CN216693490U

CN216693490U - Boiler water wall lower header fixing structure

Info

Publication number: CN216693490U
Application number: CN202123315977.7U
Authority: CN
Inventors: 周大同; 张月宁
Original assignee: Jiangsu Zhongke Heavy Industry Co ltd
Current assignee: Jiangsu Zhongke Heavy Industry Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-07
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a boiler water wall lower header fixing structure which comprises a barrel, wherein an installation mechanism is arranged on the outer wall of the barrel and consists of an annular fixing piece and an installation seat, the annular fixing piece is welded on the outer wall of the barrel, an annular sliding groove is welded on the outer wall of the annular fixing piece, a sliding block is welded on the installation seat and is in sliding connection with the annular sliding groove, and a positioning hole is formed in the center of the upper surface of the installation seat. According to the fixing structure of the lower header of the boiler water wall, the mounting mechanism is composed of the annular fixing piece and the mounting seat, the annular fixing piece is welded on the outer wall of the cylinder body, the mounting seat is connected in the annular sliding groove formed in the outer wall of the annular fixing piece in a sliding mode through the sliding block, the mounting seat can be pushed to slide on the outer wall of the annular fixing piece in the using process, the position of the mounting seat is adjusted, the mounting seat can be conveniently mounted and fixed on inclined planes with different angles, and the actual using effect of the fixing structure is improved.

Description

Boiler water wall lower header fixing structure

Technical Field

The utility model relates to the technical field of a header fixing structure, in particular to a boiler water wall lower header fixing structure.

Background

In order to improve boiler efficiency, drum boilers are gradually developed into tube boilers to increase a heat transfer area. The boiler water flows into the lower box body from the boiler barrel through the downcomer and is distributed to the tube bundles by the box body, and the water in the tube bundles continuously absorbs heat energy, is collected in the upper box body and then flows back into the boiler barrel. We refer to the upper and lower tanks as the headers or headers. The header (also called header) is an important component of the boiler and is divided into an upper header and a lower header, and the header is mainly used for collecting the working medium or redistributing the working medium to other pipelines through the header, namely collecting, mixing and distributing the working medium, so as to ensure the uniform distribution and uniform heating of the working medium. The lower header is also called as a coke-proof box, is positioned at two sides of the fire grate, is directly contacted with a burning coal layer and has the function that the cooled and coked slag is not bonded with the side wall.

The existing boiler water wall lower header fixing structure generally directly welds and fixes a mounting seat on a barrel, and a lower header is fixed through the mounting seat.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing structure of a lower header of a water wall of a boiler, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: a fixing structure for a lower header of a water-cooled wall of a boiler comprises a cylinder body, wherein an installation mechanism is arranged on the outer wall of the cylinder body;

the installation mechanism comprises annular fixed part and mount pad, annular fixed part welding is on the barrel outer wall, the welding has annular spout on annular fixed part's the outer wall, the welding has the slider on the mount pad, and slider and annular spout sliding connection, mount pad upper surface center department has seted up the locating hole, and the interpolation has the locating pin in the locating hole, the bottom of locating pin runs through the mount pad and extends to the spacing inslot that begins on the annular fixed part outer wall, the bolt hole has been seted up on the mount pad.

As a further description of the above technical solution:

and hemispherical end covers are fixed at two ends of the barrel along the length direction through bolts.

As a further description of the above technical solution:

the outer wall of the cylinder body is in conduction connection with a plurality of small pipe joints, the small pipe joints are divided into two groups, each group of the small pipe joints are located on the same horizontal line, and the distances between two adjacent small pipe joints in the same group are equal.

As a further description of the above technical solution:

the slider is provided with two altogether, and two sliders are symmetrical each other about the vertical midline of mount pad.

As a further description of the above technical solution:

the limiting grooves are provided with a plurality of limiting grooves which are distributed annularly, and the distance between every two adjacent limiting grooves is equal.

The utility model provides a fixing structure for a lower header of a water wall of a boiler. The method has the following beneficial effects:

this boiler water-cooling wall collection box fixed knot under wall constructs, installation mechanism comprises annular mounting and mount pad, annular mounting welds on the barrel outer wall, the mount pad passes through slider sliding connection in the annular spout of seting up on the annular mounting outer wall, in the in-process of using, can promote the mount pad and slide on the annular mounting outer wall, adjust the position of mount pad, be convenient for the mount pad and the inclined plane of different angles install fixedly, improve its actual result of use, further still be provided with the locating pin, after the position control of mount pad is accomplished, through the locating pin of pegging graft in the locating hole, make the bottom of locating pin extend to the spacing inslot of seting up on the annular mounting, alright spacing fixed with accomplishing mount pad and annular mounting.

Drawings

FIG. 1 is a front view of a fixing structure of a lower header of a water wall of a boiler according to the present invention;

FIG. 2 is a schematic structural view of the mounting mechanism of the present invention;

fig. 3 is a schematic structural view of the mounting base of the present invention.

Illustration of the drawings:

1. a barrel; 2. a hemispherical end cap; 3. a small pipe joint; 4. an installation mechanism; 41. a ring-shaped fixing member; 42. a mounting seat; 43. an annular chute; 44. a slider; 45. positioning holes; 46. positioning pins; 47. a limiting groove; 48. bolt holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a boiler water wall lower header fixing structure comprises a cylinder 1, wherein an installation mechanism 4 is arranged on the outer wall of the cylinder 1;

the mounting mechanism 4 is composed of an annular fixing member 41 and a mounting seat 42, the annular fixing member 41 is welded on the outer wall of the barrel 1, an annular sliding groove 43 is welded on the outer wall of the annular fixing member 41, a sliding block 44 is welded on the mounting seat 42, the sliding block 44 is connected with the annular sliding groove 43 in a sliding mode, a positioning hole 45 is formed in the center of the upper surface of the mounting seat 42, a positioning pin 46 is inserted into the positioning hole 45, the bottom end of the positioning pin 46 penetrates through the mounting seat 42 and extends into a limiting groove 47 formed in the outer wall of the annular fixing member 41, and a bolt hole 48 is formed in the mounting seat 42.

And hemispherical end covers 2 are fixed at two ends of the barrel 1 along the length direction through bolts.

The outer wall of the barrel body 1 is in conduction connection with the small pipe joints 3, the small pipe joints 3 are provided with a plurality of joints, the small pipe joints 3 are divided into two groups, the small pipe joints 3 in each group are located on the same horizontal line, and the distance between the two adjacent small pipe joints 3 in the same group is equal.

The sliders 44 are provided in total in two, and the two sliders 44 are symmetrical to each other about a vertical center line of the mount base 42.

The limiting grooves 47 are provided with a plurality of limiting grooves 47, the limiting grooves 47 are distributed annularly, and the distance between every two adjacent limiting grooves 47 is equal.

The working principle is as follows: when this boiler water wall collection case fixed knot constructs uses down, at first according to the position of the installation of reality, promote mount pad 42 and slide in annular spout 43 through slider 44, adjust the position and the angle of mount pad 42, then through pegging graft locating pin 46 in locating hole 45, make the bottom of locating pin 46 extend to the spacing groove 47 of seting up on annular mounting 41 in, alright accomplish the spacing fixed of mount pad 42 and annular mounting 41, this moment alright with 48 cooperation fastening bolts alright with the bolt hole 48 cooperation fastening bolt of seting up on the mount pad 42 with can be to mount pad 42 fixed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A boiler water wall lower header fixing structure comprises a cylinder body (1), and is characterized in that an installation mechanism (4) is arranged on the outer wall of the cylinder body (1);

installation mechanism (4) comprise annular fixed part (41) and mount pad (42), annular fixed part (41) welding is on barrel (1) outer wall, the welding has annular spout (43) on the outer wall of annular fixed part (41), the welding has slider (44) on mount pad (42), and slider (44) and annular spout (43) sliding connection, locating hole (45) have been seted up to mount pad (42) upper surface center department, and have pegged graft in locating hole (45) locating pin (46), the bottom of locating pin (46) runs through in mount pad (42) extends to spacing groove (47) that annular fixed part (41) outer wall began, bolt hole (48) have been seted up on mount pad (42).

2. The boiler water wall lower header fixing structure according to claim 1, wherein hemispherical end covers (2) are bolted to both ends of the cylinder (1) in the length direction.

3. The boiler water wall lower header fixing structure according to claim 1, characterized in that the outer wall of the cylinder (1) is conductively connected with small pipe joints (3), the small pipe joints (3) are provided with a plurality of small pipe joints, the small pipe joints (3) are divided into two groups, each group of the small pipe joints (3) is on the same horizontal line, and the distance between two adjacent small pipe joints (3) in the same group is equal.

4. Boiler water wall lower header fixing structure according to claim 1, characterized in that the sliding blocks (44) are provided in two in number, and the two sliding blocks (44) are symmetrical to each other about a vertical center line of the mounting seat (42).

5. The boiler water wall lower header fixing structure according to claim 1, wherein a plurality of limiting grooves (47) are formed in the limiting groove (47), the limiting grooves (47) are distributed annularly, and the distance between two adjacent limiting grooves (47) is equal.