CN223449050U - A flue gas waste heat recovery device that is easy to clean - Google Patents

Abstract

The utility model discloses a flue gas waste heat recovery device convenient to clean, which relates to the technical field of waste heat recovery and comprises a box body, wherein a plurality of heat exchange tubes are fixedly arranged in the box body, a plurality of scraping rods are rotatably arranged in the box body and are contacted with the plurality of heat exchange tubes, a mounting box is rotatably arranged in the box body, a plurality of connecting rods are fixedly arranged in the mounting box, a plurality of belt wheels are rotatably arranged on the plurality of connecting rods in the mounting box, a motor for driving one belt wheel to rotate is fixedly arranged in the mounting box, two adjacent belt wheels are connected through belt transmission, the circle centers of the plurality of belt wheels and the axle centers of the plurality of heat exchange tubes are positioned on the same horizontal line, and the technical problems that after the device is used for a long time, the outer wall of a pipeline is scaled, so that the heat exchange efficiency is reduced and the waste heat recovery effect is affected are effectively solved.

Description

Flue gas waste heat recovery device convenient to clearance

Technical Field

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

Background

The boiler system can produce high temperature flue gas in the operation in-process, if directly discharges the flue gas to the external world, can cause the wasting of resources. The existing waste heat recovery system generally utilizes high-temperature flue gas to exchange heat with water, so that hot water is continuously generated, and waste heat recovery is realized.

However, in practical application, because the flue gas also contains a large amount of dust impurities, scaling on the outer wall of the pipeline can be caused for a long time, so that the heat exchange efficiency is reduced, and the effect of waste heat recovery is greatly influenced.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a flue gas waste heat recovery device convenient to clean, and solves the technical problems in the prior art.

The flue gas waste heat recovery device comprises a box body, wherein a plurality of heat exchange tubes are fixedly arranged in the box body, a plurality of scraping rods are rotatably arranged in the box body and are contacted with the heat exchange tubes, an installation box is arranged in the box body, a plurality of connecting rods are fixedly arranged in the installation box, a plurality of belt wheels are rotatably arranged on the plurality of connecting rods in the installation box, a motor for driving one belt wheel to rotate is fixedly arranged in the installation box, two adjacent belt wheels are connected through belt transmission, the centers of the belt wheels and the axes of the heat exchange tubes are positioned on the same horizontal line, a plurality of annular grooves are formed in one side wall of the installation box, and one ends of the scraping rods penetrate through the annular grooves and are fixedly connected with the belt wheels.

Preferably, the top of the tank body is fixedly provided with a water collecting cover, the top of the water collecting cover is fixedly provided with a water tank, the water outlet end of the water tank is communicated with the water collecting cover, the water collecting cover is fixedly provided with a plurality of spray heads, and the water outlet ends of the spray heads extend into the tank body.

Preferably, the box body far away from one side of the installation box is fixedly provided with a filter box, and the filter box is internally provided with a filter plate in a detachable mode.

Preferably, the filter box is fixedly connected with a smoke inlet pipe.

Preferably, the top wall of the box body is fixedly connected with a smoke outlet pipe.

Preferably, the bottom of the box body is fixedly connected with a trash discharging pipe.

Advantageous effects

The utility model provides a flue gas waste heat recovery device convenient to clean, which has the following beneficial effects:

1. the flue gas heat exchange can be realized by installing a plurality of heat exchange tubes, the scraping rods are arranged, impurities on the outer walls of the heat exchange tubes can be scraped by rotating the scraping rods, the installation box is arranged so as to be convenient for installing the belt wheels and the belt in the installation box, the motor is arranged, the starting motor can drive one belt wheel to rotate, the belt can be driven to rotate by being connected with the belt through the belt wheel in a transmission manner, the belt wheels can be driven to rotate together, the scraping rods can be driven to rotate, the impurities of the heat exchange tubes can be scraped, the phenomenon that the impurities cover the tube wall and the heat exchange effect of the heat exchange tubes is affected can be effectively avoided;

2. Through installing the water tank, open the valve on the water tank, can discharge the water in the water tank to the cover that catchments in, through installing the shower nozzle, can spout the water accessible shower nozzle in the cover that catchments to the heat exchange tube on to can further wash the heat exchange tube.

Drawings

Fig. 1 is a schematic diagram of the front internal structure of the present utility model.

In the figure, 1, a box body, 2, a heat exchange tube, 3, a scraping rod, 4, a filter box, 5, a trash discharge tube, 6, a mounting box, 7, a belt pulley, 8, a belt, 9, a water tank, 10, a water collecting cover, 11, a spray head, 12, a motor, 13, an annular groove, 14, a filter plate, 15, a smoke inlet tube, 16 and a smoke outlet tube.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, where the terms of "upper", "lower", etc. mentioned herein refer to the orientation of fig. 1.

Referring to fig. 1, the utility model provides a technical scheme that a flue gas waste heat recovery device convenient to clean comprises a box body 1; a plurality of heat exchange tubes 2 are fixedly arranged in the box body 1, a plurality of scraping rods 3 are rotatably arranged in the box body 1, the plurality of scraping rods 3 are in contact with the plurality of heat exchange tubes 2, a mounting box 6 is arranged in the box body 1, a plurality of connecting rods are fixedly arranged in the mounting box 6, a plurality of belt wheels 7 are rotatably arranged on the plurality of connecting rods in the mounting box 6, a motor 12 for driving one belt wheel 7 to rotate is fixedly arranged in the mounting box 6, two adjacent belt wheels 7 are in transmission connection through a belt 8, the centers of the plurality of belt wheels 7 and the axes of the plurality of heat exchange tubes 2 are positioned on the same horizontal line, a plurality of annular grooves 13 are formed in one side wall of the mounting box 6, one ends of the plurality of scraping rods 3 penetrate through the annular grooves 13 and are fixedly connected with the plurality of belt wheels 7, and flue gas heat exchange can be realized through the plurality of heat exchange tubes 2, the heat exchange tubes 2 are vertically arranged in the side wall of the box body 1, a plurality of heat exchange tubes 2 in the box body 1 are all connected with the vertically arranged heat exchange tubes 2, the vertically arranged heat exchange tubes 2 are externally connected with a water inlet pipe, water can be introduced into the heat exchange tubes 2 through the water inlet pipe, the other end of one heat exchange tube 2 in the box body 1 extends out of the box body 1 and is provided with a valve so as to control the water in the heat exchange tubes 2 to be discharged, the heat exchange tubes 2 are arranged, the scraping rods 3 are arranged, impurities on the outer walls of the plurality of heat exchange tubes 2 can be scraped by rotating the scraping rods 3, the belt wheels 7 and the belt 8 are conveniently arranged in the installation box 6 by arranging the installation box 6, the belt wheels 7 can be driven to rotate by the starting motor 12, the belt 8 can be driven to rotate by the driving connection of the belt wheels 7 and the belt 8, thereby can drive a plurality of band pulleys 7 and rotate together to can drive a plurality of scrapers 3 and rotate, and then can strike off heat exchange tube 2 impurity, can effectively avoid impurity to cover the pipe wall, influence heat exchange tube 2's heat transfer effect.

Further, the water collecting cover 10 is fixedly installed at the top of the box body 1, the water tank 9 is fixedly installed at the top of the water collecting cover 10, the water outlet end of the water tank 9 is communicated with the water collecting cover 10, the spray heads 11 are fixedly installed on the water collecting cover 10, the water outlet ends of the spray heads 11 extend into the box body 1, the water in the water tank 9 can be discharged into the water collecting cover 10 by installing the water tank 9 and opening a valve on the water tank 9, and the water in the water collecting cover 10 can be sprayed onto the heat exchange tube 2 through the spray heads 11 by installing the spray heads 11, so that the heat exchange tube 2 can be further washed.

Further, the box body 1 far away from one side of the installation box 6 is fixedly provided with the filter box 4, the filter plate 14 is detachably installed in the filter box 4, the flue gas can be filtered first by installing the filter plate 14, the dust impurity content in the flue gas entering the box body 1 can be greatly reduced, and therefore excessive impurities adhered to the heat exchange tube 2 can be avoided.

Further, a smoke inlet pipe 15 is fixedly connected to the filter box 4, and smoke can be discharged into the filter box 4 through the smoke inlet pipe 15 for filtering.

Further, the top wall of the box body 1 is fixedly connected with a smoke outlet pipe 16, and the smoke subjected to heat exchange can be discharged through the smoke outlet pipe 16.

Further, the bottom of the box body 1 is fixedly connected with a trash discharging pipe 5, and impurities in the box body 1 can be discharged through the trash discharging pipe 5 by installing the trash discharging pipe 5.

All electric parts and the adaptive power supply are connected through wires by the person skilled in the art, and a proper controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequence, and the electric connection is completed by referring to the following working principles in the working sequence among the electric parts, wherein the detailed connection means are known in the art, and the following main description of the working principles and processes is omitted.

When the utility model is used, smoke is discharged into the filter box 4 through the smoke inlet pipe 15, filtered by the filter plate 14 and enters the box body 1 for heat exchange, the smoke can be discharged through the smoke outlet pipe after the exchange is completed, when the heat exchange pipe 2 is required to be cleaned after long-time use, the valve on the water tank 9 is started, water in the water tank 9 is discharged into the water collecting cover 10 and then sprayed onto the heat exchange pipe 2 in the box body 1 through the spray head 11 to flush the heat exchange pipe 2, meanwhile, the starting motor 12 drives one belt wheel 7 to rotate, the belt 8 can be driven by the driving connection of the belt wheel 7 and the belt 8, so that a plurality of belt wheels 7 can be driven to rotate together, a plurality of scraping rods 3 can be driven to rotate together, and impurities on the outer wall of the heat exchange pipe 2 can be scraped.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The flue gas waste heat recovery device convenient to clear up is characterized by comprising a box body (1), wherein a plurality of heat exchange tubes (2) are fixedly installed in the box body (1), a plurality of scraping rods (3) are rotatably installed in the box body (1), the scraping rods (3) are contacted with the heat exchange tubes (2), a mounting box (6) is installed in the box body (1), a plurality of connecting rods are fixedly installed in the mounting box (6), a plurality of belt pulleys (7) are rotatably installed on a plurality of connecting rods in the mounting box (6), a motor (12) for driving one belt pulley (7) to rotate is fixedly installed in the mounting box (6), the centers of a plurality of belt pulleys (7) are in transmission connection with the axes of the heat exchange tubes (2) on the same horizontal line, a plurality of annular grooves (13) are formed in one side wall of the mounting box (6), and one end of each scraping rod (3) penetrates through the corresponding belt pulley (7) and is fixedly connected with the corresponding annular groove (7).

2. The flue gas waste heat recovery device convenient to clear up according to claim 1, wherein a water collecting cover (10) is fixedly installed at the top of the box body (1), a water tank (9) is fixedly installed at the top of the water collecting cover (10), a water outlet end of the water tank (9) is communicated with the water collecting cover (10), a plurality of spray heads (11) are fixedly installed on the water collecting cover (10), and a plurality of water outlet ends of the spray heads (11) extend into the box body (1).

3. The flue gas waste heat recovery device convenient to clean according to claim 1, wherein a filter box (4) is fixedly arranged on the box body (1) at a side far away from the installation box (6), and a filter plate (14) is detachably arranged in the filter box (4).

4. A flue gas waste heat recovery device convenient to clean according to claim 3, wherein the filter box (4) is fixedly connected with a flue gas inlet pipe (15).

5. The flue gas waste heat recovery device convenient to clean according to claim 1, wherein a flue gas outlet pipe (16) is fixedly connected to the top wall of the box body (1).

6. The flue gas waste heat recovery device convenient to clean according to claim 1, wherein a trash discharging pipe (5) is fixedly connected to the bottom of the box body (1).