CN203464302U

CN203464302U - Inclined flue structure

Info

Publication number: CN203464302U
Application number: CN201320460790.2U
Authority: CN
Inventors: 姚德康; 邵小珍; 石丽阳; 杨智海; 李�诚; 陈虹
Original assignee: TONGFANG ENVIRONMENT CO Ltd
Current assignee: TONGFANG ENVIRONMENT CO Ltd
Priority date: 2013-07-31
Filing date: 2013-07-31
Publication date: 2014-03-05
Anticipated expiration: 2023-07-31

Abstract

The utility model discloses an inclined flue structure and relates to the technical field of environment protection. The structure is disposed between a denitration reactor outlet and a boiler air preheater inlet. The structure comprises a flue rectangular in cross section, a plurality of cross stiffening ribs are distributed on the outer wall of the flue along the flue cross section direction, and a plurality of inner supporting rods are arranged in the cross stiffening ribs. The structure is characterized in that inclined supports are arranged between the cross stiffening ribs of the flue and the inner supporting rods at intervals, and the lower portions of part of the cross stiffening ribs at the bottom of the flue can be fixed on a girder through slidable supports. Compared with the prior art, the structure has the advantages that the structure arrangement can be simplified, the steel usage amount can be reduced, stress is clear, and the structure is safe and reliable.

Description

A kind of inclination flue structure

Technical field

The utility model relates to environmental protection technical field, and particularly a large amount of flue gases after heat power plant boiler burning need drain into Benitration reactor in the process of atmosphere through chimney and be exported to this section of inclination or the horizontal steel flue structure before boiler air preheater import.

Background technology

In prior art, Benitration reactor is exported to this section of inclination before boiler air preheater import or horizontal flue as shown in Figure 1 to Figure 3, basic adopt the requirements such as intensity, rigidity that meet flue 1 wallboard along the transverse stiffener 2 of flue 1 cross-sectional direction, the spacing of transverse stiffener 2 is generally 0.7 ~ 0.9m, when flue 1 sectional dimension is when larger, in transverse stiffener 2 domestic demands, add internal overarm support 3.For guaranteeing the stable of the flue 1 framework compressive region edge of a wing, many longitudinal stiffeners of cloth 4 along between flue 1 direction.The vertical load of inclination (comprising level) flue, comprise that the weight such as wallboard, framework, insulation material and dust stratification are all passed to and moved towards parallel many root architectures beam 5 with flue 1 and bear by the bottom of transverse stiffener 2, the spacing spacing general and internal overarm support 3 of structural beams 5 is close, and structural beams 5 is bearing on the many girders 7 vertical with it again.

The traditional scheme steel quantity consumption of above-mentioned this densely covered channel-section steel or i-beam structure is larger, structural configuration and structure are more complicated, and stress performance is poor, it can not be delivered to integrally-built vertical load in two side wall panels structure, and needing to rely on the structural beams 5 under it to pass to again girder 7, load is even not, stressed indefinite.

Summary of the invention

For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of inclination flue structure.It can be arranged by simplified structure, reduces rolled steel dosage, has stressed clear and definite, safe and reliable feature simultaneously.

In order to reach foregoing invention object, the technical solution of the utility model realizes as follows:

An inclination flue structure, it is exported between boiler air preheater import at Benitration reactor.It comprises that cross section is the flue of rectangle, on the outer wall of flue along between flue cross-sectional direction many transverse stiffeners of cloth, transverse stiffener inside is equipped with many internal overarm supports.On the outer wall of flue along between flue direction many longitudinal stiffeners of cloth.Its design feature is, between the transverse stiffener of described flue and internal overarm support, diagonal brace is set.The below that is positioned at the parts transversely ribbed stiffener of flue bottom is fixed on girder by Slidable support.

In above-mentioned inclination flue structure, the spacing between described each transverse stiffener is about 2m, and it is 0.7 ~ 0.9m that each longitudinal stiffener adopts angle bar storeroom distance.

The utility model, owing to having adopted said structure, arranges diagonal brace between transverse stiffener and internal overarm support, and framework is changed into truss, thereby can significantly improve integrally-built bearing capacity.The utility model tilts, and (comprising level) steel flue structure is stressed has clearly reliably saved structural beams 5, and the layout that simplifies the structure, significantly reduces rolled steel dosage.

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of prior art medium dip flue;

Fig. 2 is prior art medium dip flue structure schematic diagram;

Fig. 3 is the right view of Fig. 2;

Fig. 4 is schematic perspective view of the present utility model;

Fig. 5 is structural representation of the present utility model;

Fig. 6 is the right view of Fig. 5.

The specific embodiment

Referring to Fig. 4 to Fig. 5, the utility model comprises that cross section is the flue 1 of rectangle.On the outer wall of flue 1, along between flue 1 cross-sectional direction, many spacing of cloth are about the transverse stiffener 2 of 2m, and transverse stiffener 2 inside are equipped with many internal overarm supports 3.The longitudinal stiffener 4 that on the outer wall of flue 1, many spacing of cloth are 0.7 ~ 0.9m along between flue 1 direction, longitudinal stiffener 4 adopts angle bar material.Between the transverse stiffener 2 of flue 1 and internal overarm support 3, diagonal brace 6 is set.The below that is positioned at the parts transversely ribbed stiffener 2 of flue 1 bottom is fixed on girder 7 by Slidable support 8.

The utility model arranges diagonal brace 6 between transverse stiffener 2 and internal overarm support 3, and framework is changed into truss, thereby the vertical load of flue 1 framework carrying can be conveyed in flue 1 two side wall panels.Therefore the spacing of transverse stiffener 2 can be enlarged to by 0.7 original ~ 0.9m 2m left and right, has reduced rolled steel dosage.For meeting the requirement such as intensity, rigidity of wallboard, the longitudinal stiffener 4 that the utility model is 0.7 ~ 0.9m at the upper and lower of flue 1 and dual side-edge setting space, the longitudinal stiffener 4 of angle bar material is finally passed to girder 7 by the load action of wallboard to truss and by end walls plate structure.

Claims

1. an inclination flue structure, it is exported between boiler air preheater import at Benitration reactor, it comprises that cross section is the flue (1) of rectangle, on the outer wall of flue (1) along between flue (1) cross-sectional direction many transverse stiffeners of cloth (2), transverse stiffener (2) inside is equipped with many internal overarm supports (3), on the outer wall of flue (1) along between flue (1) direction many longitudinal stiffeners of cloth (4), it is characterized in that, between the transverse stiffener (2) of described flue (1) and internal overarm support (3), diagonal brace (6) is set, the below that is positioned at the parts transversely ribbed stiffener (2) of flue (1) bottom is fixed on girder (7) by Slidable support (8).

2. inclination flue structure according to claim 1, is characterized in that, the spacing between described each transverse stiffener (2) is 2m, and it is 0.7 ~ 0.9m that each longitudinal stiffener (4) adopts angle bar storeroom distance.