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Steam boiler

A technology for steam boilers and drums, which is applied in steam boilers, steam boiler accessories, water tube steam boilers, etc. It can solve the problems of inability to stabilize flow, low heat absorption efficiency of rising pipes, and difficulty in entering and passing fluids, etc., to achieve Reduce noise and vibration, improve the effect of steady flow, and improve the effect of heat exchange

Active Publication Date: 2018-07-27
青岛吉云德和商贸有限公司
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it was found during the operation of this device that the space A formed between the three pipes is relatively small because the pipes are tightly combined, because the space A is formed by the convex arc of the three pipes, so most of the space A Narrowness will make it difficult for the fluid to enter and pass through, resulting in a short circuit of the fluid, which affects the heat transfer of the fluid and cannot play a good role in stabilizing the flow
Simultaneously because the many tubes of above-mentioned structure are combined together, manufacture difficulty
[0007] In view of the above problems, the present invention improves on the basis of the previous invention, and provides a new steam boiler, thereby solving the problem of low heat absorption efficiency of the rising tube

Method used

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Embodiment Construction

[0041] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0043] Such as figure 1 The aforementioned steam boiler includes an upper drum 1 and a lower drum 2 , and the ascending tube 3 and the downcomer 5 connect the upper drum 1 and the lower drum 2 . Water enters the downcomer 5 from the upper drum 1 . The water flows down in the downcomer and is collected in the lower drum 2. The riser 3 of the boiler is heated by the combustion of fuel in the combustion chamber 10 of the furnace. The heat absorbed by the riser 3 causes the liquid inside the tube to boil, thereby creating a two-phase mixture of water and steam. The two-phase mixture in the riser 3 reaches the upper drum 1 . The supercooled water released from the water supply pipe (not shown) i...

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Abstract

The invention provides a steam boiler which comprises an upper boiler barrel, a lower boiler barrel, ascending pipes and descending pipes; the ascending pipes and the descending pipes are connected between the upper boiler barrel and the lower boiler barrel; flow stabilization devices are arranged in the ascending pipes; each flow stabilization device comprises a core body axially arranged the center of the corresponding ascending pipe and a plurality of radial rods extending along the center rod to the radial directions; a plurality of fins extending from the radial rod downwards are arrangedon each radial rod; the fins are provided with sharp parts; and the sharp parts face downwards. With the adoption of the novel structure steam boiler with the flow stabilization devices, when gas-liquid two-phase flowing exists in the ascending pipes, heat transfer is improved, vibration of the ascending pipes is weakened, and the level of noise is lowered.

Description

technical field [0001] The invention belongs to the field of steam generation, in particular to a steam boiler, and belongs to the field of IPC classification number F22. Background technique [0002] The circuit that receives heat from the furnace and makes the fluid flow from a low level to a high level is called an "ascending loop", while the circuit that receives heat and makes a fluid flow from a high level to a low level is called a "falling loop". A circuit consists of a pipe or a group of pipes leading from a common point, such as a header or steam drum, and terminating at a common point, also a header or drum. [0003] In most natural circulation boiler designs, the heated tubes making up the evaporating section generally provide upward flow, but in multi-drum boilers, the descending heated tubes of the evaporator bundle do not. In this type of boiler, the descending receiver tubes provide the entire circulation flow to the furnace and riser tubes in the evaporator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B21/04F22B37/10F22B37/34
CPCF22B21/04F22B37/103F22B37/34
Inventor 郭春生曲芳仪刘海孙蛟年显勃陈子昂江程李言伟
Owner 青岛吉云德和商贸有限公司
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