Equipment for treating high-concentration VOCS desorption tail gas by utilizing absorption method

Abstract

The utility model discloses equipment for treating high-concentration VOCS desorption tail gas by utilizing an absorption method, which belongs to the technical field of VOCS treatment and comprises a spray tower and a circulating water tank, the circulating water tank is arranged on one side of the bottom of the spray tower and fixedly connected with the spray tower, a water pipe is arranged on one side of the circulating water tank and extends into the spray tower, and the spray tower is fixedly connected with the circulating water tank. A first sprayer is arranged on one side of the water pipe, a circulating water pump is arranged on one side of the water pipe, a liquid level probe is arranged in the circulating water tank and fixedly connected with the circulating water tank, a liquid adding pipe is arranged on one side of the circulating water tank, an electromagnetic valve is arranged on one side of the liquid adding pipe, and a medicine adding tank is arranged at one end of the liquid adding pipe. By arranging the circulating water tank, the water pipe, the first sprayer, the circulating water pump, the liquid level probe, the liquid adding pipe, the electromagnetic valve and the medicine adding tank, automatic adjustment of absorption liquid is achieved, when the liquid level probe detects that the absorption liquid needs to be added, the electromagnetic valve can be automatically opened, and the absorption liquid in the medicine adding tank can enter the circulating water tank.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the VOCs processing technical field, specifically relates to a kind of equipment for treating high concentration VOCs desorption tail gas using absorption method. BACKGROUND

[0002] Absorption method control VOCs belongs to wet process, it is a method using absorption liquid to absorb VOCs from airflow, commonly used to treat humidity greater than 50% VOCs airflow.Absorption method is most suitable for treating the organic waste gas with concentration range of 1000~10000mg / m3, and the treatment efficiency of some VOCs can reach 95%~98%.Absorption method usually uses packing tower or spray tower to absorb, and the absorption effect mainly depends on the structural features of equipment and the absorption performance of absorbent.

[0003] The existing absorption method for treating high concentration VOCs desorption tail gas equipment still has some defects, most of which do not have the function of automatic dosing, and the absorption liquid needs to be manually added by the staff during the treatment of VOCs, which is more troublesome, so we propose a kind of equipment for treating high concentration VOCs desorption tail gas using absorption method. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of equipment for treating high concentration VOCs desorption tail gas using absorption method to solve the problem of most of not having the function of automatic dosing in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of equipment for treating high concentration VOCs desorption tail gas using absorption method, including spray tower and circulating water tank, the bottom side of the spray tower is equipped with circulating water tank, the circulating water tank and spray tower are fixedly connected, one side of the circulating water tank is equipped with water pipe, the water pipe extends to the inside of spray tower, one side of the water pipe is equipped with first spray, one side of the water pipe is equipped with circulating water pump, the inside of the circulating water tank is equipped with liquid level probe, the liquid level probe and circulating water tank are fixedly connected, one side of the circulating water tank is equipped with liquid addition pipe, one side of the liquid addition pipe is equipped with electromagnetic valve, one end of the liquid addition pipe is equipped with dosing tank.

[0006] Preferably, the inside of the spray tower is equipped with filter screen, the filter screen and spray tower are fixedly connected, and the inside of the spray tower is equipped with first packing layer.

[0007] Preferably, one side of the water pipe is equipped with branch pipe, the branch pipe extends to the inside of spray tower, one side of the branch pipe is equipped with second spray.

[0008] Preferably, the inside of the spray tower is equipped with second packing layer, one side of the spray tower is equipped with air inlet pipe, one side of the air inlet pipe is equipped with valve.

[0009] Preferably, the top of the spray tower is provided with an exhaust pipe, and the middle of the exhaust pipe is provided with a fan.

[0010] Preferably, a plurality of the first spray and the second spray are arranged, and the electromagnetic valve and the liquid level probe are electrically connected.

[0011] Compared with the prior art, the beneficial effects of the present application are:

[0012] 1. The circulating water tank, water pipe, first spray, circulating water pump, liquid level probe, liquid adding pipe, electromagnetic valve and dosing tank are arranged, so that the absorption liquid is automatically adjusted, and when the liquid level probe detects that the absorption liquid needs to be added, the electromagnetic valve is automatically opened, and the absorption liquid in the dosing tank enters the inside of the circulating water tank.

[0013] 2. The filter screen is arranged to filter the absorption liquid, so that the absorption liquid is reused, the first filler layer and the second filler layer are arranged to absorb VOCs, the treatment effect is better, and the branch pipe and the second spray are arranged to absorb the VOCs again. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a schematic diagram of the overall structure of the present application;

[0015] Fig. 2 It is a schematic diagram of the plane structure of the present application;

[0016] Fig. 3 It is a schematic diagram of the side structure of the present application.

[0017] In the figure: 1, spray tower; 2, circulating water tank; 3, water pipe; 4, first spray; 5, circulating water pump; 6, liquid level probe; 7, liquid adding pipe; 8, electromagnetic valve; 9, dosing tank; 10, filter screen; 11, first filler layer; 12, branch pipe; 13, second spray; 14, second filler layer; 15, air inlet pipe; 16, exhaust pipe; 17, fan. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Please refer to Figs. 1-3The utility model provides a technical scheme: a device for treating high concentration VOCS desorption tail gas by using absorption method, including spray tower 1 and circulating water tank 2, one side of the bottom of spray tower 1 is equipped with circulating water tank 2, and circulating water tank 2 and spray tower 1 are fixedly connected, one side of circulating water tank 2 is equipped with water pipe 3, water pipe 3 extends to the inside of spray tower 1, one side of water pipe 3 is equipped with first spray 4, one side of water pipe 3 is equipped with circulating water pump 5, the inside of circulating water tank 2 is equipped with liquid level probe 6, liquid level probe 6 and circulating water tank 2 are fixedly connected, one side of circulating water tank 2 is equipped with liquid adding pipe 7, one side of liquid adding pipe 7 is equipped with electromagnetic valve 8, one end of liquid adding pipe 7 is equipped with dosing tank 9.

[0020] In the embodiment, when the device for treating high concentration VOCS desorption tail gas by using the absorption method is used, the circulating water pump 5 is started, the absorption liquid in the circulating water tank 2 is pumped out, enters the inside of the first spray 4 under the transportation of the water pipe 3, and is sprayed out by the first spray 4, so that the VOCS can be absorbed. The used absorption liquid falls into the bottom of the spray tower 1 and returns to the inside of the circulating water tank 2, so that the circulation use of the absorption liquid can be realized, the use cost is reduced, and the absorption liquid in the circulating water tank 2 can be detected by the liquid level probe 6. When it is detected that the absorption liquid needs to be added, the control center opens the electromagnetic valve 8, the absorption liquid in the dosing tank 9 enters the inside of the circulating water tank 2 through the liquid adding pipe 7, the automatic addition of the absorption liquid is realized, and the use is more convenient.

[0021] Specifically, the inside of the spray tower 1 is provided with a filter screen 10, the filter screen 10 and the spray tower 1 are fixedly connected, the inside of the spray tower 1 is provided with a first filler layer 11, one side of the water pipe 3 is provided with a branch pipe 12, the branch pipe 12 extends to the inside of the spray tower 1, one side of the branch pipe 12 is provided with a second spray 13, the inside of the spray tower 1 is provided with a second filler layer 14, one side of the spray tower 1 is provided with an air inlet pipe 15, one side of the air inlet pipe 15 is provided with a valve, the top of the spray tower 1 is provided with an exhaust pipe 16, the middle of the exhaust pipe 16 is provided with a fan 17, the first spray 4 and the second spray 13 are provided with a plurality of, and the electromagnetic valve 8 and the liquid level probe 6 are electrically connected.

[0022] In the embodiment, the absorption liquid can be filtered by the filter screen 10, so that the secondary use of the absorption liquid is realized. The VOCS can be absorbed by the first filler layer 11 and the second filler layer 14, the treatment effect is better, the secondary absorption of the VOCS is realized by the branch pipe 12 and the second spray 13, the import of the waste gas is realized by the air inlet pipe 15, and the exhaust of the treated gas is realized by the exhaust pipe 16 and the fan 17.

[0023] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for treating high-concentration VOCs desorption tail gas using an absorption method, comprising a spray tower (1) and a circulating water tank (2), characterized in that: A circulating water tank (2) is provided on one side of the bottom of the spray tower (1). The circulating water tank (2) is fixedly connected to the spray tower (1). A water pipe (3) is provided on one side of the circulating water tank (2). The water pipe (3) extends into the interior of the spray tower (1). A first spray (4) is provided on one side of the water pipe (3). A circulating water pump (5) is provided on one side of the water pipe (3). A liquid level probe (6) is provided inside the circulating water tank (2). The liquid level probe (6) is fixedly connected to the circulating water tank (2). A liquid addition pipe (7) is provided on one side of the circulating water tank (2). A solenoid valve (8) is provided on one side of the liquid addition pipe (7). A dosing tank (9) is provided at one end of the liquid addition pipe (7).

2. The device for treating high-concentration VOCs desorption tail gas using absorption method according to claim 1, characterized in that: The spray tower (1) is equipped with a filter screen (10) inside, and the filter screen (10) is fixedly connected to the spray tower (1). The spray tower (1) is equipped with a first packing layer (11) inside.

3. The device for treating high-concentration VOCs desorption tail gas using absorption method according to claim 1, characterized in that: A branch pipe (12) is provided on one side of the water pipe (3), the branch pipe (12) extends into the interior of the spray tower (1), and a second spray (13) is provided on one side of the branch pipe (12).

4. The device for treating high-concentration VOCs desorption tail gas using absorption method according to claim 1, characterized in that: The spray tower (1) has a second packing layer (14) inside, and an air inlet pipe (15) is provided on one side of the spray tower (1), and a valve is provided on one side of the air inlet pipe (15).

5. The device for treating high-concentration VOCs desorption tail gas using absorption method according to claim 1, characterized in that: The top of the spray tower (1) is provided with an exhaust pipe (16), and the middle of the exhaust pipe (16) is provided with a fan (17).

6. The device for treating high-concentration VOCs desorption tail gas using absorption method according to claim 3, characterized in that: The first spray (4) and the second spray (13) are provided in multiple ways, and the solenoid valve (8) and the liquid level probe (6) are electrically connected.

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