CN212610439U

CN212610439U - Novel debenzolization tower

Info

Publication number: CN212610439U
Application number: CN202021280357.7U
Authority: CN
Inventors: 赵红洲; 黄长胜; 马学成
Original assignee: Shandong Tiexiong Xinsha Energy Co ltd
Current assignee: Shandong Tiexiong Xinsha Energy Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2021-02-26
Anticipated expiration: 2030-07-02

Abstract

The utility model relates to a novel debenzolization tower, which comprises a debenzolization stripping layer, wherein the bottom of one side of the debenzolization stripping layer is connected with an oil outlet, the other side of the debenzolization stripping layer is connected with a crude benzene discharge port, the crude benzene discharge port is connected with a water pump through a pipeline, the other end of the water pump is connected with a crude benzene reflux port, the inner cavity of the debenzolization stripping layer is provided with a stripping packing layer, a rectification packing layer is arranged above the stripping packing layer, the top of the debenzolization stripping layer is fixedly connected with an oil-water separation section, the utility model discloses a heat exchange device is arranged, crude benzene in the connecting pipe is heated through the heat exchange device at the position where the crude benzene reflux flows through the connecting pipe, steam condensation can be prevented, the oil-water separation effect is improved, the steam in the connecting pipe is heated through the reflux pipe, and then the crude benzene is heated through the heat exchange device, because the steam has heat, the energy can be saved during heating, and the waste of resources is reduced.

Description

Novel debenzolization tower

Technical Field

The utility model relates to a novel debenzolization tower belongs to environmental protection equipment technical field.

Background

The debenzolization tower belongs to a desorption tower, is operating equipment for evaporating and releasing benzene hydrocarbon dissolved in an oil washing solvent through direct contact heat transfer of a heat carrier, and has the following operation principle: the method is characterized in that ordinary heat carrier superheated steam is selected as a heating agent, so that the equilibrium steam pressure of crude benzene on the liquid surface of washing oil is larger than the partial pressure of the crude benzene in a carrier, and a steam-liquid two-phase countercurrent contact is carried out to carry out mass transfer and heat transfer, so that the crude benzene is gradually released from rich oil, a mixture of benzene steam and steam is obtained at the tower top, relatively pure lean oil is obtained at the tower bottom, but the steam can be condensed before entering the tower top, the crude benzene extraction yield is reduced, and meanwhile, the crude benzene needs to be subjected to oil-water separation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel debenzolization tower, through being equipped with heat transfer device, heat transfer device department at the crude benzol backward flow connection pipe of flowing through, heat transfer device heats the crude benzol in the connection pipe, can prevent the steam condensation, improve oil water separation's effect, through being equipped with the back flow, let in heat transfer device after heating the steam of back flow pipe through the heater, utilize steam to heat crude benzol, because steam has the heat, so can the energy saving when heating, reduce the waste of resource, in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a novel debenzolization tower, includes debenzolization stripping layer, one side bottom on debenzolization stripping layer is connected with the oil-out, the opposite side on debenzolization stripping layer is connected with crude benzene discharge gate, crude benzene discharge gate has the water pump through the pipe connection, the other end of water pump is connected with crude benzene backward flow mouth, the inner chamber on debenzolization stripping layer is equipped with the stripping packing layer, the top of stripping packing layer is equipped with the rectification packing layer, the top fixedly connected with water oil separating section on debenzolization stripping layer, one side inner wall that crude benzene backward flow mouth runs through water oil separating section is connected with oil water separator, oil water separator establishes at oil water separating section inner chamber, oil water separator's the other end is connected with the outlet, outlet 10 is established in oil water separating section 8's the outside, oil water separating section's top is connected with the gas phase export.

Further, the crude benzol discharge gate is established in one side of rectification packing layer, be equipped with flow control valve between crude benzol discharge gate and the water pump.

Furthermore, one side of the debenzolization stripping layer is provided with an oil-rich inlet, and the other side of the debenzolization stripping layer is provided with a circulating hot oil port.

Further, oil-water separator includes connecting pipe, heat transfer device, oil-water separator, back flow, heater and steam outlet, the crude benzol backward flow mouth is connected with the one end of connecting pipe, the laminating of heat transfer device is in the outside of connecting pipe, the other end and the oil-water separator of connecting pipe are connected, oil-water separator's exit and outlet connection.

Furthermore, one end of the return pipe is arranged at the top of the oil-water separator, the heater is arranged on the return pipe, and the other end of the return pipe is connected with the heat exchange device.

Furthermore, a circulating pipeline is arranged in the heat exchange device, one end of the circulating pipeline is connected with the return pipe, the other end of the circulating pipeline is connected with the steam outlet, and the steam outlet is communicated with the gas phase outlet.

The utility model has the advantages that:

1. by arranging the heat exchange device, the crude benzene in the connecting pipe is heated at the heat exchange device where the crude benzene reflux flows through the connecting pipe, so that steam condensation can be prevented, and the oil-water separation effect is improved;

2. through being equipped with the back flow, let in heat transfer device after with the steam heating of back flow in through the heater, utilize steam to heat crude benzol, because steam has the heat, so can the energy saving when the heating, reduce the waste of resource.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic view of the overall structure of a novel debenzolization tower of the present invention;

FIG. 2 is a schematic view of the internal structure of a novel debenzolization tower of the present invention;

FIG. 3 is a schematic structural view of an oil-water separator of the novel debenzolization tower of the present invention;

FIG. 4 is a schematic structural view of a heat exchange device of a novel debenzolization tower of the present invention;

reference numbers in the figures: 1. a debenzolization stripping layer; 2. an oil outlet; 3. discharging a crude benzene outlet; 4. a water pump; 5. a crude benzene reflux port; 6. a stripping packing layer; 7. a rectification packing layer; 8. an oil-water separation section; 9. an oil-water separation device; 10. a water outlet; 11. a gas phase outlet; 12. a connecting pipe; 13. a heat exchange device; 14. an oil-water separator; 15. a return pipe; 16. a heater; 17. a steam outlet; 18. a circulation pipeline.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a novel debenzolization tower comprises a debenzolization stripping layer 1, wherein an oil outlet 2 is connected to the bottom of one side of the debenzolization stripping layer 1 and used for discharging purified lean oil, the other side of the debenzolization stripping layer 1 is connected with a crude benzene discharge port 3, the crude benzene discharge port 3 is connected with a water pump 4 through a pipeline, the other end of the water pump 4 is connected with a crude benzene reflux port 5, crude benzene is introduced to the crude benzene reflux port 5 through the water pump 4, a stripping packing layer 6 is arranged in the inner cavity of the debenzolization stripping layer 1, a rectification packing layer 7 is arranged above the stripping packing layer 6 and can separate crude benzene on an oil washing liquid level, an oil-water separation section 8 is fixedly connected to the top of the debenzolization stripping layer 1, an oil-water separation device 9 is connected to the inner wall of one side of the crude benzene reflux port 5, which penetrates through the oil-water separation section 8, the oil-water separation device 9 is arranged in the inner cavity of the oil, the other end of the oil-water separation device 9 is connected with a water outlet 10, the water outlet 10 is arranged on the outer side of the oil-water separation section 8 and can facilitate water drainage, and the top of the oil-water separation section 8 is connected with a gas phase outlet 11.

Specifically, as shown in fig. 1 and 2, the crude benzene discharge port 3 is arranged on one side of the rectification packing layer 7, a flow control valve is arranged between the crude benzene discharge port 3 and the water pump 4 to control the discharge speed of the crude benzene, an oil-rich inlet is arranged on one side of the debenzolization stripping layer 1, and a circulating hot oil port is arranged on the other side of the debenzolization stripping layer 1.

Specifically, as shown in fig. 3, the oil-water separator 9 includes a connecting pipe 12, a heat exchanger 13, an oil-water separator 14, a return pipe 15, a heater 16, and a steam outlet 17, the crude benzene return port 5 is connected to one end of the connecting pipe 12, the heat exchanger 13 is attached to the outer side of the connecting pipe 12, the crude benzene in the connecting pipe 12 is heated by the heat exchanger 13, so as to prevent steam from condensing and improve the oil-water separation effect, the other end of the connecting pipe 12 is connected to the oil-water separator 14, the outlet of the oil-water separator 14 is connected to the water outlet 10, so as to discharge the separated water through the water outlet 10, one end of the return pipe 15 is disposed at the top of the oil-water separator 14, the heater 16 is disposed on the return pipe 15, the other end of the return pipe 15 is connected to the heat exchanger 13, the steam in the return pipe 15 is heated by the heater 16 and, utilize steam to heat crude benzene, because steam has the heat, so can the energy saving when the heating, reduce the waste of resource, oil water separator's discharge gate department still is equipped with liquid level distributor simultaneously for the oil distribution that separates is even.

Specifically, as shown in fig. 4, a circulation pipeline 18 is arranged in the heat exchange device 13, one end of the circulation pipeline 18 is connected to the return pipe 15, the other end of the circulation pipeline 18 is connected to a steam outlet 17, the steam outlet 17 is connected to the gas phase outlet 11 in a penetrating manner, and the contact area between the circulation pipeline 18 and the connection pipe 12 is increased, so that heat exchange is facilitated.

The utility model discloses the theory of operation: when using this debenzolization tower, the crude benzol that will debenzolization stripping layer 1 extracted is discharged through crude benzol discharge gate 3, introduce crude benzol backward flow mouth 5 with it through water pump 4, flow through heat transfer device 13 department of connecting pipe 12 at the crude benzol backward flow, heat the crude benzol in the connecting pipe 12 through heat transfer device 13, can prevent the steam condensation, improve oil water separation's effect, oil water separator 14's top is equipped with back flow 15, let in heat transfer device 13 after heating the steam in back flow 15 through heater 16, utilize steam to heat crude benzol, because steam has the heat, so can the energy saving when heating, reduce the waste of resource, the steam that will utilize up simultaneously leads to gaseous phase export 11 through steam outlet 17 and discharges, the moisture after will separating discharges through outlet 10, convenience and practicality.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. A novel debenzolization tower comprises a debenzolization stripping layer (1) and is characterized in that: the device is characterized in that an oil outlet (2) is connected to the bottom of one side of the debenzolization stripping layer (1), a crude benzene discharge port (3) is connected to the other side of the debenzolization stripping layer (1), a water pump (4) is connected to the crude benzene discharge port (3) through a pipeline, a crude benzene reflux port (5) is connected to the other end of the water pump (4), a stripping packing layer (6) is arranged in an inner cavity of the debenzolization stripping layer (1), a rectification packing layer (7) is arranged above the stripping packing layer (6), an oil-water separation section (8) is fixedly connected to the top of the debenzolization stripping layer (1), an oil-water separation device (9) is connected to the inner wall of one side, penetrating through the oil-water separation section (8), of the crude benzene reflux port (5), the oil-water separation device (9) is arranged in the inner cavity of the oil-water separation section (, the water outlet (10) is arranged on the outer side of the oil-water separation section (8), and the top of the oil-water separation section (8) is connected with a gas phase outlet (11).

2. The novel debenzolization tower as claimed in claim 1, wherein: the crude benzene discharge port (3) is arranged on one side of the rectification packing layer (7), and a flow regulating valve is arranged between the crude benzene discharge port (3) and the water pump (4).

3. The novel debenzolization tower as claimed in claim 1, wherein: one side of the debenzolization stripping layer (1) is provided with an oil-rich inlet, and the other side of the debenzolization stripping layer (1) is provided with a circulating hot oil port.

4. The novel debenzolization tower as claimed in claim 1, wherein: oil-water separator (9) include connecting pipe (12), heat transfer device (13), oil-water separator (14), back flow (15), heater (16) and steam outlet (17), crude benzol backward flow mouth (5) are connected with the one end of connecting pipe (12), heat transfer device (13) laminating is in the outside of connecting pipe (12), the other end and the oil-water separator (14) of connecting pipe (12) are connected, the exit and outlet (10) of oil-water separator (14) are connected.

5. The novel debenzolization tower as claimed in claim 4, wherein: one end of the return pipe (15) is arranged at the top of the oil-water separator (14), the heater (16) is arranged on the return pipe (15), and the other end of the return pipe (15) is connected with the heat exchange device (13).

6. The novel debenzolization tower as claimed in claim 4, wherein: a circulating pipeline (18) is arranged in the heat exchange device (13), one end of the circulating pipeline (18) is connected with the return pipe (15), the other end of the circulating pipeline (18) is connected with the steam outlet (17), and the steam outlet (17) is communicated with the gas phase outlet (11).