CN207298919U - A kind of cold central tube of novel fluidization bed boiler water - Google Patents
A kind of cold central tube of novel fluidization bed boiler water Download PDFInfo
- Publication number
- CN207298919U CN207298919U CN201720990374.1U CN201720990374U CN207298919U CN 207298919 U CN207298919 U CN 207298919U CN 201720990374 U CN201720990374 U CN 201720990374U CN 207298919 U CN207298919 U CN 207298919U
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- Prior art keywords
- header
- outlet header
- import
- water cooling
- central tube
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Abstract
The utility model discloses a kind of cold central tube of novel fluidization bed boiler water, including import header, outlet header, more water cooling tubes and the flame retardant coating made of refractory material；The import header and the outlet header are cylinder-like structure；The diameter of the import header cylinder is less than the diameter of the outlet header cylinder；The height of the import header is less than the height of the outlet header；The import header is coaxially disposed with the outlet header；The more water cooling tubes are arranged between the import header and the outlet header；The import header is connected by water inlet pipe with the water cooling tube；The outlet header is connected with the water cooling tube；The flame retardant coating is coated on the outside of the water cooling tube.The utility model has the characteristics that simple in structure, manufacture cost is low, can effectively reduce central tube tube wall temperature so as to ensure central tube normal operation.
Description
Technical field
The utility model belongs to fluidized bed combustion technical field of auxiliary equipment, and in particular to a kind of novel fluidization bed boiler water
Cold central tube.
Background technology
Circulating fluidized bed boiler is that fossil fuel control, burning produces steam under special fluidized state in burner hearth
Equipment.Here tiny solid particle conveys under certain speed passes through burner hearth, leaves the particle overwhelming majority of burner hearth by gas
Solid separator captures, and burner hearth is being sent back to apart from air distribution plate certain altitude, forms enough solid material circulations, ensures than more uniform
Fire box temperature.
Nearly three during the last ten years, and circulating fluidized bed boiler has obtained significant progress in China, but it is in design, equipment system
Make and repair etc. is not perfect.With putting into operation for large capacity Circulating Fluidized Bed Boilers, large circulating fluidized bed boiler
Equipment exposes some defects in operation.
Central tube is one of critical piece of circulating fluidized bed boiler, at present all central tube be all with heat resisting cast steel or
Heat-resisting steel sheet and plate is made, manufacture, install, freight it is very high, it is warm herein since central tube installation site is on cyclone separator top
Degree more than 900 °, and difference because of material formula and rare metal content how much, or the defects of in manufacturing process, have
Crackle or burning phenomenon also occurs in the central tube cast a bit.
Utility model content
The utility model for the prior art difference and rare metal content of high cost, because of material formula number with
And the defects of causing central tube that crackle or burning phenomenon also occurs the defects of in manufacturing process, provides a kind of novel fluidization
Bed boiler water-cooling central tube.
The purpose of this utility model is achieved through the following technical solutions：
A kind of cold central tube of novel fluidization bed boiler water, including import header, outlet header, more water cooling tubes and by resistance to
Flame retardant coating made of fiery material；The import header and the outlet header are cylinder-like structure；The import header cylinder
Diameter be less than the outlet header cylinder diameter；The height of the import header is less than the height of the outlet header；Institute
Import header is stated to be coaxially disposed with the outlet header；The more water cooling tubes are arranged at the import header and collect with the outlet
Between case；The import header is connected by water inlet pipe with the water cooling tube；The outlet header is connected with the water cooling tube；Institute
Flame retardant coating is stated to be coated on the outside of the water cooling tube.
Further, in order to ensure the cooling effect of central tube, the more water cooling tubes with the outlet header it is vertical in
Even circumferential is arranged centered on heart line.
Further, wear, also set up on the outside of the import header, the outlet header and the water cooling tube in order to prevent
There is the scuff-resistant coating poured by plastic material.
Preferably, the thickness of the scuff-resistant coating is more than 100mm.
Further, scuff-resistant coating comes off in order to prevent, on the outside of the import header, the outlet header and the water cooling tube
Several pins are welded with matrix arrangements interval.
Compared with prior art, the utility model at least has the following advantages：
The cold central tube of novel fluidization bed boiler water of the utility model, by collecting in the import header being coaxially disposed and outlet
Even circumferential sets more water cooling tubes between case, effectively reduces central tube tube wall temperature, ensure that the reliable of central tube；Together
When, the flame retardant coating made of refractory material is set on the outside of water cooling tube, and outside import header, outlet header and water cooling tube
Side sets the scuff-resistant coating poured by plastic material, substantially increases the service life of whole central tube；Structure is also very simple
Single, manufacture cost is low.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to the structure shown in these attached drawings.
Fig. 1 is the front view of the cold central tube of novel fluidization bed boiler water in the present embodiment；
Fig. 2 is the top view of the cold central tube of novel fluidization bed boiler water shown in Fig. 1.
Description of reference numerals：1- import headers；2- outlet headers；3- water cooling tubes；4- water inlet pipes；5- flame retardant coatings.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the part of the embodiment of the utility model, rather than all
Embodiment.
Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained, shall fall within the protection scope of the present invention.
In the description of the utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise
It is clearly specific to limit.
In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can mechanically connect, also may be used
Be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be the connection inside two elements
Or the interaction relationship of two elements, unless otherwise restricted clearly.For the ordinary skill in the art, can be with
Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.
In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.
As shown in Figure 1 and Figure 2, a kind of cold central tube of novel fluidization bed boiler water, including it is import header 1, outlet header 2, more
Root water cooling tube 3 and flame retardant coating 4 made of refractory material；The import header 1 and the outlet header 2 are cylindric knot
Structure；The diameter of 1 cylinder of import header is less than the diameter of 2 cylinder of outlet header；The height of the import header 1 is less than
The height of the outlet header 2；The import header 1 is coaxially disposed with the outlet header 2；The more water cooling tubes 3 are set
Between the import header 1 and the outlet header 2；The import header 1 is connected by water inlet pipe 4 with the water cooling tube 3；
The outlet header 2 is connected with the water cooling tube 3；The flame retardant coating 4 is coated on the outside of water cooling tube 3.
Preferably, water cooling tube 3 is provided with 40 in the present embodiment.
As the preferred solution of the present embodiment, in order to ensure the cooling effect of central tube, 40 water cooling tubes 3 are with described
Even circumferential is arranged centered on the vertical centerline of outlet header 2.
Preferably, wear in order to prevent, the import header 1, the outlet header 2 and the outside of the water cooling tube 3 are also
It is provided with the scuff-resistant coating (not shown) poured by plastic material.
As the preferred solution of the present embodiment, the thickness of the scuff-resistant coating is more than 100mm.
Preferably, scuff-resistant coating comes off in order to prevent, the import header 1, the outlet header 2 and the water cooling tube 3
Outside is welded with several pin (not shown)s in matrix arrangements interval.
In use, the pipeline of economizer into drum is disconnected at suitable position, access import header 1, current are water cooled
Pipe 3 is drawn from outlet header 2, accesses former economizer pipeline, and current use forced circulation, and flow velocity is very fast, is further ensured that cold go
Effect；Water cooling tube 3 arranges 40 pipes altogether, can effectively reduce central tube tube wall temperature, ensure that the reliable of central tube.
More than, it is only the preferable embodiment of the utility model, but the protection domain of utility model is not limited to
This, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with right
Subject to the protection domain of claim.
Claims (5)
1. a kind of cold central tube of novel fluidization bed boiler water, it is characterised in that including import header, outlet header, more water coolings
Pipe and the flame retardant coating made of refractory material；The import header and the outlet header are cylinder-like structure；It is described into
The diameter of mouth header cylinder is less than the diameter of the outlet header cylinder；The height of the import header is less than the outlet header
Height；The import header is coaxially disposed with the outlet header；The more water cooling tubes be arranged at the import header with
Between the outlet header；The import header is connected by water inlet pipe with the water cooling tube；The outlet header and the water
Cold pipe connection；The flame retardant coating is coated on the outside of the water cooling tube.
2. the cold central tube of novel fluidization bed boiler water according to claim 1, it is characterised in that the more water cooling tubes with
Even circumferential is arranged centered on the vertical centerline of the outlet header.
3. the cold central tube of novel fluidization bed boiler water according to claim 1, it is characterised in that the import header, institute
State and be additionally provided with the scuff-resistant coating poured by plastic material on the outside of outlet header and the water cooling tube.
4. the cold central tube of novel fluidization bed boiler water according to claim 3, it is characterised in that the thickness of the scuff-resistant coating
More than 100mm.
5. the cold central tube of novel fluidization bed boiler water according to claim 1 or 3, it is characterised in that the import header,
On the outside of the outlet header and the water cooling tube several pins are welded with matrix arrangements interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990374.1U CN207298919U (en) | 2017-08-09 | 2017-08-09 | A kind of cold central tube of novel fluidization bed boiler water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720990374.1U CN207298919U (en) | 2017-08-09 | 2017-08-09 | A kind of cold central tube of novel fluidization bed boiler water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207298919U true CN207298919U (en) | 2018-05-01 |
Family
ID=62448929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720990374.1U Expired - Fee Related CN207298919U (en) | 2017-08-09 | 2017-08-09 | A kind of cold central tube of novel fluidization bed boiler water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207298919U (en) |
-
2017
- 2017-08-09 CN CN201720990374.1U patent/CN207298919U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180501 Termination date: 20210809 |