CN112642176B

CN112642176B - Improved separation device for separating benzene from water

Info

Publication number: CN112642176B
Application number: CN202011276606.XA
Authority: CN
Inventors: 万立峰; 田磊; 李国旺; 杨伟建; 周倩倩
Original assignee: Langfang Hetian Bio Chemical Co ltd
Current assignee: Langfang Hetian Bio Chemical Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2022-03-25
Anticipated expiration: 2040-11-16
Also published as: CN112642176A

Abstract

The invention discloses an improved separation device for separating benzene and water, which comprises: a separation vessel; the lining and the separation container enclose a first annular cavity; an air inlet pipe; a cooling mechanism; a first liquid outlet pipe; a second liquid outlet pipe; wherein: the height of the gas inlet pipe is higher than that of the second liquid outlet pipe, and the height of the second liquid outlet pipe is higher than that of the first liquid outlet pipe; the separation device further comprises: the inner lining cylinder is arranged in the lining so as to form a second annular cavity with the lining in a surrounding mode, the upper end of the inner lining cylinder is connected with the inner hole wall of the lining in a sealing mode, and the upper port of the inner lining cylinder is opposite to the cooling mechanism; wherein: and a plurality of wall holes are formed in the wall of the lining barrel and are used for communicating the lining barrel with the second annular cavity.

Description

Improved separation device for separating benzene from water

Technical Field

The present invention relates to an improved separation device for separating benzene from water.

Background

The applicant's prior patent (application No. 202020774556.7) discloses a separation device comprising:

a separation vessel;

the bushing is arranged in the separation container, a certain distance is reserved between the lower end of the bushing and the bottom of the separation container, an annular cavity is enclosed by the bushing and the separation container, and a communicating vessel structure is formed by the annular cavity and the inner hole of the bushing through the bottom of the separation container;

the air inlet pipe radially extends into the upper part in the lining from the outside of the separation container, and is used for introducing water-benzene mixed gas into the lining;

a cooling mechanism for cooling and liquefying the water-benzene mixture introduced into the liner;

the first liquid outlet pipe extends into the annular cavity from the outer diameter of the separation container;

a second outlet pipe extending radially from an outer diameter of the separation vessel into an inner bore of the liner; wherein:

the height of the air inlet pipe is higher than that of the second liquid outlet pipe, and the height of the second liquid outlet pipe is higher than that of the first liquid outlet pipe.

The separation device with the structure has the following beneficial effects:

1. make separator form a linker structure through addding the bush, and then make first drain pipe draw water out from the separation container through setting up the upper position in the water layer, therefore, only when the water layer that the cyclic annular holds the chamber reaches the height of first drain pipe, water just can be drawn out, therefore needn't observe the liquid level that water and benzene contacted in real time, needn't set up the changeable valve member of aperture and needn't implement this valve member of control in first drain pipe department either.

2. The water layer is arranged at a height higher than the contact surface of the water and the benzene by additionally arranging the lining, and the part of water is separated from the benzene by the lining, so that under the condition that the size of the separation container in the height direction is smaller, the water to be led out cannot be mixed with more benzene, and the height size of the separation container can be smaller.

However, the above separation apparatus still has the following problems in separating water from benzene:

1. if the actual working condition is that the water-benzene mixed gas is continuously introduced into the separation container, the liquid in the separation container does not have a standing condition, the liquidity of the liquid near the inner pipe orifice of the second liquid outlet pipe is higher, the area is located at the upper layer, however, the content of water mixed in the liquid in the area is higher, and further the content of water in the benzene flowing out of the second liquid outlet pipe is higher.

2. The liquid that is arranged in the bush easily produces the flow of all directions, and this kind of flow leads to the layering interface of the benzene of upper strata and the water of lower floor not clear, or, this kind of flow destroys the layering interface easily, and then makes benzene get into annular appearance chamber easily, and then makes the content of benzene in the water that flows out from first drain pipe great.

Disclosure of Invention

In view of the above technical problems in the prior art, embodiments of the present invention provide a separation device.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

an improved separation device for separating benzene from water comprising:

a separation vessel;

the bushing is arranged in the separation container, a certain distance is reserved between the lower end of the bushing and the bottom of the separation container, a first annular cavity is enclosed by the bushing and the separation container, and a communicating vessel structure is formed by the first annular cavity and the inner hole of the bushing through the bottom of the separation container;

the first liquid outlet pipe extends into the first annular cavity from the outer diameter of the separation container;

the height of the gas inlet pipe is higher than that of the second liquid outlet pipe, and the height of the second liquid outlet pipe is higher than that of the first liquid outlet pipe;

further comprising:

the inner lining cylinder is arranged in the lining so as to form a second annular cavity with the lining in a surrounding mode, the upper end of the inner lining cylinder is connected with the inner hole wall of the lining in a sealing mode, and the upper port of the inner lining cylinder is opposite to the cooling mechanism; wherein:

and a plurality of wall holes are formed in the wall of the lining barrel and are used for communicating the lining barrel with the second annular cavity.

Preferably, a plurality of partition plates are arranged on the inner hole wall of the bushing, and the partition plates are circumferentially arranged at intervals; wherein:

the inner end of each partition plate in the radial direction has a preset gap with the lining cylinder.

Preferably, each partition plate is provided with a through hole on the plate surface so as to enable adjacent fan-shaped areas separated by the partition plate and used for containing liquid to be communicated; wherein:

the inner port of the second liquid outlet pipe extends into one of the fan-shaped areas.

Preferably, the lower end of the liner is formed with a constricted lower port.

Preferably, the inner port department of second drain pipe is provided with the shielding plate, the upper end of shielding plate is connected to the top of interior port on the inner wall of bush, the lower extreme of shielding plate with the inner wall of bush encloses into the feed liquor port that allows liquid to pass through, the feed liquor port is located the below of interior port.

Preferably, the lower end of the liner is formed with a flange which forms an annular constriction in the lower end of the first annular volume for restricting flow between liquid in the first annular volume and liquid in the bottom of the separation vessel.

Preferably, the cooling mechanism includes:

the cover body is buckled above the separation container;

the cooling pipe is arranged in the cover body in a reciprocating bending posture, and a liquid inlet and a liquid outlet of the cooling pipe extend out of the cover body; wherein:

the water-benzene mixed gas entering the upper part of the lining through the air inlet pipe moves upwards to contact with the cooling pipe for liquefaction, and the liquefied water-benzene mixed gas falls back into the lining cylinder.

Compared with the prior art, the improved separation device for separating benzene and water disclosed by the invention has the beneficial effects that:

1. the separating device provided by the invention still has the beneficial effects of the separating device in the prior application.

2. The separating device provided by the invention can enable the mixed liquid to pass through the water and benzene separation process twice by additionally arranging the lining cylinder, and can be more suitable for the working condition of continuously supplying the water-benzene mixed gas to the separating container.

3. According to the separation device provided by the invention, the second annular cavity is formed in the separation container, and the partition plate is arranged in the second annular cavity, so that the liquidity of liquid at the layered interface can be reduced, the interface of a benzene layer and a water layer at the layered interface is clear, and the content of benzene in the liquid entering the first annular cavity can be effectively reduced.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the inventive embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic diagram of an improved separation apparatus for separating benzene from water according to an embodiment of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Reference numerals:

10-a separation vessel; 20-a liner; 21-flanging; 31-a cover; 32-a cooling tube; 41-air inlet pipe; 42-a first outlet pipe; 43-a second liquid outlet pipe; 51-a first flange; 52-a second flange; 53-third flange; 60-a first annular volume; 71-benzene layer; 72-aqueous layer; 80-liner; 81-wall holes; 82-a second annular volume; 83-a partition plate; 831-through hole; 84-a shutter; and (5) reducing the diameter by 85-time.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

As shown in fig. 1 and 2, an embodiment of the present invention discloses a separation apparatus, including: the separation container 10, the lining 20, the air inlet pipe 41, the first liquid outlet pipe 42, the second liquid outlet pipe 43, the lining cylinder 80, the partition plate 83, the shielding plate 84 and the cooling mechanism.

The upper end of the separation container 10 is formed with a first flange 51, the radial dimension of the liner 20 is smaller than the radial dimension of the separation container 10, the liner 20 is disposed in the separation container 10, so that the sleeve body of the liner 20 and the inner wall of the separation container 10 enclose a first annular cavity 60, and the lower end of the liner 20 and the bottom of the separation container 10 have a certain distance, so that the inside (or inner hole) of the liner 20 and the first annular cavity 60 are communicated by the bottom of the separation container 10, thus, a communicator structure is formed between the separation container 10 and the liner 20, the upper end of the liner 20 is formed with a second flange 52, and the second flange 52 is lapped on the first flange 51.

The lining cylinder 80 is arranged in the lining 20, the upper end of the lining cylinder 80 is connected with the inner hole wall of the lining 20 in a sealing manner, a second annular cavity 82 is defined between the lining cylinder 80 and the lining 20, a plurality of wall holes 81 are formed in the wall of the lining cylinder 80, and the wall holes 81 are used for communicating the inside of the lining cylinder 80 with the second annular cavity 82. The lower end of the liner 80 is also formed with a throat 85.

The lower end of the liner 20 is formed with a flange 21, which flange 21 forms the lower end of the first annular chamber 60 into an annular constriction for restricting the flow between the liquid in the first annular chamber 60 and the liquid in the bottom of the separation vessel 10.

The partition plates 83 include a plurality of partition plates 83 circumferentially arranged on the inner wall of the liner 20, and a predetermined gap is formed between the radially inner end of each partition plate 83 and the liner 80, so that a sector area for receiving liquid is defined between adjacent two partition plates 83. Each partition 83 is formed with through holes 831, and the through holes 831 allow the adjacent two sectors to communicate with each other.

The inner port of the second liquid outlet pipe 43 extends into a sector area, the upper end of the shielding plate 84 is located above the inner port of the second liquid outlet pipe 43 and connected with the inner wall of the lining 20, and the lower end of the shielding plate 84 is located below the inner port and surrounds the inner wall of the lining 20 to form a liquid inlet port.

The cooling mechanism comprises a cover body 31 and a cooling pipe 32, the cover body 31 is arranged above the separation container 10, a third flange plate 53 is formed at the lower end of the cover body 31, and the third flange plate 53 is attached to the second flange plate 52, so that the cover body 31 and the separation container 10 are in sealed connection. The main body of the cooling tube 32 is bent back and forth, the main body of the cooling tube 32 is disposed in the cover 31, and the liquid inlet and the liquid outlet of the cooling tube 32 radially extend out of the cover 31, so that the cooling tube 32 has a cooling function by introducing a cooling medium into the cooling tube 32.

An air inlet pipe 41 radially extends into the lining 20 from the outside of the separation container 10, an inlet end of the air inlet pipe is positioned at the upper part of the lining 20, the air inlet pipe 41 is used for introducing water-benzene mixed gas (as a material to be separated) into the lining 20, after the water-benzene mixed gas enters the upper part of the lining 20, the water-benzene mixed gas moves upwards to be in contact with the surface of the cooling pipe 32 due to a cooling environment formed by the cooling pipe 32 above the water-benzene mixed gas, so that the water-benzene mixed gas is liquefied to form water-benzene mixed liquid, and the water-benzene mixed liquid immediately falls into the lining cylinder 80.

The liquefied mixture falls into the liner 80 and during the falling process, water and benzene are gradually separated due to the density difference, which causes most of the water to flow out from the lower port of the liner 80 and most of the benzene to flow into the second annular cavity 82 from the through holes 831.

Benzene and water in the mixed liquid flowing into the second annular cavity 82 are separated for the second time, and because the partition plate 83 is arranged in the second annular cavity 82, the partition plate 83 greatly limits the flowability of the liquid entering the second annular cavity 82, so that the separation of water and benzene can be utilized, the flow of the liquid at a layered interface can be greatly reduced, the layered interface is clearer, and the content of benzene in the liquid entering the first annular cavity 60 can be greatly reduced.

After the mixed liquor is subjected to the above process, the benzene layer 71 is located at the upper part of the liner 20, and a part of the water layer 72 is located below the benzene layer 71 in the liner 20, and the other part passes through the bottom of the separation vessel 10 and enters the annular cavity.

Through set up flanging 21 at the lower extreme of bush 20, this flanging 21 makes the lower extreme of first cyclic annular appearance chamber 60 form annular constriction, and this annular constriction can reduce the mobility of the liquid here, and then reduces the mobility of the liquid of layering interface department, and then reduces the content of the benzene in the liquid that gets into in first cyclic annular appearance chamber 60.

It should be noted that: this causes the level of water in the annular chamber to be slightly below the level of benzene in the liner 20, since benzene is less dense than water.

The first liquid outlet pipe 42 extends into the annular cavity from the outside of the separation container 10, and the height of the port of the first liquid outlet pipe 42 is approximately located at the liquid level of the water in the annular cavity, so that the upper layer of the water in the annular cavity can be led out by the first liquid outlet pipe 42 as long as the upper layer of the water reaches the height of the first liquid outlet pipe 42.

The second liquid outlet pipe 43 extends into the liner 20 from the outside of the separation container 10, and the height of the port of the second liquid outlet pipe 43 is approximately at the liquid level of benzene, so that the upper layer of the benzene layer 71 can be led out through the second liquid outlet pipe 43 as long as the height of the second liquid outlet pipe 43 is reached.

And the difference in height between first effluent pipe 42 and second effluent pipe 43 is determined based on the density of benzene and water and the mixing ratio of benzene and water.

The separating device provided by the invention has the advantages that:

2. The separation device provided by the invention can enable the mixed liquid to pass through the water and benzene separation process twice by additionally arranging the lining cylinder 80, and can be more suitable for the working condition of continuously supplying the water-benzene mixed gas to the separation container 10.

3. According to the separation device provided by the invention, the second annular cavity 82 is formed in the separation container 10, and the partition plate 83 is arranged in the second annular cavity 82, so that the liquidity of the liquid at the layered interface can be reduced, the interface of the benzene layer 71 and the water layer 72 at the layered interface is clear, and the content of benzene in the liquid entering the first annular cavity 60 can be effectively reduced.

Moreover, although exemplary embodiments have been described herein, the scope of the present invention includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. An improved separation device for separating benzene from water comprising:

a separation vessel;

it is characterized by also comprising:

2. The improved separation device for benzene and water of claim 1 wherein the inner bore wall of the liner is provided with a plurality of partition plates circumferentially spaced apart; wherein:

3. The improved separation device for benzene and water as claimed in claim 2, wherein the face of each partition plate is perforated with through holes to allow communication between adjacent sectors separated by the partition plate for containing liquid; wherein:

4. The improved separation device for benzene and water according to claim 3 wherein the lower end of said inner liner is formed with a constricted lower port.

5. The improved separation device for separating benzene and water as claimed in claim 2, wherein a baffle is provided at the inner port of the second outlet pipe, the upper end of the baffle is connected to the inner wall of the bushing above the inner port, the lower end of the baffle and the inner wall of the bushing enclose a liquid inlet port allowing liquid to pass through, and the liquid inlet port is located below the inner port.

6. The improved separation device for separating benzene and water of claim 1 wherein the lower end of the liner is formed with a flared edge that forms an annular constriction in the lower end of the first annular volume for restricting flow between the liquid in the first annular volume and the liquid in the bottom of the separation vessel.

7. The improved separation device for separating benzene and water of claim 1 wherein said cooling mechanism comprises:

the cover body is buckled above the separation container;