CN201662046U - Variable cross section structure of water cooled wall - Google Patents
Variable cross section structure of water cooled wall Download PDFInfo
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- CN201662046U CN201662046U CN201020154793XU CN201020154793U CN201662046U CN 201662046 U CN201662046 U CN 201662046U CN 201020154793X U CN201020154793X U CN 201020154793XU CN 201020154793 U CN201020154793 U CN 201020154793U CN 201662046 U CN201662046 U CN 201662046U
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Abstract
The utility model provides a variable cross section structure of a water cooled wall. The utility model is characterized in that the upper parts of first pipes which form a lower cross section are connected with oblique connecting pipes through V-shaped forging elbows. The oblique connecting pies are connected and form the lower ends of the second pipes of an upper cross section. The utility mode has the advantages that raw material is saved, and at the same time, the flow speed and heat conductive effect of exhaust gas medium in a hearth is improved.
Description
Technical field
The utility model relates to a kind of variable section structure of water-cooling wall.
Background technology
Be arranged on the inboard wall of burner hearth face and mainly use water-cooled heating surface, be called water-cooling wall.It is the main evaporating heating surface of station boiler.The main effect of water-cooling wall is: absorb radiant heat in the stove, water is heated into saturated vapor; The protection furnace wall is simplified furnace wall structure, alleviates furnace wall weight, and this mainly is because water-cooling wall absorbs radiant heat in the stove, the cause that temperature of furnace wall is reduced; Absorb furnace heat, flue gas is cooled to the temperature that furnace outlet allows, this is to alleviating ash erosion, preventing that the furnace outlet slagging scorification from all being favourable; Water-cooling wall absorbs radiant heat under furnace high-temperature, heat-transfer effect is good, so can reduce boiler steel consumption and boiler cost.
Present water-evaporating furnace cross section mostly is rectangle or square structure greatly, and its top and the bottom section of burner hearth size does not change.For the boiler of some big capacity parameters, the influence that arranged by the burner hearth internal heating surface, upper furnace need not the cross section onesize with the bottom.The structure that adopts uiform section to arrange is not only relatively wasted tubing, and influences that the flow velocity of flue gas medium slows down in the burner hearth, and heat-transfer effect is not good.
The utility model content
The purpose of this utility model provides a kind of tubing, the flow velocity that increases flue gas medium in the burner hearth and water-cooling wall variable section structure of heat-transfer effect saved.
In order to achieve the above object, the technical solution of the utility model has provided a kind of variable section structure of water-cooling wall, it is characterized in that the top of forming first pipe of lower section is connected with oblique tube connector by V-arrangement forging elbow, oblique tube connector connects to form the lower end of second pipe of upper section.
The utility model, is realized that at least 2 pipes in bottom are merged into the variation of the pipe in top, thereby is realized the change of sectional dimension by the transition and conversion of V-arrangement forging elbow and oblique tube connector in the subregion on furnace wall cooling vertical section both sides.
The utility model has the advantages that: saved raw material, increased the flow velocity and the heat-transfer effect of flue gas medium in the burner hearth simultaneously.
Description of drawings
The variable section structure schematic diagram of a kind of water-cooling wall that Fig. 1 provides for the utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
3 dimensional views of the variable section structure of a kind of water-cooling wall that Fig. 3 provides for the utility model.
The specific embodiment
Specify the utility model below in conjunction with embodiment.
Embodiment
As shown in Figure 1 to Figure 3, the variable section structure of a kind of water-cooling wall that provides for the utility model.The furnace wall cooling vertical section bottom of forming by first pipe 1 that comprises vertical arrangement, subregion on both sides, furnace wall cooling vertical section bottom, the upper end of per two bottom first pipes 1 is connected with the lower end of V-arrangement forging elbow 2, the lower end of oblique tube connector 3 is connected with the upper end of V-arrangement forging elbow 2 draws, and the upper end of oblique tube connector 3 is connected with the lower end of second pipe 4 of forming furnace wall cooling upper vertical section.
Water-cooling wall vertical section of the present utility model cross section is narrowed down by wide, saves raw material.Simultaneously, the cross section narrows down and has also increased flue gas flow rate, and plays and reduce fouling of heating surface and strengthen the effect of conducting heat.
Claims (2)
1. the variable section structure of a water-cooling wall is characterized in that, the top of forming first pipe (1) of lower section is connected with oblique tube connector (3) by V-arrangement forging elbow (2), and oblique tube connector (3) connects to form the lower end of second pipe (4) of upper section.
2. the variable section structure of a kind of water-cooling wall as claimed in claim 1 is characterized in that, at least 2 tops of forming first pipe (1) of lower section are connected with V-arrangement forging elbow (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020154793XU CN201662046U (en) | 2010-04-09 | 2010-04-09 | Variable cross section structure of water cooled wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020154793XU CN201662046U (en) | 2010-04-09 | 2010-04-09 | Variable cross section structure of water cooled wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662046U true CN201662046U (en) | 2010-12-01 |
Family
ID=43232463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020154793XU Expired - Lifetime CN201662046U (en) | 2010-04-09 | 2010-04-09 | Variable cross section structure of water cooled wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201662046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015018379A3 (en) * | 2013-08-09 | 2015-04-16 | 中国科学院工程热物理研究所 | Circulating fluidized bed boiler furnace having a variable cross-section water-cooled cylinder |
-
2010
- 2010-04-09 CN CN201020154793XU patent/CN201662046U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015018379A3 (en) * | 2013-08-09 | 2015-04-16 | 中国科学院工程热物理研究所 | Circulating fluidized bed boiler furnace having a variable cross-section water-cooled cylinder |
| US9599331B2 (en) | 2013-08-09 | 2017-03-21 | Institute Of Engineering Thermophysics, Chinese Academy Of Sciences | Furnace of circulating fluidized bed boiler having variable cross-section water-cooled column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |