CN217816848U

CN217816848U - Boiler with flue gas heat recovery structure

Info

Publication number: CN217816848U
Application number: CN202222169616.4U
Authority: CN
Inventors: 黄丹平
Original assignee: Individual
Current assignee: Guangxi Special Equipment Inspection and Research Institute
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-11-15
Anticipated expiration: 2032-08-17

Abstract

The utility model belongs to the technical field of boiler flue gas is retrieved, especially, a boiler with flue gas heat recovery structure, to having the flue gas among the current technique and not filtering when discharging, leading to environmental pollution easily to the insufficient problem of waste heat utilization of flue gas, now propose following scheme, it includes outer chimney, a plurality of supporting legs of outer wall fixedly connected with of outer chimney, the inside of outer chimney is equipped with interior chimney, the fixed cover of outer wall of interior chimney is equipped with the water tank, the outer wall threaded connection of water tank has the screw ring, the top of screw ring is contradicted with the bottom of outer chimney, the utility model discloses in, through letting the cigarette form N style of calligraphy trend in the device, the waste heat that can the make full use of flue gas heats the water in the water tank to can clear up the deposition of inside through the cooperation of first scraper blade and second scraper blade, then blow off through the fan.

Description

Boiler with flue gas heat recovery structure

Technical Field

The utility model relates to a boiler flue gas retrieves technical field, especially relates to a boiler with flue gas heat recovery structure.

Background

The high-temperature flue gas generated by boiler combustion usually takes away 20-50% of the heat supply of the boiler, and flue gas waste heat recovery mainly converts the heat carried by the flue gas into usable heat through a certain heat exchange mode, so that a flue gas recovery circulating boiler is created.

The utility model discloses a notice number is CN 210463583U's utility model discloses a circulation boiler is retrieved to flue gas, the on-line screen storage device comprises a base, the inner chamber fixed mounting of base has down the chimney, the inner chamber fixed mounting of base has the lower extreme of going up the chimney and going up the chimney to be connected to the upper end of lower chimney, the fixed surface of chimney installs into the mouth down, the drain has been seted up on the surface of chimney down, the viewing aperture that is located the drain top is seted up on the surface of chimney down, the bottom fixed mounting of chimney inner chamber has the hang plate down. This flue gas recovery circulation boiler cup joints the heat exchange tube through the water distribution pipe screw thread, utilizes the fixed column to hang the heat exchange tube to upwards support the heat exchange tube through the backup pad, changed traditional heat exchange system and can not dismantle, effectually solved the maintenance high price, wash the problem of difficulty, the effectual efficiency that improves washing and maintenance, practiced thrift the cost when damaging the change, improved the value that the device produced when using.

The device uses through the cooperation of hang plate and drain and viewing aperture and can clear up inside, but the flue gas does not filter when the discharge, leads to environmental pollution easily to the waste heat utilization of flue gas is not abundant, uses us to propose a boiler with flue gas heat recovery structure, is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the flue gas in the prior art is not filtered when being discharged, which easily causes environmental pollution, and the boiler with the flue gas heat recovery structure is provided with the defect of insufficient utilization of the waste heat of the flue gas.

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

the utility model provides a boiler with flue gas heat recovery structure, includes outer chimney, a plurality of supporting legs of outer wall fixedly connected with of outer chimney, the inside of outer chimney is equipped with interior chimney, the fixed cover of outer wall of interior chimney is equipped with the water tank, the outer wall threaded connection of water tank has the screw ring, the top of screw ring is contradicted with the bottom of outer chimney, the fixedly connected with outlet pipe is run through to the bottom of water tank, the fixedly connected with inlet tube is run through to the bottom of water tank, the bottom fixedly connected with intake pipe of interior chimney, the bottom of interior chimney is run through and is equipped with the fan, one side of outer chimney is equipped with the flue, the top of outer chimney is equipped with the clearance subassembly that is used for clearing up the outer chimney and the outer wall of interior chimney inner wall and water tank.

Preferably, the clearance subassembly includes the link of fixed connection at outer chimney top, the bottom fixedly connected with motor of link, the output shaft fixedly connected with axis of rotation of motor, the one end of axis of rotation runs through two first scraper blades of top and fixedly connected with of outer chimney, the both sides of first scraper blade laminate with the relative one side of water tank and outer chimney respectively, one side fixedly connected with second scraper blade of first scraper blade, one side of second scraper blade and the inner wall laminating of interior chimney.

Preferably, the inner wall of the inner chimney is fixedly connected with a plurality of heat collecting rings, and one side of the second scraper blade is provided with a rectangular opening matched with the heat collecting rings for use.

Preferably, the outer wall of outer chimney runs through a plurality of connecting pipes of fixedly connected with, and is a plurality of the same ring pipe of fixedly connected with is run through to the other end of connecting pipe, the top and the flue of ring pipe run through fixed connection.

Preferably, the inner wall of the connecting pipe is provided with a filter screen.

Preferably, the outer wall fixedly connected with of water tank is a plurality of connecting blocks, and is a plurality of the connecting block all with the inner wall fixed connection of outer chimney.

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

1. the smoke enters the inner chimney through the air inlet pipe, rises upwards, and can transfer heat in the smoke to water in the water tank through the heat collecting ring and the inner chimney to heat the water;

2. then the waste heat is used for heating the water in the water tank again, then the impurities in the flue gas are filtered through a filter screen, and finally the flue gas is discharged through an annular pipe and a flue;

3. when needs clearance, twist out the screw ring, start fan and motor, the motor passes through the axis of rotation and drives first scraper blade and second scraper blade rotation to the inner wall of outer chimney, the inner wall of interior chimney and the outer wall of water tank clear up, blow off impurity from between water tank and the outer chimney through the fan after the clearance.

The utility model discloses in, through letting the cigarette form the N style of calligraphy trend in the device, the waste heat that can make full use of flue gas heats the water in the water tank to cooperation through first scraper blade and second scraper blade can be cleared up the deposition of inside, then blows off through the fan.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a boiler with a flue gas heat recovery structure according to the present invention;

fig. 2 is a schematic cross-sectional view of a boiler with a flue gas heat recovery structure according to the present invention;

FIG. 3 is a schematic view of an inner chimney according to the present invention;

fig. 4 is a schematic view of a cleaning assembly according to the present invention.

In the figure: 1. an outer chimney; 2. supporting legs; 3. a connecting frame; 4. a motor; 5. a rotating shaft; 6. an annular tube; 7. a flue; 8. a water inlet pipe; 9. a water outlet pipe; 10. a fan; 11. an air inlet pipe; 12. a first squeegee; 13. a water tank; 14. a second squeegee; 15. an inner chimney; 16. a heat collecting ring; 17. a rectangular opening; 18. a connecting pipe; 19. filtering with a screen; 20. a threaded ring; 21. and (4) connecting the blocks.

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.

Example one

Referring to fig. 1-4, a boiler with a flue gas heat recovery structure comprises an outer chimney 1, a plurality of supporting legs 2 are fixedly connected to the outer wall of the outer chimney 1, an inner chimney 15 is arranged inside the outer chimney 1, a water tank 13 is fixedly arranged on the outer wall of the inner chimney 15 in a fixing mode, a threaded ring 20 is connected to the outer wall of the water tank 13 in a threaded mode, the top of the threaded ring 20 is abutted to the bottom of the outer chimney 1, a water outlet pipe 9 is fixedly connected to the bottom of the inner chimney 15 in a penetrating mode, a water inlet pipe 8 is fixedly connected to the bottom of the inner chimney 15 in a penetrating mode, an air inlet pipe 11 is fixedly connected to the bottom of the inner chimney 15, a fan 10 is arranged in the bottom of the inner chimney 15 in a penetrating mode, a flue 7 is arranged on one side of the outer chimney 1, and a cleaning assembly used for cleaning the inner walls of the outer chimney 1 and the inner chimney 15 and the outer wall of the water tank 13 is arranged on the top of the outer chimney 1.

Example two

Referring to fig. 1-4, a boiler with a flue gas heat recovery structure comprises an outer chimney 1, the outer wall of the outer chimney 1 is fixedly connected with a plurality of supporting legs 2, the inner chimney 15 is arranged inside the outer chimney 1, the outer wall of the inner chimney 15 is fixedly sleeved with a water tank 13, the outer wall of the water tank 13 is fixedly connected with a plurality of connecting blocks 21, the plurality of connecting blocks 21 are all fixedly connected with the inner wall of the outer chimney 1, so that a hollow space is formed between the water tank 13 and the outer chimney 1, the outer wall of the water tank 13 is in threaded connection with a threaded ring 20, the top of the threaded ring 20 is abutted against the bottom of the outer chimney 1, so that the water tank 13 is sealed with the outer chimney 1, the bottom of the water tank 13 is fixedly connected with a water outlet pipe 9 in a penetrating manner, the bottom of the water tank 13 is fixedly connected with a water inlet pipe 8 in a penetrating manner, the bottom of the inner chimney 15 is fixedly connected with a threaded ring 11, the bottom of the inner chimney 15 is provided with a fan 10 in a penetrating manner, one side of the outer chimney 1 is provided with a flue 7, the outer wall of the outer chimney 1 is fixedly connected with a plurality of connecting pipes 18 in a penetrating way, the inner wall of each connecting pipe 18 is provided with a filter screen 19, the other ends of the connecting pipes 18 are fixedly connected with the same annular pipe 6 in a penetrating way, the top of the annular pipe 6 is fixedly connected with the flue 7 in a penetrating way, the top of the outer chimney 1 is provided with a cleaning assembly for cleaning the inner walls of the outer chimney 1 and the inner chimney 15 and the outer wall of the water tank 13, the cleaning assembly comprises a connecting frame 3 fixedly connected with the top of the outer chimney 1, the bottom of the connecting frame 3 is fixedly connected with a motor 4, the output shaft of the motor 4 is fixedly connected with a rotating shaft 5, one end of the rotating shaft 5 penetrates through the top of the outer chimney 1 and is fixedly connected with two first scraping plates 12, the two sides of the first scraping plates 12 are respectively attached to the opposite sides of the water tank 13 and the outer chimney 1 and are used for scraping dust between the water tank 13 and the outer chimney 1, one side of the first scraping plates 12 is fixedly connected with a second scraping plate 14, one side of second scraper blade 14 and the inner wall laminating of interior chimney 15, a plurality of heat ring 16 that gather of inner wall fixedly connected with of interior chimney 15 for provide the heat to water tank 13, rectangle mouth 17 that the cooperation of second scraper blade 14 one side was seted up and is used with gathering heat ring 16, the dust of the inner wall of chimney 15 in being convenient for strike off.

The working principle is as follows: when the device is used, a power supply is connected to the device, the water inlet pipe 8 and the water outlet pipe 9 are respectively communicated with a water supply pump and a water suction pump, smoke enters the inner chimney 15 through the air inlet pipe 11 and rises upwards, heat in the smoke can be transferred to water in the water tank 13 through the heat collecting ring 16 and the inner chimney 15, the water is heated, the water reaches the outer wall of the water tank 13 through the inner wall of the outer chimney 1, the water in the water tank 13 is heated again through waste heat, impurities in the smoke are filtered through the filter screen 19 and finally discharged through the annular pipe 6 and the flue 7, when the device needs to be cleaned, the threaded ring 20 is screwed out, the fan 10 and the motor 4 are started, the motor 4 drives the first scraper 12 and the second scraper 14 to rotate through the rotating shaft 5, the inner wall of the outer chimney 1, the inner wall of the inner chimney 15 and the outer wall of the water tank 13 are cleaned, and the impurities are blown out of the outer chimney 1 through the fan 10 after the cleaning.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a boiler with flue gas heat recovery structure, includes outer chimney (1), its characterized in that, the inside of outer chimney (1) is equipped with interior chimney (15), the outer wall fixed cover of interior chimney (15) is equipped with water tank (13), the outer wall threaded connection of water tank (13) has screw ring (20), the top of screw ring (20) is contradicted with the bottom of outer chimney (1), fixedly connected with outlet pipe (9) is run through to the bottom of water tank (13), fixedly connected with inlet tube (8) is run through to the bottom of water tank (13), the bottom fixedly connected with intake pipe (11) of interior chimney (15), the bottom of interior chimney (15) is run through and is equipped with fan (10), one side of outer chimney (1) is equipped with flue (7), the top of outer chimney (1) is equipped with the clearance subassembly that is used for clearing up the outer chimney (1) and interior chimney (15) inner wall and the outer wall of water tank (13).

2. The boiler with the flue gas heat recovery structure according to claim 1, wherein the cleaning assembly comprises a connecting frame (3) fixedly connected to the top of the outer chimney (1), a motor (4) is fixedly connected to the bottom of the connecting frame (3), an output shaft of the motor (4) is fixedly connected with a rotating shaft (5), one end of the rotating shaft (5) penetrates through the top of the outer chimney (1) and is fixedly connected with two first scrapers (12), two sides of the first scrapers (12) are respectively attached to opposite sides of the water tank (13) and the outer chimney (1), one side of the first scraper (12) is fixedly connected with a second scraper (14), and one side of the second scraper (14) is attached to the inner wall of the inner chimney (15).

3. The boiler with the flue gas heat recovery structure according to claim 2, wherein a plurality of heat collecting rings (16) are fixedly connected to the inner wall of the inner flue (15), and a rectangular opening (17) matched with the heat collecting rings (16) is formed in one side of the second scraper (14).

4. A boiler with a flue gas heat recovery structure according to any one of claims 1-3, characterized in that a plurality of connecting pipes (18) are fixedly connected to the outer wall of the outer flue pipe (1) in a penetrating manner, the other ends of the plurality of connecting pipes (18) are fixedly connected to the same annular pipe (6) in a penetrating manner, and the top of the annular pipe (6) is fixedly connected to the flue (7) in a penetrating manner.

5. A boiler with flue gas heat recovery structure in accordance with claim 4, characterized by that, the inner wall of the connection pipe (18) is provided with a screen (19).

6. A boiler having a flue gas heat recovery structure in accordance with any one of claims 1-3, wherein a plurality of connection blocks (21) are fixedly connected to the outer wall of the water tank (13), and each of the plurality of connection blocks (21) is fixedly connected to the inner wall of the outer flue pipe (1).

7. A boiler with a flue gas heat recovery structure according to any one of claims 1-3, characterized in that a plurality of supporting legs (2) are fixedly connected to the outer wall of the outer chimney (1).