CN112413608A

CN112413608A - Flexible sealing structure between boiler and incinerator

Info

Publication number: CN112413608A
Application number: CN202010597451.3A
Authority: CN
Inventors: 姚晨阳
Original assignee: Wuxi Huaguang Environment and Energy Group Co Ltd
Current assignee: Wuxi Huaguang Environment and Energy Group Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-26

Abstract

The invention relates to the technical field of waste incineration exhaust-heat boilers, in particular to a flexible sealing structure between a boiler and an incinerator, which has the advantages of simple structure, small size, low cost and convenience in later maintenance, and comprises a boiler furnace wall and an incinerator furnace wall, wherein an incinerator furnace shell is arranged outside the incinerator furnace wall, and a water-cooled wall is arranged on the boiler furnace wall.

Description

Flexible sealing structure between boiler and incinerator

Technical Field

The invention relates to the technical field of waste incineration exhaust-heat boilers, in particular to a flexible sealing structure between a boiler and an incinerator.

Background

At present, in a waste incineration power plant, a waste heat boiler is positioned at the upper part of a waste incinerator, and steam is generated by utilizing the heat of smoke discharged by the waste incinerator and is an integral part of the power plant.

At present, most of the mainstream waste incineration waste heat boilers are in a hanging structure, the expansion dead points in the height direction are located at the top of the boiler, and the boiler freely expands downwards. The lower part of the boiler has very large downward expansion in the height direction during operation, and has certain expansion in the left-right and front-back directions; the incinerator is in a heat insulation mode and is supported on the steel frame, a small amount of three-way expansion amount can be generated in the operation process, the incinerator and the boiler are expanded in the left and right directions, the front and back directions and the up and down directions in the operation process, the up and down expansion directions are very large, if a general non-metal expansion joint structure needs to absorb the large three-way expansion amount, the structure size of the general non-metal expansion joint structure is also very large, the cost is high, and the later maintenance is inconvenient.

Disclosure of Invention

The invention provides a flexible sealing structure between a boiler and a garbage incinerator, which aims to solve the problems of large size, high cost and inconvenient later maintenance of the sealing structure between the existing waste heat boiler and the garbage incinerator.

The technical scheme is as follows: the utility model provides a flexible seal structure between boiler and burning furnace, its includes boiler furnace wall and burns burning furnace wall, it is provided with and burns burning furnace shell to burn burning furnace wall outside, install the water-cooled wall on the boiler furnace wall, its characterized in that, the welding has sealed folded plate on the water-cooled wall, it has the closing plate to burn to weld on the furnace shell, sealed folded plate with connect through flexible fiber spare between the closing plate, flexible fiber spare inboard is provided with first aluminium silicate cotton, the outside parcel of first aluminium silicate cotton has stainless wire net, burn burning furnace wall with it has second aluminium silicate cotton and leaves the dilatation joint to fill in between the boiler furnace wall.

The flexible fiber piece is further characterized in that the flexible fiber piece is tightly pressed and fixed on the sealing folded plate and the sealing plate through a pressing plate and a pressing block, the pressing plate is installed on the sealing folded plate and the sealing plate through a fastening piece, and the pressing block is located between the pressing plate and the flexible fiber piece.

After the invention is adopted, the flexible fiber part is utilized to absorb the extremely large downward expansion amount and the expansion amount in other directions of the boiler, and the aluminum silicate cotton is matched to play a role in protection and sealing, so that the structure is simple, the later maintenance is convenient, the occupation of a larger space is not needed, the size is small, and the cost is low.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged sectional view taken along line A-A of FIG. 1;

fig. 3 is an enlarged view of the cross section B-B in fig. 1.

Detailed Description

Referring to fig. 1, fig. 2 and fig. 3, a flexible sealing structure between a boiler and an incinerator, which includes a boiler wall 9 and an incinerator wall 10, an incinerator shell 8 is arranged outside the incinerator wall 10, a water-cooled wall 7 is installed on the boiler wall 9, a sealing folded plate 1 is welded on the water-cooled wall 7, a sealing plate 2 is welded on the incinerator shell 8, the sealing folded plate 1 is connected with the sealing plate 2 through a flexible fiber piece 3, a first aluminum silicate wool 11 is arranged on the inner side of the flexible fiber piece 3, a stainless steel wire mesh is wrapped outside the first aluminum silicate wool 11, the sealing folded plate 1 and the sealing plate 2 are fixed, which plays a role in isolating high temperature and protecting the flexible fiber piece 3, a second aluminum silicate wool 12 is filled between the incinerator wall 10 and the boiler wall 9 and leaves an expansion gap, the second aluminum silicate wool 12 plays a role in ensuring the sealing performance of the boiler wall and reducing the leakage of flue gas of the boiler.

The flexible fiber member 3 is pressed and fixed on the sealing folded plate 1 and the sealing plate 2 by the pressing plate 4 and the pressing block 5, the pressing plate 4 is installed on the sealing folded plate 1 and the sealing plate 2 through the fastening piece 6, and the pressing block 5 is located between the pressing plate 4 and the flexible fiber member 3.

The sealing structure of the invention not only plays a role in normal sealing between the waste heat boiler and the incinerator, but also can well absorb the three-way expansion amount between the incinerator and the waste heat boiler, and meanwhile, the integrated design of the expansion joint (namely the flexible fiber part) and the boiler sealing not only saves space, but also is convenient to maintain, and is a good flexible sealing structure of the waste heat boiler.

Claims

1. The utility model provides a flexible seal structure between boiler and burning furnace, its includes boiler furnace wall and burns burning furnace wall, it is provided with and burns burning furnace shell to burn burning furnace wall outside, install the water-cooled wall on the boiler furnace wall, its characterized in that, the welding has sealed folded plate on the water-cooled wall, it has the closing plate to burn to weld on the furnace shell, sealed folded plate with connect through flexible fiber spare between the closing plate, flexible fiber spare inboard is provided with first aluminium silicate cotton, the outside parcel of first aluminium silicate cotton has stainless wire net, burn burning furnace wall with it has second aluminium silicate cotton and leaves the dilatation joint to fill in between the boiler furnace wall.

2. A flexible sealing structure between a boiler and an incinerator according to claim 1, wherein said flexible fiber member is press-fixed to said sealing flap and said sealing plate by a pressing plate and a pressing block, said pressing plate is attached to said sealing flap and said sealing plate by a fastening member, and said pressing block is located between said pressing plate and said flexible fiber member.