CN219473718U

CN219473718U - Boiler waste heat recovery device

Info

Publication number: CN219473718U
Application number: CN202320590784.2U
Authority: CN
Inventors: 郝建强; 金光浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-08-04
Anticipated expiration: 2033-03-23

Abstract

The utility model discloses a boiler waste heat recovery device, which relates to the technical field of waste heat recovery, and comprises a boiler body, a smoke exhaust pipe and a waste heat recovery box, wherein the smoke exhaust pipe is arranged on the boiler body, the other end of the smoke exhaust pipe is connected with the top of the waste heat recovery box, a metal coil is arranged in the waste heat recovery box, and a metal fin is arranged on the surface of the metal coil.

Description

Boiler waste heat recovery device

Technical Field

The utility model relates to the technical field of waste heat recovery, in particular to a boiler waste heat recovery device.

Background

When waste heat recovery is carried out on a boiler in a thermal power plant, the mode generally adopted is to directly guide out and utilize the flue gas exhausted by the boiler, but harmful substances are contained in the flue gas exhausted by the boiler, and filtering equipment is generally required to be used for filtering the flue gas.

By searching, patent application publication number CN 115183260A discloses a boiler waste heat recovery device comprising: the boiler comprises a boiler body, a smoke exhaust pipe, a filtering mechanism, a smoke guide pipe, a control opening and closing mechanism and a heat exchange water tank; the smoke exhaust pipe is communicated with the boiler body, the air inlet end of the smoke guide pipe is connected with the smoke exhaust pipe in an on-off mode through the control opening and closing mechanism, and the air outlet end of the smoke guide pipe is communicated with the heat exchange water tank; the filter mechanism is arranged on the smoke exhaust pipe at the middle part of the control opening and closing mechanism and the boiler body. The utility model realizes the functions of filtering flue gas and controlling the opening and closing of the waste heat recovery mechanism, and the filtering mechanism with the replaceable solid medium filler is arranged on the flue gas exhaust pipe, so that harmful substances in the flue gas can be filtered out and the filtering equipment can be cleaned conveniently, but the disclosed technology firstly filters the flue gas in the flue gas exhaust pipe and then carries out waste heat recovery (combined with the attached drawing of the specification), when the flue gas is filtered, the heat of the flue gas can be dissipated outwards through a pipeline, thus the waste heat recovery effect is greatly reduced, in addition, the flue gas filtering structure is arranged on the flue gas exhaust pipe above the boiler, and personnel need to climb to the upper part of the boiler to operate when the filtering structure is detached, so that the technology is very inconvenient and unsafe, and the prior art is improved to solve the technical problems.

Disclosure of Invention

The utility model aims to provide a boiler waste heat recovery device for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a boiler waste heat recovery device, includes boiler body, exhaust pipe and waste heat recovery case, install the exhaust pipe on the boiler body, the other end and the waste heat recovery case top of exhaust pipe are connected, install metal coil in the waste heat recovery case, metal coil's surface mounting has metal fin, metal coil's top communicates with the exhaust pipe, metal coil's bottom is connected with the connecting pipe, the end cover is installed to the bottom of connecting pipe, the bottom of end cover is provided with the smoke and dust filter vat, the landing leg is installed to the bottom of smoke and dust filter vat, install joint subassembly on the smoke and dust filter vat, joint subassembly and the cardboard joint of installing on the end cover, install filter bag in the smoke and dust filter vat, exhaust fan is installed to the side lower part of smoke and dust filter vat.

As a further scheme of the utility model: the lower part and the upper part of one side surface of the waste heat recovery box are respectively provided with a cold water inlet pipe and a hot water outlet pipe.

As still further aspects of the utility model: the filter cloth bag is provided with a metal bag ring, the smoke dust filter barrel is internally provided with a check ring, and the metal bag ring is arranged on the check ring.

As still further aspects of the utility model: a hand lever is arranged in the middle of the metal bag ring.

As still further aspects of the utility model: the clamping assembly comprises a handle, a first clamping column and a second clamping column, two ends of the handle are hinged to the smoke dust filter barrel, the first clamping column and the second clamping column are mounted on the outer sides of two ends of the handle, and the first clamping column and the second clamping column are clamped with clamping grooves formed in the clamping plate.

As still further aspects of the utility model: four brake casters are arranged at the bottom of the smoke dust filter barrel.

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

1. according to the utility model, the waste heat recovery is performed on the boiler flue gas, and then the flue gas is filtered, so that compared with the prior art that the flue gas is filtered and then the waste heat recovery is performed, the waste heat recovery device can reduce the loss of the flue gas heat, and has a better waste heat recovery effect.

2. According to the utility model, the smoke dust filter barrel is arranged at the bottom of the preheating recovery box through the clamping assembly, and can be disassembled and cleaned without climbing by personnel.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a boiler waste heat recovery device.

Fig. 2 is a schematic view of a partial structure of a boiler waste heat recovery apparatus.

Fig. 3 is a schematic view of the internal structure of the smoke filtering barrel in fig. 1 of a boiler waste heat recovery device.

1. A boiler body; 2. a smoke exhaust pipe; 3. a waste heat recovery box; 4. a metal coil; 5. a metal fin; 6. a smoke filtering barrel; 7. cold water inlet pipe; 8. a hot water outlet pipe; 9. a connecting pipe; 10. an end cap; 11. a clamping plate; 12. a support leg; 13. filtering the cloth bag; 14. a hand lever; 15. a retainer ring; 16. a clamping assembly; 1601. a handle; 1602. a first clamping column; 1603. a second clamping column; 17. an exhaust fan; 18. braking casters; 19. a metal bag ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, in an embodiment of the utility model, a boiler waste heat recovery device includes a boiler body 1, a smoke exhaust pipe 2 and a waste heat recovery box 3, the smoke exhaust pipe 2 is installed on the boiler body 1, the other end of the smoke exhaust pipe 2 is connected with the top of the waste heat recovery box 3, a cold water inlet pipe 7 and a hot water outlet pipe 8 are installed at the lower part and the upper part of one side surface of the waste heat recovery box 3, a metal coil 4 is installed in the waste heat recovery box 3, a metal fin 5 is installed on the surface of the metal coil 4, and the heat dissipation area of the metal coil 4 can be increased by the arrangement of the metal fin 5, so that the heat exchange efficiency is higher.

Referring to fig. 1-3, the top and the exhaust pipe 2 intercommunication of metal coil 4, the bottom of metal coil 4 is connected with connecting pipe 9, end cover 10 is installed to the bottom of connecting pipe 9, the bottom of end cover 10 is provided with smoke and dust filter vat 6, landing leg 12 is installed to the bottom of smoke and dust filter vat 6, four brake casters 18 are installed to the bottom of smoke and dust filter vat 6, brake casters 18's setting can make things convenient for personnel to stimulate smoke and dust filter vat 6 and remove, make personnel clear up dust impurity in the smoke and dust filter vat 6 more laborsaving, install joint subassembly 16 on the smoke and dust filter vat 6, joint subassembly 16 and the cardboard 11 joint of installing on end cover 10, joint subassembly 16 includes handle 1601, first clamping column 1602 and second clamping column 1603, handle both ends 1601 are articulated with smoke and dust filter vat 6, first clamping column 1602 and second clamping column 1603 are all installed in the both ends outside of handle 1601, install the draw-in groove joint of seting up on the clamping plate 11, install filter bag 13 in smoke and dust filter vat 6, install filter bag 13 in the side lower part of smoke and dust filter vat 6, install fan 17 in the side face down of dust filter vat 6, install the retaining ring 17 outside the retaining ring 19 is connected with the metal bag 19 from outside the outer diameter of the inner diameter of the metal bag 19, and the outer diameter of the inner diameter of the metal bag 19 is provided with the filter bag 19, and the inner diameter of the inner filter bag 19 is convenient to be connected with the inner diameter of the metal filter bag 19, and the inner diameter of the inner filter bag 19 is connected with the inner diameter of the inner filter bag 19.

The working principle of the utility model is as follows:

during the use, boiler flue gas gets into waste heat recovery case 3 at first through exhaust pipe 2 in, the flue gas slowly moves down in metal coil 4, carry out the heat exchange with the water body that pours into waste heat recovery case 3 into, heated water body is discharged through hot water exit tube 8 and is used for personnel's production life, flue gas then gets into in the smoke and dust filter vat 6 through connecting pipe 9 under exhaust fan 17's suction, filter sack 13 in the smoke and dust filter vat 6 filters dust and impurity, then clean gas outwards discharges through exhaust fan 17, when need clear up dust and impurity in the smoke and dust filter vat 6, personnel only need handheld handle 1601 pull upward gas for first clamping column 1602 and second clamping column 1603 break away from in the draw-in groove of cardboard 11, then smoke and dust filter vat 6 just can touch the ground, can directly pull out it from end cover 10 bottom and clear up, after the clearance, pull handle 1601 to the highest position and push into end cover 10 under with smoke and dust filter vat 6, make first clamping column 1602 and second clamping column 1603 get into cardboard groove 16011, the clamping column 1601 and the clamping column 16011 can be rotated simultaneously with the second clamping column 16011 and can be fixed in the end cover 10 through the clamp body, can be rotated together with the first clamping column 1601 and the second clamping column 1603 and the end cover is fixed.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a boiler waste heat recovery device, includes boiler body (1), exhaust pipe (2) and waste heat recovery case (3), its characterized in that: install on boiler body (1) and arrange tobacco pipe (2), the other end of arranging tobacco pipe (2) is connected with waste heat recovery case (3) top, install metal coil (4) in waste heat recovery case (3), the surface mounting of metal coil (4) has metal fin (5), the top and the tobacco pipe (2) intercommunication of metal coil (4), the bottom of metal coil (4) is connected with connecting pipe (9), end cover (10) are installed to the bottom of connecting pipe (9), the bottom of end cover (10) is provided with smoke and dust filter vat (6), landing leg (12) are installed to the bottom of smoke and dust filter vat (6), install joint subassembly (16) on smoke and dust filter vat (6), joint subassembly (16) and cardboard (11) joint of installing on end cover (10), install filter bag (13) in smoke and dust filter vat (6), exhaust fan (17) are installed to the side lower part of smoke and dust filter vat (6).

2. The boiler waste heat recovery device according to claim 1, wherein: the lower part and the upper part of one side surface of the waste heat recovery box (3) are respectively provided with a cold water inlet pipe (7) and a hot water outlet pipe (8).

3. The boiler waste heat recovery device according to claim 1, wherein: the filter cloth bag (13) is provided with a metal bag ring (19), the smoke dust filter barrel (6) is internally provided with a check ring (15), and the metal bag ring (19) is arranged on the check ring (15).

4. A boiler waste heat recovery apparatus according to claim 3, wherein: a hand lever (14) is arranged in the middle of the metal bag ring (19).

5. The boiler waste heat recovery device according to claim 1, wherein: the clamping assembly (16) comprises a handle (1601), a first clamping column (1602) and a second clamping column (1603), two ends of the handle (1601) are hinged to a smoke dust filter drum (6), the first clamping column (1602) and the second clamping column (1603) are mounted on the outer sides of two ends of the handle (1601), and the first clamping column (1602) and the second clamping column (1603) are clamped with clamping grooves formed in the clamping plate (11).

6. The boiler waste heat recovery device according to claim 1, wherein: four brake casters (18) are arranged at the bottom of the smoke dust filter barrel (6).