CN215782679U

CN215782679U - Energy-concerving and environment-protective boiler waste heat utilization equipment for heat recovery

Info

Publication number: CN215782679U
Application number: CN202122224825.XU
Authority: CN
Inventors: 侯广州
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-11
Anticipated expiration: 2031-09-15

Abstract

The utility model belongs to the technical field of waste heat utilization, and particularly relates to energy-saving and environment-friendly waste heat utilization equipment for boiler heat energy recovery, which comprises a boiler body, a flue gas pipe and a flue gas utilization assembly; the top of the boiler body is provided with an exhaust pipe; one end of the flue gas is arranged at the end part of the exhaust pipe, and the other end of the flue gas extends into the flue gas utilization assembly; the flue gas utilization assembly is arranged on the outer side wall of the boiler body; the smoke utilization assembly comprises a water storage tank, a treatment tank and a treatment mechanism; the water storage tank is fixedly connected to the outer side wall of the boiler body; the treatment box is fixedly connected to the outer side wall of the water storage tank; the processing mechanism is arranged in the processing box; the smoke pipe penetrates through the water storage tank, the smoke pipe is U-shaped in the water storage tank, and the end part of the smoke pipe extends into the treatment tank; the flue gas is purified by the treatment mechanism, so that the direct emission of the flue gas to pollute the environment is avoided.

Description

Energy-concerving and environment-protective boiler waste heat utilization equipment for heat recovery

Technical Field

The utility model relates to the technical field of waste heat utilization, in particular to energy-saving and environment-friendly waste heat utilization equipment for boiler heat energy recovery.

Background

The hot water or steam produced in the boiler can directly provide heat energy required for industrial production and people's life, and can produce waste gas in the use of the boiler, and the waste gas usually has waste heat, and is usually used by utilizing the cooperation of a waste heat recovery device.

In the prior art, waste gas generated by a boiler has waste heat, more impurity pollutants and pollutant gas exist in the waste gas, the conventional waste heat recovery device only utilizes the heat of the waste gas, a device for treating the pollutant gas in the waste gas is lacked, and the waste gas after being discharged pollutes the atmospheric environment, so that the waste heat utilization equipment for recovering the heat energy of the boiler, which is energy-saving and environment-friendly, is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an energy-saving and environment-friendly waste heat utilization device for boiler heat energy recovery, which aims to make up for the defects of the prior art and solve the problems that the prior waste heat recovery device only utilizes the heat of waste gas, lacks a device for treating polluting gas in the waste gas and pollutes the atmospheric environment after the waste gas is discharged.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to an energy-saving and environment-friendly waste heat utilization device for boiler heat energy recovery, which comprises a boiler body, a flue gas pipe and a flue gas utilization assembly, wherein the boiler body is provided with a heat pipe; the top of the boiler body is provided with an exhaust pipe; one end of the flue gas is arranged at the end part of the exhaust pipe, and the other end of the flue gas extends into the flue gas utilization assembly; the flue gas utilization assembly is arranged on the outer side wall of the boiler body; the smoke utilization assembly comprises a water storage tank, a treatment tank and a treatment mechanism; the water storage tank is fixedly connected to the outer side wall of the boiler body; the treatment box is fixedly connected to the outer side wall of the water storage tank; the processing mechanism is arranged in the processing box; the smoke pipe penetrates through the water storage tank, the smoke pipe is U-shaped in the water storage tank, and the end part of the smoke pipe extends into the treatment tank; the flue gas is purified by the treatment mechanism, so that the direct emission of the flue gas to pollute the environment is avoided.

Preferably, the treatment mechanism comprises a baffle plate, a water pump and a water spray nozzle; the baffle is fixedly connected to the inner side wall of the treatment box; the water spray nozzle is fixedly connected to the bottom of the baffle; the water pump is fixedly connected to the top of the treatment box, the input end of the water pump is fixedly connected with a water inlet pipe, and the output end of the water pump is fixedly connected with a water outlet pipe; the end part of the water inlet pipe extends into the treatment box, and the water outlet pipe is communicated with the inside of the water spray nozzle; the ammonia water reacts with sulfur dioxide gas in the flue gas to generate sediment, the water pump is started, the ammonia water is sprayed out through the water spray nozzle, and the ammonia water reacts with escaped flue gas again, so that the purification effect on the flue gas is better.

Preferably, the outer side wall of the treatment box is fixedly connected with a motor; the output end of the motor is fixedly connected with a rotating shaft; a plurality of stirring plates are fixedly connected to the outer side wall of the rotating shaft; the motor drives the rotating shaft and the stirring plate to rotate, and then the ammonia water is stirred, so that the flue gas and the ammonia water are fully reacted.

Preferably, a filter screen is fixedly connected to the inner side wall of the treatment box; the top of the baffle is provided with a step through hole; an activated carbon plate is arranged in the stepped through hole; an insulating layer is arranged inside the side wall of the water storage tank; the filter screen filters the bigger particulate matter in the flue gas, and the active carbon board adsorbs the absorption to the foreign particles in the flue gas to get rid of the granule impurity in the flue gas.

Preferably, a first flange plate is fixedly connected to the outer side wall of the exhaust pipe; a second flange plate is fixedly connected to the outer side of the flue gas pipe, and the flue gas pipe is inserted into the exhaust pipe; the first flange plate is connected with the second flange plate through a screw; fix first ring flange and second ring flange through the screw, and then accomplish the installation of flue gas pipe, the installation and the dismantlement of flue gas pipe of being convenient for.

Preferably, a groove is formed in the outer side wall of the flue gas pipe; a sealing ring is fixedly connected to the inner side wall of the groove; a sewage discharge pipe is fixedly connected to the outer side wall of the treatment box, and an exhaust gas pipe is fixedly connected to the top of the treatment box; when the flue gas pipe is inserted into the exhaust pipe, the inner side wall of the exhaust pipe extrudes the sealing ring, so that the sealing ring is deformed under pressure, the connection part of the flue gas pipe and the exhaust pipe has better sealing performance, and the leakage of flue gas is avoided.

The utility model has the advantages that:

1. according to the utility model, the temperature of the flue gas is transferred through the flue gas pipe, the water in the water storage tank is heated through the heat of the flue gas, so that the waste heat of the flue gas can be utilized, the ammonia water is filled in the treatment tank, when the flue gas enters the treatment tank through the flue gas pipe, the flue gas is contacted with the ammonia water, and the ammonia water reacts with the sulfur dioxide gas in the flue gas to generate a precipitate, so that the effect of removing the sulfur dioxide gas is achieved, the water pump is started, the ammonia water is sprayed out through the water spray nozzle by the water pump, so that the ammonia water reacts with the escaped flue gas again, and the purification effect of the flue gas sulfur dioxide gas is better;

2. according to the utility model, the starting motor drives the rotating shaft and the stirring plate to rotate, so that the flue gas and the ammonia water are in full contact reaction, the flue gas passes through the filter screen and the activated carbon plate after being subjected to desulfurization treatment by the ammonia water, the filter screen filters larger particles in the flue gas, and the activated carbon plate adsorbs and absorbs impurity particles in the flue gas, so that particle impurities in the flue gas are removed, the atmosphere pollution caused by the discharged flue gas is avoided, and the environment is protected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a partial cross-sectional view of a first embodiment;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a schematic three-dimensional structure of a baffle plate and an activated carbon plate according to a first embodiment;

FIG. 5 is a schematic three-dimensional structure of a baffle plate and an activated carbon plate in the second embodiment.

In the figure: 1. a boiler body; 11. an exhaust pipe; 12. a first flange plate; 2. a flue gas pipe; 21. a second flange plate; 22. a groove; 23. a seal ring; 3. a flue gas utilization assembly; 31. a water storage tank; 311. a heat-insulating layer; 32. a treatment tank; 321. a blow-off pipe; 322. an exhaust gas pipe; 33. a processing mechanism; 331. a baffle plate; 332. a water pump; 333. a water spray nozzle; 334. a water inlet pipe; 335. a water outlet pipe; 336. a stepped through hole; 337. an activated carbon plate; 338. a rubber pad; 34. a motor; 341. a rotating shaft; 342. a stirring plate; 35. and (4) a filter screen.

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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-4, an energy-saving and environment-friendly waste heat utilization device for boiler heat energy recovery comprises a boiler body 1, a flue gas pipe 2 and a flue gas utilization assembly 3; the top of the boiler body 1 is provided with an exhaust pipe 11; one end of the flue gas is arranged at the end part of the exhaust pipe 11, and the other end of the flue gas extends into the flue gas utilization assembly 3; the flue gas utilization assembly 3 is arranged on the outer side wall of the boiler body 1; the smoke utilization assembly 3 comprises a water storage tank 31, a treatment tank 32 and a treatment mechanism 33; the water storage tank 31 is fixedly connected to the outer side wall of the boiler body 1; the treatment box 32 is fixedly connected to the outer side wall of the water storage box 31; the processing mechanism 33 is disposed inside the processing box 32; the flue gas pipe 2 penetrates through the water storage tank 31, the flue gas pipe 2 is U-shaped inside the water storage tank 31, and the end part of the flue gas pipe 2 extends into the treatment tank 32; the during operation, install flue gas pipe 2 on blast pipe 11, when carrying out the emission of flue gas, open the valve on the flue gas pipe 2, make the flue gas get into in flue gas pipe 2, the flue gas that boiler body 1 discharged has higher temperature, when the flue gas flows in flue gas pipe 2, the temperature of flue gas carries out the heat transfer through flue gas pipe 2, and then make the heat of flue gas heat the water in the storage water tank 31, make the flue gas waste heat can utilize, and carry out purification treatment to the flue gas through handling mechanism 33, avoid the direct discharge polluted environment of flue gas.

The treatment mechanism 33 comprises a baffle 331, a water pump 332 and a water spray nozzle 333; the baffle 331 is fixedly connected on the inner side wall of the treatment box 32; the water spray nozzle 333 is fixedly connected to the bottom of the baffle 331; the water pump 332 is fixedly connected to the top of the treatment tank 32, the input end of the water pump 332 is fixedly connected with a water inlet pipe 334, and the output end of the water pump 332 is fixedly connected with a water outlet pipe 335; the end part of the water inlet pipe 334 extends into the treatment box 32, and the water outlet pipe 335 is communicated with the inside of the water nozzle 333; the during operation is equipped with the aqueous ammonia in handling the case 32, when the flue gas passes through flue gas pipe 2 and gets into in handling case 32, the flue gas contacts with the aqueous ammonia, through the aqueous ammonia with the sulfur dioxide gas reaction in the flue gas generate the sediment, start water pump 332, water pump 332 carries the aqueous ammonia to outlet pipe 335 through inlet tube 334, and then spout through water spout 333 for the aqueous ammonia reacts once more with the flue gas of effusion, thereby makes the purifying effect to the flue gas better.

The outer side wall of the treatment box 32 is fixedly connected with a motor 34; the output end of the motor 34 is fixedly connected with a rotating shaft 341; a plurality of stirring plates 342 are fixedly connected to the outer side wall of the rotating shaft 341; during operation, starter motor 34, motor 34 drive pivot 341 rotates, and pivot 341 rotates the in-process and drives stirring board 342 and stir the aqueous ammonia for the flue gas carries out abundant contact with the aqueous ammonia, and then makes aqueous ammonia and sulfur dioxide gas carry out abundant reaction.

A filter screen 35 is fixedly connected to the inner side wall of the treatment box 32; the top of the baffle 331 is provided with a step through hole 336; an activated carbon plate 337 is arranged in the stepped through hole 336; a heat insulation layer 311 is arranged inside the side wall of the water storage tank 31; during operation, successively pass through filter screen 35 and activated carbon plate 337 after the desulfurization of aqueous ammonia is handled to the flue gas, filter screen 35 filters the great particulate matter in the flue gas, and activated carbon plate 337 adsorbs the absorption to the foreign particle in the flue gas to get rid of the granule impurity in the flue gas, avoid causing the atmosphere pollution, the environmental protection, setting up of heat preservation 311 makes storage water tank 31 have good heat preservation effect.

A first flange plate 12 is fixedly connected to the outer side wall of the exhaust pipe 11; a second flange 21 is fixedly connected to the outer side of the flue gas pipe 2, and the flue gas pipe 2 is inserted into the exhaust pipe 11; the first flange plate 12 is connected with the second flange plate 21 through screws; during operation, when carrying out flue gas pipe 2 and exhaust pipe 11's installation, insert inside exhaust pipe 11 with flue gas pipe 2 tip for first ring flange 12 and the contact of second ring flange 21, and fix first ring flange 12 and second ring flange 21 through the screw, and then accomplish flue gas pipe 2's installation, the installation and the dismantlement of the flue gas pipe 2 of being convenient for.

A groove 22 is formed in the outer side wall of the flue gas pipe 2; a sealing ring 23 is fixedly connected to the inner side wall of the groove 22; a sewage discharge pipe 321 is fixedly connected to the outer side wall of the treatment box 32, and an exhaust gas pipe 322 is fixedly connected to the top of the treatment box 32; during operation, when flue gas pipe 2 inserts in the

blast pipe

11, 11 inside walls of blast pipe extrude sealing washer 23, and sealing washer 23 pressurized deformation, and then make

flue gas pipe

2 and 11 junction of blast pipe have better leakproofness, avoid revealing of flue gas, and flue gas pipe 322 is used for discharging the flue gas after handling, and blow off pipe 321 is arranged in discharging the solution of handling the case 32.

Example two

Referring to fig. 5, in a first comparative example, as another embodiment of the present invention, a rubber pad 338 is fixed on an inner sidewall of the stepped through hole 336; during operation, when placing activated carbon plate 337 in ladder through-hole 336, activated carbon plate 337 lateral wall extrusion rubber pad 338 for rubber pad 338 pressurized deformation, thereby carry out the chucking to activated carbon plate 337 through rubber pad 338, make placing of activated carbon plate 337 in ladder through-hole 336 more stable.

The working principle is that the end part of a flue gas pipe 2 is inserted into an exhaust pipe 11, so that a first flange 12 is contacted with a second flange 21, the first flange 12 and the second flange 21 are fixed through screws, and then the flue gas pipe 2 is installed, when the flue gas pipe 2 is inserted into the exhaust pipe 11, the inner side wall of the exhaust pipe 11 presses a sealing ring 23, the sealing ring 23 is deformed under pressure, so that the connection part of the flue gas pipe 2 and the exhaust pipe 11 has better sealing performance, and the leakage of flue gas is avoided, when the flue gas is discharged, a valve on the flue gas pipe 2 is opened, so that the flue gas enters the flue gas pipe 2, the flue gas discharged by a boiler body 1 has higher temperature, when the flue gas flows in the flue gas pipe 2, the temperature of the flue gas is subjected to heat transfer through the flue gas pipe 2, and further the heat of the flue gas heats water in a water storage tank 31, so that the waste heat of the flue gas is utilized, the arrangement of the heat preservation layer 311 reduces heat dissipation, so that the water storage tank 31 has a good heat preservation effect, the flue gas in the flue gas pipe 2 finally enters the treatment tank 32 through the end part of the flue gas pipe 2, ammonia water is filled in the treatment tank 32, when the flue gas enters the treatment tank 32 through the flue gas pipe 2, the flue gas contacts with the ammonia water, a precipitate is generated through the reaction of the ammonia water and sulfur dioxide gas in the flue gas, the motor 34 is started, the motor 34 drives the rotating shaft 341 to rotate, the rotating shaft 341 drives the stirring plate 342 to stir the ammonia water in the rotating process, the flue gas fully contacts with the ammonia water, so that the ammonia water fully reacts with the sulfur dioxide gas in the flue gas, the water pump 332 is started, the ammonia water is conveyed to the water outlet pipe 335 through the water inlet pipe 334 by the water pump 332, and is sprayed out through the water spray nozzle 333, the ammonia water reacts with the escaped flue gas again, so that the purification effect of the flue gas is better, when the flue gas is subjected to desulfurization treatment by the ammonia water, the filter screen 35 and the activated carbon plate 337, the filter screen 35 filters the great particulate matter in the flue gas, and the foreign particles of activated carbon plate 337 in to the flue gas adsorbs the absorption to get rid of the particle impurity in the flue gas, the flue gas of avoiding discharging causes the atmosphere pollution, the environmental protection, and the setting up of rubber pad 338 makes placing of activated carbon plate 337 more stable.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides an energy-concerving and environment-protective boiler waste heat utilization equipment for heat recovery which characterized in that: comprises a boiler body (1), a flue gas pipe (2) and a flue gas utilization assembly (3); the top of the boiler body (1) is provided with an exhaust pipe (11); one end of the flue gas is arranged at the end part of the exhaust pipe (11), and the other end of the flue gas extends into the flue gas utilization assembly (3); the flue gas utilization assembly (3) is arranged on the outer side wall of the boiler body (1);

the smoke utilization assembly (3) comprises a water storage tank (31), a treatment tank (32) and a treatment mechanism (33); the water storage tank (31) is fixedly connected to the outer side wall of the boiler body (1); the treatment box (32) is fixedly connected to the outer side wall of the water storage tank (31); the processing mechanism (33) is arranged inside the processing box (32); inside flue gas pipe (2) passed storage water tank (31), flue gas pipe (2) are the U-shaped in storage water tank (31) inside, and the tip of flue gas pipe (2) stretches into inside handling case (32).

2. The energy-saving and environment-friendly waste heat utilization device for recovering the heat energy of the boiler as claimed in claim 1, is characterized in that: the treatment mechanism (33) comprises a baffle (331), a water pump (332) and a water spray nozzle (333); the baffle (331) is fixedly connected on the inner side wall of the treatment box (32); the water spray nozzle (333) is fixedly connected to the bottom of the baffle plate (331); the water pump (332) is fixedly connected to the top of the treatment tank (32), the input end of the water pump (332) is fixedly connected with a water inlet pipe (334), and the output end of the water pump (332) is fixedly connected with a water outlet pipe (335); the end part of the water inlet pipe (334) extends into the inside of the treatment box (32), and the water outlet pipe (335) is communicated with the inside of the water spray nozzle (333).

3. The energy-saving and environment-friendly waste heat utilization device for recovering the heat energy of the boiler as claimed in claim 2, is characterized in that: the outer side wall of the treatment box (32) is fixedly connected with a motor (34); the output end of the motor (34) is fixedly connected with a rotating shaft (341); the outer side wall of the rotating shaft (341) is fixedly connected with a plurality of stirring plates (342).

4. The energy-saving and environment-friendly waste heat utilization device for recovering the heat energy of the boiler as claimed in claim 3, is characterized in that: a filter screen (35) is fixedly connected to the inner side wall of the treatment box (32); the top of the baffle (331) is provided with a step through hole (336); an activated carbon plate (337) is arranged in the stepped through hole (336); and a heat insulation layer (311) is arranged inside the side wall of the water storage tank (31).

5. The energy-saving and environment-friendly waste heat utilization device for recovering the heat energy of the boiler as claimed in claim 4, is characterized in that: a first flange plate (12) is fixedly connected to the outer side wall of the exhaust pipe (11); a second flange plate (21) is fixedly connected to the outer side of the flue gas pipe (2), and the flue gas pipe (2) is inserted into the exhaust pipe (11); the first flange plate (12) is connected with the second flange plate (21) through screws.

6. The energy-saving and environment-friendly waste heat utilization device for recovering the heat energy of the boiler as claimed in claim 5, is characterized in that: a groove (22) is arranged on the outer side wall of the flue gas pipe (2); a sealing ring (23) is fixedly connected to the inner side wall of the groove (22); the outer side wall of the treatment box (32) is fixedly connected with a sewage discharge pipe (321), and the top of the treatment box (32) is fixedly connected with an exhaust pipe (322).