CN203281316U - Complete countercurrent mass transfer unit and tower with same - Google Patents
Complete countercurrent mass transfer unit and tower with same Download PDFInfo
- Publication number
- CN203281316U CN203281316U CN2013202599831U CN201320259983U CN203281316U CN 203281316 U CN203281316 U CN 203281316U CN 2013202599831 U CN2013202599831 U CN 2013202599831U CN 201320259983 U CN201320259983 U CN 201320259983U CN 203281316 U CN203281316 U CN 203281316U
- Authority
- CN
- China
- Prior art keywords
- mass transfer
- plate
- transfer unit
- gas
- liquid
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a complete countercurrent mass transfer unit and a tower plate with the unit, wherein the mass transfer unit is provided with a cover shaped structure with a spray aperture passage, the bottom of the cover shaped structure is characterized in that the top of the mass transfer unit is sealed by a gas-liquid separation and liquid distribution plate (6), a mass transfer liquid distribution device (11) is further mounted inside the mass transfer unit, the lower end of the mass transfer liquid distribution device penetrates through the tower plate, the upper end of the mass transfer liquid distribution device extends into the mass transfer unit, an upper spray hole (10) is formed in the upper end of the mass transfer liquid distribution device, and a lower spray hole (12) is formed in the lower end of the mass transfer liquid distribution device.
Description
Technical field
The utility model relates to a kind of gas-liquid mass transfer (contact) equipment of field of chemical engineering, is a kind of gas-liquid tower of mass transfer, heat transfer under counter-current flow, high velocity jet state in equipment specifically.
Background technology
Tower is gas-liquid mass transfer (contact) equipment important in Chemical Manufacture, and its internal structure mainly is comprised of bracing ring, downspout and column plate.Bracing ring plays the effect of supporting column plate, and downspout is the passage of liquid flow, and column plate is the original paper of gas-liquid contact, and gas-liquid two-phase is cross-flow passes on column plate.The tower section that general downspout will occupy 10% left and right amasss, remove again the area that seal pot, limit, angle etc. can not perforates, reality can arrange on column plate that the area of gas-liquid mass transfer original paper (as bubble-cap, float valve, sieve aperture etc.) only has 70% left and right, this has affected mass transfer area and the mass-transfer efficiency of gas-liquid greatly, be unfavorable for the intensive and miniaturization of equipment, reduced the production capacity of unit are (or volume) equipment.In China and even world wide, chemical industry manufacture order covering device production capacity is all improving constantly (single cover oil refining apparatus has reached 1,500 ten thousand ton/years), but the tower as the chemical industry nucleus equipment but constantly repeats to amplify on the basis of original technology, to such an extent as to some tower diameter is over 10 meters.Large like this tower diameter, for the gas-liquid two-phase of cross-flow passes on column plate, certainly will cause the bias current of gas-liquid two-phase to flow, and causes the decrease of plate efficiency.So invent a kind of intensive, gas-liquid mass transfer tower full counter-current flow, the problems such as safe, the design that will solve that present equipment enlarging brings and operation, compare with the bubble column of present extensive use, valve tower, sieve-plate tower etc., Chinese patent 200410093935.6 discloses a kind of column plate that adopts the jet cover mass transfer, adopt the side plate perforate, improve the mass-transfer efficiency of column plate, but needed equally the use of downspout.
Summary of the invention
The purpose of this utility model is to provide a kind of gas-liquid mass transfer tower of full adverse current, can overcome the low shortcoming of tower section utilization rate of prior art, realized the full counter-current flow in tower of gas-liquid two-phase, have simultaneously the advantages such as disposal ability is large, efficiency is high, operating flexibility is large, plate pressure drop is low, can meet well the technological requirement of gas-liquid mass transfer tower.This utility model has realized the interior full counter-current flow of the tower of gas-liquid two-phase, has avoided the back-mixing imagination; This tower, without overflow mechanisms such as downspouts, has been saved the column plate sectional area, has improved the column plate area utilization, has improved mass-transfer efficiency; Under the mass transfer unit effect, realize the space mass transfer in upper and lower two spaces of column plate as this tower, improved the space availability ratio of tower, realized the Intensive Design of tower.The space mass transfer of this tower has increased greatly the mass transfer surfaces of gas-liquid two-phase and has amassed, and has improved mass-transfer efficiency.This tower disposal ability is large, can operate under higher gas-liquid load, and production capacity can reach 4 times of valve plate;
The utility model provides a kind of full adverse current gas-liquid mass transfer unit, for having the hood-like structure of spraying duct, it is characterized in that the gas-liquid separation liquid distribution plate sealing of mass transfer unit top, inside also is equipped with the mass transfer liquid distributor, the lower end of mass transfer liquid distributor penetrates column plate, mass transfer unit inside is stretched in upper end, and the upper end of mass transfer liquid distributor has spray-hole, and lower end has lower spray-hole.
Described gas-liquid separation liquid distribution plate is in the projecting edge on column plate can cover all the injection projection of duct on column plate.
Described hood-like structure preferably has side plate and end plate, and described injection duct is the side plate spray-hole that has on side plate
Described side plate upper end is equipped with the support end plate, and described gas-liquid separation liquid distribution plate is preferably mounted on the support end plate, described gas-liquid separation liquid distribution plate edge and support end plate side, and the end plate upper limb surrounds injection channel.
Described mass transfer unit is projected as rectangle on column plate, described side plate, end plate, support end plate are trapezoidal or rectangle.
Described side plate spray-hole is rectangle, trapezoidal, rhombus, parallelogram or circular and other is various irregularly shaped.
Described air rising hole is rectangle, trapezoidal, rhombus, parallelogram or circular and other is various irregularly shaped.
Described gas-liquid separation liquid distribution plate has downward flanging along the two ends perpendicular to the side plate direction, and the interior angle angle of described flanging is 0-180 °, is preferably 90-180 °.
Described band sprays the hood-like structure in duct and is not limited only to above-described several
The utility model also provides a kind of full adverse current gas-liquid mass transfer tower, has air rising hole on its column plate, and is equipped with on the air rising hole position as front arbitrary described mass transfer unit, leaves end gap between the bottom of mass transfer unit and column plate.Described gas-liquid mass transfer tower comprises tower body, bracing ring, column plate and mass transfer unit; Column plate is divided into a plurality of mass transfer units district, and each mass transfer unit district has the column plate air rising hole, is mass transfer unit above air rising hole; Mass transfer unit relies on the mass transfer liquid distributor to be connected to column plate, and column plate relies on securing member to be connected on bracing ring, and bracing ring is welded on tower body.
the gas-liquid mass transfer unit that the utility model provides and the column plate of this unit has been installed, compare with the column plate of employing jet cover of the prior art, cancelled downspout, increased effective mass transfer area, simultaneously, show by the contrast experiment, in the situation that the actual plate area is identical, adopt the embodiment 1 of technical solutions of the utility model, its mass transfer effect also is better than the Comparative Examples 2 that adopts existing jet cover column plate, be much better than the Comparative Examples 1 that adopts common valve plate the technical scheme that the utility model provides is described, by with the mass transfer liquid distributor, replacing traditional equipment such as downspout, not only improved the column plate utilization rate, also produced unexpectedly the effect that improves mass-transfer efficiency.The comparative example shows by mass transfer effect, the column plate that the mass transfer unit that adopts the utility model to provide is made is in the situation that the liquid phase load is identical, in its normal operating condition (from leakage 10% to entrainment 10%), the gas phase load range that adapts to is wider, and the gas phase that can adapt to load larger (gas phase stressor and the plate hole factor during entrainment 10% are larger), illustrate that its mass transfer effect is better, treatment effeciency is higher
Description of drawings
Fig. 1 is the cross section plan structure schematic diagram of the full adverse current gas-liquid mass transfer of the utility model tower embodiment 1.
Fig. 2 is the cross section sectional structure schematic diagram of the full adverse current gas-liquid mass transfer of the utility model tower embodiment 1.
Fig. 3 is the sectional structure schematic diagram of the full countercurrent mass transfer of the utility model unit embodiment 1.
The specific embodiment
Further describe the utility model below in conjunction with embodiment and accompanying drawing thereof.
As shown in drawings, 1 tower body, 2 bracing rings, 3 column plates, 4 mass transfer unit districts, 5 mass transfer units, 6 gas-liquid separation liquid distribution plates, 7 support end plate, 8 side plate spray-holes, 9 side plates, spray-hole on 10 mass transfer liquid distributors, 11 mass transfer liquid distributors, spray-hole under 12 mass transfer liquid distributors, 13 injection channels, 14 end gaps, 15 securing members, 16 column plate air rising holes.
liquid is fallen in mass transfer unit district 4 after spray-hole ejection under the mass transfer liquid distributor of last layer column plate, in the effect of gas-liquid separation liquid distribution plate 6, drop to the surface of column plate 3 and form certain liquid layer thickness, gas enters in mass transfer unit 5 from the column plate air rising hole 16 on column plate 3, liquid on column plate 3 also is entrained in mass transfer unit 5 and carries out mass transport process by gas by ins and outs 14 simultaneously, then from the side plate spray-hole, spray-hole and injection channel 13 ejections on the mass transfer liquid distributor, under the centrifugation of gas-liquid separation liquid distribution plate 6, gas-liquid in mass transfer unit 5 realizes separating, gas is walked around the gas-liquid separation liquid distribution plate to the last layer column plate, and a liquid part falls back on column plate the air inlet liquid contact mass transfer process that continues, another part enters in the mass transfer liquid distributor, from entering next layer column plate after the spray-hole ejection under the mass transfer liquid distributor.
Experimental technique is to adopt air, water system to carry out cold mould experiment under normal pressure,
Embodiment 1-1
In φ 650 experiment towers, the full countercurrent mass transfer column plate that adopts the utility model to provide is tested.The tower plate structure parameter is as follows:
Without downspout, if 4 mass transfer unit districts, the unit of each mass transfer unit district inner transmission matter, mass transfer unit is of a size of 158mm * 158mm, distance between plates 450mm, height of weir 50mm, column plate cross section plan structure schematic diagram is as shown in Figure 1, as shown in Figure 2, the sectional structure schematic diagram of mass transfer unit as shown in Figure 3 for column plate cross section sectional structure schematic diagram.
Embodiment 1-2
Compare with embodiment 1, end plate extends to the gas-liquid separation liquid distribution plate, injection channel is sealed, the corresponding side plate spray-hole percent opening that strengthens, make side plate spray-hole sectional area account for the ratio of mass transfer unit exterior surface area identical with the ratio that embodiment 1-1 latus inframedium spray-hole and injection channel sectional area summation account for the mass transfer unit exterior surface area.Other structures are identical with embodiment 1-1.
Comparative Examples 1
In φ 650 experiment towers, common board-like valve plate, structural parameters are as follows:
Down-flow plate area/tower section amasss=14.2%, and column plate is 25
39 float valves, distance between plates 450mm, height of weir 50mm, downspout height of base slot of the downcomer 50mm.
Comparative Examples 2
In φ 650 experiment towers,
The layout of mass transfer unit is identical with embodiment 1, but cancels the mass transfer liquid distributor, adopts leg to keep end gap, adopts downspout, down-flow plate area/tower section long-pending=14.2%.
The mass transfer effect comparative example
The square root of gas speed * density of gas phase in gas phase stressor=tower
The square root of the plate hole factor=plate hole gas speed * density of gas phase
Regulate the gas-liquid flow, the maintenance fluid flow is 10m
3/ h, measure gas phase stressor and the plate pressure drop of different column plates when entrainment 10%, and following table is the mass transfer effect data of entrainment 10% data:
| The column plate pattern | Gas phase stressor Pa 0.5 | Plate hole factor Pa 0.5 | Plate pressure drop, Pa |
| Embodiment 1-1 | 4.0 | 45.1 | 900 |
| Embodiment 1-2 | 3.7 | 40.6 | 1100 |
| Comparative Examples 1 | 1.7 | 19.2 | 1800 |
| Comparative Examples 2 | 3.0 | 34 | 1800 |
Regulate the gas-liquid flow, the maintenance fluid flow is 10m
3/ h, measure gas phase stressor, the plate hole factor and the plate pressure drop of different column plates when leakage 10%, and following table is the mass transfer effect data of leakage 10%
| The column plate pattern | Gas phase stressor Pa 0.5 | Plate hole factor Pa 0.5 | Plate pressure drop Pa |
| Embodiment 1-1 | 0.364 | 4.1 | 360 |
| Embodiment 1-2 | 0.361 | 4.1 | 360 |
| Comparative Examples 1 | 0.362 | 4.0 | 380 |
| Comparative Examples 2 | 0.452 | 5.1 | 360 |
Claims (9)
1. full countercurrent mass transfer unit, for having the hood-like structure of spraying duct, it is characterized in that gas-liquid separation liquid distribution plate (6) sealing of mass transfer unit top, inside also is equipped with mass transfer liquid distributor (11), the lower end of mass transfer liquid distributor penetrates column plate, mass transfer unit inside is stretched in upper end, and the upper end of mass transfer liquid distributor has spray-hole (10), and lower end has lower spray-hole (12).
2. mass transfer unit as claimed in claim 1, the described gas-liquid separation liquid distribution plate of its feature can spray all in duct projections on column plate cover at the projecting edge on column plate.
3. mass transfer unit as claimed in claim 1 or 2, is characterized in that described hood-like structure has side plate (9) and end plate, and described injection duct is the side plate spray-hole (8) that has on side plate.
4. mass transfer unit as claimed in claim 3, it is characterized in that described side plate upper end is equipped with support end plate (7), described gas-liquid separation liquid distribution plate is arranged on and supports on end plate, described gas-liquid separation liquid distribution plate edge and support end plate side, and the end plate upper limb surrounds injection channel (13).
5. mass transfer unit as claimed in claim 4, is characterized in that described mass transfer unit is projected as rectangle on column plate; Described side plate, support end plate are trapezoidal or rectangle.
6. mass transfer unit as claimed in claim 4, is characterized in that described side plate spray-hole is rectangle, trapezoidal, rhombus, parallelogram or circle.
7. mass transfer unit as claimed in claim 2, is characterized in that described gas-liquid separation liquid distribution plate has downward flanging along the two ends perpendicular to the side plate direction, and the interior angle angle of described flanging is 0-180 °.
8. mass transfer unit as claimed in claim 7, the interior angle angle that it is characterized in that described flanging is 90-180 °.
9. tower with full countercurrent mass transfer unit, have air rising hole on its column plate, and on air rising hole (3) position, mass transfer unit is installed, leave end gap (14) between the bottom of mass transfer unit and column plate, it is characterized in that described mass transfer unit is the described full countercurrent mass transfer of claim 1-8 any one unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202599831U CN203281316U (en) | 2013-05-14 | 2013-05-14 | Complete countercurrent mass transfer unit and tower with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202599831U CN203281316U (en) | 2013-05-14 | 2013-05-14 | Complete countercurrent mass transfer unit and tower with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203281316U true CN203281316U (en) | 2013-11-13 |
Family
ID=49537697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202599831U Withdrawn - After Issue CN203281316U (en) | 2013-05-14 | 2013-05-14 | Complete countercurrent mass transfer unit and tower with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203281316U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252205A (en) * | 2013-05-14 | 2013-08-21 | 河北工业大学 | Full-countercurrent mass transfer unit and tower plate with unit |
| CN109985576A (en) * | 2017-12-29 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of gas-liquid mass transfer system |
-
2013
- 2013-05-14 CN CN2013202599831U patent/CN203281316U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252205A (en) * | 2013-05-14 | 2013-08-21 | 河北工业大学 | Full-countercurrent mass transfer unit and tower plate with unit |
| CN109985576A (en) * | 2017-12-29 | 2019-07-09 | 中国石油化工股份有限公司 | A kind of gas-liquid mass transfer system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016082667A1 (en) | Gradient step cap hood tower plate | |
| CN104587693A (en) | KDF floating valve tray | |
| CN102961888A (en) | Flow-separation back-mixing-free spraying tower disc | |
| CN203281316U (en) | Complete countercurrent mass transfer unit and tower with same | |
| CN204121795U (en) | A kind of novel packed tower suppressing gas fractionation unit to block liquid | |
| CN103252205B (en) | Full-countercurrent mass transfer unit and tower plate with unit | |
| CN101874933B (en) | Duplex overflow weir capable of promoting vapor-liquid separation | |
| CN104524801B (en) | A kind of dispersion descending liquid sieve-plate tower | |
| CN111939726A (en) | Filler absorption tower and application method thereof | |
| CN209771759U (en) | Semi-arc jet overflow type tower plate | |
| CN2915212Y (en) | A radial side pilot jet tray | |
| WO2016082664A1 (en) | Curved cap hood tower plate | |
| US20180147504A1 (en) | Method and system for orifice control of valve pressure drop | |
| CN201791392U (en) | Stereoscopic mass transfer liquid identical-direction flow tower | |
| CN202844619U (en) | High-flux anti-blocking gas-liquid cross flow spraying tower plate | |
| CN201304261Y (en) | Porous three-dimensional gas-liquid contact element | |
| CN203648122U (en) | Gas-liquid mass transfer improved structure of tower plate of float valve tower | |
| CN2928190Y (en) | Long strip type float valve tower disc | |
| CN113289569A (en) | Three-dimensional dynamic column plate | |
| CN210097687U (en) | Flow guide structure tower plate and plate tower thereof | |
| CN102489031B (en) | Rotary float valve tower | |
| CN101327379A (en) | Duct downstream spray tray | |
| CN202921011U (en) | Distribution device for secondary distribution of gas phase and rectifying tower | |
| CN205627446U (en) | Concentric circles formula scrubbing tower | |
| CN109876761B (en) | Reinforced tray type plate tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20141029 |
|
| RGAV | Abandon patent right to avoid regrant |