CN218741162U - Spray tower with back flush function - Google Patents
Spray tower with back flush function Download PDFInfo
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- CN218741162U CN218741162U CN202221123782.4U CN202221123782U CN218741162U CN 218741162 U CN218741162 U CN 218741162U CN 202221123782 U CN202221123782 U CN 202221123782U CN 218741162 U CN218741162 U CN 218741162U
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Abstract
The utility model discloses a spray column with back flush function, include: the device comprises a tower body, a spraying structure and a back flushing structure; the tower body is divided into four layers, and each layer is provided with an inspection hole; the first layer is provided with a defogging layer; the second layer is provided with a first spraying filler layer; the third layer is provided with a second spraying filler layer; the fourth layer is provided with an air inlet; a liquid outlet is arranged on one side of the lower part of the tower body; a water tank is arranged on the other side of the lower part of the tower body, and a water pump is arranged on the water tank; the water pump is connected with a spraying pipeline in the spraying structure and a back washing pipeline in the back washing structure. The spray tower is additionally provided with a back-flushing point, the filler is regularly back-flushed, particles attached to the surface of the filler can be timely flushed and fall to the bottom of the tower to be discharged, the filler and a water pump are prevented from being blocked, and the spray pretreatment efficiency is reduced; the slope design of tower bottom is provided with the inlet tube, reduces the silt gathering at the bottom of the tower, improves the availability factor, reduces the maintenance degree of difficulty.
Description
Technical Field
The utility model relates to a spray column art field, concretely relates to spray column with back flush function.
Background
The spray tower is a device for absorbing waste gas, and is also called a waste gas tower, an absorption tower, a purification tower and the like; the main function is to spray, wash, purify and absorb the industrial tail gas, waste gas and the harmful gas volatilized by the sewage. The working principle is that collected industrial waste gas is guided into a spray tower through a fan, two layers of spray devices and a filler device are generally arranged in the spray tower, gas is neutralized or absorbed through spraying absorption liquid, the absorption liquid is sprayed down at the top of the spray tower after being pressurized by a water pump at the bottom of the spray tower, and the absorption liquid flows back to the bottom of the spray tower for recycling until harmful gas is completely absorbed or is discharged after reaching standards;
when selecting the spray column as the water paint spraying, when the operating mode preliminary treatment that contains a large amount of dusts such as dust removal, in addition a large amount of dust granules in the waste gas, through the reverse mass transfer effect of spray column gas-liquid, a large amount of particulate matters can be washed the tower bottom, partial particulate matter can be attached to on packing, if the dust granule of tower bottom can not in time be discharged, can block up the water pump, reduce and spray the preliminary treatment efficiency, furthermore, it can be because of the particulate matter adheres to pack, the time is one long, pack and can be blockked up, the treatment effeciency descends, the treatment cost increases.
SUMMERY OF THE UTILITY MODEL
Problem to among the prior art, the utility model provides a spray column with back flush function, back flush point is add to this spray column, regularly carries out the back flush to packing, can in time wash the granule that packs the surface adhesion and fall into the tower bottom and get rid of, avoids blockking up filler, water pump, reduces and sprays pretreatment efficiency.
A spray tower with backwash function comprising: the device comprises a tower body, a spraying structure and a back washing structure; the tower body is divided into four layers, and each layer is provided with an inspection hole; the first layer is provided with a defogging layer; the second layer is provided with a first spraying filler layer; the third layer is provided with a second spraying filler layer; the fourth layer is provided with an air inlet; a liquid outlet is arranged on one side of the lower part of the tower body; the other side of the lower part of the tower body is provided with a water tank, and the tower body is communicated with the water tank through an overflow port; the water tank is provided with a water pump; the water pump is connected with a spraying pipeline in the spraying structure and a back washing pipeline in the back washing structure; the back flushing pipeline is provided with a plurality of horizontal branch pipes extending into the tower body, and upward spray heads are installed; the spraying pipeline is provided with a first spraying branch pipe and a second spraying branch pipe; the first spray branch pipe is positioned at the top of the second layer of the tower body, and the second spray branch pipe is positioned at the top of the third layer of the tower body and is respectively provided with a downward spray head.
Preferably, the backwashing pipeline is provided with three horizontal branch pipes extending into the tower body, namely a first backwashing branch pipe, a second backwashing branch pipe and a third backwashing branch pipe; the first backwashing branch pipe is positioned below the demisting layer, the second backwashing branch pipe is positioned below the first spraying packing layer, and the third backwashing branch pipe is positioned below the second spraying packing layer.
Preferably, the system also comprises a water inlet pipe positioned at the fourth layer of the tower body; the bottom of the tower body is set to be a slope, the water inlet pipe horizontally extends into the tower body, the water inlet pipe is positioned above the slope, and the water pipe is provided with a vertically downward spray head.
Preferably, a first valve is arranged on the water inlet pipe; a fourth valve is arranged on the third backwashing branch pipe; a second valve is arranged on the spray pipeline between the third backwashing branch pipe and the second backwashing branch pipe; and a third valve is arranged on the spraying pipeline.
Preferably, the system also comprises a control box, wherein the control box is provided with a touch screen, a PLC control system and a frequency converter; the PLC control system is connected with the water pump through a frequency converter; the first valve, the second valve, the third valve and the fourth valve are electromagnetic valves and are respectively connected with a PLC control system; the touch screen is connected with the PLC control system.
Preferably, the device also comprises a pressure gauge arranged at the outlet of the water pump, and the pressure gauge is connected with the PLC control system.
Compared with the prior art, the utility model, following beneficial effect has:
(1) The spray tower is additionally provided with a back washing point for periodically back washing the filler, so that particles attached to the surface of the filler can be timely washed and fall to the bottom of the tower for discharge, the filler and a water pump are prevented from being blocked, and the spray pretreatment efficiency is reduced.
(2) The slope at the bottom of the tower is provided with a water inlet pipe, particle aggregates on the slope at the bottom of the tower body are washed, are conveniently collected to a liquid outlet by means of gravity and the like and then are discharged, so that the accumulation of sludge at the bottom of the tower is reduced, the use efficiency is improved, and the maintenance difficulty is reduced;
(3) This spray column sprays structure, washes the structure and all passes through PLC system control, has guaranteed equipment continuous steady operation when having realized the automation.
Drawings
FIG. 1 is a structural view of a spray tower with a back-flushing function of the utility model;
FIG. 2 is a view of the internal structure of a spray tower with back-flushing function of the present invention;
FIG. 3 is a view of a connecting structure between a spray tower with a back washing function and a control box of the utility model;
FIG. 4 is an electrical connection diagram of a spray tower with a back-flushing function according to the present invention;
in the figure: the device comprises an inspection opening-1, a tower body-2, an air inlet-3, a water inlet pipe-4, a liquid outlet-5, a water tank-6, a water pump-7, a back flush pipeline-8, a pressure gauge-9, a spray pipeline-10, a demisting layer-11, a first spray branch pipe-12, a first back flush branch pipe-13, a first spray packing layer-14, a second spray branch pipe-15, a second back flush branch pipe-16, a second spray packing layer-17, a third back flush branch pipe-18, a slope-19, an overflow opening-20, a control box-21, a valve I-41, a valve II-81, a valve III-101, a valve IV 82, a touch screen-211, a PLC control system-212 and a frequency converter-213.
Detailed Description
Reference will now be made to figures 1-4 of the drawings in an embodiment of the present invention; the technical scheme in the embodiment of the utility model is clearly and completely described:
as shown in fig. 1 and 2, in an embodiment of the present invention, a spray tower with backwashing function includes: the device comprises a tower body 1, a spraying structure and a back flushing structure; the tower body 1 is divided into four layers, and each layer is provided with an inspection port 1 for observing the conditions in the tower, so that the maintenance is convenient; the first layer is provided with a defogging layer 11 for removing water vapor in the gas; the second layer is provided with a first spraying filler layer 14; the third layer is provided with a second spraying filler layer 17; the fourth layer is provided with an air inlet 3 for the waste gas to enter the tower; a liquid outlet 5 is arranged on one side of the lower part of the tower body 1 and is used for discharging impurities and absorbing liquid after waste gas; the other side of the lower part of the tower body 1 is provided with a water tank 6, the tower body 1 is communicated with the water tank 6 through an overflow port 20, so that absorption liquid gathered to the bottom of the tower enters the water tank 6 from the overflow port 20 after primary precipitation, and is pressurized and pumped into the tower through a water pump 7; a water pump 7 is arranged on the water tank 6; the water pump 7 is connected with a spraying pipeline 10 in the spraying structure and a back flushing pipeline 8 in the back flushing structure; the back flushing pipeline 8 is provided with a plurality of horizontal branch pipes extending into the tower body 1, upward spray heads are arranged to spray the bottoms of the demisting layer 11 and the filling layer for removing particles attached to the bottoms of the demisting layer and the filling layer; the spraying pipeline 10 is provided with a first spraying branch pipe 12 and a second spraying branch pipe 15; the first spray branch pipe 12 is positioned at the top of the second layer of the tower body 1, the second spray branch pipe 15 is positioned at the top of the third layer of the tower body 1, and downward spray heads are respectively installed on the first spray packing layer 14 and the second spray packing layer 17 for spraying and absorbing waste gas.
Specifically, the backwash pipeline 8 is provided with three horizontal branch pipes extending into the tower body 1, namely a first backwash branch pipe 13, a second backwash branch pipe 16 and a third backwash branch pipe 18; the first back-washing branch pipe 13 is positioned below the demisting layer 11, the second back-washing branch pipe 16 is positioned below the first spray packing layer 14, and the third back-washing branch pipe 18 is positioned below the second spray packing layer 17. The bottom of the demisting layer 11 and the bottom of the filling layer are sprayed for removing the particles attached to the bottom of the demisting layer.
Specifically, the tower further comprises a water inlet pipe 4 positioned on the fourth layer of the tower body 1; the bottom of the tower body 1 is provided with a slope 19, the water inlet pipe 4 horizontally extends into the tower body 1, the water inlet pipe 4 is positioned above the slope 19, and the water pipe 4 is provided with a vertically downward spray head; during operation, inlet tube 4 connects the running water, and inlet tube 4 water spray washes the granule aggregate on tower body 1 bottom slope 19, relies on gravity etc. to be convenient for collect discharge outlet 5 back discharge, reduces the silt aggregate at the bottom of the tower, improves the availability factor.
Specifically, a first valve 41 is arranged on the water inlet pipe 4; a fourth valve 82 is arranged on the third back washing branch pipe 18; a second valve 81 is arranged on the spray pipeline 10 and between the third back washing branch pipe 18 and the second back washing branch pipe 16; a third valve 101 is arranged on the spraying pipeline 10; the device is used for controlling water inflow and realizing regular flushing according to requirements.
As shown in fig. 3 and 4, in a specific embodiment of the present invention, the present invention further comprises a control box 21, the control box is provided with a touch screen 211, a PLC control system 212, and a frequency converter 213; the PLC control system 212 is connected with the water pump 7 through a frequency converter 213; the first valve 41, the second valve 81, the third valve 101 and the fourth valve 82 adopt electromagnetic valves and are respectively connected with a PLC control system 212; the touch screen 211 is connected with the PLC control system 212; each valve can be manually controlled through the touch screen 211, backwashing or spraying operation can be carried out according to requirements, and the size of spraying can be controlled by adjusting the water pump 7.
Specifically, the system also comprises a pressure gauge 9 arranged at the outlet of the water pump 7, and the pressure gauge 9 is connected with the PLC control system 212; the water pressure in the pipeline is collected through a pressure gauge 9, when the water pressure is too low or too high during spraying and washing operation, the water outlet of the water pump 7 can be adjusted at any time; and the stable operation of the equipment is ensured.
The working principle is that the existing absorption tower is the same in the waste gas spraying and absorbing process, and the difference is that the working mode of the spraying tower can be set to be manual control or automatic control through the touch screen 211 and the PLC control system 212; during manual control, each valve is controlled to carry out spraying or washing operation according to requirements;
during automatic control, the pressure value of the pipeline and the interval time of backwashing operation and tower bottom flushing operation can be preset; generally, the PLC control system 212 controls the valve three 101 to be opened, and the other valves to be closed; when the time of the backwashing operation is up, the PLC control system 212 controls the valve III 101 to be closed (the backwashing water spraying effect is prevented from being influenced), and the valve II 81 and the valve IV 82 are opened; after the back washing is finished, closing the second valve 81, opening the third valve 101 to continue spraying, wherein the fourth valve 82 is positioned below the second spraying packing layer 17 without the obstruction of a spraying pipe, and the second spraying packing layer 17 is in more dust contact and can be closed in a delayed manner; in the process, the system collects the water outlet pressure of the pipeline in real time through the pressure gauge 9, and when the water pressure changes, the water quantity of the water pump 7 is controlled to reach a preset pressure value in time, so that the system stably operates; when the time of the tower bottom washing operation is reached, a first valve 41 is opened, and the valve is controlled to be closed after the washing is finished.
The above description is only the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be covered by the present invention in the technical scope of the present invention, and the technical solution and the modified concept of the present invention should be replaced or changed equally.
Claims (6)
1. The utility model provides a spray column with back flush function which characterized in that: the method comprises the following steps: the device comprises a tower body, a spraying structure and a back washing structure; the tower body is divided into four layers, and each layer is provided with an inspection hole; the first layer is provided with a defogging layer; the second layer is provided with a first spraying filler layer; the third layer is provided with a second spraying filler layer; the fourth layer is provided with an air inlet; a liquid outlet is arranged on one side of the lower part of the tower body; the other side of the lower part of the tower body is provided with a water tank, and the tower body is communicated with the water tank through an overflow port; the water tank is provided with a water pump; the water pump is connected with a spraying pipeline in the spraying structure and a back washing pipeline in the back washing structure; the back flushing pipeline is provided with a plurality of horizontal branch pipes extending into the tower body, and upward spray heads are arranged; the spraying pipeline is provided with a first spraying branch pipe and a second spraying branch pipe; the first spray branch pipe is positioned at the top of the second layer of the tower body, and the second spray branch pipe is positioned at the top of the third layer of the tower body and is respectively provided with a downward spray head.
2. The spray tower with backwashing function according to claim 1, wherein: the backwashing pipeline is provided with three horizontal branch pipes extending into the tower body, namely a first backwashing branch pipe, a second backwashing branch pipe and a third backwashing branch pipe; the first backwashing branch pipe is positioned below the demisting layer, the second backwashing branch pipe is positioned below the first spraying packing layer, and the third backwashing branch pipe is positioned below the second spraying packing layer.
3. The spray tower with backwashing function according to claim 1, wherein: the tower body is provided with a water inlet pipe at the fourth layer; the bottom of the tower body is set to be a slope, the water inlet pipe horizontally extends into the tower body, the water inlet pipe is positioned above the slope, and the water pipe is provided with a vertically downward spray head.
4. The spray tower with the back flushing function as claimed in claim 3, wherein: a first valve is arranged on the water inlet pipe; a fourth valve is arranged on the third backwashing branch pipe; a second valve is arranged between the third back washing branch pipe and the second back washing branch pipe on the spray pipeline; and a third valve is arranged on the spray pipeline.
5. The spray tower with the back flushing function as claimed in claim 4, wherein: the control box is provided with a touch screen, a PLC control system and a frequency converter; the PLC control system is connected with the water pump through a frequency converter; the first valve, the second valve, the third valve and the fourth valve are electromagnetic valves and are respectively connected with a PLC control system; the touch screen is connected with the PLC control system.
6. The spray tower with the back flushing function according to claim 5, characterized in that: the water pump is characterized by further comprising a pressure gauge arranged at the outlet of the water pump, and the pressure gauge is connected with the PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221123782.4U CN218741162U (en) | 2022-05-11 | 2022-05-11 | Spray tower with back flush function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221123782.4U CN218741162U (en) | 2022-05-11 | 2022-05-11 | Spray tower with back flush function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218741162U true CN218741162U (en) | 2023-03-28 |
Family
ID=85644083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221123782.4U Active CN218741162U (en) | 2022-05-11 | 2022-05-11 | Spray tower with back flush function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218741162U (en) |
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2022
- 2022-05-11 CN CN202221123782.4U patent/CN218741162U/en active Active
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