Unlock instant, AI-driven research and patent intelligence for your innovation.

A suspended superheater and its applied multi-process circulating fluidized bed boiler

A circulating fluidized bed and superheater technology, applied in fluidized bed boilers, fluidized bed combustion equipment, steam boilers, etc., can solve problems such as stress concentration, and achieve the effects of avoiding stress concentration, simple structure and cost saving

Active Publication Date: 2019-02-15
BEIJING NOWVA ENERGY TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to address the current existing problems and provide a suspended superheater and a multi-flow circulating fluidized bed boiler for its application, which can not only solve the problem of stress concentration caused by the expansion of the entire superheater, but also has a simple structure ,save costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A suspended superheater and its applied multi-process circulating fluidized bed boiler
  • A suspended superheater and its applied multi-process circulating fluidized bed boiler
  • A suspended superheater and its applied multi-process circulating fluidized bed boiler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The present invention provides a multi-process circulating fluidized bed boiler, the multi-process circulating fluidized bed boiler includes:

[0047] Main combustion chamber 1, secondary combustion chamber 2, burnout chamber 3, drum 4, superheater 5, cyclone separator 6, tail flue 7 and economizer 8.

[0048] The main combustion chamber 1, the auxiliary combustion chamber 2, and the burnout chamber 3 are arranged side by side in sequence, and all three are composed of a membrane water wall and a connected header. The drum 4 is arranged on the top of the boiler, and the superheater 5 is arranged in the burnout chamber 3, the cyclone separator 6 is arranged behind the burnout chamber 3, and is used to separate the flue gas generated by the combustion of the furnace, and the separated flue gas goes to the tail flue 7, and the economizer 8 is arranged in the tail flue 7 inside.

[0049] The structure of above-mentioned superheater 5 is as figure 2 and image 3 shown, i...

Embodiment 2

[0068] The invention provides a suspension type superheater, which is applied to a multi-flow circulating fluidized bed boiler, and can be arranged in a burnout chamber or in a tail flue. The structure of the suspended superheater is as follows: figure 2 and image 3 As shown, the various components included, the functions of each component and the connection relationship between them are the same as the superheater 5 in the above embodiment, and will not be described in detail here.

[0069] The saturated steam that enters the inlet header 51 of the superheater through the drum 4 enters the intermediate header 56 through the connecting pipe 52 of the descending section, and the intermediate header 56 disperses the saturated steam passing through the connecting pipe 52 of the descending section upward to the coiled pipe of the superheater In 54, the superheater serpentine pipe 54 goes out, enters the superheater outlet header 59 through the ascending section connecting pipe ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a suspensory superheater and a multi-flow circulating fluidized bed boiler used by the suspensory superheater. A superheater inlet collection box (51) and a superheater outlet collection box (59) are arranged at the top; a middle collection box (56) is arranged on the lower portion; descent stage connection pipes (52) are symmetrically arranged into two rows, each row of descent stage connection pipe (52) is led out from the superheater inlet collection box (51) in the inclined lower direction, is bent, perpendicularly extends downwards and is collected to the middle collection box (56); one end of a superheater coiler (54) is connected with the middle collection box (56), the other end of the superheater coiler (54) is connected with an ascent stage connection pipe (58), and the ascent stage connection pipe (58) extends upwards and is connected with the superheater outlet collection box (59); and the upper end of a suspending device (53) acts on a top transverse beam, and the lower end of the suspending device (53) acts on the descent stage connection pipes (52). According to the suspensory superheater and the multi-flow circulating fluidized bed boiler used by the suspensory superheater, the superheater can overall expand downwards freely, and the stress concentration phenomenon can be effectively avoided; unnecessary heatproof steel materials can be saved; and the wall penetrating positions can be decreased, and furnace wall sealing is facilitated.

Description

technical field [0001] The invention relates to boiler equipment, in particular to a suspension type superheater and a multi-flow circulating fluidized bed boiler applied thereto. Background technique [0002] The superheater is a part used to increase the steam temperature in the boiler, and its function is to heat the saturated steam to superheated steam with a certain temperature. The superheater includes superheater inlet header, superheater outlet header, intermediate header, serpentine pipe and fixing device. [0003] The current boiler generally arranges the serpentine tube part of the superheater in the lower part of the tail flue of the boiler, and the superheater inlet header, superheater outlet header and intermediate header are arranged in the burnout chamber or the tail flue outside; the connecting pipe of the descending section and the connecting pipe of the ascending section are arranged outside the tail flue. The heaviest part of the superheater is the serp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F22B31/00F22G7/00F23C10/10
CPCF22B31/0007F22G7/00F23C10/10
Inventor 康建斌赵志田刘戈白彦茹李纹广单长武王军岗杨雷
Owner BEIJING NOWVA ENERGY TECH CO LTD