Natural gas desulfurization tower

Abstract

The utility model discloses a natural gas desulfurization tower, and particularly relates to the technical field of natural gas desulfurization, which comprises a desulfurization tower, the top end of the desulfurization tower is fixedly connected with a gas outlet pipe, one side of the desulfurization tower is fixedly connected with a gas inlet assembly, the bottom end of the desulfurization tower is provided with a sewage discharge assembly, and one side of the desulfurization tower is provided with a liquid inlet assembly. A first isolation plate is fixedly connected into the desulfurization tower, rubber rings are arranged at the top end and the bottom end of the first isolation plate, an inner cylinder is arranged at the bottom end of the first isolation plate, and a cylinder cover is arranged at the top end of the inner cylinder. According to the desulfurization tower, hydrogen sulfide in natural gas can be completely removed when the natural gas passes through the desulfurization tower, the use efficiency is improved, impurities entrained in the natural gas are filtered when the natural gas enters the desulfurization tower, and the filter screen is drawn out to be replaced and cleaned more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas desulfurization, and more specifically, to a natural gas desulfurization tower. Background Art

[0002] Natural gas refers to a mixture of hydrocarbon and non-hydrocarbon gases stored in the strata. Its main component is methane, and it also contains small amounts of ethane, propane, nitrogen, carbon dioxide, hydrogen sulfide, etc. It is usually formed naturally in geological structures such as oil fields, gas fields, and coal seams. As a high-quality, efficient, and clean energy source, natural gas occupies an important position in the energy supply of modern society.

[0003] At present, sulfur-containing gas is usually treated by using a desulfurization tower device. The sulfur-containing gas is passed into the desulfurization tower device, and then water is passed into the device to remove the sulfur in the gas. However, this method cannot completely remove the sulfur in the gas, and there will be a small amount of residue, which will cause environmental pollution after discharge.

[0004] After searching, the Chinese patent with authorization announcement number CN219149743U discloses a sulfur-containing natural gas processing device. The device initially desulfurizes the natural gas entering from the inlet pipe through a liquid spray component, and then desulfurizes the natural gas again by passing it from the inner tube into the inner cylinder. The desulfurized natural gas is finally discharged from the outer pipe through a mist capture net and out of the outlet pipe.

[0005] However, in actual use, part of the natural gas is desulfurized by the liquid spray component and then enters the inner pipe for desulfurization again, and part of the natural gas follows the desulfurized lean liquid sprayed by the liquid spray component through the through hole into the inner cavity of the desulfurization tower. Due to the air pressure factor, the natural gas returns to the upper layer through the through hole and enters the inner pipe. Since the natural gas in the inner cavity is discharged from the through hole due to the air pressure factor, the efficiency of natural gas discharge is not high. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a natural gas desulfurization tower to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a natural gas desulfurization tower, comprising a desulfurization tower, the top of which is fixedly connected to an air outlet pipe, one side of which is fixedly connected to an air intake assembly, the bottom of which is provided with a sewage discharge assembly, and one side of which is provided with a liquid inlet assembly;

[0008] A first isolation plate is fixedly connected to the inside of the desulfurization tower, and rubber rings are provided at the top and bottom of the first isolation plate. An inner cylinder is provided at the bottom of the first isolation plate, and a cylinder cover is provided at the top of the inner cylinder. A second isolation plate is provided on the outer wall of the inner cylinder, and the second isolation plate is fixedly connected to the desulfurization tower. A first ventilation pipe is fixedly connected between the cylinder cover and the first isolation plate, and two second ventilation pipes are fixedly connected between the second isolation plate and the cylinder cover.

[0009] In order to achieve the effect of filtering natural gas, preferably, the air intake assembly includes an air intake pipe fixedly installed on one side of the desulfurization tower, the air intake pipe passes through the desulfurization tower and extends to the bottom of the desulfurization tower, and one end of the air intake pipe is arranged in the inner cavity of the inner cylinder, one end of the air intake pipe is fixedly connected to a filter tube, a filter screen is arranged inside the filter tube, one end of the filter screen is fixedly connected to a pumping plate, and the pumping plate passes through one side of the filter tube, the filter tube and the pumping plate are movably connected, the outer wall of the pumping plate is provided with an arc-shaped gasket, and one end of the pumping plate is provided with a handle.

[0010] In order to achieve the effect of controlling the discharge of impurities in the sewage liquid, preferably, the sewage discharge component includes a first sewage discharge pipe fixedly connected to the bottom end of the desulfurization tower and a second sewage discharge pipe passing through the bottom end of the desulfurization tower and fixedly connected to the inner cylinder, and the outer walls of the first sewage discharge pipe and the second sewage discharge pipe are both provided with solenoid valves.

[0011] In order to achieve the effect of filtering out the liquid desulfurization lean liquid in the natural gas, preferably, a mist catching net is provided inside the desulfurization tower, and the mist catching net is provided on the top of the first isolation plate.

[0012] In order to achieve the effect of discharging the desulfurized lean liquid into the desulfurization tower and the inner cylinder, preferably, the liquid inlet assembly includes a first liquid inlet pipe fixedly connected to one side of the desulfurization tower, and a second liquid inlet pipe is provided on the top of the first liquid inlet pipe. The second liquid inlet pipe passes through one side of the desulfurization tower and extends to the inside of the desulfurization tower and is fixedly connected to the inner cylinder.

[0013] In order to achieve a better desulfurization effect of natural gas, preferably, the cross-section of the air intake pipe is set to be Z-shaped, and the cross-section of the second ventilation pipe is set to be N-shaped.

[0014] Technical effects and advantages of this utility model:

[0015] 1. By setting up a desulfurization tower, an air inlet pipe, an inner cylinder, a first vent pipe, and a second vent pipe, natural gas enters the bottom of the desulfurization tower through the air inlet pipe and undergoes a preliminary reaction with the desulfurized lean liquid. Then, the natural gas floats out of the desulfurized lean liquid and enters the second vent pipe. It then reacts with the desulfurized lean liquid at the bottom of the inner cylinder along the second vent pipe. The completely desulfurized natural gas floats out through the first vent pipe, thereby improving the utilization efficiency. Multiple desulfurization processes can completely remove hydrogen sulfide in the natural gas.

[0016] 2. By setting up the air intake assembly, impurities contained in the natural gas can be filtered, and the filter can be taken out through the handle for easy replacement and cleaning. The arc-shaped gasket on the extraction plate has the effect of sealing the air intake assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the filter structure of the present utility model.

[0019] Figure 3 This is a schematic structural diagram of one side of the desulfurization tower of the utility model.

[0020] Figure 4 This is a structural diagram of one side of the inner cylinder of the present invention.

[0021] Figure 5 This is a schematic structural diagram of the isolation plate of the present utility model.

[0022] The accompanying drawings are marked as follows: 1. Desulfurization tower; 2. Exhaust pipe; 3. First isolation plate; 4. Rubber ring; 5. Inner cylinder; 6. Cylinder cover; 7. Second isolation plate; 8. First ventilation pipe; 9. Second ventilation pipe; 10. Inlet pipe; 11. Filter tube; 12. Filter screen; 13. Pull-out plate; 14. Arc-shaped gasket; 15. Handle; 16. First sewage pipe; 17. Second sewage pipe; 18. Solenoid valve; 19. Mist catcher; 20. First liquid inlet pipe; 21. Second liquid inlet pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] As attached Figure 1-5 A natural gas desulfurization tower shown includes a desulfurization tower 1, a gas outlet pipe 2 is fixedly connected to the top of the desulfurization tower 1, an air inlet assembly is fixedly connected to one side of the desulfurization tower 1, a sewage discharge assembly is provided at the bottom of the desulfurization tower 1, and a liquid inlet assembly is provided on one side of the desulfurization tower 1;

[0025] A first isolation plate 3 is fixedly connected to the inside of the desulfurization tower 1, and rubber rings 4 are provided at the top and bottom of the first isolation plate 3. An inner cylinder 5 is provided at the bottom of the first isolation plate 3, and a cylinder cover 6 is provided at the top of the inner cylinder 5. A second isolation plate 7 is provided on the outer wall of the inner cylinder 5, and the second isolation plate 7 is fixedly connected to the desulfurization tower 1. A first ventilation pipe 8 is fixedly connected between the cylinder cover 6 and the first isolation plate 3, and two second ventilation pipes 9 are fixedly connected between the second isolation plate 7 and the cylinder cover 6.

[0026] Specifically, in this structure, by closing the sewage discharge component, opening the liquid inlet component, discharging a certain amount of desulfurized lean liquid and then closing the liquid inlet component, natural gas enters the desulfurized lean liquid in the inner cavity of the desulfurization tower 1 through the gas inlet component, and the natural gas that has been initially desulfurized floats out of the desulfurized lean liquid and passes through the second vent pipe 9 into the desulfurized lean liquid in the inner cavity of the inner tube 5 for re-desulfurization. The completely desulfurized natural gas is discharged from the first vent pipe 8.

[0027] In a specific embodiment, as shown in the attached Figure 1 、 2 As shown in Figure 3, the air intake assembly includes an air intake pipe 10 fixedly installed on one side of the desulfurization tower 1. The air intake pipe 10 passes through the desulfurization tower 1 and extends to the bottom of the desulfurization tower 1, and one end of the air intake pipe 10 is arranged in the inner cavity of the inner tube 5. One end of the air intake pipe 10 is fixedly connected to a filter tube 11, and a filter screen 12 is arranged inside the filter tube 11. One end of the filter screen 12 is fixedly connected to a pumping plate 13, and the pumping plate 13 passes through one side of the filter tube 11. The filter tube 11 and the pumping plate 13 are movably connected. An arc-shaped gasket 14 is provided on the outer wall of the pumping plate 13, and a handle 15 is provided at one end of the pumping plate 13 to facilitate filtering impurities in the natural gas.

[0028] Specifically, in this structure, when natural gas passes through the filter tube 11, the filter mesh 12 in the filter tube 11 filters impurities in the natural gas, and the filtered natural gas is discharged into the inner cavity of the desulfurization tower 1 through the air inlet pipe 10. When the filter mesh 12 needs to be cleaned or replaced, the filter mesh 12 can be pulled out through the handle 15 for cleaning or replacement.

[0029] In a specific embodiment, as shown in the attached Figure 1 、 3 As shown in Figure 4, the sewage discharge assembly includes a first sewage discharge pipe 16 fixedly connected to the bottom end of the desulfurization tower 1 and a second sewage discharge pipe 17 that passes through the bottom end of the desulfurization tower 1 and is fixedly connected to the inner tube 5. The outer walls of the first sewage discharge pipe 16 and the second sewage discharge pipe 17 are both provided with solenoid valves 18 to facilitate cleaning of the desulfurization lean liquid left after desulfurization.

[0030] Specifically, in this structure, the first sewage pipe 16 and the second sewage pipe 17 are discharged by controlling the switch of the solenoid valve 18.

[0031] In a specific embodiment, as shown in the attached Figure 1 、 5As shown, a mist catching net 19 is provided inside the desulfurization tower 1, and the mist catching net 19 is arranged on the top of the first isolation plate 3, so as to filter out the desulfurization lean liquid mixed in the completely desulfurized natural gas.

[0032] Specifically, in this structure, when completely desulfurized natural gas passes through the mist capture net 19 , the desulfurized lean liquid mixed in the natural gas will be collected by the mist capture net 19 .

[0033] In a specific embodiment, as shown in the attached Figure 1 、 3 As shown in Figure 4, the liquid inlet component includes a first liquid inlet pipe 20 fixedly connected to one side of the desulfurization tower 1, and a second liquid inlet pipe 21 is provided on the top of the first liquid inlet pipe 20. The second liquid inlet pipe 21 passes through one side of the desulfurization tower 1 and extends to the interior of the desulfurization tower 1 and is fixedly connected to the inner tube 5, so as to discharge the desulfurized lean liquid into the inner cavity of the desulfurization tower 1 and the inner tube 5.

[0034] Specifically, in this structure, the desulfurized lean liquid enters the inner cavity of the desulfurization tower 1 and the inner cylinder 5 through the first liquid inlet pipe 20 and the second liquid inlet pipe 21 .

[0035] In a specific embodiment, as shown in the attached Figure 1 、 4 As shown, the cross section of the air inlet pipe 10 is set to be Z-shaped, and the cross section of the second ventilation pipe 9 is set to be N-shaped, so as to facilitate better reaction between natural gas and desulfurized lean liquid.

[0036] Specifically, in this structure, when natural gas is discharged from the air inlet pipe 10, it is in the desulfurized lean liquid in the inner cavity of the desulfurization tower 1; when natural gas is discharged from the second vent pipe 9, it is in the desulfurized lean liquid in the inner cavity of the inner tube 5; when natural gas is discharged from both the air inlet pipe 10 and the second vent pipe 9, it is in the desulfurized lean liquid, which makes the reaction more complete.

[0037] The working principle of the utility model is as follows: when in use, the solenoid valve 18 is first closed, and the desulfurized lean liquid is discharged into the inner tube 5 and the inner cavity of the desulfurization tower 1 through the first liquid inlet pipe 20 and the second liquid inlet pipe 21, and then the natural gas is introduced. The natural gas first passes through the filter screen 12 in the filter tube 11, and the impurities contained in the natural gas will be filtered by the filter screen 12;

[0038] The filtered natural gas enters the desulfurization lean liquid at the bottom of the desulfurization tower 1 along the air inlet pipe 10 for primary desulfurization. After the primary desulfurization, the natural gas slowly floats out of the desulfurization lean liquid and enters the second ventilation pipe 9 along the inner cavity of the desulfurization tower 1.

[0039] The initially desulfurized natural gas flows along the second ventilation pipe 9 into the desulfurized lean liquid in the inner cavity of the inner cylinder 5 for further desulfurization. The completely desulfurized natural gas floats out of the desulfurized lean liquid along the first ventilation pipe 8.

[0040] The completely desulfurized natural gas is filtered through the mist catcher 19 to remove the liquid desulfurized lean liquid, and then the completely desulfurized natural gas is discharged from the gas outlet pipe 2. The solenoid valve 18 is opened, and the reacted desulfurized lean liquid is discharged from the first sewage pipe 16 and the second sewage pipe 17.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A natural gas desulfurization tower, comprising a desulfurization tower (1), characterized in that: The top of the desulfurization tower (1) is fixedly connected to an air outlet pipe (2), one side of the desulfurization tower (1) is fixedly connected to an air intake assembly, the bottom of the desulfurization tower (1) is provided with a sewage discharge assembly, and one side of the desulfurization tower (1) is provided with a liquid inlet assembly; A first isolation plate (3) is fixedly connected inside the desulfurization tower (1), a rubber ring (4) is provided at the top and bottom of the first isolation plate (3), an inner cylinder (5) is provided at the bottom of the first isolation plate (3), a cylinder cover (6) is provided at the top of the inner cylinder (5), a second isolation plate (7) is provided on the outer wall of the inner cylinder (5), and the second isolation plate (7) is fixedly connected to the desulfurization tower (1), a first ventilation pipe (8) is fixedly connected between the cylinder cover (6) and the first isolation plate (3), and two second ventilation pipes (9) are fixedly connected between the second isolation plate (7) and the cylinder cover (6).

2. The natural gas desulfurization tower according to claim 1, characterized in that: The air intake assembly comprises an air intake pipe (10) fixedly mounted on one side of the desulfurization tower (1), the air intake pipe (10) passes through the desulfurization tower (1) and extends to the bottom of the desulfurization tower (1), and one end of the air intake pipe (10) is arranged in the inner cavity of the inner cylinder (5), one end of the air intake pipe (10) is fixedly connected to a filter pipe (11), a filter screen (12) is arranged inside the filter pipe (11), one end of the filter screen (12) is fixedly connected to a pumping plate (13), and the pumping plate (13) passes through one side of the filter pipe (11), the filter pipe (11) and the pumping plate (13) are movably connected, an arc-shaped gasket (14) is provided on the outer wall of the pumping plate (13), and a handle (15) is provided at one end of the pumping plate (13).

3. The natural gas desulfurization tower according to claim 1, characterized in that: The sewage discharge assembly comprises a first sewage discharge pipe (16) fixedly connected to the bottom end of the desulfurization tower (1) and a second sewage discharge pipe (17) penetrating the bottom end of the desulfurization tower (1) and fixedly connected to the inner cylinder (5); the outer walls of the first sewage discharge pipe (16) and the second sewage discharge pipe (17) are both provided with solenoid valves (18).

4. The natural gas desulfurization tower according to claim 1, characterized in that: A mist catching net (19) is provided inside the desulfurization tower (1), and the mist catching net (19) is provided on the top of the first isolation plate (3).

5. The natural gas desulfurization tower according to claim 1, characterized in that: The liquid inlet assembly comprises a first liquid inlet pipe (20) fixedly connected to one side of the desulfurization tower (1); a second liquid inlet pipe (21) is provided at the top end of the first liquid inlet pipe (20); the second liquid inlet pipe (21) passes through one side of the desulfurization tower (1) and extends to the interior of the desulfurization tower (1) and is fixedly connected to the inner cylinder (5).

6. The natural gas desulfurization tower according to claim 1, characterized in that: The cross section of the air inlet pipe (10) is set to be Z-shaped, and the cross section of the second ventilation pipe (9) is set to be N-shaped.

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