CN112973170A - Distillation column backflow limiting device - Google Patents
Distillation column backflow limiting device Download PDFInfo
- Publication number
- CN112973170A CN112973170A CN201911286321.1A CN201911286321A CN112973170A CN 112973170 A CN112973170 A CN 112973170A CN 201911286321 A CN201911286321 A CN 201911286321A CN 112973170 A CN112973170 A CN 112973170A
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- Prior art keywords
- reflux
- limiting device
- shell
- casing
- plate
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- 238000004821 distillation Methods 0.000 title claims abstract description 21
- 238000010992 reflux Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 2
- 238000005194 fractionation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
-
- 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
- B01D3/42—Regulation; Control
- B01D3/4205—Reflux ratio control splitter
-
- 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
- B01D3/02—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in boilers or stills
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of fractionation, and discloses a distillation tower reflux limiting device which comprises a shell, wherein four support legs are uniformly distributed on the periphery of the lower part of the shell, a residue outlet is formed in the bottom of the shell, a top pipe is arranged on the top of the shell, a condenser is fixedly arranged on the top of the top pipe, a reflux liquid outlet is formed in the upper part of one side of the shell, a reflux liquid inlet is formed in the lower part of one side of the shell, a control valve is fixed to one end of the reflux liquid outlet through a bolt, a steam guide pipeline is fixed to one end of the control valve through a bolt, a feeding port is formed in one end of the shell, a first flow guide cover is fixedly welded in the shell, and. According to the invention, through a series of structural designs, the device can adjust the reflux flow according to the distillation speed, so that the reflux ratio is effectively controlled, the quality of a separated product is improved, and the device can enable reflux to naturally flow back along the pipe wall, so that the reflux is greatly convenient to collect.
Description
Technical Field
The invention relates to the technical field of fractionation, in particular to a reflux limiting device of a distillation tower.
Background
Heating liquid to boiling, making liquid become vapour, then make vapour cooling recondenstion for liquid, the joint operation of these two processes is called the distillation, adopts governing valve and flowmeter to cooperate and realizes proportional control, and is higher to autonomous system's requirement, but current device can not adjust reflux flow according to the speed of distillation, can not carry out effective control to the reflux ratio, and the device can not make the reflux follow the pipe wall and flow back naturally, the collection of inconvenient reflux.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: the existing device can not adjust the reflux flow according to the distillation speed, can not effectively control the reflux ratio, and can not cause reflux to naturally reflux along the pipe wall, thereby being inconvenient for collecting the reflux.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a distillation column backward flow limiting device, includes the casing, the week side equipartition of casing lower part has four stabilizer blades, the bottom of casing is provided with the residue export, the top of casing is provided with the push pipe, the top fixed mounting of push pipe has the condenser, the backward flow liquid export has been seted up on the upper portion of casing one side, the backward flow liquid entry has been seted up to the lower part of casing one side, the one end bolt fastening of backward flow liquid export has the control valve, the one end bolt fastening of control valve has the steam guide pipeline, the one end of casing is provided with the charge door, the inside welded fastening of casing has first kuppe, the top welded connection of first kuppe has the steam outlet, one side welded connection of first kuppe bottom has the reservoir.
Preferably, the control valve includes connecting valve, closing plate, mount, mounting panel, thread bush, hand wheel, screw rod, connecting rod, pointer board, sealing washer and flow control piece, the top fixed mounting at connecting valve middle part has the closing plate, the top fixed mounting of closing plate has the mount, the top welded fastening of mount has the mounting panel, the middle part of mounting panel is cup jointed and is fixed with the thread bush, the internal thread connection of thread bush has the screw rod, the top fixed mounting of screw rod has the hand wheel, the top fixed mounting of screw rod has the connecting rod, the upper portion fixed mounting of connecting rod has the pointer board, the middle part of pointer board cup joints and is fixed with the sealing washer, the bottom fixed mounting of pointer board has flow control piece.
Preferably, the condenser includes liquid outlet, a jar body, fixed plate, second kuppe, mounting bracket and condenser pipe, the bottom of the jar body is provided with the liquid outlet, the inside welded fastening of the jar body has the fixed plate, the middle part welded fastening of fixed plate has the second kuppe, the last fixed surface of fixed plate installs four mounting brackets, two fixed mounting has the condenser pipe between the mounting bracket.
Preferably, the middle part of the fixing plate is provided with a hole, and the diameter of the hole is equal to the diameter of the upper opening of the second air guide sleeve.
Preferably, both ends of the fixing plate are completely attached to the inner wall of the tank body, and the fixing plate is connected with the tank body through welding.
Preferably, a flange plate is fixedly welded on the outer side of the liquid outlet.
Preferably, the top of the screw rod is provided with a threaded hole, and the hand wheel is fixedly connected with the screw rod through a screw.
Preferably, a graduated scale is arranged on the inner side of the fixed frame.
Preferably, the diameter of the steam outlet is equal to the diameter of the lower opening of the second air guide sleeve.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, through heating the raw material in the shell, under a certain pressure, when the raw material is heated to a certain temperature, the liquid starts to vaporize, the generated steam enters the tank body through the first air guide sleeve, the steam outlet and the second air guide sleeve, the generated liquid is condensed to the bottom of the tank body through the cooling of the condenser pipe, flows into the first air guide sleeve along the outer surface of the second air guide sleeve, and is further collected in the liquid storage tank, so that the reflux naturally flows back along the pipe wall, and the collection of the reflux is greatly facilitated.
(2) According to the invention, the screw rod moves up and down by rotating the hand wheel, so that the screw rod drives the connecting rod to move up and down, meanwhile, the connecting rod drives the flow control block to move, and the liquid flowing through the connecting valve is controlled by the flow control block, so that the device can adjust the reflux flow according to the distillation speed, further effectively control the reflux ratio, and improve the quality of a single product.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an isometric view of the present invention in its entirety;
FIG. 3 is a cross-sectional view of a distillation column of the present invention;
FIG. 4 is a cross-sectional view of the control valve of the present invention;
FIG. 5 is a schematic diagram of the control valve of the present invention;
FIG. 6 is a cross-sectional view of a condenser of the present invention;
fig. 7 is a schematic structural view of the condenser of the present invention.
In the figure: 1. a housing; 2. a support leg; 3. a residue outlet; 4. jacking pipes; 5. a condenser; 6. a reflux liquid outlet; 7. a reflux inlet; 8. a control valve; 9. a steam guide pipeline; 10. a feed inlet; 11. a steam outlet; 12. a first pod; 13. a liquid storage tank; 14. a connecting valve; 15. a sealing plate; 16. a fixed mount; 17. mounting a plate; 18. a threaded sleeve; 19. a hand wheel; 20. a screw; 21. a connecting rod; 22. a pointer plate; 23. a seal ring; 24. a flow control block; 25. a liquid outlet; 26. a tank body; 27. a fixing plate; 28. a second pod; 29. a mounting frame; 30. a condenser tube.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, a distillation column reflux limiting device comprises a shell 1, four support legs 2 are uniformly distributed on the periphery of the lower portion of the shell 1, a residue outlet 3 is arranged at the bottom of the shell 1, a top pipe 4 is arranged at the top of the shell 1, a condenser 5 is fixedly installed at the top of the top pipe 4, a reflux liquid outlet 6 is arranged at the upper portion of one side of the shell 1, a reflux liquid inlet 7 is arranged at the lower portion of one side of the shell 1, a control valve 8 is fixed at one end of the reflux liquid outlet 6 through a bolt, a steam guide pipeline 9 is fixed at one end of the control valve 8 through a bolt, a feed inlet 10 is arranged at one end of the shell 1, a first flow guide cover 12 is fixedly welded in the shell 1, a steam outlet 11 is welded at the top of the first flow guide cover 12;
the control valve 8 comprises a connecting valve 14, a sealing plate 15, a fixing frame 16, a mounting plate 17, a threaded sleeve 18, a hand wheel 19, a screw rod 20, a connecting rod 21, a pointer plate 22, a sealing ring 23 and a flow control block 24, the sealing plate 15 is fixedly mounted at the top end of the middle part of the connecting valve 14, the fixing frame 16 is fixedly mounted at the top part of the sealing plate 15, the mounting plate 17 is fixedly welded at the top part of the fixing frame 16, the threaded sleeve 18 is fixedly sleeved at the middle part of the mounting plate 17, the screw rod 20 is connected with the internal thread of the threaded sleeve 18, a threaded hole is formed in the top part of the screw rod 20, the hand wheel 19 is fixedly connected with the screw rod 20 through a screw, so that the hand wheel 19 is connected with the screw rod 20 into a whole, the hand wheel 19 is fixedly mounted at the top part of the screw rod 20, the, a sealing ring 23 is fixedly sleeved in the middle of the pointer plate 22, and a flow control block 24 is fixedly installed at the bottom of the pointer plate 22;
the condenser 5 comprises a liquid outlet 25, a tank body 26, a fixing plate 27, a second flow guide cover 28, mounting frames 29 and a condensation pipe 30, wherein the bottom of the tank body 26 is provided with the liquid outlet 25, the outer side of the liquid outlet 25 is fixedly welded with a flange plate to facilitate the connection of the liquid outlet 25 and a top pipe 4 through a bolt, the inner part of the tank body 26 is fixedly welded with the fixing plate 27, two ends of the fixing plate 27 are completely attached to the inner wall of the tank body 26, the fixing plate 27 is connected with the tank body 26 through a welding manner, the middle part of the fixing plate 27 is fixedly welded with the second flow guide cover 28, the middle part of the fixing plate 27 is provided with a hole, the diameter of the hole is equal to the diameter of the upper opening of the second flow guide cover 28, so that the second flow guide cover 28 of steam can be welded to the outer side of the hole, the diameter of the steam outlet 11 is equal to the diameter of the lower opening of the, a condensation pipe 30 is fixedly installed between the two mounting brackets 29.
The working principle is as follows:
in the invention, when a user uses the device, a feed inlet 10 is opened to add raw materials, the raw materials in a shell 1 are heated, under a certain pressure, when the raw materials are heated to a certain temperature, liquid starts to vaporize, generated steam enters the tank 26 through a first guide cover 12, a steam outlet 11 and a second guide cover 28, the generated liquid is condensed to the bottom of the tank 26 through cooling of a condenser pipe 30, flows into the first guide cover 12 along the outer surface of the second guide cover 28 and is further collected in a liquid storage tank 13, condensed liquid enters a connecting valve 14 through a reflux outlet 6, a hand wheel 19 is rotated to enable a screw rod 20 to move up and down, the screw rod 20 drives a connecting rod 21 to move up and down, the connecting rod 21 drives a flow control block 24 to move, and the liquid passing through the connecting valve 14 is controlled through the flow control block 24.
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 the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (9)
1. The utility model provides a distillation column backward flow limiting device, includes casing (1), its characterized in that, the week side equipartition of casing (1) lower part has four stabilizer blades (2), the bottom of casing (1) is provided with residue export (3), the top of casing (1) is provided with push pipe (4), the top fixed mounting of push pipe (4) has condenser (5), reflux export (6) have been seted up on the upper portion of casing (1) one side, reflux entry (7) have been seted up to the lower part of casing (1) one side, the one end bolt fastening of reflux export (6) has control valve (8), the one end bolt fastening of control valve (8) has air guide pipeline (9), the one end of casing (1) is provided with charge door (10), the inside welded fastening of casing (1) has first kuppe (12), the top welded connection of first kuppe (12) has steam outlet (11), one side of the bottom of the first air guide sleeve (12) is connected with a liquid storage tank (13) in a welding mode.
2. The distillation tower reflux limiting device according to claim 1, wherein the control valve (8) comprises a connecting valve (14), a sealing plate (15), a fixing frame (16), a mounting plate (17), a threaded sleeve (18), a hand wheel (19), a screw rod (20), a connecting rod (21), a pointer plate (22), a sealing ring (23) and a flow control block (24), the sealing plate (15) is fixedly mounted at the top end of the middle part of the connecting valve (14), the fixing frame (16) is fixedly mounted at the top part of the sealing plate (15), the mounting plate (17) is fixedly welded at the top part of the fixing frame (16), the threaded sleeve (18) is fixedly sleeved at the middle part of the mounting plate (17), the screw rod (20) is connected with the internal thread of the threaded sleeve (18), the hand wheel (19) is fixedly mounted at the top part of the screw rod (20), the connecting rod (21) is fixedly mounted at the top, the upper portion fixed mounting of connecting rod (21) has pointer board (22), the middle part cup joint of pointer board (22) is fixed with sealing washer (23), the bottom fixed mounting of pointer board (22) has flow control piece (24).
3. The distillation tower reflux limiting device according to claim 1, wherein the condenser (5) comprises a liquid outlet (25), a tank body (26), a fixing plate (27), a second flow guide cover (28), a mounting frame (29) and a condensation pipe (30), the liquid outlet (25) is arranged at the bottom of the tank body (26), the fixing plate (27) is fixed inside the tank body (26) in a welding mode, the second flow guide cover (28) is fixed in the middle of the fixing plate (27) in a welding mode, four mounting frames (29) are fixedly mounted on the upper surface of the fixing plate (27), and the condensation pipe (30) is fixedly mounted between the two mounting frames (29).
4. A distillation column reflux limiting device as claimed in claim 3, wherein the fixing plate (27) is provided with a hole in the middle, and the diameter of the hole is equal to the diameter of the upper opening of the second guide sleeve (28).
5. A distillation column reflux limiting device according to claim 3, wherein both ends of the fixing plate (27) are completely attached to the inner wall of the tank (26), and the fixing plate (27) is connected to the tank (26) by welding.
6. A distillation column reflux limiting device as claimed in claim 3, wherein a flange is welded to the outside of said liquid outlet (25).
7. The distillation column reflux limiting device as claimed in claim 2, wherein the top of the screw rod (20) is provided with a threaded hole, and the hand wheel (19) is fixedly connected with the screw rod (20) through a screw.
8. A distillation column reflux limiting device according to claim 2, wherein a scale is provided on the inside of the holder (16).
9. A distillation column reflux limiter arrangement as claimed in claim 3, wherein the diameter of said vapor outlet (11) is the same as the diameter of the lower mouth of the second dome (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286321.1A CN112973170A (en) | 2019-12-13 | 2019-12-13 | Distillation column backflow limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286321.1A CN112973170A (en) | 2019-12-13 | 2019-12-13 | Distillation column backflow limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112973170A true CN112973170A (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911286321.1A Pending CN112973170A (en) | 2019-12-13 | 2019-12-13 | Distillation column backflow limiting device |
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| CN (1) | CN112973170A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205909A (en) * | 1991-12-04 | 1993-04-27 | Union Carbide Chemicals & Plastics Technology Corporation | Apparatus for measuring reflux flow in a distillation column |
| JP2002177701A (en) * | 2000-12-08 | 2002-06-25 | Tetsuo Fujii | Batch packed distillation method and batch packed distillation equipment |
| CN2531184Y (en) * | 2002-03-21 | 2003-01-15 | 颜贻明 | High-pressure flow regulating valve |
| US6551465B1 (en) * | 2001-04-23 | 2003-04-22 | Uop Llc | Dividing wall column control system |
| CN201384866Y (en) * | 2009-02-10 | 2010-01-20 | 北京极易化工有限公司 | Vertical automatic reflux-withdrawal rectifying device |
| CN102933271A (en) * | 2011-03-14 | 2013-02-13 | 南京大学 | Rectification column for preventing thermal-sensitisation and rectification separation process for preventing thermal-sensitisation of natural material |
| CN203979614U (en) * | 2014-07-04 | 2014-12-03 | 中国西电电气股份有限公司 | A kind of inside screw non-rising stem type gate valve that can lock and indicate open/close states |
| CN207324121U (en) * | 2017-08-25 | 2018-05-08 | 河北国晨化工有限公司 | A kind of condensation reflux unit of versatic acid rectifying |
| CN207777664U (en) * | 2018-01-26 | 2018-08-28 | 山西隆达御威流体控制设备有限公司 | A kind of Outside screw stem rising through handwheel type gate valve |
| CN108775405A (en) * | 2018-08-27 | 2018-11-09 | 镇江华翔机电制造有限公司 | A kind of valve with flow control function |
| CN109966770A (en) * | 2019-04-29 | 2019-07-05 | 江山市双氧水有限公司 | A kind of novel three-in-one rectifying column process units of industry hydrogen peroxide enrichment facility |
| CN110141884A (en) * | 2019-05-27 | 2019-08-20 | 中冶焦耐(大连)工程技术有限公司 | The method and system of tower top regurgitant volume are controlled in tar production, benzene hydrogenation process |
| CN110170178A (en) * | 2019-05-27 | 2019-08-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of condensing unit distilling tower top |
| CN110393939A (en) * | 2019-09-05 | 2019-11-01 | 江苏美阳科技有限公司 | Precise electronic industry spent glycol depth rectifier unit |
| CN209662655U (en) * | 2019-01-25 | 2019-11-22 | 中国石化工程建设有限公司 | It is a kind of to provide the rectifying column of reflux by gravity |
| CN211462138U (en) * | 2019-12-13 | 2020-09-11 | 江苏民生特种设备集团有限公司 | Distillation column backflow limiting device |
-
2019
- 2019-12-13 CN CN201911286321.1A patent/CN112973170A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205909A (en) * | 1991-12-04 | 1993-04-27 | Union Carbide Chemicals & Plastics Technology Corporation | Apparatus for measuring reflux flow in a distillation column |
| JP2002177701A (en) * | 2000-12-08 | 2002-06-25 | Tetsuo Fujii | Batch packed distillation method and batch packed distillation equipment |
| US6551465B1 (en) * | 2001-04-23 | 2003-04-22 | Uop Llc | Dividing wall column control system |
| CN2531184Y (en) * | 2002-03-21 | 2003-01-15 | 颜贻明 | High-pressure flow regulating valve |
| CN201384866Y (en) * | 2009-02-10 | 2010-01-20 | 北京极易化工有限公司 | Vertical automatic reflux-withdrawal rectifying device |
| CN102933271A (en) * | 2011-03-14 | 2013-02-13 | 南京大学 | Rectification column for preventing thermal-sensitisation and rectification separation process for preventing thermal-sensitisation of natural material |
| CN203979614U (en) * | 2014-07-04 | 2014-12-03 | 中国西电电气股份有限公司 | A kind of inside screw non-rising stem type gate valve that can lock and indicate open/close states |
| CN207324121U (en) * | 2017-08-25 | 2018-05-08 | 河北国晨化工有限公司 | A kind of condensation reflux unit of versatic acid rectifying |
| CN207777664U (en) * | 2018-01-26 | 2018-08-28 | 山西隆达御威流体控制设备有限公司 | A kind of Outside screw stem rising through handwheel type gate valve |
| CN108775405A (en) * | 2018-08-27 | 2018-11-09 | 镇江华翔机电制造有限公司 | A kind of valve with flow control function |
| CN209662655U (en) * | 2019-01-25 | 2019-11-22 | 中国石化工程建设有限公司 | It is a kind of to provide the rectifying column of reflux by gravity |
| CN109966770A (en) * | 2019-04-29 | 2019-07-05 | 江山市双氧水有限公司 | A kind of novel three-in-one rectifying column process units of industry hydrogen peroxide enrichment facility |
| CN110141884A (en) * | 2019-05-27 | 2019-08-20 | 中冶焦耐(大连)工程技术有限公司 | The method and system of tower top regurgitant volume are controlled in tar production, benzene hydrogenation process |
| CN110170178A (en) * | 2019-05-27 | 2019-08-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of condensing unit distilling tower top |
| CN110393939A (en) * | 2019-09-05 | 2019-11-01 | 江苏美阳科技有限公司 | Precise electronic industry spent glycol depth rectifier unit |
| CN211462138U (en) * | 2019-12-13 | 2020-09-11 | 江苏民生特种设备集团有限公司 | Distillation column backflow limiting device |
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