CN216630318U

CN216630318U - Spraying device for boiler flue gas desulfurization

Info

Publication number: CN216630318U
Application number: CN202220101666.6U
Authority: CN
Inventors: 杨镜翰
Original assignee: Liaoning Qinglin Environmental Technology Co ltd
Current assignee: Liaoning Qinglin Environmental Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-05-31
Anticipated expiration: 2032-01-14

Abstract

The utility model is suitable for the technical field of boiler flue gas treatment, and provides a spray device for boiler flue gas desulfurization, which comprises a spray tower body, wherein the bottom of the circumferential surface of the spray tower body is communicated with a flue gas discharge pipe, a spray head for spraying flue gas is arranged in the spray tower body, the top of the spray tower body is communicated with an exhaust pipe and a smoke return pipe, one side of the smoke return pipe, which is far away from the top of the spray tower body, extends to the bottom of the spray tower body and is communicated with the spray tower body, the bottom of the exhaust pipe is provided with a first electromagnetic valve, and one side of the smoke return pipe, which is connected with the top of the spray tower body, is provided with a second electromagnetic valve. The utility model can suck the treated smoke back into the smoke pipe through the action of the fan and then discharge the smoke from the lower part inside the spray tower body, so that the smoke can be sprayed by the spray head for multiple times, and the effect of repeated purification treatment is achieved.

Description

Spraying device for boiler flue gas desulfurization

Technical Field

The utility model belongs to the technical field of boiler flue gas treatment, and particularly relates to a spraying device for boiler flue gas desulfurization.

Background

The spray tower is a common device for treating boiler flue gas, after the flue gas enters from an inlet at the lower part of the spray tower, when the flue gas moves from bottom to top, the flue gas meets water drops sprayed from top to bottom, and the flue gas exchanges heat with water to reduce the temperature of the flue gas; meanwhile, the particulate matters carried in the flue gas are wetted by water drops, the small particles are mutually condensed into larger particles, and the larger particles leave the waste gas flow and flow to the lower part of the washing tower along with water due to the action of gravity, so that the purification effect is achieved.

The existing spray tower is not high in treatment efficiency of boiler flue gas, and can not meet the emission standard after treating the flue gas with serious pollution, so that secondary treatment is needed, more time and energy are consumed, and therefore, the spray device for boiler flue gas desulfurization is designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spraying device for boiler flue gas desulfurization, which aims to solve the problems in the background technology.

The utility model is realized in such a way that a spray device for boiler flue gas desulfurization comprises a spray tower body, wherein the bottom of the circumferential surface of the spray tower body is communicated with a flue gas inlet pipe, a spray head for spraying flue gas is arranged in the spray tower body, the top of the spray tower body is communicated with an exhaust pipe and a smoke return pipe, one side, away from the top of the spray tower body, of the smoke return pipe extends to the bottom of the spray tower body and is communicated with the spray tower body, the bottom of the exhaust pipe is provided with a first electromagnetic valve, one side, connected with the top of the spray tower body, of the smoke return pipe is provided with a second electromagnetic valve, and the smoke return pipe is provided with a fan for sucking the flue gas in the spray tower body from the top of the spray tower body into the smoke return pipe.

Preferably, the annular pipe is installed at spray column body inner wall top, the quantity of shower nozzle is a plurality of, and is a plurality of the shower nozzle is equidistant annular array distribution fixed mounting on the annular pipe, be provided with on the spray column body and be used for the storage water tank with liquid toward the intraductal transport of annular for a plurality of shower nozzles can spray liquid in the spray column body downwards simultaneously, play the effect of evenly spraying.

Preferably, storage water tank fixed connection is in spray tower body one side and its inside liquid that sprays usefulness that is equipped with, the bottom intercommunication of spray tower body has drain pipe one, just one side intercommunication that the spray tower body was kept away from to drain pipe one is on the storage water tank, the inner wall bottom fixed mounting of storage water tank has the water pump, the water inlet and the inside of storage water tank of water pump are linked together, the delivery port intercommunication of water pump has inlet tube one, just one side that the inlet tube one kept away from the water pump runs through storage water tank top and spray tower body one side and is linked together with the ring pipe for liquid after spraying can flow into in the storage water tank through drain pipe one, and flow back to in the ring pipe through the effect of water pump, with the circulation spray use, play resources are saved's effect.

Preferably, the top of the water storage tank is communicated with a second water inlet pipe, the bottom of one side of the water storage tank is communicated with a second water outlet pipe, a control valve is installed on the second water outlet pipe, liquid in the water storage tank can be discharged by opening the control valve, and then new treatment liquid can be poured into the water storage tank through the second water inlet pipe to finish liquid replacement.

Preferably, one side of storage water tank is provided with the window, the window includes and sets up the bar hole on storage water tank surface along storage water tank direction of height, the downthehole fixedly connected with transparent plate of bar to the staff observes how much and the state of the liquid level of liquid in the storage water tank through the window.

Preferably, the inner wall of the spray tower body is provided with a defogging plate directly above the annular pipe, so that tiny water drops contained in the treated smoke can be filtered, and the design is more reasonable.

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

1. the utility model can suck the treated smoke back into the smoke pipe through the action of the fan and then discharge the smoke from the lower part inside the spray tower body, so that the smoke can be sprayed by the spray head for multiple times, the effect of repeated purification treatment is achieved, the device can carry out multiple treatments according to the smoke pollution concentration to ensure that the smoke reaches the emission standard, and the effect of treating the smoke is effectively improved.

2. The sprayed liquid can flow into the water storage tank through the first drain pipe and flow back into the annular pipe under the action of the water pump so as to be circularly sprayed for use, and the effect of saving resources is achieved.

3. The utility model is convenient for the staff to observe the liquid level and the state of the liquid in the water storage tank through the window by arranging the window, thereby facilitating the timely liquid replacement/liquid adding.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic view of the direction A-A of the present invention;

FIG. 4 is a schematic view of the direction B-B of the present invention;

FIG. 5 is a schematic view of the present invention in the direction C-C;

in the figure: 1. a spray tower body; 2. a flue gas discharge pipe; 21. a one-way valve; 3. a spray head; 4. an annular tube; 5. a water storage tank; 51. a water inlet pipe II; 52. a second water drainage pipe; 53. a window; 6. a first water drainage pipe; 7. a water pump; 8. a first water inlet pipe; 9. an exhaust pipe; 91. a first electromagnetic valve; 10. a smoke returning pipe; 11. a fan; 12. a defogging plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-5, the present invention provides a spray device for desulfurizing flue gas of a boiler: the spraying tower comprises a spraying tower body 1, wherein the bottom of the circumferential surface of the spraying tower body 1 is communicated with a flue gas discharging pipe 2, a spray head 3 used for spraying flue gas is arranged in the spraying tower body 1, the top of the spraying tower body 1 is communicated with an exhaust pipe 9 and a smoke return pipe 10, one side of the smoke return pipe 10, which is far away from the top of the spraying tower body 1, extends to the bottom of the spraying tower body 1 and is communicated with the spraying tower body 1, a first electromagnetic valve 91 is arranged at the bottom of the exhaust pipe 9, a second electromagnetic valve is arranged at one side of the smoke return pipe 10, which is connected with the top of the spraying tower body 1, a fan 11 used for sucking flue gas in the spraying tower body 1 into the smoke return pipe 10 from the top is arranged on the smoke return pipe 10, therefore, after the flue gas to be treated enters the spraying tower body 1 through the flue gas discharging pipe 2, the flue gas can be sprayed by the spray head 3 to obtain purification treatment, at the moment, the second electromagnetic valve can be opened by closing the first electromagnetic valve 91, can inhale in the flue gas after handling through the effect of fan 11 in the smoke return pipe 10, then discharge from the inside below of spray column body 1 again, make the flue gas can be many times spray through shower nozzle 3, reach the effect of repeated purification treatment, so that the device can carry out a lot of according to the flue gas pollution concentration and handle in order to ensure that the flue gas reaches emission standard, the effectual effect of handling the flue gas that has improved, and close solenoid valve two after the flue gas is handled, and open solenoid valve 91, can make the flue gas normally discharge through blast pipe 9, it needs to explain that a check valve 21 is installed to the flue gas emits into pipe 2, so that the flue gas that smoke return pipe 10 discharges back can not emit into pipe 2 internal reflux from the flue gas, such design can be more reasonable.

Referring to fig. 3 and 5, regarding the specific connection manner between the spray heads 3 and the spray tower body 1, the annular pipe 4 is installed at the top of the inner wall of the spray tower body 1, the number of the spray heads 3 is multiple, and the multiple spray heads 3 are distributed and fixedly installed on the annular pipe 4 in an equidistant annular array, and the spray tower body 1 is provided with the water storage tank 5 for conveying liquid into the annular pipe 4, so that the multiple spray heads 3 can spray liquid downward in the spray tower body 1 at the same time, thereby achieving the effect of uniform spraying.

In order to convey liquid for spraying into the annular pipe 4, in some embodiments, it is provided that the water storage tank 5 is fixedly connected to one side of the spray tower body 1 and filled with the liquid for spraying, the bottom of the spray tower body 1 is communicated with the first drain pipe 6, one side of the first drain pipe 6, which is far away from the spray tower body 1, is communicated with the water storage tank 5, the bottom of the inner wall of the water storage tank 5 is fixedly provided with the water pump 7, a water inlet of the water pump 7 is communicated with the inside of the water storage tank 5, a water outlet of the water pump 7 is communicated with the first inlet pipe 8, one side of the first inlet pipe 8, which is far away from the water pump 7, penetrates through the top of the water storage tank 5, is communicated with one side of the spray tower body 1 and is communicated with the annular pipe 4, by the design, the sprayed liquid can flow into the water storage tank 5 through the first drain pipe 6 and flow back into the annular pipe 4 under the action of the water pump 7 for cyclic spraying, the effect of saving resources is achieved.

In addition, the liquid needs to be replaced after being used for a long time so as to ensure the treatment effect, the specific mode of replacing the treatment liquid is as follows, the top of the water storage tank 5 is communicated with a second water inlet pipe 51, the bottom of one side of the water storage tank 5 is communicated with a second water outlet pipe 52, and the second water outlet pipe 52 is provided with a control valve, so that the liquid in the water storage tank 5 can be discharged by opening the control valve, and then the new treatment liquid is poured into the water storage tank 5 through the second water inlet pipe 51.

Referring to fig. 1, a window 53 is disposed on one side of the water storage tank 5, the window 53 includes a strip-shaped hole formed in the surface of the water storage tank 5 along the height direction of the water storage tank 5, and a transparent plate is fixedly connected in the strip-shaped hole, so that a worker can observe the liquid level and the state of the liquid in the water storage tank 5 through the window 53, and can change/add the liquid in time.

In some embodiments, the inner wall of the spray tower body 1 is provided with the defogging plate 12 located right above the annular pipe 4, so as to filter the tiny water drops contained in the treated flue gas, and the water drops fall back to the inside of the spray tower body 1, which is more reasonable in design.

In the device, all electric devices and drivers matched with the electric devices are arranged, and all driving parts, namely power elements, the electric devices and adaptive power supplies, are connected through leads by a person skilled in the art, and specific connecting means refer to the above expression that the electric devices are electrically connected in sequence, and detailed connecting means thereof are well known in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a spray set for boiler flue gas desulfurization, includes spray column body (1), its characterized in that: the utility model discloses a spray column, including spray column body (1), the circumference surface bottom intercommunication of spray column body (1) has the flue gas to emit into and manages (2), be provided with in spray column body (1) and be used for carrying out shower nozzle (3) that spray to the flue gas, the top intercommunication of spray column body (1) has blast pipe (9) and returns tobacco pipe (10), return tobacco pipe (10) keep away from one side at spray column body (1) top and extend to the bottom of spray column body (1) and be linked together with spray column body (1), solenoid valve (91) are installed to the bottom of blast pipe (9), return tobacco pipe (10) and the continuous one side in spray column body (1) top and install solenoid valve two, just it is used for in spray column body (1) flue gas to follow its top and returns inspiratory fan (11) in tobacco pipe (10) to install on returning tobacco pipe (10).

2. The spray device for desulfurizing the flue gas of a boiler according to claim 1, wherein: annular pipe (4) are installed at spray column body (1) inner wall top, the quantity of shower nozzle (3) is a plurality of, and is a plurality of shower nozzle (3) are equidistant annular array distribution fixed mounting on annular pipe (4), be provided with on spray column body (1) and be used for with liquid toward annular pipe (4) interior storage water tank (5) of carrying.

3. The spraying device for desulfurizing the flue gas of the boiler as claimed in claim 2, wherein: storage water tank (5) fixed connection is equipped with the liquid that sprays the usefulness in spray column body (1) one side and its inside, the bottom intercommunication of spray column body (1) has drain pipe (6), just one side intercommunication that spray column body (1) was kept away from in drain pipe (6) is on storage water tank (5), the inner wall bottom fixed mounting of storage water tank (5) has water pump (7), the water inlet and the inside storage water tank (5) of water pump (7) are linked together, the delivery port intercommunication of water pump (7) has inlet tube (8), just one side that water pump (7) were kept away from in inlet tube (8) runs through storage water tank (5) top and spray column body (1) one side and is linked together with ring channel (4).

4. The spraying device for desulfurizing the flue gas of the boiler as claimed in claim 2, wherein: the top of the water storage tank (5) is communicated with a second water inlet pipe (51), the bottom of one side of the water storage tank (5) is communicated with a second water outlet pipe (52), and the second water outlet pipe (52) is provided with a control valve.

5. The spraying device for desulfurizing the flue gas of the boiler as claimed in claim 2, wherein: one side of storage water tank (5) is provided with window (53), window (53) include along storage water tank (5) direction of height set up in the bar hole on storage water tank (5) surface, the downthehole fixedly connected with transparent plate of bar.

6. The spraying device for desulfurizing the flue gas of the boiler as claimed in claim 2, wherein: and a defogging plate (12) positioned right above the annular pipe (4) is arranged on the inner wall of the spray tower body (1).