CN210813993U - High-efficient rectifying column with combination formula liquid distributor - Google Patents
High-efficient rectifying column with combination formula liquid distributor Download PDFInfo
- Publication number
- CN210813993U CN210813993U CN201921161253.1U CN201921161253U CN210813993U CN 210813993 U CN210813993 U CN 210813993U CN 201921161253 U CN201921161253 U CN 201921161253U CN 210813993 U CN210813993 U CN 210813993U
- Authority
- CN
- China
- Prior art keywords
- liquid distributor
- tower body
- hole
- liquid
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a high-efficiency rectifying tower with a combined liquid distributor, which comprises a tower body, wherein the top of the tower body is provided with a gas outlet, and the bottom of the tower body is provided with a liquid outlet; a first liquid distributor, a first packing layer, a second liquid distributor and a second packing layer are sequentially arranged in the tower body from top to bottom; the first liquid distributor is an overflow type liquid distributor, and the second liquid distributor is a sieve-mesh type liquid distributor; the side wall of the tower body is provided with an air inlet pipe, and the air inlet pipe is positioned below the second packing layer; the interior of the first liquid distributor is of a hollow structure; the tower body lateral wall is equipped with inlet pipe and back flow, inlet pipe, back flow all communicate with first liquid distributor is inside. The utility model discloses a rectifying column simple structure, operation elasticity are good, difficult jam, can greatly eliminate the wall flow effect, make liquid and gaseous abundant even contact in packing to improve distillation efficiency.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment, specifically a high-efficient rectifying column with combination formula liquid distributor.
Background
The rectifying tower is a tower type vapor-liquid contact device for rectifying and mainly comprises a plate tower and a packed tower. The plate tower is a kind of stepped contact mass transfer equipment for gas-liquid or liquid-liquid system, and is formed from cylindrical tower body and several tower plates which are horizontally placed in the tower according to a certain spacing, and the packed tower is a mass transfer equipment using filler in the tower as gas-liquid two-phase contact member, and the tower body of the packed tower is a vertical cylinder, and its bottom portion is equipped with filler supporting plate, and the filler is placed on the supporting plate in the mode of random stacking or whole-building.
The packed tower belongs to continuous contact type gas-liquid mass transfer equipment, gas is fed from the bottom of the tower and continuously passes through gaps of a packing layer in a countercurrent mode with liquid, under a normal operation state, a gas phase is a continuous phase, a liquid phase is a dispersed phase, and in order to guarantee a two-phase mass transfer effect, the gas-liquid is guaranteed to be uniformly distributed on any cross section. In order to reduce the amplification effect caused by the liquid maldistribution and fully utilize the packing efficiency, a liquid distributor must be installed in the packed tower to distribute the liquid uniformly over the top of the packing layer. The quality of the initial distribution of liquid not only affects the mass transfer efficiency of the packing, but also affects the operational flexibility of the packing. Therefore, the liquid distributor is a very critical internal piece in the packed column.
A good distributor should have the advantages of uniform distribution of liquid, large free cross section for gas to pass through, small resistance, large operation elasticity, difficult blockage, difficult entrainment and foaming, easy manufacture and the like; at present, the types of distributors are various, the advantages and the disadvantages are different, and the distributors with the advantages are not easy to find. However, when the liquid flows downwards along the packing layer, the liquid tends to concentrate towards the tower wall gradually, a wall flow effect is formed, and gas-liquid two phases are unevenly distributed in the packing layer, so that the mass transfer efficiency is reduced. Therefore, when the packing layer is higher, the packing layer needs to be arranged in sections, and a gas-liquid redistribution device is arranged in the middle of the packing layer, so that the maldistribution of liquid or gas in the packing tower is eliminated, and the gas-liquid uniform distribution is realized.
Disclosure of Invention
The utility model aims at solving the problems existing in the prior art, providing a high-efficient rectifying tower with combined liquid distributor, solving the problems of low separation efficiency, easy blockage, complex structure and the like of the prior packed tower.
In order to achieve the above object, the utility model adopts the following technical scheme:
a high-efficiency rectifying tower with a combined liquid distributor comprises a tower body, wherein the top of the tower body is provided with an air outlet, and the bottom of the tower body is provided with a liquid outlet; a first liquid distributor, a first packing layer, a second liquid distributor and a second packing layer are sequentially arranged in the tower body from top to bottom; the first liquid distributor is an overflow type liquid distributor, and the second liquid distributor is a sieve-mesh type liquid distributor; the side wall of the tower body is provided with an air inlet pipe, and the air inlet pipe is positioned below the second packing layer; the interior of the first liquid distributor is of a hollow structure; the tower body lateral wall is equipped with inlet pipe and back flow, inlet pipe, back flow all communicate with first liquid distributor is inside.
Preferably, the first liquid distributor comprises a hollow plate, a plurality of concave surfaces and convex surfaces are uniformly distributed on the top surface of the hollow plate, and the concave surfaces and the convex surfaces are adjacently arranged; the bottom of the concave surface is provided with a water outlet hole, and a spraying device is arranged at the position of the bottom of the concave surface corresponding to the water outlet hole; the top of the convex surface is provided with a first through hole, and the bottom surface of the hollow plate is provided with a second through hole at a position corresponding to the first through hole; the first through hole and the second through hole are used for installing a vent pipe; the side walls of the concave surfaces are provided with a plurality of overflow holes, and the heights of the overflow holes on the concave surfaces are consistent; the overflow hole is positioned above the water outlet hole and below the first through hole.
Further, the spraying device comprises a drainage tube and a spraying head; the inlet of the drainage tube is communicated with the water outlet hole, and the outlet of the drainage tube is communicated with the spray head; the drainage tube runs through the middle part of the hollow plate.
Furthermore, a filter screen is arranged in the middle of the drainage tube and used for filtering solid impurities in the stock solution to avoid blocking the spray header.
Further, the top of breather pipe is higher than the top of convex surface, avoids the liquid level of stoste in the concave surface to be higher than the breather pipe top, leads to the stoste directly to flow from the breather pipe, causes the stoste to distribute unevenly.
Furthermore, a feed inlet and a return port are formed in the side wall of the hollow plate, the feed inlet is communicated with the feed pipe, and the return port is communicated with the return pipe; the contralateral at the feed inlet is established to the backward flow mouth, the backward flow mouth is used for retrieving the refluence liquid that produces to the cavity board in the rectification process.
Optionally, the cross section of the convex surface and the concave surface is arc-shaped.
Optionally, the cross sections of the convex surface and the concave surface are in a V shape or an inverted V shape.
Specifically, the second liquid distributor includes the sieve, a plurality of sieve meshes have evenly arranged on the sieve.
Compared with the prior art, the beneficial effects of the utility model are that: (1) the utility model discloses a be equipped with two-layer liquid distributor in the rectifying column, redistribute liquid, realized the even contact of liquid and packing to realize the abundant contact of liquid phase and gaseous phase, improved rectification efficiency; (2) the first liquid distributor of the utility model enables the stock solution to be evenly distributed and sprayed above the first packing layer in an overflow mode, thus improving the uniformity of the initial distribution of the stock solution, greatly improving the rectification efficiency and weakening the adverse effects of the amplification effect and the end effect; (3) the utility model discloses a first liquid distributor is through setting up concave surface and convex surface at cavity board top surface, and the concave surface is used for the overflow stoste, and the convex surface is used for setting up the breather pipe to reduce the influence that the gas-liquid flow interferes with each other.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high efficiency rectification column with a combined liquid distributor according to the present invention;
FIG. 2 is a schematic structural view of a first liquid distributor according to the present invention;
FIG. 3 is a schematic structural view of a second liquid distributor according to the present invention;
in the figure: 1. a tower body; 2. an air outlet; 3. a liquid outlet; 4. a first liquid distributor; 5. a first filler layer; 6. a second liquid distributor; 7. a second packing layer; 8. an air inlet pipe; 9. a feed pipe; 10. a return pipe; 11. a feed inlet; 12. a return port; 13. a water outlet hole; 14. a first through hole; 15. a second through hole; 16. a breather pipe; 17. an overflow hole; 18. a drainage tube; 19. a shower head; 20. a filter screen; 21. and (4) screening holes.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the embodiment provides a high-efficiency rectification tower with a combined liquid distributor, which includes a tower body 1, wherein the top of the tower body 1 is provided with an air outlet 2, and the bottom of the tower body is provided with a liquid outlet 3; a first liquid distributor 4, a first packing layer 5, a second liquid distributor 6 and a second packing layer 7 are sequentially arranged in the tower body 1 from top to bottom; the first liquid distributor 4 is an overflow type liquid distributor, and the second liquid distributor 6 is a sieve-mesh type liquid distributor; an air inlet pipe 8 is arranged on the side wall of the tower body 1, and the air inlet pipe 8 is positioned below the second packing layer 7; the interior of the first liquid distributor 4 is of a hollow structure; the tower body 1 lateral wall is equipped with inlet pipe 9 and back flow 10, inlet pipe 9, back flow 10 all communicate with first liquid distributor 4 is inside.
Preferably, the first liquid distributor 4 comprises a hollow plate, a plurality of concave surfaces and convex surfaces are uniformly distributed on the top surface of the hollow plate, and the concave surfaces and the convex surfaces are adjacently arranged; a water outlet hole 13 is formed in the bottom of the concave surface, and a spraying device is arranged at the position, corresponding to the water outlet hole 13, of the bottom of the concave surface; the top of the convex surface is provided with a first through hole 14, and the bottom surface of the hollow plate is provided with a second through hole 15 at a position corresponding to the first through hole 14; the first through hole 14 and the second through hole 15 are used for installing a vent pipe 16; the side walls of the concave surfaces are provided with a plurality of overflow holes 17, and the heights of the overflow holes 17 on the concave surfaces are consistent; the overflow hole 17 is located above the water outlet hole 13 and below the first through hole 14.
Further, the spraying device comprises a drainage tube 18 and a spraying head 19; the inlet of the drainage tube 18 is communicated with the water outlet hole 13, and the outlet of the drainage tube 18 is communicated with the spray header 19; the draft tube 18 passes through the middle of the hollow plate.
Further, a filter screen 20 is arranged in the middle of the drainage tube 18 and used for filtering solid impurities in the stock solution to avoid blocking the spray header 19.
Further, the top of the vent pipe 16 is higher than the top of the convex surface, so that the situation that the liquid level of the stock solution in the concave surface is higher than the top of the vent pipe 16, the stock solution directly flows out of the vent pipe 16, and the stock solution is unevenly distributed is avoided.
Furthermore, a feed inlet 11 and a return port 12 are formed in the side wall of the hollow plate, the feed inlet 11 is communicated with the feed pipe 9, and the return port 12 is communicated with the return pipe 10; the backflow port 12 is arranged on the opposite side of the feed port 11, and the backflow port 12 is used for recycling backflow liquid generated in the rectification process to the hollow plate.
Optionally, the cross section of the convex surface and the concave surface is arc-shaped.
Optionally, the cross sections of the convex surface and the concave surface are in a V shape or an inverted V shape.
Specifically, the second liquid distributor 6 comprises a sieve plate, and a plurality of sieve holes 21 are uniformly arranged on the sieve plate.
In this embodiment, the working process of the rectifying tower is as follows: injecting stock solution into the first liquid distributor 4 through a feeding pipe 9, and injecting gas into the bottom of the rectifying tower through an air inlet pipe 8; the stock solution is pumped into the hollow plate from the feed pipe 9 and the feed port 11, and the liquid level height of the stock solution in the hollow plate is consistent as the interior of the hollow plate is communicated; when the liquid level of the stock solution in the hollow plate reaches the overflow holes 17, the stock solution overflows from the overflow holes 17 into the concave surface on the upper surface of the hollow plate and flows out from the water outlet holes 13 at the bottom of the concave surface, and finally flows through the drainage tube 18 and is sprayed out from the spray header 19; liquid is redistributed through the second liquid distributor 6 after seeping out of the first packing layer 5, so that the liquid is uniformly distributed above the second packing layer 7, the liquid flows out of the liquid outlet 3 after seeping out of the second packing layer 7, one part of the liquid is converted into a liquid-phase product, and the other part of the liquid is heated and evaporated and then is injected into the distillation tower through the air inlet pipe 8; meanwhile, gas injected from the gas inlet pipe 8 below the rectifying tower sequentially passes through the second packing layer 7, passes through the sieve holes 21 of the second liquid distributor 6, passes through the first packing layer 5, enters the vent pipe 16 from the second through holes 15 of the first liquid distributor 4, flows out from the first through holes 14, reaches the top of the rectifying tower, flows out from the gas outlet 2, is partially converted into a gas-phase product, and is partially condensed and then flows back to the inside of the hollow plate through the return pipe 10 and the return port 12.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A high-efficiency rectifying tower with a combined liquid distributor comprises a tower body, wherein the top of the tower body is provided with an air outlet, and the bottom of the tower body is provided with a liquid outlet; the tower is characterized in that a first liquid distributor, a first packing layer, a second liquid distributor and a second packing layer are sequentially arranged in the tower body from top to bottom; the first liquid distributor is an overflow type liquid distributor, and the second liquid distributor is a sieve-mesh type liquid distributor; the side wall of the tower body is provided with an air inlet pipe, and the air inlet pipe is positioned below the second packing layer; the interior of the first liquid distributor is of a hollow structure; the tower body lateral wall is equipped with inlet pipe and back flow, inlet pipe, back flow all communicate with first liquid distributor is inside.
2. The high efficiency distillation column with combined liquid distributor according to claim 1, wherein the first liquid distributor comprises a hollow plate, a plurality of concave surfaces and convex surfaces are uniformly distributed on the top surface of the hollow plate, and the concave surfaces are arranged adjacent to the convex surfaces; the bottom of the concave surface is provided with a water outlet hole, and a spraying device is arranged at the position of the bottom of the concave surface corresponding to the water outlet hole; the top of the convex surface is provided with a first through hole, and the bottom surface of the hollow plate is provided with a second through hole at a position corresponding to the first through hole; the first through hole and the second through hole are used for installing a vent pipe; the side walls of the concave surfaces are provided with a plurality of overflow holes, and the heights of the overflow holes on the concave surfaces are consistent; the overflow hole is positioned above the water outlet hole and below the first through hole.
3. A high efficiency rectification column with a combined liquid distributor as set forth in claim 2 wherein said spray means includes a draft tube and a spray header; the inlet of the drainage tube is communicated with the water outlet hole, and the outlet of the drainage tube is communicated with the spray head; the drainage tube runs through the middle part of the hollow plate.
4. A high efficiency distillation column with combined liquid distributor according to claim 3, wherein the middle of said draft tube is provided with a filter screen.
5. A high efficiency distillation column with combined liquid distributor according to claim 2, wherein the top of the draft tube is higher than the top of the convex surface.
6. The high-efficiency rectification tower with the combined liquid distributor is characterized in that a feed port and a return port are formed in the side wall of the hollow plate, the feed port is communicated with a feed pipe, and the return port is communicated with a return pipe; the backflow port is arranged on the opposite side of the feed port.
7. A high efficiency distillation column with combined liquid distributor according to claim 2, wherein the convex and concave surfaces are arc shaped in cross section.
8. The high efficiency rectification column with combined liquid distributor as claimed in claim 2, wherein the cross section of the convex surface and the concave surface is V-shaped or A-shaped.
9. A high efficiency distillation column with combined liquid distributor according to claim 1, wherein the second liquid distributor comprises a sieve plate, wherein a plurality of sieve holes are uniformly arranged on the sieve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921161253.1U CN210813993U (en) | 2019-07-23 | 2019-07-23 | High-efficient rectifying column with combination formula liquid distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921161253.1U CN210813993U (en) | 2019-07-23 | 2019-07-23 | High-efficient rectifying column with combination formula liquid distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210813993U true CN210813993U (en) | 2020-06-23 |
Family
ID=71274142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921161253.1U Expired - Fee Related CN210813993U (en) | 2019-07-23 | 2019-07-23 | High-efficient rectifying column with combination formula liquid distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210813993U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111686471A (en) * | 2020-07-20 | 2020-09-22 | 贵州柏森香料有限公司 | Efficient-rectification packed tower |
| CN113941166A (en) * | 2021-11-11 | 2022-01-18 | 中冶焦耐(大连)工程技术有限公司 | Gas-liquid distribution device of packed tower |
| CN117643734A (en) * | 2024-01-29 | 2024-03-05 | 伊川宏源气体科技有限公司 | Rectifying tower for concentrating krypton-xenon liquid in liquid oxygen and production method |
-
2019
- 2019-07-23 CN CN201921161253.1U patent/CN210813993U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111686471A (en) * | 2020-07-20 | 2020-09-22 | 贵州柏森香料有限公司 | Efficient-rectification packed tower |
| CN113941166A (en) * | 2021-11-11 | 2022-01-18 | 中冶焦耐(大连)工程技术有限公司 | Gas-liquid distribution device of packed tower |
| CN117643734A (en) * | 2024-01-29 | 2024-03-05 | 伊川宏源气体科技有限公司 | Rectifying tower for concentrating krypton-xenon liquid in liquid oxygen and production method |
| CN117643734B (en) * | 2024-01-29 | 2024-04-09 | 伊川宏源气体科技有限公司 | Rectifying tower for concentrating krypton-xenon liquid in liquid oxygen and production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210813993U (en) | High-efficient rectifying column with combination formula liquid distributor | |
| US4909967A (en) | Liquid distributor assembly for packed tower | |
| CA1311187C (en) | Liquid distributor for packed tower | |
| US5051214A (en) | Double-deck distributor and method of liquid distribution | |
| US8517352B1 (en) | Liquid distributor | |
| US8348246B2 (en) | Fluid distribution system | |
| CN104524801B (en) | A kind of dispersion descending liquid sieve-plate tower | |
| CN220345106U (en) | Chlorine trifluoride liquid distributor | |
| EP0378408B1 (en) | Double-deck distributor | |
| CN211659298U (en) | Deacidification ammonia still | |
| CN202078765U (en) | Stripping tower | |
| CN210813994U (en) | High-efficiency liquid distributor for rectifying tower | |
| CN107551591A (en) | A kind of float valve plate distillation column for reducing mist | |
| CN211025190U (en) | Extracting reflux tower section of rectifying tower | |
| CN203030028U (en) | Calandria type liquid distributor and cooling tower using same | |
| US9463397B2 (en) | System and method for liquid distribution | |
| JPS6135801A (en) | Tower and gas/liquid contact method | |
| CN102309864A (en) | Distillation tower feeding distributor | |
| CN211863908U (en) | Gas-liquid distributor device of rectifying tower | |
| CN201271518Y (en) | Steam-liquid distributor of packing tower | |
| CN213222196U (en) | Reaction rectification column plate | |
| CN203355335U (en) | Novel slot type liquid distributor | |
| CN208154881U (en) | Liquid distributor with two-stage liquid separation chamber structure | |
| CN101912716A (en) | Tray type liquid mixed flow redistributor | |
| CN221014556U (en) | Dewatering device for ethanol aqueous solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20210723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |