CN2126546Y - Ladder-shaped horizontal bubble plates - Google Patents
Ladder-shaped horizontal bubble plates Download PDFInfo
- Publication number
- CN2126546Y CN2126546Y CN 92208360 CN92208360U CN2126546Y CN 2126546 Y CN2126546 Y CN 2126546Y CN 92208360 CN92208360 CN 92208360 CN 92208360 U CN92208360 U CN 92208360U CN 2126546 Y CN2126546 Y CN 2126546Y
- Authority
- CN
- China
- Prior art keywords
- valve
- trapezoidal
- column plate
- leg
- valve block
- 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 - Lifetime
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- Float Valves (AREA)
Abstract
The utility model discloses a ladder-shaped float valve column tray used for gas liquid mass transfer equipment. A ladder-shaped valve hole is arranged on a column tray, a ladder-shaped float valve plate is arranged, the two legs of the float valve plate are inserted into the ladder-shaped valve hole of the column tray, and narrow slit notches are arranged on the large and the small valve legs whose ends are respectively provided with two valve feet to make the float valve plate tie on the column tray. A float valve is opened and closed following the fluctuation of the gas passed through the bore of the column tray. The utility model has the advantages of large operation flexibility, little leakage, low pressure drop and high efficiency.
Description
Usually the gas-liquid, the liquid liquid mass transfer apparatus that adopt in oil, chemical industry, the light industry production are various tower equipment, as bubble column, packed tower, valve tower etc.Valve tower is a kind of gas-liquid mass transfer (contact) equipment of function admirable, and the float valve pattern of available technology adopting has multiple, as F
1Type, V-4 type, cross type etc., these float valves in working order in, gas under the type valve block of garden in horizontal direction to around the ejection, the gas of adjacent two valves ejection easily liquidates, easily produce entrainment during high cycle speed, liquid phase material on the column plate is subjected to the injection that liquidates of all directions gas, and air-teturning mixed phenomenon takes place easily.
V-type screen column plate has been invented by U.S. Natta company, this column plate be on column plate once punching press make the fixing column plate that rises the trapezoidal strip valve member of height, it makes gas blow out with horizontal direction, and in a certain angle with the flow direction on the column plate, and reasonable guide functions is arranged, thereby reduced gradient of liquid level, eliminate the liquid stagnant area at wall place, column plate top, improved the gas-liquid distribution, reduced pressure drop, reduce entrainment, can improve production capacity and mass-transfer efficiency.But because it is the valve of fixing, when gas load was low, column plate leaked bigger, influenced the operating flexibility of tower.
The another kind of stripe shape valve plate that extensively adopts, its valve body is rectangle, and liquid is 90 ° of dislocation and contacts on gas and the plate, and mass transfer effect is preferably arranged.On the arrangement mode of valve, adopted dislocation to arrange modes such as T shape arrangement.But the characteristics of this valve body structure make it not promote the component of liquid flow, cause in column plate bow type district to have liquid stream dead band, cause to mix and return phenomenon, and liquid layer is thicker, and pressure drop is increased, and mass-transfer efficiency is affected.
In order to overcome the some shortcomings of prior art, the pressure drop of column plate is reduced, the operating flexibility of tower strengthens, and air-teturning mixed phenomenon does not take place, and reduces entrainment etc., and valve is simple in structure, easily manufactured simultaneously, and cost reduces.Trapezoidal float valve tray of the present invention tries hard to that exactly tangible progress is arranged in these areas.
Of the present invention being specifically described as follows, trapezoidal float valve tray are to be made of column plate (3) and float valve sheet (8).Column plate places in garden shape or the square tower body (1), and both sides are provided with downspout (25), and downflow weir (26) is arranged between column plate and the downspout, uniform trapezoidal valve opening (5) on the column plate, and column plate edge opens little valve opening (27) (seeing accompanying drawing 2).
What match with column plate upper trapezoid hole (5) is float valve sheet (8), and it is a trapezoidal valve block, and when closing, valve block (8) can cover valve opening (5).Two waists (13) of valve block (8) are greater than two waists (12) of valve opening on the column plate (5), curve a β angle under two waists (13) of valve block (8), 0＜β＜90 °, 10 °＜β＜60 ° more preferably, change gas flow pattern when operating to reach, form vortex flow, gas-liquid contact closely reaches the reinforcement mass transfer.Trapezoidal valve block (8) dashes downwards by narrow end place two boss (11), when valve block drops to extreme lower position, the wide end of valve block place drops on the wide edge in column plate hole (5), contacts with the column plate peritreme near two boss (11) at narrow end place, is crushed to death or becomes rusty extremely to prevent valve block.
The upper base (9) of valve block (8) and go to the bottom (10) have little valve leg (14) and big valve leg (15) respectively, and two valve legs are inserted in the valve opening (5) (sees accompanying drawing 5).Little valve leg (14) has narrow slit breach (22) in position on the lower side, and the position on the lower side of big valve leg (15) has narrow slit breach (23), and the width of narrow slit breach is less than column plate thickness, and is flexible to guarantee the valve block switch.There are two valves foots (20) end of little valve leg, and there are two valves foots (21) end of big valve leg, and the valve foot becomes a α angle with the valve leg, 0＜α＜90 °, and more preferably 10 °＜α＜60 ° tie up on the column plate valve block (8).The rise height of valve block (8) is decided by the height and the valve foot of valve leg.Valve block (8) is when dropping to extreme lower position, and the wide end of valve block drops on the wide edge in column plate hole, and narrow end contact by narrow edge place by boss (11) and hole, kills or becomes rusty extremely to prevent valve block and column plate.
Trapezoidal float valve tray of the present invention, adopt trapezoidal valve structure, making air-flow and liquid flow path direction be an acute angle blows out, impact liquid phase material on the column plate, form and promote the component that liquid advances, flow rate of liquid is increased, strengthened the gas-liquid contact, reduce gradient of liquid level and entrainment, eliminate the Bian Bi dead band, it has bubble-cap, valve plate good springiness concurrently, leakage is little, efficient is high, easy to operate, advantage such as pressure drop is low, back-mixing is few.
Accompanying drawing and Brief Description Of Drawings,
Fig. 1 is the schematic perspective view of trapezoidal float valve when operation
Fig. 2 is that column plate is arranged schematic diagram at garden shape tower body midplane
Fig. 3 is a column plate upper trapezoid valve opening
Fig. 4 is the expanded view of float valve sheet
Fig. 5 is a float valve longitudinal sectional view in off position
Fig. 6 is that the A of float valve is to view
Embodiment
In square tower body, place 0.4 * 1 meter
2The rectangle column plate, all open trapezoidal valve opening on the column plate.Three blocks of column plates are installed in test altogether, below a plate be used for leak tested, above a column plate be that the fixing column plate that rises height is arranged, be used to collect entrainment.The experiment system is a water and air, adopts rectangular valve to compare test, has measured anode drop, has leaked, carries secretly the situation with oxygen desorb mass-transfer efficiency.
Result of the test sees Table
Table 1 pressure drop ratio
Hole kinetic energy factor m/s(kg/m)
1/220 25
Liquid flowing strength m
3/ m.hr 40 80 40 80
△ Pa bar shaped valve 900 1,040 1,050 1150
The trapezoidal valve 870 965 1,005 1050 of △ Pa
Decline % 3.3 7.2 4.3 8.7
Can find out that from table 1 result behind the valve standard-sized sheet, trapezoidal valve can reduce by 3.3～8.7% than the pressure drop of bar valve.
Table 2 leaks relatively
Liquid flowing strength m
3/ m.hr 20 60
Hole kinetic energy factor m/s 8 16 8 16
Ladder valve slip % 6.25 1.75 3.3 1.0
Bar valve slip % 10.5 2.7 5.1 1.25
Reduce % 35.7 35.2 35.3 20
Can find out that from table 2 result the leakage of trapezoidal valve is more much smaller than bar shaped valve.
The comparison of table 3 entrainment
Liquid flowing strength m
3/ m.hr 40 80
Tower stressor (m/s) 2.4 2.4
The ladder valve is carried (kg liquid/100kg gas) 2.85 4.4 secretly
The bar valve is carried (kg liquid/100kg gas) 3.5 11.1 secretly
Reduce % 18.6 60.3
Can find out that from table 3 result trapezoidal valve entrainment significantly descends.
Table 4 mass-transfer efficiency relatively
Liquid flowing strength (m
3/ m.hr) 20
Trapezoidal valve efficient % 96.5
Stripe shape valve efficient % 95
Oxygen desorption efficiency rising % 1.5
Liquid flowing strength is 20(m as seen from Table 4
3/ m.hr) time, trapezoidal valve oxygen desorption efficiency is high by 1.5% than the stripe shape valve.
Claims (5)
1, a kind of trapezoidal float valve tray, have trapezoidal valve opening (5) on its column plate (3), the float valve of Pei Heing is one and is shaped as trapezoidal valve block (8) therewith, two boss (11) are gone out at the narrow end place of leaning on that it is characterized in that valve block downwards, the down curved angle of two waists of valve block, the upper and lower end of valve block, have two big or small valve legs (14) and (15) respectively, have narrow slit breach (22) and (23) on the size valve leg, the foot of valve leg respectively has two valve foots (20) and (21), and valve foot and valve leg are in an angle.
2, trapezoidal float valve tray according to claim 1 is characterized in that column plate (3) places square or garden shape tower body (1), has evenly distributed trapezoidal valve opening (5) on the column plate, and the edge of column plate has little valve opening (27).
3, trapezoidal float valve tray according to claim 1, it is characterized in that trapezoidal valve block (8) leans on narrow end place to go out two boss (11) downwards, when valve block drops to extreme lower position, the wide end of valve block place drops on the wide edge in column plate hole (5), near contacting of two boss (11) of narrow end and hole, kill or become rusty extremely to prevent valve block and column plate by narrow edge place.
4, trapezoidal float valve tray according to claim 1, it is characterized in that two waists (12) of two waists (13) of trapezoidal valve block (8) greater than column plate valve opening (5), curve a β angle under valve block two waists (13), 0＜β＜90 ° are preferably 10 °＜β＜60 °.
5, trapezoidal float valve tray according to claim 1, it is characterized in that big or small valve leg (14) and (15) just in time insert the upper and lower bottom of valve opening (5), respectively have two narrow slit breach (22) and (23) on the size valve leg, the width of its breach is less than the thickness of column plate; Respectively there are two valves foots (20) and (21) end of size valve leg, and valve becomes a α angle enough with the valve leg, 0＜α＜90 °, more preferably 10 °＜α＜60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92208360 CN2126546Y (en) | 1992-05-04 | 1992-05-04 | Ladder-shaped horizontal bubble plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92208360 CN2126546Y (en) | 1992-05-04 | 1992-05-04 | Ladder-shaped horizontal bubble plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2126546Y true CN2126546Y (en) | 1993-01-13 |
Family
ID=33762428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92208360 Expired - Lifetime CN2126546Y (en) | 1992-05-04 | 1992-05-04 | Ladder-shaped horizontal bubble plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2126546Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046425C (en) * | 1997-11-24 | 1999-11-17 | 石油大学(北京) | Float valve tray with wings |
| CN1048645C (en) * | 1997-04-03 | 2000-01-26 | 中国石油化工总公司 | Rectangular suspended downcomer guide column plate |
| CN104841154A (en) * | 2015-05-11 | 2015-08-19 | 天津大学 | Guide trapezoid fixed valve with low entrainment |
-
1992
- 1992-05-04 CN CN 92208360 patent/CN2126546Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048645C (en) * | 1997-04-03 | 2000-01-26 | 中国石油化工总公司 | Rectangular suspended downcomer guide column plate |
| CN1046425C (en) * | 1997-11-24 | 1999-11-17 | 石油大学(北京) | Float valve tray with wings |
| CN104841154A (en) * | 2015-05-11 | 2015-08-19 | 天津大学 | Guide trapezoid fixed valve with low entrainment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |