CN1762520A - Float valve fixing column plate - Google Patents

Float valve fixing column plate Download PDF

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Publication number
CN1762520A
CN1762520A CN200510094252.6A CN200510094252A CN1762520A CN 1762520 A CN1762520 A CN 1762520A CN 200510094252 A CN200510094252 A CN 200510094252A CN 1762520 A CN1762520 A CN 1762520A
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CN
China
Prior art keywords
valve
valve block
block
plate
length
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Granted
Application number
CN200510094252.6A
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Chinese (zh)
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CN100335148C (en
Inventor
周政
张志炳
梁银春
耿皎
孟为民
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Nanjing University
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Nanjing University
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Application filed by Nanjing University filed Critical Nanjing University
Priority to CNB2005100942526A priority Critical patent/CN100335148C/en
Publication of CN1762520A publication Critical patent/CN1762520A/en
Application granted granted Critical
Publication of CN100335148C publication Critical patent/CN100335148C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A fixed float valve plate, comprising orifice valve and valve block, the valve block is a quadrangle similar to diamond with macro-diagonal line as bilateral symmetry, the separation angle of the long line points to the overflow dam, the length of the valve block long line a is 10-80 mm, the width of the valve block b is 8-60 mm, the width of the valve leg c is 4-20 mm, the length of the valve block d is 15-90 mm, the height of the valve leg h is 3-8 mm, the length of the valve pore I is 15-100 mm, the valve leg connects the valve block with the valve plate. The fixed float valve plate in this invention can push the liquid to the overflow dam to decrease the liquid level drop height, and eliminate the convolution and back-mix-flow effectively, thus increase the valve plate efficiency. The side edge of broken line similar to diamond is longer than that of rectangular straight line and circular arcuate path, which makes the outlet of air passage be larger, and increase the pass amount effectively and the contacting area of the gas-liquid mass transfer, which can not only increase the transferring efficiency but the pore speed of the gas decreases under the same treating amount, thus decreasing the valve plate resistance force.

Description

A kind of fixed float valve plate
Technical field
The present invention relates to the core component of Gu Fata---fixed float valve plate.
Background technology
Gu it is big that the valve column plate has production capacity, the plate efficiency height, processing and advantage such as maintenance cost is low are subjected to the welcome of industrial quarters deeply.At present, the fixedly float valve of industrial solid valve column plate is mainly fixedly two kinds of float valves (Fig. 3,4) of circular fixedly float valve (seeing Fig. 1,2) and bar shaped.These two kinds fixedly float valve mainly contain following feature: directly on the column plate plane, go out circular and projection bar shaped, with its rim openings as gas phase channel, respectively have a valve leg to be connected with column plate before and after the valve block, work to support valve block, the angle on valve leg and column plate plane is about 100 degree.On same block of column plate, circular fixedly float valve or bar shaped fixedly float valve are all arranged towards same direction, and promptly valve leg direction is parallel with the liquid flow path direction, and the direction of gas vent is then vertical with the liquid flow path direction.For round valve, gas vent is a circular arc, thus from the gas of outlet first half ejection certain liquid effect that pushes away is arranged, but because the gas of the latter half ejection of the solid valve outlet port in the place ahead has the blocking solution effect, two kinds of agency parts are offset, and weaken each other.And for the solid valve of bar shaped, its gaseous phase outlet is a straight line, the direction of gas ejection is vertical with the liquid flow path direction, not only do not push away the liquid effect, and since the gas direction of adjacent two valve blocks ejection relatively and distance very near, cause seriously to the spray phenomenon, be easy to generate a large amount of entrainments, weaken the mass transfer function of column plate, reduce plate efficiency.
Summary of the invention
A kind of fixed float valve plate, it comprises valve hole plate and valve block, it is the quadrangle that is similar to rhombus of symmetry axis with the long-diagonal that valve block is one, article two, the angle on long limit points to downflow weir, the length a on the long limit of valve block, can in the scope of 10~80mm, choose, a=20~50mm preferably, the width b of valve block can be taken as 8~60mm, b=10~25mm preferably, the width c of valve leg can be taken as 4~20mm, preferably c=5~12mm, the length d of valve block can be taken as 15~90mm, preferably d=15~60mm; Gu the height h of valve valve leg can be taken as 3~8mm, preferably h=3~5mm; The length 1 of valve opening can be taken as 15~100mm, 1=15~70mm preferably, and the valve leg links together valve block and column plate.
Above-mentioned fixed float valve plate, described valve block below has two valve legs at least, and the shape of the shape of valve opening and valve block is same or similar on the valve hole plate, and the length of valve block is not more than the length of valve opening.
Above-mentioned fixed float valve plate, the corner of valve block quadrangle both sides is a circular arc, makes valve block be streamlined along the liquid flow path direction.
Fixed float valve plate of the present invention can be stamped to form, one-shot forming, after also valve block can being made the valve leg is welded in or riveting on valve hole plate.
Fixed float valve plate of the present invention can be made with various metal materials, in case of necessity can also with metal material and nonmetallic materials are compound makes, to satisfy the needs of different operating mode occasions.
The layout arrangement mode of the solid valve of fixed float valve plate of the present invention on column plate is: generally press equilateral triangle and arrange, also can adopt isosceles triangle to arrange, in rounded projections arranged, in-line arrangement and fork row are arranged again, remarkable when blowing out interaction that air-flow stirs liquid layer when adopting fork row in adjacent two valves than in-line arrangement, gradient of liquid level is less, and bubbling is even, so to adopt fork row for well.Valve centre-to-centre spacing s=30~100mm, row with arrange between apart from t=20~80mm, can adjust according to actual conditions in case of necessity.
Fixed float valve plate of the present invention because first half is more elongated than latter half, like this for first half, is acute angle between the air-flow of both sides ejection and the liquid flow path direction, can be to forward the impetus of having flowed of liquid; And later half part is therefore less to the reverse impetus of liquid because two limits are shorter.On column plate that these valve blocks are staggered, can not produce the phenomenon that liquidates basically, and the streamlined circular arc is processed in two corners of valve block, to reduce the resistance of fluid flow, effectively eliminate eddy current and back-mixing, improve plate efficiency.In addition, the rhomboid broken line side of class is all longer with circular camber line side than the straight line side of rectangle, make that the gas passage outlet is bigger, thereby improved flux effectively, increased the gas-liquid mass transfer contact area, this not only can improve mass-transfer efficiency, and under the same treatment amount, gas phase hole speed is descended, thereby reduces the resistance of column plate.
Description of drawings
Fig. 1 is the circular fixedly vertical view of float valve;
Fig. 2 is the circular fixedly front view of float valve;
Fig. 3 is the fixing vertical view of float valve of bar shaped;
Fig. 4 is the fixing front view of float valve of bar shaped;
Fig. 5 is the fixing vertical view of float valve of the present invention;
Fig. 6 is the fixing front view of float valve of the present invention;
Fig. 7 is the fixing arrangement mode of float valve on column plate (fork row) of the present invention;
Fig. 8 is the fixing arrangement mode (in-line arrangement) of float valve on column plate of the present invention.
The specific embodiment
Embodiment 1.
Expoxy propane (PO)-crystal heats up in a steamer system, adopts fixed float valve plate of the present invention to transform former F1 type valve plate, tower diameter Φ 1200mm, and the number of plates is 50, distance between plates is 450mm, the material stainless steel.Use fixed float valve plate of the present invention instead, as Fig. 5, shown in Figure 6, the long edge lengths a=50mm of valve block; The width b=25mm of valve block; The width c=8mm of valve leg; The total length d=70mm of valve block; Gu the height h=4mm of valve; The length of valve opening is 1=75mm.As shown in Figure 7, adopt fork row mode, between valve centre-to-centre spacing s=70mm, row and row apart from t=60mm, treating capacity is F=18000t/a=2500kg/h (by calculating in a year 300 days).Operating result shows that the treating capacity of this column plate improves 15% than F1 float valve, and the purity of separating back PO rises to 99.95%, energy consumption decline 2% from 99.93%.
Embodiment 2:
Ethanol-crystal heats up in a steamer system, is common sieve plate column plate originally.It is undesired always after equipment puts into operation, show that mainly the production load is on the low side, can only reach 90% of former design load, and operating mode and load to have fluctuation product promptly to occur slightly defective, through repeatedly observing, adjusting, think after the repeated calculation to cause plate efficiency to reduce because the gas punching rate is excessive.For improving the situation of this complete equipment, adopt fixed float valve plate of the present invention.Former rectifying column Φ 1600mm, 55 layers of column plate, percent opening 12%.Change whole column plates into fixed float valve plate of the present invention.As Fig. 5, shown in Figure 6, the long edge lengths a=40mm of the solid valve valve block of guiding; The width b=20mm of valve block; The width c=6mm of valve leg; Length d=the 60mm of valve block; Gu the height h=4mm of valve; The length of valve opening is 1=65mm.As shown in Figure 8, adopt the in-line arrangement mode, valve centre-to-centre spacing s=60mm, row with arrange between apart from t=50mm, after putting into operation, treating capacity has improved 21%, the product concentration of ethanol brings up to 94.9% from original 94.3%, has reached re-set target.

Claims (5)

1. fixed float valve plate, it comprises valve hole plate and valve block, it is characterized in that: it is the quadrangle that is similar to rhombus of symmetry with the long-diagonal that valve block is one, and the angle on long limit points to downflow weir, and the long edge lengths a of valve block is 10~80mm, the width b of valve block is 8~60mm, the width c of valve leg is 4~20mm, and the length d of valve block is 15~90mm, Gu the height h of valve valve leg is 3~8mm, the length l of valve opening is 15~100mm, and the valve leg links together valve block and column plate.
2. fixed float valve plate according to claim 1, it is characterized in that: the long edge lengths a of valve block is 20~50mm, the width b of valve block is 10~25mm, the width c of valve leg is 5~12mm, the length d of valve block is 15~60mm, Gu the height h of valve valve leg is 3~5mm, the length l of valve opening is 15~70mm.
3. fixed float valve plate according to claim 1 is characterized in that: have two valve legs under the described valve block at least, the shape of the valve opening on the valve hole plate and the shape of valve block are same or similar, and the length of valve block is not more than the length of valve opening.
4. fixed float valve plate according to claim 1 is characterized in that: the tetragonal corner of described valve block is a circular arc, makes valve block be streamlined along the liquid flow path direction.
5. fixed float valve plate according to claim 1 is characterized in that: the layout arrangement mode of the solid valve of fixed float valve plate on column plate is that equilateral triangle is arranged or isosceles triangle is arranged, and rounded projections arranged is in-line arrangement or fork row.
CNB2005100942526A 2005-09-07 2005-09-07 Float valve fixing column plate Expired - Fee Related CN100335148C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100942526A CN100335148C (en) 2005-09-07 2005-09-07 Float valve fixing column plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100942526A CN100335148C (en) 2005-09-07 2005-09-07 Float valve fixing column plate

Publications (2)

Publication Number Publication Date
CN1762520A true CN1762520A (en) 2006-04-26
CN100335148C CN100335148C (en) 2007-09-05

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CNB2005100942526A Expired - Fee Related CN100335148C (en) 2005-09-07 2005-09-07 Float valve fixing column plate

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101480539B (en) * 2009-01-05 2012-04-25 张晓宏 One-way fixed float valve plate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2250795Y (en) * 1996-02-07 1997-04-02 石油大学(华东) Semi-conical float valve tray
CN2260933Y (en) * 1996-06-20 1997-08-27 中国石化北京设计院 Float-valve tower plate
CN2331400Y (en) * 1998-02-25 1999-08-04 李航胜 Miniature float valve tray
CN1155430C (en) * 2002-03-12 2004-06-30 南京大学 Guide float valve tray

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101480539B (en) * 2009-01-05 2012-04-25 张晓宏 One-way fixed float valve plate

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Granted publication date: 20070905

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