CN214891110U

CN214891110U - Flue gas waste heat recycling device

Info

Publication number: CN214891110U
Application number: CN202120179734.6U
Authority: CN
Inventors: 周大伟
Original assignee: Henan Yida Heat Exchanger Equipment Co ltd
Current assignee: Henan Yida Heat Exchanger Equipment Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-26
Anticipated expiration: 2031-01-22

Abstract

The utility model belongs to the technical field of waste heat recovery, specifically disclose a flue gas waste heat recovery recycles device, including water tank, boiler chimney, feed pump, diaphragm pump, protective cover, cleaning brush, resilience subassembly and traction motor, boiler chimney top one side articulates there is the protective cover, and the inboard of protective cover is seted up flutedly, and the rotation of groove notch department is provided with cleaning brush, and the lateral wall of cleaning brush is seted up the ring channel, and the contact surface of recess inner wall and cleaning brush is fixed with the slider, and slider and ring channel slip joint; a cleaning motor is fixed at the bottom of the inner side of the groove, an output shaft is fixed at the output end of the cleaning motor, and the output shaft is fixedly connected with the cleaning brush; the outer side wall of the boiler chimney is fixed with a supporting plate, a vertical plate is fixed on the supporting plate, an installation frame is fixed on the vertical plate, a contraction wheel is rotatably arranged in the installation frame through a rotating shaft, a steel rope is wound on the contraction wheel, and the steel rope is fixedly connected with the top of the protective cover.

Description

Flue gas waste heat recycling device

Technical Field

The utility model relates to a flue gas waste heat recovery recycles device belongs to waste heat recovery technical field.

Background

The coal-fired boiler refers to coal which is burnt by fuel, the heat of the coal is converted to generate steam or become hot water, but not all the heat is converted effectively, and a part of the heat is consumed without work, so that the efficiency problem exists, and the efficiency of the general large boiler is higher and is between 60 and 80 percent. Especially, the partial heat brought away by the waste heat of the boiler flue gas can not be recycled.

In the prior art (patent number: 201920335523. X), a water tank, a water feeding pump, a diaphragm pump, a water conveying pipe, a water return pipe and a coiled pipe are arranged, and the coiled pipe is arranged in a boiler chimney, so that water in the water tank absorbs waste heat of flue gas through the coiled pipe to achieve a waste heat recovery function.

The technical patent has the following defects: (1) the top of the chimney is an open-air whole, the coiled pipe is arranged in the chimney without a protective structure, and when the boiler chimney is not used, the coiled pipe is easy to damage due to striking of an external object; (2) because the coiled pipe is in contact with the flue gas for a long time, coal ash is easily accumulated on the outer side wall of the coiled pipe, and the coal ash can reduce the heat exchange efficiency between the coiled pipe and the flue gas.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flue gas waste heat recovery recycles device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a flue gas waste heat recycling device comprises a water tank, a boiler chimney, a water feeding pump, a diaphragm pump, a protective cover, a cleaning brush, a resilience assembly and a traction motor, wherein the protective cover is hinged to one side of the top end of the boiler chimney, a groove is formed in the inner side of the protective cover, the cleaning brush is rotatably arranged at the groove opening, a ring groove is formed in the side wall of the cleaning brush, a sliding block is fixed on the contact surface of the inner wall of the groove and the cleaning brush, and the sliding block is in sliding clamping connection with the ring groove; a cleaning motor is fixed at the bottom of the inner side of the groove, an output shaft is fixed at the output end of the cleaning motor, and the output shaft is fixedly connected with the cleaning brush; the outer side wall of the boiler chimney is fixed with a supporting plate, a vertical plate is fixed on the supporting plate, an installation frame is fixed on the vertical plate, a contraction wheel is rotatably arranged in the installation frame through a rotating shaft, a steel rope is wound on the contraction wheel, and the steel rope is fixedly connected with the top of the protective cover.

Preferably, a traction motor is installed on the outer side wall of the installation frame, and the output end of the traction motor is connected with the rotating shaft.

Preferably, a U-shaped connecting piece is fixed on one side wall of the protective cover, and sliding grooves are formed in two side walls of the U-shaped connecting piece.

Preferably, the below that lies in "U" type connecting piece in the backup pad is fixed with the subassembly that kick-backs, and the subassembly that kick-backs includes telescopic shaft sleeve, connecting axle and spring, the one end of connecting axle is extended "U" shape connecting piece inboard and this end both sides are fixed with the sliding shaft, and the roll draw-in groove has been seted up to the terminal surface of sliding shaft, is provided with the ball in the roll draw-in groove, ball and spout slip joint.

Preferably, the other end of the connecting shaft is inserted into the telescopic shaft sleeve and is connected with the bottom of the inner side of the telescopic shaft sleeve through a spring.

Preferably, the water tank is connected with the water feeding pump through a water outlet pipe; the water tank and the boiler chimney are connected into a loop through a water conveying pipe and a water return pipe, and the water conveying pipe is connected with a diaphragm pump.

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

1. the utility model relates to a flue gas waste heat recovery recycles device, through being provided with protective cover, traction motor, shrink wheel, steel cable and resilience subassembly, switching that can the automatic control protective cover is convenient for when boiler chimney does not use, plays the guard action to its inside coiled pipe, avoids external object to fall into the damage coiled pipe in the boiler chimney.

2. The utility model discloses be provided with clearance motor and clearance brush, the clearance motor can drive the clearance brush and rotate, realizes the deashing effect to the coiled pipe, avoids coal ash to influence the heat exchange efficiency between flue gas and the coiled pipe.

Drawings

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

figure 2 is a schematic view of the connection structure of the rebound assembly and the U-shaped connecting piece.

In the figure: 1. a water tank; 2. a boiler chimney; 3. a feed pump; 4. a diaphragm pump; 5. a protective cover; 501. a groove; 6. cleaning a brush; 7. a rebound assembly; 701. a telescopic shaft sleeve; 702. a connecting shaft; 703. a spring; 8. a traction motor; 9. cleaning the motor; 10. a support plate; 11. a vertical plate; 12. installing a frame; 13. a shrink wheel; 14. a steel cord; 15. a U-shaped connecting piece; 1501. a chute; 16. a sliding shaft.

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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a flue gas waste heat recycling device comprises a water tank 1, a boiler chimney 2, a water feeding pump 3, a diaphragm pump 4, a protective cover 5, a cleaning brush 6, a rebound component 7 and a traction motor 8, wherein one side of the top end of the boiler chimney 2 is hinged with the protective cover 5, a groove 501 is formed in the inner side of the protective cover 5, the cleaning brush 6 is rotatably arranged at the notch of the groove 501, an annular groove is formed in the side wall of the cleaning brush 6, a sliding block is fixed on the contact surface of the inner wall of the groove 501 and the cleaning brush 6, and the sliding block is in sliding clamping connection with the annular groove; a cleaning motor 9 is fixed at the bottom of the inner side of the groove 501, an output shaft is fixed at the output end of the cleaning motor 9, and the output shaft is fixedly connected with the cleaning brush 6; the outer side wall of the boiler chimney 2 is fixed with a supporting plate 10, a vertical plate 11 is fixed on the supporting plate 10, an installation frame 12 is fixed on the vertical plate 11, a contraction wheel 13 is rotatably arranged in the installation frame 12 through a rotating shaft, a steel rope 14 is wound on the contraction wheel 13, and the steel rope 14 is fixedly connected with the top of the protective cover 5.

Furthermore, a traction motor 8 is installed on the outer side wall of the installation frame 12, and the output end of the traction motor 8 is connected with the rotating shaft.

The traction motor may provide power for opening of the protective cover.

Furthermore, a U-shaped connecting member 15 is fixed to one side wall of the protecting cover 5, and sliding grooves 1501 are formed in two side walls of the U-shaped connecting member 15.

The U-shaped connecting piece can realize the connecting function between the protective cover and the rebounding mechanism.

Furthermore, the supporting plate 10 is fixed with the rebound assembly 7 below the U-shaped connecting piece 15, the rebound assembly 7 comprises a telescopic shaft sleeve 701, a connecting shaft 702 and a spring 703, one end of the connecting shaft 702 extends to the inner side of the U-shaped connecting piece 15, sliding shafts 17 are fixed on two sides of the end of the U-shaped connecting piece, a rolling clamping groove is formed in the end face of each sliding shaft 17, balls are arranged in the rolling clamping groove, and the balls are in sliding clamping connection with the sliding grooves 1501.

The rebound component 7 can help the protective cover 5 to reset, namely the protective cover 5 is covered with the boiler chimney 2; the ball slides with spout 1501 and blocks, makes things convenient for "U" type connecting piece 15 to realize the rotation function.

Further, the other end of the connecting shaft 702 is inserted into the telescopic shaft sleeve 701 and is connected with the bottom of the inner side of the telescopic shaft sleeve 701 through a spring 703.

Further, the water tank 1 is connected with the water feeding pump 3 through a water outlet pipe; the water tank 1 and the boiler chimney 2 are connected into a loop through a water delivery pipe and a water return pipe, and the water delivery pipe is connected with a diaphragm pump 4.

The internal structure and the working principle of the boiler chimney and the internal structure and the working principle of the water tank are disclosed in Chinese patent (patent number: 201920335523. X).

The working principle is as follows: the utility model relates to a flue gas waste heat recovery recycles device, during the use, when needs carry out the deashing to the coiled pipe in the boiler chimney 2, can start traction motor 8, make traction motor 8 drive shrink wheel 13 anticlockwise rotation, shrink wheel 13 relaxs steel cable 14 this moment, under the effect of spring 703, make connecting axle 702 jack-up "U" type connecting piece 15 upwards, and then make protective cover 5 rotate, until protective cover 5 is closed, after protective cover 5 is closed, the brush hair on the cleaning brush 6 can contact the coiled pipe, then start cleaning motor 9, cleaning motor 9 drives cleaning brush 6 and rotates, make cleaning brush 6 can realize the deashing function to the coiled pipe, avoid coal ash to pile up the heat exchange efficiency between the surface influence flue gas of coiled pipe and coiled pipe.

When boiler chimney 2 does not use, can keep protective cover 5 for closed state, protective cover 5 can protect boiler chimney 2 is inside, can not use when boiler chimney 2, plays the guard action to the inside coiled pipe of boiler chimney 2, avoids external object to fall into and damages the coiled pipe in boiler chimney 2.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

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 recycles device which characterized in that: the cleaning device comprises a water tank (1), a boiler chimney (2), a water feeding pump (3), a diaphragm pump (4), a protective cover (5), a cleaning brush (6), a resilience component (7) and a traction motor (8), wherein the protective cover (5) is hinged to one side of the top end of the boiler chimney (2), a groove (501) is formed in the inner side of the protective cover (5), the cleaning brush (6) is rotatably arranged at the notch of the groove (501), an annular groove is formed in the side wall of the cleaning brush (6), a sliding block is fixed on the contact surface between the inner wall of the groove (501) and the cleaning brush (6), and the sliding block is in sliding clamping connection with the annular groove; a cleaning motor (9) is fixed at the bottom of the inner side of the groove (501), an output shaft is fixed at the output end of the cleaning motor (9), and the output shaft is fixedly connected with the cleaning brush (6); the outer side wall of the boiler chimney (2) is fixed with a supporting plate (10), a vertical plate (11) is fixed on the supporting plate (10), a mounting frame (12) is fixed on the vertical plate (11), a contraction wheel (13) is rotatably arranged in the mounting frame (12) through a rotating shaft, a steel rope (14) is wound on the contraction wheel (13), and the steel rope (14) is fixedly connected with the top of a protective cover (5).

2. The flue gas waste heat recycling device according to claim 1, characterized in that: traction motor (8) are installed to installing frame (12) lateral wall, and the output and the pivot of traction motor (8) are connected.

3. The flue gas waste heat recycling device according to claim 1, characterized in that: a U-shaped connecting piece (15) is fixed on one side wall of the protective cover (5), and sliding grooves (1501) are formed in two side walls of the U-shaped connecting piece (15).

4. The flue gas waste heat recycling device according to claim 1, characterized in that: the utility model discloses a spring-back type connecting piece, including backup pad (10) and connecting axle (702), the below that lies in "U" type connecting piece (15) on backup pad (10) is fixed with resilience subassembly (7), and resilience subassembly (7) are including flexible axle sleeve (701), connecting axle (702) and spring (703), the one end of connecting axle (702) is extended "U" type connecting piece (15) inboard and this end both sides are fixed with sliding shaft (17), and the roll draw-in groove has been seted up to the terminal surface of sliding shaft (17), is provided with the ball in the roll draw-in groove, ball and spout (1501) slip joint.

5. The flue gas waste heat recycling device according to claim 4, characterized in that: the other end of the connecting shaft (702) is inserted in the telescopic shaft sleeve (701) and is connected with the bottom of the inner side of the telescopic shaft sleeve (701) through a spring (703).

6. The flue gas waste heat recycling device according to claim 1, characterized in that: the water tank (1) is connected with the water feeding pump (3) through a water outlet pipe; the water tank (1) and the boiler chimney (2) are connected into a loop through a water delivery pipe and a water return pipe, and the water delivery pipe is connected with a diaphragm pump (4).