CN221324524U

CN221324524U - Flue gas waste heat recovery device

Info

Publication number: CN221324524U
Application number: CN202322775513.7U
Authority: CN
Inventors: 李善学; 李治国; 李幼金; 刘新华; 李治坤
Original assignee: Hubei Hetai Bio Energy Co ltd
Current assignee: Hubei Hetai Bio Energy Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-07-12
Anticipated expiration: 2033-10-17

Abstract

The utility model provides a flue gas waste heat recovery device, which comprises a ventilation layer, wherein a spray layer is arranged at the top of the ventilation layer, an annular spray plate is arranged in the spray layer, the spray plate consists of a plurality of annular frames with spray heads, an air inlet pipe is arranged at one side of the ventilation layer, a return layer is fixed at the bottom of the ventilation layer, a filter plate is fixed in the return layer, outlet ports are arranged at positions, corresponding to the filter plate and the spray plate, of the outer walls of the return layer and the spray layer, an expansion cavity is fixed between the spray layer and the ventilation layer, the inner diameter of the expansion cavity is larger than that of the spray layer and the ventilation layer, compared with the prior art, hot air is fed into the spray layer from the ventilation layer after entering the expansion cavity, the spray plate sprays the hot air and removes dust, sewage is recycled through a conical cylinder, meanwhile, the sewage is prevented from accumulating in the device to influence the conveying of the hot air, and the detachable sealing plate enables the spray plate and the filter plate to be more convenient to detach and clean.

Description

Flue gas waste heat recovery device

Technical Field

The utility model relates to the technical field of biomass boilers, in particular to a flue gas waste heat recovery device.

Background

The biomass boiler is a kind of boiler, the boiler using biomass energy as fuel is called biomass boiler, the fuel is fed into a hearth by a screw feeder, the hearth is preheated gradually under the action of high-temperature flue gas and primary air, and the biomass boiler is dried, ignited and burnt, a large amount of volatile matters are separated out in the process, and the combustion is severe. After the generated high-temperature flue gas flushes the main heating surface of the boiler, the flue gas enters the boiler tail heating surface economizer and the air preheater, enters the dust remover, and finally is discharged into the atmosphere through a chimney. The unvaporized fuel moves towards the rear part of the fire grate until being burnt out, and finally a small amount of ash residues fall into a slag removing port at the rear part of the fire grate, so that heat generated by combustion is usually recovered and reused, and when the heat of the flue gas is recovered, dust is doped in the flue gas, and the accumulation of the dust can influence a pipeline.

Patent CN215336366U proposes a flue gas waste heat recovery device, with the external pipe to the perforation position of seting up on the lower tube outer wall, with liquid input to the inner chamber of seal tube through the pipe in, rethread seal tube is with the leading-in inner chamber of external pipe to leading-in water pipe and sprinkler department again through external pipe, and realize spraying, reduce the dust in the steam.

The defects of the scheme are as follows: in the scheme technology, dust in hot gas is removed through a spraying mode, but the sprayed waste water part lacks a collecting and recycling technology, so that more water resource waste can be caused, the efficiency of air supply is affected by blockage in the device due to poor discharge, more dirt can be accumulated on spraying parts due to long-term spraying of smoke, water outlet efficiency is affected, and the spraying equipment is inconvenient to detach and clean in the scheme.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide a flue gas waste heat recovery device to solve the problems in the prior art, the flue gas waste heat recovery device is novel in structure, hot gas enters an expansion cavity from a ventilation layer and then is sent into a spraying layer, the hot gas is sprayed and dust is removed through a spraying plate, sewage is recycled through a conical cylinder, meanwhile, the sewage is prevented from accumulating in the device to influence the conveying of the hot gas, and the detachable sealing plate enables the spraying plate and the filtering plate to be detached and cleaned more conveniently.

In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a flue gas waste heat recovery device, includes the ventilation layer, ventilation layer top is equipped with sprays the layer, and sprays the intra-layer and install annular spraying plate, spray the board and constitute by a plurality of ring frame that have the shower nozzle, the intake pipe has been seted up to ventilation layer one side, and ventilation layer bottom is fixed with the return flow layer, be fixed with the filter in the return flow layer, and return flow layer and spray the outer wall of layer and correspond the filter and spray the position of board and seted up the delivery outlet, it is fixed with between layer and the ventilation layer to spray and expand the chamber, and expand the chamber internal diameter and be greater than and spray layer and ventilation layer, it is fixed with the toper section of thick bamboo to expand the intracavity, the internal diameter of toper section of thick bamboo is the same with spraying layer and ventilation layer.

Further, the outer side of the outlet of the spraying layer is fixedly provided with a first sealing plate in a sealing manner, the top of the spraying plate is rotatably provided with a rotating rod through a bearing, and one end of the rotating rod penetrates out of the first sealing plate through the bearing in a rotating seal manner.

Furthermore, the other end of the rotating rod is fixed with a stud, a screw hole is formed in the inner wall of the spraying layer corresponding to one end of the stud, and the stud can be inserted into the screw hole in a meshed mode.

Further, the top of the annular frame adjacent to the spraying plate is fixedly communicated with a secondary pipe, a main pipe is fixed on the surface of the first sealing plate, and the other end of the main pipe is fixed with the outermost end of the spraying plate.

Further, the bottom of the reflux layer positioned at the filtering plate is fixedly inserted with a hose, and the other end of the hose is sleeved at the outer end of the main pipe through a suction pump.

Further, the two sides of the cone-shaped cylinder are fixedly provided with connecting frames, the connecting frames are fixed with the inner wall of the expansion cavity, the bottom of the cone-shaped cylinder is fixedly provided with a discharge pipe, the other end of the discharge pipe penetrates out of the ventilation layer, the backflow layer is positioned on the outer wall of the top of the filter plate, one end of the water pump is fixed with the discharge pipe, and the other end of the water pump penetrates into the upper end of the backflow layer.

Further, the outer end of the outlet of the reflux layer is fixedly sealed with a second sealing plate.

The utility model has the beneficial effects that: the utility model relates to a flue gas waste heat recovery device, which comprises a ventilation layer; an air inlet pipe; expanding the cavity; a conical cylinder; a connecting frame; a discharge pipe; a water pump; spraying a layer; a spray plate; a first sealing plate; a rotating rod; a stud; a main pipe; a secondary pipe; a screw hole; a reflow layer; a filter plate; a second sealing plate; a hose; a delivery port;

1. According to the utility model, the spraying plate is in a hollow structure, the conveying of hot gas is not influenced, sewage generated by spraying falls into the conical barrel, the sewage is conveyed into the reflux layer through the cooperation of the discharge pipe and the water pump, impurities can be filtered through the filter plate for reuse, the filter plate can be conveyed for multiple times through the hose, the filter plate can be taken out from the outlet through opening the second sealing plate, the filter plate is cleaned, and the efficient filtration of the filter plate is maintained.

2. The utility model can install the cone-shaped cylinder by arranging the expansion cavity, so that the radius of the cone-shaped cylinder is the same as that of the spraying layer and the ventilation layer, sewage can be prevented from falling into the bottom of the ventilation layer to the greatest extent, the air supply efficiency is influenced, meanwhile, the space of the inner layer of the expansion cavity can be convenient for air to flow, the air supply efficiency is prevented from being influenced by the arrangement of the cone-shaped cylinder, and the inclined surface of the cone-shaped cylinder can also help sewage and impurities to flow into the reflux layer rapidly.

3. Compared with the prior art, the utility model has the advantages that the hot air enters the expansion cavity from the ventilation layer and then is sent into the spraying layer, the hot air is sprayed and dust is removed through the spraying plate, the sewage is recycled through the conical cylinder, meanwhile, the phenomenon that the sewage is accumulated in the device to influence the conveying of the hot air is avoided, and the detachable sealing plate enables the spraying plate and the filtering plate to be detached and cleaned more conveniently.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a flue gas waste heat recovery device according to the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a reflux layer of the flue gas waste heat recovery device;

FIG. 3 is a schematic diagram of the inner structure of a spraying layer of the flue gas waste heat recovery device;

fig. 4 is a schematic diagram of the internal structure of an expansion chamber of the flue gas waste heat recovery device of the present utility model.

In the figure: 1. a ventilation layer; 11. an air inlet pipe; 2. expanding the cavity; 21. a conical cylinder; 22. a connecting frame; 23. a discharge pipe; 24. a water pump; 3. spraying a layer; 31. a spray plate; 32. a first sealing plate; 33. a rotating rod; 34. a stud; 35. a main pipe; 36. a secondary pipe; 37. a screw hole; 4. a reflow layer; 41. a filter plate; 42. a second sealing plate; 43. a hose; 5. and a delivery port.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a flue gas waste heat recovery device, includes ventilation layer 1, ventilation layer 1 top is equipped with sprays layer 3, and sprays layer 3 installs annular shower plate 31 in, shower plate 31 comprises a plurality of ring frame that have the shower nozzle, intake pipe 11 has been seted up to ventilation layer 1 one side, and ventilation layer 1 bottom is fixed with back flow layer 4, back flow layer 4 internal fixation has filter 41, and back flow layer 4 and sprays layer 3 outer wall and correspond filter 41 and shower plate 31's position and offer the delivery port 5, be fixed with between spray layer 3 and the ventilation layer 1 and expand chamber 2, and expand chamber 2 internal diameter and be greater than spray layer 3 and ventilation layer 1, expand chamber 2 internal diameter and be fixed with toper section of thick bamboo 21 in the expansion chamber 2, the internal diameter of toper section of thick bamboo 21 is the same with spray layer 3 and ventilation layer 1, and the partial structure that biomass boiler steam was sprayed in this scheme only, the other structures are the same with current living beings filtration technique, and the flue gas is sent into layer 1 through intake pipe 11, through expanding chamber 2's transport entering layer 3, with the dust fall water mixing who sprays plate 31 forms sewage, and the air can both flow into the same diameter and can be prevented from directly flowing into by layer 21 through the back flow layer 21 to the ventilation layer 1 to the back flow layer 1, can be influenced by the toper section of thick bamboo 21 to the air inlet and the air flow rate of thick bamboo 21, can be conveniently set up the toper section of thick bamboo 21 and can be influenced by the air flow rate and the air flow layer 21 simultaneously in order to the air channel 21 to the air channel 1.

In this embodiment, the outer side of the outlet 5 of the spray layer 3 is sealed and fixed with a first sealing plate 32, the top of the spray plate 31 is rotatably provided with a rotating rod 33 through a bearing, one end of the rotating rod 33 passes through the bearing to rotate and seal out of the first sealing plate 32, the other end of the rotating rod 33 is fixed with a stud 34, the inner wall of the spray layer 3 corresponding to one end of the stud 34 is provided with a screw hole 37, the stud 34 can be engaged and inserted into the screw hole 37, the spray plate 31 is inserted and locked with the screw hole 37 through the stud 34 of the rotating rod 33, and is installed in the spray layer 3, the first sealing plate 32 is opened, and the spray plate 31 can be taken out from the outlet 5 for cleaning.

In this embodiment, the secondary pipe 36 is fixedly connected to the top of the adjacent annular frame of the spray plate 31, the main pipe 35 is fixedly arranged on the surface of the first sealing plate 32, the other end of the main pipe 35 is fixedly connected with the outermost end of the spray plate 31, the bottom of the backflow layer 4 located in the filter plate 41 is fixedly inserted with the hose 43, the other end of the hose 43 is sleeved on the outer end of the main pipe 35 through the suction pump, the connection frames 22 are fixedly arranged on two sides of the conical cylinder 21, the connection frames 22 are fixedly connected with the inner wall of the expansion cavity 2, the discharge pipe 23 is fixedly arranged at the bottom of the conical cylinder 21, the other end of the discharge pipe 23 penetrates out of the ventilation layer 1, the backflow layer 4 is fixedly provided with the water pump 24 on the outer wall of the top of the filter plate 41, one end of the water pump 24 is fixedly connected with the discharge pipe 23, the other end of the water pump 24 penetrates into the upper end of the backflow layer 4, the outer end of the delivery port 5 of the backflow layer 4 is fixedly sealed with the second sealing plate 42, clean water is delivered into the annular frame of each group through the cooperation of the main pipe 35 and the secondary pipe 36, the hot air is sprayed out through the spray head, the overall efficiency is realized, the spraying plate 31 is in a hollow structure, the delivery of sewage is not influenced, the delivery of the inner part of the conical cylinder 21 is enabled, the sewage is again, the filter plate is polluted, the filter plate is cleaned through the filter plate 24, and the filter plate is kept in the filter plate 41, and the filter plate is cleaned through the filter plate 41, and the filter plate is opened through the filter pipe 41 and the filter layer is kept by the filter pipe 41, and the filter layer is opened through the filter pipe 41 and the filter layer is made and can be opened.

When the device is used, flue gas is sent into the ventilation layer 1 through the air inlet pipe 11, enters the spraying layer 3 through the conveying of the expansion cavity 2, is mixed with dust fall water sprayed by the spraying plate 31 to form sewage, hot air is sent out and collected from the upper end of the spraying layer 3, the sewage is sent into the reflux layer 4 through the conical cylinder 21 to be recycled, the spraying plate 31 is spliced and locked with the screw holes 37 through the studs 34 of the rotating rod 33, and is installed in the spraying layer 3, the first sealing plate 32 is opened, the spraying plate 31 can be taken out and cleaned from the outlet 5, the second sealing plate 42 is opened, the filter plate 41 can be taken out from the outlet 5, the filter plate 41 is cleaned, and efficient filtration of the filter plate 41 is maintained.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a flue gas waste heat recovery device, includes ventilation layer (1), its characterized in that: the utility model discloses a shower nozzle structure, including ventilation layer (1), shower layer (3), spray layer (3) top and install annular spraying board (31) in spraying layer (3), spraying board (31) comprises a plurality of ring frame that have the shower nozzle, intake pipe (11) have been seted up to ventilation layer (1) one side, and ventilation layer (1) bottom is fixed with return flow layer (4), return flow layer (4) internal fixation has filter (41), and return flow layer (4) and spray layer (3) outer wall correspond filter (41) and spray board (31) the position of putting and have offered send out mouth (5), be fixed with between spraying layer (3) and ventilation layer (1) and expand chamber (2), and expand chamber (2) internal diameter and be greater than spraying layer (3) and ventilation layer (1), expand chamber (2) internal diameter that is fixed with cone (21), the internal diameter of cone (21) is the same with spraying layer (3) and ventilation layer (1).

2. A flue gas waste heat recovery device according to claim 1, wherein: the outer side of the delivery outlet (5) of the spraying layer (3) is fixedly provided with a first sealing plate (32) in a sealing mode, the top of the spraying plate (31) is rotatably provided with a rotating rod (33) through a bearing, and one end of the rotating rod (33) penetrates out of the first sealing plate (32) through bearing rotation sealing.

3. A flue gas waste heat recovery device according to claim 2, wherein: the other end of the rotating rod (33) is fixed with a stud (34), a screw hole (37) is formed in the inner wall of the spraying layer (3) corresponding to one end of the stud (34), and the stud (34) can be inserted into the screw hole (37) in a meshed mode.

4. A flue gas waste heat recovery device according to claim 3, wherein: the top of the adjacent annular frames of the spray plates (31) is fixedly communicated with a secondary pipe (36), a main pipe (35) is fixedly arranged on the surface of the first sealing plate (32), and the other end of the main pipe (35) is fixedly connected with the outermost end of the spray plates (31).

5. The flue gas waste heat recovery device according to claim 4, wherein: the reflux layer (4) is positioned at the bottom of the filter plate (41) and is fixedly inserted with a hose (43), and the other end of the hose (43) is sleeved at the outer end of the main pipe (35) through a suction pump.

6. A flue gas waste heat recovery device according to claim 1, wherein: the utility model discloses a water pump, including toper section of thick bamboo (21), connecting frame (22) are fixed with both sides of toper section of thick bamboo (21), and connecting frame (22) are fixed with extension chamber (2) inner wall, toper section of thick bamboo (21) bottom is fixed with discharge pipe (23), and discharge pipe (23) other end wears out ventilation layer (1), reflux layer (4) are located on the outer wall at filter (41) top be fixed with water pump (24), and water pump (24) one end is fixed with discharge pipe (23), the water pump (24) other end penetrates reflux layer (4) upper end.

7. The flue gas waste heat recovery device according to claim 6, wherein: the outer end of the delivery outlet (5) of the reflux layer (4) is fixedly sealed with a second sealing plate (42).