CN202074512U - Biomass circulating fluidized bed boiler - Google Patents
Biomass circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN202074512U CN202074512U CN2011201212466U CN201120121246U CN202074512U CN 202074512 U CN202074512 U CN 202074512U CN 2011201212466 U CN2011201212466 U CN 2011201212466U CN 201120121246 U CN201120121246 U CN 201120121246U CN 202074512 U CN202074512 U CN 202074512U
- Authority
- CN
- China
- Prior art keywords
- pipe
- gripper shoe
- bed boiler
- fluid bed
- biomass circulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The utility model discloses a biomass circulating fluidized bed boiler. An upper header at the upper end of a pipe component of the biomass circulating fluidized bed boiler is communicated with a shell through an outlet pipe; a lower header at the lower end of the pipe component is communicated with the shell through a down pipe; support plates are arranged at the left end and the right end of the pipe component respectively; and the space between the left support plate and the right support plate which are opposite serves as a flue gas channel. Pipes can be isolated outside the flue gas channel, so that elbows of the pipes are prevented from being scoured by particles in flue gas and then abraded. Water is vaporized into steam after the 'zigzag' pipes are heated, the steam rises along the 'zigzag' pipes, and the steam and water flow can be separated effectively and cannot generate bubbles or resonate when passing through the elbows. The heated area of the pipes is maximized, the spacing between each two pipes is increased as far as possible on the premise of meeting the requirements of heat calculation of the heated area, the problems of soot formation, bridging and the like can be improved, and the heat absorption efficiency of the pipes is increased.
Description
Technical field
The utility model belongs to field of boilers, specifically relates to a kind of biomass circulating fluid bed boiler that becomes steam after the water in the living beings flue gas heating boiler that utilizes.
Background technology
At present, existing CFBB, owing to itself belong to low-pressure equipment, generating set is not with in its inside, thereby does not have superheater.But,, often designed biomass circulating fluid bed boiler in order to increase heating surface area in order to save the energy.The biomass circulating fluid bed boiler of prior art, its inner heat-exchanging component mainly is made up of coiled pipe, and its elbow part directly contacts with the living beings flue gas.Owing to contain particle in the living beings flue gas, and elbow is the position of most fragile, and particle can wash away bend part, and the wearing and tearing elbow is scrapped coiled pipe in advance.On the one hand, the straight section of coiled pipe partly is horizontally disposed, causes steam to be trapped in the pipe and forms bubble, steam is built the pressure and causes in pipe and carbonated drink resonance influences security of operation.In addition, if adopt horizontal tube coil to arrange, cause occurring pipe dust stratification, bridging problem easily, make heating surface area little, with the passing of time can influence the heat absorption efficiency of the pipe that is heated, the steam of elbow flows obstructed in the pipe.
The utility model content
In order to solve the problem that prior art exists, the utility model provide a kind of anti abrasive safe, heating surface area is big, heat absorption efficiency is high and can prevent the pipe dust stratification and the biomass circulating fluid bed boiler of bridging problem.
In order to realize above purpose, the technical solution of the utility model is as follows: a kind of biomass circulating fluid bed boiler, comprise shell and tube assembly, the upper collecting chamber of the upper end tool of tube assembly is communicated with by fairlead with shell, the next part case that the lower end of tube assembly has is communicated with by down-comer with shell, the two ends, the left and right sides of described tube assembly are provided with gripper shoe respectively, and the space about two between the relative gripper shoe is as exhaust gases passes.
Further, it is characterized in that described gripper shoe offers some through holes, pipe is placed through in the through hole.
Described gripper shoe is spliced by the polylith support chip, and the both sides of every support chip offer half round cut, and the half round cut of described adjacent two support chips is to being connected into through hole, and pipe is placed through in the through hole.
The serve as reasons angle of the unspecified angle of its elbow within 1 to 89 degree of described pipe forms curved structure in a zigzag.
Described gripper shoe is positioned at pipe bend section part or pipe straight section part.
Connect dividing plate between described adjacent elbow gripper shoe and/or the straight section gripper shoe.
Described gripper shoe is fixed in the bracket assembly.
The every outer tube surface at the top of described tube assembly is placed dust cover.
Compared with prior art, use gripper shoe,, on the one hand pipe is isolated in outside the exhaust gases passes, avoided the elbow of pipe not washed away by particle in the flue gas and be worn on the one hand as exhaust gases passes.
The tube assembly of recirculating fluidized bed inside is designed to " it " font, after being heated, pipe will water is vaporized into steam, steam is in " it " font pipe uphill process, effectively separate vapour and current, and water vapour and current can not produce bubble through the elbow section time, can in pipe, not cause carbonated drink resonance owing to building the pressure of steam yet, the smooth and easy upper collecting chamber that rises to of steam is introduced in the shell, and is safe and reliable to operation.
The tube assembly of " it " font, help increasing the heating surface area maximization of pipe, therefore under the prerequisite that satisfies the requirement of heating power calculating heating surface area, increase the spacing between each pipe as far as possible, can improve problems such as dust stratification, bridging, increase the heat absorption efficiency of pipe.
Description of drawings
Fig. 1 is the structural representation of the utility model biomass circulating fluid bed boiler.
Fig. 2 be the A-A of Fig. 1 to partial sectional view, be used to show the structure of gripper shoe.
Below, with accompanying drawing the utility model further is described in detail in conjunction with specific embodiments.
The specific embodiment
As shown in Figure 1, the utility model is a kind of biomass circulating fluid bed boiler, and it is made up of shell 11, fairlead 9, down-comer 10, bracket assembly 7, tube assembly, gripper shoe 2, dividing plate 5, dust cover 3, upper collecting chamber 4 and next part case 6.Bracket assembly mounting pipe sub-component.Tube assembly is 7 stacks of " it " font pipe by some and forms.The angle of the elbow of pipe 1 to 89 the degree between, according to the practical operation situation at scene, the angle of the innermost layer pipe bend of tube assembly desirable 5 the degree, 10 the degree, 15 the degree, 20 the degree or 25 the degree etc.This elbow has the pipe of certain angle, makes common with it pipe (every pipe all is a level) contrast, and pipe has certain angle of inclination, helps flowing of steam and current, and the pipe of certain angle also helps the technology manufacturing.Tube assembly is fixing by gripper shoe 2, offers several through holes on the gripper shoe 2, and pipe is arranged in the through hole.In order to save material, gripper shoe 2 is spliced (as Fig. 2) after being welded by some support chips 8, and the both sides of support chip 8 offer half round cut, after the half round cut butt joint with per two support chips 8, just become a complete through hole.Compare the monoblock gripper shoe of global formation, after the support chip splicing of monolithic gripper shoe by fritter, the assembling of more convenient gripper shoe and pipe alleviates technology difficulty.The gripper shoe 2 of monoblock is arranged in the two ends of tube assembly, and the space between them has formed exhaust gases passes.If the monolithic gripper shoe is made of support chip 8, then gripper shoe also need connect common dividing plate, thereby the monolithic gripper shoe could be assembled into the gripper shoe formation exhaust gases passes of monoblock with dividing plate.The setting of gripper shoe except forming exhaust gases passes, is also played the effect that the particle in the flue gas washes away of avoiding of protection pipe bend.The pipe outlet of tube assembly upper end flocks together and is communicated with upper collecting chamber, and the pipe import of tube assembly lower end flocks together and is communicated with the next part case.The outermost layer pipe of the top end of tube assembly owing to be vulnerable to washing away of particle, needs to cover one deck dust cover 3 at the outer surface of pipe.The upper collecting chamber 4 of the upper end of tube assembly is communicated with by fairlead 9 with shell 11, and the next part case 6 of the lower end of tube assembly is communicated with by down-comer 10 with shell 11,
Operation principle of the present utility model is as follows: the water in the CFBB distributes the bottom that enters tube assembly under pressure along down-comer from the next part case, simultaneously, the input high-temperature flue gas flows from top to bottom from the outside of pipe, water in flue gas and the pipe carries out heat exchange, make water heating back produce high-temperature steam, steam is collected to upper collecting chamber along tortuous rising of " it " font, enters by fairlead and adopts water separator that water vapour is isolated available steam in the CFBB.Steam water interface is through after separating, and steam enters the female pipe of steam from steam (vapor) outlet and delivers to the user.Water level control is by the control of the water level control system on the shell, and steam pressure also is that the running status of evaporimeter is consistent with shell by the control of the control pressurer system on the shell.
Claims (9)
1. biomass circulating fluid bed boiler, comprise shell and tube assembly, the upper collecting chamber of the upper end tool of tube assembly is communicated with by fairlead with shell, the next part case that the lower end of tube assembly has is communicated with by down-comer with shell, it is characterized in that: the two ends, the left and right sides of described tube assembly are provided with gripper shoe respectively, and the space about two between the relative gripper shoe is as exhaust gases passes.
2. biomass circulating fluid bed boiler according to claim 1 is characterized in that described gripper shoe offers some through holes, and pipe is placed through in the through hole.
3. biomass circulating fluid bed boiler according to claim 1, it is characterized in that described gripper shoe is spliced by the polylith support chip, the both sides of every support chip offer half round cut, the half round cut of described adjacent two support chips is to being connected into through hole, and pipe is placed through in the through hole.
4. according to claim 2 or 3 described biomass circulating fluid bed boilers, it is characterized in that the serve as reasons angle of the unspecified angle of its elbow within 1 to 89 degree of described pipe forms curved structure in a zigzag.
5. biomass circulating fluid bed boiler according to claim 4 is characterized in that described gripper shoe is positioned at pipe bend section part.
6. biomass circulating fluid bed boiler according to claim 4 is characterized in that described gripper shoe is positioned at pipe straight section part.
7. biomass circulating fluid bed boiler according to claim 1 is characterized in that, connects dividing plate between described adjacent elbow gripper shoe and/or the straight section gripper shoe.
8. biomass circulating fluid bed boiler according to claim 1 is characterized in that described gripper shoe is fixed in the bracket assembly.
9. biomass circulating fluid bed boiler according to claim 1 is characterized in that, the every outer tube surface at the top of described tube assembly is placed dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201212466U CN202074512U (en) | 2011-04-22 | 2011-04-22 | Biomass circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201212466U CN202074512U (en) | 2011-04-22 | 2011-04-22 | Biomass circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074512U true CN202074512U (en) | 2011-12-14 |
Family
ID=45112613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201212466U Expired - Fee Related CN202074512U (en) | 2011-04-22 | 2011-04-22 | Biomass circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147107A (en) * | 2011-04-22 | 2011-08-10 | 广州迪森热能技术股份有限公司 | Boiler for biomass circulating fluidized bed |
-
2011
- 2011-04-22 CN CN2011201212466U patent/CN202074512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147107A (en) * | 2011-04-22 | 2011-08-10 | 广州迪森热能技术股份有限公司 | Boiler for biomass circulating fluidized bed |
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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: 20111214 Termination date: 20200422 |