CN217584523U

CN217584523U - Energy-saving rotation air preheater with function is retrieved in leaking out

Info

Publication number: CN217584523U
Application number: CN202220625147.XU
Authority: CN
Inventors: 陈治华
Original assignee: Hunan Huadian Changde Power Generation Co ltd
Current assignee: Hunan Huadian Changde Power Generation Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-10-14
Anticipated expiration: 2032-03-21

Abstract

The utility model relates to an energy-saving rotation air preheater with function is retrieved in hourglass, including the air preheater body, be provided with the flue gas pipeline on the air preheater body, be provided with fan-shaped closing plate on the air preheater body, the recovery hole has been seted up on the fan-shaped closing plate, the top of fan-shaped closing plate is provided with the collection cover, and the top of collecting the cover is provided with the U-shaped pipe, and the inboard of U-shaped pipe is provided with the filter screen, the inboard of U-shaped pipe is provided with prevents stifled subassembly, the deashing hole that is located the filter screen right side has been seted up to the bottom of U-shaped pipe. This energy-saving rotation air preheater with function is retrieved to hourglass wind through the drainage fan drainage, makes the hourglass wind collect the cover through the recovery hole flow direction, in the leading-in U-shaped pipe of cover is collected, in the U-shaped intraductal, filters the granule through filter screen wherein, carries the drainage fan again through communicating pipe to the protection drainage fan does not receive the wearing and tearing of granule, prolongs drainage fan's life, discharges into the flue gas pipeline through the backward flow hole at last.

Description

Energy-saving rotary air preheater with air leakage recovery function

Technical Field

The utility model relates to an air preheater technical field specifically is an energy-saving rotation air preheater with function is retrieved in leaking out.

Background

The air preheater is a heating surface for preheating air before entering the boiler to a certain temperature by smoke in a flue at the tail part of the boiler through internal radiating fins, and is equipment for improving the heat exchange performance of the boiler and reducing energy consumption; when the air flows through again, the heat receiving surface gives off the accumulated heat to the air.

The easy air leakage of gap department of rotation air preheater between fan-shaped closing plate and cigarette storehouse, wind storehouse causes the flue gas loss, influences the heat exchange rate, and traditional rotation air preheater generally does not handle the air leakage, and if guide to the air leakage is retrieved, the particulate matter is more in the flue gas, causes guide fan wearing and tearing great easily to it is shorter to cause the fan life-span, has promoted the recovery cost.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an energy-saving rotation air preheater with function is retrieved in leaking out possesses the recovery of being convenient for leak out, and filters the particulate matter, and extension guide fan advantages such as life have solved traditional air preheater and have leaked out and do not handle, and the problem of the easy wearing and tearing of guide fan of retrieving of leaking out.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an energy-saving rotation air preheater with function is retrieved in leaking out, includes the air preheater body, is provided with the flue gas pipeline on the air preheater body, be provided with fan-shaped closing plate on the air preheater body, the recovery hole has been seted up on the fan-shaped closing plate, the top of fan-shaped closing plate is provided with the collection cover, and the top of collecting the cover is provided with the U-shaped pipe, and the inboard of U-shaped pipe is provided with the filter screen, the inboard of U-shaped pipe is provided with prevents stifled subassembly, the deashing hole that is located the filter screen right side has been seted up to the bottom of U-shaped pipe, and the bottom of deashing hole is provided with the row's of grey subassembly, the top of U-shaped pipe is provided with communicating pipe, and the right-hand member of communicating pipe is provided with drainage fan, and drainage fan's the outside is provided with control flap, the backward flow hole of being connected with control flap is seted up in the outside of flue gas pipeline.

Further, prevent that stifled subassembly is located the right side of filter screen, prevent stifled subassembly including fixed connection at the inboard support of U-shaped pipe, set up the protecting crust in the support outside to and fixed connection scrape the motor at the inboard clear of protecting crust.

Further, prevent stifled subassembly still includes fixed connection and scrapes motor output shaft's pivot, fixed connection and stir the oar in the pivot outside to and fixed connection stirs the left clear scraper blade of oar in stirring.

Furthermore, the cleaning scraper is tightly attached to the filter screen, and the ash cleaning hole is located right below the cleaning scraper.

Further, arrange grey subassembly including fixed connection at the deposition case of deashing hole bottom, set up the ash discharging hole in deposition case bottom to and fixed connection is in the ash discharging valve door of ash discharging hole bottom.

Furthermore, the shape of recovery hole is the bar, and the quantity of recovery hole is ten, and ten recovery holes are evenly distributed at the top of fan-shaped closing plate.

Further, ten recovery holes are all positioned on the inner side of the collecting cover.

(III) advantageous effects

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this energy-saving rotation air preheater with function is retrieved in hourglass through the drainage fan drainage, makes the hourglass collect the cover through the recovery hole flow direction, in the leading-in U-shaped pipe of cover is collected to the process, in the U-shaped intraductal, filters the granule through filter screen wherein, carries the drainage fan again through communicating pipe to the protection drainage fan does not receive the wearing and tearing of granule, prolongs drainage fan's life, and the flue gas pipeline is arranged into through the backward flow hole at last, carries out the heat transfer again.

2. This energy-saving rotation air preheater with function is retrieved in leaking out carries out surperficial scraping to the filter screen through preventing stifled subassembly, clears up the particulate matter of gathering up on the filter screen surface, prevents that the filter screen from blockking up, and the particulate matter after the clearance falls into the deposition case through the deashing hole and collects, is convenient for carry out concentrated clearance to the particulate matter.

Drawings

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

FIG. 2 is an enlarged view of part A of the structure of FIG. 1;

FIG. 3 is a front view of the ash discharge assembly of the present invention;

fig. 4 is a top view of the fan-shaped sealing plate and the recycling hole of the present invention.

In the figure: 100 air preheater bodies, 200 flue gas pipelines, 300 fan-shaped sealing plates, 301 recovery holes, 400 collecting covers, 500U-shaped pipes, 501 filter screens, 502 ash cleaning holes, 600 anti-blocking assemblies, 610 supports, 620 protective shells, 630 cleaning motors, 640 rotating shafts, 650 stirring paddles, 660 cleaning plates, 700 ash discharging assemblies, 710 ash depositing boxes, 720 ash discharging holes, 730 ash discharging valves, 800 drainage fans, 801 communicating pipes, 802 control valves and 803 return holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment, the energy-saving rotary air preheater with air leakage recovery function includes an air preheater body 100, a flue gas pipeline 200 is disposed on the air preheater body 100, a fan-shaped sealing plate 300 is disposed on the air preheater body 100, a recovery hole 301 is disposed on the fan-shaped sealing plate 300, a collecting cover 400 is disposed on the top of the fan-shaped sealing plate 300, a U-shaped pipe 500 is disposed on the top of the collecting cover 400, a filtering net 501 is disposed on the inner side of the U-shaped pipe 500, an anti-blocking assembly 600 is disposed on the inner side of the U-shaped pipe 500, an ash cleaning hole 502 located on the right side of the filtering net 501 is disposed on the bottom of the U-shaped pipe 500, an ash discharging assembly 700 is disposed on the bottom of the ash cleaning hole 502, a communicating pipe 801 is disposed on the top of the U-shaped pipe 500, a drainage fan 800 is disposed at the right end of the communicating pipe 801, a control valve 802 is disposed on the outer side of the drainage fan 800, and a backflow hole 803 connected to the control valve 802 is disposed on the outer side of the flue gas pipeline 200.

Wherein, prevent stifled subassembly 600 and be located filter screen 501's right side, prevent stifled subassembly 600 including fixed connection at the inboard support 610 of U-shaped pipe 500, the protecting crust 620 of setting in the support 610 outside, and fixed connection is in the inboard clear motor 630 of scraping of protecting crust 620, prevent stifled subassembly 600 still including fixed connection at the clear pivot 640 of scraping motor 630 output shaft, fixed connection is at the stirring rake 650 in the pivot 640 outside, and fixed connection is at the left clear scraper blade 660 of stirring rake 650, clear scraper blade 660 hugs closely with filter screen 501, deashing hole 502 is located clear scraper blade 660 under, prevent that filter screen 501 from taking place to block up through preventing stifled subassembly 600.

In addition, the dust discharging assembly 700 comprises a dust box 710 fixedly connected to the bottom of the dust cleaning hole 502, a dust discharging hole 720 formed at the bottom of the dust box 710, and a dust discharging valve 730 fixedly connected to the bottom of the dust discharging hole 720, so that the particle dust can be conveniently and collectively treated by the dust discharging assembly 700.

In addition, the shape of recovery hole 301 is the bar, and the quantity of recovery hole 301 is ten, and ten recovery holes 301 are evenly distributed at the top of fan-shaped sealing plate 300, and ten recovery holes 301 all are located the inboard of collecting cover 400, evenly carry out the water conservancy diversion to leaking through a plurality of recovery holes 301.

The working principle of the embodiment is as follows:

(1) Through drainage fan 800 drainage, make the hourglass wind collect cover 400 through recovery hole 301 flow direction, through collecting the leading-in U-shaped pipe 500 of cover 400, filter the granule through filter screen 501 wherein, drive pivot 640 through scraping motor 630 clearly and rotate, pivot 640 drives stirring rake 650 and rotates, and stirring rake 650 drives clear scraper blade 660 and clearly scrapes filter screen 501's right side, prevents to block up.

(2) The scraped particle dust is received through the dust cleaning hole 502, the particle dust falls into the dust accumulation box 710 through the dust cleaning hole 502, and the particle dust is directly discharged through the dust discharging hole 720 and the dust discharging valve 730 by opening the dust discharging valve 730, so that the cleaning is convenient.

(3) Through the intercommunication between control flap 802 control backward flow hole 803 and the drainage fan 800, the high temperature air leakage flue gas after will filtering through drainage fan 800 is leading-in to flue gas pipeline 200 through backward flow hole 803, joins with the high temperature flue gas, then reentrants air preheater body 100 and carries out the heat exchange.

Compared with the prior art: through drainage fan 800 drainage, make the hourglass air collect cover 400 through recovery hole 301 flow direction, through collecting in the leading-in U-shaped pipe 500 of cover 400, in U-shaped pipe 500, filter the granule through filter screen 501 wherein, carry drainage fan 800 through communicating pipe 801 again, thereby protection drainage fan 800 does not receive the wearing and tearing of granule, the life of extension drainage fan 800, exhaust gas pipe 200 through backward flow hole 803 at last, carry out the heat transfer again, carry out surperficial cleaning to filter screen 501 through preventing stifled subassembly 600, clear up the particulate matter of collecting on filter screen 501 surface, prevent that filter screen 501 from blockking up, the particulate matter after the clearance falls into in dust box 710 through deashing hole 502 and collects, be convenient for carry out concentrated clearance to the particulate matter, it does not handle to have solved traditional air preheater hourglass wind, and the easy problem of wearing and tearing of the guide fan of the hourglass recovery.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy-saving rotation air preheater with function is retrieved in air leakage, includes air preheater body (100), is provided with flue gas pipeline (200) on air preheater body (100), be provided with fan-shaped closing plate (300), its characterized in that on air preheater body (100): the recovery hole (301) has been seted up on fan-shaped sealing plate (300), the top of fan-shaped sealing plate (300) is provided with collects cover (400), and the top of collecting cover (400) is provided with U-shaped pipe (500), and the inboard of U-shaped pipe (500) is provided with filter screen (501), the inboard of U-shaped pipe (500) is provided with prevents stifled subassembly (600), deashing hole (502) that are located filter screen (501) right side have been seted up to the bottom of U-shaped pipe (500), and the bottom of deashing hole (502) is provided with arranges grey subassembly (700), the top of U-shaped pipe (500) is provided with communicating pipe (801), and the right-hand member of communicating pipe (801) is provided with drainage fan (800), and the outside of drainage fan (800) is provided with control flap (802), return opening (803) of being connected with control flap (802) have been seted up in the outside of flue gas pipeline (200).

2. The energy-saving rotary air preheater with the air leakage recovery function as claimed in claim 1, wherein: prevent stifled subassembly (600) and be located the right side of filter screen (501), prevent stifled subassembly (600) including fixed connection at support (610) of U-shaped pipe (500) inboard, set up protecting crust (620) in support (610) outside to and fixed connection scrapes motor (630) at the inboard clear of protecting crust (620).

3. The energy-saving rotary air preheater with the air leakage recovery function as claimed in claim 2, wherein: prevent stifled subassembly (600) still including fixed connection in clear rotating shaft (640) of scraping motor (630) output shaft, fixed connection in stirring oar (650) in rotating shaft (640) outside to and fixed connection is in stirring clear scraper blade (660) on the left of oar (650).

4. The energy-saving rotary air preheater with the air leakage recovery function as claimed in claim 3, wherein: the cleaning scraper plate (660) is tightly attached to the filter screen (501), and the ash cleaning hole (502) is located right below the cleaning scraper plate (660).

5. The energy-saving rotary air preheater with the function of recovering leaked air as claimed in claim 1, wherein: the ash discharging assembly (700) comprises an ash deposition box (710) fixedly connected to the bottom of the ash cleaning hole (502), an ash discharging hole (720) formed in the bottom of the ash deposition box (710), and an ash discharging valve (730) fixedly connected to the bottom of the ash discharging hole (720).

6. The energy-saving rotary air preheater with the air leakage recovery function as claimed in claim 1, wherein: the shape of recovery hole (301) is the bar, and the quantity of recovery hole (301) is ten, and ten recovery holes (301) are evenly distributed at the top of fan-shaped sealing plate (300).

7. The energy-saving rotary air preheater with the function of recovering leaked air as claimed in claim 6, wherein: the ten recovery holes (301) are all positioned on the inner side of the collecting cover (400).