Steam boiler

A technology for steam boilers and drums, applied in steam boilers, water-tube steam boilers, boiler water pipes, etc., can solve the problems of inability to stabilize the flow, low heat absorption efficiency of the riser, and difficulty in entering and passing fluids, reducing the Noise and vibration, improve the effect of steady flow, improve the effect of heat transfer

Inactive Publication Date: 2017-07-14
ZHONGBEI UNIV
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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 tran

Method used

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Embodiment Construction

[0046] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0047] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0048] 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. The steam boiler comprises an upper boiler barrel, a lower boiler barrel, and an ascending pipe and a descending pipe which are connected between the upper boiler barrel and the lower boiler barrel, wherein a current stabilizer is arranged in the ascending pipe, and comprises a core and a shell, the core is arranged in the shell, the shell is fixedly connected with the inner wall of the ascending pipe, the core is an integrated structural member extending in the length direction of the shell, and a plurality of through holes are formed in the structural member. According to the steam boiler with a current stabilizer, adopting a novel structure, provided by the invention, when steam-liquid two-phase flow exists in the ascending pipe, the heat transfer is strengthened, besides, the vibration of the ascending pipe is weakened, and the noise level is reduced.

Description

technical field [0001] The present invention is a project commissioned by colleges and universities to carry out research and development. 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 boile...

Claims

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Application Information

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IPC IPC(8): F22B21/14F22B37/10
CPCF22B21/14F22B37/10
Inventor 郭春生刘勇齐超宋金圣邓伊涵高军宁淑荣张斌曲芳仪陈子昂年显勃李言伟
Owner ZHONGBEI UNIV
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