Flue gas waste heat recovery device convenient to clean

Abstract

The utility model discloses a flue gas waste heat recovery device convenient to clean, and relates to the technical field of waste heat recovery. A plurality of heat exchange pipes are fixedly installed in the box body, a plurality of scraping rods are rotatably installed in the box body and make contact with the heat exchange pipes, an installation box is rotatably installed in the box body, and a plurality of connecting rods are fixedly installed in the installation box. A plurality of belt wheels are rotatably mounted on the multiple connecting rods located in the mounting box, a motor for driving one belt wheel to rotate is fixedly mounted in the mounting box, every two adjacent belt wheels are in transmission connection through a belt, and the circle centers of the multiple belt wheels and the axes of the multiple heat exchange pipes are located on the same horizontal line; the technical problems that after the device is used for a long time, the outer wall of a pipeline scales, so that the heat exchange efficiency is reduced, and the waste heat recovery effect is affected are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery technical field, concretely is a flue gas waste heat recovery device convenient to clean. BACKGROUND

[0002] The boiler system will produce high-temperature flue gas in the running process, if the flue gas is directly discharged into the outside, will cause resource waste. The existing waste heat recovery system usually utilizes high-temperature flue gas to heat exchange to water, thereby produces the hot water that produces ceaselessly, to realize waste heat recovery like this.

[0003] However, in actual application, because the flue gas also contains a large amount of dust impurities, long time will lead to the outside wall of pipeline scale, thereby lead to heat exchange efficiency to drop, greatly influence the effect of waste heat recovery. UTILITY MODEL CONTENTS

[0004] In view of the deficiency of prior art, the utility model provides a flue gas waste heat recovery device convenient to clean, solves the technical problem raised in the prior art above.

[0005] To realize above -mentioned purpose, the utility model is realized through following technical scheme: a flue gas waste heat recovery device convenient to clean, including the box, fixedly installed with a plurality of heat exchange pipes in the box, a plurality of scraper rods are rotatably installed in the box, a plurality of the scraper rods are in contact with a plurality of the heat exchange pipes, the installation box is installed in the box, a plurality of connecting rods are fixedly installed in the installation box, a plurality of pulleys are rotatably installed on a plurality of the connecting rods in the installation box, the motor that drives one the pulley rotation is fixedly installed in the installation box, adjacent two the pulleys are connected through belt drive, the center of a plurality of the pulleys and a plurality of the heat exchange pipe's axle are located on the same horizontal line, a plurality of annular grooves are set up on the side wall of the installation box, a plurality of the scraper rods one end penetrates the annular groove and is fixedly connected with a plurality of the pulleys.

[0006] Preferably, the water collecting cover is fixedly installed on the top of the box, the water tank is fixedly installed on the top of the water collecting cover, the water outlet end of the water tank is communicated with the water collecting cover, a plurality of spray heads are fixedly installed on the water collecting cover, and the water outlet end of the plurality of spray heads extends into the box.

[0007] Preferably, the filter box is fixedly installed on the box away from the installation box side, and the filter plate is detachably installed in the filter box.

[0008] Preferably, the filter box is fixedly connected with the flue inlet pipe.

[0009] Preferably, the flue outlet pipe is fixedly connected to the top wall of the box.

[0010] Preferably, the box is fixedly connected with the impurity discharge pipe.

[0011] Advantages

[0012] The utility model provides a flue gas waste heat recovery device convenient to clean, has the following advantages:

[0013] 1, through the installation of a plurality of heat exchange pipes can realize flue gas heat exchange, through the installation of scraper, rotates the scraper and can scrape a plurality of heat exchange pipe outer wall impurities, through the installation of installation box, in order to install the pulley and belt in installation box, through the installation of motor, starts the motor and can drive a pulley rotation, through pulley and belt transmission connection can drive belt rotation, thereby can drive a plurality of pulley rotation, thereby can drive a plurality of scraper rotation, further can scrape the heat exchange tube impurities, can effectively avoid the impurity covering pipe wall, influence heat exchange tube heat exchange effect;

[0014] 2, through the installation of water tank, opens the valve on water tank, can discharge the water in water tank to the water collecting cover, through the installation of spray head, the water in water collecting cover can be sprayed on heat exchange pipe through spray head, thereby further can flush heat exchange tube. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the front view internal structure schematic diagram of the utility model.

[0016] In the drawing: 1, box body;2, heat exchange pipe;3, scraper;4, filter box;5, impurity discharge pipe;6, installation box;7, pulley;8, belt;9, water tank;10, water collecting cover;11, spray head;12, motor;13, annular groove;14, filter plate;15, smoke inlet pipe;16, smoke outlet pipe. DETAILED DESCRIPTION

[0017] The technical scheme in the utility model embodiment will be described clearly and completely below with reference to the drawings in the utility model embodiment, wherein, the orientation of "up", "down" and other orientation terms mentioned in this article takes the orientation of the figure as the reference. Figure 1

[0018] Please refer to Figure 1 ​The utility model provides a kind of technical scheme: a flue gas waste heat recovery device convenient to clean, including box 1;Several heat exchange pipes 2 are fixedly installed in box 1, several scraper rods 3 are rotatably installed in box 1, several scraper rods 3 are contacted with several heat exchange pipes 2, installation box 6 is installed in box 1, several connecting rods are fixedly installed in installation box 6, several connecting rods in installation box 6 are rotatably installed with several pulleys 7, motor 12 for driving one pulley 7 rotation is fixedly installed in installation box 6, adjacent two pulleys 7 are connected by belt 8 transmission, the center of several pulleys 7 and the axis of several heat exchange pipes 2 are located on the same horizontal line, several annular grooves 13 are set up on the side wall of installation box 6, one end of several scraper rods 3 is fixedly connected with several pulleys 7 by penetrating annular groove 13, flue gas heat exchange can be realized by installing several heat exchange pipes 2, heat exchange pipe 2 is vertically installed in the side wall of box 1, the heat exchange pipe 2 in box 1, is connected with the vertically arranged heat exchange pipe 2, the heat exchange pipe 2 of vertically arranged is connected with inlet pipe, water can be passed into heat exchange pipe 2 by inlet pipe, one of the heat exchange pipe 2 in box 1 another end extends to the box 1 outside and is equipped with valve, to facilitate the control of the water in heat exchange pipe 2 is discharged, heat exchange pipe 2 is installed, by installing scraper rod 3, rotating scraper rod 3 can scrape off the impurities on the outer wall of several heat exchange pipes 2, installation box 6 is installed, to facilitate installation pulley 7 and belt 8 in installation box 6, motor 12 is installed, starting motor 12 can drive one pulley 7 rotation, pulley 7 and belt 8 transmission connection can drive belt 8 rotation, so as to drive several pulleys 7 rotation, so as to drive several scraper rods 3 rotation, in turn, the impurities of heat exchange pipe 2 can be scraped off, can effectively avoid the impurities covering pipe wall, influence the heat exchange effect of heat exchange pipe 2.

[0019] Further, the water collecting cover 10 is fixedly installed on the top of the box 1, the water tank 9 is fixedly installed on 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, a plurality of spray heads 11 are fixedly installed on the water collecting cover 10, the water outlet end of the plurality of spray heads 11 extends into the box 1, the water in the water tank 9 can be discharged into the water collecting cover 10 by opening the valve on the water tank 9 through the installation of the water tank 9, the water in the water collecting cover 10 can be sprayed onto the heat exchange pipe 2 through the spray heads 11, so as to further wash the heat exchange pipe 2.

[0020] Further, the filter box 4 is fixedly installed on the side of the box 1 away from the installation box 6, the filter plate 14 is detachably installed in the filter box 4, the flue gas can be filtered through the installation of the filter plate 14, which can greatly reduce the content of dust and impurities in the flue gas entering the box 1, thereby avoiding the adhesion of too much impurities on the heat exchange pipe 2.

[0021] Further, the filter box 4 is fixedly connected with the smoke inlet pipe 15, and the flue gas can be discharged into the filter box 4 through the smoke inlet pipe 15.

[0022] Further, the top wall of the box 1 is fixedly connected with a smoke outlet pipe 16, and the smoke after heat exchange can be discharged through the smoke outlet pipe 16.

[0023] Further, the bottom of the box 1 is fixedly connected with a impurity discharge pipe 5, through the installation of the impurity discharge pipe 5, the impurities in the box 1 can be discharged through the impurity discharge pipe 5.

[0024] Through the person skilled in the art, all electrical components in the case are connected with the power supply through the wire, and the appropriate controller should be selected according to the actual situation to meet the control requirement, and the specific connection and control sequence should be referred to the working principle of the following working principle, the working order of each electrical component is completed, and the detailed connection means is the public technical knowledge in the art, the working principle and process are mainly introduced below, and the electrical control is not described.

[0025] The working principle and use process of the utility model: when using, the smoke is discharged to the filter box 4 through the smoke inlet pipe 15, and after filtering through the filter plate 14, it enters the box 1 to exchange heat, and after the exchange is completed, the smoke can be discharged through the smoke exhaust pipe, when the heat exchange pipe 2 needs to be cleaned after long time use, the valve on the water tank 9 is started, the water in the water tank 9 is discharged to the water collecting cover 10 and then sprayed to the heat exchange pipe 2 in the box 1 through the nozzle 11, the heat exchange pipe 2 is washed, at the same time, the motor 12 drives a belt wheel 7 to rotate, the belt wheel 7 and the belt 8 are drivingly connected, the belt 8 can be driven, so that a plurality of belt wheels 7 can be driven to rotate, and a plurality of scraper rods 3 can be driven to rotate, the impurities on the outer wall of the heat exchange pipe 2 can be scraped off.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A flue gas waste heat recovery device that is easy to clean, characterized in that: The invention comprises a box body (1); a plurality of heat exchange tubes (2) are fixedly installed in the box body (1); a plurality of scraper rods (3) are rotatably installed in the box body (1); the plurality of scraper rods (3) are in contact with the plurality of 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 pulleys (7) are rotatably installed on the plurality of connecting rods located in the mounting box (6); a motor (12) for driving one of the pulleys (7) to rotate is fixedly installed in the mounting box (6); two adjacent pulleys (7) are connected by a belt (8); the centers of the plurality of pulleys (7) and the axis centers of the plurality of heat exchange tubes (2) are located on the same horizontal line; a plurality of annular grooves (13) are provided on one side wall of the mounting box (6); one end of the plurality of scraper rods (3) passes through the annular groove (13) and is fixedly connected to the plurality of pulleys (7).

2. The easy-to-clean flue gas waste heat recovery device according to claim 1, characterized in that: A water collecting cover (10) is fixedly mounted on the top of the box body (1), a water tank (9) is fixedly mounted on the top of the water collecting cover (10), a water outlet end of the water tank (9) is connected to the water collecting cover (10), a plurality of nozzles (11) are fixedly mounted on the water collecting cover (10), and the water outlet ends of the plurality of nozzles (11) extend into the box body (1).

3. The easy-to-clean flue gas waste heat recovery device according to claim 1, characterized in that: A filter box (4) is fixedly mounted on the box body (1) at a side away from the installation box (6), and a filter plate (14) is detachably mounted in the filter box (4).

4. The easy-to-clean flue gas waste heat recovery device according to claim 3, characterized in that: A smoke inlet pipe (15) is fixedly connected to the filter box (4).

5. The flue gas waste heat recovery device that is easy to clean according to claim 1, characterized in that: A smoke outlet pipe (16) is fixedly connected to the top wall of the box body (1).

6. The easy-to-clean flue gas waste heat recovery device according to claim 1, characterized in that: The bottom of the box body (1) is fixedly connected with a waste discharge pipe (5).

Images