CN212082092U

CN212082092U - Wet dust collector for recovering flue gas waste heat

Info

Publication number: CN212082092U
Application number: CN202020640307.9U
Authority: CN
Inventors: 孙长江
Original assignee: Jiangsu Huaze Environmental Protection Group Co ltd
Current assignee: Jiangsu Huaze Environmental Protection Group Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-12-04
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to a wet dust collector technical field just discloses a flue gas waste heat recovery wet dust collector, which comprises an outer shell, the vacuum chamber has been seted up to the inside of shell, the inside fixed mounting of shell has the spliced pole that is located the inside of vacuum chamber, one side fixed mounting that the shell was kept away from to the spliced pole has the inner shell, the water cavity has been seted up to the inside of inner shell, the top fixed mounting of shell has the top cap, the bottom fixed mounting of shell has the bottom, fixed mounting has the tobacco pipe that is located the water cavity inboard between top cap and the bottom, the inside fixed mounting of tobacco pipe has the heat transfer board. This flue gas waste heat recovery wet dust collector possesses advantages such as waste heat recovery utilizes, has solved prior art, and the inside flue gas of wet dust collector is higher at the journey temperature that flows, and when the flue gas got into the water bath and removed dust in the middle of the equipment that sprays, the higher temperature of flue gas can make the quick inflation of inside atmospheric pressure, produces vapor etc. and does not utilize good heat recovery's problem.

Description

Wet dust collector for recovering flue gas waste heat

Technical Field

The utility model relates to a wet dust collector technical field specifically is a flue gas waste heat recovery wet dust collector.

Background

A wet dust collector, commonly called as a demister, is a device which makes dust-containing gas closely contact with liquid (generally water) and utilizes the inertia collision of water drops and particles or the full mixing action of water and dust and other actions to collect the particles or enlarge or retain the particles in a fixed container to achieve the effect of separating water from the dust, the produced wet dust collector combines two forms of water bath and spraying into a whole, firstly, the dust-containing gas is pressed into a water tank filled with water with a certain height by utilizing the suction force of a high-pressure centrifugal fan, the water bath can absorb a part of dust in the water, the gas flows from bottom to top after uniform distribution and shunt, a high-pressure spray head sprays water mist from top to bottom to collect the rest part of dust particles, the filtering efficiency of the wet dust collector can reach more than 85 percent, and the wet dust collector can effectively remove liquid or solid particles with the diameter of 0.1-20 microns from the gas flow, meanwhile, the device can also remove part of gaseous pollutants, has the advantages of simple structure, small occupied area, convenient operation and maintenance, high purification efficiency and the like, can treat high-temperature and high-humidity airflow, and can minimize the possibility of fire and explosion, but the problems of equipment and pipeline corrosion, sewage and sludge treatment and the like need to be particularly noticed when a wet dust collector is adopted, and the recovery of byproducts is not facilitated in the wet dust removal process.

Among the prior art, the flue gas of wet dust collector inside is higher in the process temperature that flows, and when the flue gas got into water bath and spray set in the middle of removing dust, the higher temperature of flue gas can make the quick inflation of inside atmospheric pressure, produces vapor etc. does not utilize good thermal recovery, so provides a flue gas waste heat recovery wet dust collector and solves the above-mentioned problem of proposing.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a flue gas waste heat recovery wet dust collector possesses advantages such as waste heat recovery utilizes, has solved prior art, and the inside flue gas of wet dust collector is higher at the flow process temperature, and when the flue gas got into the water bath and removed dust in the middle of the spraying equipment, the higher temperature of flue gas can make the quick inflation of inside atmospheric pressure, produces vapor etc. and does not utilize good heat recovery's problem.

(II) technical scheme

For the purpose of realizing above-mentioned waste heat recovery, the utility model provides a following technical scheme: a wet dust collector for recovering waste heat of flue gas comprises an outer shell, wherein a vacuum cavity is formed in the outer shell, a connecting column located inside the vacuum cavity is fixedly mounted inside the outer shell, an inner shell is fixedly mounted on one side, far away from the outer shell, of the connecting column, a water cavity is formed in the inner shell, a top cover is fixedly mounted at the top of the outer shell, a bottom cover is fixedly mounted at the bottom of the outer shell, a flue tube located on the inner side of the water cavity is fixedly mounted between the top cover and the bottom cover, a heat exchange plate is fixedly mounted inside the flue tube, a heating cavity communicated with the water cavity is formed in the heat exchange plate, a flue cavity is formed in the flue tube, a smoke exhaust hole communicated with the flue cavity is formed in the top cover, a smoke exhaust pipe communicated with the smoke exhaust hole is fixedly mounted at the top of the top cover, a smoke inlet hole is formed in the bottom of the bottom cover, the right side fixed mounting of shell has the drain pipe, the right side fixed mounting of shell has the inlet tube.

Preferably, the connecting columns are distributed in the vacuum cavities at equal intervals, and the vacuum cavities are positioned between the outer shell and the inner shell.

Preferably, the water cavity is located between the inner shell and the smoke tube, and the water inlet pipe and the water outlet pipe penetrate and extend to the inside of the water cavity.

Preferably, the water inlet pipe and the water discharge pipe are symmetrically distributed up and down, and the water inlet pipe is positioned above the water discharge pipe.

Preferably, the heat exchange plates are distributed in an equidistant annular mode and are located on the inner side of the smoke cavity.

Preferably, the smoke inlet and the smoke exhaust hole are respectively communicated with the bottom and the top of the smoke cavity, and are distributed vertically and symmetrically.

(III) advantageous effects

Compared with the prior art, the utility model provides a flue gas waste heat recovery wet dust collector possesses following beneficial effect:

this flue gas waste heat recovery wet dust collector, high temperature flue gas gets into to the smoke chamber inside and tobacco pipe and heat transfer board direct contact through advancing the tobacco pipe and advancing the cigarette hole, inlet tube and drain pipe all are connected with water circulation equipment, rivers carry to the water intracavity portion through the inlet tube, circulating through the drain pipe, high temperature flue gas carries out the temperature exchange with tobacco pipe and heat transfer board, the continuous circulation of the inside water of water chamber carries out the temperature exchange to tobacco pipe and heat transfer board simultaneously, the temperature that makes tobacco pipe and heat transfer board is less than the temperature of high temperature flue gas all the time, the heat of continuous high temperature flue gas of absorbing, carry out waste heat recovery, the heat transfer board can increase the area of contact with the flue gas, and the heat exchange efficiency is improved, thereby waste heat recovery and utilization's purpose has been reached.

Drawings

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

fig. 2 is a top sectional view of the structure of the present invention.

In the figure: 1 outer shell, 2 vacuum cavities, 3 connecting columns, 4 inner shells, 5 water cavities, 6 smoke pipes, 7 heating cavities, 8 heat exchange plates, 9 smoke exhaust holes, 10 top covers, 11 smoke exhaust pipes, 12 water inlet pipes, 13 bottom covers, 14 smoke inlet holes, 15 smoke inlet pipes, 16 water outlet pipes and 17 smoke cavities.

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. 1-2, the present invention provides the following technical solutions: a wet dust collector for recovering waste heat of flue gas comprises an outer shell 1, a vacuum cavity 2 is arranged inside the outer shell 1, a connecting column 3 positioned inside the vacuum cavity 2 is fixedly installed inside the outer shell 1, the connecting column 3 is distributed inside the vacuum cavity 2 at equal intervals, the vacuum cavity 2 is positioned between the outer shell 1 and an inner shell 4, an inner shell 4 is fixedly installed on one side, away from the outer shell 1, of the connecting column 3, a water cavity 5 is arranged inside the inner shell 4, a top cover 10 is fixedly installed on the top of the outer shell 1, a bottom cover 13 is fixedly installed at the bottom of the outer shell 1, a flue tube 6 positioned on the inner side of the water cavity 5 is fixedly installed between the top cover 10 and the bottom cover 13, a heat exchange plate 8 is fixedly installed inside the flue tube 6, a heating cavity 7 communicated with the water cavity 5 is formed inside the heat exchange plate 8, flue cavities 17 are formed inside the flue tube 6 at, the inside of the top cover 10 is provided with a smoke vent 9 communicated with a smoke cavity 17, the top of the top cover 10 is fixedly provided with a smoke exhaust pipe 11 communicated with the smoke vent 9, the inside of the bottom cover 13 is provided with a smoke inlet 14, the bottom of the bottom cover 13 is fixedly provided with a smoke inlet pipe 15 communicated with the smoke inlet 14, the right side of the outer shell 1 is fixedly provided with a water outlet pipe 16, the water cavity 5 is positioned between the inner shell 4 and the smoke pipe 6, the water inlet pipe 12 and the water outlet pipe 16 both penetrate through and extend into the water cavity 5, the right side of the outer shell 1 is fixedly provided with a water inlet pipe 12, the water inlet pipe 12 and the water outlet pipe 16 are vertically and symmetrically distributed, the water inlet pipe 12 is positioned above the water outlet pipe 16, the smoke inlet 14 and the smoke vent 9 are respectively communicated with the bottom and the top of the smoke cavity 17, the smoke inlet 14 and the smoke vent 9 are vertically and symmetrically distributed, high-temperature smoke enters the smoke cavity 17 through, inlet tube 12 and drain pipe 16 all are connected with water circulating equipment, rivers pass through inlet tube 12 and carry to the water cavity 5 inside, circulate through drain pipe 16, high temperature flue gas carries out the temperature exchange with tobacco pipe 6 and heat transfer board 8, the continuous circulation of the inside water of water cavity 5 simultaneously carries out the temperature exchange to tobacco pipe 6 and heat transfer board 8, the temperature that makes tobacco pipe 6 and heat transfer board 8 is less than the temperature of high temperature flue gas all the time, the heat of continuous absorption high temperature flue gas, carry out waste heat recovery, heat transfer board 8 can increase the area of contact with the flue gas, improve heat exchange efficiency, thereby waste heat recovery utilizes's purpose has been reached, and can effectually cool down the high temperature flue gas, reduce the vapor that produces when removing dust in the middle of water bath and spraying equipment.

When the heat recovery device is used, high-temperature flue gas enters a flue cavity 17 through a flue inlet pipe 15 and a flue inlet hole 14 and directly contacts with a flue pipe 6 and a heat exchange plate 8, a water inlet pipe 12 and a water outlet pipe 16 are both connected with water circulation equipment, water flow is conveyed to the inside of a water cavity 5 through the water inlet pipe 12 and circulates through the water outlet pipe 16, the high-temperature flue gas exchanges temperature with the flue pipe 6 and the heat exchange plate 8, meanwhile, the continuous circulation of water in the inside of the water cavity 5 exchanges temperature of the flue pipe 6 and the heat exchange plate 8, the temperature of the flue pipe 6 and the heat exchange plate 8 is always lower than that of the high-temperature flue gas, the continuous heat absorption of the high-temperature flue gas is carried out, the heat exchange plate 8 can increase the contact area with the flue gas, the heat exchange efficiency is improved.

In summary, in the wet dust collector for recovering waste heat of flue gas, high-temperature flue gas enters the flue cavity 17 through the flue gas inlet pipe 15 and the flue gas inlet hole 14 to directly contact the flue pipe 6 and the heat exchange plate 8, the water inlet pipe 12 and the water outlet pipe 16 are both connected with the water circulation device, water flow is conveyed to the inside of the water cavity 5 through the water inlet pipe 12 and circulates through the water outlet pipe 16, the high-temperature flue gas exchanges temperature with the flue pipe 6 and the heat exchange plate 8, meanwhile, water inside the water cavity 5 continuously circulates to exchange temperature of the flue pipe 6 and the heat exchange plate 8, so that the temperature of the flue pipe 6 and the heat exchange plate 8 is always lower than the temperature of the high-temperature flue gas, heat of the high-temperature flue gas is continuously absorbed, waste heat is recovered, the heat exchange plate 8 can increase the contact area with the flue gas, the heat exchange efficiency is improved, and the purpose of waste heat recovery and utilization is achieved, and the, when flue gas gets into the water bath and removes dust among the spraying equipment, the higher temperature of flue gas can make the quick inflation of inside atmospheric pressure, produces vapor etc. and does not utilize good heat recovery's problem.

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 phrase "comprising an … …" does not exclude the presence of other identical 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 a flue gas waste heat recovery wet dust collector, includes shell (1), its characterized in that: the improved cooking stove is characterized in that a vacuum cavity (2) is formed in the outer shell (1), a connecting column (3) located in the vacuum cavity (2) is fixedly mounted in the outer shell (1), an inner shell (4) is fixedly mounted on one side, far away from the outer shell (1), of the connecting column (3), a water cavity (5) is formed in the inner shell (4), a top cover (10) is fixedly mounted at the top of the outer shell (1), a bottom cover (13) is fixedly mounted at the bottom of the outer shell (1), a smoke tube (6) located on the inner side of the water cavity (5) is fixedly mounted between the top cover (10) and the bottom cover (13), a heat exchange plate (8) is fixedly mounted in the smoke tube (6), a heating cavity (7) communicated with the water cavity (5) is formed in the heat exchange plate (8), a smoke cavity (17) is formed in the smoke tube (6), and a smoke exhaust hole (9) communicated with the smoke cavity (17) is, the top fixed mounting of top cap (10) has smoke exhaust pipe (11) that is linked together with smoke exhaust hole (9), smoke inlet hole (14) have been seted up to the inside of bottom (13), the bottom fixed mounting of bottom (13) has advances tobacco pipe (15) that are linked together with smoke inlet hole (14), the right side fixed mounting of shell (1) has drain pipe (16), the right side fixed mounting of shell (1) has inlet tube (12).

2. The wet dust collector for recovering waste heat of flue gas as claimed in claim 1, wherein: the connecting columns (3) are distributed in the vacuum cavities (2) at equal intervals, and the vacuum cavities (2) are located between the outer shell (1) and the inner shell (4).

3. The wet dust collector for recovering waste heat of flue gas as claimed in claim 1, wherein: the water cavity (5) is positioned between the inner shell (4) and the smoke pipe (6), and the water inlet pipe (12) and the water outlet pipe (16) penetrate through and extend to the inside of the water cavity (5).

4. The wet dust collector for recovering waste heat of flue gas as claimed in claim 1, wherein: the water inlet pipe (12) and the water discharge pipe (16) are symmetrically distributed up and down, and the water inlet pipe (12) is positioned above the water discharge pipe (16).

5. The wet dust collector for recovering waste heat of flue gas as claimed in claim 1, wherein: the heat exchange plates (8) are distributed in an equidistant annular mode, and the heat exchange plates (8) are located on the inner side of the smoke cavity (17).

6. The wet dust collector for recovering waste heat of flue gas as claimed in claim 1, wherein: the smoke inlet holes (14) and the smoke exhaust holes (9) are respectively communicated with the bottom and the top of the smoke cavity (17), and the smoke inlet holes (14) and the smoke exhaust holes (9) are vertically and symmetrically distributed.