CN217952339U

CN217952339U - Boiler flue gas waste heat recovery device

Info

Publication number: CN217952339U
Application number: CN202221777665.XU
Authority: CN
Inventors: 何盼; 于洋; 刘勇
Original assignee: Hubei Beige Energy Technology Co ltd
Current assignee: Hubei Beige Energy Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-12-02
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to a flue gas waste heat recovery technical field, and a boiler flue gas waste heat recovery device is disclosed, including bellows, the bellows bottom is provided with communicating smoke inlet, and the bellows top is provided with the outlet flue, and logical groove has been seted up to bellows bottom both sides, and the inside sliding insertion of two-way inslot has the fixed frame of first fixed frame and the fixed frame of second that matches each other, and both sides fixed mounting has the filter screen about the fixed frame of first fixed frame and second is inside, the utility model discloses, through having thermal flue gas and first heat exchange tube and the contact of second heat exchange tube, first heat exchange tube and second heat exchange tube can be with the leading-in aquatic of inside of heat in the flue gas, because first heat exchange tube and second heat exchange tube are provided with the multiunit from the top down to enlarged the area of water and flue gas contact, be convenient for simultaneously with the leading-in first heat exchange tube of heat and second heat exchange tube surface heat again heating through the heat-conducting plate, make the flue gas can more fully accomplish the heat transfer with water like this.

Description

Boiler flue gas waste heat recovery device

Technical Field

The utility model belongs to the technical field of flue gas waste heat recovery, specifically be a boiler flue gas waste heat recovery device.

Background

The flue gas can be produced at the in-process of boiler work because have a large amount of heat energy in the flue gas to retrieve through flue gas waste heat recovery device and recycle the heat in the flue gas, thereby can provide hot water, heat source for production, life again with the heat of collecting, be convenient for improve entire system's thermal efficiency, the energy saving.

In this patent, boiler flue gas waste heat recovery device is when using, is not convenient for make the water of treating the heating be heated evenly to lead to the relatively poor and efficiency of heat transfer quality lower, boiler flue gas waste heat recovery device is after long-time work simultaneously, is not convenient for filter the impurity in the flue gas, leads to into the mouth easily and blocks up the influence work.

Disclosure of Invention

To the above situation, for overcoming the defect of prior art, the utility model provides a boiler flue gas waste heat recovery device, the effectual boiler flue gas waste heat recovery device who has solved on the existing market is when using, is not convenient for make the water of waiting to heat be heated evenly to lead to the relatively poor and efficiency of heat transfer quality lower, boiler flue gas waste heat recovery device is after long-time work simultaneously, is not convenient for filter the impurity in the flue gas, leads to into the problem that the mouth of cigarette blockked up the influence work easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a boiler flue gas waste heat recovery device, including bellows, the bellows bottom is provided with communicating inlet flue, the bellows top is provided with the outlet flue, logical groove has been seted up to bellows bottom both sides, the fixed frame of first fixed frame and the fixed frame of second that matches each other has been inserted to the inside slip of two logical inslots, both sides fixed mounting has the filter screen about first fixed frame and the fixed frame inside of second, the fixed active carbon filter layer that is provided with between the filter screen, the inside oblique type of bellows is provided with first heat exchange tube and second heat exchange tube, pipe connection is passed through with the adjacent one end of second heat exchange tube to first heat exchange tube, pipe and the inside lateral wall fixed connection of bellows, fixed delivery port and the water inlet that is provided with in both ends about the bellows outside, delivery port and water inlet and pipe intercommunication.

Preferably, the first heat exchange tube and the second heat exchange tube are arranged at an angle of 15 degrees, and the first heat exchange tube and the second heat exchange tube are uniformly arranged at intervals along the surface of the guide tube.

Preferably, the first heat exchange tubes are fixedly connected with the second heat exchange tubes through heat conduction plates, and through holes are uniformly arranged on the surfaces of the heat conduction plates.

Preferably, the two sides of the bottom of the bellows are provided with sealing grooves communicated with the through grooves, sealing plates matched with the sealing grooves are fixedly mounted on the outer sides of the first fixing frame and the second fixing frame, and fixing bolts are rotatably arranged on the two sides of the sealing plates.

Preferably, one end of the first fixed frame, which is close to the second fixed frame, is fixedly provided with a convex block, and the surface of the top of the second fixed frame is provided with a groove matched with the convex block.

Preferably, the first fixing frame is fixedly provided with sliding blocks close to two sides of the second fixing frame, and sliding grooves matched with the sliding blocks are formed in two sides of the inside of the air box.

Preferably, the first heat exchange tube and the adjacent second heat exchange tube are connected and arranged to form a group, and at least three groups are arranged inside the air box.

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

1) During work, the flue gas with heat is contacted with the first heat exchange tube and the second heat exchange tube, the first heat exchange tube and the second heat exchange tube can guide the heat in the flue gas into the water inside, the contact area of the water and the flue gas is enlarged due to the plurality of groups of the first heat exchange tube and the second heat exchange tube arranged from top to bottom, and meanwhile, the heat is conveniently guided into the surfaces of the first heat exchange tube and the second heat exchange tube through the heat conducting plate to be heated again, so that the heat exchange between the flue gas and the water can be more fully completed;

2) The impurity in the flue gas that gets into is filtered through the filter screen to inside having avoided entering into bellows, be convenient for adsorb the peculiar smell in the flue gas through the active carbon filter layer simultaneously and avoided the flue gas to cause the pollution to the air, pull out through pulling out the closing plate and driven the fixed frame of first fixed frame and second and pull out bellows, can be convenient for like this people clear up the filter screen, the effectual impurity of having avoided in the flue gas leads to the fact the jam to advancing the mouth of a cigarette.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a front view of the present invention;

fig. 2 is a cross-sectional view of a first heat exchange tube and a second heat exchange tube of the present invention;

fig. 3 is a perspective view of the first and second fixed frames of the present invention;

in the figure: 1. a bellows; 2. a smoke inlet; 3. a smoke outlet; 4. a through groove; 5. a first fixed frame; 6. a second fixed frame; 7. a filter screen; 8. an activated carbon filter layer; 9. a first heat exchange tube; 10. a second heat exchange tube; 11. a conduit; 12. a water outlet; 13. a water inlet; 14. a heat conducting plate; 15. a through hole; 16. a sealing groove; 17. a sealing plate; 18. a bump; 19. a groove; 20. a slider; 21. a chute.

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 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.

Embodiment one, by figure 1, figure 2 and figure 3 give, the utility model discloses an air box 1, 1 bottom of air box is provided with communicating inlet 2, it is inside that the flue gas enters air box 1 to be convenient for, 1 top of air box is provided with outlet 3, the discharge of the flue gas of being convenient for, logical groove 4 has been seted up to 1 bottom both sides of air box, two logical groove 4 inside sliding insertion have first fixed frame 5 and the fixed frame 6 of second that match each other, it inserts inside air box 1 to be convenient for first fixed frame 5 and the fixed frame 6 of second, both sides fixed mounting has filter screen 7 about first fixed frame 5 and the fixed frame 6 of second are inside, be convenient for filter the impurity in the flue gas, the fixed active carbon filter layer 8 that is provided with between filter screen 7, be convenient for adsorb the peculiar smell in the flue gas, 1 inside oblique type of air box is provided with first heat exchange tube 9 and second heat exchange tube 10, it heats water to be convenient for heat in the inside to lead in to the flue gas, the adjacent one end of first heat exchange tube 9 and the second heat exchange tube 10 is connected through pipe 11, be convenient for the flow of water, pipe 11 and the inside lateral wall fixed connection of 1 and 1 outside both ends are provided with bellows 12, it communicates with the delivery port to heat through the delivery port 12 to carry out through the cooling water inlet 13, it then to heat delivery port, it communicates to carry out the cold water inlet 12 to be convenient for use.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 2, the first heat exchange tube 9 and the second heat exchange tube 10 are arranged at an angle of 15 degrees, so that water in the first heat exchange tube 9 and the second heat exchange tube 10 can be discharged through the water inlet 13 automatically when the first heat exchange tube is not in operation, and the first heat exchange tube 9 and the second heat exchange tube 10 are uniformly arranged on the surface of the guide tube 11 at intervals, so that the contact area with flue gas is effectively enlarged.

In the third embodiment, on the basis of the first embodiment, as shown in fig. 2, the first heat exchange tubes 9 are fixedly connected with the second heat exchange tubes 10 through heat conducting plates 14, through holes 15 are uniformly arranged on the surfaces of the heat conducting plates 14, so that the entering flue gas is conveniently dispersed through the heat conducting plates 14, and the first heat exchange tubes 9 and the second heat exchange tubes 10 are more uniformly heated.

In the fourth embodiment, on the basis of the first embodiment, as shown in fig. 3, sealing grooves 16 communicating with the through grooves 4 are formed in two sides of the bottom of the bellows 1, sealing plates 17 matched with the sealing grooves 16 are fixedly mounted on the outer sides of the first fixing frame 5 and the second fixing frame 6, the sealing plates 17 are inserted into the sealing grooves 16, sealing is facilitated, and fixing bolts are rotatably arranged on two sides of the sealing plates 17, so that the sealing plates 17 are conveniently fixed.

In the fifth embodiment, based on the first embodiment, as shown in fig. 3, a protrusion 18 is fixedly installed at one end of the first fixing frame 5 close to the second fixing frame 6, a groove 19 matched with the protrusion 18 is formed on the top surface of the second fixing frame 6, and the protrusion 18 is inserted into the groove 19, so that the first fixing frame 5 and the second fixing frame 6 can be conveniently fixed.

Sixth embodiment, on the basis of the first embodiment, as shown in fig. 3, the first fixing frame 5 is fixedly provided with sliding blocks 20 near both sides of the second fixing frame 6, sliding grooves 21 matched with the sliding blocks 20 are formed on both sides inside the bellows 1, and the sliding blocks 20 and the sliding grooves 21 are matched with each other, so that the first fixing frame 5 and the second fixing frame 6 can slide inside the bellows 1 in a guiding manner.

Seventh embodiment, on the basis of the first embodiment, as shown in fig. 1, the first heat exchange tube 9 is connected with the adjacent second heat exchange tube 10 to form a group, and at least three groups are arranged inside the air box 1, so that the heating time of water is prolonged in a fixed space, and the overall heat exchange effect is improved.

The working principle is as follows: when the heat exchanger works, the smoke inlet 2 is arranged on a smoke outlet pipeline of a boiler, water to be heated enters the first heat exchange tube 9 and the second heat exchange tube 10 through the water inlet 13, meanwhile, the smoke enters the air box 1 through the smoke inlet 2, then the smoke with heat contacts the first heat exchange tube 9 and the second heat exchange tube 10, the heat in the smoke can be guided into the water inside through the first heat exchange tube 9 and the second heat exchange tube 10, the contact area of the water and the smoke is enlarged because a plurality of groups of the first heat exchange tube 9 and the second heat exchange tube 10 are arranged from top to bottom, the smoke is dispersed conveniently through the heat conduction plate 14, the smoke is more uniform, meanwhile, the heat is guided into the surfaces of the first heat exchange tube 9 and the second heat exchange tube 10 to be heated again through the heat conduction plate 14, the smoke can fully complete heat exchange with the water, and the heat exchange efficiency is greatly increased, the heat exchange quality is correspondingly improved, the heated water is finally discharged through the water outlet 12 to be used, impurities in the entering smoke are filtered through the filter screens 7 on the surfaces of the first fixing frame 5 and the second fixing frame 6 in the using process, so that the entering into the air box 1 is avoided, meanwhile, the peculiar smell in the smoke is conveniently adsorbed through the active carbon filter layer 8, so that the smoke is prevented from being directly discharged into the air to cause pollution, after the air box is used for a period of time, the fixation of the sealing plate 17 can be released through reversing the fixing bolts, so that people can conveniently pull the sealing plate 17 out of the sealing groove 16, the first fixing frame 5 and the second fixing frame 6 are simultaneously driven to pull out the air box 1 through the through groove 4, the cleaning of the filter screens 7 by people can be conveniently carried out, and the blockage of the smoke inlet 2 caused by the impurities in the smoke is effectively avoided, after the clearance is accomplished, insert first fixed frame 5 and the fixed frame 6 of second through logical groove 4 inside bellows 1, mutually support through slider 20 and spout 21 this moment to first fixed frame 5 moves in bellows 1 inside with the fixed frame 6 of second, then inserts inside recess 19 through lug 18, thereby has improved the fastness that first fixed frame 5 is connected with the fixed frame 6 of second and is convenient for continue to carry out filtering work.

Claims

1. The utility model provides a boiler flue gas waste heat recovery device, includes bellows (1), its characterized in that: the air box comprises an air box (1), a communicating smoke inlet (2) is formed in the bottom of the air box (1), a smoke outlet (3) is formed in the top of the air box (1), through grooves (4) are formed in two sides of the bottom of the air box (1), a first fixing frame (5) and a second fixing frame (6) which are matched with each other are inserted into the two through grooves (4) in a sliding mode, filter screens (7) are fixedly installed on the upper side and the lower side of the inside of the first fixing frame (5) and the second fixing frame (6), an activated carbon filter layer (8) is fixedly arranged between the filter screens (7), a first heat exchange tube (9) and a second heat exchange tube (10) are obliquely arranged inside the air box (1), the adjacent end of the first heat exchange tube (9) and the adjacent end of the second heat exchange tube (10) are connected through a guide tube (11), the guide tube (11) is fixedly connected with the inner side wall of the air box (1), a water outlet (12) and a water inlet (13) are fixedly arranged at the upper end and the lower end of the outer side of the air box (1), and the water outlet (12) are communicated with the guide tube (11).

2. The boiler flue gas waste heat recovery device according to claim 1, characterized in that: the heat exchanger is characterized in that the first heat exchange tube (9) and the second heat exchange tube (10) are arranged at an angle of 15 degrees, and the first heat exchange tube (9) and the second heat exchange tube (10) are uniformly arranged at intervals along the surface of the guide tube (11).

3. The boiler flue gas waste heat recovery device according to claim 1, characterized in that: the first heat exchange tubes (9) are fixedly connected with the second heat exchange tubes (10) through heat conduction plates (14), and through holes (15) are uniformly arranged on the surfaces of the heat conduction plates (14).

4. The boiler flue gas waste heat recovery device according to claim 1, characterized in that: the sealing structure is characterized in that two sides of the bottom of the air box (1) are provided with sealing grooves (16) communicated with the through grooves (4), sealing plates (17) matched with the sealing grooves (16) are fixedly mounted on the outer sides of the first fixing frame (5) and the second fixing frame (6), and fixing bolts are rotatably arranged on two sides of each sealing plate (17).

5. The boiler flue gas waste heat recovery device according to claim 1, characterized in that: one end of the first fixed frame (5) close to the second fixed frame (6) is fixedly provided with a convex block (18), and the top surface of the second fixed frame (6) is provided with a groove (19) matched with the convex block (18).

6. The boiler flue gas waste heat recovery device according to claim 1, characterized in that: the first fixing frame (5) is close to the two sides of the second fixing frame (6) and is fixedly provided with a sliding block (20), and the two sides inside the air box (1) are provided with sliding grooves (21) matched with the sliding block (20).

7. The boiler flue gas waste heat recovery device according to claim 1, characterized in that: the first heat exchange tube (9) is connected with the adjacent second heat exchange tube (10) and is arranged in a group, and at least three groups are arranged in the air box (1).