High-efficiency natural gas desulfurization and decarburization integrated device

Abstract

The utility model discloses a kind of high-efficiency natural gas desulfurization and decarbonization integration device, it is related to natural gas purification technical field, including absorption tower, liquid storage cylinder, the liquid storage cylinder is arranged in the absorption tower inner chamber, and the liquid storage cylinder is as the storage desulfurization and decarbonization absorbent container;The liquid storage cylinder inner chamber is provided with a partition, and the partition separates the liquid storage cylinder inner chamber into two independent chambers;The liquid storage cylinder is arranged in the absorption tower inner chamber, and the liquid storage cylinder inner chamber is provided with a partition, and the liquid storage cylinder is separated into two independent chambers, and the horizontal cylinder on the side of absorption tower is provided with a switching mechanism, when amino acid salt solution in one chamber of liquid storage cylinder is saturated, switching mechanism controls natural gas to be automatically introduced into another chamber rapidly, carries out carbon removal and desulfurization work, realizes the continuity of natural gas purification, greatly reduces the device downtime, improves operating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of natural gas purification technology, and in particular to a high-efficiency integrated device for natural gas desulfurization and decarbonization. Background Technology

[0002] With the continuous advancement of science and technology, natural gas has gradually become an indispensable fuel in people's daily lives. Therefore, the extraction and processing of natural gas has received increasing attention. Because initially extracted natural gas often contains high levels of carbon dioxide or sulfides, severely affecting its purity, it must undergo purification treatment before being put into use.

[0003] Some integrated desulfurization and decarbonization devices have been developed in the existing technology. The specific principle is to pass the natural gas to be treated into a container containing amino acid salts. However, when the saturated amino acid salt solution in the container is replaced, it will cause the integrated desulfurization and decarbonization device to be shut down for a long time, which will affect the continuous supply of natural gas and reduce the overall operating efficiency of the device. Summary of the Invention

[0004] The purpose of this invention is to address the problem that some existing integrated desulfurization and decarbonization devices, which work by introducing the natural gas to be treated into a container containing amino acid salts, cause the integrated desulfurization and decarbonization device to shut down for a long time when the saturated amino acid salt solution in the container is replaced, affecting the continuous supply of natural gas and reducing the overall operating efficiency of the device. Therefore, this invention proposes a high-efficiency integrated natural gas desulfurization and decarbonization device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency natural gas desulfurization and decarbonization integrated device includes an absorption tower and a liquid storage tank. The liquid storage tank is provided in the inner cavity of the absorption tower and serves as a container for storing the desulfurization and decarbonization absorbent. A partition plate is provided in the inner cavity of the liquid storage tank, which divides the inner cavity of the liquid storage tank into two independent chambers. The absorption tower has a horizontal cylinder fixedly installed above the liquid storage cylinder, and an inlet pipe is provided on the side of the horizontal cylinder; The horizontal cylinder is equipped with a switching mechanism that controls the natural gas to enter any chamber of the storage cylinder. A horizontal base is fixedly installed on the outside of the absorption tower, and an emergency release component is installed at the bottom of the horizontal base to control the emergency discharge of natural gas.

[0006] Optionally, the switching mechanism includes a distribution pipe, an electric push rod, and an arc-shaped baffle. The electric push rod is fixedly installed on the top of the horizontal seat, and an arc-shaped baffle is provided at the output end of the electric push rod. The arc-shaped baffle fits against the inner cavity of the horizontal cylinder. A distribution pipe is symmetrically fixedly installed at the bottom of the horizontal cylinder, and the distribution pipe extends into the inner cavity of the liquid storage cylinder.

[0007] Optionally, the emergency release assembly includes an emergency tube, an emergency column, and a servo motor. The emergency tube is located at one end of the horizontal cylinder, and the servo motor is fixedly located at the bottom of the horizontal base.

[0008] Optionally, an emergency stop is fixedly provided at the output end of the servo motor. The emergency stop passes through two distribution pipes and an emergency pipe in sequence. An AC port is opened in the inner cavity of the distribution pipe of the emergency stop.

[0009] Optionally, the emergency column has a release hole in the inner cavity of the emergency pipe, and the cross-sectional planes of the release hole and the AC hole are perpendicular to each other.

[0010] Optionally, a return pipe is symmetrically and fixedly connected to the top of the liquid storage cylinder, and a waste outlet pipe is fixedly connected to the liquid storage cylinder below the return pipe.

[0011] Optionally, an agglomeration hopper is fixedly provided at the top of the absorption tower, and an outlet pipe is provided at the top of the agglomeration hopper.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This device has a liquid storage cylinder inside the absorption tower, and a partition plate inside the liquid storage cylinder to divide the liquid storage cylinder into two independent chambers. A switching mechanism is installed on the horizontal cylinder on the side of the absorption tower. When the amino acid salt solution in one chamber of the liquid storage cylinder is saturated, the switching mechanism quickly controls the automatic introduction of natural gas into the other chamber to carry out carbon and sulfur removal work, realizing the continuity of natural gas purification, greatly reducing the downtime of the device and improving operating efficiency.

[0013] 2. This device is equipped with an emergency release component on the distribution pipe. The emergency release component can control the natural gas to be discharged directly from the absorption tower without decarbonization and desulfurization in an emergency, so as to avoid equipment damage or safety hazards caused by gas retention in the tower. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 for Figure 1 A schematic diagram of the half-section structure of the absorption tower.

[0016] Figure 3 for Figure 1 A schematic diagram of the full cross-section structure.

[0017] Figure 4 This is a schematic diagram of the emergency release component.

[0018] In the diagram: 1. Absorption tower; 2. Wastewater outlet pipe; 3. Return pipe; 4. Aggregating hopper; 5. Gas outlet pipe; 6. Horizontal cylinder; 62. Inlet pipe; 63. Distribution pipe; 7. Emergency pipe; 8. Divider plate; 9. Liquid storage cylinder; 10. Electric push rod; 101. Arc-shaped baffle; 11. Horizontal seat; 12. Servo motor; 13. Release hole; 14. Emergency column; 15. AC port. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4 A high-efficiency integrated natural gas desulfurization and decarbonization device includes an absorption tower 1 and a storage tank 9. The storage tank 9 is installed inside the absorption tower 1 and serves as a container for storing the desulfurization and decarbonization absorbent. A partition plate 8 is welded to the inner cavity of the storage tank 9, dividing the inner cavity of the storage tank 9 into two independent chambers. A return pipe 3 is symmetrically fixed and connected to the top of the storage tank 9. A wastewater outlet pipe 2 is fixedly welded to the storage tank 9 below the return pipe 3. The return pipe 3 is connected to the reflux system of the regeneration tower. The external regeneration tower can introduce the regenerated amino acid salt solution into the storage tank 9 through a flow pump. The wastewater outlet pipe 2 is connected to the pumping system of the external regeneration tower. The pumping system of the external regeneration tower removes the saturated amino acid salt solution and regenerates it by heating and depressurization.

[0021] A horizontal cylinder 6 is fixedly welded above the liquid storage cylinder 9 in the absorption tower 1. An inlet pipe 62 is welded to the side of the horizontal cylinder 6 and is connected to an external natural gas pipeline. The inlet pipe 62 introduces external natural gas into the inner cavity of the horizontal cylinder 6. An agglomeration hopper 4 is fixed to the top of the absorption tower 1 with an array of bolts. An outlet pipe 5 is set on the top of the agglomeration hopper 4. In fact, the horizontal cylinder 6 is set horizontally and its diameter is smaller than that of the absorption tower 1. When natural gas is introduced into the liquid storage cylinder 9, the natural gas can eventually overflow from the liquid storage cylinder 9 and be discharged from the outlet pipe 5 set on the top of the absorption tower 1.

[0022] The horizontal cylinder 6 is equipped with a switching mechanism that controls the natural gas to enter any chamber of the storage cylinder 9. The switching mechanism includes a distribution pipe 63, an electric push rod 10, and an arc-shaped baffle 101. The electric push rod 10 is bolted to the top of the horizontal seat 11. The output end of the electric push rod 10 is equipped with an arc-shaped baffle 101, which fits against the inner cavity of the horizontal cylinder 6. The bottom of the horizontal cylinder 6 is symmetrically and welded with distribution pipes 63, which extend into the inner cavity of the storage cylinder 9. When the electric push rod 10 extends or retracts, only one distribution pipe 63 will be connected to the inner cavity of the horizontal cylinder 6.

[0023] A horizontal seat 11 is fixedly installed on the outside of the absorption tower 1. An emergency release component is installed at the bottom of the horizontal seat 11. The emergency release component controls the emergency discharge of natural gas. The emergency release component includes an emergency pipe 7, an emergency column 14, and a servo motor 12. The emergency pipe 7 is fixedly welded to one end of the horizontal cylinder 6. The other end of the emergency pipe 7 is connected to a combustion device in the prior art. For a large amount of combustible gas that cannot be directly discharged, it is usually treated by combustion and equipped with an ignition and stabilization device to prevent uncontrolled release.

[0024] The servo motor 12 is fixedly mounted at the bottom of the horizontal seat 11 with bolts. An emergency post 14 is fixedly mounted at the output end of the servo motor 12. The emergency post 14 passes through two distribution pipes 63 and an emergency pipe 7 in sequence. An AC hole 15 is opened in the inner cavity of the distribution pipe 63 and a release hole 13 is opened in the inner cavity of the emergency pipe 7. The end face cross-sections of the release hole 13 and the AC hole 15 are perpendicular to each other.

[0025] It should be added that, in actual installation, the vent pipe 5 will be equipped with sulfide and carbon dioxide sensors to detect the amino acid salt solution inside the liquid storage cylinder 9.

[0026] The specific implementation steps and principles of this utility model are as follows: When the entire device is working normally, the two AC ports 15 are in a vertical position, the release port 13 is in a horizontal position, the emergency pipe 7 is closed, the horizontal cylinder 6 can introduce natural gas into the amino acid salt solution in the inner cavity of the storage cylinder 9 through the distribution pipe 63, the electric push rod 10 is in a retracted position, one of the arc-shaped baffles 101 blocks the inside of one distribution pipe 63, and through the inlet pipe 62, the horizontal cylinder 6 can only blow natural gas into one chamber in the inner cavity of the storage cylinder 9 through one distribution pipe 63. The natural gas is decarbonized and desulfurized by the amino acid salt solution, and the treated natural gas is finally discharged from the gas outlet pipe 5 at the top of the collection hopper 4.

[0027] When it is necessary to replace the amino acid salt melt in one chamber of the storage cylinder 9, the electric push rod 10 is activated. The electric push rod extends and drives the arc-shaped baffle 10 to close the other distribution pipe 63, opening the original distribution pipe 63.

[0028] In case of an emergency, the user controls the servo motor 12 to rotate, causing the two AC ports 15 to be in a horizontal state and the release port 13 to be in a vertical state. The emergency pipe 7 is opened and the two distribution pipes 63 are closed.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency integrated natural gas desulfurization and decarbonization device, comprising an absorption tower (1) and a liquid storage tank (9), characterized in that, The absorber tower (1) is equipped with a liquid storage cylinder (9) inside, which serves as a container for storing the desulfurization and decarbonization absorbent. The liquid storage cylinder (9) is provided with a partition plate (8) in its inner cavity, which divides the inner cavity of the liquid storage cylinder (9) into two independent chambers; The absorption tower (1) has a horizontal cylinder (6) fixedly installed above the liquid storage cylinder (9), and an inlet pipe (62) is provided on the side of the horizontal cylinder (6). The horizontal cylinder (6) is equipped with a switching mechanism, which controls the natural gas to enter any chamber of the liquid storage cylinder (9); A horizontal seat (11) is fixedly installed on the outside of the absorption tower (1), and an emergency release component is installed at the bottom of the horizontal seat (11) to control the emergency discharge of natural gas.

2. The high-efficiency natural gas desulfurization and decarbonization integrated device according to claim 1, characterized in that, The switching mechanism includes a distribution pipe (63), an electric push rod (10), and an arc-shaped baffle (101). The electric push rod (10) is fixedly installed on the top of the horizontal seat (11). An arc-shaped baffle (101) is provided at the output end of the electric push rod (10). The arc-shaped baffle (101) fits against the inner cavity of the horizontal cylinder (6). The distribution pipe (63) is symmetrically fixed at the bottom of the horizontal cylinder (6). The distribution pipe (63) extends into the inner cavity of the liquid storage cylinder (9).

3. The high-efficiency integrated natural gas desulfurization and decarbonization device according to claim 1, characterized in that, The emergency release assembly includes an emergency tube (7), an emergency column (14), and a servo motor (12). The emergency tube (7) is located at one end of the horizontal cylinder (6), and the servo motor (12) is fixedly located at the bottom of the horizontal seat (11).

4. The high-efficiency integrated natural gas desulfurization and decarbonization device according to claim 3, characterized in that, An emergency post (14) is fixedly installed at the output end of the servo motor (12). The emergency post (14) passes through two distribution pipes (63) and an emergency pipe (7) in sequence. An AC hole (15) is opened in the inner cavity of the distribution pipe (63) of the emergency post (14).

5. The high-efficiency integrated natural gas desulfurization and decarbonization device according to claim 4, characterized in that, The emergency column (14) has a release hole (13) inside the emergency tube (7), and the end face cross-sections of the release hole (13) and the AC hole (15) are perpendicular to each other.

6. The high-efficiency natural gas desulfurization and decarbonization integrated device according to claim 1, characterized in that, The top of the liquid storage cylinder (9) is symmetrically connected to a return pipe (3), and the liquid storage cylinder (9) is fixedly connected to a waste pipe (2) below the return pipe (3).

7. The high-efficiency natural gas desulfurization and decarbonization integrated device according to claim 1, characterized in that, The top of the absorption tower (1) is fixedly provided with an agglomeration hopper (4), and the top of the agglomeration hopper (4) is provided with an outlet pipe (5).

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