CN215311214U - Tube bank defroster - Google Patents

Abstract

The utility model discloses a demister for a tube bundle, which comprises a tube body, wherein the inner side of the tube body sequentially comprises a spraying cavity, a demisting and dedusting cavity and a cleaning cavity from bottom to top, the side wall of the tube body is fixedly connected with an air inlet, and the bottom of the tube body is fixedly connected with a sewage outlet. According to the utility model, the multi-stage spray assembly is arranged, the first water nozzle and the second water nozzle in the spray assembly are arranged in a cross-jet mode, larger particles in flue gas can be flushed away, the blockage of a demister and a pipe bundle deep dust removal unit is avoided, water discharged from a sewage discharge port enters the circulating water tank after being filtered by the filter box, the water filtered in the circulating water tank is conveyed to the spray assembly again through the circulating pump, the spray assembly can be recycled, the flow regulating assembly is arranged between the filtering water supplementing device and the spray assembly, the flow of the spray assembly can be regulated according to the current flue gas load condition, and the spherical third water nozzles arranged in the spray assembly are flushed, so that the flushing range is wide and the flushing effect is good.

Description

Tube bank defroster

Technical Field

The utility model relates to the technical field of environmental protection, in particular to a pipe bundle demister.

Background

The demister equipment arranged in the desulfurization tower of wet desulfurization process equipment is key equipment in a wet flue gas desulfurization system, has the functions of collecting wet desulfurization spray pipe slurry, removing water mist and dust in flue gas by purified gas before the gas is discharged out of the desulfurization tower after SO2 gas is collected, and has the prominent problem of demister scaling in the actual use process, easily causes local blockage, seriously even causes overall collapse, and brings hidden troubles to desulfurization safety operation.

Current tube bank defroster device generally includes a plurality of cylindric defogging devices, the separator, structure such as collector ring and water conservancy diversion ring is constituteed, this kind of defroster relies on inertia effect and the action of gravity of liquid drop in the flue gas to be theory of operation, the flue gas forms the whirl under the blade effect, under the reducing condition, the change of speed, make little fog drop and dirt particle mix rotatory to the bobbin wall formation liquid film layer, constantly catch the little fog drop and form big fog drop back when the little fog drop, fall back to the desulfurizing tower in the action of gravity, play defogging dust removal effect. Compare folded plate formula defroster and can catch droplet particle diameter wide range, through the defogging of multilayer whirl, can form multistage defogging process, however this kind of structure causes particle adhesion on section of thick bamboo wall in the flue gas unavoidably, when the cleaning performance is not good, and the local jam of defroster, tube bank dust remover just appears, causes the internal load too high, and the processing energy consumption increases, and the defogging dust removal effect can be more and more poor along with aggravating of jam.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a tube bundle demister.

In order to achieve the purpose, the utility model adopts the following technical scheme: the tube bundle demister comprises a tube body, wherein the inner side of the tube body consists of a spray cavity, a demisting dedusting cavity and a cleaning cavity from bottom to top in sequence, the side wall of the tube body is fixedly connected with an air inlet, the bottom of the tube body is fixedly connected with a drain outlet, one side of the tube body opposite to the air inlet is fixedly connected with a plurality of groups of spray tubes and flushing tubes from bottom to top in sequence, the top of the tube body is fixedly connected with an air outlet, the air inlet, the drain outlet and the outer walls of the plurality of groups of spray tubes all penetrate through the outer wall of the tube body to the inner side of the spray cavity, the flushing tubes and the outer walls of the air outlet all penetrate through the outer wall of the tube body to the cleaning cavity, the plurality of groups of spray tubes extend into the end part of the tube body and are fixedly connected with a flushing component, the inner side wall of the tube body is fixedly connected with a demisting dedusting device, the demisting dedusting device is fixedly connected with the inner side wall of the tube body and is positioned on the flushing component, Between the spray assembly, fixedly connected with is used for filtering the moisturizing subassembly and the flow control assembly that the moisturizing subassembly flow was filtered in the control of the filtration moisturizing subassembly that is used for replenishing water to the spray assembly between the tip that body was kept away from to drain, shower, the one end fixedly connected with water purification case that the body was kept away from to the flushing pipe, water purification case top fixedly connected with flushing pump, the exit end and the flushing pipe fixed connection of flushing pump, the flushing pipe passes through flushing pump and water purification case fixed connection.

As a further description of the above technical solution:

the spray assembly comprises a plurality of groups of spray trays, a plurality of groups of first water nozzles, a plurality of groups of second water nozzles and a plurality of groups of spray trays, wherein the spray trays are fixedly connected on the inner side wall of a spray cavity, the groups of the first water nozzles and the second water nozzles are fixedly connected on the lower surface of the spray tray, the groups of the first water nozzles and the second water nozzles are arranged on the outer side of the plurality of groups of second water nozzles, and the groups of the spray trays extend into the end part of the pipe body and are fixedly connected with the top of the spray tray and are communicated with the groups of the first water nozzles and the groups of second water nozzles respectively, and the groups of the first water nozzles and the groups of second water nozzles are arranged on the lower surface of the spray tray and are arranged on the inner side wall of the pipe body.

As a further description of the above technical solution:

the washing assembly comprises a support, a washing disc and a plurality of groups of third water nozzles, the support is fixedly connected to the inner side wall of the washing cavity, the washing disc is fixedly connected to the lower surface of the support, and the plurality of groups of third water nozzles are arranged on the lower surface of the washing disc in a spherical shape by taking the center of the washing disc as the center of a circle.

As a further description of the above technical solution:

the demisting and dedusting device comprises a demister and a tube bundle deep dedusting unit, wherein the demister and the tube bundle deep dedusting unit are sequentially and fixedly connected with the inner side wall of the demisting and dedusting cavity from bottom to top.

As a further description of the above technical solution:

the water replenishing and filtering assembly comprises a filter box, a circulating water tank, a circulating pump and a water replenishing pipe, wherein the filter box is fixedly connected to the end part of the pipe body far away from the sewage discharge outlet, the circulating water tank is fixedly connected to the side wall of the filter box, the circulating pump is fixedly connected to the upper surface of the circulating water tank, and the water replenishing pipe is fixedly connected to the outlet end of the circulating pump.

As a further description of the above technical solution:

the flow control subassembly includes shunt, six flow control valves, six flow meters, shunt fixed connection keeps away from the tip of circulating pump at the moisturizing pipe, the shunt inboard is provided with a set of inlet runner and six export subchannels that link up with it, shunt inlet runner and moisturizing pipe fixed connection, the one end fixed connection of body is kept away from respectively with the multiunit shower to six export subchannels of shunt, six equal fixed connection of flow control valves, six flow meters are at the shunt antetheca, six flow control valves, six flow meters link up with six export subchannels of shunt respectively.

The utility model has the following beneficial effects:

compared with the prior art, this tube bank defroster, through setting up multistage spray assembly at defogging dust collector lower extreme, and set first water injection well choke and second water injection well choke to the form of cross injection in the spray assembly, can wash away great particulate matter in the flue gas in advance, avoid demister and tube bank degree of depth dust removal unit to block up, and through the filtration moisturizing subassembly that sets up, get into circulating water tank after filtering from drain exhaust water through the filter box, water after filtering in the circulating water tank is sent to spray assembly once more through the circulating pump, reciprocal circulation uses, and be provided with flow control assembly between filtration moisturizing device and spray assembly, can adjust spray assembly's flow size according to current flue gas load situation, through the multiunit third water injection well choke that is the sphere form that sets up in the flushing assembly, the washing range is wide, washing effect is good.

Drawings

FIG. 1 is a schematic view of the overall configuration of a tube bundle mist eliminator as contemplated by the present invention;

FIG. 2 is a sectional view of the inner side structure of the tube body of the demister for tube bundle according to the present invention;

FIG. 3 is a schematic view of a partial configuration of a flow splitter for a tube bundle mist eliminator as set forth in the present invention;

FIG. 4 is a partial bottom view of a cleaning assembly of the mist eliminator of a tube bundle according to the present invention;

FIG. 5 is a partial bottom view of the spray assembly of the mist eliminator in accordance with the present invention.

Illustration of the drawings:

1. a pipe body; 2. an air inlet; 3. a sewage draining outlet; 4. an air outlet; 5. a spray chamber; 6. a demisting and dedusting cavity; 7. a cleaning chamber; 8. a filter box; 9. a circulating water tank; 10. a circulation pump; 11. a water replenishing pipe; 12. a flow divider; 13. a shower pipe; 14. a water purifying tank; 15. a flush pump; 16. a flush tube; 17. a flow regulating valve; 18. a flow meter; 19. spraying a disc; 20. a first water nozzle; 21. a second water nozzle; 22. a demister; 23. a tube bundle deep dust removal unit; 24. a support; 25. a rinsing pan; 26. and a third water nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a tube bundle mist eliminator: the cleaning device comprises a pipe body 1, wherein the inner side of the pipe body 1 is sequentially composed of a spraying cavity 5, a demisting dedusting cavity 6 and a cleaning cavity 7 from bottom to top, a side wall of the pipe body 1 is fixedly connected with an air inlet 2, the bottom of the pipe body 1 is fixedly connected with a sewage discharge outlet 3, one side of the pipe body 1 opposite to the air inlet 2 is fixedly connected with a plurality of groups of spraying pipes 13 and a flushing pipe 16 from bottom to top in sequence, the top of the pipe body 1 is fixedly connected with an air outlet 4, the air inlet 2, the sewage discharge outlet 3 and the outer wall of each group of spraying pipes 13 all penetrate through the outer wall of the pipe body 1 to the inner side of the spraying cavity 5, the flushing pipe 16 and the outer wall of the air outlet 4 all penetrate through the outer wall of the pipe body 1 to the cleaning cavity 7, the end part of each group of the spraying pipes 13 extending into the pipe body 1 is fixedly connected with a spraying component, the end part of the flushing pipe 16 extending into the pipe body 1 is fixedly connected with a demisting dedusting device, the inner side wall of the pipe body 1, the demisting dedusting device is fixedly connected with a demisting dedusting device, the inner side wall of the pipe 1, the dedusting device is fixedly connected with the inner side wall of the flushing component, Between the spray set, fixedly connected with is used for filtering the moisturizing subassembly and the flow control assembly of control filtration moisturizing subassembly flow to spray set make-up water between the tip that drain 3, shower 13 kept away from body 1, and the one end fixedly connected with water purification case 14 of body 1 is kept away from to flushing pipe 16, 14 top fixedly connected with flushing pump 15 in water purification case, 15 exit end and the 16 fixed connection of flushing pipe of flushing pump, and flushing pipe 16 passes through flushing pump 15 and water purification case 14 fixed connection.

The spraying component comprises a plurality of groups of spraying discs 19, a plurality of groups of first water nozzles 20 and a plurality of groups of second water nozzles 21, the plurality of groups of spraying discs 19 are all fixedly connected on the inner side wall of the spraying cavity 5, the plurality of groups of first water nozzles 20 and the plurality of groups of second water nozzles 21 are all fixedly connected on the lower surface of the spraying discs 19, the plurality of groups of first water nozzles 20 and the plurality of groups of second water nozzles 21 are all arranged on the lower surface of the spraying discs 19, the plurality of groups of spraying pipes 13 extend into the tube body 1, the end parts of the plurality of groups of spraying discs 19 are respectively fixedly connected with the top parts of the plurality of groups of spraying discs 19 and are respectively communicated with the plurality of groups of first water nozzles 20 and the plurality of groups of second water nozzles 21, the plurality of groups of first water nozzles 20 and the plurality of groups of second water nozzles 21 are all arranged on the lower surface of spraying discs 19 in an inclined state, the inclined angles of the plurality of groups of first water nozzles 20 are towards the center of the tube body 1, the inclined angles of the plurality of groups of second water nozzles 21 are arranged in an inclined manner of mutually crossed manner, after the water spray, can form intensive water net, can catch most particulate matter in the flue gas, avoid too much particulate matter to cause defogging dust collector to block up.

The flushing assembly comprises a support 24, a flushing disc 25 and a plurality of groups of third water nozzles 26, the support 24 is fixedly connected to the inner side wall of the cleaning cavity 7, the flushing disc 25 is fixedly connected to the lower surface of the support 24, the plurality of groups of third water nozzles 26 are arranged on the lower surface of the flushing disc 25 in a spherical shape by taking the center of the flushing disc 25 as the center of a circle, and the water outlets of the plurality of groups of third water nozzles 26 are arranged in a spherical shape, so that the flushing range is wider, and the flushing effect is good.

Demisting and dedusting device includes demister 22, tube bank degree of depth dust removal unit 23, and demister 22, tube bank degree of depth dust removal unit 23 are according to from the bottom up order fixed connection in proper order at 6 inside walls in demisting dedusting cavity, and demister 22 is used for the aqueous vapor separation of flue gas, and tube bank degree of depth dust removal unit 23 is used for further getting rid of aqueous vapor and tiny particulate matter.

Filtration moisturizing subassembly includes rose box 8, circulation tank 9, circulating pump 10, moisturizing pipe 11, 8 fixed connection of rose box are at the tip that body 1 was kept away from to drain 3, 9 fixed connection of circulation tank are at 8 lateral walls of rose box, 10 fixed connection of circulating pump are at 9 upper surfaces of circulation tank, 11 fixed connection of moisturizing pipe are at circulating pump 10 exit ends, the water that spray assembly and washing subassembly used filters through 3 entering rose box 8 of drain, then the overflow is through circulation tank 9, the rethread circulating pump 10 pumps out and supplies to spray the subassembly and use repeatedly.

The flow regulating assembly comprises a flow divider 12, six sets of flow regulating valves 17 and six sets of flow meters 18, the flow divider 12 is fixedly connected to the end part, far away from the circulating pump 10, of the water replenishing pipe 11, a set of inlet runners and six sets of outlet runners communicated with the inlet runners are arranged on the inner side of the flow divider 12, the inlet runners of the flow divider 12 are fixedly connected with the water replenishing pipe 11, the six sets of outlet runners of the flow divider 12 are respectively and fixedly connected with one ends, far away from the pipe body 1, of the multiple sets of spray pipes 13, the six sets of flow regulating valves 17 and the six sets of flow meters 18 are fixedly connected to the front wall of the flow divider 12, the six sets of flow regulating valves 17 and the six sets of flow meters 18 are respectively communicated with the six sets of outlet runners of the flow divider 12, the multiple sets of flow regulating valves 17 and the flow meters 18 can be adjusted and controlled according to the spray strength of each set of spray assembly, and can be optimally adjusted according to the smoke load.

The working principle is as follows: inside the flue gas gets into body 1 from air inlet 2, ascending in-process, through big dust particle desorption in the multiunit spray assembly with the flue gas, get rid of aqueous vapor through demister 22 again, further get into tube bank degree of depth dust removal unit 23 and further get rid of the particulate matter, discharge from gas outlet 4 at last, after operation a period, draw water from water purification case 14 through flush pump 15, send to the flush assembly and wash the inboard, water after the washing flows down to drain 3 and overflows to circulation tank 9 through filter box 8 again.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (6)

1. Tube bank defroster, including body (1), its characterized in that: the inner side of the pipe body (1) sequentially comprises a spraying cavity (5), a demisting dedusting cavity (6) and a cleaning cavity (7) from bottom to top, the side wall of the pipe body (1) is fixedly connected with an air inlet (2), the bottom of the pipe body (1) is fixedly connected with a sewage draining outlet (3), one side of the pipe body (1) opposite to the air inlet (2) is sequentially and fixedly connected with a plurality of groups of spraying pipes (13) and flushing pipes (16) from bottom to top, the top of the pipe body (1) is fixedly connected with an air outlet (4), the outer walls of the air inlet (2), the sewage draining outlet (3) and the plurality of groups of spraying pipes (13) all penetrate through the outer wall of the pipe body (1) to the inner side of the spraying cavity (5), the outer walls of the flushing pipes (16) and the air outlet (4) all penetrate through the outer wall of the pipe body (1) to the cleaning cavity (7), and a plurality of groups of spraying pipes (13) extend into the end part of the pipe body (1) and are fixedly connected with a spraying component, the end part of the flushing pipe (16) extending into the pipe body (1) is fixedly connected with a flushing component, the inner side wall of the pipe body (1) is fixedly connected with a demisting and dedusting device which is fixedly connected with the inner side wall of the pipe body (1) and is positioned between the flushing component and the spraying component, a filtering water replenishing component for replenishing water to the spraying component and a flow regulating component for controlling the flow of the filtering water replenishing component are fixedly connected between the end parts of the sewage draining outlet (3) and the spraying pipe (13) far away from the pipe body (1), one end of the flushing pipe (16) far away from the pipe body (1) is fixedly connected with a water purifying tank (14), the top of the water purifying tank (14) is fixedly connected with a flushing pump (15), the outlet end of the flushing pump (15) is fixedly connected with a flushing pipe (16), the flushing pipe (16) is fixedly connected with the water purifying tank (14) through a flushing pump (15).

2. A tube bundle mist eliminator as set forth in claim 1 in which: the spraying assembly comprises a plurality of groups of spraying discs (19), a plurality of groups of first water nozzles (20) and a plurality of groups of second water nozzles (21), wherein the plurality of groups of spraying discs (19) are fixedly connected to the inner side wall of the spraying cavity (5), the plurality of groups of first water nozzles (20) and second water nozzles (21) are fixedly connected to the lower surface of the spraying discs (19), the plurality of groups of first water nozzles (20) and second water nozzles (21) are arranged on the outer side of the plurality of groups of second water nozzles (21), the end parts of the plurality of groups of spraying pipes (13) extending into the pipe body (1) are fixedly connected with the tops of the plurality of groups of spraying discs (19) respectively and are communicated with the plurality of groups of first water nozzles (20) and the plurality of groups of second water nozzles (21) respectively, and are arranged on the lower surface of the spraying discs (19) in an inclined state, the first water injection well choke (20) of multiunit inclination is towards body (1) center, the multiunit second water injection well choke (21) inclination is towards body (1) inside wall.

3. A tube bundle mist eliminator as set forth in claim 1 in which: the washing assembly comprises a support (24), a washing disc (25) and a plurality of groups of third water nozzles (26), the support (24) is fixedly connected to the inner side wall of the washing cavity (7), the washing disc (25) is fixedly connected to the lower surface of the support (24), and the plurality of groups of third water nozzles (26) are arranged on the lower surface of the washing disc (25) in a spherical shape by taking the center of the washing disc (25) as the center of a circle.

4. A tube bundle mist eliminator as set forth in claim 1 in which: defogging dust collector includes demister (22), tube bank degree of depth dust removal unit (23), demister (22), tube bank degree of depth dust removal unit (23) are according to from the bottom up order fixed connection in proper order at defogging dust removal chamber (6) inside wall.

5. A tube bundle mist eliminator as set forth in claim 1 in which: filter moisturizing subassembly includes rose box (8), circulation tank (9), circulating pump (10), moisturizing pipe (11), the tip of body (1) is kept away from in drain (3) to rose box (8) fixed connection, circulation tank (9) fixed connection is at rose box (8) lateral wall, circulating pump (10) fixed connection is at circulation tank (9) upper surface, moisturizing pipe (11) fixed connection is at circulating pump (10) exit end.

6. A tube bundle mist eliminator as set forth in claim 5 in which: flow control assembly includes shunt (12), six flow control valve (17), six flow meter (18) of organizing, shunt (12) fixed connection keeps away from the tip of circulating pump (10) at moisturizing pipe (11), shunt (12) inboard is provided with a set of inlet runner and six export flow ways that link up with it, shunt (12) inlet runner and moisturizing pipe (11) fixed connection, the one end fixed connection of body (1) is kept away from respectively with multiunit shower (13) to six export flow ways of shunt (12), six equal fixed connection of flow control valve (17), six flow meter (18) of organizing are at shunt (12) antetheca, six flow control valve (17), six flow meter (18) of organizing link up with six export flow meter (12) respectively.

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