CN215799346U

CN215799346U - Benzene gas recovery unit diffuses in crude benzol condensation cooler

Info

Publication number: CN215799346U
Application number: CN202122447757.3U
Authority: CN
Inventors: 赵明; 张勇; 姜元伟
Original assignee: Yingkou Jiachen Combustion Chemical Co ltd
Current assignee: Yingkou Jiachen Combustion Chemical Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-02-11
Anticipated expiration: 2031-10-12

Abstract

The utility model belongs to the field of coke oven gas production, in particular to a crude benzene condensing cooler diffused benzene gas recovery device, aiming at the problems that the diffused benzene gas at the diffusing port of the existing crude benzene condensing cooler is not convenient to be recovered, benzene vapor can overflow from the diffusing port to the air, the resource waste is serious and the air pollution is caused, the utility model provides the following scheme, which comprises a base, a condensing cooler body is fixedly arranged at the top of the base, a recovery box is fixedly arranged at the top of the base, a same recovery pipe is hermetically communicated between the recovery box and the condensing cooler body, a shell is fixedly arranged on the inner wall of the right side of the recovery box, compared with the conventional crude benzene condensing cooler, a pipeline for recovering the benzene gas is arranged at the diffusing port of the condensing cooler body, the recovered benzene gas is recovered into a liquid box after being cooled, the resource utilization rate is improved, and the air is not polluted, the slave action responds to the call to protect the environment.

Description

Benzene gas recovery unit diffuses in crude benzol condensation cooler

Technical Field

The utility model relates to the technical field of coke oven gas production, in particular to a device for recovering benzene gas diffused by a crude benzene condensation cooler.

Background

The Coke Oven Gas, also called Coke Oven Gas, is known as Coke Oven Gas (COG Oven Gas) and belongs to high-calorific-value Gas, crude Gas or crude Gas due to a large number of combustible components. The method is characterized in that several kinds of bituminous coal are prepared into coking coal, after high-temperature dry distillation is carried out in a coke oven, coke and tar products are produced, meanwhile, a combustible gas is produced and is a byproduct of the coking industry, and a condensing cooler is needed to produce crude benzene in the production process of coke oven gas.

The diffused benzene gas of the diffusing port of the existing crude benzene condensation cooler is not convenient to recover, benzene vapor can overflow to the air from the diffusing port, and the air pollution is caused when the resource waste is serious, so that a device for recovering the diffused benzene gas of the crude benzene condensation cooler is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the diffused benzene gas at the diffusing port of a crude benzene condensing cooler is inconvenient to recycle, benzene vapor overflows into the air from the diffusing port, and the air is polluted while the resource waste is serious in the prior art, and provides a device for recycling the diffused benzene gas of the crude benzene condensing cooler.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a benzene gas recovery unit diffuses to thick benzene condensate cooler, includes the base, and the top fixed mounting of base has the condensate cooler body, the top fixed mounting of base has the collection box, and sealed intercommunication has same recovery tube between collection box and the condensate cooler body, fixed mounting has the casing on the right side inner wall of collection box, the right-hand member of recovery tube and the inside seal of casing are linked together, the outside cover of casing is equipped with the coil pipe, and the sealed intercommunication of input of coil pipe has refrigerated water suction subassembly, fixed mounting has the mounting disc on the right side inner wall of casing, and the left side fixed mounting of mounting disc has coolant liquid pipe, coolant liquid pipe's quantity is provided with a plurality ofly.

Preferably, can cool off in order to realize the outside of casing, the refrigerated water suction subassembly includes chilled water tank and water pump, and the right side of chilled water tank and the right side inner wall fixed mounting of collection box, the right side of water pump and the left side fixed mounting of chilled water tank, and the input of water pump and chilled water tank's inside seal is linked together, the input of water pump and the input of coil pipe are sealed to be linked together.

Preferably, in order to facilitate heat exchange of the returned chilled water, the top of the chilled water tank is hermetically communicated with a chilled water heat exchanger, the right side of the chilled water heat exchanger and the right side inner wall of the recovery box are fixedly installed, and the input end of the chilled water heat exchanger is hermetically communicated with the output end of the coil pipe.

Preferably, in order to facilitate the recovery of the liquid in the casing, fixed mounting has the liquid tank on the bottom inner wall of collection box, and the sealed intercommunication in top of liquid tank has the standpipe, the top of standpipe and the inside seal of casing are linked together, the sealed intercommunication in bottom of liquid tank has the downcomer, and the bottom of downcomer extends to the below of collection box, the outside of downcomer is equipped with the solenoid valve.

Preferably, for the convenience of supporting the collection box, the top right side fixed mounting of base has the supporting seat, and the top of supporting seat and the bottom fixed mounting of collection box, the sealed intercommunication in top of casing has the noncondensable gas exit tube, and the top of noncondensable gas exit tube extends to the top of collection box.

Preferably, for the convenience of cooling the benzene vapor, the inside fixed mounting of condensation cooler body has oil heat exchanger and cold water heat exchanger, and the sealed intercommunication in right side of condensation cooler body has thick benzene exit tube, seted up the mouth of loosing on the right side inner wall of condensation cooler body, and the left end of recovery tube extend to the mouth of loosing of condensation cooler body inside and with the mouthful sealed fixed mounting that looses of condensation cooler body.

The utility model has the beneficial effects that: the condensing cooler body, the oil heat exchanger, the cold water heat exchanger, the coolant liquid pipe, a water pump, the specification of refrigerated water heat exchanger and solenoid valve can be selected according to actual demand, still sealed intercommunication has benzene vapour to advance the pipe at the top of condensing cooler body, during the use, with benzene vapour via the inside of the leading-in condensing cooler body of benzene vapour entering pipe that sets up, benzene vapour carries out the heat transfer through oil heat exchanger and cold water heat exchanger in proper order, benzene vapour can form crude benzol, because the instability of crude benzol, can form benzene gas in the diffuse mouth department of condensing cooler body, benzene gas can get into the inside of casing via the recovery tube, benzene gas is cooled off after the inside of casing and a plurality of coolant liquid pipe joints, start the water pump at the in-process that benzene gas flows, the water pump can be with the refrigerated water inside the freezing water tank to the inside of coil pipe, the refrigerated water can take away the heat at the in-moving in-process, the benzene gas inside the shell can be cooled repeatedly, the cooled benzene gas forms liquid and is recycled to the inside of the liquid tank through the vertical pipe, and some non-condensable gas in the benzene gas is led out through the arranged non-condensable gas outlet pipe;

in order to solve the problem that the cooling effect of chilled water can be influenced due to higher temperature of the chilled water in the backflow process, the backflow chilled water can be subjected to heat exchange through the same chilled water heat exchanger arranged between the chilled water tank and the coil pipe, the temperature of the chilled water is kept, and the circulating cooling of the chilled water is realized;

in order to solve the problem that the liquid in the shell can not flow to the standpipe, the inner wall of the bottom of the shell is arranged in an inverted cone shape, so that the liquid recovered in the shell can be concentrated in the standpipe, the liquid can not be remained in the shell, and the utilization rate is improved.

Drawings

FIG. 1 is a perspective view of a part of the structure of a crude benzene condenser/cooler diffused benzene gas recovery unit according to the present invention;

FIG. 2 is a schematic view of the front view of a crude benzene condenser/cooler diffused benzene gas recovery unit according to the present invention;

FIG. 3 is a side view of a mounting plate structure of a crude benzene condensate cooler diffused benzene gas recovery unit according to the present invention;

fig. 4 is an enlarged schematic view of a portion a of the structure of the apparatus for recovering a benzene gas discharged from a crude benzene condenser and cooler in accordance with the present invention in fig. 2.

In the figure: 1 base, 2 supporting seats, 3 condensing cooler bodies, 4 oil heat exchangers, 5 cold water heat exchangers, 6 crude benzene exit tubes, 7 recovery tubes, 8 recovery boxes, 9 shells, 10 mounting discs, 11 cooling liquid tubes, 12 freezing water tanks, 13 water pumps, 14 coil pipes, 15 freezing water heat exchangers, 16 vertical tubes, 17 liquid tanks, 18 liquid discharge tubes, 19 electromagnetic valves and 20 non-condensable gas exit tubes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-4, a crude benzene condensing cooler diffused benzene gas recovery device, comprising a base 1, and a condensing cooler body 3 fixedly installed on the top of the base 1, the specification of the condensing cooler body 3 can be selected according to the actual application, the working process is the prior art, and is not repeated, the top of the condensing cooler body 3 is hermetically communicated with a benzene vapor inlet pipe, the top of the base 1 is fixedly installed with a recycling tank 8, the condensing cooler body 3 and the recycling tank 8 are arranged in the left and right direction, and the same recycling pipe 7 is hermetically communicated between the recycling tank 8 and the condensing cooler body 3, in order to cool the benzene vapor, an oil heat exchanger 4 and a cold water heat exchanger 5 are fixedly installed inside the condensing cooler body 3, the working processes of the oil heat exchanger 4 and the cold water heat exchanger 5 are the prior art, and the right side of the condensing cooler body 3 is hermetically communicated with crude benzene 6, the bottom of the condensation cooler body 3 is obliquely arranged, a dispersion opening is formed in the inner wall of the right side of the condensation cooler body 3, the left end of a recovery pipe 7 extends into the dispersion opening of the condensation cooler body 3 and is fixedly installed with the dispersion opening of the condensation cooler body 3 in a sealing mode, a shell 9 is fixedly installed on the inner wall of the right side of a recovery box 8, the shell 9 is transversely arranged in a cylindrical mode, the inner wall of the bottom of the shell 9 is arranged in an inverted conical mode, the right end of the recovery pipe 7 is communicated with the inside of the shell 9 in a sealing mode, a coil pipe 14 is sleeved on the outer side of the shell 9, the inner wall of the coil pipe 14 is tightly attached to the outer side of the shell 9, a chilled water pumping assembly is communicated with the input end of the coil pipe 14 in a sealing mode and comprises a chilled water tank 12 and a water pump 13, and the right side of the chilled water tank 12 is fixedly installed with the inner wall of the right side of the recovery box 8, the inside of the freezing water tank 12 is filled with freezing water, the right side of the water pump 13 is fixedly installed with the left side of the freezing water tank 12, the input end of the water pump 13 is communicated with the inside of the freezing water tank 12 in a sealing manner, the input end of the water pump 13 is communicated with the input end of the coil pipe 14 in a sealing manner, the input end of the coil pipe 14 is just a port on the left side of the coil pipe 14, in order to facilitate heat exchange of backflow freezing water, the top of the freezing water tank 12 is communicated with a freezing water heat exchanger 15 in a sealing manner, the right side of the freezing water heat exchanger 15 is fixedly installed with the inner wall on the right side of the recycling box 8, the specification of the freezing water heat exchanger 15 can be selected according to the actual application, the input end of the freezing water heat exchanger 15 is communicated with the output end of the coil pipe 14 in a sealing manner, the output end of the coil pipe 14 is just a port on the right side of the coil pipe 14, a mounting plate 10 is fixedly installed on the inner wall on the right side of the shell 9, and a cooling liquid pipe 11 is fixedly installed on the left side of the mounting plate 10, the number of the cooling liquid pipes 11 is plural, the plural cooling liquid pipes 11 are arranged in a ring shape, and the inside of the plural cooling liquid pipes 11 is filled with the cooling liquid.

Example two

The following further improvements are made on the basis of the first embodiment:

in the utility model, in order to conveniently recover the liquid in the shell 9, a liquid tank 17 is fixedly arranged on the inner wall of the bottom of the recovery tank 8, and the top of the liquid tank 17 is hermetically communicated with a vertical pipe 16, the vertical pipe 16 is used for communicating the shell 9 and the liquid tank 17, the top of the vertical pipe 16 is hermetically communicated with the inside of the shell 9, the bottom of the liquid tank 17 is hermetically communicated with a lower liquid pipe 18, and the bottom of the liquid dropping pipe 18 extends to the lower part of the recovery box 8, the outer side of the liquid dropping pipe 18 is provided with an electromagnetic valve 19, the working process of the electromagnetic valve 19 is the prior art, in order to support the recycling bin 8 conveniently, a supporting seat 2 is fixedly arranged at the right side of the top of the base 1, the supporting seat 2 is arranged in an L shape, and the top of supporting seat 2 and the bottom fixed mounting of collection box 8, the sealed intercommunication in top of casing 9 has noncondensable gas exit tube 20, and the top of noncondensable gas exit tube 20 extends to the top of collection box 8.

In the utility model, when in use, benzene vapor is led into the condensation cooler body 3 through the arranged benzene vapor inlet pipe, the benzene vapor exchanges heat through the oil heat exchanger 4 and the cold water heat exchanger 5 in sequence, the benzene vapor can form crude benzene, benzene gas can be formed at the diffusing port of the condensation cooler body 3 due to the instability of the crude benzene, the benzene gas can enter the shell 9 through the recycling pipe 7, the benzene gas is cooled after contacting with the plurality of cooling liquid pipes 11 in the shell 9, the water pump 13 is started in the flowing process of the benzene gas, the water pump 13 can pump the chilled water in the freezing water tank 12 to the inside of the coil pipe 14, the chilled water can carry away heat in the flowing process, and further can cool the outside of the shell 9, the benzene gas in the shell 9 can be cooled repeatedly, the cooled benzene gas forms liquid, the liquid is recycled to the inside of the liquid tank 17 through the vertical pipe 16, and some non-condensable gas in the benzene gas is led out through the arranged non-condensable gas outlet pipe 20, compare conventional crude benzene condensation cooler, set up the pipeline of retrieving benzene gas in the diffusion mouth department of condensation cooler body 3, retrieve to liquid tank 17's inside after cooling the benzene gas of retrieving, still can not air pollution when having improved the utilization ratio of resource, followed the action and responded the call of environmental protection.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a benzene gas recovery unit diffuses with crude benzol condensation cooler, includes base (1), and the top fixed mounting of base (1) has condensation cooler body (3), its characterized in that, the top fixed mounting of base (1) has collection box (8), and sealed intercommunication has same recovery tube (7) between collection box (8) and condensation cooler body (3), fixed mounting has casing (9) on the right side inner wall of collection box (8), the right-hand member of recovery tube (7) and the inside seal of casing (9) are linked together, the outside cover of casing (9) is equipped with coil pipe (14), and the sealed intercommunication of input of coil pipe (14) has refrigerated water suction subassembly, fixed mounting has mounting disc (10) on the right side inner wall of casing (9), and the left side fixed mounting of mounting disc (10) has cooling liquid pipe (11), the number of the cooling liquid pipes (11) is provided with a plurality.

2. The device for recycling the diffused benzene gas of the crude benzene condensation cooler as claimed in claim 1, wherein the chilled water pumping assembly comprises a chilled water tank (12) and a water pump (13), the right side of the chilled water tank (12) and the right side of the recycling tank (8) are fixedly installed, the right side of the water pump (13) and the left side of the chilled water tank (12) are fixedly installed, the input end of the water pump (13) is communicated with the inside of the chilled water tank (12) in a sealed manner, and the input end of the water pump (13) is communicated with the input end of the coil (14) in a sealed manner.

3. The device for recycling the diffused benzene gas of the crude benzene condensation cooler as claimed in claim 2, wherein the top of the freezing water tank (12) is hermetically communicated with a freezing water heat exchanger (15), the right side of the freezing water heat exchanger (15) and the inner wall of the right side of the recycling tank (8) are fixedly installed, and the input end of the freezing water heat exchanger (15) is hermetically communicated with the output end of the coil (14).

4. The device for recycling the diffused benzene gas of the crude benzene condensation cooler according to claim 1, wherein a liquid tank (17) is fixedly installed on the inner wall of the bottom of the recycling tank (8), the top of the liquid tank (17) is hermetically communicated with a vertical pipe (16), the top of the vertical pipe (16) is hermetically communicated with the inside of the shell (9), the bottom of the liquid tank (17) is hermetically communicated with a liquid descending pipe (18), the bottom of the liquid descending pipe (18) extends to the lower part of the recycling tank (8), and an electromagnetic valve (19) is arranged on the outer side of the liquid descending pipe (18).

5. The device for recycling the diffused benzene gas of the crude benzene condensation cooler as claimed in claim 1, wherein the supporting seat (2) is fixedly installed at the right side of the top of the base (1), the top of the supporting seat (2) and the bottom of the recycling bin (8) are fixedly installed, the top of the shell (9) is hermetically communicated with the non-condensable gas outlet pipe (20), and the top of the non-condensable gas outlet pipe (20) extends to the upper part of the recycling bin (8).

6. The device for recycling the diffused benzene gas of the crude benzene condensation cooler according to claim 1, wherein an oil heat exchanger (4) and a cold water heat exchanger (5) are fixedly installed inside the condensation cooler body (3), the crude benzene outlet pipe (6) is hermetically communicated with the right side of the condensation cooler body (3), a diffusion opening is formed in the inner wall of the right side of the condensation cooler body (3), and the left end of the recycling pipe (7) extends into the diffusion opening of the condensation cooler body (3) and is fixedly installed in a sealing manner with the diffusion opening of the condensation cooler body (3).