Amine desulfurization device

Abstract

The utility model relates to the technical field of amine desulfurization equipment, in particular to an amine desulfurization device, which comprises a desulfurization tank, a feeding pipe, a spraying component, a liquid injection component and a feeding pipe communicated with the inside of the desulfurization tank, the spraying assembly is arranged in the desulfurization tank, the spraying assembly comprises a driving part, the driving part is arranged in the desulfurization tank, and a spraying part is arranged in the desulfurization tank; the liquid injection assembly is arranged on one side of the desulfurization tank; the partial desulfurization device solves the problems that the desulfurization efficiency is influenced and the production cost is increased due to the fact that sufficient contact between gas and an amine solution is inconvenient to control when sulfur-containing gas is conveyed into the amine solution to perform desulfurization operation in an existing partial desulfurization device.

Description

Technical Field

[0001] The utility model relates to the technical field of amine desulfurization equipment, in particular to an amine desulfurization device. Background Art

[0002] With the rapid development of the petroleum and petrochemical industries, the processing volume of sulfur-containing crude oil and natural gas has gradually increased. Under the demand of environmental protection and market, the sulfur content of petrochemical products is required to be higher and higher, and desulfurization treatment is required. Amine desulfurization is a commonly used desulfurization method.

[0003] Amine desulfurization is mainly suitable for treating high-concentration acidic gases. Some existing desulfurization devices carry out desulfurization operations by transporting sulfur-containing gases into amine solutions. This is not convenient for controlling the full contact between the gas and the amine solution, which affects the desulfurization efficiency and increases production costs. Utility Model Content

[0004] The purpose of the utility model is to provide an amine desulfurization device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an amine desulfurization device, comprising a desulfurization tank, a feed pipe, a spray assembly and a liquid injection assembly, wherein the feed pipe is connected to the inside of the desulfurization tank; the spray assembly is arranged inside the desulfurization tank, the spray assembly includes a driving component, the driving component is arranged inside the desulfurization tank, and the inside of the desulfurization tank is provided with a spray component; and the liquid injection assembly is arranged on one side of the desulfurization tank.

[0006] Preferably, the driving member comprises a liquid outlet pipe connected to the interior of the desulfurization tank, one end of the liquid outlet pipe is connected to a first water pump, and a water outlet of the first water pump is connected to a liquid inlet pipe.

[0007] Preferably, the spray component comprises a first connecting pipe and a second connecting pipe respectively connected to the inside of the liquid inlet pipe, and the inside of the first connecting pipe is connected to the spray head.

[0008] Preferably, the liquid injection assembly includes a connecting piece arranged on one side of the desulfurization tank, and a control piece is arranged on the outer side of the connecting piece.

[0009] Preferably, the connecting piece includes an injection pipe connected to the interior of the desulfurization tank, one end of the injection pipe is connected to a second water pump, a water outlet of the second water pump is connected to a first delivery pipe, and one end of the first delivery pipe is connected to a liquid storage tank.

[0010] Preferably, the liquid storage tank includes a transparent window arranged on the outside, and a cover plate is arranged on the top of the liquid storage tank.

[0011] Preferably, the desulfurization tank includes a second delivery pipe connected to the interior, and one end of the second delivery pipe is connected to the regeneration tank.

[0012] Preferably, the regeneration tank includes a third delivery pipe connected to the interior, a support frame is provided on the outer side of the third delivery pipe, and one end of the third delivery pipe is connected to the interior of the liquid storage tank.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model transports the amine solution through the first water pump, the liquid outlet pipe and the liquid inlet pipe, and sprays it under the action of the first connecting pipe, the second connecting pipe and the nozzle, which is beneficial to increase the contact area between the sulfur-containing gas and the amine solution, improve the reaction rate, and thus improve the desulfurization efficiency. Under the action of the second water pump, the liquid storage tank and the liquid injection pipe, it is convenient to replenish the amine solution in the desulfurization tank, and there is no need to open the desulfurization tank for liquid replenishment operation, thereby avoiding leakage of residual gas. Under the action of the second delivery pipe and the regeneration tank, the rich liquid in the desulfurization tank is transported and processed, and the treated lean liquid is transported to the liquid storage tank for storage under the action of the third delivery pipe, thereby promoting resource recycling, reducing the replenishment amount of fresh amine solution, and reducing production and processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of the amine desulfurization device provided by the utility model;

[0016] Figure 2 A schematic diagram of the structure of the spray assembly provided by the utility model;

[0017] Figure 3 A schematic diagram of the structure of the liquid injection assembly provided by the utility model;

[0018] Figure 4 This is a schematic structural diagram of the regeneration tank and the third delivery pipe provided by the utility model.

[0019] In the figure: 1. desulfurization tank; 2. feed pipe; 3. spray assembly; 31. drive member; 311. liquid outlet pipe; 312. first water pump; 313. liquid inlet pipe; 32. spray member; 321. first connecting pipe; 322. nozzle; 323. second connecting pipe; 4. liquid injection assembly; 41. connecting member; 411. liquid injection pipe; 412. second water pump; 413. first delivery pipe; 414. liquid storage tank; 42. control member; 421. transparent window; 422. cover plate; 5. second delivery pipe; 6. regeneration tank; 7. third delivery pipe; 8. support frame. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-4 As shown, an amine desulfurization device comprises a desulfurization tank 1, a feed pipe 2, a spraying assembly 3 and a liquid injection assembly 4, wherein the feed pipe 2 is connected to the inside of the desulfurization tank 1;

[0022] refer to Figure 1 and Figure 2 As shown, a spray assembly 3 is arranged inside the desulfurization tank 1, and the spray assembly 3 includes a driving member 31. The driving member 31 is arranged inside the desulfurization tank 1, and a spray member 32 is arranged inside the desulfurization tank 1.

[0023] The driving member 31 includes a liquid outlet pipe 311 connected to the interior of the desulfurization tank 1 , one end of the liquid outlet pipe 311 is connected to a first water pump 312 , and a water outlet of the first water pump 312 is connected to a liquid inlet pipe 313 .

[0024] The spraying member 32 includes a first connecting pipe 321 and a second connecting pipe 323 which are respectively connected to the inside of the liquid inlet pipe 313 . The inside of the first connecting pipe 321 is connected to the spray head 322 .

[0025] The first connecting pipe 321, the second connecting pipe 323 and the liquid inlet pipe 313 are all connected with a nozzle 322. The desulfurization tank 1 is filled with an amine solution. Driven by the first water pump 312, the amine solution is transported to the liquid inlet pipe 313 through the liquid outlet pipe 311. Under the action of the liquid inlet pipe 313, the amine solution is transported to the first connecting pipe 321 and the second connecting pipe 323 respectively, and sprayed through the nozzle 322, which is beneficial to increase the contact area between the sulfur-containing gas and the amine solution, so that the gas and the amine solution are fully mixed, the reaction rate is improved, and the processing cost is reduced.

[0026] refer to Figure 1 , Figure 3 and Figure 4 As shown, a liquid injection assembly 4 is arranged on one side of the desulfurization tank 1.

[0027] The liquid injection assembly 4 includes a connecting piece 41 arranged at one side of the desulfurization tank 1 , and a control piece 42 is arranged outside the connecting piece 41 .

[0028] The connecting piece 41 includes an injection pipe 411 connected to the interior of the desulfurization tank 1 , one end of the injection pipe 411 is connected to a second water pump 412 , the water outlet of the second water pump 412 is connected to a first delivery pipe 413 , and one end of the first delivery pipe 413 is connected to a liquid storage tank 414 .

[0029] The liquid storage tank 414 includes a transparent window 421 disposed on the outside, and a cover plate 422 is disposed on the top of the liquid storage tank 414 .

[0030] The desulfurization tank 1 includes a second delivery pipe 5 connected to the inside, and one end of the second delivery pipe 5 is connected to a regeneration tank 6 .

[0031] The regeneration tank 6 includes a third delivery pipe 7 connected to the inside, a support frame 8 is provided on the outside of the third delivery pipe 7 , and one end of the third delivery pipe 7 is connected to the inside of the liquid storage tank 414 .

[0032] Driven by the second water pump 412, the amine solution in the liquid storage tank 414 is transported to the injection pipe 411 through the first delivery pipe 413, and is injected into the desulfurization tank 1 through the injection pipe 411 to replenish the solvent in the desulfurization tank 1. There is no need to open the desulfurization tank 1 for liquid replenishment. The water level of the amine solution in the liquid storage tank 414 is convenient to observe through the transparent window 421, and the opening and closing of the control cover 422 is convenient for timely addition. Under the action of the second delivery pipe 5, the rich liquid in the desulfurization tank 1 is conveniently transported to the regeneration tank 6 for regeneration treatment. The treated lean liquid is transported to the liquid storage tank 414 under the action of the third delivery pipe 7, which is convenient for recycling and full utilization of resources.

[0033] Working principle: When in use, the sulfur-containing gas is transported to the desulfurization tank 1 through the feed pipe 2. Driven by the first water pump 312, the amine solution in the desulfurization tank 1 is transported to the inlet pipe 313, the first connecting pipe 321 and the second connecting pipe 323 through the liquid outlet pipe 311, and sprayed out through the nozzle 322, which effectively increases the contact reaction area between the gas and the amine solution, improves the reaction rate, and thus improves the desulfurization efficiency and reduces the processing cost. Under the action of the second water pump 412, the amine solution in the liquid storage tank 414 is conveniently injected into the desulfurization tank 1 through the first delivery pipe 413 and the injection pipe 411. There is no need to open the desulfurization tank 1 for solvent replenishment, which avoids leakage of residual gas in the desulfurization tank 1 and enhances practicality. The rich liquid that fully absorbs sulfide is transported to the regeneration tank 6 for heating and regeneration treatment through the second delivery pipe 5. The lean liquid after acid gas removal is transported to the liquid storage tank 414 through the third delivery pipe 7 for storage, which reduces the amount of fresh amine solution replenished, facilitates recycling, and reduces production costs.

[0034] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An amine desulfurization device, comprising a desulfurization tank (1), characterized in that: Also includes: A feed pipe (2) connected to the interior of the desulfurization tank (1); A spray assembly (3) arranged inside the desulfurization tank (1), the spray assembly (3) comprising a driving member (31), the driving member (31) being arranged inside the desulfurization tank (1), the driving member (31) comprising a liquid outlet pipe (311) connected to the inside of the desulfurization tank (1), one end of the liquid outlet pipe (311) being connected to a first water pump (312), the water outlet of the first water pump (312) being connected to a liquid inlet pipe (313), a spray member (32) being arranged inside the desulfurization tank (1), the spray member (32) comprising a first connecting pipe (321) and a second connecting pipe (323) respectively connected to the inside of the liquid inlet pipe (313), the inside of the first connecting pipe (321) being connected to a spray head (322); A liquid injection assembly (4) is arranged on one side of the desulfurization tank (1), the liquid injection assembly (4) comprises a connecting piece (41) arranged on one side of the desulfurization tank (1), a control piece (42) is arranged on the outside of the connecting piece (41), the connecting piece (41) comprises a liquid injection pipe (411) connected to the inside of the desulfurization tank (1), one end of the liquid injection pipe (411) is connected to a second water pump (412), the water outlet of the second water pump (412) is connected to a first delivery pipe (413), one end of the first delivery pipe (413) is connected to a storage tank (411), and the second water pump (412) is connected to a first delivery pipe (413). A liquid tank (414), wherein the liquid storage tank (414) comprises a transparent window (421) arranged on the outside, a cover plate (422) is arranged on the top of the liquid storage tank (414), the desulfurization tank (1) comprises a second delivery pipe (5) connected to the inside, one end of the second delivery pipe (5) is connected to a regeneration tank (6), the regeneration tank (6) comprises a third delivery pipe (7) connected to the inside, a support frame (8) is arranged on the outside of the third delivery pipe (7), and one end of the third delivery pipe (7) is connected to the inside of the liquid storage tank (414).

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