CN115569507A

CN115569507A - Multilayer countercurrent sprayer of oxidation tower

Info

Publication number: CN115569507A
Application number: CN202211101030.2A
Authority: CN
Inventors: 张平; 宋金宝; 鞠雪峰; 赵勇; 果大彤
Original assignee: Yantai Yunfeng Eco Environmental Industry Development Co ltd
Current assignee: Yantai Yunfeng Eco Environmental Industry Development Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-06

Abstract

The invention relates to the technical field of oxidation towers, in particular to a multilayer countercurrent sprayer for an oxidation tower, which comprises a water pumping component, an upward conveying component and a plurality of spraying devices, wherein each spraying device comprises a first thick pipe, a plurality of thin short pipes and a plurality of thin long pipes are fixedly arranged at the tail end of each first thick pipe, a third pressure reducing valve is fixedly arranged on each thin short pipe, the tail ends of the thin short pipes and the thin long pipes are vertically bent upwards, and a spraying head is fixedly arranged on each thread; the spray header is vertically and upwards sprayed, so that the reaction time of the sprayed liquid can be prolonged, exhausted gas is cleaner, the pressure of the liquid introduced into the plurality of first thick pipes can be basically kept consistent through the first pressure reducing valves, the plurality of second pressure reducing valves and the plurality of spray devices, and the liquid can be uniformly sprayed into each spray layer of the oxidation tower.

Description

Multilayer countercurrent sprayer of oxidation tower

Technical Field

The invention relates to the technical field of oxidation towers, in particular to a multilayer countercurrent sprayer for an oxidation tower.

Background

The oxidation tower is the front end oxidation device among the flue gas oxidation deNOx systems, in the flue gas treatment process who contains nitrogen oxide, because of the nitric oxide content in the flue gas accounts for the overwhelming majority, nitric oxide is difficult for being absorbed again and is handled, so need become nitrogen dioxide with nitric oxide oxidation, the flue gas after the processing just can reach emission standard, the oxidation tower is the professional equipment with nitric oxide oxidation to nitrogen dioxide, the flue gas gets into the oxidation tower and upwards rises with the oxidant that sprays downwards with the counter-current contact, the gas-liquid fully reacts, nitric oxide oxidizes to nitrogen dioxide under the oxidant effect. A plurality of spraying layers are arranged in a common oxidation tower and used for spraying liquid reacting with flue gas, but a counter-current spraying device of each layer runs independently, so that a plurality of water pumps and connecting pipes are needed, resource waste is caused, a spray head of the spraying device is directly sprayed downwards and used for generating collision reaction with small particles in the flue gas, but the direct downward spraying distance is limited, so that the liquid reacting time reacting with the flue gas is long, and the liquid sprayed by the common spray head is concentrated and cannot be uniformly sprayed in the spraying layers. In view of this, we propose a multi-layer counter-current sprayer for an oxidation tower.

Disclosure of Invention

In order to make up for the defects, the invention provides a multilayer countercurrent sprayer for an oxidation tower.

The technical scheme of the invention is as follows:

the utility model provides an oxidation tower multilayer is spray thrower against current, is including a plurality of spray set that is located each layer of oxidation tower, spray set includes first thick pipe, the equal fixed mounting in end of first thick pipe has thin nozzle stub of a plurality of and a plurality of elongated tube, equal fixed mounting third relief pressure valve on the thin nozzle stub, the equal vertical kickup in end of thin nozzle stub and elongated tube, and screw thread fixed mounting has the shower head, still including being used for providing the subassembly and upwards conveying the subassembly of drawing water power for spray set, the subassembly of drawing water includes the water pump, the delivery port department fixed mounting of water pump is in the water pump outlet pipe, it includes the booster pump to make progress the conveying subassembly, the first interface of left side fixedly connected with of water pump outlet pipe, the first relief pressure valve of first interface fixedly connected with.

Preferably, the ends of the first thick pipe are both vertically bent upwards and are positioned on the central line of the oxidation tower.

Preferably, the thin short pipes and the slender pipe are all positioned on the same horizontal plane, and the thin short pipes and the slender pipe are alternately arranged.

Preferably, the water outlet pipe of the water pump is integrally L-shaped.

Preferably, the water outlet of the booster pump is fixedly connected with a vertical water pipe, and the left side of the vertical water pipe is provided with a plurality of second connectors.

Preferably, the thin short pipes are communicated with a third pressure reducing valve.

Preferably, the upward conveying assembly is arranged at a water outlet at the top end of the water outlet pipe of the water pump, and a water inlet of the booster pump is fixedly connected with a water outlet at the top end of the water outlet pipe of the water pump.

Preferably, the second interface and the first interface are both located on the same vertical plane, except for the second interface located at the topmost end, and the other second interfaces are fixedly provided with second pressure reducing valves.

Preferably, the spraying devices are all located on the same vertical plane, the first pressure reducing valve is fixedly connected with the first thick pipe at the lowermost end through threads, the first thick pipe at the lowermost end is fixedly connected with the second interface at the uppermost end through threads, and the rest first thick pipes are fixedly connected with the second interface through threads.

Preferably, a water inlet pipe of the water pump is fixedly installed at a water inlet of the water pump.

Compared with the prior art, the invention has the beneficial effects that:

the invention utilizes the spray header to spray vertically upwards, which adds the liquid upwards process compared with the traditional direct downward spraying, thus increasing the reaction time of the spraying liquid and leading the exhausted gas to be cleaner.

2 the invention can continuously provide liquid reacting with the flue gas for a plurality of spraying devices in the oxidation tower through one water pump, thereby reducing the use of the water pump and a connecting pipe and greatly saving resources.

3 the invention can keep the liquid pressure in the first thick pipes basically consistent and has enough water pressure for spraying of a plurality of spraying devices through the first reducing valve, a plurality of second reducing valves and the booster pump.

4 the invention can spray liquid in each spray layer of the oxidation tower evenly through a plurality of spray devices, the spray pipes are thick at two ends and thin in the middle, thus when the liquid flows through the thinner part of the spray pipes, the pressure intensity is increased, the liquid is sprayed out by diffusing outwards along the shape of expanding outwards above the spray pipes, the ball at the outlet of the spray pipes limits the sprayed liquid in one spraying direction, thus more liquid can be sprayed in the direction of oblique upper part, thereby the area of the liquid sprayed by the spray heads is enlarged, the sprayed liquid can be collided with the upper packing layer and then scattered on the lower packing layer, when the numerous liquid particles fall down again, the liquid just sprayed below can be further collided, and the liquid is dispersed again, thereby the sprayed liquid can be scattered on the lower packing layer evenly.

Drawings

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

FIG. 2 is a schematic view of the water pumping assembly of the present invention;

FIG. 3 is a schematic view of the upward transport assembly of the present invention;

FIG. 4 is a schematic view of the spraying device of the present invention;

FIG. 5 is a schematic view of a showerhead structure according to the present invention;

FIG. 6 is a cutaway view of the showerhead of the present invention;

FIG. 7 is a schematic view of the impact dispersion device of the present invention.

In the figure:

1. a water pumping assembly; 11. a water pump; 12. a water inlet pipe of a water pump; 13. a water outlet pipe of the water pump; 14. a first interface;

2. an upward transport assembly; 21. a vertical water delivery pipe; 22. a second interface; 23. a booster pump;

3. a first pressure reducing valve;

4. a spraying device; 41. a first wide tube; 42. a thin short pipe; 43. an elongated tube; 44. a shower head; 441. a spray pipe; 442. an impact dispersion device; 4421. a threaded ring; 4422. a connecting rod; 4423. a support bar; 4424. a ball; 443. a first thread; 444. a second thread; 45. a third pressure reducing valve;

5. a second pressure reducing valve.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Referring to fig. 1-7, the present invention provides a technical solution:

a multilayer countercurrent sprayer of an oxidation tower comprises a water pumping assembly 1, wherein the water pumping assembly 1 comprises a water pump 11, a water inlet of the water pump 11 is fixedly provided with a water pump inlet pipe 12, a water outlet of the water pump 11 is fixedly arranged on a water pump outlet pipe 13, the water pump outlet pipe 13 is integrally L-shaped, the left side of the water pump outlet pipe 13 is fixedly connected with a first interface 14, the type of the water pump 11 is 0.75-250kw, the water pump 11 is connected with a power line with a plug, the plug is inserted into a socket with a power supply, the water pump 11 can normally work, when the water pump 11 is electrified and switched, liquid for spraying can be extracted through the water pump inlet pipe 12, liquid can be continuously conveyed to the first interface 14 and a water outlet at the top end of the water pump outlet pipe 13 through the water pump outlet pipe 13, the water pump 11 can continuously provide liquid which reacts with smoke for a plurality of spraying devices 4 in the oxidation tower, the use of the water pump and a connecting pipe is reduced, and resources are greatly saved.

It should be noted that the number of the spraying devices 4 corresponds to the number of the spraying layers in the oxidation tower, there are several spraying devices 4 in several spraying layers, the spraying devices 4 are located above the packing of the spraying layers, and the booster pump 23 is located between the two spraying layers below.

In this embodiment, the top outlet of the water pump outlet pipe 13 is provided with the upward conveying component 2, the upward conveying component 2 includes a booster pump 23, the water inlet of the booster pump 23 is fixedly connected with the top outlet of the water pump outlet pipe 13, the water outlet of the booster pump 23 is fixedly connected with a vertical conduit pipe 21, the left side of the vertical conduit pipe 21 is provided with a plurality of second interfaces 22, the second interfaces 22 and the first interface 14 are both located on the same vertical plane, the model of the booster pump 23 is RGB15-15, the booster pump 23 is connected with a power cord with a plug, the plug is inserted into a socket with a power supply, the booster pump 23 can normally work, the main purpose of the booster pump 23 is to boost the liquid flowing in from the water outlet on the top of the water pump outlet pipe 13, and continue to convey the liquid upwards through the vertical conduit pipe 21, and reach the second interface 22 in sequence.

In this embodiment, a first pressure reducing valve 3 is fixedly connected to a first connector 14, except for a topmost second connector 22, second pressure reducing valves 5 are fixedly installed on the other second connectors 22, the first pressure reducing valve 3, the second pressure reducing valve 5 and the topmost second connector 22 are respectively provided with a spraying device 4, the spraying devices 4 are all located on the same vertical plane, a bottommost first thick pipe 41 and the first pressure reducing valve 3 are fixedly connected in a threaded manner, a bottommost first thick pipe 41 and the topmost second connector 22 are fixedly connected in a threaded manner, the other first thick pipes 41 are fixedly connected in a threaded manner with the second connector 22, the types of the first pressure reducing valve 3, the second pressure reducing valves 5 and the third pressure reducing valves 45 are YZ11X-16P, the first pressure reducing valve 3, the second pressure reducing valves 5 and the third pressure reducing valves 45 are special devices for automatically reducing the pressure of the pipeline, the high water pressure in the pipeline before the valves can be reduced to the level required by the pipeline after the valves, the first pressure reducing valves 5, the second pressure reducing valves 5 and the third pressure reducing valves 45 are basically identical in the elongated pipes, the elongated pipes 14, the liquid pressure reducing valves can be reduced by the same size of the thin pipes 42, and the liquid flowing out of the thin pipes in the thin pipes 22, the thin pipes.

In this embodiment, the spraying device 4 comprises a first thick pipe 41, the ends of the first thick pipe 41 are both vertically bent upwards, and is positioned on the center line of the oxidation tower, the tail ends of the first thick pipes 41 are fixedly provided with a plurality of thin short pipes 42 and a plurality of thin pipes 43, the thin short pipes 42 and the thin pipes 43 are positioned on the same horizontal plane, the thin short pipes 42 and the slender pipes 43 are alternately arranged, third pressure reducing valves 45 are fixedly arranged on the thin short pipes 42, the thin short pipes 42 are communicated with the third pressure reducing valves 45, the tail ends of the thin short pipes 42 and the slender pipes 43 are vertically bent upwards, and a spray header 44 is fixedly arranged on the thread, a plurality of thin short pipes 42 are mainly used for spraying near the center line of the oxidation tower, a plurality of thin long pipes 43 are mainly used for spraying between the inner wall and the center line of the oxidation tower, the thin short pipes 42 and the thin long pipes 43 are thinner than the first thick pipes 41, because the liquid in the first thick pipe 41 is sprayed out by the thin short pipes 42 and the thin long pipes 43, the pressure of the liquid sprayed out by each of the thin short pipes 42 and the thin long pipes 43 is correspondingly reduced, and a thinner pipeline is adopted, so that the pressure of the liquid sprayed out of the thin short pipe 42 and the thin long pipe 43 can be ensured to be higher as much as possible, can be sprayed to the filler layer above, the sprayed liquid can be collided into countless liquid particles when contacting the filler layer above, then the liquid falls on the packing layer below, when numerous liquid particles fall again, the liquid particles can further collide with the liquid just sprayed below, so that they are dispersed again, and the thin short pipes 42 are all installed to cross the thin pipes 43, the liquid ejected from the thin short pipes 42 and the thin pipes 43 also collide, therefore, the sprayed liquid is relatively uniformly scattered on the packing layer below, and numerous liquid particles can generate collision reaction with particles in the smoke when falling again.

In the embodiment, the spray header 44 includes a spray pipe 441, an impact dispersion device 442 is fixedly installed in a thread in the spray pipe 441, the upper and lower ends of the spray pipe 441 are thick, the middle portion of the spray pipe 441 is thin, a first thread 443 and a second thread 444 are arranged at an interface at the inner part of the lower end of the spray pipe 441, the second thread 444 is arranged above the first thread 443, the impact dispersion device 442 includes a thread ring 4421, threads on the periphery of the thread ring 4421 and the second thread 444 correspond to each other, a connecting rod 4422 is fixedly connected to the inner side of the thread ring 4421, a supporting rod 4423 is installed on the connecting rod 4422, a ball 4424 is fixedly installed at the top end of the supporting rod 4423, the ball 4424 can penetrate through the inner part of the spray pipe 441, the spray pipe 441 is thick at two ends and thin at the middle portion, so that when liquid flows through the thin portion of the spray pipe 441, the pressure is increased, the liquid is diffused and sprayed out along the shape expanding outwards above the spray pipe 441, the spray head 4424 at the outlet of the spray pipe 441 is mainly limited in a spraying direction, so that more liquid can be sprayed in the oblique direction, the area of the spray header 44 is enlarged, the liquid is increased, the area of the ball 4422 and the ball 4424 is not uniform spraying of the main ball 4422 and the spray pipe 4424 is fixed on the spray header 4422 and the supporting rod 4422, and the spray pipe 4424.

In this embodiment, a water inlet of the water pump 11 is connected with a water inlet pipe 12 of the water pump, the water pump 11 is connected with a water outlet pipe 13 of the water pump, a vertical portion of the water outlet pipe 13 of the water pump is fixed on the outer wall of the oxidation tower, the first connector 14 and the second connectors 22 both penetrate through the oxidation tower, the spray devices 4 are installed inside the oxidation tower, the water outlet pipe 13 of the water pump and the vertical water pipe 21 are placed outside the oxidation tower, and mainly for facilitating later maintenance, the end of the water inlet pipe 12 of the water pump is inserted into the liquid for spraying, then the water pump 11 and the booster pump 23 are started, when the water pump 11 is powered on and rotated, the liquid for spraying can be extracted through the water inlet pipe 12 of the water pump, and the liquid is continuously conveyed to the water outlet at the first connector 14 and the top end of the water outlet pipe 13 of the water pump through the water outlet pipe 13 of the water pump, the first pressure reducing valve 3 leads the first connector 14 to the first thick pipe 41 at the lowest part for pressure reduction, the booster pump 23 boosts the liquid flowing in from the water outlet at the top end of the water outlet pipe 13 of the water pump, and continuously conveys the liquid upwards through the vertical water conveying pipe 21, and sequentially reaches the second connector 22, the pressure of the liquid flowing out from the first connector 14 and the second connectors 22 is reduced by the second pressure reducing valves 5, so that the pressure of the liquid flowing into the first thick pipe 41 is basically kept consistent, the liquid flowing into the first thick pipe 41 is sprayed out through the thin short pipes 42, the thin pipes 43 and the spray header 44, the spray direction of the spray header 44 is right above, compared with the traditional direct downward spraying, the upward process of the liquid is increased, so that the reaction time of the sprayed liquid can be increased, the gas discharged is cleaner, the thin short pipes 42 mainly spray near the center line of the oxidation tower, the thin pipes 43 mainly spray between the inner wall and the center line of the oxidation tower, the thin short pipes 42 and the thin long pipes 43 are thinner than the first thick pipe 41, because the liquid in the first thick pipe 41 is sprayed out by the thin short pipes 42 and the thin long pipes 43, the pressure of the liquid sprayed out by each thin short pipe 42 and each thin long pipe 43 is correspondingly reduced, a thinner pipeline is adopted, the pressure of the liquid sprayed out by the thin short pipes 42 and each thin long pipe 43 can be ensured to be higher as much as possible, the liquid can be sprayed to the packing layer above, the sprayed liquid can contact the packing layer above, and can be collided into countless liquid particles, then the countless liquid particles are scattered onto the packing layer below, when the countless liquid particles fall again, the liquid just sprayed out below can be further collided, so that the liquid is dispersed again, the thin short pipes 42 and the thin long pipes 43 are arranged in a crossed manner, the liquid sprayed out by the thin short pipes 42 and the thin long pipes 43 can also collide, so that the sprayed liquid is relatively uniformly scattered on the packing layer below, the two ends of the spraying pipes are thick, the middle ends of the spraying pipes are thin, the liquid can be increased when the liquid flows through the thin spraying pipes 441, the spraying pipe, the liquid is sprayed outwards, the spraying area of the spraying pipe 441 is relatively uniformly expanded, and the spraying area of the spraying pipe is more, so that the spraying area of the spraying pipe is enlarged, and the liquid is enlarged in the direction of the spraying area of the spraying pipe 4424.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an oxidation tower multilayer counter-current sprayer, includes a plurality of spray set (4) that are located each layer of oxidation tower, its characterized in that: spray set (4) are including first thick pipe (41), the equal fixed mounting in end of first thick pipe (41) has thin nozzle stub of a plurality of (42) and a plurality of elongated tube (43), equal fixed mounting third relief pressure valve (45) on thin nozzle stub (42), the equal vertical kickup in end of thin nozzle stub (42) and elongated tube (43), and screw thread fixed mounting has shower head (44), still including being used for providing water pumping assembly (1) and upwards transport module (2) of drawing water power for spray set (4), water pumping assembly (1) includes water pump (11), the delivery port department fixed mounting of water pump (11) is in water pump outlet pipe (13), upwards transport module (2) includes booster pump (23), the first interface (14) of left side fixedly connected with of water pump outlet pipe (13), first interface (14) locate fixedly connected with first relief pressure valve (3).

2. The multi-layer counter-current sprayer of an oxidation tower as claimed in claim 1, wherein: the tail ends of the first thick pipes (41) are vertically bent upwards and are positioned on the central line of the oxidation tower.

3. The multi-layer counter-current sprayer of the oxidation tower of claim 1, wherein: the thin short pipes (42) and the slender pipes (43) are all positioned on the same horizontal plane, and the thin short pipes (42) and the slender pipes (43) are alternately arranged.

4. The multi-layer counter-current sprayer of the oxidation tower of claim 1, wherein: the water outlet pipe (13) of the water pump is L-shaped as a whole.

5. The multi-layer counter-current sprayer of the oxidation tower of claim 1, wherein: the water outlet of the booster pump (23) is fixedly connected with a vertical water pipe (21), and the left side of the vertical water pipe (21) is provided with a plurality of second connectors (22).

6. The multi-layer counter-current sprayer of the oxidation tower of claim 1, wherein: the thin short pipes (42) are communicated with a third pressure reducing valve (45).

7. The multi-layer counter-current sprayer of the oxidation tower of claim 1, wherein: the upward conveying assembly (2) is arranged at a water outlet at the top end of the water pump water outlet pipe (13), and a water inlet of the booster pump (23) is fixedly connected with a water outlet at the top end of the water pump water outlet pipe (13).

8. The multi-layer counter-current sprayer of the oxidation tower of claim 5, wherein: the second connector (22) and the first connector (14) are located on the same vertical plane, except the second connector (22) located at the topmost end, and second reducing valves (5) are fixedly mounted on the rest second connectors (22).

9. The multi-layer counter-current sprayer of the oxidation tower of claim 1, wherein: the spraying devices (4) are all located on the same vertical plane, the first pressure reducing valve (3) is fixedly connected with the first thick pipe (41) at the lowest end in a threaded mode, the first thick pipe (41) at the lowest end is fixedly connected with the second connector (22) at the highest end in a threaded mode, and the rest first thick pipes (41) are fixedly connected with the second connector (22) in a threaded mode.

10. The multi-layer counter-current sprayer of an oxidation tower as claimed in claim 1, wherein: and a water inlet pipe (12) of the water pump is fixedly arranged at the water inlet of the water pump (11).