CN201182915Y - Spraying overflow tower disk structure - Google Patents
Spraying overflow tower disk structure Download PDFInfo
- Publication number
- CN201182915Y CN201182915Y CNU2008200289628U CN200820028962U CN201182915Y CN 201182915 Y CN201182915 Y CN 201182915Y CN U2008200289628 U CNU2008200289628 U CN U2008200289628U CN 200820028962 U CN200820028962 U CN 200820028962U CN 201182915 Y CN201182915 Y CN 201182915Y
- Authority
- CN
- China
- Prior art keywords
- tray
- tower
- tower tray
- layer
- sieve aperture
- 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
- 238000005507 spraying Methods 0.000 title abstract 5
- 239000007791 liquid phase Substances 0.000 claims abstract description 22
- 239000012071 phase Substances 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims description 18
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 14
- 230000007547 defect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 22
- 238000004821 distillation Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005292 vacuum distillation Methods 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 2
- 238000007701 flash-distillation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Images
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a spraying and overflowing tray structure, which is provided with a plurality of sieve trays arranged in a tower vessel in a separating way from top to bottom, at least one outlet weir is arranged on each sieve tray, the space between each sieve tray and the lower adjacent tray is the spraying space of the liquid phase of the tray, an overflowing opening of the liquid phase of the tray is formed at the outlet weir of each sieve tray, the overflowing opening of the liquid phase of each sieve tray and the overflowing opening of the upper adjacent tray and the lower adjacent tray are transversely arranged along a diameter line of the tray in an alternating way, to form a S-shaped gas phase raising channel. The spraying and overflowing tray structure has the advantages that the structure of the sieve tray is simple, the cost is low, the defect that the mass transferring efficiency of the prior sieve tray is low can be overcome, to ensure that the advantage of the structure of the sieve tray is more obvious. In addition, the structure of the tray changes the mass transferring principle of the structure of the ordinary tray, the tray can be operated under the condition that the air pressure is very small, and the spraying and overflowing tray structure is particularly suitable for the pressure reduction distilling and the depth flash distilling process.
Description
Technical field
The utility model relates to a kind of tray structure that is used for chemical tower, and specifically, it is a kind of spray overflow tray structure.
Background technology
In prior art, be located at common tray structure in the chemical tower referring to Fig. 6, a side of tower tray 10 is provided with the downspout 11 of upper strata tower tray, and opposite side is provided with the downspout 13 of exit weir 12 and this layer tower tray.According to the different requirements to the product mass transfer, tower tray 10 can adopt float valve tray, sieve aperture tower tray, solid valve tower tray or the like.Wherein the sieve aperture tower tray with make easily, cost is low and be widely used.With the sieve aperture tower tray is example, when it is used for general distillation process, its course of work is: supernatant liquid drops to this layer tower tray 10 from downspout 11, then along the cross-current of tower tray 10 to exit weir 12, gas phase rises from the tower tray below, by sieve aperture flowing liquid bubbling on tower tray, carries out the gas-liquid contact mass transfer, the liquid that overflows from exit weir drops to lower floor's tower tray by this layer downspout, carries out gas, the liquid mass transfer of lower floor.Though the sieve aperture tower tray is simple in structure, cost is low, but from mass-transfer efficiency, not as float valve tray, solid valve tower tray etc.,, gas phase passes liquid because flinging sieve aperture, and shorter with the time of contact of liquid, and float valve tray or solid valve tower tray etc. can both form covering in the direction that flings of gas, the gas of rising is run into turn to behind the valve and laterally entered liquid, thereby the increase gas-liquid contact time is so they are than the mass-transfer efficiency height of sieve aperture tower tray.But, it is occupied a tiny space always in numerous tower trays because the sieve aperture tray structure is simple and advantage cheaply.
When above-mentioned existing tray structure is used for vacuum distillation process (Δ P is less), be difficult to adapt to the too small situation of pressure drop, this is because gas phase will be by the valve on the tower tray or sieve aperture and to the liquid bubbling, so that the pressure of gas phase can not drop to was low, in application process, exist the excessive problem of pressure drop.But the neither one series of solutions makes above-mentioned tray structure increase unnecessary power consumption when being used for vacuum distillation process at present.
When if above-mentioned tray structure is applied to degree of depth flash process (liquid phase is big, gas phase is little), because gas phase is less, so several valves or a spot of sieve aperture can only be set on the tower tray, valve is few more, and gas, liquid contact few more, and mass transfer effect is poor more.Therefore, the mass-transfer efficiency that improves degree of depth flash process is that present people expect the problem that solves.
The utility model content
The purpose of this utility model is problem and the low problem of existing sieve aperture tower tray mass-transfer efficiency that is unsuitable for decompression distillation and degree of depth flash distillation at existing tray structure, a kind of spray overflow tray structure is provided, make it not be only applicable to decompression distillation and degree of depth flash distillation, can improve the mass-transfer efficiency of sieve aperture tower tray in general distillation process simultaneously again.
For realizing above-mentioned purpose, the technical solution of the utility model is as follows:
It has a plurality of upper and lower intervals and is arranged in sieve aperture tower tray in the tower, on every layer of sieve aperture tower tray, be provided with an exit weir at least, space between every layer of sieve aperture tower tray and its following adjacent trays is the liquid phase spray space of this layer tower tray, every layer of sieve aperture tower tray exit weir place forms the liquid phase overfall of this layer tower tray, the overfall of the liquid phase overfall adjacent layer tower tray upper and lower with it of each layer sieve aperture tower tray is laterally staggered along diameter line of tower tray, to form S shape gas phase rising passway.
The further improved technical scheme of the utility model is as follows:
When forming the liquid phase overfall of this layer tower tray between described exit weir and the tower wall, the plan view shape of this exit weir crest of weir is one and is added from this chord length middle part the shape that constitutes to arc section of tower wall projection or trapezoidal sections by tower wall chord length.
Described exit weir is provided with spaced apart V-arrangement overflow launder or rectangle overflow launder.
By technique scheme as can be seen, the utility model has removed downspout necessary in the common tray structure, tower tray directly collect upper strata tower tray spray and under liquid, make gas phase enter spray space between tower tray by the pressure that reduces gas phase from every layer overfall, cross the liquid phase contact mass transfer that sprays under being with spray then, gas phase rises to the liquid phase counter current contacting mass transfer that upper strata overfall and upper strata tower tray overflow afterwards, enter at last the spray space of upper strata tower tray again, carry out again the mass transport process of one deck.Every layer of tower tray contacts through twice gas-liquid, increased gas-liquid contact time, particularly gas phase is crossed the process of spray band, make gas, liquid long time of contact, so the mass-transfer efficiency height, like this, it has just kept simple in structure, the low advantage of cost of sieve aperture tower tray, overcome the low shortcoming of existing sieve aperture tower tray mass-transfer efficiency, made the structural advantage of sieve aperture tower tray more obvious.Moreover this tray structure has changed the mass transfer principle of common tray structure, and it can be operated under the very little situation of air pressure, is particularly suitable for decompression distillation and degree of depth flash process.When it is used for vacuum distillation process, can make pressure drop be reduced to suitable degree, reduced unnecessary power consumption; When it is used for degree of depth flash process, under the less situation of air pressure, still guarantee more gas-liquid touch opportunity, the mass-transfer efficiency height, thus solved the low problem of degree of depth flash process mass-transfer efficiency.
Description of drawings
Fig. 1, structure of the present utility model and working state schematic representation.
The plan structure schematic diagram of Fig. 2, sieve aperture tower tray.
The A of Fig. 3, Fig. 1 is to one of structural representation.
The A of Fig. 4, Fig. 1 is to two of structural representation.
Two of Fig. 5, structural representation of the present utility model.
The structural representation of Fig. 6, existing sieve aperture tower tray.
The specific embodiment
Referring to Fig. 1,2, the tray structure with a single liquid stream is that example describes its structure and operation principle in detail earlier.This tray structure comprises that a plurality of upper and lower intervals are arranged in the sieve aperture tower tray 2 in the tower 1, one side and the Ta Bi of sieve aperture tower tray 2 are close to, opposite side is provided with an exit weir 3, between exit weir 3 and tower wall, form the liquid phase overfall 5 of this layer tower tray, constitute liquid phase spray space 4 in space between the adjacent trays down at each sieve aperture tower tray and its, the overfall of the liquid phase overfall adjacent layer tower tray upper and lower with it of every layer of tower tray is laterally staggered along diameter line of tower tray, thereby forms S shape gas phase rising passway.Its operation principle is: gas phase 6 rises from this layer overfall, liquid 7 counter current contacting mass transfers with this layer overflow decline, and then the liquid phase of crossing between dish sprays space 4, with upper strata sieve aperture tower tray spray and under liquid phase 8 contact, redirect to the liquid phase overfall of upper strata tower tray afterwards again, the liquid countercurrent contact mass transfer that overflows with the upper strata, enter the liquid phase spray space of upper strata tower tray again, carry out again the mass transport process of one deck, and so forth, carry out mass transfer in layer.
Again referring to Fig. 2, in order to improve the mass-transfer efficiency of this routine sieve aperture tower tray, exit weir crest of weir shape preferably cooperates as adaptability with the evagination radian of tower wall, and promptly the plan view shape of this exit weir crest of weir is one and is added from this chord length middle part the shape that constitutes to the arc section of tower wall projection or trapezoidal sections by tower wall chord length.
Referring to Fig. 3,4, preferably be provided with spaced apart V-shaped groove 31 or rectangle overflow launder 32 on the described exit weir, make the liquid on the dish overflow and become multiply from overflow launder, be convenient to fully contact with the gas that rises, improve mass-transfer efficiency.
Size according to tower 1 diameter, this tray structure also can be made the tray structure of many liquid streams, referring to Fig. 5, shown in the figure is one four liquid stream tray structure, each layer tower tray comprises two or three sieve aperture tower trays 2, sieve aperture tower tray 2 is provided with one or two exit weirs 3, and the overfall of each layer exit weir place liquid phase overfall 5 adjacent layer tower trays upper and lower with it is laterally staggered along diameter line of tower tray, and the arrow among the figure is represented the path that gas phase 6 rises.
Claims (3)
1, a kind of spray overflow tray structure, it is characterized in that: it have a plurality of on, the following sieve aperture tower tray (2) that is arranged at interval in the tower (1), on every layer of sieve aperture tower tray, be provided with an exit weir (3) at least, space between every layer of sieve aperture tower tray and its following adjacent trays is the liquid phase spray space (4) of this layer tower tray, every layer of sieve aperture tower tray exit weir (3) locates to form the liquid phase overfall (5) of this layer tower tray, on the liquid phase overfall of each layer sieve aperture tower tray and its, the overfall of following adjacent layer tower tray is laterally staggered along diameter line of tower tray, to form S shape gas phase rising passway.
2, spray overflow tray structure according to claim 1, it is characterized in that: when forming the liquid phase overfall of this layer tower tray between described exit weir (3) and the tower wall, the plan view shape of this exit weir (3) crest of weir is one and is added from this chord length middle part the shape that constitutes to arc section of tower wall projection or trapezoidal sections by tower wall chord length.
3, spray overflow tray structure according to claim 1 and 2 is characterized in that: described exit weir (3) is provided with spaced apart V-arrangement overflow launder (31) or rectangle overflow launder (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200289628U CN201182915Y (en) | 2008-04-29 | 2008-04-29 | Spraying overflow tower disk structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200289628U CN201182915Y (en) | 2008-04-29 | 2008-04-29 | Spraying overflow tower disk structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201182915Y true CN201182915Y (en) | 2009-01-21 |
Family
ID=40270651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200289628U Expired - Fee Related CN201182915Y (en) | 2008-04-29 | 2008-04-29 | Spraying overflow tower disk structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201182915Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071357A (en) * | 2013-02-06 | 2013-05-01 | 西安思瑞迪精馏工程有限公司 | Combined gas-liquid separator |
| CN108249493A (en) * | 2016-12-28 | 2018-07-06 | 宝钢工程技术集团有限公司 | Energy-saving decompression ammonia steaming device and its application method |
| CN108636337A (en) * | 2018-04-27 | 2018-10-12 | 海盐新世纪石化设备有限公司 | Rotation arrangement tower tray |
| CN115228103A (en) * | 2022-07-06 | 2022-10-25 | 彩源科技股份有限公司 | Ammonia water treatment device |
-
2008
- 2008-04-29 CN CNU2008200289628U patent/CN201182915Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071357A (en) * | 2013-02-06 | 2013-05-01 | 西安思瑞迪精馏工程有限公司 | Combined gas-liquid separator |
| CN108249493A (en) * | 2016-12-28 | 2018-07-06 | 宝钢工程技术集团有限公司 | Energy-saving decompression ammonia steaming device and its application method |
| CN108636337A (en) * | 2018-04-27 | 2018-10-12 | 海盐新世纪石化设备有限公司 | Rotation arrangement tower tray |
| CN115228103A (en) * | 2022-07-06 | 2022-10-25 | 彩源科技股份有限公司 | Ammonia water treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Three-Dimensional Distillation Engineering Co., Ltd. Assignor: Chu Yaan Contract record no.: 2012610000050 Denomination of utility model: Spraying overflow tower disk structure Granted publication date: 20090121 License type: Exclusive License Record date: 20120427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |