CN216521767U

CN216521767U - Dust collector for air preheater

Info

Publication number: CN216521767U
Application number: CN202122121283.3U
Authority: CN
Inventors: 张宪岭; 崔玉岭; 颜刚; 时标; 梁学东; 张允洲; 葛宗琴
Original assignee: Huaneng Nanjing Jinling Power Generation Co Ltd
Current assignee: Huaneng Nanjing Jinling Power Generation Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-05-13
Anticipated expiration: 2031-09-03

Abstract

The utility model discloses a dust removal device for an air preheater, which comprises a preheater, wherein the top of the preheater is fixedly connected with a water storage tank, one side of the water storage tank is fixedly connected with a water inlet pipe, one side of the preheater is rotatably connected with a rotating shaft, the bottom of the preheater is fixedly connected with a sewage discharge tank, the interior of the preheater is fixedly connected with an obliquely arranged filter plate, the bottom of the preheater positioned on the filter plate is provided with a connector, the connector is positioned above the sewage discharge tank, the outer side wall of the rotating shaft is fixedly connected with a plurality of rotating sleeves, the outer side walls of the rotating sleeves are fixedly connected with a plurality of water spray plates and a plurality of connecting ropes, and one end of each connecting rope, far away from the rotating sleeve, is fixedly connected with a first magnetic block. According to the utility model, through the matching of the rotating sleeve, the water spraying plate, the connecting rope and the first magnetic block and the second magnetic block, the service life of the preheater is prolonged, the dust removal effect is improved, and the time and labor are saved.

Description

Dust collector for air preheater

Technical Field

The utility model relates to the technical field of air preheaters, in particular to a dust removal device for an air preheater.

Background

The air preheater is a heat exchanger which is preheated by using the heat of exhaust gas of a boiler and other devices, has the functions of reducing the temperature of the exhaust gas of the boiler and other devices, improving the heat efficiency, enabling fuel to be easily ignited, stably burning and improving the burning efficiency, is generally called an air preheater for short, is mainly used for a coal-fired power station boiler, and can be divided into a pipe box type and a rotary type, wherein the rotary type is divided into a wind cover rotary type and a heating surface rotary type, the power station boiler commonly adopts the heating surface rotary preheater, and the application in the boiler is generally divided into a two-divided bin type, a three-divided bin type and a four-divided bin type, wherein the four-divided bin type is commonly used in a circulating fluidized bed boiler.

The air heater who uses at present, when sending into the flue gas heat transfer, often can reduce the life of pre-heater in the long term in the middle of the flue gas because of the dust of bringing, the adhesion at the inner wall of pre-heater, and prior art washes through the manual work, and this kind of method not only wastes time and energy, still delays the work of pre-heater, for this reason, provides a dust collector for air heater.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a dust removal device for an air preheater.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a dust removal device for an air preheater comprises a preheater, wherein the top of the preheater is fixedly connected with a water storage tank, one side of the water storage tank is fixedly connected with a water inlet pipe, one side of the preheater is rotatably connected with a rotating shaft, the bottom of the preheater is fixedly connected with a sewage discharge box, an obliquely arranged filter plate is fixedly connected inside the preheater, a connector is arranged at the bottom of the filter plate of the preheater, and the connector is arranged above the sewage discharge box;

the outer side wall of the rotating shaft is fixedly connected with a plurality of rotating sleeves, the outer side wall of each rotating sleeve is fixedly connected with a plurality of water spraying plates and a plurality of connecting ropes, the connecting ropes are far away from the first magnetic block fixedly connected with one end of each rotating sleeve, and the top and the bottom and two sides of the preheater are fixedly connected with the second magnetic blocks.

Preferably, the bottom of the sewage draining box is provided with a sewage draining port, and the filter plate is provided with a plurality of filter holes.

Preferably, the rotation is connected with the turning block in the axis of rotation, the one end fixed connection of inlet tube is in one side of storage water tank, the other end of inlet tube is connected on the turning block, the axis of rotation is located the turning block and sheathes in with the rotation and has seted up a plurality of first connecting holes, the inside of turning block and rotation cover is the intercommunication through the inside of first connecting hole and axis of rotation.

Preferably, the rotary grooves are formed in one side of the preheater and the filter plate, one end of the rotary shaft is rotatably connected to the preheater, and the other end of the rotary shaft is rotatably connected to the filter plate.

Preferably, the bottom of the preheater is located the both sides fixedly connected with L template of connector, the bottom of filter passes through L template fixed connection in the bottom of preheater.

Preferably, a plurality of water spray holes are formed in the outer side wall of the water spray plate, a plurality of second connecting holes are formed in the rotating sleeve located on the water spray plate, and the rotating sleeve is communicated with the inside of the water spray plate through the second connecting holes.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the dust removal device for the air preheater, through the matching of the rotating sleeve, the water spraying plate, the connecting rope, the first magnetic block and the second magnetic block, when smoke enters the preheater, the rotating shaft is driven by air speed and air flow to rotate, water in the water storage tank flows into the rotating shaft through the water inlet pipe, the water is sprayed out through the water spraying holes in the water spraying plate through the rotation of the rotating shaft, meanwhile, the connecting rope, the first magnetic block and the second magnetic block are matched, and the first magnetic block impacts the second magnetic block through the impact of the magnet when rotating.

2. According to the dust removal device for the air preheater, through the matching between the filter plate and the sewage discharge box, the dust on the filter plate slides into the sewage discharge box by utilizing the effects of spraying water onto the filter plate and obliquely arranging the filter plate, so that the dust removal effect is further improved, and the dust removal working efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a dust removing device for an air preheater according to the present invention;

FIG. 2 is a schematic cross-sectional view of a dust removing device for an air preheater according to the present invention;

fig. 3 is a schematic structural view of the rotating shaft.

In the figure: 1 preheater, 2 blow off casees, 3 storage water tanks, 4 inlet tubes, 5 axis of rotation, 501 rotating sleeve, 502 water spray board, 503 connection rope, 504 first magnetic path, 505 second magnetic path, 6 filter.

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.

As shown in figures 1 and 2, the dust removing device for the air preheater comprises a preheater 1, wherein the top of the preheater 1 is fixedly connected with a water storage tank 3, one side of the water storage tank 3 is fixedly connected with a water inlet pipe 4, one side of the preheater 1 is rotatably connected with a rotating shaft 5, one side of the preheater 1 and a filter plate 6 are both provided with rotating grooves, one end of the rotating shaft 5 is rotatably connected to the preheater 1, the other end of the rotating shaft 5 is rotatably connected to the filter plate 6, the rotating shaft 5 is rotatably connected with a rotating block, one end of the water inlet pipe 4 is fixedly connected to one side of the water storage tank 3, the other end of the water inlet pipe 4 is connected to the rotating block, the bottom of the preheater 1 is fixedly connected with a sewage draining box 2, the bottom of the sewage draining box 2 is provided with a sewage draining port, the inside of the preheater 1 is fixedly connected with the filter plate 6 which is obliquely arranged, and the filter plate 6 is provided with a plurality of filter holes, the bottom of the preheater 1 is positioned at two sides of the connecting port and fixedly connected with the L-shaped plates, the bottom of the filter plate 6 is fixedly connected to the bottom of the preheater 1 through the L-shaped plates, the connecting port is formed in the bottom of the preheater 1, the connecting port is positioned above the sewage discharge box 2, and dust on the filter plate 6 slides into the sewage discharge box 2 by utilizing the effects of spraying water onto the filter plate 6 and obliquely arranging the filter plate 6;

as shown in fig. 2 and 3, the outer side wall of the rotating shaft 5 is fixedly connected with a plurality of rotating sleeves 501, the rotating shaft 5 is positioned on the rotating block and the rotating sleeves 501 and is provided with a plurality of first connecting holes, the rotating block and the rotating sleeves 501 are communicated with the inside of the rotating shaft 5 through the first connecting holes, the outer side wall of the rotating sleeves 501 is fixedly connected with a plurality of water spraying plates 502 and a plurality of connecting ropes 503, the outer side wall of the water spraying plates 502 is provided with a plurality of water spraying holes, the rotating sleeves 501 are positioned on the water spraying plates 502 and are provided with a plurality of second connecting holes, the rotating sleeves 501 are communicated with the inside of the water spraying plates 502 through the second connecting holes, one end of the connecting ropes 503 far away from the rotating sleeves 501 is fixedly connected with a first magnetic block 504, the top, the bottom and the two sides of the preheater 1 are fixedly connected with second magnetic blocks 505, when flue gas enters the preheater 1, the rotating shaft 5 is rotated by the driving of wind speed airflow, water in the storage water tank 3 flows into in the axis of rotation 5 through inlet tube 4, rotation through axis of rotation 5, make water pass through the hole for water spraying blowout on the water spray board 502, connect rope 503 simultaneously, cooperation between first magnetic path 504 and the second magnetic path 505, the effect through the magnet striking when first magnetic path 504 rotates, striking second magnetic path 505, through such setting, the effectual dust that gets into in the flue gas that has reduced, make the adhesion drop at the dust of pre-heater 1 inner wall simultaneously, the life of pre-heater 1 has been promoted, the dust removal effect has been improved, time saving and labor saving.

As shown in fig. 1-3, the functional principle of the present invention can be illustrated by the following operation modes: firstly, the water storage tank 3 is opened, water in the water storage tank 3 flows into the rotating shaft 5 through the water inlet pipe 4, at this time, the preheater 1 is operated, when the flue gas enters the preheater 1, the rotating sleeve 501 rotates under the action of the wind speed airflow, the rotating shaft 5 is further rotated, and when the rotating sleeve 501 rotates, the water spraying plate 502 and the connecting rope 503 are driven to rotate, so that the water flowing into the rotating shaft 5 is sprayed out from the water spraying plate 502 by the action of centrifugal force, at the same time, the rotation of the connecting rope 503 drives the first magnetic block 504 to rotate and impact the second magnetic block 505, through the impact effect between the magnets, the dust adhered to the inner wall of the preheater 1 falls down and is blown to the filter plate 6 by the action of the wind speed, and it should be noted that, through the arrangement, the service life of the preheater 1 is prolonged, the dust removal effect is improved, and time and labor are saved;

utilize filter 6 to make the slope setting, on spouting filter 6 by rivers again, make the dust on the filter 6, during the effect through rivers drops into blow off case 2, when the dust in blow off case 2 is full, through opening the drain, discharge, it is that needs the explanation, through such setting, further promoted dust removal effect, promoted the work efficiency who removes dust.

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. The dust removal device for the air preheater comprises a preheater (1) and is characterized in that the top of the preheater (1) is fixedly connected with a water storage tank (3), one side of the water storage tank (3) is fixedly connected with a water inlet pipe (4), one side of the preheater (1) is rotatably connected with a rotating shaft (5), the bottom of the preheater (1) is fixedly connected with a sewage discharge box (2), the interior of the preheater (1) is fixedly connected with a filter plate (6) which is obliquely arranged, a connecting port is formed in the bottom of the filter plate (6) of the preheater (1), and the connecting port is located above the sewage discharge box (2);

the outer side wall of rotation axis (5) is fixedly connected with a plurality of rotation cover (501), and is a plurality of water spray plate (502) of outer side wall fixedly connected with and a plurality of rope (503) of being connected of rotation cover (501), connect rope (503) and keep away from the first magnetic path of one end fixedly connected with (504) of rotation cover (501), the top and the bottom and the equal fixedly connected with second magnetic path (505) in both sides of preheater (1).

2. The dust removing device for the air preheater according to claim 1, wherein a drain outlet is formed at the bottom of the drain box (2), and the filter plate (6) is provided with a plurality of filter holes.

3. The dust removing device for the air preheater according to claim 1, wherein a rotating block is rotatably connected to the rotating shaft (5), one end of the water inlet pipe (4) is fixedly connected to one side of the water storage tank (3), the other end of the water inlet pipe (4) is connected to the rotating block, a plurality of first connecting holes are formed in the rotating shaft (5) and the rotating sleeve (501), and the rotating block and the rotating sleeve (501) are communicated with the rotating shaft (5) through the first connecting holes.

4. The dust removing device for the air preheater according to claim 1, wherein a rotation groove is formed on one side of the preheater (1) and the filter plate (6), one end of the rotation shaft (5) is rotatably connected to the preheater (1), and the other end of the rotation shaft (5) is rotatably connected to the filter plate (6).

5. The dust removing device for the air preheater according to claim 1, wherein the bottom of the preheater (1) is fixedly connected with L-shaped plates at two sides of the connecting port, and the bottom of the filter plate (6) is fixedly connected with the bottom of the preheater (1) through the L-shaped plates.

6. The dust removing device for the air preheater according to claim 1, wherein a plurality of water spraying holes are formed on an outer side wall of the water spraying plate (502), a plurality of second connecting holes are formed on the water spraying plate (502) of the rotating sleeve (501), and the rotating sleeve (501) is communicated with the inside of the water spraying plate (502) through the second connecting holes.