CN212369604U - Single overflow sieve plate tower - Google Patents
Single overflow sieve plate tower Download PDFInfo
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- CN212369604U CN212369604U CN202020390014.XU CN202020390014U CN212369604U CN 212369604 U CN212369604 U CN 212369604U CN 202020390014 U CN202020390014 U CN 202020390014U CN 212369604 U CN212369604 U CN 212369604U
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- tower
- weir
- liquid
- sieve
- single overflow
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- 239000000463 material Substances 0.000 abstract description 4
- 230000005587 bubbling Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 11
- 230000004048 modification Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 238000013461 design Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
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- 239000003546 flue gas Substances 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000000746 purification Methods 0.000 description 1
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Abstract
The utility model discloses a single overflow sieve plate tower, including the tower body that has the inner chamber, locate the feed liquor pipe at tower body top, locate the intake pipe of tower body bottom and a plurality of locate the sieve in the inner chamber, the sieve is the downward sloping setting. The utility model discloses a single overflow sieve tray tower is the downward sloping setting through setting up the sieve for the flow of liquid layer on the sieve is easier, does not need the import weir to have higher liquid level height to flow in order to promote the liquid layer, and liquid layer thickness on the sieve is more even simultaneously, and gas bubbling is also more even like this, and the mass transfer heat transfer is even, and gas-liquid separation effect is high, makes the rectification effect better like this, is favorable to improving air separation device's product extraction rate, can satisfy the demand in market, has important economic benefits. Moreover, for the material with high physical viscosity, the single overflow sieve plate tower disclosed by the embodiment has the advantages of larger advantage, better rectification effect and larger application space.
Description
Technical Field
The utility model relates to an air separation plant field especially relates to a single overflow sieve plate tower.
Background
The tower is an important gas-liquid and liquid-liquid heat and mass transfer device and is widely applied to the material separation process in the industries of chemical engineering, oil refining, pharmacy, environmental protection and the like. The method can be divided into a plate tower and a packed tower according to the contact form of gas and liquid phases. The plate tower is in a step-by-step contact type, and the packed tower is in a differential contact type. Both types of distillation columns have application in air separation plants. At present, sieve plates are adopted more under 6 ten thousand grades at home and abroad, and fillers are adopted more under 6 ten thousand grades. The sieve plate tower is mainly classified into a circulating tower and a convection tower, wherein the convection tower is divided into a single overflow, a double overflow and a four overflow, the geometric shape of the sieve plate depends on the diameter of the tower and the liquid load, and when the liquid load is large, the corresponding overflow process number is large.
With the continuous upgrading of the device scale of the air separation equipment, the size of the rectifying tower is also increased, and the sieve plate tower has an important function in the rectifying field as an important air separation equipment. For the sieve plate tower, innovations are taken as main lines at home and abroad, and respective characteristics and advantages are formed while continuous exploration, active practice and development are carried out. It places higher demands on the design, manufacture, transport and installation to ensure efficient operation of the tower. However, the liquid layer of the sieve plate of the existing sieve plate tower is not uniform, the rectification effect is poor, and the market demand cannot be met.
Therefore, there is a need to provide a new sieve plate tower to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model discloses a single overflow sieve plate tower for solve the problem that the liquid layer of sieve plate tower sieve at present is inhomogeneous, and the rectification effect is relatively poor, can not satisfy the demand in market.
The purpose of the utility model is realized by adopting the following technical scheme:
the utility model provides a single overflow sieve plate tower, is including the tower body that has the inner chamber, locate the feed liquor pipe at tower body top, locate the intake pipe and a plurality of tower body bottom are located sieve in the inner chamber, the sieve is the downward sloping setting.
As an improvement mode, the included angle between each sieve plate and the horizontal plane is alpha, and alpha is more than 3 degrees and less than 8 degrees.
As an improved mode, the single-overflow sieve plate tower further includes an inlet weir and an outlet weir, each sieve plate has a higher end and a lowest end, the lowest end and the inner side wall of the tower body enclose to form a liquid descending port, the inlet weir is disposed on the upper surface of the higher end and encloses with the inner side wall of the tower body to form an overflow trough, and the outlet weir is disposed on the upper surface of the lowest end.
As an improvement, the inlet weir is arc-shaped and/or the outlet weir is arc-shaped.
As an improvement mode, the inlet weir is provided with a sieve hole in a penetrating way and/or the outlet weir is provided with a sieve hole in a penetrating way.
As an improvement mode, single overflow sieve plate tower still includes and keeps off the liquid weir, the sieve is including being close to the first sieve of feed liquor pipe, it locates to keep off the liquid weir the feed liquor pipe with between the first sieve, it is located to keep off the liquid weir the import weir is kept away from one side of tower body inside wall, the lower extreme that keeps off the liquid weir is less than and is located keep off the liquid weir below the upper end of import weir.
As an improved mode, the single-overflow sieve plate tower further comprises a down-flow plate, the down-flow plate is arranged on the lower surface of the lowest end, and the lower end of the down-flow plate is lower than the upper end of the inlet weir located below the down-flow plate.
As an improvement mode, the single-overflow sieve plate tower further comprises a clamp arranged on the inner wall surface of the tower body, and the sieve plate is fixed on the inner wall surface of the tower body through the clamp.
As an improvement, the single overflow sieve plate tower further comprises a gas lift pipe arranged at the top of the tower body, and the gas lift pipe is provided with a gas suction port positioned above the liquid inlet pipe.
As an improved mode, the single-overflow sieve plate tower further comprises a liquid suction pipe arranged at the bottom of the tower body, and the liquid suction pipe is provided with a liquid suction port located below the air inlet pipe.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a single overflow sieve plate tower is the downward sloping setting through setting up the sieve for the flow of liquid layer on the sieve is easier, does not need import weir to go out to have higher liquid level height to flow in order to promote the liquid layer, and liquid layer thickness on the sieve is more even simultaneously, and gas bubbling is also more even like this, and the mass transfer heat transfer is even, and the gas-liquid separation effect is high, makes the rectification effect better like this, is favorable to improving air separation device's product extraction rate. Experiments show that the limit efficiency of the single-overflow sieve plate tower disclosed by the embodiment is improved by 80% from 70% compared with the existing horizontal sieve plate tower, and the single-overflow sieve plate tower has important economic benefits. Moreover, for the material with high physical viscosity, the single overflow sieve plate tower disclosed by the embodiment has the advantages of larger advantage, better rectification effect and larger application space.
Drawings
Fig. 1 is a schematic structural diagram of a single overflow sieve plate tower disclosed in an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a partial structure of a single overflow sieve plate tower disclosed in an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
Referring to fig. 1 and 2, a single overflow sieve plate tower 100 according to an embodiment of the present invention includes a tower body 10 having an inner cavity 11, a liquid inlet pipe 20 disposed at the top of the tower body 10, an air inlet pipe 30 disposed at the bottom of the tower body 10, and a plurality of sieve plates 40 disposed in the inner cavity 11, wherein the sieve plates 30 are disposed in a downward inclined manner.
When this single overflow sieve plate tower 100 uses, the flue gas of taking impurity gets into tower body 10 by intake pipe 30, liquid gets into tower body 10 by feed liquor pipe 20, the air current that gets into tower body 10 sharply upwards turns round, and reduce the sinking speed, thicker impurity is thrown away under the effect of inertia, and collide with the liquid that falls on sieve 40, taken away by liquid, thinner impurity rises along with the air current, when passing through sieve 40, blow up into the liquid layer on sieve 40 and turbulent flow acutely, the foam bed of boiling form, the area of contact of gas with liquid has been increased, therefore, most impurity is washed down by liquid and is come to discharge from tower body 10 bottom, the flue gas after the purification is discharged from the top of tower body 10.
The single overflow sieve plate tower 100 disclosed by the embodiment is downward inclined through the sieve plate 40, so that the liquid layer flows more easily on the sieve plate 40, the liquid layer is higher in liquid level and flows by pushing the liquid layer without entering the weir, the thickness of the liquid layer on the sieve plate 40 is more uniform, the gas bubbling is more uniform, the mass transfer and heat transfer are uniform, the gas-liquid separation effect is high, the rectification effect is better, and the product extraction rate of the air separation device is favorably improved. Experiments show that the limit efficiency of the single-overflow sieve plate tower 100 disclosed by the embodiment can be improved from 70% to 80% compared with the existing horizontal sieve plate tower, and the single-overflow sieve plate tower has important economic benefits. Moreover, for the material with high physical viscosity, the single overflow sieve plate tower 100 disclosed in this embodiment has greater advantages, better rectification effect, and larger applicable space.
As a modification of this embodiment, each screen deck 40 is at an angle α with respect to the horizontal, 3 ° < α < 8 °. Specifically, the size of the included angle α is determined according to the length of the liquid flow, and the flow length is long, the angle is small, the flow length is short, and the angle is large.
As a modification of this embodiment, the single overflow screen plate tower 100 further includes an inlet weir 50 and an outlet weir 60, each screen plate 40 has a higher end 41 and a lower end 42, the lower end 42 and the inner sidewall of the tower body 10 enclose to form a liquid descending port 101, the inlet weir 50 is disposed on the upper surface of the higher end 41 and encloses with the inner sidewall of the tower body 10 to form an overflow trough 102, and the outlet weir 60 is disposed on the upper surface of the lower end 42.
As a modification of this embodiment, the inlet weir 50 has a circular arc shape. With this design, by designing the inlet weir 50 to be circular-arc, the liquid flow is easier, the liquid non-flow area is reduced, and the utilization rate of the single overflow sieve plate tower 100 is improved. Specifically, the end of the inlet weir 50 distal from the screen deck 40 extends in an arc toward the outlet weir 60.
As a modification of this embodiment, the outlet weir 60 has a circular arc shape. Similarly, by designing the outlet weir 60 to be arc-shaped, the liquid flows more easily, the liquid stagnant areas are reduced, and the utilization rate of the single overflow sieve plate tower 100 is improved. Specifically, the end of the outlet weir 60 remote from the screen deck 10 extends in a circular arc in a direction away from the inlet weir 50.
As a modification of this embodiment, the inlet weir 50 is perforated with a mesh. With this design, through setting up import weir 50 and run through and seted up the sieve mesh, make the utilization ratio increase of import weir 50, the rectification efficiency improves a lot, and the velocity of flow of liquid is not much simultaneously, so the component purity of liquid also is close, and the utilization ratio of sieve 40 improves a lot.
As a modification of this embodiment, the outlet weir 60 is perforated with a mesh. Similarly, the sieve mesh is arranged through the outlet weir 60, so that the utilization rate of the outlet weir 60 is increased, the rectification efficiency is improved a lot, and the flow speed of the liquid is not much, so that the component purity of the liquid is also close, and the utilization rate of the sieve plate 40 is improved a lot.
As a modification of this embodiment, the single overflow sieve plate tower 100 further includes a liquid blocking weir 70, the sieve plate 40 includes a first sieve plate 40a close to the liquid inlet pipe 20, the liquid blocking weir 70 is disposed between the liquid inlet pipe 20 and the first sieve plate 40a, the liquid blocking weir 70 is located on a side of the inlet weir 50 far away from the inner side wall of the tower body 10, and a lower end of the liquid blocking weir 70 is lower than an upper end of the inlet weir 50 below the liquid blocking weir 70. In this design, the inlet weir 50 may form a liquid seal against the weir 70, so that the liquid is evenly distributed after flowing into the screen 40.
As a modification of this embodiment, the single overflow tray tower 100 further includes a downcomer 80, the downcomer 80 is disposed on the lower surface of the lowermost end 42, and the lower end of the downcomer 80 is lower than the upper end of the inlet weir 50 below the downcomer 80. In this design, the inlet weir 50 can form a liquid seal with the downcomer 80, so that the liquid is uniformly distributed after flowing into the screen 40.
As a modification of this embodiment, the single-overflow sieve-plate tower 100 further includes a clamp 90 disposed on an inner wall surface of the tower body 10, and the sieve plate 40 is fixed to the inner wall surface of the tower body 10 through the clamp 90. In this design, the screen plate 40 is fixed to the inner wall surface of the tower body 10 by the clips 90, which is very convenient for the assembly and disassembly of the screen plate 40 and for the installation and maintenance.
As a modification of this embodiment, the single overflow tray tower 100 further includes a gas lift pipe 103 disposed at the top of the tower body 10, and the gas lift pipe 103 has a gas suction port 1031 located above the liquid inlet pipe 20.
As a modification of this embodiment, the single overflow tray tower 100 further includes a liquid suction pipe 104 disposed at the bottom of the tower body 10, and the liquid suction pipe 104 has a liquid suction port 1041 located below the air inlet pipe 30.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. The utility model provides a single overflow sieve plate tower which characterized in that, including the tower body that has the inner chamber, locate the feed liquor pipe at tower body top, locate the intake pipe and a plurality of tower body bottom are located sieve in the inner chamber, the sieve is the downward sloping setting.
2. The single overflow tray tower of claim 1 wherein each of said trays is at an angle α, 3 ° < α < 8 ° from horizontal.
3. The single overflow tray tower of claim 2, further comprising an inlet weir and an outlet weir, each of said trays having a higher end and a lower end, said lower end defining a downcomer opening with the inside walls of said tower, said inlet weir being disposed on the upper surface of said higher end and defining an overflow trough with the inside walls of said tower, said outlet weir being disposed on the upper surface of said lower end.
4. The single overflow tray tower of claim 3, wherein the inlet weir is radiused and/or the outlet weir is radiused.
5. The single overflow tray column of claim 4, wherein the inlet weir is perforated with mesh openings and/or the outlet weir is perforated with mesh openings.
6. The single overflow tray tower of claim 3, further comprising a liquid blocking weir, wherein the screen plate comprises a first screen plate adjacent to the liquid inlet pipe, the liquid blocking weir is disposed between the liquid inlet pipe and the first screen plate, the liquid blocking weir is disposed on a side of the inlet weir away from the inner sidewall of the tower body, and a lower end of the liquid blocking weir is lower than an upper end of the inlet weir below the liquid blocking weir.
7. The single overflow tray tower of claim 3, further comprising a downcomer plate disposed on a lower surface of the lowermost end, a lower end of the downcomer plate being lower than an upper end of the inlet weir located below the downcomer plate.
8. The single overflow tray tower of claim 1, further comprising a clamp disposed on an inner wall surface of the tower body, wherein the screen plate is secured to the inner wall surface of the tower body by the clamp.
9. The single overflow tray tower of claim 1, further comprising a gas riser at the top of the tower body, the gas riser having a gas inlet positioned above the liquid inlet pipe.
10. The single overflow tray tower of claim 1, further comprising a liquid extraction tube disposed at the bottom of the tower body, the liquid extraction tube having a liquid extraction port located below the air inlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390014.XU CN212369604U (en) | 2020-03-24 | 2020-03-24 | Single overflow sieve plate tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020390014.XU CN212369604U (en) | 2020-03-24 | 2020-03-24 | Single overflow sieve plate tower |
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| Publication Number | Publication Date |
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| CN212369604U true CN212369604U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020390014.XU Active CN212369604U (en) | 2020-03-24 | 2020-03-24 | Single overflow sieve plate tower |
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| CN (1) | CN212369604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330303A (en) * | 2020-03-24 | 2020-06-26 | 深圳市海格金谷工业科技有限公司 | Single overflow sieve plate tower |
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2020
- 2020-03-24 CN CN202020390014.XU patent/CN212369604U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330303A (en) * | 2020-03-24 | 2020-06-26 | 深圳市海格金谷工业科技有限公司 | Single overflow sieve plate tower |
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| GR01 | Patent grant | ||
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Address after: No. 27-28, 7th floor, building 12, Shenzhen Bay science and technology ecological park, No. 18, South Keji Road, high tech community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Haige Jingu Industrial Technology Co.,Ltd. Address before: No. 27-28, 7th floor, building 12, Shenzhen Bay science and technology ecological park, No. 18, South Keji Road, high tech community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN THRESHOLD INDUSTRIAL TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |