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Steam boiler method for pipe diameter design

A design method and technology for steam boilers, which are applied in water-tube steam boilers, steam boilers, steam generation methods using pressure combustion, etc., can solve problems such as equipment damage, low heat absorption efficiency of risers, large noise and vibration, and mechanical shocks. , to reduce vibration, reduce noise level, reduce noise and vibration

Inactive Publication Date: 2018-11-23
NANTONG ZHENRU MOULD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The impact phenomenon will cause large noise vibration and mechanical shock, causing damage to the equipment
[0006] 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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  • Steam boiler method for pipe diameter design
  • Steam boiler method for pipe diameter design
  • Steam boiler method for pipe diameter design

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Embodiment Construction

[0042] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0044] further 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 of the tube bundle. 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 supp...

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Abstract

The invention provides a steam boiler method for pipe diameter design. The steam boiler method involves an upper boiler cylinder, a lower boiler cylinder, ascending pipes and descending pipes, whereinthe ascending pipes and the descending pipes are connected between the upper boiler cylinder and the lower boiler cylinder, the ascending pipes are internally provided with flow stabilizing devices,and each ascending pipe is internally provided with multiple flow stabilizing devices, wherein the design method comprises the steps that the distance from an inlet of one of the ascending pipes is H,the pipe diameter of each flow stabilizing device is D shown in the formula, wherein D' is first derivative of D, and D' is less than 0. The provided novel steam boiler design method has the advantages that heat transfer is strengthened, the vibration of the ascending pipes is weakened, and the noise level is reduced.

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): F22B1/22F22B31/08
CPCF22B1/22F22B21/04F22B31/08F22B37/10
Inventor 不公告发明人
Owner NANTONG ZHENRU MOULD TECH CO LTD
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