Desulfurization extraction tower device for liquefied petroleum gas production

Abstract

The utility model discloses a desulfurization extraction tower device for liquefied petroleum gas production, which comprises a tower body, a first desulfurization layer plate and a second desulfurization layer plate are respectively arranged at the upper part and the lower part in the tower body, and an extraction pipe is arranged in one side of the tower body. According to the liquefied petroleum gas desulfurization tower disclosed by the utility model, through the arrangement of the first desulfurization layer plate and the second desulfurization layer plate, the liquefied petroleum gas in the tower body can be sequentially reacted during desulfurization, so that the desulfurization output performance of the liquefied petroleum gas at different degrees can be improved; by arranging a main extraction pump, a first auxiliary extraction pump and a second auxiliary extraction pump, liquefied petroleum gas with different degrees in the tower body can be subjected to desulfurization reaction through an extraction pipe, and then the liquefied petroleum gas sequentially passes through the main extraction pump, the first auxiliary extraction pump, the second auxiliary extraction pump and an output pipe to provide an output effect; and any output pipe can be sealed or communicated by using the flange.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquefied petroleum gas, and in particular relates to a desulfurization extraction tower device for liquefied petroleum gas production. Background Art

[0002] Liquefied petroleum gas is a colorless volatile liquid obtained by pressurizing and cooling natural gas or petroleum to liquefy it in an oil refinery. The main components of liquefied petroleum gas obtained from an oil refinery are one or two of propane, propylene, butane and butene, and it is also mixed with a small amount of pentane, pentene and trace amounts of sulfide impurities.

[0003] When desulfurizing liquefied petroleum gas to different degrees within the current extraction tower device, it is necessary to wait for the gradual desulfurization reaction of the liquefied petroleum gas, resulting in insufficient output for desulfurization of liquefied petroleum gas to various degrees. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a desulfurization extraction tower device for liquefied petroleum gas production to solve the problem mentioned in the above background technology that when the liquefied petroleum gas is desulfurized to different degrees inside the current extraction tower device, it is necessary to wait for the gradual desulfurization reaction of the liquefied petroleum gas, resulting in insufficient desulfurization output of liquefied petroleum gas of various degrees.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization extraction tower device for liquefied petroleum gas production, comprising a tower body, wherein a first desulfurization layer plate and a second desulfurization layer plate are respectively arranged on the upper and lower parts of the tower body, an extraction pipe is arranged inside one side of the tower body, a main extraction pump, a first auxiliary extraction pump and a second auxiliary extraction pump are respectively arranged on the outer ends of the extraction pipe, a connecting pipe is arranged at the bottom and the top of the first auxiliary extraction pump, an output pipe is arranged at the outer ends of the main extraction pump, the first auxiliary extraction pump and the second auxiliary extraction pump, a flange is arranged at the top of the output pipe, a supporting base is arranged at the bottom of the main extraction pump, desulfurization spray boxes are arranged on both sides of the top of the tower body, a desulfurization spray pipe is arranged on the inner side of the desulfurization spray box, a feed pipe is arranged at the top of the tower body, and a support platform is arranged at the bottom of the tower body.

[0006] Preferably, the upper and lower parts of the tower body are in contact and fixedly connected with the first desulfurization layer plate and the second desulfurization layer plate respectively, and spaces of different heights are formed inside the tower body through the first desulfurization layer plate and the second desulfurization layer plate.

[0007] Preferably, three extraction pipes are provided, and the three extraction pipes are all fixedly connected to the spaces at different heights inside one side of the tower body, and one side of the main extraction pump, the first auxiliary extraction pump and the second auxiliary extraction pump are all fixedly connected to the outer ends of the extraction pipes.

[0008] Preferably, the bottom and the top of the first auxiliary extraction pump are connected to the main extraction pump and the second auxiliary extraction pump respectively through connecting pipes.

[0009] Preferably, three output pipes and flanges are provided, the three output pipes are fixedly connected to the outer ends of the main extraction pump, the first auxiliary extraction pump and the second auxiliary extraction pump, and the three flanges are connected to the top flange of the output pipe.

[0010] Preferably, the support base is in contact and connection with the bottom support of the main extraction pump, and the support platform is in contact and connection with the bottom support of the tower body.

[0011] Preferably, two desulfurization spray boxes and two desulfurization spray pipes are provided, and the two desulfurization spray boxes are fixedly connected to the top of the main extraction pump on both sides. The two desulfurization spray boxes are connected to the desulfurization spray pipe, and the two desulfurization spray pipes are connected to the inside of the tower body on both sides of the top.

[0012] Preferably, the feed pipe is fixedly connected to the top of the tower body.

[0013] Compared with the prior art, the utility model provides a desulfurization extraction tower device for liquefied petroleum gas production, which has the following beneficial effects:

[0014] 1. The utility model can sequentially react the liquefied petroleum gas in the tower body during desulfurization by means of the first desulfurization layer plate and the second desulfurization layer plate, thereby improving the desulfurization output of the liquefied petroleum gas to different degrees. Then, the utility model can sequentially provide the output effect by means of the main extraction pump, the first auxiliary extraction pump, the second auxiliary extraction pump and the output pipe after the liquefied petroleum gas desulfurization reaction to different degrees in the tower body through the extraction pipe, and any output pipe can be sealed or connected by means of the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a desulfurization extraction tower device for liquefied petroleum gas production proposed by the utility model;

[0017] Figure 2 This is a front view of a desulfurization extraction tower device for liquefied petroleum gas production proposed by the utility model;

[0018] Figure 3 This is a structural cross-sectional view of a desulfurization extraction tower device for liquefied petroleum gas production proposed by the utility model;

[0019] Figure 4It is a side view of the desulfurization extraction tower device for liquefied petroleum gas production proposed by the utility model;

[0020] In the figure: 1. tower body; 2. feed pipe; 3. support platform; 4. support base; 5. desulfurization spray box; 6. main extraction pump; 7. first auxiliary extraction pump; 8. second auxiliary extraction pump; 9. extraction pipe; 10. connecting pipe; 11. output pipe; 12. flange; 13. first desulfurization layer; 14. second desulfurization layer; 15. desulfurization nozzle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a desulfurization extraction tower device for liquefied petroleum gas production, including a tower body 1, wherein a first desulfurization layer plate 13 and a second desulfurization layer plate 14 are respectively arranged above and below the tower body 1. By arranging the first desulfurization layer plate 13 and the second desulfurization layer plate 14, the liquefied petroleum gas inside the tower body 1 can be reacted in sequence when being desulfurized, and the desulfurization output of the liquefied petroleum gas can be improved to different degrees. An extraction pipe 9 is arranged inside one side of the tower body 1, and a main extraction pump 6, a first auxiliary extraction pump 7 and a second auxiliary extraction pump 8 are respectively arranged at the outer ends of the extraction pipe 9. By arranging the main extraction pump 6, the first auxiliary extraction pump 7 and the second auxiliary extraction pump 8, the liquefied petroleum gas inside the tower body 1 can be desulfurized through the extraction pipe 9. After different degrees of liquefied petroleum gas desulfurization reaction, the main extraction pump 6, the first auxiliary extraction pump 7, the second auxiliary extraction pump 8 and the output pipe 11 are used to provide output effects in turn. The first auxiliary extraction pump 7 is provided with a connecting pipe 10 at the bottom and the top. The main extraction pump 6, the first auxiliary extraction pump 7 and the second auxiliary extraction pump 8 are provided with an output pipe 11 at the outer ends. A flange 12 is provided on the top of the output pipe 11. By providing the flange 12, any output pipe 11 can be sealed or connected. A supporting base 4 is provided at the bottom of the main extraction pump 6, and desulfurization spray boxes 5 are provided on both sides of the top of the tower body 1. A desulfurization spray pipe 15 is provided on the inner side of the desulfurization spray box 5. A feed pipe 2 is provided on the top of the tower body 1, and a support platform 3 is provided at the bottom of the tower body 1.

[0023] In the utility model, preferably, the upper and lower parts of the tower body 1 are in contact and fixedly connected with the first desulfurization layer plate 13 and the second desulfurization layer plate 14 respectively, and the first desulfurization layer plate 13 and the second desulfurization layer plate 14 form spaces of different heights inside the tower body 1. By providing the first desulfurization layer plate 13 and the second desulfurization layer plate 14, the liquefied petroleum gas inside the tower body 1 can react in sequence during desulfurization, thereby improving the desulfurization output of the liquefied petroleum gas to different degrees.

[0024] In the utility model, preferably, three extraction pipes 9 are provided, and the three extraction pipes 9 are all fixedly connected with the internal space of one side of the tower body 1 at different heights, and one side of the main extraction pump 6, the first auxiliary extraction pump 7 and the second auxiliary extraction pump 8 are all fixedly connected with the outer end of the extraction pipe 9. By providing the main extraction pump 6, the first auxiliary extraction pump 7 and the second auxiliary extraction pump 8, the liquefied petroleum gas in the tower body 1 can be desulfurized to different degrees through the extraction pipe 9, and then the output effect is provided in sequence through the main extraction pump 6, the first auxiliary extraction pump 7, the second auxiliary extraction pump 8 and the output pipe 11.

[0025] In the present invention, preferably, the bottom and the top of the first auxiliary extraction pump 7 are connected to the main extraction pump 6 and the second auxiliary extraction pump 8 respectively through the connecting pipe 10.

[0026] In the utility model, preferably, three output pipes 11 and flanges 12 are provided, the three output pipes 11 are fixedly connected to the outer ends of the main extraction pump 6, the first auxiliary extraction pump 7 and the second auxiliary extraction pump 8, and the three flanges 12 are connected to the top flange of the output pipe 11. By providing the flange 12, any output pipe 11 can be sealed or connected.

[0027] In the present invention, preferably, the support base 4 is connected to the bottom support of the main extraction pump 6 in contact with each other, and the support platform 3 is connected to the bottom support of the tower body 1 in contact with each other.

[0028] In the present invention, preferably, two desulfurization spray boxes 5 and two desulfurization spray pipes 15 are provided, and the two desulfurization spray boxes 5 are fixedly contacted and connected with both sides of the top of the main extraction pump 6. The two desulfurization spray boxes 5 are connected to the desulfurization spray pipes 15, and the two desulfurization spray pipes 15 are connected to the inside of the two sides of the top of the tower body 1.

[0029] In the utility model, preferably, the feed pipe 2 is fixedly connected to the top of the tower body 1 .

[0030] The working principle and use process of the utility model are as follows: when in use, when desulfurizing liquefied petroleum gas, the liquefied petroleum gas can enter the tower body 1 through the feed pipe 2, and the desulfurization spray boxes 5 and the desulfurization nozzles 15 on both sides can continuously contact the petroleum gas for desulfurization when spraying the desulfurization solvent at the same time. When desulfurizing, the liquefied petroleum gas will pass through the first desulfurization layer plate 13 and the second desulfurization layer plate 14 in sequence, and after the main extraction pump 6 is operated, the desulfurized liquefied petroleum gas can be output and transmitted through the extraction pipe 9 and the output pipe 11 on one side, and the semi-desulfurized liquefied petroleum gas can be output and transmitted by the first auxiliary extraction pump 7 and the second auxiliary extraction pump 8 and the extraction pipes 9 and the output pipes 11 on both sides, and the preliminarily desulfurized liquefied petroleum gas can be output and transmitted through the first auxiliary extraction pump 7 and the second auxiliary extraction pump 8 and the extraction pipes 9 and the output pipes 11 on both sides, so as to improve the diversified extraction and output of liquefied petroleum gas with different desulfurization effects.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization extraction tower device for liquefied petroleum gas production, comprising a tower body (1), characterized in that: A first desulfurization layer plate (13) and a second desulfurization layer plate (14) are respectively arranged at the top and bottom of the tower body (1); an extraction pipe (9) is arranged inside one side of the tower body (1); a main extraction pump (6), a first auxiliary extraction pump (7) and a second auxiliary extraction pump (8) are respectively arranged at the outer ends of the extraction pipe (9); a connecting pipe (10) is arranged at the bottom and top of the first auxiliary extraction pump (7); an output pipe (11) is arranged at the outer ends of the main extraction pump (6), the first auxiliary extraction pump (7) and the second auxiliary extraction pump (8); a flange (12) is arranged at the top of the output pipe (11); a support base (4) is arranged at the bottom of the main extraction pump (6); desulfurization spray boxes (5) are arranged on both sides of the top of the tower body (1); a desulfurization spray pipe (15) is arranged inside the desulfurization spray box (5); a feed pipe (2) is arranged at the top of the tower body (1); and a support platform (3) is arranged at the bottom of the tower body (1).

2. A desulfurization extraction tower device for liquefied petroleum gas production according to claim 1, characterized in that: The upper and lower parts of the tower body (1) are respectively in contact and fixed connection with the first desulfurization layer (13) and the second desulfurization layer (14), and spaces of different heights are formed inside the tower body (1) through the first desulfurization layer (13) and the second desulfurization layer (14).

3. A desulfurization extraction tower device for liquefied petroleum gas production according to claim 1, characterized in that: Three extraction pipes (9) are provided, and the three extraction pipes (9) are all fixedly connected to spaces at different heights inside one side of the tower body (1), and one side of the main extraction pump (6), the first auxiliary extraction pump (7), and the second auxiliary extraction pump (8) are all fixedly connected to the outer end of the extraction pipe (9).

4. A desulfurization extraction tower device for liquefied petroleum gas production according to claim 1, characterized in that: The bottom and top of the first auxiliary extraction pump (7) are respectively connected to the main extraction pump (6) and the second auxiliary extraction pump (8) through connecting pipes (10).

5. A desulfurization extraction tower device for liquefied petroleum gas production according to claim 1, characterized in that: The output pipes (11) and flanges (12) are provided in three numbers, the three output pipes (11) are fixedly connected to the outer ends of the main extraction pump (6), the first auxiliary extraction pump (7) and the second auxiliary extraction pump (8), and the three flanges (12) are connected to the top flange of the output pipe (11).

6. A desulfurization extraction tower device for liquefied petroleum gas production according to claim 1, characterized in that: The support base (4) is in contact with and connected to the bottom support of the main extraction pump (6), and the support platform (3) is in contact with and connected to the bottom support of the tower body (1).

7. A desulfurization extraction tower device for liquefied petroleum gas production according to claim 1, characterized in that: The desulfurization spray box (5) and the desulfurization nozzle (15) are provided with two, the two desulfurization spray boxes (5) are fixedly contacted and connected with the top of the main extraction pump (6) on both sides, the two desulfurization spray boxes (5) are connected to the desulfurization nozzle (15), and the two desulfurization nozzles (15) are connected to the inside of the tower body (1) on both sides of the top.

8. A desulfurization extraction tower device for liquefied petroleum gas production according to claim 1, characterized in that: The feed pipe (2) is fixedly connected to the top of the tower body (1).

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