CN1042800C - Angle double-acting float valve tray - Google Patents
Angle double-acting float valve tray Download PDFInfo
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- CN1042800C CN1042800C CN94101479A CN94101479A CN1042800C CN 1042800 C CN1042800 C CN 1042800C CN 94101479 A CN94101479 A CN 94101479A CN 94101479 A CN94101479 A CN 94101479A CN 1042800 C CN1042800 C CN 1042800C
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- valve
- angle
- float valve
- acting
- triangle
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Abstract
The present invention relates to a column tray with an angular double-acting float valve, which is formed by the method that a triangular valve hole (3) and an angular double-acting float valve matched with the triangular valve hole (3) are arranged on the column tray (2). The present invention is characterized in that the valve face (6) forms a triangle, two dummy clubs (8) are respectively and downwards punched at two web edges (13), an uvula-shaped float valve (7) is arranged on the valve face (6), the angular double-acting float valve is provided with two valve legs (9) and two valve feet (10), the flare angle theta of the uvula-shaped float valve on the valve face(6) of the angular double-acting float valve is greater than 10 degrees and less than 30 degrees, and the included angles between the triangular valve face (6) and the triangular valve hole (3) on the column tray are identical.
Description
The present invention relates to a kind of angle double-acting float valve tray, is a kind of new and effective high resiliency double-acting float valve tray that is widely used in the various fractionating columns of industry such as oil refining, chemical industry, petrochemical industry and light industry, absorption tower, desorber, scrubbing tower, the extraction tower.International Patent classificating number is: B01D 3/18.
In existing valve tower technology, the column plate that uses in the above-mentioned tower has F
1Type valve plate (V-1 type valve plate), rectangular valve column plate, ship shape valve plate, these column plates are applied on industrial tower.
F
1Type (V-1 type) valve plate is in working order the time, gas under the type valve block of garden in horizontal direction to around spray, the air-flow of adjacent two valves ejection clashes mutually, has not only aggravated entrainment, and has brought radially back-mixing of liquid phase.When low gas phase was loaded, the column plate leakage was more; During high gas phase load operation, entrainment and plate pressure drop sharply increase, thereby the operating flexibility of tower is restricted greatly, and plate efficiency also is difficult to improve simultaneously.In addition, F
1(V-1) the type float valve easily stuck, rotate and come off, influence the normal running of tower.
Nineteen fifty-one, nanotesla stripe shape valve plate (NutterValve) was invented by U.S.'s nanotesla company, its valve body and column plate valve opening are rectangle, and gas is the ejection of both sides level under the valve block, and air-flow is vertical with liquid flow direction, valve position is taked modes such as dislocation arrangement or the arrangement of T type on the column plate, and it has overcome F
1Some shortcoming of type float valve (V-1 type) column plate has mass transfer effect preferably.But this this body structure of rectangular valve makes it not have impetus to the liquid flow on the column plate, as F
1The type valve plate is the same, " stagnant area " that has a liquid in the cambered plate district of column plate, simultaneously on valve face, all exist a gas-liquid to be difficult to exchange " dead band " of mass transfer, make on the column plate that to form gradient of liquid level big, pressure falls greatly, this is more obvious in the major diameter tower, improves and operating flexibility thereby influenced plate efficiency.The ship shape valve plate of China's exploitation does not solve the problem of above-mentioned existence yet.
The objective of the invention is to overcome the deficiency of prior art, a kind of angle double-acting float valve tray is provided, this be a kind of simple in structure, plate pressure drop is low, leaking liquid amount is few, entrainment is few, plate efficiency is high, operating flexibility is big, be suitable for a kind of novel column plate that all can apply in minor diameter and major diameter tower.
The object of the present invention is achieved like this: the bilateral valve plate of dihedral of the present invention, have triangle valve opening (3) on the column plate (2), the valve of Pei Heing is angle double-acting float valve (17) therewith, it is characterized in that valve face (6) is for triangular shaped, two waist limits (13) stamp out two boss (8) respectively downwards, valve face (6) is provided with uvula shape float valve (7), and the angle double-acting float valve has two valve legs (9) and two valve pin (10).Two valve legs (9) of angle double-acting float valve just in time insert the base and the drift angle place of triangle valve opening (3) on the tower respectively, prevent that valve body is stuck, rotate and come off.The subtended angle that the valve face of angle double-acting float valve (6) is gone up uvula shape float valve is 10 °＜θ＜30 °, and the best is 15 °＜θ＜25 °; The angle of triangle valve opening (3) is identical on triangle valve face (6) and the column plate, 126 ° of 60 °＜α of drift angle, and the best is 90 °≤α≤120 °; 30 °＜the β in base angle＜60 °, the best is 30 °≤β＜45 °; Triangle valve face (6) the two waist length of sides are generally 30～50mm, and the best is 35～45mm, and its bottom side length is generally 45～80mm, and the best is 55～65mm; The triangle valve opening two waist length of sides are generally 25～45mm on the column plate, and the best is 30～40mm; The general length in its base is 40～70mm, and the best is 50～60mm.
The present invention compared with prior art has following advantage: 1. plate pressure drop is low; 2. leaking liquid amount was few when low gas phase was loaded; 3. entrainment was few when high gas phase was loaded; 4. at the gas and the acute angle of liquid flow direction formation of triangle two waist limit horizontal directions ejection less than 45 °, this has realized that not only gas-liquid fully contacts, and effectively promoted liquid flow, thereby eliminated the gradient of liquid level on the column plate, overcome the radially air-teturning mixed phenomenon of liquid and the liquid " stagnant area " on the column plate, this point is particular importance in the major diameter tower; 5. the uvula shape float valve that disposes on the valve face of angle double-acting float valve not only has the 4th advantage, and eliminated " dead band " that gas-liquid on the valve face is difficult to exchange mass transfer, simultaneously when tower goes into operation the initial operating stage low gas velocity, before whole valve body does not still rise, uvula shape float valve at first opens, the leakage of valve when having prevented low gas velocity, the response that goes into operation is fast, and mass transfer effect is good; 6. plate efficiency improves about 5～10%; Valve body can be not stuck, rotate and come off, it is convenient that maintenance is installed; 8. operating flexibility can reach 12: 1, and disposal ability is than F
1The type valve plate can improve 30～50%; 9. column plate cost and investment and F
1The type valve tower is compared and is not increased; 10. being adapted at various towers is particularly suitable for applying in the major diameter tower.
Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.
Schematic perspective view when Fig. 1 is the angle double-acting float valve tray structure that proposes according to the present invention and operation;
Fig. 2 is that angle double-acting float valve tray is arranged schematic diagram at the tower body midplane;
Fig. 3 is the triangle valve opening figure on the column plate;
Fig. 4 is the structural representation of uvula shape float valve;
Fig. 5 is that the A of angle double-acting float valve valve face and ligulate float valve is to view.
Describe in detail according to the concrete device that the utility model proposes below in conjunction with accompanying drawing 1-5 Details and working condition.
Referring to Fig. 1 and Fig. 2, angle double-acting float valve tray is by column plate (2) and angle double-acting Float valve (17) consists of. Column plate (2) places in the tower body (1), and there are downspout (5), tower in both sides Downflow weir (4) is set, uniform Heterogeneous Permutation triangle valve on the column plate between plate and the downspout Hole (3) is provided with uvula shape float valve (7) on the valve face of angle double-acting float valve (6).
Angle double-acting float valve (17) is put down by triangle valve face (6), ligulate float valve (7), boss Weighing apparatus contact point (8), valve leg (9) and valve pin (10) form. Triangle valve face (6) is isosceles Triangle, its two waists limit (13) length is 30～50mm, bottom side length is 45～80mm. The valve pin (10) and valve leg (9) when column plate is installed, be 90 ° of angles, the high h of valve leg is generally 10～20mm, the wide c of valve leg is generally 40～70mm. During uvula shape float valve (7) total relief and triangle The angle theta of shape valve face (6) is generally 10 °～30 °. Its valve face shape of uvula shape float valve (7) Shape is half garden shape as shown in Figure 4, and radius R is generally 6～10mm, and there is short valve its rear end Leg (18) and little valve pin (16), part during installation (18) and part (16) are 90 ° of angles, short valve leg (18) height is generally 4～6mm; Uvula shape float valve front end has a long valve leg (12) and little Valve pin (19), two are 90 ° of angles during installation, and long valve leg height is generally 5～12mm. Three The valve opening shape that dihedral valve face (6) is upper and uvula shape float valve is supporting is with ligulate valve face (11), Valve opening length overall L1Be generally 6～12mm.
Column plate (2) valve opening (3) upper and that angle double-acting float valve (17) is supporting is isosceles triangle, sees accompanying drawing 3, the long b of its two waist1Be generally 25～48mm, base a1Length is generally 40～75mm, and its apex angle α is generally 60 °～126 °, and base angle β is generally 30 °～60 °, its base a during perforate1Vertical with liquid flow direction.
The subtended angle θ of the long valve leg of uvula shape float valve front end (12) restriction ligulate float valve, the short valve leg in its rear end (18) guarantees the freely unresisted opening and closing of uvula shape float valve.Referring to Fig. 5.
Height that valve leg (9) limiting valve of angle double-acting float valve floats and limiting valve body rotation.When dihedral is got float valve and is dropped to column plate (2) and go up, make between itself and the column plate by boss balance contact point to keep certain slit, make the two can not bond or become rusty extremely.
It is stainless steel or the carbon steel thin plate stamped of 1.5～2.5mm that the angle double-acting float valve can adopt thickness, and manufacturing process is simple and easy to do.
Embodiment
In circular Φ 1.2m diameter tower body angle double-acting float valve tray is installed, 4 blocks of column plates are installed in experiment altogether, and wherein 1 is distribution of gas leakage collecting board, and middle two is angle double-acting float valve tray, and topmost one deck is the entrainment collecting board.The experiment system is a water and air, adopts F
1The type float valve compares test, has measured plate pressure drop, leakage, entrainment and carbon dioxide desorb mass-transfer efficiency data, and experimental result sees Table 1～4.
Table 1 plate pressure drop is valve opening kinetic energy factor m/s (kg/m relatively
3)
0.520 25 liquid flowing strength m
3/ mhr 30 45 30 45 Δ P
tF
1Garden float valve Pa 1,050 1,300 1,500 1800 Δ P
tAngle double-acting float valve Pa 880 1,000 1,150 1250 plate pressure drops reduce % 16.2 23.1 23.3 30.6
Find out that by table 1 behind the full hole of valve, the angle double-acting float valve tray pressure drop is than F
1The pressure drop of type valve plate can reduce by 16.2～30.6% (height of weir 50mm).
Table 2 entrainment contrast column plate effective area kinetic energy factor m/s (kg/m
3)
0.34.0 4.2 liquid flowing strength m
3/ mhr 30 45 30 45F
1The type float valve is carried kg liquid/100kg gas 3.5 6.5 5.0 16.0 angle double-acting float valves secretly and is carried kg liquid/100kg gas 2.0 3.1 2.2 5.0 angle double-acting float valves secretly and carry secretly and reduce % 42.0 52.3 58.0 68.8
As can be seen from Table 2, angle double-acting float valve mist entrainment is than F
1The type float valve reduces 42.9～68.8%.
The leakage of table 3 column plate is valve opening kinetic energy factor m/s (kg/m relatively
3)
0.58.0 14.0 liquid flowing strength m
3/ mhr 30 45 30 45F
1Type float valve leakage % 3.6 7.8 0.8 1.2 angle double-acting float valve leakage % 1.4 3.0 0.2 0.4 leakages reduce % 61.1 61.5 75.0 88.7
Find out that by table 3 leakage of angle double-acting float valve is than F
1The leakage of type float valve reduces 61.1～75.0%.
Table 4 mass-transfer efficiency is column plate effective area gas phase loading factor m/s (kg/m relatively
3)
0.51.5 liquid flowing strength m
3/ mhr 30F
1Type valve plate efficient % 75.0 angle double-acting float valve tray efficient % 83.5 angle double-acting float valves are than F
1Type valve tray efficient improves % 10.0
Claims (3)
1. angle double-acting float valve tray, angle double-acting float valve by triangle valve opening (3) that has on the column plate (2) and cooperation is with it formed, it is characterized in that valve face (6) is for triangular shaped, two waist limits (13) stamp out two boss (8) respectively downwards, valve face (6) is provided with the uvula shape float valve (7) that three faces crack, the angle double-acting float valve has two valve legs (9) and two valve pin (10), the subtended angle that the valve face of angle double-acting float valve (6) is gone up uvula shape float valve is 10 °＜θ＜30 °, the angle of triangle valve opening (3) is identical on triangle valve face (6) and the column plate, 60 °＜a of drift angle＜126 °, 30 °＜the β in base angle＜60 °, triangle valve face (6) the two waist length of sides are 30-50mm, the triangle valve opening two waist length of sides are 25-45mm on the column plate, and its bottom side length is 40～70mm.
2. angle double-acting float valve tray according to claim 1, it is characterized in that the preferred 15 °＜θ of subtended angle of the uvula shape float valve that last three faces of valve face (6) of described angle double-acting float valve crack＜25 °, the angle of triangle valve opening (3) is identical on triangle valve face (6) and the column plate, drift angle is preferably 90 °＜α≤120 °, 30 °≤the β in base angle＜45 °, the preferred 35-45mm of triangle valve face (6) the two waist length of sides, the preferred 30-40mm of the triangle valve opening two waist length of sides on the column plate, the preferred 50-60mm in its base.
3. angle double-acting float valve tray according to claim 1 is characterized in that two valve legs (9) of angle double-acting float valve insert the base and the drift angle place of triangle valve opening (3) on the column plate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94101479A CN1042800C (en) | 1994-03-02 | 1994-03-02 | Angle double-acting float valve tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94101479A CN1042800C (en) | 1994-03-02 | 1994-03-02 | Angle double-acting float valve tray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1094986A CN1094986A (en) | 1994-11-16 |
| CN1042800C true CN1042800C (en) | 1999-04-07 |
Family
ID=5030189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94101479A Expired - Lifetime CN1042800C (en) | 1994-03-02 | 1994-03-02 | Angle double-acting float valve tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1042800C (en) |
Families Citing this family (5)
| 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 |
| CN111112452A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Tower plate processing device and tower plate processing method |
| CN111117688A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Column plate and extraction column |
| CN111117686B (en) * | 2018-10-30 | 2022-10-21 | 中国石油化工股份有限公司 | Sieve plate tower |
| CN111117687B (en) * | 2018-10-30 | 2022-10-21 | 中国石油化工股份有限公司 | Column plate for sieve plate column and sieve plate column with same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081753U (en) * | 1991-02-02 | 1991-07-31 | 华东化工学院 | Column plate of guide float valve |
| CN2145059Y (en) * | 1992-12-10 | 1993-11-03 | 天津大学 | Ladder-shaped float valve with guide function |
-
1994
- 1994-03-02 CN CN94101479A patent/CN1042800C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081753U (en) * | 1991-02-02 | 1991-07-31 | 华东化工学院 | Column plate of guide float valve |
| CN2145059Y (en) * | 1992-12-10 | 1993-11-03 | 天津大学 | Ladder-shaped float valve with guide function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1094986A (en) | 1994-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Jinshida High-tech Co., Ltd. Assignor: Cheng Jian Contract fulfillment period: 2006.11.30 to 2016.11.30 contract change Contract record no.: 2009510000072 Denomination of invention: Angle double-acting float valve tray Granted publication date: 19990318 License type: Exclusive license Record date: 2009.9.22 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.11.30 TO 2016.11.30; CHANGE OF CONTRACT Name of requester: CHENGDU JINSHIDA HI-TECH CO., LTD. Effective date: 20090922 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140302 Granted publication date: 19990407 |