CN110748874A

CN110748874A - Boiler platen superheater

Info

Publication number: CN110748874A
Application number: CN201910964415.3A
Authority: CN
Inventors: 李德民; 周大同; 吴安敏
Original assignee: Jiangsu Zhongke Heavy Industry Co Ltd
Current assignee: Jiangsu Zhongke Heavy Industry Co Ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-02-04

Abstract

The invention discloses a boiler platen superheater in the technical field of boiler equipment, which comprises a connecting header pipe, platen superheater pipes are uniformly welded on the outer wall of the connecting header pipe, a connecting support I and a connecting support II are respectively clamped in the middle and the front side of the bottom of the platen superheater pipes, the first connecting support is not contacted with the second connecting support, the first connecting support comprises a support plate, arc-shaped clamping plates matched with the screen type superheater tubes are uniformly arranged at the top of the support plate, positioning nuts are welded at two ends of the top of the support plate, and positioning screws are vertically arranged in inner cavities of the positioning nuts. The extended position of the positioning screw rod in the positioning nut is adjusted, so that the screen type superheater tube and the wall can be conveniently adjusted to be in a parallel state, and the influence on the normal work of a product due to the installation deflection is reduced.

Description

Boiler platen superheater

Technical Field

The invention relates to the technical field of boiler equipment, in particular to a platen superheater of a boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator. The boiler for supplying hot water is called a hot water boiler, is mainly used for life, and has a small amount of application in industrial production. The boiler for generating steam is called as a steam boiler, often called as a boiler for short, and is widely used for thermal power stations, ships, locomotives and industrial and mining enterprises. The platen superheater is also commonly called a semi-radiation superheater and refers to a heating surface which is arranged at the upper part of a hearth or a smoke window at the outlet of the hearth and is used for receiving direct radiation heat in the furnace and absorbing convection heat of smoke. A large distance is kept between two adjacent screens of the screen type superheater, so that the effects of reducing the temperature of the flue gas at the outlet of the hearth and slag condensation can be achieved, and slag bonding on the rear heating surface can be prevented. Meanwhile, the heat exchanger is also a main component of the heating surface of the modern large boiler superheater.

Most of the existing fixing modes of the screen type superheater are that the screen type superheater is connected into a whole in a steel wire bundling mode, and then the screen type superheater is fixed at a smoke window of a hearth outlet of a boiler through bolts, so that the fixing mode is complicated, and the levelness between the screen type superheater and a wall cannot be adjusted, so that the superheater is installed in a skew state, and the normal work of the superheater is influenced.

Disclosure of Invention

The invention aims to provide a boiler platen superheater, which solves the problems that the fixing mode of the existing platen superheater proposed in the background art is mostly that the platen superheater is connected into a whole in a steel wire bundling mode and then is fixed at a smoke window of a hearth outlet of a boiler through a bolt, the fixing mode is complicated, and the installation of the superheater is in a skew state due to the fact that the levelness between the platen superheater and a wall cannot be adjusted, and the normal operation of the superheater is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: the boiler screen type superheater comprises a connecting header pipe, wherein a screen type superheater pipe is uniformly welded on the outer wall of the connecting header pipe, a first connecting support and a second connecting support are respectively clamped in the middle of the bottom of the screen type superheater pipe and on the front side of the bottom of the screen type superheater pipe, the first connecting support is not in contact with the second connecting support, the first connecting support comprises a support plate, arc-shaped clamping plates matched with the screen type superheater pipe are uniformly arranged on the top of the support plate, positioning nuts are welded on the two ends of the top of the support plate, positioning screws are vertically arranged in the inner cavities of the positioning nuts, the bottom ends of the positioning screws penetrate through the bottom of the support plate, adjusting knobs are welded on the top ends of the positioning screws, a connecting bottom plate is welded at the bottom ends of the positioning screws, fixed jacks are formed in the top of the connecting bottom plate, connecting sleeves are welded, the bottom of the connecting ribbed plate is provided with a connecting jack which penetrates through the top of the connecting ribbed plate.

Preferably, the screen type superheat tubes are arranged in an equidistant mode through U-shaped tubes with the same tube diameter, and two ends of each screen type superheat tube are communicated with the inner cavity of the connecting header pipe.

Preferably, the first connecting support and the second connecting support have the same structure, and the second connecting support and the first connecting support are perpendicular to each other.

Preferably, the arc-shaped clamping plate and the screen type superheater tube are in interference fit, and the arc-shaped clamping plate and the support plate are integrally welded and formed.

Preferably, the positioning nut is connected with the positioning screw rod through mutually matched threads, and the positioning screw rod can slide up and down in an inner cavity of the positioning nut through rotation.

Preferably, the side wall of the inner cavity of the connecting sleeve is uniformly provided with sealing threads, and the inner cavity of the connecting sleeve is provided with a rubber sealing gasket.

Compared with the prior art, the invention has the beneficial effects that: the screen type superheater tube is fixed into a whole through the arc-shaped clamping plate, the structural stability of the screen type superheater tube is improved, the installation of the product in the later period is facilitated, the parallel state between the screen type superheater tube and the wall is conveniently adjusted through adjusting the extending position of the positioning screw rod in the positioning nut, and therefore the influence on the normal work of the product due to the fact that the installation is inclined is reduced.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a schematic view of a connecting support according to the present invention;

FIG. 3 is an enlarged view of portion A of the present invention;

fig. 4 is a bottom isometric view of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-connecting header pipe, 2-screen type superheater tube, 3-connecting support I, 31-supporting plate, 32-arc clamping plate, 33-positioning nut, 34-positioning screw rod, 35-adjusting knob, 36-connecting bottom plate, 37-fixing jack, 4-connecting support II, 5-connecting sleeve, 6-connecting ribbed plate and 7-connecting jack.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the platen superheater for the boiler according to the present invention includes a connection header pipe 1, platen superheater pipes 2 are uniformly welded to the outer wall of the connection header pipe 1, a connection support 3 and a connection support 4 are respectively clamped in the middle and the front side of the bottom of the platen superheater pipes 2, and the connection support 3 is not in contact with the connection support 4.

Combine fig. 1, 2 to show, connection support 3 includes backup pad 31, backup pad 31's top evenly is provided with the arc cardboard 32 with screen type superheater pipe 2 matched with, positioning nut 33 has all been welded at backup pad 31's top both ends, positioning screw 34 is vertically installed to positioning nut 33's inner chamber, and positioning screw 34's bottom runs through backup pad 31's bottom, positioning screw 34's top welding has adjust knob 35, positioning screw 34's bottom welding has connection bottom plate 36, fixed jack 37 has been seted up at connection bottom plate 36's top.

Connecting sleeve 5 has all been welded at the both ends of connecting house steward 1, and the even welding of the bottom of connecting house steward 1 has connecting rib plate 6, and connecting jack 7 has been seted up to connecting rib plate 6's bottom, and connecting jack 7 runs through the top of connecting rib plate 6.

Preferably, the screen type superheat tubes 2 are arranged in an equidistant manner by U-shaped tubes with the same tube diameter, and two ends of each screen type superheat tube 2 are communicated with the inner cavity of the connecting header pipe 1.

Preferably, the first connecting support 3 and the second connecting support 4 are identical in structure, and the second connecting support 4 and the first connecting support 3 are perpendicular to each other, so that the stability of fixing the screen type superheater tube 2 through the first connecting support 3 and the second connecting support 4 is improved.

Preferably, be interference fit between arc cardboard 32 and the screen formula superheater pipe 2, and be integrated welded molding between arc cardboard 32 and the backup pad 31, make things convenient for arc cardboard 32 joint at the outer wall of screen formula superheater pipe 2 motionless, and guarantee the structural strength between arc cardboard 32 and the backup pad 31.

Preferably, the positioning nut 33 and the positioning screw 34 are connected by mutually matched threads, and the positioning screw 34 can slide up and down in the inner cavity of the positioning nut 33 by rotating, so that the position between the screen type superheater tube 2 and the wall body can be conveniently adjusted by adjusting the extending length of the positioning screw 34.

Preferably, the side wall of the inner cavity of the connecting sleeve 5 is uniformly provided with sealing threads, and the inner cavity of the connecting sleeve 5 is provided with a rubber sealing gasket, so that the sealing property between the connecting sleeve 5 and an external pipeline is improved.

One specific application of this embodiment is: when the invention is used, a worker clamps the arc-shaped clamping plate 32 on the outer wall of the screen type superheater tube 2, and the U-shaped tube in the screen type superheater tube 2 can be connected into a whole through the interaction of the connecting support I3 and the connecting support II 4, so that the integral hoisting work in the later installation process is convenient, when the invention is installed, the worker firstly fixes the position of the connecting ribbed plate 6 through the inner cavity of the connecting jack 7 by a bolt, then drives the positioning screw 34 to rotate through manually rotating the adjusting knob 35, adjusts the extending length of the positioning screw 34 from the inner cavity of the positioning nut 33 through the rotation of the positioning screw 34 and the thread action between the positioning screw 34 and the positioning nut 33, so that the screen type superheater tube 2 can be in a parallel state with a wall body, and finally fixes the position of the connecting base plate 36 through the bolt passing through the fixing jack 37, thereby reducing the influence on the normal work of a product due to installation deflection, through the arrangement of the connecting sleeve 5, the sealing connection between the connecting main pipe 1 and an external pipeline is facilitated.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. Boiler platen superheater, its characterized in that: including connecting house steward (1) and being in the even welded screen type superheater pipe (2) of outer wall of connecting house steward (1), the joint has connection support one (3) and connection support two (4) respectively with the front side in the middle of the bottom of screen type superheater pipe (2), and connects support one (3) and connection support two (4) contactless, wherein:

the first connecting support (3) comprises a support plate (31), and arc-shaped clamping plates (32) matched with the screen type superheater tubes (2) are uniformly arranged at the tops of the support plate (31);

positioning nuts (33) are welded at two ends of the top of the supporting plate (31), a positioning screw rod (34) is vertically arranged in an inner cavity of each positioning nut (33), and the bottom end of each positioning screw rod (34) penetrates through the bottom of the supporting plate (31);

an adjusting knob (35) is welded at the top end of the positioning screw rod (34);

a connecting bottom plate (36) is welded at the bottom end of the positioning screw rod (34), and a fixed insertion hole (37) is formed in the top of the connecting bottom plate (36);

two ends of the connecting main pipe (1) are welded with connecting sleeves (5);

the bottom of the connecting header pipe (1) is uniformly welded with connecting rib plates (6);

the bottom of the connecting ribbed slab (6) is provided with a connecting jack (7), and the connecting jack (7) penetrates through the top of the connecting ribbed slab (6).

2. The boiler platen superheater according to claim 1, wherein: the screen type superheat tubes (2) are arranged in an equidistant mode through U-shaped tubes with the same tube diameter, and the two ends of each screen type superheat tube (2) are communicated with the inner cavity of the connecting header pipe (1).

3. The boiler platen superheater according to claim 1, wherein: the connecting support I (3) and the connecting support II (4) are identical in structure, and the connecting support II (4) and the connecting support I (3) are perpendicular to each other.

4. The boiler platen superheater according to claim 1, wherein: the arc-shaped clamping plate (32) and the screen type superheater tube (2) are in interference fit, and the arc-shaped clamping plate (32) and the support plate (31) are integrally welded and formed.

5. The boiler platen superheater according to claim 1, wherein: the positioning nut (33) is connected with the positioning screw rod (34) through mutually matched threads, and the positioning screw rod (34) can slide up and down in an inner cavity of the positioning nut (33) through rotation.

6. The boiler platen superheater according to claim 1, wherein: the inner cavity side wall of the connecting sleeve (5) is uniformly provided with sealing threads, and the inner cavity of the connecting sleeve (5) is provided with a rubber sealing gasket.