Flue gas waste heat recovery device of waste heat boiler

Abstract

The utility model discloses a waste heat boiler flue gas waste heat recovery device which comprises a shell, the back face of the shell is fixedly connected with a motor, the output end of the motor is fixedly connected with a lead screw, the surface of the lead screw is in threaded connection with an adjusting rod, and the two sides of the front face of the adjusting rod are fixedly connected with vertical rods. One side of the vertical rod is fixedly connected with a heat exchange pipe, the surface of the heat exchange pipe is in contact with a brush rod, one side of the brush rod is fixedly connected with a connecting seat, one side of the connecting seat is movably connected with a movable rod, and one side of the movable rod is movably connected with a fixed seat. Filtered flue gas is discharged into the inner cavity of the heat exchange pipe through the first corrugated pipe and exchanges heat with water in the inner cavity of the shell, the motor drives the lead screw to rotate, the lead screw drives the adjusting rod to move, the adjusting rod drives the vertical rod to move, and the vertical rod drives the heat exchange pipe to move, so that the heat exchange pipe is in contact with water at different positions conveniently, and the heat exchange efficiency is improved. And the waste heat recovery work is prevented from being influenced by over-high local water temperature.

Description

TECHNICAL FIELD

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

[0002] The boiler is a kind of energy conversion equipment, the energy input to the boiler has chemical energy in fuel, electric energy, the boiler exports steam with certain heat energy, high-temperature water or organic heat carrier, the original meaning of pot refers to the water container heated on fire, furnace refers to the place of burning fuel, boiler includes pot and furnace two parts.

[0003] High-temperature flue gas is generated during the working process of the boiler, and the high-temperature flue gas is directly discharged at present, so that the high temperature in the flue gas cannot be recycled and utilized, thereby causing waste of resources and failing to meet the use requirement, therefore, the waste heat boiler flue gas waste heat recovery device is provided. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a waste heat boiler flue gas waste heat recovery device, which has the advantages of waste heat recovery, solves the problem that the high-temperature flue gas is directly discharged at present, so that the high temperature in the flue gas cannot be recycled and utilized, thereby causing waste of resources and failing to meet the use requirement.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a waste heat boiler flue gas waste heat recovery device, including the shell, the back of shell is fixedly connected with motor, the output of motor is fixedly connected with screw rod, the surface of screw rod is connected with adjusting lever, the both sides of adjusting lever's front are fixedly connected with vertical rod, the side of vertical rod is fixedly connected with heat exchange pipe, the surface of heat exchange pipe is contacted with brush rod, the side of brush rod is fixedly connected with connecting seat, the side of connecting seat is movably connected with movable rod, the side of movable rod is movably connected with fixed seat, the side of fixed seat is fixedly connected with shell.

[0006] Preferably, the left side of the shell is fixedly connected with the box, the left side of the box is communicated with the fan, the left side of the fan is communicated with the gas suction pipe, the inner cavity of the shell is fixedly connected with the activated carbon filter screen and the HEPA filter screen from left to right, and the side of the gas suction pipe is communicated with the gas outlet of the boiler through the air guide pipe.

[0007] Preferably, the side of the box is communicated with the first bellows, and the side of the first bellows is communicated with the heat exchange pipe.

[0008] Preferably, the side of the heat exchange pipe is communicated with the second bellows, the left side of the second bellows is fixedly connected with the shell, and the top of the left side of the shell is provided with a through hole.

[0009] Preferably, the left side of the adjusting rod inner cavity is slidably connected with a sliding rod, and the rear side of the sliding rod is fixedly connected with the shell.

[0010] Preferably, the top of the shell is communicated with a water injection pipe, and the front of the box body is movably connected with a sealing door.

[0011] Preferably, the right side of the front bottom of the shell is communicated with a drain pipe, and the side of the drain pipe is movably connected with a control valve.

[0012] Compared with the prior art, the waste heat boiler flue gas waste heat recovery device has the following beneficial effects:

[0013] The utility model discloses a fan is started, through the air extraction pipe and enter the flue gas, then through active carbon filter screen and HEPA filter screen are in proper order to the flue gas filtration, through the first bellows and filter the flue gas and arrange to the heat exchange pipe inner chamber, with the water in the shell inner chamber carries out the heat exchange work, starts the motor simultaneously, through the motor drive screw rod rotation, and the screw rod drives the adjusting rod to remove, and the adjusting rod drives the vertical rod to remove, and the vertical rod drives the heat exchange pipe to remove, thereby convenient heat exchange pipe and the water contact of different positions, avoid local water temperature to be too high and influence the waste heat recovery work, and the heat exchange pipe still will drive the brush rod to move forward and backward, through the cooperation of connecting seat, movable rod and fixed seat, make the brush rod still will carry out the left and right movement while moving forward and backward, thereby brush the surface of heat exchange pipe, avoid the scale of the surface of heat exchange pipe and influence the heat exchange work. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model;

[0015] Figure 2 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 3 It is the partial sectional view structure schematic diagram under the first visual angle state of the utility model;

[0017] Figure 4 It is the partial sectional view structure schematic diagram under the second visual angle state of the utility model;

[0018] Figure 5 It is the box body sectional view structure schematic diagram of the utility model.

[0019] In the drawing: 1, shell;2, motor;3, screw rod;4, adjusting rod;5, sliding rod;6, vertical rod;7, heat exchange pipe;8, brush rod;9, connecting seat;10, movable rod;11, fixed seat;12, box body;13, fan;14, air extraction pipe;15, active carbon filter screen;16, HEPA filter screen;17, first bellows;18, second bellows;19, through -hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] Secondly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not refer to the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments. Embodiment one:

[0022] Please refer to Figure 2 , Figure 3 and Figure 4 , the present application provides a waste heat boiler flue gas waste heat recovery device, including the shell 1, the back of the shell 1 is fixedly connected with motor 2, the output end of motor 2 is fixedly connected with lead screw 3, the surface of lead screw 3 is threadedly connected with adjusting rod 4, the front of adjusting rod 4 is fixedly connected with vertical rod 6 on both sides, one side of vertical rod 6 is fixedly connected with heat exchange pipe 7, the surface of heat exchange pipe 7 is contacted with brush rod 8, one side of brush rod 8 is fixedly connected with connecting seat 9, one side of connecting seat 9 is movably connected with movable rod 10, one side of movable rod 10 is movably connected with fixed seat 11, one side of fixed seat 11 is fixedly connected with shell 1, one side of heat exchange pipe 7 is communicated with second bellows 18, the left side of second bellows 18 is fixedly connected with shell 1, the top of the left side of shell 1 is provided with through hole 19, the left side of the inner cavity of adjusting rod 4 is slidably connected with slide rod 5, the rear side of slide rod 5 is fixedly connected with shell 1, the right side of the front bottom of shell 1 is communicated with drain pipe, and one side of the drain pipe is movably connected with control valve.

[0023] The specific effect of the technical scheme is: the filtered flue gas is discharged into the inner cavity of the heat exchange pipe 7 through the first bellows 17, and the water in the inner cavity of the shell 1 is heated at the same time. Meanwhile, the motor 2 is started, the lead screw 3 is driven to rotate by the motor 2, the adjusting rod 4 is driven to move by the lead screw 3, the vertical rod 6 is driven to move by the adjusting rod 4, and the heat exchange pipe 7 is driven to move by the vertical rod 6. Thus, the heat exchange pipe 7 is conveniently contacted with water at different positions, avoiding that the local water temperature is too high to affect the waste heat recovery work. The heat exchange pipe 7 also drives the brush rod 8 to move back and forth. Through the cooperation of the connecting seat 9, the movable rod 10 and the fixed seat 11, the brush rod 8 also moves left and right while moving back and forth, so as to brush the surface of the heat exchange pipe 7, avoiding that the scale on the surface of the heat exchange pipe 7 affects the heat exchange work. Embodiment two:

[0024] Based on Embodiment 1, this utility model is as follows: Figure 1 , Figure 2 and Figure 5 As shown, a housing 12 is fixedly connected to the left side of the housing 1, a fan 13 is connected to the left side of the housing 12, and an exhaust pipe 14 is connected to the left side of the fan 13. An activated carbon filter 15 and a HEPA filter 16 are fixedly connected to the inner cavity of the housing 1 from left to right. One side of the exhaust pipe 14 is connected to the gas outlet of the boiler through a gas guide pipe. One side of the housing 12 is connected to a first corrugated pipe 17, and one side of the first corrugated pipe 17 is connected to a heat exchange pipe 7. A water injection pipe is connected to the top of the housing 1, and a sealing door is movably connected to the front of the housing 12.

[0025] The specific function of this technical solution is to start the fan 13, draw the flue gas in through the exhaust pipe 14, and then filter the flue gas through the activated carbon filter 15 and the HEPA filter 16 in sequence.

[0026] Working principle: When the fan 13 is started, the flue gas is drawn in through the exhaust pipe 14, and then filtered through the activated carbon filter 15 and the HEPA filter 16 in sequence. The filtered flue gas is discharged into the inner cavity of the heat exchange tube 7 through the first corrugated pipe 17 to exchange heat with the water in the inner cavity of the shell 1. At the same time, the motor 2 is started, which drives the lead screw 3 to rotate. The lead screw 3 drives the adjusting rod 4 to move, the adjusting rod 4 drives the vertical rod 6 to move, and the vertical rod 6 drives the heat exchange tube 7 to move. This facilitates the contact between the heat exchange tube 7 and the water at different positions, avoiding excessively high local water temperature that may affect the waste heat recovery. The heat exchange tube 7 also drives the brush rod 8 to move back and forth. Through the cooperation of the connecting seat 9, the movable rod 10 and the fixed seat 11, the brush rod 8 can move back and forth and also move left and right, thereby brushing the surface of the heat exchange tube 7 and preventing scale from forming on the surface of the heat exchange tube 7, which may affect the heat exchange.

[0027] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review the present disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the present application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating

[0028] Also, to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (i.e., those related to the

[0029] Finally, it should be noted that the above-mentioned embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the protection scope of the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A waste heat recovery device for flue gas from a waste heat boiler, comprising a shell (1), characterized in that: A motor (2) is fixedly connected to the back of the housing (1). A lead screw (3) is fixedly connected to the output end of the motor (2). An adjusting rod (4) is threaded onto the surface of the lead screw (3). Vertical rods (6) are fixedly connected to both sides of the front of the adjusting rod (4). A heat exchange tube (7) is fixedly connected to one side of the vertical rod (6). A brush rod (8) is in contact with the surface of the heat exchange tube (7). A connecting seat (9) is fixedly connected to one side of the brush rod (8). A movable rod (10) is movably connected to one side of the connecting seat (9). A fixed seat (11) is movably connected to one side of the movable rod (10). One side of the fixed seat (11) is fixedly connected to the housing (1).

2. The waste heat recovery device for waste heat boiler flue gas according to claim 1, characterized in that: A box (12) is fixedly connected to the left side of the housing (1), a fan (13) is connected to the left side of the box (12), and an exhaust pipe (14) is connected to the left side of the fan (13). An activated carbon filter (15) and a HEPA filter (16) are fixedly connected to the inner cavity of the housing (1) from left to right. One side of the exhaust pipe (14) is connected to the gas outlet of the boiler through a gas guide pipe.

3. The waste heat recovery device for waste heat boiler flue gas according to claim 2, characterized in that: One side of the housing (12) is connected to a first corrugated pipe (17), and one side of the first corrugated pipe (17) is connected to a heat exchange pipe (7).

4. The waste heat recovery device for waste heat boiler flue gas according to claim 1, characterized in that: The heat exchange tube (7) is connected to a second corrugated tube (18) on one side. The left side of the second corrugated tube (18) is fixedly connected to the shell (1). A through hole (19) is provided on the top of the left side of the shell (1).

5. The waste heat recovery device for waste heat boiler flue gas according to claim 1, characterized in that: A slide rod (5) is slidably connected to the left side of the inner cavity of the adjusting rod (4), and the rear side of the slide rod (5) is fixedly connected to the housing (1).

6. The waste heat recovery device for waste heat boiler flue gas according to claim 2, characterized in that: The top of the housing (1) is connected to a water injection pipe, and the front of the box (12) is movably connected to a sealing door.

7. The waste heat recovery device for waste heat boiler flue gas according to claim 1, characterized in that: A drain pipe is connected to the right side of the bottom front of the housing (1), and a control valve is movably connected to one side of the drain pipe.

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