CN114225449B - Xylene tower - Google Patents
Xylene tower Download PDFInfo
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- CN114225449B CN114225449B CN202111609685.6A CN202111609685A CN114225449B CN 114225449 B CN114225449 B CN 114225449B CN 202111609685 A CN202111609685 A CN 202111609685A CN 114225449 B CN114225449 B CN 114225449B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/008—Liquid distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
Abstract
The invention relates to the technical field of material separation, in particular to a xylene tower, which comprises a tower body, wherein an exhaust pipe is fixedly communicated with the top end of the tower body, an isolation structure is connected inside the exhaust pipe, the top end of the isolation structure is connected with a protection structure matched with the exhaust pipe, a pair of liquid distribution structures distributed up and down are connected to the inner side of the tower body, a material limiting and air guiding component is arranged between the pair of liquid distribution structures, the liquid distribution structures comprise a liquid distribution plate and a plurality of liquid distribution components, a plurality of liquid distribution holes are formed in the liquid distribution plate, the liquid distribution components are respectively connected to the liquid distribution holes in a one-to-one correspondence mode, the liquid distribution components are located at the upper end of the liquid distribution plate, and a flow guide component is connected in the liquid distribution holes.
Description
Technical Field
The invention relates to the technical field of material separation, in particular to a xylene tower.
Background
Xylene is an organic compound of formula C 8 H 10 The product is colorless transparent liquid, two hydrogens on a benzene ring are replaced by methyl, three isomers of ortho, meta and para exist, in the industry, xylene refers to a mixture of the isomers, and tower equipment is widely applied to industries such as chemical industry, petroleum industry and the like as the most common separation operation equipment. The xylene column is a device for separating ortho-xylene, meta-xylene and para-xylene in mixed para-xylene. The traditional xylene tower has low working stability and low separation efficiency, and the reason is that the xylene tower is unstable and uneven in liquid distribution, so that the xylene tower needs to be improved.
The invention discloses a xylene tower disclosed in Chinese patent with publication number CN107349616A, which comprises a skirt, a tower body, a filler, an infinite liquid distributor and an automatic balance liquid distribution system; the skirt is arranged below the tower body and supported on the tower body; the tower body comprises two large end sockets, a large barrel, a small end socket and a small barrel, wherein the two large end sockets are respectively arranged at the upper end and the lower end of the large barrel, a large cavity is formed between the two large end sockets and the large barrel, a small cavity is formed between the small end socket and the small barrel, and the small cavity is connected with the large end socket at the lower side and communicated with the large cavity; three sections of fillers are arranged in the tower body in parallel, and an infinite point liquid distributor is arranged on the fillers; the automatic balance liquid distribution system is arranged on the upper part of the large cylinder and is positioned above the infinite point liquid distributor. Based on the above retrieval, combine prior art, discover that feed liquid is when filling, because the feed liquid is more, causes the inside space of filler completely to be filled up by the feed liquid easily, and steam is difficult to distribute in the filler comprehensively, leads to feed liquid and steam to contact inadequately, and separation efficiency still is comparatively low.
Disclosure of Invention
The present invention is directed to a xylene column, which solves the above problems of the prior art.
The technical scheme of the invention is as follows: the utility model provides a xylene tower, includes the tower body, the lower extreme fixedly connected with skirt of tower body, the fixed intercommunication in side top of tower body has the transfer line, the fixed intercommunication in end portion that the tower body was kept away from to the transfer line has the feed liquid case, fixed intercommunication has the circulating pipe between feed liquid case and the tower body, the fixed intercommunication in side of tower body has the steam duct, the fixed intercommunication in top of tower body has the blast pipe, the internal connection of blast pipe has isolating construction, isolating construction's top is connected with the protective structure with blast pipe looks adaptation, the inboard of tower body is connected with a pair of cloth liquid structure that distributes from top to bottom, and is provided with limit material air guide member between a pair of cloth liquid structure, limit material air guide member is connected with the inner wall of tower body, cloth liquid structure includes cloth liquid board and a plurality of cloth liquid subassemblies, cloth liquid board and the inner wall fixed connection of tower body, steam duct is located the downside of cloth liquid board, be provided with a plurality of cloth liquid holes on the cloth liquid board, it is a plurality of cloth liquid subassembly one-to connect in a plurality of cloth liquid hole department respectively, and cloth liquid subassembly is located the upper end of cloth liquid board, be connected with the water guide member in the cloth liquid hole.
Preferably, isolation structure includes waterproof ventilated membrane and mesh board, waterproof ventilated membrane is located the downside of mesh board, and waterproof ventilated membrane and mesh board all with the inner wall fixed connection of blast pipe, the upper end fixed connection of protective structure and mesh board.
Preferably, the protection structure comprises a protection member and an elastic reset member, and the protection member is fixedly connected with the mesh plate through the elastic reset member.
Preferably, the protection component includes the protective cover, elasticity reset component includes extension spring and flexible pipe, and the fixed cover of flexible pipe locates extension spring's the outside, flexible pipe is connected between mesh board and protective cover.
Preferably, the lower extreme of protective cover is provided with sunken, sunken inner wall integration is provided with a plurality of swing leaves along protective cover center evenly distributed, the protective cover rotates with flexible pipe to be connected.
Preferably, the material limiting air guide component comprises a material collecting plate, a discharging hole is formed in the material collecting plate, a plurality of material limiting air guide pipes are fixedly connected to the material collecting plate, the material limiting air guide pipes extend upwards, and the material limiting air guide pipes penetrate through the material collecting plate.
Preferably, the liquid distribution subassembly includes into liquid ring and fender liquid ring, and keeps off liquid ring sliding sleeve and locate the outside of entering liquid ring, the last hole edge fixed connection in liquid ring and liquid distribution hole of advancing, the fixed cover of department is followed to the upper end of keeping off liquid ring has connect the floating ring, it encircles and goes up and is provided with first feed liquor hole and second feed liquor hole respectively to advance liquid ring and fender liquid, the inner wall fixedly connected with baffle of liquid ring advances, the vertical cross-section of baffle is the shape of falling L, and the baffle keeps off in first feed liquor hole department.
Preferably, a material return pipe is fixedly communicated between the tower body and the material liquid box, and a pipe orifice at the upper end of the material return pipe is positioned on the upper side of the liquid distribution plate.
Preferably, the liquid distribution hole comprises a second taper hole and a first taper hole which are arranged from top to bottom, the second taper hole is communicated with the first taper hole, the large calibers of the second taper hole and the first taper hole are far away from each other, and the flow guide component is connected between the first taper hole and the second taper hole.
Preferably, the flow guide member comprises a conical flow guide block and a triangular support frame, the conical flow guide block is matched with the second conical hole, and the triangular support frame is fixedly connected between the lower end of the conical flow guide block and the inner wall of the first conical hole.
The invention provides a xylene tower through improvement, compared with the prior art, the xylene tower has the following improvement and advantages:
one is as follows: according to the liquid distribution structure, the liquid distribution structure comprising the liquid distribution plate and the liquid distribution assemblies is arranged, the liquid level of the liquid material at the upper end of the liquid distribution plate props against the floating ring to rise, and when the second liquid inlet hole in the liquid blocking ring is communicated with the first liquid inlet hole in the liquid inlet ring, the liquid material enters the liquid inlet ring through the first liquid inlet hole and the second liquid inlet hole; in addition, the baffle at the first liquid inlet hole can block the liquid entering the liquid inlet ring, so that the liquid flows downwards along the inner walls of the liquid inlet ring and the liquid distribution hole, the contact area between the steam and the liquid is increased, the liquid is separated more uniformly, and the phenomenon that the steam is difficult to pass because the liquid distribution hole is full of the liquid can be prevented;
and the second step is as follows: according to the steam distribution device, the liquid distribution hole comprising the second conical hole and the first conical hole is arranged, and the conical flow guide block is arranged at the first conical hole with the small diameter arranged upwards;
and thirdly: according to the invention, the isolation structure comprising the waterproof breathable film and the mesh plate is arranged in the exhaust pipe, so that after vaporized gas reaches the exhaust pipe along with steam, liquid is blocked by the waterproof breathable film and stays in the tower body for continuously participating in the separation action in the later period, the recycling is realized, and water resources are saved; the vaporized gas is smoothly discharged through the waterproof breathable film, and the arranged mesh plate can effectively prevent the waterproof breathable film from excessively deforming under the common impact action of steam and gas and even separating from the exhaust pipe, so that an effective protection effect is achieved;
and the fourth step: according to the invention, the top end of the isolation structure is connected with the protection structure comprising the protection member and the elastic reset member, when gas flows upwards, a large upward driving force is generated on the protection cover, the protection cover drives the extension spring to stretch, at the moment, the protection cover is separated from the exhaust pipe, the gas is discharged from a gap between the protection cover and the exhaust pipe, when no gas is discharged, the protection cover resets under the action of the self gravity of the protection cover and the extension spring, the exhaust pipe is stably sealed, and external impurities are prevented from entering the exhaust pipe;
and the fifth step: according to the invention, the depression is arranged at the lower end of the protective cover, the plurality of rotary vanes uniformly distributed along the center of the protective cover are integrally arranged on the inner wall of the depression, the protective cover is rotatably connected with the telescopic pipe, and when the upward flowing gas reaches the rotary vanes, the rotary vanes are pushed to drive the whole protective cover to rotate, so that a worker can know the separation condition of the material liquid in real time conveniently, wherein the depression arranged at the lower end of the protective cover can further enhance the pushing effect of the gas flow on the rotary vanes, so that the protective cover can rotate more smoothly.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the invention in partial cutaway configuration;
FIG. 3 is a schematic perspective view of the material-limiting air guide member of the present invention;
FIG. 4 is a schematic perspective view of the liquid distribution structure of the present invention;
FIG. 5 is a schematic perspective view of a liquid distribution plate of the present invention from a first perspective;
FIG. 6 is a perspective view of a liquid distribution plate of the present invention from a second perspective;
FIG. 7 is a schematic perspective view of a flow directing member of the present invention;
FIG. 8 is a schematic perspective view of a dispensing assembly of the present invention;
FIG. 9 is a schematic view of a partial cutaway configuration of the liquid inlet ring of the present invention;
fig. 10 is a perspective view of the guard mechanism of the present invention.
Description of the reference numerals:
1. a tower body; 2. a feed liquid tank; 3. a transfusion tube; 4. a steam delivery pipe; 5. a circulation pipe; 6. a skirt; 7. an exhaust pipe; 8. a guard member; 801. a protective cover; 802. rotating leaves; 803. recessing; 9. a liquid distribution plate; 10. a liquid distribution assembly; 101. a liquid inlet ring; 102. a liquid retaining ring; 103. a floating ring; 104. a first liquid inlet hole; 105. a second liquid inlet hole; 106. a baffle plate; 11. a material limiting and air guiding member; 111. a material collecting plate; 112. a material limiting air duct; 113. a blanking hole; 12. a material returning pipe; 13. a first tapered bore; 14. a second tapered bore; 15. a flow guide member; 151. a conical flow guide block; 152. a triangular support frame; 16. a waterproof breathable film; 17. a mesh plate; 18. an extension spring; 19. a telescopic tube.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, 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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides a xylene tower through improvement, and the technical scheme of the invention is as follows:
as shown in fig. 1-10, a xylene column comprises a column body 1, wherein a skirt 6 is fixedly connected to the lower end of the column body 1, and the skirt 6 is used for stably supporting the column body 1.
The top end of the side of the tower body 1 is fixedly communicated with a liquid conveying pipe 3, the end part of the liquid conveying pipe 3 far away from the tower body 1 is fixedly communicated with a feed liquid box 2, and the liquid conveying pipe 3 is used for conveying feed liquid in the feed liquid box 2 into the tower body 1.
A circulating pipe 5 is fixedly communicated between the material liquid tank 2 and the tower body 1, and the circulating pipe 5 is used for re-conveying the residual material liquid at the bottom of the tower body 1 to the material liquid tank 2 to realize circulating separation.
The side end of the tower body 1 is fixedly communicated with a steam conveying pipe 4, and the steam conveying pipe 4 conveys steam into the tower body 1 to realize the separation of the feed liquid.
The top end of the tower body 1 is fixedly communicated with an exhaust pipe 7, steam is contacted with the feed liquid, heat in the steam is transferred to the feed liquid, so that components with lower boiling points in the feed liquid are vaporized, and the steam is converged to flow upwards and is exhausted from the exhaust pipe 7.
Specifically, a water pump is adopted to guide feed liquid in a feed liquid tank 2 into a tower body 1 through a liquid conveying pipe 3, a steam conveying pipe 4 is connected with an external steam generating device, steam is conveyed into the tower body 1 through the steam conveying pipe 4, the steam is contacted with the feed liquid, heat in the steam is transferred to the feed liquid, components with lower boiling points in the feed liquid are vaporized and flow upwards to converge into the steam, the steam is discharged from an exhaust pipe 7 until the top, and the rest feed liquid returns to the feed liquid tank 2 through a circulating pipe 5, and circulating vaporization separation is carried out.
The inside of the exhaust pipe 7 is connected with an isolation structure, the isolation structure comprises a waterproof breathable film 16 and a mesh plate 17, the waterproof breathable film 16 is positioned at the lower side of the mesh plate 17, the waterproof breathable film 16 and the mesh plate 17 are fixedly connected with the inner wall of the exhaust pipe 7, and after vaporized gas reaches the exhaust pipe 7 along with steam, liquid is blocked by the waterproof breathable film 16 and stays in the tower body 1 for continuously participating in a separation effect in the later period, so that the recycling is realized, and water resources are saved; the vaporized gas is smoothly discharged through the waterproof breathable film 16; the mesh plate 17 can effectively prevent the waterproof breathable film 16 from excessively deforming under the common impact action of steam and gas, and even being separated from the exhaust pipe 7, so that an effective protection effect is achieved.
The top end of the isolation structure is connected with a protection structure matched with the exhaust pipe 7, the protection structure is fixedly connected with the upper end of the mesh plate 17, the protection structure comprises a protection member 8 and an elastic reset member, the protection member 8 is fixedly connected with the mesh plate 17 through the elastic reset member, the protection member 8 comprises a protection cover 801, the elastic reset member comprises an extension spring 18 and a telescopic pipe 19, the telescopic pipe 19 is fixedly sleeved on the outer side of the extension spring 18, and the telescopic pipe 19 is connected between the mesh plate 17 and the protection cover 801; when the gas flows upwards, a large upward driving force is generated on the protective cover 801, the protective cover 801 carries the extension spring 18 to stretch, the protective cover 801 is separated from the exhaust pipe 7, the gas is discharged from a gap between the protective cover 801 and the exhaust pipe 7, and when no gas is discharged, the protective cover 801 resets under the action of the gravity of the protective cover 801 and the extension spring 18, so that the exhaust pipe 7 is stably sealed, and external impurities are prevented from entering the exhaust pipe 7; the extension tube 19 is sleeved outside the extension spring 18, so that the extension spring 18 can be effectively prevented from being deformed by force in a non-working direction, the extension spring 18 can be effectively protected, and the service life of the extension spring is prolonged.
A recess 803 is arranged at the lower end of the protecting cover 801, a plurality of rotary vanes 802 uniformly distributed along the center of the protecting cover 801 are integrally arranged on the inner wall of the recess 803, and the protecting cover 801 is rotatably connected with the telescopic pipe 19; when the gas flowing upwards reaches the rotary vane 802, the rotary vane 802 is pushed to drive the whole protective cover 801 to rotate, so that the worker can know the separation condition of the material liquid in real time, wherein the arrangement of the recess 803 at the lower end of the protective cover 801 can further enhance the pushing effect of the gas flow on the rotary vane 802, and the protective cover 801 can rotate more smoothly.
Specifically, after the vaporized gas reaches the exhaust pipe 7 along with the steam, the liquid is blocked by the waterproof breathable film 16 and stays in the tower body 1 for continuously participating in the separation action in the later period, so that the recycling is realized, and the water resource is saved; the vaporized gas is smoothly discharged through the waterproof breathable film 16; the mesh plate 17 can effectively prevent the waterproof breathable film 16 from excessively deforming under the impact of steam and gas and even separating from the exhaust pipe 7, so as to play an effective protection role; when gas flows upwards, a large upward driving force is generated on the protective cover 801, the protective cover 801 drives the extension spring 18 to stretch, at the moment, the protective cover 801 is separated from the exhaust pipe 7, the gas is discharged from a gap between the protective cover 801 and the exhaust pipe 7, and when no gas is discharged, the protective cover 801 resets under the action of the gravity of the protective cover 801 and the extension spring 18, so that the exhaust pipe 7 is stably sealed, and external impurities are prevented from entering the exhaust pipe 7; when the upward flowing gas reaches the rotary vane 802, the rotary vane 802 is pushed to drive the whole protective cover 801 to rotate, so that the worker can know the separation condition of the material liquid in real time, wherein the depression 803 at the lower end of the protective cover 801 can further enhance the pushing effect of the gas flow on the rotary vane 802, so that the protective cover 801 can rotate more smoothly; the extension tube 19 is sleeved outside the extension spring 18, so that the extension spring 18 can be effectively prevented from being deformed by force in a non-working direction, the extension spring 18 can be effectively protected, and the service life of the extension spring is prolonged.
The inner side of the tower body 1 is connected with a pair of liquid distribution structures distributed up and down, each liquid distribution structure comprises a liquid distribution plate 9 and a plurality of liquid distribution assemblies 10, the liquid distribution plates 9 are fixedly connected with the inner wall of the tower body 1, a steam delivery pipe 4 is positioned on the lower side of the liquid distribution plate 9, a plurality of liquid distribution holes are formed in the liquid distribution plates 9, the plurality of liquid distribution assemblies 10 are respectively connected to the plurality of liquid distribution holes in a one-to-one correspondence mode, the liquid distribution assemblies 10 are positioned at the upper end of the liquid distribution plates 9, each liquid distribution assembly 10 comprises a liquid inlet ring 101 and a liquid baffle ring 102, the liquid baffle ring 102 is slidably sleeved on the outer side of the liquid inlet ring 101, the liquid inlet ring 101 is fixedly connected with the upper hole edges of the liquid distribution holes, the upper end edge of the liquid baffle ring 102 is fixedly sleeved with a floating ring 103, the liquid inlet ring 101 and the liquid baffle ring 102 are respectively provided with a first liquid inlet hole 104 and a second liquid inlet hole 105, the inner wall of the liquid inlet ring 101 is fixedly connected with a baffle 106, the vertical section of the baffle 106 is in an inverted L shape, and the baffle 106 is blocked at the first liquid inlet hole 104; the liquid level of the liquid at the upper end of the liquid distribution plate 9 props against the floating ring 103 to rise until the second liquid inlet hole 105 on the liquid baffle ring 102 is communicated with the first liquid inlet hole 104 on the liquid inlet ring 101, the liquid enters the liquid inlet ring 101 through the first liquid inlet hole 104 and the second liquid inlet hole 105, and in the process, the liquid level of the liquid is always positioned at the upper sides of the first liquid inlet hole 104 and the second liquid inlet hole 105, so that the blockage of the liquid distribution hole due to the fact that impurities floating on the liquid level of the liquid enter the liquid inlet ring 101 can be avoided; in addition, the baffle 106 at the first liquid inlet hole 104 can block the liquid entering the liquid inlet ring 101, so that the liquid flows downwards along the inner walls of the liquid inlet ring 101 and the liquid distribution holes, and the situation that the liquid is full of the liquid distribution holes to cause steam to be difficult to pass through is prevented.
The liquid distribution hole is connected with a flow guide member 15, the liquid distribution hole comprises a second conical hole 14 and a first conical hole 13 which are arranged up and down, the second conical hole 14 is communicated with the first conical hole 13, the large calibers of the second conical hole 14 and the first conical hole 13 are arranged away from each other, the flow guide member 15 is connected between the first conical hole 13 and the second conical hole 14, the flow guide member 15 comprises a conical flow guide block 151 and a triangular support frame 152, the conical flow guide block 151 is matched with the second conical hole 14, a gap is reserved between the conical flow guide block 151 and the second conical hole 14, and the triangular support frame 152 is fixedly connected between the lower end of the conical flow guide block 151 and the inner wall of the first conical hole 13; the setting of first bell mouth 13 can strengthen the impact force that steam flows upwards, guarantees that steam is stable through the cloth liquid hole, and toper water conservancy diversion piece 151 can make steam form great extrusion force between second bell mouth 14 department and feed liquid to make steam and feed liquid fully contact, strengthen the separating action of feed liquid.
Be provided with limit material air guide component 11 between a pair of cloth liquid structure, limit material air guide component 11 is connected with the inner wall of tower body 1, and limit material air guide component 11 is provided with unloading hole 113 including album flitch 111 on the board 111 that gathers materials, and gather materials and go up a plurality of limit material air ducts 112 of fixedly connected with on the board 111, and a plurality of limit material air ducts 112 all upwards extend the setting, and limit material air duct 112 runs through album flitch 111: feed liquid after the separation effect of the liquid distribution structure on the upper side of the material collecting plate 111 falls onto the material collecting plate 111, and continuously falls into the liquid distribution structure on the lower side of the material collecting plate 111 through the discharging holes 113 on the material collecting plate 111, the material limiting air ducts 112 can allow steam to pass through smoothly, the discharging holes 113 are staggered with the liquid distribution holes on the lower side of the material collecting plate 111, and the feed liquid is prevented from passing through the liquid distribution holes perpendicularly.
Specifically, the liquid level of the liquid at the upper end of the liquid distribution plate 9 rises against the floating ring 103 until the second liquid inlet hole 105 on the liquid baffle ring 102 is communicated with the first liquid inlet hole 104 on the liquid inlet ring 101, the liquid enters the liquid inlet ring 101 through the first liquid inlet hole 104 and the second liquid inlet hole 105, and in the process, the liquid level of the liquid is always positioned at the upper sides of the first liquid inlet hole 104 and the second liquid inlet hole 105, so that the blockage of the liquid distribution hole due to the fact that impurities floating on the liquid level of the liquid enter the liquid inlet ring 101 can be avoided; in addition, the baffle 106 at the first liquid inlet hole 104 can block the liquid entering the liquid inlet ring 101, so that the liquid flows downwards along the inner walls of the liquid inlet ring 101 and the liquid distribution holes, and the situation that the liquid is full of the liquid distribution holes to prevent steam from passing through difficultly is avoided; the setting of first bell mouth 13 can strengthen the impact force that steam upwards flows, guarantee that steam stably passes through the cloth liquid hole, toper water conservancy diversion piece 151 can make steam form great extrusion force between this place and the feed liquid, thereby make steam and feed liquid fully contact, strengthen the separating action of feed liquid, feed liquid after the cloth liquid structure separating action of album flitch 111 upside falls to the board 111 that gathers materials, and continue to fall into the cloth liquid structure that is located album flitch 111 downside via the unloading hole 113 on album flitch 111, unloading hole 113 staggers with the cloth liquid hole that is located album flitch 111 downside, avoid the perpendicular through cloth liquid hole of feed liquid, limit material air duct 112 can supply steam to pass through smoothly.
Further, a material return pipe 12 is fixedly communicated between the tower body 1 and the material liquid box 2, and a pipe orifice at the upper end of the material return pipe 12 is positioned at the upper side of the liquid distribution plate 9; after the separation is finished, the residual feed liquid on the upper side of the liquid distribution plate 9 can be discharged through the feed back pipe 12 by using a water pump.
The working principle is as follows: the feed liquid in the feed liquid box 2 is guided into the tower body 1 by a water pump through a liquid conveying pipe 3, a steam conveying pipe 4 is connected with an external steam generating device, steam is conveyed into the tower body 1 through the steam conveying pipe 4, the steam is contacted with the feed liquid, heat in the steam is transferred to the feed liquid, so that components with lower boiling points in the feed liquid are vaporized and flow upwards together with the steam until the top of the feed liquid is discharged from an exhaust pipe 7, and the rest feed liquid returns to the feed liquid box 2 through a circulating pipe 5 for circulating vaporization and separation; the liquid level of the liquid at the upper end of the liquid distribution plate 9 rises against the floating ring 103 until the second liquid inlet hole 105 on the liquid baffle ring 102 is communicated with the first liquid inlet hole 104 on the liquid inlet ring 101, the liquid enters the liquid inlet ring 101 through the first liquid inlet hole 104 and the second liquid inlet hole 105, and in the process, the liquid level of the liquid is always positioned at the upper sides of the first liquid inlet hole 104 and the second liquid inlet hole 105, so that the blockage of the liquid distribution hole caused by the entering of the floating impurities on the liquid level of the liquid into the liquid inlet ring 101 can be avoided; in addition, the baffle 106 at the first liquid inlet hole 104 can block the liquid entering the liquid inlet ring 101, so that the liquid flows downwards along the inner walls of the liquid inlet ring 101 and the liquid distribution hole, and the situation that steam is difficult to pass due to the fact that the liquid is filled in the liquid distribution hole is prevented; the arrangement of the first conical hole 13 can enhance the impact force of upward flow of steam, ensure that the steam stably passes through the liquid distribution hole, the conical flow guide block 151 can enable the steam to form a larger extrusion force between the steam and the liquid material, so that the steam is fully contacted with the liquid material, enhance the separation effect of the liquid material, the liquid material after the separation effect of the liquid distribution structure on the upper side of the material collecting plate 111 falls onto the material collecting plate 111, and continuously falls onto the liquid distribution structure on the lower side of the material collecting plate 111 through the discharging hole 113 on the material collecting plate 111, the discharging hole 113 is staggered with the liquid distribution hole on the lower side of the material collecting plate 111, so that the liquid material is prevented from vertically passing through the liquid distribution hole, and the material limiting air guide tube 112 can enable the steam to smoothly pass through; after the vaporized gas reaches the exhaust pipe 7 along with the steam, the liquid is blocked by the waterproof breathable film 16 and stays in the tower body 1 for continuously participating in the separation action in the later period, so that the recycling is realized, and the water resource is saved; the vaporized gas is smoothly discharged through the waterproof breathable film 16; the mesh plate 17 can effectively prevent the waterproof breathable film 16 from excessively deforming under the impact of steam and gas and even separating from the exhaust pipe 7, so as to play an effective protection role; when the gas flows upwards, a large upward driving force is generated on the protective cover 801, the protective cover 801 carries the extension spring 18 to stretch, the protective cover 801 is separated from the exhaust pipe 7, the gas is discharged from a gap between the protective cover 801 and the exhaust pipe 7, and when no gas is discharged, the protective cover 801 resets under the action of the gravity of the protective cover 801 and the extension spring 18, so that the exhaust pipe 7 is stably sealed, and external impurities are prevented from entering the exhaust pipe 7; when the gas flowing upwards reaches the rotary vane 802, the rotary vane 802 is pushed to drive the whole protective cover 801 to rotate, so that the worker can know the separation condition of the material liquid in real time, wherein the arrangement of the recess 803 at the lower end of the protective cover 801 can further enhance the pushing effect of the gas flow on the rotary vane 802, and the protective cover 801 can rotate more smoothly.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a xylene tower, includes tower body (1), the lower extreme fixedly connected with skirt (6) of tower body (1), its characterized in that: the device is characterized in that a liquid conveying pipe (3) is fixedly communicated with the top end of the side of the tower body (1), a liquid tank (2) is fixedly communicated with the end part of the liquid conveying pipe (3) far away from the tower body (1), a circulating pipe (5) is fixedly communicated between the liquid tank (2) and the tower body (1), a steam conveying pipe (4) is fixedly communicated with the side end of the tower body (1), an exhaust pipe (7) is fixedly communicated with the top end of the tower body (1), an isolation structure is connected inside the exhaust pipe (7), a protection structure matched with the exhaust pipe (7) is connected to the top end of the isolation structure, a pair of liquid distribution structures distributed up and down is connected to the inner side of the tower body (1), and a material limiting air guide component (11) is arranged between the pair of liquid distribution structures, limit material air guide member (11) is connected with the inner wall of tower body (1), the liquid distribution structure includes liquid distribution plate (9) and a plurality of liquid distribution subassembly (10), the inner wall fixed connection of liquid distribution plate (9) and tower body (1), steam transport pipe (4) are located the downside of liquid distribution plate (9), be provided with a plurality of liquid distribution holes on liquid distribution plate (9), it is a plurality of liquid distribution subassembly (10) one-to-one respectively connect in a plurality of liquid distribution hole department, and liquid distribution subassembly (10) are located the upper end of liquid distribution plate (9), be connected with water conservancy diversion member (15) in the liquid distribution hole, liquid distribution subassembly (10) are including liquid inlet ring (101) and liquid baffle ring (102) ) And the outside of liquid ring (101) is located to liquid ring (102) sliding sleeve, fixed connection is followed with the last hole in cloth liquid hole to liquid ring (101) of advancing, the upper end of liquid ring (102) is followed the fixed floating ring (103) that has cup jointed in department, be provided with first feed liquor hole (104) and second feed liquor hole (105) on liquid ring (101) and the liquid ring (102) of advancing respectively, the inner wall fixedly connected with baffle (106) of liquid ring (101), the vertical section of baffle (106) is the shape of falling L, and baffle (106) keep off in first feed liquor hole (104) department, fixed intercommunication has feed back pipe (12) between tower body (1) and feed liquid case (2), the upper end mouth of pipe of feed back pipe (12) is located the upside of cloth liquid board (9).
2. The xylene column as recited in claim 1, wherein: isolation structure includes waterproof ventilated membrane (16) and mesh board (17), waterproof ventilated membrane (16) are located the downside of mesh board (17), and waterproof ventilated membrane (16) and mesh board (17) all with the inner wall fixed connection of blast pipe (7), the upper end fixed connection of protective structure and mesh board (17).
3. The xylene column as recited in claim 2, wherein: the protective structure comprises a protective component (8) and an elastic resetting component, wherein the protective component (8) is fixedly connected with the mesh plate (17) through the elastic resetting component.
4. The xylene column as recited in claim 3, wherein: the protection component (8) comprises a protection cover (801), the elastic reset component comprises an extension spring (18) and a telescopic pipe (19), the telescopic pipe (19) is fixedly sleeved on the outer side of the extension spring (18), and the telescopic pipe (19) is connected between the mesh plate (17) and the protection cover (801).
5. The xylene column as recited in claim 4, wherein: the lower extreme of protective cover (801) is provided with sunken (803), the inner wall integration of sunken (803) is provided with a plurality of along protective cover (801) center evenly distributed's swing joint (802), protective cover (801) and flexible pipe (19) rotate and are connected.
6. The xylene column as recited in claim 1, wherein: the material limiting and air guiding component (11) comprises a material collecting plate (111), a discharging hole (113) is formed in the material collecting plate (111), a plurality of material limiting air guide pipes (112) are fixedly connected to the material collecting plate (111), the material limiting air guide pipes (112) extend upwards, and the material limiting air guide pipes (112) penetrate through the material collecting plate (111).
7. The xylene column as recited in claim 1, wherein: the liquid distribution hole comprises a second taper hole (14) and a first taper hole (13) which are arranged from top to bottom, the second taper hole (14) is communicated with the first taper hole (13), the large calibers of the second taper hole (14) and the first taper hole (13) are far away from each other, and the flow guide component (15) is connected between the first taper hole (13) and the second taper hole (14).
8. The xylene column as recited in claim 7, wherein: the flow guide component (15) comprises a conical flow guide block (151) and a triangular support frame (152), the conical flow guide block (151) is matched with the second conical hole (14), and the triangular support frame (152) is fixedly connected between the lower end of the conical flow guide block (151) and the inner wall of the first conical hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609685.6A CN114225449B (en) | 2021-12-25 | 2021-12-25 | Xylene tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111609685.6A CN114225449B (en) | 2021-12-25 | 2021-12-25 | Xylene tower |
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| CN114225449A CN114225449A (en) | 2022-03-25 |
| CN114225449B true CN114225449B (en) | 2023-02-03 |
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| GB696150A (en) * | 1950-07-12 | 1953-08-26 | Koch Eng Co Inc | Improvements in or relating to a gas-liquid contact device and method |
| JP2005224721A (en) * | 2004-02-13 | 2005-08-25 | Sumiju Plant Engineering Kk | Liquid dispersion apparatus |
| US8517352B1 (en) * | 2008-04-04 | 2013-08-27 | Gtc Technology Us Llc | Liquid distributor |
| CN201701935U (en) * | 2010-06-13 | 2011-01-12 | 天津市博隆塔器新技术开发有限公司 | Tower internals provided with gas secondary distribution function |
| CN204159060U (en) * | 2013-12-12 | 2015-02-18 | 江苏磐希化工有限公司 | A kind of de-high tower slightly heating up in a steamer m-methyl benzoic acid |
| CN204121795U (en) * | 2014-09-25 | 2015-01-28 | 中国石油化工股份有限公司 | A kind of novel packed tower suppressing gas fractionation unit to block liquid |
| CN104436732A (en) * | 2014-11-30 | 2015-03-25 | 林国友 | Novel packed tower |
| US10012436B2 (en) * | 2015-10-30 | 2018-07-03 | Praxair Technology, Inc. | Multiple pass, parallel flow downcomer tray for a mass transfer column |
| CN207928756U (en) * | 2018-01-23 | 2018-10-02 | 南京英斯派工程技术有限公司 | A kind of Hole Type Liquid Distributor of packed tower |
| CN208852452U (en) * | 2018-10-31 | 2019-05-14 | 四川宜宾江源化工机械制造有限责任公司 | It is a kind of for producing the dealcoholysis tower of dioctyl phthalate |
| CN209865355U (en) * | 2019-04-14 | 2019-12-31 | 深圳市宇盛品精密科技有限公司 | Chemical industry is with having filtered high-efficient rectifying column of pressurization |
| CN111744226B (en) * | 2020-07-24 | 2022-01-14 | 德州市德化化工有限公司 | Low-energy-consumption chemical light-component removing tower |
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