CN213253061U

CN213253061U - High-efficient debenzolization device of crude benzol production system

Info

Publication number: CN213253061U
Application number: CN202021414581.0U
Authority: CN
Inventors: 张烨; 冯智玮
Original assignee: Qujing Cuchuang Technology Co ltd
Current assignee: Qujing Cuchuang Technology Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-05-25
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a high-efficient debenzolization device of crude benzol production system, including barrel, stripping tank, filtering component, condensate pipe and condenser, install the PLC controller on the lateral wall at barrel top, the inside level of barrel is fixed with the heat insulating board, and the central point department of putting of heat insulating board bottom installs the stripping tank through the flange, the middle part of stripping tank is provided with filtering component, the feed liquor pipe is installed to one side at stripping tank top, be fixed with temperature sensor on the lateral wall of stripping tank, the central point department of putting at stripping tank top and the bottom of ascending pipeline communicate each other, and the middle part intercommunication of ascending pipeline has a sealed shell to the top that sealed shell placed in, two condensate pipes about the top of ascending pipeline is installed through the three-way pipe. The utility model discloses not only synthesize the maintenance efficiency who improves the debenzolization device, improve energy utilization in addition when maintaining the required temperature environment of reaction.

Description

High-efficient debenzolization device of crude benzol production system

Technical Field

The utility model relates to a chemical industry equipment technical field specifically is a high-efficient benzene removal device of crude benzol production system.

Background

At present, in a crude benzene production system, benzene vapor is generally collected by equipment such as a debenzolization tower and the like, and the benzene vapor is condensed, liquefied, separated and purified to finally obtain a crude benzene liquid finished product. The process can improve the preparation rate of the crude benzene liquid on one hand, and can reduce the environmental pollution and the harm to human bodies caused by the discharge of benzene vapor on the other hand.

For example, the patent of the publication No. CN209548746U, which integrates benzene removal, condensation and separation into a whole, forms a set of equipment for efficiently producing crude benzene. In the scheme, however, materials such as filtering and rectifying materials and installation structures thereof are not explained, so that the effect of convenient replacement cannot be achieved; meanwhile, the waste heat is not effectively utilized, and a large amount of heat energy loss exists. Accordingly, those skilled in the art have provided an efficient debenzolization apparatus of a crude benzene production system to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient benzene removal device of crude benzol production system to solve the problem that proposes in the above-mentioned background art.

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

a high-efficiency benzene removal device of a crude benzene production system, which comprises a cylinder body, a stripping tank, a filtering component, a condensate pipe and a condenser, the outer side wall of the top of the cylinder body is provided with a PLC controller, a heat insulation plate is horizontally fixed in the cylinder body, and the central position of the bottom end of the heat insulation plate is provided with a stripping tank through a flange, the middle part of the stripping tank is provided with a filtering component, a liquid inlet pipe is arranged on one side of the top of the stripping tank, a temperature sensor is fixed on the outer side wall of the stripping tank, the central position of the top of the stripping tank is communicated with the bottom end of the ascending pipeline, the middle part of the ascending pipeline is communicated with a sealing shell, and the sealing shell is arranged at the top end of the heat insulation plate, the top end of the ascending pipeline is provided with a left condensate pipe and a right condensate pipe through a three-way pipe, and the condensate pipes are all positioned in the corresponding condensers, and the two condensers are respectively fixed at the left side and the right side of the top of the cylinder body.

As a further aspect of the present invention: the left side and the right side of the top end of the heat insulation plate are both provided with air collecting covers, the air collecting covers are of horn-shaped structures, and exhaust fans are fixed at the tops of the air collecting covers.

As a further aspect of the present invention: the stripping tank is funnel-shaped structure, and the stripping tank is high heat conduction aluminum alloy material.

As a further aspect of the present invention: the filter assembly is including filtering sieve, screw rod, nut and ring, the equidistant a plurality of that is provided with in middle part of the jar of distilling is filtered the sieve, and the diameter from the top down of filtering the sieve reduces in proper order and agrees with each other with the inside wall of the jar of distilling, the bottom cover of screw rod is equipped with the nut, and the top of screw rod is vertical to run through and to filter sieve and weld the ring.

As a further aspect of the present invention: the sealed shell is composed of two symmetrical halves, and the interior of the sealed shell is filled with rectification filler which is in butt joint in an inclined mode.

As a further aspect of the present invention: the middle part of congeal liquid pipe all is "S" type structure, and the other end of congeal liquid pipe all passes the condenser and extends to the rear side of barrel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the screw rod is lifted upwards through the circular ring, the filter sieve plates are overlapped and lifted one by one under the limiting action of the nut, then the nut is loosened, the old filter sieve plate automatically falls off, and a new filter sieve plate is sleeved again;

2. through the wind-collecting cover of loudspeaker form, utilize air exhauster from the top down to continuously extract the hot-air, when cooling around accelerating the condensate pipe, pour into the waste heat wind into around the stripping jar to according to temperature sensor's detected value, control the temperature interval around the stripping jar through adjusting the wind speed, thereby improve energy utilization and rate when maintaining the required temperature environment of reaction.

Drawings

FIG. 1 is a schematic view of a three-dimensional half-section structure of a high-efficiency benzene removal device of a crude benzene production system;

FIG. 2 is a schematic sectional view of a high-efficiency benzene removal apparatus of a crude benzene production system;

FIG. 3 is a schematic view showing an enlarged cross-sectional structure of a stripping tank in the high-efficiency debenzolization apparatus of the crude benzene production system;

FIG. 4 is an enlarged sectional view of a sealed shell in a high-efficiency debenzolization apparatus of a crude benzene production system.

In the figure: 1. a barrel; 2. a PLC controller; 3. a heat insulation plate; 4. a stripping tank; 5. a filter assembly; 501. filtering the sieve plate; 502. a screw; 503. a nut; 504. a circular ring; 6. a liquid inlet pipe; 7. a temperature sensor; 8. an ascending pipe; 9. sealing the shell; 10. rectifying the filler; 11. a condensate pipe; 12. a condenser; 13. a wind collecting cover; 14. an exhaust fan.

Detailed Description

Referring to fig. 1-4, in the embodiment of the present invention, a high-efficiency benzene removing device for crude benzene production system comprises a barrel 1, a stripping tank 4, a filtering component 5, a condensate pipe 11 and a condenser 12, wherein a PLC controller 2 is installed on the outer side wall of the top of the barrel 1, a thermal insulation board 3 is horizontally fixed inside the barrel 1, a stripping tank 4 is installed at the central position of the bottom end of the thermal insulation board 3 through a flange, the filtering component 5 is arranged in the middle of the stripping tank 4, a liquid inlet pipe 6 is installed at one side of the top of the stripping tank 4, a temperature sensor 7 is fixed on the outer side wall of the stripping tank 4, the central position of the top of the stripping tank 4 is communicated with the bottom end of an ascending pipe 8, a sealing shell 9 is communicated with the middle of the ascending pipe 8, the sealing shell 9 is placed at the top end of the thermal insulation board 3, a left condensate pipe 11 and a right condensate, and the condensate pipes 11 are located inside the corresponding condensers 12, and the two condensers 12 are respectively fixed at the left and right sides of the top of the barrel 1.

In fig. 1: the left side and the right side of the top end of the heat insulation plate 3 are both provided with air collecting covers 13, the air collecting covers 13 are both in horn-shaped structures, and exhaust fans 14 are fixed at the tops of the air collecting covers 13 and are used for extracting hot air and preheating the hot air for utilization; the stripping tank 4 is of a funnel-shaped structure, and the stripping tank 4 is made of high-heat-conductivity aluminum alloy materials, so that external heating is facilitated; the middle parts of the condensate pipes 11 are in S-shaped structures, and the other ends of the condensate pipes 11 penetrate through the condenser 12 and extend to the rear side of the cylinder body 1, so that the contact area of a condensation area is increased, and the gaseous benzene is fully condensed;

in fig. 1: the filtering component 5 comprises filtering sieve plates 501, a screw rod 502, a nut 503 and a circular ring 504, the filtering sieve plates 501 are arranged in the middle of the stripping tank 4 at equal intervals, the diameters of the filtering sieve plates 501 are sequentially reduced from top to bottom and are matched with the inner side wall of the stripping tank 4, the nut 503 is sleeved at the bottom end of the screw rod 502, and the top end of the screw rod 502 vertically penetrates through the filtering sieve plates 501 and is welded with the circular ring 504, so that the assembly and disassembly are convenient; the sealing shell 9 is composed of two half parts symmetrically, the rectifying fillers 10 are filled in the sealing shell 9, the rectifying fillers 10 are in butt joint in an inclined mode, and the phenomenon that the gaps of the tangent planes leak to cause insufficient purification is avoided.

The model of the PLC controller 2 may be TC45, the model of the temperature sensor 7 may be PT100, the output end of the temperature sensor 7 is electrically connected to the input end of the PLC controller 2, the model of the condenser 12 may be DWN-300, the model of the exhaust fan 14 may be GD30K2-12, and the input ends of the condenser 12 and the exhaust fan 14 are electrically connected to the output end of the PLC controller 2.

The utility model discloses a theory of operation is: rich oil is injected into a funnel-shaped stripping tank 4 through a liquid inlet pipe 6, benzene vapor is generated through external heating, and the rest lean oil is directly output after being filtered by a plurality of layers of filter sieve plates 501, in the process, the benzene vapor continuously enters a sealing shell 9 along an ascending pipeline 8, purification and dehydration are completed through a rectification filler 10, the rectified gaseous benzene continuously ascends to enter an S-shaped condensate pipe 11, and is fully contacted with a condenser 12, subjected to heat exchange and condensate and finally output from the tail end;

in addition, by arranging the PLC 2 and utilizing the exhaust fans 14 in the two groups of horn-shaped air collecting covers 13 to continuously extract hot air from top to bottom, the temperature of the periphery of the condensate pipe 11 is accelerated, simultaneously, the waste heat air is injected into the periphery of the stripping tank 4, the injection rate of the waste heat air is controlled by adjusting the rotating speed of the exhaust fan 14 according to the detection value of the temperature sensor 7, and further, the temperature interval of the periphery of the stripping tank 4 is adjusted, thereby improving the energy utilization rate while maintaining the temperature environment required by the reaction,

in addition, when filter assembly 5 needs to be changed, dismantle the flange joint of stripping tank 4 earlier, upwards mention screw rod 502 through ring 504, then under nut 503's limiting displacement, filter sieve 501 will be overlapped one by one and mention, then loosen nut 503, then old filter sieve 501 drops automatically, suit new filter sieve 501 again can, when needs change rectification filler 10, then through pulling back two half sealed shells 9 are reverse, make then two rectification filler 10 along tangent plane alternate segregation and break away from between the ascending pipeline 8, at the rectification filler 10 of renewal, reverse operation above-mentioned step, can form complete filler with sealed shell 9, rectification filler 10 butt joint each other, thereby the maintenance efficiency of debenzolization device has been synthesized and improved.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-efficiency debenzolization device of a crude benzene production system comprises a barrel body (1), a stripping tank (4), a filtering component (5), a condensate pipe (11) and a condenser (12), and is characterized in that a PLC (programmable logic controller) is installed on the outer side wall of the top of the barrel body (1), a heat insulation plate (3) is horizontally fixed inside the barrel body (1), the stripping tank (4) is installed at the central position of the bottom end of the heat insulation plate (3) through a flange, the filtering component (5) is arranged in the middle of the stripping tank (4), a liquid inlet pipe (6) is installed at one side of the top of the stripping tank (4), a temperature sensor (7) is fixed on the outer side wall of the stripping tank (4), the central position of the top of the stripping tank (4) is communicated with the bottom end of an ascending pipeline (8), and the middle of the ascending pipeline (8) is communicated with a sealing shell (9), and the sealed shell (9) is placed on the top end of the heat insulation plate (3), the top end of the ascending pipeline (8) is provided with a left condensation pipe and a right condensation pipe (11) through a three-way pipe, the condensation pipes (11) are positioned inside the corresponding condensers (12), and the two condensers (12) are respectively fixed on the left side and the right side of the top of the barrel body (1).

2. The high-efficiency benzene removal device for the crude benzene production system according to claim 1, wherein the heat insulation plate (3) is provided with wind collection hoods (13) at the left and right sides of the top end thereof, the wind collection hoods (13) are of a horn-shaped structure, and the exhaust fans (14) are fixed to the tops of the wind collection hoods (13).

3. The efficient debenzolization device of the crude benzene production system as claimed in claim 1, wherein the stripping tank (4) is funnel-shaped, and the stripping tank (4) is made of high thermal conductivity aluminum alloy.

4. The efficient debenzolization device of crude benzene production system of claim 1, characterized in that, the filtering component (5) comprises a filtering sieve plate (501), a screw (502), a nut (503) and a ring (504), the middle part of the stripping tank (4) is provided with a plurality of filtering sieve plates (501) at equal intervals, the diameters of the filtering sieve plates (501) are sequentially reduced from top to bottom and are matched with the inner side wall of the stripping tank (4), the bottom end of the screw (502) is sleeved with the nut (503), and the top end of the screw (502) vertically penetrates through the filtering sieve plate (501) and is welded with the ring (504).

5. The high-efficiency debenzolization device of a crude benzene production system as claimed in claim 1, characterized in that said sealed shell (9) is composed of two symmetrical halves, and the interior of the sealed shell (9) is filled with rectification packing (10), and the rectification packing (10) is in butt joint with each other.

6. The efficient debenzolization device of the crude benzene production system as claimed in claim 1, wherein the middle parts of the condensate pipes (11) are all in an "S" shape, and the other ends of the condensate pipes (11) all pass through the condenser (12) and extend to the rear side of the cylinder (1).