Efficient MEA regeneration tower

Abstract

The utility model provides a high-efficiency MEA regeneration tower, which is arranged in natural gas inlet conveying equipment and comprises a heater transversely arranged; the tower body is vertically arranged at one end of the heater, and a gas outlet pipe is arranged at the top of the tower body; the in-tower assembly is arranged in the tower body and comprises a filler, distributors are arranged at the two ends of the filler respectively, hydrocyclones are arranged on the sides, away from the filler, of the distributors, a demister is arranged on the side, away from the distributors, of the hydrocyclone located at the upper end, and supporting pieces are arranged on the filler and the hydrocyclones respectively and used for being connected with the tower body. According to the scheme provided by the invention, the acid gas can be flashed out through heating of the heater, and the acid gas is separated out through the filler, so that recycling is realized.

Description

Technical Field

[0001] The utility model belongs to the field of natural gas transportation, and in particular relates to a high-efficiency MEA regeneration tower. Background Art

[0002] During the transportation of natural gas, carbon dioxide and hydrogen sulfide will be mixed into it. In order to improve the purity of natural gas and protect the transportation pipeline and instrument equipment at the same time, the mined natural gas is usually introduced into the natural gas transportation equipment, and then a device for removing carbon dioxide and hydrogen sulfide is installed in the transportation equipment. In the prior art, after the MEA rich liquid reacts with the natural gas, it is directly removed, which may result in incomplete reaction and affect the utilization rate of the MEA rich liquid. Utility Model Content

[0003] To solve the above-mentioned deficiencies in the prior art, the utility model provides a high-efficiency MEA regeneration tower, in which fillers are arranged in the tower body so that the fillers buffer the flow rate of natural gas, prolong the reaction time between MEA and natural gas, and improve the utilization rate of MEA rich liquid.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A high-efficiency MEA regeneration tower, installed in natural gas import and transportation equipment, comprises:

[0006] a heater, which is arranged laterally;

[0007] A tower body is vertically arranged at one end of the heater, and an air outlet pipe is arranged at the top of the tower body;

[0008] The tower component is arranged in the tower body and includes a filler. Distributors are respectively provided at both ends of the filler. A cyclone is provided on the side of the distributor away from the filler. A demister is provided on the side of the cyclone at the upper end away from the distributor. Support members are respectively provided on the filler and the cyclone for connecting the tower body.

[0009] Furthermore, a plurality of heating tubes are arranged inside the heater, and the heating tubes are arranged along the length direction of the heater.

[0010] Furthermore, a flange assembly is provided on the top of the tower body for connecting the air outlet pipe and the upper end of the tower body.

[0011] Furthermore, the packing includes two structured packings arranged at intervals and three wire mesh packings arranged at intervals, and the two structured packings are respectively arranged between two adjacent wire mesh packings of the three wire mesh packings.

[0012] Furthermore, the heater is provided with a temperature sensor, a liquid level sensor, a pressure sensor, a sewage outlet, and a liquid inlet.

[0013] Furthermore, a sensor interface is provided on the outer wall of the tower body.

[0014] Furthermore, the total height of the heater and the tower body does not exceed 3 meters.

[0015] Furthermore, the heater uses a regenerative heat source.

[0016] The beneficial effects of the utility model are:

[0017] The heater is used to heat and flash the gas from the bottom, so that the gas can be effectively flashed and separated through the cyclone and the reversing space of the structured packing, extending the reaction time of MEA rich liquid and natural gas and improving the utilization rate of MEA rich liquid; and the gas outlet pipe and the tower body are connected with a flange assembly to facilitate maintenance and disassembly operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0019] Figure 1 A schematic diagram of the internal structure of the present application is shown.

[0020] Figure 2 A top view of the cyclone of the present application is shown.

[0021] Figure 3 A cross-sectional view of a cyclone of the present application is shown.

[0022] Markings in the figure: heater-1, heating tube-11, temperature sensor-12, liquid level sensor-13, pressure sensor-14, sewage outlet-15, liquid inlet-16, tower body-2, air outlet pipe-21, flange assembly-22, sensor interface-23, tower internal assembly-3, packing-31, distributor-32, cyclone-33, demister-34, structured packing-311, wire mesh packing-312. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] like Figure 1 As shown, this embodiment provides a high-efficiency MEA regeneration tower, which is installed in a natural gas wellhead transportation device containing carbon dioxide and hydrogen sulfide. The regeneration tower includes: a heater 1, a tower body 2, and a tower internal component 3.

[0025] Specifically, the heater 1 is arranged horizontally, the tower body 2 is vertically arranged on the heater 1, and the axis of the heater 1 and the axis of the tower body 2 are perpendicular to each other. An air outlet pipe 21 is arranged on the top of the tower body 2, and the air outlet pipe 21 is connected to the top of the tower body 2 through a flange assembly 22 to facilitate disassembly and maintenance.

[0026] like Figure 1-Figure 3 As shown, the tower internal component 3 is arranged in the tower body 2 along the axis of the tower body 2, and the tower internal component 3 includes a packing 31, a group of distributors 32, a group of cyclones 33, and a demister 34. The three groups of packing 31 are arranged in an array between a group of distributors 32, and a group of cyclones 33 are respectively arranged on one side of a group of distributors 32 away from the packing 31. The packing 33 and the cyclone 33 are respectively connected to the tower body 2 through supporting members. The demister 34 is arranged at the upper end of the tower body 2 and has a predetermined distance from the flange component 22, which is used to eliminate the mist inside the steam and reduce the water content of the gas.

[0027] Specifically, a plurality of heating tubes 11 are arranged inside the heater 1 , and the heating tubes 11 are arranged along the length direction of the heater 1 .

[0028] Specifically, the packing 31 includes two spaced regular plate packings 311 and three wire mesh packings 312, so that the two regular plate packings 311 are respectively arranged between the adjacent wire mesh packings 312. The acid gas is effectively flashed and separated from the gas through the annular space of the cyclone 33 and the regular packing 312. A backwashing process is set for high-pressure operation. The cyclone 33 includes a plurality of fan-shaped blades arranged in a circumferential array. When the pressure difference between the cyclone 33 and the tower body 2 is 0.5MPa to 1.0MPa, the MEA regeneration tower flushing process is run, and the backwashing valve is opened to flush with high-pressure natural gas. After the natural gas flushing is completed, the impurities and water mixture deposited at the bottom of the heater are flushed with clean water after the pressure is released through the venting pipeline, and then discharged from the MEA regeneration tower through the sewage outlet; ensure that impurities are not deposited at the bottom of the MEA regeneration tower.

[0029] Specifically, the heater 1 is provided with a temperature sensor 12, a liquid level sensor 13, a pressure sensor 14, a sewage outlet 15, and a liquid inlet 16, so that the MEA rich liquid enters the heater 1 from the liquid inlet 16, is heated by the heater 1 to flash out steam, and then enters the tower body 2, is filtered by the tower internal component 3 in the tower body 2, and the gas is separated, and the gas is discharged through the gas outlet pipe 21 at the top of the tower body 2.

[0030] Specifically, a sensor interface 23 is provided on the outer wall of the tower body 2, and the total height of the tower body 2 and the heater 1 does not exceed 3 meters, so as to facilitate the equipment to be skidded and transported.

[0031] Specifically, the heater is heated by a regenerative heat source, such as electric heating, steam, or thermal oil.

[0032] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A high-efficiency MEA regeneration tower, installed in a natural gas import and delivery device, characterized in that: include: The heater (1) is arranged transversely and includes a liquid inlet (16); A tower body (2) is vertically arranged at one end of the heater (1), and an air outlet pipe (21) is provided at the top of the tower body (2); An in-tower component (3) is arranged in a tower body (2), comprising a filler (31), distributors (32) are respectively provided at both ends of the filler (31), a cyclone (33) is provided on a side of the distributor (32) away from the filler (31), a demister (34) is provided on a side of the cyclone (33) at the upper end away from the distributor (32), and support members are respectively provided on the filler (31) and the cyclone (33) for connecting to the tower body (2).

2. The high-efficiency MEA regeneration tower according to claim 1, characterized in that: A plurality of heating tubes (11) are arranged inside the heater (1), and the heating tubes (11) are arranged along the length direction of the heater (1).

3. The high-efficiency MEA regeneration tower according to claim 1, characterized in that: A flange assembly (22) is provided at the top of the tower body (2) for connecting the air outlet pipe (21) and the upper end of the tower body (2).

4. The high-efficiency MEA regeneration tower according to claim 1, characterized in that: The packing (31) comprises two structured packings (311) arranged at intervals and three wire mesh packings (312) arranged at intervals, and the two structured packings (311) are respectively arranged between two adjacent wire mesh packings (312) of the three wire mesh packings (312).

5. The high-efficiency MEA regeneration tower according to claim 1, characterized in that: The heater (1) is provided with a temperature sensor (12), a liquid level sensor (13), a pressure sensor (14), and a sewage outlet (15).

6. The high-efficiency MEA regeneration tower according to claim 5, characterized in that: A sensor interface (23) is provided on the outer wall of the tower body (2).

7. The high-efficiency MEA regeneration tower according to claim 1, characterized in that: The total height of the heater (1) and the tower body (2) does not exceed 3 meters.

8. The high-efficiency MEA regeneration tower according to claim 1, characterized in that: The heater (1) uses a regenerative heat source.

9. The high-efficiency MEA regeneration tower according to claim 1, characterized in that: The swirler (33) comprises a plurality of fan-shaped blades arranged in a circumferential array.

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