CN212262429U - Propylene light component stripping tower - Google Patents
Propylene light component stripping tower Download PDFInfo
- Publication number
- CN212262429U CN212262429U CN202020882557.3U CN202020882557U CN212262429U CN 212262429 U CN212262429 U CN 212262429U CN 202020882557 U CN202020882557 U CN 202020882557U CN 212262429 U CN212262429 U CN 212262429U
- Authority
- CN
- China
- Prior art keywords
- spiral
- propylene
- pipe
- stripping tower
- rotary cylinder
- 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
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- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 56
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 17
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- 239000012535 impurity Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 208000021760 high fever Diseases 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a propylene light component strip tower relates to propylene and draws technical field. The utility model comprises a stripping tower body and a steam reboiler; a spiral leading-in device is arranged at the bottom of the stripping tower body; the spiral leading-in device comprises an inverted T-shaped pipe, a rotary cylinder and a plurality of spiral pipes; the opening end of the rotary cylinder is rotatably arranged on the outer peripheral side of the narrow section of the inverted T-shaped pipe; a plurality of spiral pipes are annularly and uniformly distributed on the periphery of the rotary cylinder; the bottom end of the spiral tube is communicated with the inside of the rotary cylinder, the high end of the spiral tube is sealed, and a plurality of air holes are formed in the inner side of the spiral tube. The high-temperature steam is discharged into the propylene liquid through the air holes on the inner side of the spiral pipe, and the spiral pipe and the rotary cylinder are driven to rotate spirally by the reaction force of the steam and the propylene liquid, so that the propylene liquid is driven to form a vortex, the high-pressure high-temperature steam is quickly and fully mixed with the propylene liquid, and the steam stripping mass transfer efficiency is improved; in addition, the spiral pipe drives the formed vortex to accelerate the gas in the propylene solution to be discharged upwards spirally.
Description
Technical Field
The utility model belongs to the technical field of propylene draws, especially relate to a propylene light component strip tower.
Background
Propylene is commercially produced from polypropylene in a polypropylene reactor, wherein the propylene obtained contains impurity gases such as oxygen, hydrogen, etc. Therefore, a stripping tower is often used to purify and remove impurities from propylene produced in a polypropylene reactor. The liquid propylene raw material to be purified enters from the middle upper part of the stripping tower, and the bottom of the stripping tower is provided with a steam reboiler for providing a heat source to gasify the propylene. The top of the stripping tower is provided with a condenser, the gas-phase propylene is precooled and liquefied to return to the bottom of the stripping tower, and the boiling point of the impurity gases such as oxygen, hydrogen and the like is low and is discharged from the top of the stripping tower.
In the actual operation process, high-heat water vapor is introduced into the propylene liquid, so that gas impurities such as hydrogen, oxygen and the like in the propylene liquid are discharged and raised, and simultaneously, gas-phase propylene is also discharged and raised; in the process, the mixing degree of the water vapor and the propylene liquid influences the mass transfer efficiency of the steam stripping; the quick abundant mixing, gas impurities such as can efficient heat transfer, efficient discharge hydrogen, oxygen. Therefore, the existing stripping tower needs a device capable of rapidly and efficiently mixing high-heat water vapor and propylene liquid.
In order to solve the problem, the utility model provides a light component stripping tower of propylene realizes the high-heat steam and the high-efficient mixing of propylene liquid.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a propylene light component strip tower, through high hot steam through the inboard bleeder vent of spiral pipe arrange propylene liquid, steam drives down with the reaction force of propylene liquid for spiral pipe and a rotatory section of thick bamboo spiral rotation, and then drive propylene liquid and form the vortex, mix high-pressure high temperature steam fast abundant with propylene liquid, solved the problem that mass transfer efficiency is low that current high hot steam and propylene liquid can not high-efficient abundant mixing lead to.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a propylene light component stripping tower, which comprises a stripping tower body and a steam reboiler, wherein the steam reboiler is connected with the bottom of the stripping tower body through a vent pipe;
a spiral leading-in device is arranged at the bottom of the stripping tower body; the spiral leading-in device comprises an inverted T-shaped pipe, a rotary cylinder and a plurality of spiral pipes; the inverted T-shaped pipe is fixedly arranged at the bottom of the stripping tower body; the opening end of the rotary cylinder is rotatably arranged on the outer peripheral side of the narrow section of the inverted T-shaped pipe; the spiral pipes are annularly and uniformly distributed on the periphery of the rotary cylinder; the bottom end of the spiral pipe is communicated with the inside of the rotary cylinder, and the high end of the spiral pipe is closed; a plurality of air holes are formed in the inner side of the spiral pipe; the vent pipe passes through the side wall of the stripping tower body and is communicated with the inverted T-shaped pipe.
Preferably, along the bottom end to the high end of the spiral pipe, the diameters of the air holes are gradually increased, and the distance between two adjacent air holes is gradually reduced.
Preferably, a plurality of air guide pipes are uniformly distributed and communicated at the wide section part of the inverted T-shaped pipe; the distance between the tail end of the air duct and the inner wall of the stripping tower body is smaller than the distance between the spiral tube and the inner wall of the stripping tower body.
Preferably, a side plate is fixed on the side surface of the tail end part of the air duct; one side of the side plate is connected with the edge of a transverse plate of the L-shaped sealing plate through a spring; a transverse plate of the L-shaped sealing plate is hinged with the side wall of the air guide pipe; the transverse plate of the L-shaped sealing plate seals the tail end of the air guide pipe.
The utility model discloses an aspect has following beneficial effect:
1. the utility model discloses a high fever high pressure gas that steam reboiler produced enters into rotatory section of thick bamboo through the trachea, and high fever steam is arranged in propylene liquid through the bleeder vent of spiral pipe inboard, and under the reaction force drive of steam and propylene liquid, make spiral pipe and rotatory section of thick bamboo spiral rotation, and then drive propylene liquid and form the vortex, mix high pressure high temperature steam with propylene liquid fast fully, improve the strip mass transfer efficiency, convenient and practical; in addition, the spiral pipe drives the formed vortex to accelerate the gas in the propylene solution to be discharged upwards spirally.
2. With the formation of the vortex, the utility model has less liquid in the middle part and more propylene liquid far away from the central part; the air holes close to the outer side are dense, the aperture is increased, and the air holes can be quickly and efficiently mixed with propylene, so that the utilization rate of water vapor heat is improved; secondly, can provide more sufficient power for the spiral pipe spiral rotation.
3. In the natural state of the utility model, the soft rubber layer of the L-shaped sealing plate seals the tail end of the air duct under the action of the spring elasticity; after the vortex produced, centrifugal force increased gradually, and the riser of L shape closing plate extrudees the spring under rivers promote, and around rotating around the pin joint, the end is opened to the air duct, realizes that high fever vapor mixes with the propylene liquid of border position.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a propylene light component stripper of the present invention;
FIG. 2 is a schematic structural view of a spiral lead-in device in the propylene light component stripping tower of the present invention;
FIG. 3 is a schematic structural view of an air duct installed around an inverted T-shaped tube in the propylene light component stripping tower of the present invention;
FIG. 4 is an enlarged view of A in FIG. 3;
in the drawings, the components represented by the respective reference numerals are listed below:
the method comprises the following steps of 1-stripping tower body, 2-steam reboiler, 21-vent pipe, 41-inverted T-shaped pipe, 41-rotary cylinder, 43-spiral pipe, 431-vent hole, 44-air guide pipe, 441-side plate, 442-spring and 443-L-shaped sealing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "middle", "length", "inner", etc. indicate positional or orientational relationships and are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1-4, the present invention relates to a propylene light component stripper, comprising: the steam stripping tower comprises a stripping tower body 1 and a steam reboiler 2, wherein the steam reboiler 2 is connected with the bottom of the stripping tower body 1 through a vent pipe 21; a spiral lead-in device is arranged at the bottom of the stripping tower body 1; the spiral guiding device comprises an inverted T-shaped pipe 41, a rotary cylinder 42 and a plurality of spiral pipes 43, wherein the number of the spiral pipes is 5 in the embodiment; the inverted T-shaped pipe 41 is fixedly arranged at the bottom of the stripping tower body 1; the opening end of the rotating cylinder 42 is rotatably installed at the outer periphery side of the narrow section of the inverted T-shaped pipe 41, specifically, a sealing gasket for sealing is arranged between the rotating cylinder 42 and the narrow section of the inverted T-shaped pipe 41 to ensure the air tightness in the rotating cylinder 42; the five spiral pipes 43 are annularly and uniformly distributed on the peripheral side of the rotary cylinder 42; the bottom end of the spiral pipe 43 is communicated with the inside of the rotary cylinder 42, and the high end of the spiral pipe 43 is sealed; a plurality of air holes 431 are formed in the inner side of the spiral pipe 43; the vent pipe 21 penetrates through the side wall of the stripping tower body 1 and is communicated with the inverted T-shaped pipe 41; in actual use: high-heat high-pressure gas generated by the steam reboiler 2 enters the rotary cylinder 42 through the vent pipe 21, high-heat water vapor is discharged into propylene liquid through the vent hole 431 in the inner side of the spiral pipe 43, the spiral pipe 43 and the rotary cylinder 42 are driven to rotate spirally under the driving of the reaction force of the water vapor and the propylene liquid, the propylene liquid is driven to form a vortex, the high-pressure high-temperature water vapor is quickly and fully mixed with the propylene liquid, the stripping mass transfer efficiency is improved, and the steam stripping device is convenient and practical; in addition, the spiral pipe 43 drives the formed vortex to accelerate the gas in the propylene solution to be discharged upwards.
The second embodiment is as follows:
referring to fig. 2-4, along the bottom end of the spiral tube 43 to the high end, the diameter of the air holes 431 gradually increases and the distance between two adjacent air holes 431 gradually decreases; as the vortex formed, the amount of liquid in the middle was less and more propylene liquid was located away from the center; the air holes 431 close to the outer side are dense, the aperture is increased, and the air holes can be quickly and efficiently mixed with propylene, so that the utilization rate of water vapor heat is improved; secondly, it is possible to provide more sufficient power for the spiral rotation of the spiral pipe 43.
Wherein, the wide section of the inverted T-shaped pipe 41 is uniformly communicated with a plurality of air ducts 44; the distance between the tail end of the gas guide tube 44 and the inner wall of the stripping tower body 1 is less than the distance between the spiral tube 43 and the inner wall of the stripping tower body 1; during practical use, the tail end of the air duct 44 is close to the edge of the stripping tower body 1, high-heat water vapor is mixed with propylene liquid at the edge, and the stripping mass transfer efficiency is improved.
In addition, a side plate 441 is fixed on the side surface of the tail end part of the air duct 44; one side of the side plate 441 is connected with the edge of a transverse plate of the L-shaped sealing plate 443 through a spring 442, the transverse plate of the L-shaped sealing plate 443 is hinged with the side wall of the air guide pipe 44, and a soft rubber layer is arranged on the outer side of the transverse plate of the L-shaped sealing plate 443 for sealing; the soft rubber layer of the L-shaped sealing plate 443 seals the end of the air duct 44; in a natural state, under the action of the elastic force of the spring 442, the soft rubber layer of the L-shaped sealing plate 443 seals the tail end of the air duct 44; when the vortex is generated and the centrifugal force is gradually increased, the vertical plate of the L-shaped sealing plate 443 is pushed by water flow to press the spring 442 and rotate around the hinge point, the tail end of the air duct 44 is opened, and high-heat water vapor is mixed with the propylene liquid at the edge position.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A propylene light component stripping tower comprises a stripping tower body (1) and a steam reboiler (2), and is characterized in that the steam reboiler (2) is connected with the bottom of the stripping tower body (1) through a vent pipe (21);
a spiral leading-in device is arranged at the bottom of the stripping tower body (1); the spiral leading-in device comprises an inverted T-shaped pipe (41), a rotary cylinder (42) and a plurality of spiral pipes (43); the inverted T-shaped pipe (41) is fixedly arranged at the bottom of the stripping tower body (1); the opening end of the rotary cylinder (42) is rotatably arranged on the outer peripheral side of the narrow section of the inverted T-shaped pipe (41); the spiral pipes (43) are annularly and uniformly distributed on the periphery of the rotary cylinder (42); the bottom end of the spiral pipe (43) is communicated with the inside of the rotary cylinder (42), and the high end of the spiral pipe (43) is closed; a plurality of air holes (431) are formed in the inner side of the spiral pipe (43); the vent pipe (21) penetrates through the side wall of the stripping tower body (1) and is communicated with the inverted T-shaped pipe (41).
2. The stripping column for propylene light components as claimed in claim 1, wherein the diameter of said airing holes (431) is gradually increased and the distance between two adjacent airing holes (431) is gradually decreased from the bottom end to the top end of said spiral tube (43).
3. The propylene light component stripping tower as claimed in claim 1 or 2, wherein a plurality of gas-guide tubes (44) are uniformly communicated with the wide section of the inverted T-shaped tube (41); the distance between the tail end of the gas guide pipe (44) and the inner wall of the stripping tower body (1) is less than the distance between the spiral pipe (43) and the inner wall of the stripping tower body (1).
4. A propylene lights stripper as defined in claim 3, wherein the gas-guiding tube (44) is fixed at its end portion with a side plate (441); one side of the side plate (441) is connected with the edge of a transverse plate of the L-shaped sealing plate (443) through a spring (442); the transverse plate of the L-shaped sealing plate (443) is hinged with the side wall of the air duct (44); the L-shaped sealing plate (443) seals the end of the airway tube (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020882557.3U CN212262429U (en) | 2020-05-22 | 2020-05-22 | Propylene light component stripping tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020882557.3U CN212262429U (en) | 2020-05-22 | 2020-05-22 | Propylene light component stripping tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212262429U true CN212262429U (en) | 2021-01-01 |
Family
ID=73879362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020882557.3U Expired - Fee Related CN212262429U (en) | 2020-05-22 | 2020-05-22 | Propylene light component stripping tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212262429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350494A (en) * | 2022-07-20 | 2022-11-18 | 内蒙古鄂尔多斯化学工业有限公司 | Sectional stripping device and sectional stripping method |
-
2020
- 2020-05-22 CN CN202020882557.3U patent/CN212262429U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350494A (en) * | 2022-07-20 | 2022-11-18 | 内蒙古鄂尔多斯化学工业有限公司 | Sectional stripping device and sectional stripping method |
| CN115350494B (en) * | 2022-07-20 | 2024-04-05 | 内蒙古鄂尔多斯化学工业有限公司 | Sectional stripping device and sectional stripping method |
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| 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: 20210101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |