CN201935212U - Boiler rear arch with adjustable coverage rate - Google Patents
Boiler rear arch with adjustable coverage rate Download PDFInfo
- Publication number
- CN201935212U CN201935212U CN2010206469000U CN201020646900U CN201935212U CN 201935212 U CN201935212 U CN 201935212U CN 2010206469000 U CN2010206469000 U CN 2010206469000U CN 201020646900 U CN201020646900 U CN 201020646900U CN 201935212 U CN201935212 U CN 201935212U
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- arch
- boiler rear
- rear arch
- boiler
- utility
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- Expired - Fee Related
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Abstract
The utility model provides a boiler rear arch with an adjustable coverage rate, which relates to an improvement of a boiler rear arch structure. The utility model provides the boiler rear arch with the adjustable coverage rate, which has a simple structure and is capable of adapting to multiple fuels. The the boiler rear arch comprises a boiler rear arch, at least two arch tubes and special-shaped bricks and is structurally characterized in that one ends of the arch tubes are fixed in the boiler wall of the bottom surface of the boiler rear arch; the other ends of the arch tubes extend out along the bottom surface of the boiler rear arch and are upwards bent and finally are connected with the side wall of the boiler rear arch; each special-shaped brick is a cuboid; and one side face of the cuboid is provided with grooves which correspond to the arch tubes.
Description
Technical field
The utility model relates to the improvement of arch structure behind the boiler.
Background technology
Existing boiler adopts boiler face arch and boiler rear arch usually, also adopts hogging sometimes; The kind relation of the shape of chimney arch and layout and fuel is very big; Chimney arch can be strengthened the mixing of gas stream in the stove, and heat radiation and hot flow of flue gas in rationalization's stove are caught fire to reach in good time, vigorous burning and the purpose that fully burns.
The boiler face arch is very big to the effect of igniting of fuel, but itself can not produce heat, can only put aside heat and radiations heat energy.The boiler rear arch is positioned at the rear portion of grate, can control airflow direction, and it is anterior to force high-temperature flue gas to flow to, to strengthen just entering the heat radiation of fuel; In addition, high-temperature flue gas washes away to the fresh fuel of ignition zone and the arch that ignites, to strengthen convection heat transfer' heat-transfer by convection; On the fresh fuel red-hot particle of carrying secretly in the last air-flow can be scattered in grate when air-flow is turned before, also can help burning.
This shows that the area coverage of the boiler rear arch that different fuel adopted is also inequality; In order to make the better of low-grade coal burning, need the area coverage of boiler rear arch corresponding bigger; And service property (quality) for preventing to burn coking, needs the area coverage of boiler rear arch corresponding less preferably during coal.
Existing boiler rear arch is primarily aimed at limited fuel and designs; But the fuel band on the market is varied; Such boiler adaptability is relatively poor, makes its popularization become problem.
Summary of the invention
The utility model is exactly at the problems referred to above, and a kind of boiler rear arch of simple in structure, the coverage rate adjusted that can adapt to pluralities of fuel is provided.
For reaching above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, the utility model comprises boiler rear arch, at least two arch tubes and special form brick, one end of its structural feature arch tube is fixedly set in the furnace wall of intrados behind the boiler, the other end of arch tube intrados behind the boiler is stretched out and is bent upwards, and the sidewall with the boiler rear arch links to each other at last; Described special form brick is a cuboid, and a side of cuboid is provided with and the corresponding groove of arch tube.
As a kind of preferred version: special form brick and boiler rear arch all adopt refractory concrete to make.
The beneficial effects of the utility model: 1, can adapt to various fuel, be easy to promote: because design feature of the present utility model, can reduce or increase the area coverage of boiler rear arch by the dress special form brick on the demolition, installation arch tube, and, can adjust coverage rate arbitrarily according to actual conditions, thereby make boiler adapt to various fuel; Be more prone to promote.
2, simple to operate, labour intensity is low: because the utility model is simple in structure, and only can adjust the coverage rate of boiler rear arch by the special form brick on the demolition, installation arch tube, operate very simply, labour intensity is relatively also low, and lack man-hour.
3, long service life: because special form brick of the present utility model and boiler rear arch all adopt refractory concrete to make, so high-temperature resistance is strong, long service life.
Description of drawings
Clearer for the beneficial effect that makes technical problem solved by the invention, technical scheme and brought, below in conjunction with accompanying drawing and preferred version, the utility model is further elaborated.Should be appreciated that concrete preferred version described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
1 is that boiler rear arch, 2 is that special form brick, 3 is arch tube in the accompanying drawing.
The specific embodiment
The utility model comprises boiler rear arch 1, at least two arch tubes 3 and special form bricks 2, one end of arch tube 3 is fixedly set in the furnace wall of boiler rear arch 1 bottom surface, the other end of arch tube 3 stretches out along the bottom surface of boiler rear arch 1 and is bent upwards, and the sidewall with boiler rear arch 1 links to each other at last; Described special form brick 2 is a cuboid, and a side of cuboid is provided with and arch tube 3 corresponding grooves 4.
As a kind of preferred version: special form brick 2 and boiler rear arch 1 all adopt refractory concrete to make; Long service life.
Below in conjunction with description of drawings installation process of the present utility model: the first block of special form brick 2 of between two rear arched tubes 3, packing into earlier, with arch tube 3 correspondences of groove 4 the same sides of special form brick 2; Again second block of special form brick 2 and first block of special form brick 2 are packed between two arch tubes 3 back-to-back, make arch tube 3 correspondences of second block of special form brick 2 with opposite side; In the middle of so just making that two blocks of special form bricks 2 are clipped in by the arch tube 3 of both sides, can not drop; By that analogy, between rear arched tube 3, add other special form bricks 2, add to till suitable boiler rear arch 1 area coverage.
Above content is to further describing that the utility model is done in conjunction with concrete preferred implementation; can not assert that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the definite protection domain of claims that the utility model is submitted to.
Claims (1)
1. can adjust the boiler rear arch of coverage rate, comprise boiler rear arch (1), arch tube (3) and special form brick (2), an end that it is characterized in that arch tube (3) is fixedly set in the furnace wall of boiler rear arch (1) bottom surface, the other end of arch tube (3) stretches out along the bottom surface of boiler rear arch (1) and is bent upwards, and the sidewall with boiler rear arch (1) links to each other at last; Described special form brick (2) is a cuboid, and a side of cuboid is provided with and the corresponding groove of arch tube (3) (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206469000U CN201935212U (en) | 2010-12-08 | 2010-12-08 | Boiler rear arch with adjustable coverage rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206469000U CN201935212U (en) | 2010-12-08 | 2010-12-08 | Boiler rear arch with adjustable coverage rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935212U true CN201935212U (en) | 2011-08-17 |
Family
ID=44446730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206469000U Expired - Fee Related CN201935212U (en) | 2010-12-08 | 2010-12-08 | Boiler rear arch with adjustable coverage rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201935212U (en) |
-
2010
- 2010-12-08 CN CN2010206469000U patent/CN201935212U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20110817 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |