High-efficiency boiler waste heat recoverer

Abstract

The utility model discloses a high-efficiency boiler waste heat recoverer which comprises a heat exchange tank, a flow dividing tank is fixedly arranged at the bottom of the inner side of the heat exchange tank, a plurality of heat exchange branch pipes are fixedly communicated with the top end of the flow dividing tank, flow collecting pipes are fixedly communicated with the tops among the heat exchange branch pipes, and a fixing seat is fixedly arranged on one side of the bottom end of the heat exchange tank. According to the high-efficiency boiler waste heat recoverer, boiler tail gas is guided into the heat exchange tank through the gas guide pipe, meanwhile, cold water is guided into the flow dividing tank through the water inlet pipe, the cold water is divided into the heat exchange branch pipes, the cold water injected from the bottom is increased through waste heat recovery, and hot water is squeezed out from the top; the temperature of hot water is increased to be close to the temperature of boiled water, then water consumed by boiler steam is supplemented, the temperature of supplemented water of the steam generator is not reduced, and the powerful stable gas production effect is achieved under continuous impact of high-temperature flames of a hearth.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler waste heat recovery technical field, concretely is a kind of high-efficiency boiler waste heat recovery device. BACKGROUND

[0002] Boiler is a kind of energy conversion equipment, the energy input to boiler has chemical energy in fuel, electric energy, boiler exports have certain heat steam, high-temperature water or organic heat carrier, but the boiler tail gas is directly discharged when the boiler of prior art is used, it is inconvenient to carry out waste heat recovery treatment to boiler tail gas, lead to heat loss, cause resource waste.

[0003] To solve the above problems, a kind of high-efficiency boiler waste heat recovery device is provided. UTILITY MODEL CONTENTS

[0004] The utility model is to provide a kind of high-efficiency boiler waste heat recovery device to solve the problems presented in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-efficiency boiler waste heat recovery device, including heat exchange jar, the bottom of the inner side of the heat exchange jar is fixedly arranged with shunt jar, the top of the shunt jar is fixedly connected with several heat exchange branch pipes, the top of several heat exchange branch pipes is fixedly connected with header pipe, the side of the bottom of the heat exchange jar is fixedly arranged with fixed seat, the top of the inner side of the fixed seat is fixedly installed with motor, the output of the motor extends to the inside of heat exchange jar and is fixedly connected with screw rod, the surface of the screw rod is screw set with sleeve, the side of the sleeve is fixedly arranged with mounting seat, the surface of the mounting seat is fixedly arranged with several cleaning parts, several cleaning parts are respectively sleeved on the surface of several heat exchange branch pipes, the top of the side of the heat exchange jar is fixedly connected with inlet pipe, the end away from the heat exchange jar of the inlet pipe is screw set with sealing cover, the middle of the sealing cover is fixedly connected with air guide pipe.

[0006] Boiler tail gas is guided into heat exchange jar through air guide pipe, cold water is guided into shunt jar through water inlet pipe, and cold water is shunted to several heat exchange branch pipes, and hot water is extruded from the bottom by the increase of cold water injection through waste heat recovery, the temperature of hot water is increased to the temperature close to boiling water, and then the water consumed by boiler steam is replenished, so that the steam generator is not cooled by water replenishment, and the stable gas production effect is achieved under the continuous impact of high-temperature flame in furnace chamber, the sleeve is moved up and down by the rotation of screw rod driven by motor, so as to drive the mounting seat to move up and down, and then drive several cleaning parts to move up and down, so as to facilitate the cleaning of the surface of several heat exchange branch pipes, avoid the surface of heat exchange branch pipe from being attached dust or foreign matter, and then affect heat exchange efficiency.

[0007] Preferably, one end of the inside of the air inlet pipe is provided with a chute, the inside of the chute is slidably provided with a filter screen, the inside of the sealing cover is fixedly provided with two supporting rods, and the two supporting rods are correspondingly arranged with the filter screen.

[0008] Preferably, the inside of the air inlet pipe is provided with a chute, the inside of the chute is slidably provided with a filter screen, the inside of the sealing cover is fixedly provided with two supporting rods, and the two supporting rods are correspondingly arranged with the filter screen.

[0009] Preferably, the bottom of the side, away from the air inlet pipe, of the heat exchange tank is provided with a fixedly communicated air outlet pipe, and the tail gas after heat exchange is discharged through the air outlet pipe.

[0010] Preferably, the middle of the bottom of the heat exchange tank is fixedly communicated with a water inlet pipe, the top end of the water inlet pipe extends to the inside of the heat exchange tank and is communicated with the shunt tank, and cold water is introduced into the shunt tank through the water inlet pipe.

[0011] Preferably, the top end of the heat exchange tank is provided with a top cover, the middle of the top cover is fixedly communicated with a water outlet pipe, the water outlet pipe is communicated with the collecting pipe, and the water after heat exchange is discharged through the water outlet pipe.

[0012] Preferably, the connection between the heat exchange tank and the top cover is fixedly provided with a first connecting ring, the connection between the top cover and the heat exchange tank is fixedly provided with a second connecting ring, and a plurality of fixing bolts are threadedly arranged between the first connecting ring and the second connecting ring, so as to fixedly connect the first connecting ring and the second connecting ring through the cooperation of the plurality of fixing bolts, and then fix the top cover on the heat exchange tank.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The boiler tail gas is introduced into the heat exchange tank through the air guide pipe, cold water is introduced into the shunt tank through the water inlet pipe, and the cold water is shunted into a plurality of heat exchange branch pipes, so that the cold water and the boiler tail gas in the heat exchange branch pipes are subjected to heat exchange treatment, thereby realizing waste heat recovery of the boiler tail gas, heating the cold water, using the heated water to supplement the consumed water of the steam generator, and realizing stable gas production under the impact of high-temperature flame in the hearth without temperature drop of the steam generator. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model.

[0016] Figure 2 It is a front sectional view of the utility model;

[0017] Figure 3 It is the enlarged view of local A of the utility model;

[0018] Figure 4 It is the enlarged view of local B of the utility model.

[0019] In the drawing: 1, heat exchange tank;2, shunt tank;3, heat exchange branch pipe;4, collecting pipe;5, top cover;6, water outlet pipe;7, water inlet pipe;8, guide rod;9, guide seat;10, air outlet pipe;11, fixed seat;12, motor;13, air inlet pipe;14, gas guide pipe;15, screw;16, sleeve;17, mounting seat;18, cleaning piece;19, sealing cover;20, support rod;21, sliding slot;22, filter screen;23, first connecting ring;24, second connecting ring;25, fixed bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1-4The utility model provides a kind of high-efficiency boiler waste heat recovery, including heat exchange tank 1, the bottom of the inboard of heat exchange tank 1 is fixedly provided with shunt tank 2, the top of shunt tank 2 is fixedly communicated with several heat exchange branch pipes 3, the top between several heat exchange branch pipes 3 is fixedly communicated with header pipe 4, the side of heat exchange tank 1 bottom end is fixedly provided with fixed seat 11, the top of inboard of fixed seat 11 is fixedly installed with motor 12, the output of motor 12 extends to the inside fixed connection of heat exchange tank 1 with lead screw 15, the surface of lead screw 15 is provided with sleeve 16, the side of sleeve 16 is fixedly provided with mounting seat 17, the surface of mounting seat 17 is fixedly provided with several cleaning parts 18, several cleaning parts 18 are respectively sleeved on the surface of several heat exchange branch pipes 3, the top of the side of heat exchange tank 1 is fixedly communicated with air inlet pipe 13, the end of air inlet pipe 13 away from heat exchange tank 1 is provided with sealing cover 19 with thread, the middle of sealing cover 19 is fixedly communicated with gas guide pipe 14, boiler tail gas is guided into heat exchange tank 1 by gas guide pipe 14, cold water is guided into shunt tank 2 by water inlet pipe 7 simultaneously, and cold water is shunted to several heat exchange branch pipes 3, and hot water is extruded by the increase of cold water from bottom by waste heat recovery, the temperature of hot water is increased to the temperature close to boiling water, and then the water of boiler steam consumption is replenished, so that steam generator is not cooled down by replenishment, under the continuous impact of high-temperature flame in hearth, the effect of strong and stable gas production is achieved, lead screw 15 is driven to rotate by motor 12, then sleeve 16 moves up and down, so as to drive mounting seat 17 to move up and down, then several cleaning parts 18 move up and down, so as to facilitate the surface of several heat exchange branch pipes 3 to be cleaned, and the surface of heat exchange branch pipe 3 is prevented from being attached dust or foreign matter, so as to avoid affecting heat exchange efficiency.

[0022] The end of inboard of air inlet pipe 13 is provided with chute 21, filter screen 22 is slidably arranged in the inside of chute 21, two supporting rods 20 are fixedly arranged on the inboard of sealing cover 19, two supporting rods 20 are correspondingly arranged with filter screen 22, guiding rod 8 is fixedly arranged on the side of the bottom of the inner wall of heat exchange tank 1, guiding seat 9 is slidably arranged on the surface of guiding rod 8, guiding seat 9 is fixedly connected with mounting seat 17, the bottom of the side of heat exchange tank 1 away from air inlet pipe 13 is provided with fixedly communicated gas outlet pipe 10;

[0023] When using, the setting of filter screen 22 facilitates the filtration treatment of boiler tail gas, the cooperation of guiding rod 8 and guiding seat 9 facilitates the stable up-and-down movement of mounting seat 17, and the tail gas after heat exchange is discharged through gas outlet pipe 10;

[0024] The middle part of the bottom end of the heat exchange tank 1 is fixedly communicated with a water inlet pipe 7, the top end of the water inlet pipe 7 extends to the inside of the heat exchange tank 1 and is communicated with the shunt tank 2, the top end of the heat exchange tank 1 is provided with a top cover 5, the middle part of the top cover 5 is fixedly communicated with a water outlet pipe 6, the water outlet pipe 6 is communicated with the collecting pipe 4, the connecting part of the heat exchange tank 1 and the top cover 5 is fixedly provided with a first connecting ring 23, the connecting part of the top cover 5 and the heat exchange tank 1 is fixedly provided with a second connecting ring 24, a plurality of fixing bolts 25 are threadedly arranged between the first connecting ring 23 and the second connecting ring 24;

[0025] In use, cold water is introduced into the shunt tank 2 through the water inlet pipe 7, and the water after heat exchange is led out through the water outlet pipe 6, and the first connecting ring 23 and the second connecting ring 24 are fixedly connected through the cooperation of the plurality of fixing bolts 25, so that the top cover 5 is fixed on the heat exchange tank 1.

[0026] In use, the boiler tail gas is introduced into the heat exchange tank 1 through the gas guide pipe 14, and at the same time, cold water is introduced into the shunt tank 2 through the water inlet pipe 7, and the cold water is shunted to the plurality of heat exchange branch pipes 3, the cold water in the plurality of heat exchange branch pipes 3 is subjected to heat exchange treatment with the boiler tail gas, the cold water is injected back to the bottom through the waste heat recovery, and the bottom is also the bottom discharge port, the exhaust gas temperature is cooled, the hot water is extruded upward by the increase of the cold water injected from the bottom through the waste heat recovery, the temperature of the hot water is increased to the temperature close to the boiling water temperature, and then the water consumed by the boiler steam is supplemented, so that the steam generator is not cooled during water replenishment, and under the continuous impact of the high-temperature flame in the hearth, a strong and stable gas production effect is achieved, after a period of use, the motor 12 drives the screw rod 15 to rotate, thereby driving the sleeve 16 to move up and down, driving the mounting seat 17 to move up and down, and then driving the plurality of cleaning pieces 18 to move up and down, so that the surface of the plurality of heat exchange branch pipes 3 is cleaned, and the adhesion of dust or foreign matters on the surface of the heat exchange branch pipes 3 is avoided, thereby avoiding the influence on the heat exchange efficiency.

[0027] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high efficiency boiler heat recovery unit comprising a heat exchange tank (1) characterised in that: The bottom of the heat exchange tank (1) is fixedly provided with a shunt tank (2), the top of the shunt tank (2) is fixedly communicated with a plurality of heat exchange branch pipes (3), the top of the plurality of heat exchange branch pipes (3) is fixedly communicated with a collecting pipe (4), one side of the bottom of the heat exchange tank (1) is fixedly provided with a fixing seat (11), the top of the inner side of the fixing seat (11) is fixedly installed with a motor (12), the output end of the motor (12) extends to the inside of the heat exchange tank (1) and is fixedly connected with a lead screw (15), the surface of the lead screw (15) is threadedly provided with a sleeve (16), one side of the sleeve (16) is fixedly provided with a mounting seat (17), the surface of the mounting seat (17) is fixedly provided with a plurality of cleaning pieces (18), the plurality of cleaning pieces (18) are respectively sleeved on the surfaces of the plurality of heat exchange branch pipes (3), the top of one side of the heat exchange tank (1) is fixedly communicated with an air inlet pipe (13), one end of the air inlet pipe (13) away from the heat exchange tank (1) is threadedly provided with a sealing cover (19), the middle of the sealing cover (19) is fixedly communicated with an air guide pipe (14).

2. A high efficiency boiler heat recovery unit according to claim 1, wherein: One end of the inner side of the air inlet pipe (13) is provided with a chute (21), the inside of the chute (21) is slidably provided with a filter screen (22), the inner side of the sealing cover (19) is fixedly provided with two supporting rods (20), and the two supporting rods (20) are correspondingly provided with the filter screen (22).

3. A high efficiency boiler heat recovery unit according to claim 1, wherein: One side of the bottom of the inner wall of the heat exchange tank (1) is fixedly provided with a guide rod (8), the surface of the guide rod (8) is slidably provided with a guide seat (9), and the guide seat (9) is fixedly connected with the mounting seat (17).

4. A high efficiency boiler heat recovery device according to claim 1, wherein: The bottom of one side of the heat exchange tank (1) away from the air inlet pipe (13) is provided with a gas outlet pipe (10) fixedly communicated.

5. A high efficiency boiler heat recovery device according to claim 1, wherein: The middle of the bottom of the heat exchange tank (1) is fixedly communicated with a water inlet pipe (7), and one end of the water inlet pipe (7) extends to the inside of the heat exchange tank (1) and is communicated with the shunt tank (2).

6. A high efficiency boiler heat recovery device according to claim 1, wherein: The top of the heat exchange tank (1) is provided with a top cover (5), the middle of the top cover (5) is fixedly communicated with a water outlet pipe (6), and the water outlet pipe (6) is communicated with the collecting pipe (4).

7. A high efficiency boiler heat recovery device according to claim 6, wherein: The connection between the heat exchange tank (1) and the top cover (5) is fixedly provided with a first connecting ring (23), the connection between the top cover (5) and the heat exchange tank (1) is fixedly provided with a second connecting ring (24), and a plurality of fixing bolts (25) are threadedly arranged between the first connecting ring (23) and the second connecting ring (24).

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