Exhaust gas absorption azeotrope column

Abstract

The utility model relates to the technical field of azeotropic tower, disclose a kind of waste gas absorption azeotropic tower, comprising: be located on the azeotropic tower main body of apron, the azeotropic tower main body partial middle part position is provided with feed inlet, the azeotropic tower main body bottom is provided with gas inlet, the azeotropic tower main body bottom is provided with kettle liquid outlet;With the gas outlet communication waste gas absorption tank body, the side of the waste gas absorption tank body is provided with the spray assembly extending to the waste gas absorption tank body inside, the waste gas absorption tank body inside is provided with packing layer, the bottom of the waste gas absorption tank body is provided with circulating pipe.The utility model is designed with waste gas absorption tank body, spray assembly, tank body outlet, circulating pipe etc., is composed of a waste gas absorption mechanism located in the upper azeotropic tower, can be after azeotropic tower gas exhaust waste gas absorption, the utility model is located in the upper azeotropic tower main body, occupies small, applicable to waste gas generation less azeotropic tower.

Description

Technical Field

[0001] This utility model relates to the field of azeotropic tower technology, and more specifically, to a waste gas absorption azeotropic tower. Background Technology

[0002] An azeotropic column is a special distillation device used to separate azeotropic mixtures. An azeotropic mixture refers to a system in which the liquid and gas phases have the same composition under certain conditions and cannot be separated by ordinary distillation.

[0003] In reality, azeotropic towers often need to be used in conjunction with waste gas absorption devices. However, some azeotropic towers produce relatively little waste gas, and the designed waste gas absorption devices are large in size, costly, and impractical. Therefore, there is an urgent need to design a waste gas absorption azeotropic tower to solve the above problems. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an azeotropic gas absorption tower, which solves the issues of some azeotropic towers producing less waste gas, and the waste gas absorption devices being large in size, costly, and less practical.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An azeotropic absorption tower for waste gas includes:

[0007] An azeotropic tower body is mounted on a skirt base. The azeotropic tower body has a feed inlet located near the center, a gas inlet located at the bottom, a bottom liquid outlet located at the bottom, and a gas outlet and a reflux outlet located at the top.

[0008] The waste gas absorption tank is connected to the gas outlet. A spray assembly extending into the interior of the waste gas absorption tank is provided on one side of the waste gas absorption tank. A packing layer is provided inside the waste gas absorption tank. A circulation pipe is provided at the bottom of the waste gas absorption tank. A tank outlet is provided at the top of the waste gas absorption tank.

[0009] As a further improvement to this utility model, the azeotropic tower body is also provided with several temperature measuring ports.

[0010] As a further improvement to this utility model, the azeotropic tower body is composed of several cylindrical sections, and manholes are provided on the cylindrical sections.

[0011] As a further improvement to this utility model, the gas outlet is connected to the tank inlet, and an extension pipe is installed at the top of the tank inlet, with a shielding edge for the outlet of the extension pipe provided at the top of the extension pipe.

[0012] As a further improvement to this utility model, a flow meter is provided at the input end of the spray assembly.

[0013] As a further improvement to this utility model, a water pump is installed at the input end of the spray assembly. The water pump draws the absorbent liquid from the liquid tank and sprays it into the waste gas absorption tank through the spray assembly.

[0014] As a further improvement to this utility model, the output end of the circulation pipe is connected to the liquid tank.

[0015] As a further improvement to this utility model, an emergency pipe is provided on the outer wall of the waste gas absorption tank near the bottom.

[0016] The beneficial technical effects of this utility model are:

[0017] This utility model is designed with a waste gas absorption tank, a spray assembly, a tank outlet, a circulation pipe, etc., forming a waste gas absorption mechanism located above an azeotropic tower. It can absorb waste gas after the gas is discharged from the azeotropic tower. This utility model is located above the main body of the azeotropic tower, occupies little space, and is suitable for azeotropic towers that produce less waste gas.

[0018] This utility model also includes an extension pipe and a shielding edge, which do not affect the entry of waste gas into the waste gas absorption tank, and can also prevent the absorption liquid from entering the azeotropic tower body, thus ensuring the stable operation of the azeotropic tower. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a schematic diagram of the waste gas absorption mechanism in this utility model.

[0021] Figure 3 This is a schematic diagram of the absorption liquid circulation in this utility model.

[0022] In the diagram: 1. Skirt; 2. Azeotropic tower body; 3. Feed inlet; 4. Gas inlet; 5. Kettle liquid outlet; 6. Gas outlet; 7. Reflux outlet; 8. Manhole; 9. Temperature measuring port; 10. Waste gas absorption tank; 11. Tank inlet; 12. Extension pipe; 13. Barrier edge; 14. Spray assembly; 15. Packing layer; 16. Tank outlet; 17. Emergency pipe; 18. Circulation pipe; 19. Flow meter. Detailed Implementation

[0023] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0024] Combination Figure 1 - Figure 3 The present invention provides the following embodiments:

[0025] An azeotropic gas absorption tower includes: a skirt base 1, an azeotropic tower body 2, a waste gas absorption tank 10, a spray assembly 14, and a tank outlet 16. The azeotropic tower body 2 is mounted on the skirt base 1, and the waste gas absorption tank 10 is located on top of the azeotropic tower body 2. The azeotropic tower body 2 and the waste gas absorption tank 10 can be reinforced with a steel structure, etc. The waste gas absorption tank 10 is connected to the spray assembly 14 from the side, and the tank outlet 16 is provided inside the waste gas absorption tank 10. Waste gas is absorbed by spraying absorbent liquid. This utility model occupies little ground space and is suitable for azeotropic towers that produce little waste gas. In addition, the smaller volume of the waste gas absorption mechanism makes it cheaper to manufacture.

[0026] The azeotropic distillation column body 2 is welded to the top of the skirt support 1. A feed inlet 3 is located slightly off-center from the center of the azeotropic distillation column body 2. A gas inlet 4 is located at the bottom of the azeotropic distillation column body 2. A bottom liquid outlet 5 is located at the bottom of the azeotropic distillation column body 2. A gas outlet 6 and a reflux outlet 7 are located at the top of the azeotropic distillation column body 2. The structure is stable and the design is reasonable, meeting the requirements of azeotropic distillation.

[0027] A spray assembly 14 extending into the interior of the waste gas absorption tank 10 is provided on one side. A packing layer 15 is provided inside the waste gas absorption tank 10. A circulation pipe 18 is provided at the bottom of the waste gas absorption tank 10, and a tank outlet 16 is provided at the top of the waste gas absorption tank 10. A spray head is provided at the output end of the spray assembly 14. In this embodiment, the tank outlet 16 is designed with two layers, and an output branch of the spray assembly 14 is provided above each layer of tank outlet 16. In addition, the circulation pipe 18 is used for the return circulation of hand sanitizer.

[0028] As another preferred embodiment of this utility model, the azeotropic tower body 2 is also provided with several temperature measuring ports 9. Specifically, temperature measuring elements are inserted into the temperature measuring ports 9 to monitor the temperature in the azeotropic tower body 2 and ensure that the azeotropic distillation reaction in the azeotropic tower body 2 proceeds.

[0029] As another preferred embodiment of this utility model, the azeotropic tower body 2 is composed of several cylindrical sections, and manholes 8 are provided on the cylindrical sections. Combined with... Figure 1 The manhole 8 designed on the cylindrical section is sealed by a sealing door. During inspection and maintenance, maintenance personnel can enter the azeotropic tower body 2 through the manhole 8.

[0030] As another preferred embodiment of this utility model, an extension pipe 12 is installed at the top of the tank inlet 11, and a shielding edge 13 for the opening of the extension pipe 12 is provided at the top of the extension pipe 12. Combined with... Figure 1 and Figure 2Specifically, in this embodiment, the tank inlet 11 is located at the bottom of the waste gas absorption tank 10, and is connected to the gas outlet 6. The tank inlet 11 is also connected to the extension pipe 12. The shielding edge 13 is installed inside the waste gas absorption tank 10 via a frame. The height of the extension pipe 12 is greater than 1 / 4 of the height of the waste gas absorption tank 10, serving as a seepage prevention measure to prevent the absorbent liquid at the bottom of the waste gas absorption tank 10 from entering the azeotropic tower body 2. Additionally, the shielding edge 13 prevents the absorbent liquid from entering during spraying. This design is reasonable and effectively prevents the absorbent liquid from entering the azeotropic tower body 2, ensuring the normal operation of the azeotropic distillation reaction in the azeotropic tower body 2.

[0031] As another preferred embodiment of this utility model, a flow meter 19 is provided at the input end of the spray assembly 14. Specifically, the flow meter 19 is located on the main pipeline of the spray assembly 14 and is used to monitor the flow rate.

[0032] As another preferred embodiment of this utility model, a water pump is installed at the input end of the spray assembly 14. The water pump draws the absorbent liquid from the liquid tank and sprays it into the waste gas absorption tank 10 through the spray assembly 14. Figure 3 In this embodiment, a water pump can be installed in a liquid tank to transport the absorbent liquid. The absorbent liquid is sprayed into the waste gas absorption tank 10 through the spray assembly 14 for waste gas absorption.

[0033] As another preferred embodiment of this utility model, the output end of the circulation pipe 18 is connected to the liquid tank. Specifically, the sprayed absorbent liquid collects at the bottom of the waste gas absorption tank 10 and returns to the liquid tank through the circulation pipe 18. A dosing station can also be designed in the liquid tank to complete the following: Figure 3 A loop within a loop.

[0034] As another preferred embodiment of this utility model, an emergency pipe 17 is provided on the outer wall of the waste gas absorption tank 10 near the bottom. Referring to the accompanying drawings, in this embodiment, the emergency pipe 17 is also connected to the liquid tank. When the liquid level of the absorbent at the bottom of the waste gas absorption tank 10 reaches the inlet of the emergency pipe 17, the absorbent can also flow back into the liquid tank through the emergency pipe 17, thus preventing excessive accumulation of absorbent in the waste gas absorption tank 10.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A waste gas absorption azeotropic tower, characterized in that, include: An azeotropic tower body (2) is provided on the skirt base (1). The azeotropic tower body (2) has a feed inlet (3) at the middle position, a gas inlet (4) at the bottom, a kettle liquid outlet (5) at the bottom, and a gas outlet (6) and a reflux liquid outlet (7) at the top. A waste gas absorption tank (10) is connected to the gas outlet (6). A spray assembly (14) extending into the interior of the waste gas absorption tank (10) is provided on one side of the waste gas absorption tank (10). A packing layer (15) is provided inside the waste gas absorption tank (10). A circulation pipe (18) is provided at the bottom of the waste gas absorption tank (10). A tank outlet (16) is provided at the top of the waste gas absorption tank (10).

2. The waste gas absorption azeotropic tower according to claim 1, characterized in that, The azeotropic tower body (2) is also equipped with several temperature measuring ports (9).

3. The waste gas absorption azeotropic tower according to claim 1, characterized in that, The azeotropic tower body (2) is composed of several cylindrical sections, and manholes (8) are provided on the cylindrical sections.

4. The waste gas absorption azeotropic tower according to claim 1, characterized in that, The gas outlet (6) is connected to the tank inlet (11), and an extension pipe (12) is installed at the top of the tank inlet (11). The top of the extension pipe (12) is provided with a shielding edge (13) for the opening of the extension pipe (12).

5. The waste gas absorption azeotropic tower according to claim 1, characterized in that, A flow meter (19) is provided at the input end of the spray assembly (14).

6. The waste gas absorption azeotropic tower according to claim 5, characterized in that, A water pump is installed at the input end of the spray assembly (14). The water pump draws the absorbent liquid in the liquid tank and sprays it into the waste gas absorption tank (10) through the spray assembly (14).

7. The waste gas absorption azeotropic tower according to claim 6, characterized in that, The output end of the circulation pipe (18) is connected to the liquid tank.

8. The waste gas absorption azeotropic tower according to claim 7, characterized in that, An emergency pipe (17) is installed on the outer wall near the bottom of the waste gas absorption tank (10).

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