CN217899938U

CN217899938U - Air preheater with ash removal function

Info

Publication number: CN217899938U
Application number: CN202222311948.1U
Authority: CN
Inventors: 徐笑难
Original assignee: Zhejiang Lanxing Environmental Protection Equipment Co ltd
Current assignee: Zhejiang Lanxing Environmental Protection Equipment Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-11-25
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a from air preheater of taking deashing, which comprises an outer shell, heat exchange assembly, gas inlet, exhanst gas outlet, air intlet and air outlet, heat exchange assembly includes the baffle, lower baffle and vertical a plurality of rectangular pipes of fixing between last baffle and lower baffle, air intlet and air outlet aim at the rectangular pipe setting, go up the through-hole that all is equipped with the cooperation rectangular pipe on baffle and the lower baffle, the upper and lower end of rectangular pipe communicates with gas inlet and exhanst gas outlet respectively, the top of shell is equipped with the sound wave deashing ware, the sound wave deashing ware is located the inboard of gas inlet, and the upper end of rectangular pipe is aimed at to the bottom of sound wave deashing ware. The utility model discloses installed the sound wave deashing ware of aiming at the rectangular pipe in the inboard of flue gas import, can realize online automatic deashing, changed the pipe among the heat exchange assemblies into the rectangular pipe in addition, the rectangular pipe wall can vibrate for sound wave deashing ware during operation, can effectively clear away the deposition on the pipe wall, can improve flue gas waste heat recovery efficiency, realizes energy saving and consumption reduction purpose.

Description

Air preheater with ash removal function

Technical Field

The utility model relates to a flue gas waste heat recovery equipment especially relates to an air preheater from taking the deashing.

Background

The air preheater is used as a flue gas waste heat recovery device and is usually used in occasions where a large amount of flue gas is generated; because the flue gas contains dust, the heat transfer surface of the air preheater often influences the heat transfer effect because of the dust deposition, in addition, the air preheater commonly used at present uses a round pipe as a medium (heat exchange assembly), and the dust deposition on the pipe wall can not be avoided because of the rigidity characteristic of the round pipe.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the defect that exists among the above-mentioned prior art and not enough, the utility model provides an inboard sound wave deashing ware of aiming at the rectangular pipe of having installed of flue gas import, can realize online automatic deashing, the rectangular pipe has been changed into with the pipe among the heat exchange assemblies in addition, the pipe wall of rectangular pipe is dull and stereotyped, therefore, the dull and stereotyped vibration that can take place of sound wave deashing ware during operation, can effectively clear away the deposition on the pipe wall, thereby can improve flue gas waste heat recovery efficiency, realize the air preheater of energy saving and consumption reduction purpose from taking the deashing.

The technical scheme of the utility model: the utility model provides a from air preheater of taking deashing, includes the shell, sets up heat exchange assembly in the shell and sets up flue gas inlet, exhanst gas outlet, air intlet and the air outlet on the shell, heat exchange assembly includes baffle, lower baffle and a plurality of rectangular pipes of vertical fixing between last baffle and lower baffle, air intlet and air outlet aim at the rectangular pipe setting, go up the through-hole that all is equipped with the cooperation rectangular pipe on baffle and the lower baffle, the upper and lower end of rectangular pipe communicates with flue gas inlet and exhanst gas outlet respectively, the top of shell is equipped with the sound wave deashing ware, the sound wave deashing ware is located flue gas inlet's inboard, and the upper end of rectangular pipe is aimed at to the bottom of sound wave deashing ware.

The utility model discloses installed the sound wave deashing ware of aiming at the rectangular pipe in the inboard of flue gas import, can realize online automatic deashing, changed the pipe among the heat exchange assemblies into the rectangular pipe in addition, the pipe wall of rectangular pipe is dull and stereotyped, consequently, the dull and stereotyped vibration that can take place of sound wave deashing ware during operation can effectively clear away the deposition on the pipe wall, can improve flue gas waste heat recovery efficiency to realize energy saving and consumption reduction purpose.

Preferably, the upper partition plate and the lower partition plate divide the interior of the outer shell into an upper cavity, a middle cavity and a lower cavity, the flue gas inlet is located at one side of the upper cavity, the flue gas outlet is located at one side of the lower cavity, and the flue gas outlet and the flue gas inlet are located at opposite sides.

The structure ensures compact structure and reasonable layout, and is convenient for the flue gas inlet to enter the flue gas and the flue gas outlet to exit the flue gas.

Preferably, the rectangular pipe is located inside the middle cavity, the air inlet and the air outlet are both arranged on the same side of the middle cavity, and the air inlet is located below the air outlet.

The structure is convenient for cold air to enter the air inlet and hot air to exit from the air outlet.

Preferably, the top surface slope of shell sets up, gas inlet's top surface level sets up, the top surface highest position of shell aligns with gas inlet's top surface, gas inlet's bottom surface slope sets up, the top surface inclination angle of shell and gas inlet's bottom surface inclination angle phase-match.

The structure further facilitates the flue gas to enter the upper cavity from the flue gas inlet.

Preferably, the top surface of the fume outlet is obliquely arranged, the inclination angle of the top surface of the fume outlet is matched with the inclination angle of the bottom surface of the fume inlet, and the bottom surface of the fume outlet is horizontally arranged.

The structure further facilitates the smoke to be discharged out of the lower cavity from the smoke outlet.

Preferably, the other side of the lower cavity is provided with an ash removal port, and the lowest position of the ash removal port is lower than that of the flue gas outlet.

The structure facilitates dust removal and prevents dust from falling and accumulating in the lower cavity.

Preferably, the rectangular tubes are arranged in an array between the upper partition plate and the lower partition plate, and the orientation of the air inlet, the orientation of the smoke inlet and the orientation of the smoke outlet are staggered.

The structure is convenient for the connection of the external pipeline.

Drawings

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

fig. 2 is a schematic front view of the present invention;

fig. 3 is a partially open top view of the present invention;

in the figure, 1, a shell, 2, a flue gas inlet, 3, a flue gas outlet, 4, an air inlet, 5, an air outlet, 6, a rectangular pipe, 7, an upper partition plate, 8, a lower partition plate, 9, a sound wave ash remover and 10, an ash removing opening are arranged.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1-3, an air preheater with ash removal function includes a housing 1, a heat exchange assembly disposed in the housing 1, and a flue gas inlet 2, a flue gas outlet 3, an air inlet 4 and an air outlet 5 disposed on the housing 1. Heat exchange assemblies includes baffle 7, baffle 8 and vertical a plurality of rectangular pipes 6 of fixing between baffle 7 and lower baffle 8 down at last baffle 7, air intlet 4 and air outlet 5 aim at rectangular pipe 6 and set up, go up the through-hole that all is equipped with cooperation rectangular pipe 6 on baffle 7 and the lower baffle 8, rectangular pipe 6 last lower extreme communicates with 2 and 3 with exhanst gas outlet of flue gas inlet respectively, the top of shell 1 is equipped with sound wave deashing ware 9, sound wave deashing ware 9 is located 2 inboard of flue gas inlet, and the upper end of rectangular pipe 6 is aimed at to the bottom of sound wave deashing ware 9. The inner part of the shell 1 of the gas generator 8 is divided into an upper cavity, a middle cavity and a lower cavity by an upper partition plate 7 and a lower partition plate, the flue gas inlet 2 is positioned at one side of the upper cavity, the flue gas outlet 3 is positioned at one side of the lower cavity, and the flue gas outlet 3 and the flue gas inlet 2 are positioned at the opposite sides. Rectangular pipe 6 is located the inside of well cavity, and air inlet 4 and air outlet 5 all set up in the same one side of well cavity, and air inlet 4 is located the below of air outlet 5. The top surface slope of shell 1 sets up, and the top surface level of gas inlet 2 sets up, and the top surface highest position of shell 1 aligns with the top surface of gas inlet 2, and the bottom surface slope of gas inlet 2 sets up, the top surface inclination of shell 1 and gas inlet 2's bottom surface inclination phase-match. The top surface of the smoke outlet 3 is obliquely arranged, the inclination angle of the top surface of the smoke outlet 3 is matched with the inclination angle of the bottom surface of the smoke inlet 2, and the bottom surface of the smoke outlet 3 is horizontally arranged. The other side of the lower cavity is provided with an ash removal port 10, and the lowest position of the ash removal port 10 is lower than that of the flue gas outlet 3. Rectangular tubes 6 are arranged in an array between an upper partition 7 and a lower partition 8, and the orientation of the air inlets 4, the orientation of the flue gas inlets 2 and the orientation of the flue gas outlets 3 are staggered.

When the utility model works, the smoke inlet is connected with the discharge port of the high-temperature smoke discharging device through a pipeline, the smoke outlet is connected with the smoke discharging ports such as a discharging chimney and the like through a pipeline, and the air inlet and the air outlet are respectively connected with the air blower and the hot air using device or place through pipelines; high-temperature flue gas enters the upper cavity from the flue gas inlet, then passes through the rectangular pipe of the middle cavity for heat exchange, and finally is discharged from the flue gas outlet of the lower cavity; cold air enters the middle cavity from the air inlet through the air blower and the pipeline, exchanges heat with high-temperature flue gas in the rectangular pipe, and then hot air discharged from the air outlet is conveyed to other equipment or places needing the hot air through the pipeline, so that the waste heat of the flue gas is recycled; certain vibration can take place for the flat-plate-shaped rectangular pipe wall of sound wave deashing ware during operation, can effectively clear away the inboard deposition of rectangular pipe wall, in addition, can carry out periodic cleaning to the cavity inside through removing the ash mouth, in time discharge the ash that drops to the cavity down.

The utility model provides a sound wave deashing ware is the conventional equipment of market purchase, and its mounting means and working process are conventional means, and the event does not do the detail.

The utility model discloses heat exchange assemblies's pipe has changed into the rectangular pipe in the air preheater to at the inboard sound wave deashing ware of having installed of air preheater flue gas import, can realize online automatic deashing, solved the frequent deposition problem of air preheater. The pipe wall of the rectangular pipe is a flat plate, so that the flat plate can vibrate when the sound wave ash remover works, and the accumulated ash on the pipe wall can be effectively removed. The utility model relates to a very practical energy-saving technology can improve flue gas waste heat recovery efficiency to realize energy saving and consumption reduction.

Claims

1. The utility model provides a from air preheater of taking deashing, includes the shell, sets up heat exchange assemblies in the shell and sets up inlet flue gas, exhanst gas outlet, air intlet and the air outlet on the shell, its characterized in that: the heat exchange assembly comprises an upper partition plate, a lower partition plate and a plurality of rectangular pipes vertically fixed between the upper partition plate and the lower partition plate, the air inlet and the air outlet are aligned to the rectangular pipes, through holes matched with the rectangular pipes are formed in the upper partition plate and the lower partition plate, the upper end and the lower end of each rectangular pipe are communicated with the flue gas inlet and the flue gas outlet respectively, a sound wave ash cleaning device is arranged at the top of the shell and located in the inner side of the flue gas inlet, and the bottom of the sound wave ash cleaning device is aligned to the upper end of each rectangular pipe.

2. The air preheater with ash removal function as claimed in claim 1, wherein: the upper baffle plate and the lower baffle plate separate the interior of the shell into an upper cavity, a middle cavity and a lower cavity, the smoke inlet is positioned on one side of the upper cavity, the smoke outlet is positioned on one side of the lower cavity, and the smoke outlet and the smoke inlet are positioned on the opposite sides.

3. The air preheater with ash removal function as claimed in claim 2, wherein: the rectangular pipe is located inside the middle cavity, the air inlet and the air outlet are both arranged on the same side of the middle cavity, and the air inlet is located below the air outlet.

4. The air preheater with ash removal function as claimed in claim 2, wherein: the top surface slope of shell sets up, gas inlet's top surface level sets up, the top surface highest position of shell aligns with gas inlet's top surface, gas inlet's bottom surface slope sets up, the top surface inclination angle of shell and gas inlet's bottom surface inclination phase-match.

5. The air preheater with ash removal function as claimed in claim 4, wherein: the top surface of the fume outlet is obliquely arranged, the inclination angle of the top surface of the fume outlet is matched with that of the bottom surface of the fume inlet, and the bottom surface of the fume outlet is horizontally arranged.

6. The air preheater with ash removal function as claimed in claim 2, wherein: and the other side of the lower cavity is provided with an ash removal port, and the lowest position of the ash removal port is lower than that of the flue gas outlet.

7. The air preheater with ash removal function as claimed in claim 3, wherein: rectangular pipe array arranges between last baffle and lower baffle, air inlet's orientation, flue gas inlet's orientation and fume outlet's orientation staggered arrangement.