Flow stabilizing device and design method for steam boiler with optimized pipe diameter

A technology for a steam boiler and a flow-stabilizing device, which is applied to water-tube-type steam boilers, steam boilers, boiler water pipes, etc., can solve the problems of low heat absorption efficiency of the riser, achieve simple structure, improve the effect of steady flow, and strengthen heat transfer. Effect

Active Publication Date: 2019-09-27
佛山市佳燊金属制品有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the above problems, the present invention improves on the basis of the previous invention, and provides a new steam boiler and its design method, thereby solving the problem of low heat absorption efficiency of the rising tube

Method used

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  • Flow stabilizing device and design method for steam boiler with optimized pipe diameter
  • Flow stabilizing device and design method for steam boiler with optimized pipe diameter
  • Flow stabilizing device and design method for steam boiler with optimized pipe diameter

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Embodiment Construction

[0049]The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0051] 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) in ...

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Abstract

The invention provides a design method for a steam boiler. The steam boiler comprises an upper boiler cylinder, a lower boiler cylinder, an ascending pipe and a descending pipe, wherein the ascending pipe and the descending pipe are connected between the upper boiler cylinder and the lower boiler cylinder, and flow stabilizing devices are arranged in the ascending pipe. The design method comprises the following step that along with the increase of the pipe diameter of the ascending pipe, the distance between the adjacent flow stabilizing devices is continuously reduced. According to the provided design method for the steam boiler with the flow stabilizing devices with novel structures, the boiler which is designed by using the method has the advantages that when the steam and liquid two phases flow in the ascending pipe, the heat transfer is enhanced, meanwhile, 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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Patent Type & Authority Applications(China)
IPC IPC(8): F22B21/08F22B37/10
CPCF22B21/08F22B37/10
Inventor 赵伟谷潇潇江程李红云胡全君
Owner 佛山市佳燊金属制品有限公司
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