Spray tower

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a spray tower which comprises a shell, a spray structure and a liquid inlet pipe, one end of the spraying structure is connected with the liquid inlet pipe, and the other end of the spraying structure is arranged in the shell; the spraying structure comprises a main pipe, an auxiliary pipe and a spraying head; the auxiliary pipe is arranged from one end to the other end; the spraying heads are arranged from one end to the other end of the main pipe; and the spray header is arranged from one end to the other end of the auxiliary pipe. Some spray nozzles are small in spray range, and some positions cannot spray water, so that part of gas is in contact with less absorption liquid, and waste gas cannot be treated. Compared with the prior art, the spray tower disclosed by the utility model is provided with the main pipe and the plurality of auxiliary pipes, and the plurality of spray heads are arranged on the main pipe and the auxiliary pipes, so that absorption liquid can be sprayed to each position in the spray tower through the spray heads when entering the spray heads, and a certain plane of the spray tower can be covered by the spray liquid; and the situation that some waste gas cannot be completely absorbed due to less contact of spraying liquid caused by uneven spraying is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a spray tower. Background Art

[0002] Spray towers, also known as scrubbers or water scrubbers, are crucial equipment for environmentally friendly waste gas treatment. They are widely used in industrial waste gas treatment, sewage treatment, air humidification, firefighting, and certain industrial production processes. When waste gas enters the spray tower through its inlet, it is surrounded by absorbent droplets sprayed by the spray system. These absorbent droplets effectively absorb harmful substances in the waste gas and convert them into harmless substances.

[0003] There are usually spray nozzles in the spray tower to spray absorption liquid to absorb harmful substances in the exhaust gas. Some spray nozzles have a small spray range and some positions cannot be sprayed. Some gases are exposed to less absorption liquid when passing through these positions, resulting in the exhaust gas cannot be treated, making the exhaust gas discharged from the spray tower substandard. Utility Model Content

[0004] In view of the technical problems of the prior art, the utility model provides a spray tower.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A spray tower includes: a shell, a spray structure, and a liquid inlet pipe; one end of the spray structure is connected to the liquid inlet pipe, and the other end is arranged in the shell; the spray structure includes: a main pipe, a secondary pipe, and a spray head; the secondary pipe is arranged from one end of the main pipe to the other end; the spray head is arranged from one end of the main pipe to the other end; and the spray head is arranged from one end of the secondary pipe to the other end.

[0007] Furthermore, one end of the main pipe is connected to the liquid inlet pipe, and the other end extends into the shell; the main pipe is inclined toward the other side along the side close to the liquid inlet pipe; the auxiliary pipes are relatively arranged on both sides of the main pipe; the auxiliary pipes are inclined toward the other side along the side close to the main pipe.

[0008] Furthermore, the shower head includes: a connecting pipe and a shower head; the shower head is arranged on a side of the connecting pipe close to the ground.

[0009] Furthermore, it also includes: a packing layer; the packing layer is arranged on the side of the spray structure close to the ground; the packing layer includes a plurality of porous hollow balls.

[0010] Furthermore, it also includes: a bottom plate and a drainage pipe; the bottom plate is arranged at the bottom end of the shell; the bottom plate is inclined from one side to the other side; and the drainage pipe is arranged at the lower end of the bottom plate.

[0011] Furthermore, it also includes: a reflux device; the reflux device includes: an absorption pipe, a reflux pipe, and a reflux pump; the absorption pipe is connected to the reflux pump; the absorption pipe is connected to the drain pipe; one end of the reflux pipe is connected to the absorption pipe, and the other end is connected to the liquid inlet pipe; the reflux pipe is inclined from the side close to the reflux pipe to the side close to the liquid inlet pipe.

[0012] Furthermore, it also includes: an air inlet pipe; the air inlet pipe is arranged on the side of the base plate close to the ground; one end of the air inlet pipe extends into the shell; the side of the air inlet pipe extending into the shell is inclined toward the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 : A schematic structural diagram of the utility model;

[0014] Figure 2 : A cross-sectional view of part of the structure of the utility model;

[0015] Figure 3 : Schematic diagram of the spray structure.

[0016] In the figure: 1. Shell; 2. Spray structure; 21. Main pipe; 22. Auxiliary pipe; 23. Spray head; 231. Connecting pipe; 232. Shower head; 3. Liquid inlet pipe; 4. Filling layer; 5. Bottom plate; 6. Drain pipe; 7. Reflux device; 71. Absorption pipe; 72. Reflux pipe; 73. Reflux pump; 8. Air inlet pipe; 9. Air outlet. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] according to Figure 1-3 The utility model provides a spray tower, comprising: a shell 1, a spray structure 2, a liquid inlet pipe 3, a packing layer 4, a bottom plate 5, a drain pipe 6, a reflux device 7, an air inlet pipe 8, and an air outlet 9.

[0019] One end of the spray structure 2 is connected to the liquid inlet pipe 3, and the other end is disposed within the housing 1. The spray structure 2 includes a main pipe 21, a secondary pipe 22, and a spray head 23. The secondary pipe 22 extends from one end of the main pipe 21 to the other end. The spray head 23 extends from one end of the main pipe 21 to the other end. The spray head 23 extends from one end of the secondary pipe 22 to the other end.

[0020] When spraying is required, absorption liquid is introduced into the liquid inlet pipe 3, and the absorption liquid will enter the spray structure 2 along the liquid inlet pipe 3, that is, enter the main pipe 21 and the auxiliary pipe 22, and then enter each spray head 23. By arranging a plurality of auxiliary pipes 22 on the main pipe 21, and then arranging a plurality of spray heads 23 on the main pipe 21 and the auxiliary pipe 22, the spray heads are distributed at multiple positions within the same plane in the shell 1. When spraying is performed through the spray heads 23 at multiple positions, the sprayed absorption liquid can cover various positions within a certain plane in the shell, so that the exhaust gas will definitely come into contact with the absorption liquid when moving in the shell 1, so as to ensure that all exhaust gas can come into contact with the absorption liquid and avoid the discharged exhaust gas from not meeting the standards.

[0021] One end of the main pipe 21 is connected to the liquid inlet pipe 3, and the other end extends into the housing 1. The main pipe 21 is inclined toward the other side along the side closest to the liquid inlet pipe 3. Auxiliary pipes 22 are arranged on either side of the main pipe 21. The auxiliary pipes 22 are inclined toward the other side along the side closest to the main pipe 21. The shower head 23 includes a connecting pipe 231 and a shower head 232. The shower head 232 is located on the side of the connecting pipe 231 closest to the ground.

[0022] The absorption liquid first enters the liquid inlet pipe 3, then enters the main pipe 21, and then enters the auxiliary pipe 22 and the spray head 23 respectively. When the absorption liquid flows, it will first enter the spray head 23 close to the liquid inlet pipe 3, and then enter the spray head 23 far away from the liquid inlet pipe 3. When the liquid is continuously inhaled subsequently, the water pressure of the spray head 23 close to the liquid inlet pipe 3 will be greater, resulting in a larger flow rate, while the flow rate of the subsequent spray heads 23 will be smaller, resulting in uneven spraying of liquid at different places, which will cause uneven absorption of exhaust gas at various places, and easily cause waste or incomplete absorption. The utility model makes the main pipe 21 tilted along the side close to the liquid inlet pipe 3 to the other side, and the auxiliary pipe 22 tilted along the side close to the main pipe 21 to the other side. When the absorption liquid flows, due to the influence of gravity, the amount of absorption liquid flowing to the spray head 23 far away from the liquid inlet pipe 3 is greater, thereby increasing the flow rate of the corresponding spray head 23, so that the flow rate of the absorption liquid sprayed from various places is close, thereby avoiding uneven absorption of exhaust gas. When the absorption liquid enters the shower head 23, it first passes through the connecting pipe 231 and then is discharged through the shower head 232. The absorption liquid can be further diffused to the surroundings when it is sprayed, so as to cover more positions and facilitate exhaust gas absorption.

[0023] A packing layer 4 is disposed on the ground side of the spray structure 2. The packing layer 4 comprises a plurality of porous hollow balls. A bottom plate 5 is disposed at the bottom end of the housing 1. The bottom plate 5 is inclined from one side to the other. A drain pipe 6 is disposed at the lower end of the bottom plate 5.

[0024] The utility model is provided with a packing layer 4 on the side of the spray structure 2 close to the ground. The packing layer 4 includes a plurality of porous hollow balls. When the exhaust gas enters the absorption tower, it often enters through a pipe, so that the exhaust gas is mainly concentrated in a smaller range when entering. When the exhaust gas flows to the air outlet 9, it is often concentrated in a range, so that the gas flow in some areas is too large and the treatment effect is poor. Through the above-mentioned hollow balls, when the exhaust gas flows to the packing layer 4, it will be dispersed to various gaps through the porous hollow balls. When it leaves the hollow balls, these air flows can be more evenly distributed to various positions to prevent the local gas flow from being too large. In addition, because the packing layer is arranged on the side of the spray structure 2 close to the ground, the sprayed absorption liquid will enter the packing layer 4. When the exhaust gas flows in the packing layer 4, the contact area between the exhaust gas and the absorption liquid is large, and the exhaust gas will fully contact the absorption liquid, thereby enhancing the treatment effect of the exhaust gas. When the absorption liquid falls from the packing layer 4, it will fall onto the bottom plate 5. After the exhaust gas is absorbed, the absorption liquid on the bottom plate 5 absorbs the exhaust gas and may produce harmful by-products that need to be recovered or treated. The utility model tilts the bottom plate 5 from one side to the other, and the drain pipe 6 is set at the lower end of the bottom plate 5, so that the liquid can naturally flow to the drain pipe 6 with gravity, which is convenient for the discharge of the waste liquid.

[0025] The reflux device 7 includes: an absorption pipe 71, a return pipe 72, and a return pump 73. The absorption pipe 71 is connected to the return pump 73. The absorption pipe 71 is connected to the drain pipe 6. One end of the return pipe 72 is connected to the absorption pipe 71, and the other end is connected to the liquid inlet pipe 3. The return pipe 72 is inclined toward the liquid inlet pipe 3 along the side close to the return pipe 72. The drain pipe 6 is provided with valves on the side close to the shell 1 and the side away from the shell 1. The air inlet pipe 8 is arranged on the side of the base plate 5 close to the ground. One end of the air inlet pipe 8 extends into the shell 1. The side of the air inlet pipe 8 extending into the shell 1 is inclined toward the base plate 5.

[0026] The absorption liquid can often be recycled. If it is discharged directly, the amount of absorption liquid used will increase, resulting in waste. When recycling is needed, the valve (hereinafter referred to as valve A) is opened on the side of the drain pipe 6 away from the shell 1, and the valve (hereinafter referred to as valve B) on the side of the drain pipe 6 close to the shell 1 is closed. Then the reflux pump 73 is started, so that the liquid on the bottom plate 5 will first enter the drain pipe 6, then enter the absorption pipe 71, and then enter the liquid inlet pipe 3 through the reflux pipe 72, and finally enter the spray structure 2 for spraying, thereby completing the cycle and making full use of the absorption liquid. When the absorption liquid just starts to enter the spray structure 2, it does not need to be refluxed. At this time, the reflux pump 73 should be turned off. The reflux pipe 72 of the utility model is tilted along the side close to the reflux pipe 72 to the side close to the liquid inlet pipe 3, so that when the absorption liquid is passed into the liquid inlet pipe 3, it will not enter the reflux pipe 72, thereby avoiding a part of the absorption liquid being wasted. The air inlet pipe 8 extends into one side of the shell 1 and is inclined toward the bottom plate 5, so that when the exhaust gas enters the spray tower, it will move a certain distance toward the bottom plate 5, and a portion of the absorption liquid can be introduced through the liquid inlet pipe 3. The valve A is closed, so that the absorption liquid falls on the bottom plate 5 and a portion of it is stored. In this way, the exhaust gas will first enter the liquid at the bottom plate 5 to complete the initial absorption, thereby improving the absorption efficiency of the exhaust gas.

[0027] The working principle and use process of this utility model:

[0028] When the present invention is in use, first close valve A and valve B, then open the liquid inlet pipe 3, so that the absorption liquid enters the main pipe 21 through the liquid inlet pipe, and then enters the auxiliary pipe 22 and the spray head 23 through the main pipe 21. The hand washing liquid in the auxiliary pipe 22 also flows to the spray head 23. The liquid entering the spray head 23 will be sprayed out through the shower head 232, and then fall on the hollow balls in the packing layer 4, and continue to flow to the bottom plate 5 at the hollow balls, and then fall on the bottom plate 5, and pass the exhaust gas into the air inlet pipe 8, so that the exhaust gas enters the interior of the shell 1. The exhaust gas will rise in the shell 1 and then enter the packing layer 4. The exhaust gas is dispersed to various places in the packing layer 4 through the packing layer 4, and is fully in contact with the absorption liquid in the packing layer 4, so that the harmful substances in the exhaust gas are absorbed. When the exhaust gas leaves the packing layer 4, it will be further absorbed by the absorption liquid directly sprayed by the spray head 23, and then the exhaust gas will be discharged through the air outlet 9 for discharge or entering the next treatment process. When the absorption liquid needs to be refluxed, valve A is opened, valve B is kept closed, and the reflux pump is started, causing the absorption liquid on the bottom plate 5 to flow to the drain pipe 6, then into the absorption pipe 71, then into the liquid inlet pipe 3 through the reflux pipe, and finally sprayed out through the spray head 23, completing the cycle. When the hand soap needs to be discharged, the liquid inlet pipe 3 and reflux pump 73 are closed, and valves A and B are opened to allow the absorption liquid to be discharged from the drain pipe 6.

[0029] To sum up, the utility model provides a main pipe and several auxiliary pipes, and provides several spray heads on the main pipe and the auxiliary pipes, so that when the absorption liquid enters the spray head, it can be sprayed to various positions in the spray tower through the spray head, so that a certain plane of the spray tower can be covered by the spray liquid, avoiding uneven spraying that causes some exhaust gas to have less contact with the spray liquid and cannot be completely absorbed.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A spray tower, characterized in that: include: Shell (1), spray structure (2), liquid inlet pipe (3); One end of the spray structure (2) is connected to the liquid inlet pipe (3), and the other end is arranged in the housing (1); The spray structure (2) comprises: a main pipe (21), a secondary pipe (22), and a spray head (23); The auxiliary pipe (22) is arranged along one end of the main pipe (21) to the other end; The spray head (23) is arranged along one end of the main pipe (21) to the other end; The spray head (23) is arranged along one end of the auxiliary pipe (22) to the other end.

2. A spray tower according to claim 1, characterized in that: One end of the main pipe (21) is connected to the liquid inlet pipe (3), and the other end extends into the housing (1); The main pipe (21) is inclined from one side close to the liquid inlet pipe (3) to the other side; The auxiliary pipes (22) are arranged on both sides of the main pipe (21); The secondary pipe (22) is inclined from one side close to the primary pipe (21) to the other side.

3. A spray tower according to claim 1, characterized in that: The shower head (23) comprises: a connecting pipe (231) and a shower head (232); The shower head (232) is arranged on a side of the connecting pipe (231) close to the ground.

4. A spray tower according to claim 1, characterized in that: It also includes: a filler layer (4); The filler layer (4) is arranged on the side of the spray structure (2) close to the ground; The packing layer (4) comprises a plurality of porous hollow balls.

5. A spray tower according to claim 1, characterized in that: It also includes: a bottom plate (5), a drainage pipe (6); The bottom plate (5) is arranged at the bottom end of the housing (1); The bottom plate (5) is inclined from one side to the other side; The drainage pipe (6) is arranged at the lower end of the bottom plate (5).

6. A spray tower according to claim 5, characterized in that: It also includes: a reflux device (7); The reflux device (7) comprises: an absorption pipe (71), a reflux pipe (72), and a reflux pump (73); The absorption pipe (71) is connected to the reflux pump (73); The absorption pipe (71) is connected to the drainage pipe (6); One end of the reflux pipe (72) is connected to the absorption pipe (71), and the other end is connected to the liquid inlet pipe (3); The return pipe (72) is inclined from a side close to the return pipe (72) to a side close to the liquid inlet pipe (3).

7. A spray tower according to claim 5, characterized in that: It also includes: an air inlet pipe (8); The air inlet pipe (8) is arranged on a side of the bottom plate (5) close to the ground; One end of the air inlet pipe (8) extends into the housing (1); The air inlet pipe (8) extends into one side of the housing (1) and is inclined toward the bottom plate (5).

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