CN219530891U

CN219530891U - Flue gas guiding device of air preheater

Info

Publication number: CN219530891U
Application number: CN202320599234.7U
Authority: CN
Inventors: 冯红星; 王勇; 祁运苓; 王通; 张德凯; 冯芝涛
Original assignee: Jining Huayuan Thermal Power Co Ltd
Current assignee: Jining Huayuan Thermal Power Co Ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-08-15
Anticipated expiration: 2033-03-24

Abstract

The utility model discloses a flue gas guiding device of an air preheater, which relates to the technical field of flue gas guiding devices and comprises a shell, wherein a flue gas guide pipe main body is arranged in the shell, a cleaning mechanism is arranged in the flue gas guide pipe main body, and the cleaning mechanism comprises a toothed ring, a cleaning ring, an annular collecting groove and two supporting rods. It can be through the cooperation setting between flue gas pipe main part, clearance mechanism, positive and negative rotation motor and the bevel gear two, can make when flue gas pipe main part need clear up its inner wall after long-time use that the staff can be comparatively convenient quick accomplish the clearance to the clearance of the granule that flue gas pipe main part inner wall adhered to effectually avoided because the staff that does not have the clearance function and lead to in the prior art need dismantle it just can accomplish the condition of its clearance, reduced staff's work load, guaranteed the staff to the cleaning efficiency of flue gas pipe main part inner wall.

Description

Flue gas guiding device of air preheater

Technical Field

The utility model relates to the technical field of flue gas guiding devices, in particular to a flue gas guiding device of an air preheater.

Background

The air preheater is a heating surface for preheating air before entering a boiler to a certain temperature through an internal cooling fin by flue gas in a tail flue of the boiler, is equipment for improving heat exchange performance of the boiler and reducing energy consumption, and generally needs to use a flue gas guiding device to guide the flue gas when the air preheater is used.

According to the flue gas guiding device disclosed in the patent No. CN217119620U, the device comprises a plurality of guide cylinders, the front and the back of each guide cylinder are fixedly connected with guide page seats, the inside of each guide page seat positioned on the front and the back is movably connected with the same sliding guide rod, one side of each sliding guide rod is fixedly connected with a positioning seat strip, the other side of each sliding guide rod is fixedly connected with a control base, the tops of the front and the back of each control base are respectively and spirally connected with an adjusting screw, one end of each adjusting screw is contacted with one side of the guide page seat positioned on the leftmost side, a dust removing top cylinder is arranged outside each guide cylinder, a dust remover is fixedly connected with the top of each dust removing top cylinder, the bottoms of the guide cylinders are provided with dust removing bottom cylinders, and corner air inlets are fixedly connected with the tops of one sides of the dust removing bottom cylinders.

According to the flue gas guiding device of plate air heater disclosed in the patent number CN217541626U, the device body, the body, pipe and linkage segment, the inboard fixedly connected with first division board of linkage segment and second division board, be provided with a plurality of accelerating tube between first division board and the second division board, the accelerating tube includes the mainstream section, first backward flow section and second backward flow section, the mainstream section is the kink column structure, and the one side intercommunication first backward flow section of odd number section, the one side intercommunication of even number section has the second backward flow section, this scheme, through two division boards of inboard fixed connection at the linkage segment, and evenly distributed a plurality of groups accelerating tube between two division boards, the accelerating tube adopts class Tesla valve structure, flue gas accelerates at first backward flow section and second backward flow section, thereby avoid because the velocity of flue gas reduces by narrow income when wide, cause the packing of impurity in the flue gas in the body, lead to the device to damage, thereby promote the performance of device.

When the flue gas guiding device is used, fine particles are contained in the flue gas, when the flue gas is guided, the particles contained in the flue gas are adhered to the inner wall of the pipe body, the long-time use can cause the blockage of the inner wall of the pipe body so as to influence the guiding of the flue gas, in order not to influence the use of the guiding device, the particles adhered to the inner wall of the pipe body are required to be scraped, but the device does not have a scraping function when in use, although the device can reduce the adhesion of the particles, the situation that the inner wall of the pipe body is blocked due to the fact that the particles are adhered more is still present when in long-time use, so that people need to detach the device to clean the inner wall of the pipe body after long-time use, the device is very inconvenient for staff, the workload of the staff is increased, and meanwhile, the efficiency of the staff to detach the device to clean the device is low, and the device is not worth popularizing and used; therefore, we provide an air preheater flue gas guiding device to solve the above problems.

Disclosure of Invention

The utility model aims to make up the defects of the prior art and provides a flue gas guiding device of an air preheater.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an air heater flue gas guiding device, includes the casing, the inside of casing is provided with the flue gas pipe main part, the inside of flue gas pipe main part is provided with clearance mechanism, clearance mechanism includes ring gear, clearance ring, annular collecting vat and two bracing pieces, ring gear fixed connection is in the inner wall of flue gas pipe main part, two the bottom of bracing piece is all rotated and is connected with the gear body, two the gear body all meshes with the ring gear, two the equal fixedly connected with threaded rod in bottom surface of gear body, two the equal threaded connection of surface of threaded rod has the screw thread piece, two the equal fixedly connected with of screw thread piece is in the inner wall of clearance ring, two the equal fixedly connected with connecting rod in bottom surface of screw thread piece, two the equal fixedly connected with of connecting rod is in the inner wall of annular collecting vat.

Further, the outer surface of the cleaning ring is contacted with the inner wall of the flue gas duct body, and the outer surface of the annular collecting groove is contacted with the inner wall of the flue gas duct body.

Further, two the bottom of threaded rod is all fixedly connected with stopper, the inner wall fixedly connected with fixed plate of casing, the flue gas pipe main part rotates to be connected in the bottom surface of fixed plate and is linked together with the fixed plate.

Further, the two support rods are fixedly connected to the upper surface of the fixing plate, and the outer surface of the flue gas guide pipe main body is fixedly connected with a bevel gear I.

Further, a forward and reverse rotation motor is arranged on the inner wall of the shell, a bevel gear II is fixedly connected to the output end of the forward and reverse rotation motor, and the bevel gear II is meshed with the bevel gear I.

Further, the bottom surface fixedly connected with base of casing, the flue gas pipe main part rotates to connect in the upper surface of base and is linked together with the base.

Further, the surface fixedly connected with four positioning seats of base, the inner wall fixedly connected with filter of casing.

Compared with the prior art, the flue gas guiding device of the air preheater has the following beneficial effects:

1. according to the utility model, through the cooperation arrangement among the smoke guide pipe main body, the cleaning mechanism, the forward and backward rotating motor and the bevel gear II, when the smoke guide pipe main body is used for a long time and the inner wall of the smoke guide pipe main body needs to be cleaned, the cleaning of particles adhered to the inner wall of the smoke guide pipe main body can be conveniently and rapidly completed by the staff, so that the condition that the staff needs to detach the smoke guide pipe main body to clean the smoke guide pipe main body due to the fact that the smoke guide pipe main body is not cleaned in the prior art is effectively avoided, the workload of the staff is effectively reduced, the cleaning efficiency of the staff on the inner wall of the smoke guide pipe main body is further ensured, and the smoke guide pipe main body is worthy of popularization and use.

2. According to the utility model, through the matching arrangement among the smoke guide pipe main body, the toothed ring, the gear body, the bevel gear I, the threaded rod and the threaded block, the cleaning effect is better when people clean the inner wall of the smoke guide pipe main body, the rotation of the bevel gear I can drive the rotation of the smoke guide pipe main body and then drive the rotation of the toothed ring, the rotation of the gear body can be driven by the rotation of the toothed ring and then drive the rotation of the threaded rod, the up-and-down movement of the cleaning ring can be driven by the rotation of the threaded rod, and the cleaning effect on the inner wall of the smoke guide pipe main body can be further ensured by the downward movement of the cleaning ring and the rotation of the smoke guide pipe main body while cleaning the inner wall of the smoke guide pipe main body and scraping particles adhered on the inner wall of the smoke guide pipe main body.

Drawings

FIG. 1 is a schematic elevation view of a three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the housing of the present utility model;

FIG. 3 is a schematic view of a split structure of the cleaning mechanism of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a housing; 2. a smoke guide pipe main body; 3. a cleaning mechanism; 301. a toothed ring; 302. a support rod; 303. a gear body; 304. a threaded rod; 305. a screw block; 306. cleaning the ring; 307. a connecting rod; 308. an annular collection tank; 309. a limiting block; 4. a fixing plate; 5. bevel gears I; 6. a forward and reverse rotation motor; 7. bevel gears II; 8. a base; 9. a positioning seat; 10. and (5) a filter plate.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

The embodiment provides an air preheater flue gas guiding device, the device passes through the cooperation setting between flue gas pipe main part 2, clearance mechanism 3, positive and negative rotation motor 6 and bevel gear two 7, can make when flue gas pipe main part 2 need clear up its inner wall after long-time use, the staff can comparatively convenient quick completion to the clearance of the granule that flue gas pipe main part 2 inner wall adhered to, thereby effectually avoided because the staff that does not have the clearance function and lead to in the prior art need dismantle it just can accomplish the condition of its clearance, the effectual workload that reduces the staff, the while is further guaranteed the staff to the clearance efficiency of flue gas pipe main part 2 inner wall, be worth people to use widely.

Example 1:

referring to fig. 1-4, a flue gas guiding device of an air preheater comprises a shell 1, wherein a flue gas guide pipe main body 2 is arranged in the shell 1, a cleaning mechanism 3 is arranged in the flue gas guide pipe main body 2, the cleaning mechanism 3 comprises a toothed ring 301, a cleaning ring 306, an annular collecting groove 308 and two supporting rods 302, the two supporting rods 302 are L-shaped, the toothed ring 301 is fixedly connected to the inner wall of the flue gas guide pipe main body 2, and the toothed ring 301 can be driven to rotate along with the rotation of the flue gas guide pipe main body 2.

The bottom of two bracing pieces 302 all rotates and is connected with gear body 303, and two gear bodies 303 all mesh with ring gear 301, can drive two gear bodies 303 syntropy rotation through ring gear 301, and the equal fixedly connected with threaded rod 304 in bottom surface of two gear bodies 303, the equal threaded connection of the surface of two threaded rod 304 has screw thread piece 305, can drive the upper and lower removal of screw thread piece 305 through the rotation of threaded rod 304.

The inner wall of two screw thread pieces 305 all fixed connection in clearance ring 306, the equal fixedly connected with connecting rod 307 of bottom surface of two screw thread pieces 305, the equal fixed connection of two connecting rod 307 is in annular collecting vat 308's inner wall, can drive the removal of clearance ring 306 through the removal of screw thread piece 305, can realize scraping the inner wall of flue gas pipe main part 2 along with the removal of clearance ring 306, and the surface bonding of clearance ring 306 has clean fuzz.

The outer surface of the cleaning ring 306 contacts with the inner wall of the flue gas duct body 2, and the outer surface of the annular collecting groove 308 contacts with the inner wall of the flue gas duct body 2, so that the collection of scraped particles can be realized by arranging the annular collecting groove 308.

Example 2:

on the basis of the above embodiment, referring to fig. 1 to 3, the bottom ends of the two threaded rods 304 are fixedly connected with a limiting block 309, the inner wall of the casing 1 is fixedly connected with a fixing plate 4, the flue gas duct main body 2 is rotatably connected to the bottom surface of the fixing plate 4 and is communicated with the fixing plate 4, and the cleaning ring 306 can be prevented from being separated from the inner wall of the flue gas duct main body 2 by arranging the limiting block 309.

The two support rods 302 are fixedly connected to the upper surface of the fixing plate 4, the outer surface of the flue gas duct main body 2 is fixedly connected with a bevel gear I5, and the rotation of the bevel gear I5 can drive the flue gas duct main body 2 to rotate.

The inner wall of the shell 1 is provided with a forward and reverse motor 6, the forward and reverse motor 6 is arranged on the inner wall of the shell 1 through a bracket, the output end of the forward and reverse motor 6 is fixedly connected with a bevel gear II 7, the bevel gear II 7 is meshed with a bevel gear I5, the forward and reverse motor 6 belongs to the prior art, the model of the forward and reverse motor 6 is not limited in the utility model, the forward and reverse motor 6 is started to drive the bevel gear II 7 to rotate, and the bevel gear I5 can be driven to rotate along with the rotation of the bevel gear II 7.

Example 3:

on the basis of the above embodiment, referring to fig. 1 to 2, the bottom surface of the housing 1 is fixedly connected with the base 8, and the flue gas duct body 2 is rotatably connected to the upper surface of the base 8 and is communicated with the base 8.

The surface fixedly connected with four positioning seat 9 of base 8, the inner wall fixedly connected with filter 10 of casing 1 can make the staff install the device that can be comparatively convenient through setting up positioning seat 9, can prevent through setting up filter 10 that great foreign matter from entering into the inside of casing 1.

Working principle: in the in-process that the device was used, when the particulate matter that flue gas pipe main part 2 inner wall adhered was more, cause flue gas pipe main part 2 to block up the water conservancy diversion to the flue gas and cause the influence to need to clear up the inner wall of flue gas pipe main part 2, the staff only needs to start positive reverse motor 6, along with the rotation of positive reverse motor 6, and then drive the rotation of bevel gear one 5, can drive the rotation of flue gas pipe main part 2 through the rotation of bevel gear one 5, along with the rotation of flue gas pipe main part 2 can drive the rotation of ring gear 301, can drive the rotation of gear body 303 along with the rotation of ring gear 301, and then drive the rotation of threaded rod 304, can drive screw thread piece 305 downwardly moving through the rotation of threaded piece 305, can drive cleaning ring 306 downwardly moving and the rotation of flue gas pipe main part 2 self through cleaning ring 306, can realize the cleaning and the striking off of particulate matter that the inner wall was adhered to flue gas pipe main part 2 inner wall, and then make people convenient to the cleaning up of the inner wall of flue gas pipe main part 2 can drive the rotation of ring 306, thereby the work that has effectively avoided the clearance of the inner wall that has not had the work of people to have been worth the people effectively removed the inner wall of the people's cleaning condition that has effectively removed the inner wall of the flue gas pipe 2 simultaneously because that has effectively been used to have been reduced to the staff's work effectively.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.

Claims

1. The utility model provides an air preheater flue gas guiding device, includes casing (1), its characterized in that: the inside of casing (1) is provided with flue gas pipe main part (2), the inside of flue gas pipe main part (2) is provided with clearance mechanism (3), clearance mechanism (3) are including ring gear (301), clearance ring (306), annular collecting vat (308) and two bracing pieces (302), ring gear (301) fixedly connected with inner wall in flue gas pipe main part (2), two the bottom of bracing piece (302) is all rotated and is connected with gear body (303), two gear body (303) all meshes with ring gear (301), two the bottom surface of gear body (303) is all fixedly connected with threaded rod (304), two the equal threaded connection of surface of threaded rod (304) has screw thread piece (305), two equal fixedly connected with connecting rod (307) in the inner wall of clearance ring gear (306) of screw thread piece (305), two equal fixedly connected with connecting rod (307) in the inner wall of annular collecting vat (308) of bottom surface.

2. An air preheater flue gas deflector as set forth in claim 1, wherein: the outer surface of the cleaning ring (306) is contacted with the inner wall of the flue gas guide pipe main body (2), and the outer surface of the annular collecting groove (308) is contacted with the inner wall of the flue gas guide pipe main body (2).

3. An air preheater flue gas deflector as set forth in claim 1, wherein: the bottom of two threaded rods (304) is all fixedly connected with stopper (309), the inner wall fixedly connected with fixed plate (4) of casing (1), flue gas pipe main part (2) rotate connect in the bottom surface of fixed plate (4) and are linked together with fixed plate (4).

4. A flue gas guiding device for an air preheater according to claim 3, wherein: the two support rods (302) are fixedly connected to the upper surface of the fixed plate (4), and the outer surface of the flue gas guide pipe main body (2) is fixedly connected with a bevel gear I (5).

5. An air preheater flue gas deflector as set forth in claim 4, wherein: the inner wall of the shell (1) is provided with a forward and reverse rotation motor (6), the output end of the forward and reverse rotation motor (6) is fixedly connected with a bevel gear II (7), and the bevel gear II (7) is meshed with the bevel gear I (5).

6. An air preheater flue gas deflector as set forth in claim 1, wherein: the bottom surface fixedly connected with base (8) of casing (1), flue gas pipe main part (2) rotate connect in the upper surface of base (8) and be linked together with base (8).

7. An air preheater flue gas deflector as set forth in claim 6, wherein: the outer surface of the base (8) is fixedly connected with four positioning seats (9), and the inner wall of the shell (1) is fixedly connected with a filter plate (10).