High-temperature flue gas quenching device

Abstract

The utility model discloses a high-temperature flue gas quenching device which is characterized in that a first concentric-square-shaped pipe is supported at the top of a tower body through a supporting column, a plurality of first connecting pipes are further arranged at the top of the tower body, the first connecting pipes are communicated with the first concentric-square-shaped pipe through first stainless steel corrugated pipes, and first nozzles are arranged at the bottoms of the first connecting pipes; a top spraying assembly can quickly respond and spray a cooling medium so as to preliminarily cool high-temperature flue gas entering a tank, a second concentric-square-shaped pipe is arranged outside a tower body through supporting channel steel, and the second concentric-square-shaped pipe is connected with a second connecting pipe on the side wall of the tower body through a second stainless steel corrugated pipe. The temperature of flue gas is further reduced through the secondary cooling assembly, the cooling effect is improved, meanwhile, a layer of continuous and uniform water film can be formed on the inner side of the tower wall through the second nozzle so as to protect the tank wall from being directly impacted and corroded by high-temperature flue gas, and therefore the service life of the tower body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to high temperature flue gas treatment technical field, concretely is a high temperature flue gas quenching device. BACKGROUND

[0002] The flue gas discharged by the incineration device of the chemical enterprise contains harmful substances such as HF, HCL and dust, and the temperature is very high, generally about 500 DEG C, the cooling of flue gas can be realized through the quenching tower, thereby the flue gas generated by the incinerator is rapidly cooled, and the standard of discharge is reached after a series of water washing and alkali washing.

[0003] At present, the high temperature flue gas quenching device of the spraying type mostly adopts the mode of top spraying to cool the flue gas, but only through the top spraying, the cooling effect is poor, so it is necessary to increase the height of the tower body, thereby increasing the cost, and in the mode of top spraying, the cooling medium is not easy to adhere to the inner wall of the tower body, or the cooling medium adheres to the upper part of the tower body, and volatilizes in the process, so that the inner wall of the lower part of the tower body is directly exposed, thereby in the long-term use process, the corrosive components in the flue gas cause damage to the tower wall, therefore, an improved technology is urgently needed to solve the problem existing in the prior art. UTILITY MODEL CONTENT

[0004] The utility model discloses a high temperature flue gas quenching device, through top spraying subassembly can respond rapidly and spray cooling medium, to realize the preliminary cooling of the high temperature flue gas that enters the tank, and the second L-shaped pipe is arranged on the outer portion of the tower body through the support channel steel, the temperature of flue gas is further reduced through the secondary cooling component, improves the cooling effect, and a continuous and uniform water film can be formed on the inner side of the tower wall through the second nozzle, so as to protect the tank wall from the direct impact and corrosion of the high temperature flue gas, thereby improving the service life of the tower body, to solve the problem raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a high temperature flue gas quenching device, including tower body, top spraying subassembly and secondary cooling component,

[0006] The bottom of the tower body is open and is provided with a fixed flange, the center position of the upper surface of the tower body is provided with an air inlet, the tower body is further provided with a plurality of support columns and a first connecting port, the first connecting port is provided with a first connecting pipe, the bottom of the first connecting pipe is arranged in the tower body and is installed with a first nozzle, the periphery of the tower body is provided with a plurality of support channel steels, the tower body is provided with four second connecting ports, the two second connecting ports of each group are symmetrically arranged on the two sides of the tower body, one of the second connecting ports is located above the support channel steel, and the other second connecting port is located below the support channel steel, the second connecting port is provided with a second connecting pipe, and the inner end of the second connecting pipe is arranged in the tower body and is installed with a second nozzle.

[0007] The top spraying assembly comprises a first coil pipe and a first stainless steel bellows, the lower surface of the first coil pipe is connected with the top end of the supporting column and is supported above the tower body, a first circulating water inlet is arranged on one side of the first coil pipe, and a plurality of first threaded interfaces are arranged on the lower surface of the first coil pipe and correspond to the first connecting pipes and are connected with the first stainless steel bellows through quick couplings respectively.

[0008] The secondary cooling assembly comprises a second coil pipe and a second stainless steel bellows, the lower surface of the second coil pipe is supported on the upper surface of the supporting channel steel, the second coil pipe is arranged on the periphery of the tower body through the supporting channel steel, a second circulating water inlet is arranged on one side of the second coil pipe, the lower surface and the upper surface of the second coil pipe are each provided with two second threaded interfaces, the second threaded interfaces located on the upper surface of the second coil pipe correspond to the second connecting pipes of the second connecting ports located above the supporting channel steel and are connected with the second stainless steel bellows in communication through quick couplings, and the second threaded interfaces located on the lower surface of the second coil pipe correspond to the second connecting pipes of the second connecting ports located below the supporting channel steel and are connected with the second stainless steel bellows in communication through quick couplings.

[0009] Preferably, the high-temperature flue gas quenching device further comprises a thermometer port and an observation port arranged on the two sides of the tower body.

[0010] Preferably, the high-temperature flue gas quenching device further comprises a thermometer port and an observation port arranged on the two sides of the tower body.

[0011] Preferably, the high-temperature flue gas quenching device further comprises a thermometer port and an observation port arranged on the two sides of the tower body.

[0012] Preferably, the high-temperature flue gas quenching device further comprises a thermometer port and an observation port arranged on the two sides of the tower body.

[0013] Compared with the prior art, the high-temperature flue gas quenching device has the advantages that:

[0014] (1) the top of the tower body is supported by a support column with a first coil pipe, and the top of the tower body is also provided with a plurality of first connecting pipes, the first connecting pipes are in communication with the first coil pipe through first stainless steel bellows, the bottom of the first connecting pipe is provided with a first nozzle, and the top spraying assembly can quickly respond and spray cooling medium to realize preliminary cooling of the high-temperature flue gas entering the tank, and the outside of the tower body is provided with a second coil pipe through a support channel steel, the second coil pipe is connected with the second connecting pipe of the side wall of the tower body through a second stainless steel bellows, and the second connecting pipe is provided with a second nozzle at the inner end, and the secondary cooling assembly further reduces the temperature of the flue gas and improves the cooling effect.

[0015] (2) a continuous and uniform water film can be formed on the inside of the tower wall through the second nozzle, so that the tank wall is protected from direct impact and corrosion of high-temperature flue gas, thereby prolonging the service life of the tower body.

[0016] (3) the second connecting ports are in pairs, one pair is located above the support channel steel, and the other pair is located below the support channel steel, so that the longitudinal spraying cooling area in the tower body is improved, and the cooling effect is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of the utility model;

[0018] Fig. 2 It is a top view structural schematic view of the utility model.

[0019] In the drawing: tower body 1, fixed flange 2, air inlet 3, support column 4, first connecting port 5, first connecting pipe 6, first nozzle 7, support channel steel 8, second connecting port 9, second connecting pipe 10, second nozzle 11, first coil pipe 12, first stainless steel bellows 13, first circulating water inlet 14, first threaded interface 15, second coil pipe 16, second stainless steel bellows 17, second circulating water inlet 18, second threaded interface 19, thermometer port 20, observation port 21, U-shaped fixing part 22, blind plate 23. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model;

[0021] It should be noted that in the description of the utility model, it should be noted that the terms "inner", "outer", "upper", "lower", "two sides", "one end", "the other end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0022] Please refer to Figs. 1-2 The utility model provides a technical scheme: a high temperature flue gas quenching device, including tower body 1, top spray subassembly and secondary cooling subassembly,

[0023] Tower body 1 bottom is open and is provided with fixed flange 2, and the center position of tower body 1 upper surface is provided with air inlet 3, and tower body 1 is also provided with a plurality of support columns 4 and first connecting port 5, and first connecting port 5 is provided with first connecting pipe 6, and the bottom of first connecting pipe 6 is arranged in tower body 1 and is installed with first nozzle 7, and the periphery of tower body 1 is provided with a plurality of support channel steel 8, and tower body 1 is provided with four second connecting ports 9, and two second connecting ports 9 form a group, and the two second connecting ports 9 of the same group are symmetrically arranged on the two sides of tower body 1, and one group of second connecting ports 9 is located above support channel steel 8, and the other group of second connecting ports 9 is located below support channel steel 8, and the included angle between adjacent second connecting ports 9 is 90 DEG, to ensure that the spray range covers the whole tower body 1 inside when spraying, and second connecting port 9 is provided with second connecting pipe 10, and the inner end of second connecting pipe 10 is arranged in tower body 1 and is installed with second nozzle 11, and first connecting pipe 6 and second connecting pipe 10 are connected with blind plate 23, and first connecting pipe 6 is connected with first connecting port 5 through blind plate 23, and second connecting pipe 10 is connected with second connecting port 9 through blind plate 23, and the connection and disassembly of first connecting pipe 6 and first connecting port 5 are realized through blind plate 23, and the connection and disassembly of second connecting pipe 10 and second connecting port 9 are realized simultaneously, and temperature gauge port 20 and observation port 21 are also arranged on the two sides of tower body 1, and temperature gauge port 20 is used for the installation of thermometer or temperature sensor, and the flue gas temperature after cooling is monitored in real time, and data is fed back to control system. According to temperature feedback, control system can automatically adjust the spray amount, ensure that the flue gas temperature rapidly drops to the preset safety range (such as below 200 DEG C), and observation port 21 is used for naked eye observation the situation inside tower body 1;

[0024] The top spray subassembly includes first coil pipe 12 and first stainless steel bellows 13, and the top end of support column 4 is connected with the lower surface of first coil pipe 12 and is supported above tower body 1, and first coil pipe 12 is provided with first circulating water inlet 14 on one side, and the lower surface of first coil pipe 12 is provided with a plurality of first threaded interfaces 15, and the first threaded interfaces 15 correspond to first connecting pipe 6 one by one and are connected with first stainless steel bellows 13 through quick couplings respectively.

[0025] The secondary cooling assembly comprises a second coil 16 and a second stainless steel bellows 17, the lower surface of the second coil 16 is supported on the upper surface of the supporting channel steel 8, the upper surface of the supporting channel steel 8 is provided with a U-shaped fixing piece 22, the second coil 16 is fastened and connected with the corresponding supporting channel steel 8 through the U-shaped fixing piece 22, the connection and disconnection of the second coil 16 and the supporting channel steel 8 are realized through the U-shaped fixing piece 22, the second coil 16 is arranged on the periphery of the tower body 1 through the supporting channel steel 8, one side of the second coil 16 is provided with a second circulating water inlet 18, the lower surface and the upper surface of the second coil 16 are both provided with two second threaded interfaces 19, the second threaded interfaces 19 located on the upper surface of the second coil 16 correspond to the second connecting pipes 10 of the second connecting ports 9 located above the supporting channel steel 8 one by one and are in intercommunication with the second stainless steel bellows 17 through quick couplings, the second threaded interfaces 19 located on the lower surface of the second coil 16 correspond to the second connecting pipes 10 of the second connecting ports 9 located below the supporting channel steel 8 one by one and are in intercommunication with the second stainless steel bellows 17 through quick couplings.

[0026] Installation method and principle: the support column 4 is welded at the top of the tower body 1, and the first return pipe 12 is welded with the top end of the support column 4, so that the first return pipe 12 is supported on the top of the tower body 1. The support channel steel 8 is welded with the outer surface of the tower body 1, and the second return pipe 16 is supported and fixed on the upper part of the support channel steel 8 through the U-shaped fixing piece 22, at this time, the second return pipe 16 is sleeved on the periphery of the tower body 1. Then the first connecting pipe 6 connected with the blind plate 23 is passed through the corresponding first connecting port 5, and the blind plate 23 is tightly connected with the flange of the first connecting port 5, and then the first nozzle 7 is installed at the bottom of the first connecting pipe 6, at the same time, the first stainless steel bellows 13 is connected with the first threaded interface 15 on the lower surface of the first return pipe 12 and the top end of the first connecting pipe 6 through the quick connector. The second connecting pipe 10 connected with the blind plate 23 is passed through the corresponding second connecting port 9, and the blind plate 23 is tightly connected with the flange of the second connecting port 9, and then the second nozzle 11 is installed at the inner end of the second connecting pipe 10, at the same time, the second stainless steel bellows 17 is connected with the second threaded interface 19 on the upper surface or the lower surface of the second return pipe 16 and the corresponding outer end of the second connecting pipe 10 through the quick connector, and the installation is completed. Before use, the high-temperature flue gas inlet pipeline is connected with the inlet port 3, the thermometer is installed at the thermometer port 20, the bottom of the tower body 1 is connected with the backwater pool with the outlet port, and the first circulating water inlet 14 and the second circulating water inlet 18 are respectively connected with the circulating water inlet pipeline. When in use, the high-temperature flue gas enters the tower body 1 from the inlet port 3, the first circulating water inlet 14 and the second circulating water inlet 18 send the circulating water into the first return pipe 12 and the second return pipe 16 respectively, and then the first nozzle 7 is used for top spraying, so that the first cooling is realized, and then the second nozzle 11 is used for secondary cooling, the flue gas is pressed downward and discharged from the bottom, and the tower body 1 is made of glass steel. The utility model discloses a reasonable structure, the first return pipe 12 is supported on the top of the tower body 1 through the support column 4, a plurality of first connecting pipes 6 are further arranged on the top of the tower body 1, the first connecting pipes 6 are communicated with the first return pipe 12 through the first stainless steel bellows 13, the first connecting pipes 6 are provided with the first nozzles 7 at the bottom, cooling medium can be sprayed rapidly through the top spraying assembly to realize the preliminary cooling of the high-temperature flue gas entering the tank, the second return pipe 16 is arranged on the outside of the tower body 1 through the support channel steel 8, the second return pipe 16 is connected with the second connecting pipes 10 on the side wall of the tower body 1 through the second stainless steel bellows 17, the second connecting pipes 10 are provided with the second nozzles 11 at the inner end, the temperature of the flue gas is further reduced through the secondary cooling assembly, the cooling effect is improved, and a continuous and uniform water film can be formed on the inside of the tower wall through the second nozzle 11, so that the tank wall is protected from the direct impact and corrosion of the high-temperature flue gas, and the service life of the tower body 1 is improved. The second connecting ports 9 are in pairs and form a group, one group is located above the support channel steel 8, and the other group is located below the support channel steel 8, so that the longitudinal spraying cooling area in the tower body 1 is improved, and the cooling effect is further improved.

[0027] The details not described in the utility model are the known technology of the skilled person in the art.

[0028] Finally, it should be pointed out that the above specific embodiments are only used to illustrate the technical solutions of the utility model and are not limiting. Although the utility model has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified and replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and all of them should be covered in the scope of the claims of the utility model.

Claims

1. A high temperature flue gas quenching device, characterized by: The tower body (1), the top spray assembly and the secondary cooling assembly are included. The bottom of the tower body (1) is open and is provided with a fixed flange (2), the central position of the upper surface of the tower body (1) is provided with an air inlet (3), the tower body (1) is further provided with a plurality of support columns (4) and a first connecting port (5), the first connecting port (5) is provided with a first connecting pipe (6), the bottom of the first connecting pipe (6) is arranged in the tower body (1) and is provided with a first nozzle (7), the periphery of the tower body (1) is provided with a plurality of support channel steels (8), the tower body (1) is provided with four second connecting ports (9), the second connecting ports (9) are arranged in pairs, the two second connecting ports (9) in the same group are symmetrically arranged on both sides of the tower body (1), one group of the second connecting ports (9) is located above the support channel steel (8), the other group of the second connecting ports (9) is located below the support channel steel (8), the second connecting port (9) is provided with a second connecting pipe (10), the inner end of the second connecting pipe (10) is arranged in the tower body (1) and is provided with a second nozzle (11); The top spray assembly includes a first return pipe (12) and a first stainless steel bellows (13), the lower surface of the first return pipe (12) is connected with the top end of the support column (4) and is supported above the tower body (1), one side of the first return pipe (12) is provided with a first circulating water inlet (14), the lower surface of the first return pipe (12) is provided with a plurality of first threaded interfaces (15), the first threaded interfaces (15) correspond to the first connecting pipes (6) one by one and are respectively connected with the first stainless steel bellows (13) through quick connectors; The secondary cooling assembly includes a second return pipe (16) and a second stainless steel bellows (17), the lower surface of the second return pipe (16) is supported on the upper surface of the support channel steel (8), the second return pipe (16) is arranged on the periphery of the tower body (1) through the support channel steel (8), one side of the second return pipe (16) is provided with a second circulating water inlet (18), the lower surface and the upper surface of the second return pipe (16) are both provided with two second threaded interfaces (19), the second threaded interfaces (19) located on the upper surface of the second return pipe (16) correspond to the second connecting pipes (10) of the second connecting ports (9) located above the support channel steel (8) one by one and are in communication with the second stainless steel bellows (17) through quick connectors, the second threaded interfaces (19) located on the lower surface of the second return pipe (16) correspond to the second connecting pipes (10) of the second connecting ports (9) located below the support channel steel (8) one by one and are in communication with the second stainless steel bellows (17) through quick connectors.

2. A high temperature flue gas quenching device according to claim 1, characterized in that: The tower body (1) is further provided with a thermometer port (20) and an observation port (21) on both sides.

3. A high temperature flue gas quenching device according to claim 1, characterized in that: The included angle between adjacent second connecting ports (9) is 90°.

4. A high temperature flue gas quenching device according to claim 1, characterized in that: The upper surface of the support channel steel (8) is provided with a U-shaped fixing piece (22), the second return pipe (16) is fastened and connected with the corresponding support channel steel (8) through the U-shaped fixing piece (22).

5. A high temperature flue gas quenching device as claimed in claim 1, wherein: The first connecting pipe (6) and the second connecting pipe (10) are connected with the blind plate (23), the first connecting pipe (6) is connected with the first connecting port (5) through the blind plate (23), and the second connecting pipe (10) is connected with the second connecting port (9) through the blind plate (23).

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