CN204693400U - CFBB is by pipe type water cold wall pipe shoe - Google Patents
CFBB is by pipe type water cold wall pipe shoe Download PDFInfo
- Publication number
- CN204693400U CN204693400U CN201520403291.9U CN201520403291U CN204693400U CN 204693400 U CN204693400 U CN 204693400U CN 201520403291 U CN201520403291 U CN 201520403291U CN 204693400 U CN204693400 U CN 204693400U
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- CN
- China
- Prior art keywords
- screen tube
- water screen
- abrasionproof
- tubular construction
- opotism
- 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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Abstract
The utility model relates to a kind of CFBB by pipe type water cold wall pipe shoe, belong to fluidized-bed combustion boiler technical field, comprise burner hearth and be arranged on the water screen tube in burner hearth, water screen tube is provided with abrasionproof opotism, water screen tube above abrasionproof opotism is provided with and allows tubular construction, tubular construction is allowed to be the arc fold bending of water screen tube, allow the tube wall surface of water screen tube above tubular construction with allow the abrasionproof opotism surface of water screen tube below tubular construction and flush, this device increase allows tubular construction, the eddy current of abrasionproof opotism root is avoided to wear and tear, the further prolongation abrasionproof cycle, ensure that boiler normally runs work.
Description
Technical field
The utility model relates to a kind of CFBB by pipe type water cold wall pipe shoe, belongs to fluidized-bed combustion boiler technical field.
Background technology
The features such as CFBB has efficiently, energy-saving and environmental protection, be widely used, but when practical application runs, because this boiler is by the impact of the reasons such as ature of coal fuel, combustion system, during operation, the inner coal particle thing of boiler furnace glides rapidly to press close to wall-cooling surface, and ash concentration is increasing, cause water screen tube worn down, seriously may cause booster.
In patent No. CN201396753Y, these three patents of CN201866759U, CN202915350U, propose on water screen tube, arrange abrasionproof opotism, reduce the wearing and tearing of tube wall, but during actual motion, coal particle thing can impact wearing and tearing to the top of every one abrasionproof opotism, and longtime running can affect the safe operation of boiler.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and solve above-mentioned defect, can extend the CFBB in operation abrasionproof cycle by pipe type water cold wall pipe shoe.
CFBB described in the utility model is by pipe type water cold wall pipe shoe, comprise burner hearth and be arranged on the water screen tube in burner hearth, water screen tube is provided with abrasionproof opotism, water screen tube above abrasionproof opotism is provided with and allows tubular construction, allow tubular construction be the arc fold bending of water screen tube, allow the tube wall surface of water screen tube above tubular construction with allow the abrasionproof opotism surface of water screen tube below tubular construction and flush.
Water screen tube above abrasionproof opotism is designed to allow tubular construction, changes the running orbit of burning particles thing further, vertical water-cooling wall is made bending, makes water-cooling wall avoid the eddy current wearing and tearing of decline burning particles thing, avoids the wearing and tearing of abrasionproof opotism.
The described transition position of tubular construction and water screen tube that allows is rounding off.
The described tubular construction projected length in the vertical direction that allows is 10-15cm.
The beneficial effect that the utility model is compared with prior art had is:
CFBB is reasonable in design by pipe type water cold wall pipe shoe, and original abrasionproof opotism increases and allows tubular construction, both combinationally use, and avoid the eddy current of abrasionproof opotism root wear and tear, extend the abrasionproof cycle further, and guarantee boiler normally runs work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is structure side view of the present utility model.
In figure: 1, allow tubular construction; 2, abrasionproof opotism; 3, water screen tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Embodiment 1
As depicted in figs. 1 and 2, CFBB comprises burner hearth by pipe type water cold wall pipe shoe and is arranged on the water screen tube 3 in burner hearth, water screen tube 3 is provided with abrasionproof opotism 2, water screen tube 3 above abrasionproof opotism 2 is provided with and allows tubular construction 1, allow tubular construction 1 be the arc fold bending of water screen tube 3, allow the tube wall surface of water screen tube 3 above tubular construction 1 with allow abrasionproof opotism 2 surface of water screen tube 3 below tubular construction 1 and flush.
Tubular construction 1 is allowed to be rounding off with the transition position of water screen tube 3.
Tubular construction 1 projected length is in the vertical direction allowed to be 10-15cm.
Abrasionproof opotism can select the version proposed in patent No. CN201396753Y, these three patents of CN201866759U, CN202915350U; water screen tube 3 does bending process on this basis; to change the movement locus that burning particles declines, protection abrasionproof opotism 2 top, reduces wear.
Allow tubular construction 1 and abrasionproof opotism 2 with the use of, reduce water screen tube 3 and wear and tear, increase the service life, reduce maintenance cost low, be specially adapted to the abrasionproof process of CFBB.
Embodiment 2
The structure of the present embodiment is substantially identical with above-described embodiment, the water screen tube 3 that its difference is only in embodiment 1 only above abrasionproof opotism 2 topmost allows tubular construction 1, the water screen tube 3 be designed in this embodiment above every one abrasionproof opotism 2 all allows tubular construction 1, the multiple eddy current wearing and tearing allowing pipe avoid every one opotism root, effect is better.
Claims (3)
1. a CFBB is by pipe type water cold wall pipe shoe, comprise burner hearth and be arranged on the water screen tube (3) in burner hearth, water screen tube (3) is provided with abrasionproof opotism (2), it is characterized in that: the water screen tube (3) of abrasionproof opotism (2) top is provided with and allows tubular construction (1), the arc fold bending allowing tubular construction (1) be water screen tube (3), allow the tube wall surface of tubular construction (1) top water screen tube (3) with allow abrasionproof opotism (2) surface of water screen tube (3) below tubular construction (1) and flush.
2. CFBB according to claim 1 is by pipe type water cold wall pipe shoe, it is characterized in that: the described tubular construction (1) that allows is rounding off with the transition position of water screen tube (3).
3. CFBB according to claim 1 and 2 is by pipe type water cold wall pipe shoe, it is characterized in that: described allows tubular construction (1) projected length in the vertical direction be 10-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520403291.9U CN204693400U (en) | 2015-06-11 | 2015-06-11 | CFBB is by pipe type water cold wall pipe shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520403291.9U CN204693400U (en) | 2015-06-11 | 2015-06-11 | CFBB is by pipe type water cold wall pipe shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204693400U true CN204693400U (en) | 2015-10-07 |
Family
ID=54233684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520403291.9U Expired - Fee Related CN204693400U (en) | 2015-06-11 | 2015-06-11 | CFBB is by pipe type water cold wall pipe shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204693400U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017156065A (en) * | 2016-03-04 | 2017-09-07 | 中国電力株式会社 | Reinforcement device and method for boiler pipe |
| CN109297016A (en) * | 2018-10-10 | 2019-02-01 | 贵州新能源开发投资股份有限公司 | It is a kind of to mix the circulating fluidized bed boiler front water wall pipe structure for burning coal slime |
-
2015
- 2015-06-11 CN CN201520403291.9U patent/CN204693400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017156065A (en) * | 2016-03-04 | 2017-09-07 | 中国電力株式会社 | Reinforcement device and method for boiler pipe |
| CN109297016A (en) * | 2018-10-10 | 2019-02-01 | 贵州新能源开发投资股份有限公司 | It is a kind of to mix the circulating fluidized bed boiler front water wall pipe structure for burning coal slime |
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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: 20151007 Termination date: 20180611 |