooled tube sheet.
2. the wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler according to claim 1 is characterized in that: have band steel on the described water-cooled tube sheet, described dull and stereotyped clearance type wind cap is welded on the described band steel.
3. the wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler according to claim 1 and 2; It is characterized in that: described water-cooled tube sheet is made up of one group of water cooling tube; In the described water cooling tube medium is housed, described medium is the mixture of water or water and steam.
4. the wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler according to claim 1 and 2; It is characterized in that: described water cooling system comprises water-cooled distributor; Described water-cooled distributor is supported by described water-cooled stay pipe, and described water-cooled stay pipe connects the electroheat pair that water-circulating pump group, electric check valve, the electroheat pair that has thermometer, the Pressure gauge that has stop valve, the heat exchanger of Pressure gauge group, flowmeter group, stop valve, two-way parallel connection, the Pressure gauge and second that has an electric check valve have thermometer in order.
5. the wind cap air distribution plate that is used for the low speed circulating fluidized bed boiler according to claim 4; It is characterized in that: described Pressure gauge group comprises electric check valve, and described electric check valve connects Pressure gauge through pressure switch, and described flowmeter group comprises flow-through orifice; Described flow-through orifice connection traffic speed changer; Described flow speed changer connection traffic table, described water-circulating pump group comprises check-valves, described check-valves connects and has manometric stop valve; Described manometric stop valve connection water-circulating pump, the described water-circulating pump connection stop valve of having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220063038 CN202501454U (en) | 2012-02-26 | 2012-02-26 | Oriented hood air distribution board for low-speed fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220063038 CN202501454U (en) | 2012-02-26 | 2012-02-26 | Oriented hood air distribution board for low-speed fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501454U true CN202501454U (en) | 2012-10-24 |
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ID=47038067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220063038 Expired - Fee Related CN202501454U (en) | 2012-02-26 | 2012-02-26 | Oriented hood air distribution board for low-speed fluidized bed boiler |
Country Status (1)
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| CN (1) | CN202501454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563630A (en) * | 2012-02-26 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | Air distribution plate for directional wind cap used for low-speed fluidized bed boiler |
-
2012
- 2012-02-26 CN CN 201220063038 patent/CN202501454U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563630A (en) * | 2012-02-26 | 2012-07-11 | 哈尔滨锅炉厂有限责任公司 | Air distribution plate for directional wind cap used for low-speed fluidized bed boiler |
| CN102563630B (en) * | 2012-02-26 | 2016-03-16 | 哈尔滨锅炉厂有限责任公司 | For the wind cap air distribution plate of low speed circulating fluidized bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20160226 |