CN217235552U

CN217235552U - Rear arch water-cooled wall of garbage power generation waste heat boiler

Info

Publication number: CN217235552U
Application number: CN202123407744.XU
Authority: CN
Inventors: 陆亚清; 徐燕; 许杰; 陆海斌
Original assignee: Wuxi Huadong Xifeng Boiler Technology Co ltd
Current assignee: Wuxi Huadong Xifeng Boiler Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-19
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a water-cooled wall of waste heat boiler rear arch of garbage power generation, comprising a water tank, the bottom fixedly connected with of water tank is a plurality of water-cooled wall pipes, a plurality of be equidistant linear array distribution between the water-cooled wall pipe, the bottom fixedly connected with communicating pipe of water-cooled wall pipe, adjacent two be provided with the band steel between the water-cooled wall pipe, welded connection between band steel and the water-cooled wall pipe, one side of water-cooled wall pipe is provided with two sets of symmetrically distributed slope pin and vertical pin; above-mentioned neotype waste heat power generation exhaust-heat boiler is back to encircle the water-cooling wall through setting up water tank and water-cooling wall pipe, and the water-cooling wall pipe is provided with a plurality ofly, and a plurality of water-cooling wall pipe combinations form the water-cooling wall, encircle after replacing adiabatic through the water-cooling wall, and the water-cooling wall can absorb the heat in the boiler furnace to play the effect that reduces boiler temperature, simultaneously, can also realize the waste heat recovery to temperature in the boiler, avoided the inside coking of boiler, improved the time of boiler steady operation.

Description

Rear arch water-cooled wall of garbage power generation waste heat boiler

Technical Field

The utility model relates to an encircle behind the boiler, especially relate to an encircle water-cooling wall behind garbage power waste heat boiler.

Background

The garbage power generation and heat supply boiler is a boiler for generating power and supplying heat by using municipal domestic garbage. To solve the problem of environmental pollution caused by heat supply boilers and to improve air quality, the state has decided to rapidly band regional boilers and decentralized boilers year by year.

The traditional waste heat boiler rear arch is made of refractory castable and is heat-insulated, but along with the continuous rise of the heat value of the waste in recent years, the heat-insulated rear arch is not suitable any more, and the heat-insulated rear arch can cause the overhigh temperature of a hearth, cause the serious coking of the hearth and influence the continuous operation time of the boiler.

Therefore, it is necessary to invent a water-cooled wall of a rear arch of a garbage power waste heat boiler to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a water-cooling wall is encircleed behind garbage power waste heat boiler to it is difficult to reduce the too high problem of boiler furnace temperature to encircle after solving among the prior art adiabatic.

To achieve the purpose, the utility model adopts the following technical proposal:

a water wall of a garbage power generation waste heat boiler rear arch comprises a water tank, wherein the bottom end of the water tank is fixedly connected with a plurality of water wall tubes, the water wall tubes are distributed in an equidistant linear array, the bottom ends of the water wall tubes are fixedly connected with a communicating pipe, a flat steel is arranged between every two adjacent water wall tubes, the flat steel is welded with the water wall tubes, one side of each water wall tube is provided with two groups of symmetrically distributed inclined pins and vertical pins, the inclined pins and the vertical pins are distributed in a staggered manner, the inclined pins on one side of each two adjacent water wall tubes are distributed in a staggered manner, the flat steel comprises a steel plate, two sides of the steel plate are fixedly connected with an attaching plate, the attaching plate is of an arc structure, one side of the attaching plate is fixedly connected with a plurality of convex blocks, the convex blocks are of an arc structure, and one side of the attaching plate is provided with a plurality of grooves, the lug is matched with the groove.

As a further improvement of the scheme, a plurality of strip-shaped through grooves are formed in the front side face of the steel plate in a penetrating mode, and the strip-shaped through grooves are distributed in an equidistant linear array mode.

As a further improvement of the scheme, the notch of the strip-shaped through groove is fixedly connected with an extension plate which is of a U-shaped structure.

As a further improvement of the scheme, one side of the extension plate, which is close to the steel plate, is fixedly connected with a plurality of heat conduction fins which are distributed in a rectangular array.

As a further improvement of the scheme, the heat-conducting fins are arranged in a diamond structure, and included angles are formed between the heat-conducting fins and the extension plate.

As a further improvement of the scheme, the water wall tube is arranged to be of an inclined structure, and the inclination angle of the water wall tube is 38 degrees.

The beneficial effects of the utility model are that, compared with the prior art novel garbage power waste heat boiler after encircle through setting up water tank and water wall pipe, the water wall pipe is provided with a plurality ofly, a plurality of water wall pipe combinations form the water wall, encircle after replacing adiabatic through the water wall, the water wall can absorb the heat in the boiler furnace to play the effect that reduces boiler temperature, simultaneously, can also realize the waste heat recovery to temperature in the boiler, avoided the inside coking of boiler, improved the time of boiler steady operation.

Drawings

Fig. 1 is a schematic side view of the overall structure of a rear arch of a novel garbage power waste heat boiler according to an embodiment of the present invention;

fig. 2 is a schematic front view of the overall structure of a rear arch of a novel waste heat boiler for generating electricity from garbage according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing the positional relationship between the water wall tube and the flat steel of the rear arch of the novel garbage power waste heat boiler according to the embodiment of the present invention;

fig. 4 is a schematic view of a vertical pin structure of a rear arch of a novel garbage power waste heat boiler provided by the embodiment of the invention.

Fig. 5 is a schematic top view of a vertical pin structure of a rear arch of a garbage power waste heat boiler according to an embodiment of the present invention.

Fig. 6 is a schematic perspective view of a flat steel structure of a rear arch of a novel garbage power waste heat boiler according to an embodiment of the present invention.

Fig. 7 is a schematic side view of a flat steel structure of a rear arch of a novel garbage power waste heat boiler according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the drawings.

Referring to fig. 1 to 7, in the embodiment, a rear arch water wall of a waste heat boiler for garbage power generation comprises a water tank 1, a plurality of water wall tubes 2 are fixedly connected to the bottom end of the water tank 1, the plurality of water wall tubes 2 are distributed in an equidistant linear array, a communicating pipe 3 is fixedly connected to the bottom end of each water wall tube 2, the communicating pipe 3 can communicate the plurality of water wall tubes 2 with each other, further, circulation of cooling water can be achieved, flat steel 4 is arranged between every two adjacent water wall tubes 2, the flat steel 4 is connected with the water wall tubes 2 in a welding mode, two groups of inclined pins 5 and vertical pins 6 which are symmetrically distributed are arranged on one side of each water wall tube 2, the inclined pins 5 and the vertical pins 6 are distributed in a staggered mode, the inclined pins 5 on one side of each two adjacent water wall tubes 2 are distributed in a staggered mode, and the inclined pins 5 are matched with the vertical pins 6, so that the positions between the water wall tubes 2 and the inner wall of the boiler can be fixed;

specifically, the flat steel 4 comprises a steel plate 7, two sides of the steel plate 7 are fixedly connected with attachment plates 8, the attachment plates 8 are arranged to be arc-shaped structures, the attachment plates 8 can be attached to the side wall of the water wall tube 2, one side of one attachment plate 8 is fixedly connected with a plurality of bumps 9, the bumps 9 are arranged to be arc-shaped structures, one side of the other attachment plate 8 is provided with a plurality of grooves 10, the bumps 9 are matched with the grooves 10, and the bumps 9 are matched with the grooves 10, so that the connection strength between two adjacent flat steels 4 can be improved;

more specifically, a plurality of strip-shaped through grooves 11 are formed in the front side surface of the steel plate 7 in a penetrating manner, the strip-shaped through grooves 11 are distributed in an equidistant linear array manner, an extension plate 12 is fixedly connected to the notch of each strip-shaped through groove 11, the extension plate 12 is set to be in a U-shaped structure, a plurality of heat conduction fins 13 are fixedly connected to one side, close to the steel plate 7, of the extension plate 12, the plurality of heat conduction fins 13 are distributed in a rectangular array manner, the heat conduction fins 13 are matched with the extension plate 12 to increase the contact area between the steel plate 7 and the gas in the hearth, the heat conduction fins 13 are set to be in a diamond structure, the contact area between the heat conduction fins 13 and the gas in the hearth can be increased due to the inclined arrangement of the heat conduction fins 13, an included angle is formed between the heat conduction fins 13 and the extension plate 12, the water wall tube 2 is set to be in an inclined structure, the inclination angle of the water wall tube 2 is 38 degrees, the inclined arrangement of the water wall tube 2 can effectively increase the contact area between the flue gas in the hearth and the water wall tube 2, thereby improving the absorption efficiency of the water wall tube 2 to the temperature in the boiler.

The novel work flow of the rear arch of the garbage power waste heat boiler comprises the following steps:

1) when the device is used, cooling water is arranged in the water tank 1, the water in the water tank 1 is conveyed into the water cooling wall pipe 2 through components such as a pressure pump and the like, the cooling water flows in the cooling wall pipe 2 and the communicating pipe 3, when the temperature in the hearth of the boiler rises, the flat steel 4 and the water cooling wall pipe 2 absorb the temperature in the hearth of the boiler and transmit the temperature to the cooling water in a heat transfer mode, and the cooling water is heated while absorbing heat, so that the temperature in the hearth of the boiler is reduced, the waste heat recovery is realized, and the stable operation time of the boiler is further improved;

2) this device is when the installation, top and 1 welded connection of water tank with a plurality of water wall pipe 2, and with water wall pipe 2's bottom and 3 welded connection communicating pipe, then place a plurality of band steel 4 between two adjacent water wall pipe 2 in proper order, make binding plate 8 laminate mutually with water wall pipe 2's lateral wall, make simultaneously in the lug 9 on one binding plate 8 inserts the recess 10 on another binding plate 8, then weld two adjacent binding plate 8 on water wall pipe 2, can accomplish being connected between band steel 4 and the water wall pipe 2, fix the side at water wall pipe 2 respectively with a plurality of angle pin 5 and perpendicular pin 6, and fix the other end at the furnace inner wall of boiler with angle pin 5 and perpendicular pin 6, can accomplish the installation of device.

The above embodiments have only been illustrated the basic principle and characteristics of the present invention, the present invention is not limited by the above embodiments, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and modifications all fall into the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A water wall is arched behind a garbage power generation waste heat boiler, which comprises a water tank and is characterized in that the bottom end of the water tank is fixedly connected with a plurality of water wall tubes, the plurality of water wall tubes are distributed in an equidistant linear array, the bottom ends of the water wall tubes are fixedly connected with a communication pipe, a flat steel is arranged between every two adjacent water wall tubes, the flat steel is connected with the water wall tubes in a welding manner, one side of each water wall tube is provided with two groups of symmetrically distributed inclined pins and vertical pins, the inclined pins and the vertical pins are distributed in a staggered manner, the inclined pins on one side of each two adjacent water wall tubes are distributed in a staggered manner, the flat steel comprises a steel plate, two sides of the steel plate are both fixedly connected with an attaching plate, the attaching plate is arranged in an arc structure, one side of one attaching plate is fixedly connected with a plurality of convex blocks, and the convex blocks are arranged in an arc structure, and a plurality of grooves are formed in one side of the other one of the binding plates, and the convex blocks are matched with the grooves.

2. The refuse power generation and waste heat boiler rear arch water-cooled wall according to claim 1, wherein a plurality of strip-shaped through grooves are formed in the front side surface of the steel plate in a penetrating manner, and the plurality of strip-shaped through grooves are distributed in an equidistant linear array.

3. The refuse power generation and waste heat boiler rear arch water-cooled wall according to claim 2, wherein an extension plate is fixedly connected to a notch of the strip-shaped through groove, and the extension plate is arranged to be of a U-shaped structure.

4. The refuse power generation and waste heat boiler rear arch water-cooled wall according to claim 3, wherein one side of the extension plate close to the steel plate is fixedly connected with a plurality of heat conduction fins which are distributed in a rectangular array.

5. The refuse power generation and waste heat boiler rear arch water-cooled wall according to claim 4, wherein the heat conduction fins are arranged in a diamond structure, and an included angle is formed between the heat conduction fins and the extension plate.

6. The refuse power generation waste heat boiler rear arch water wall according to claim 5, wherein the water wall pipe is arranged in an inclined structure, and the inclination angle of the water wall pipe is 38 degrees.