CN201052420Y - High operating flexibility sliding plate type trapezia guided floating valve - Google Patents
High operating flexibility sliding plate type trapezia guided floating valve Download PDFInfo
- Publication number
- CN201052420Y CN201052420Y CNU2007200962685U CN200720096268U CN201052420Y CN 201052420 Y CN201052420 Y CN 201052420Y CN U2007200962685 U CNU2007200962685 U CN U2007200962685U CN 200720096268 U CN200720096268 U CN 200720096268U CN 201052420 Y CN201052420 Y CN 201052420Y
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- valve
- trapezoidal
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- plate
- float
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Abstract
The utility model relates to a high operating elasticity sliding trapezoidal guide float valve, belonging to the float technical field of gas-liquid mass transfer equipment. The float valve comprises a trapezoidal supporting of valve legs and a trapezoidal bonnet which is fixed on the trapezoidal supporting legs, and guiding holes are orderly arranged on the bonnet. A trapezoidal sliding slice is arranged on the inner side of the trapezoidal supporting legs and can slide along the valve legs, a through-hole is opened on the center of the sliding slice, the shape of the through-hole is trapezoid which is similar to the trapezoidal shape of the sliding slice, or the shape of the through-hole can be round, rectangle or triangular. The utility model is simple in structure, easy in manufacture, and reliable is usage, and the operating elasticity can reach to 1:16, thereby effectively reducing the hydraulic gradient of a major diameter powder, greatly increasing the gas-liquid mass transfer efficiency of the tower.
Description
Technical field
The utility model relates to the trapezoidal guide float-valve of a kind of high operating flexibility slide sheet type, belongs to the float valve technical field of gas-liquid mass transfer (contact) equipment.
Background technology
At present, gas-liquid, liquid liquid mass transfer apparatus that oil, chemical field adopt usually are various towers, mainly contain two kinds of packed tower and plate columns.Plate column is with the characteristics of its high-performance and low price dominate still in normal pressure and pressurized operation.Plate column is divided into sieve aperture tower tray, bubble cap tray, float valve tray etc. according to the difference of tower tray form again, and its function mainly is to play the effect of mass transfer media.Wherein float valve tray simple in structure with it, have good operating flexibility, efficient height, pressure drop is lower etc., and characteristics have obtained extensive use.
Use the more standard that is still F1 type Round float valve in the commercial plant at present, this float valve has improved mass transfer condition to a certain extent, but because still there are a lot of weak points in the restriction of its structure: gas is from ejection all around during operation, form spray easily between the valve, cause back-mixing, effectively mass transfer area is restricted simultaneously, cause gas annular space speed excessive, mist entrainment is increased, and distribution of gas is inhomogeneous, thereby mass-transfer efficiency is affected; High gas speed and uneven distribution of gas also make the local dead band that produces of column plate, have a strong impact on mass transfer effect, and especially when gas load was big, this negative effect was just more serious; Because the rotation that round valve can not stop during operation, the wearing and tearing that the valve leg can not stop can come off when reaching some cycles, influence the normal running of tower.
What another kind of application was wider is rectangular valve, the valve body rectangularity, and gas becomes 90 ° of dislocation to contact with liquid on the plate, and mass transfer effect is preferably arranged.But this valve body does not promote the component of liquid flow, causes gradient of liquid level to increase, the distribution of gas inequality, and pressure drop increases, and the part also may produce in the dead of night, and the column plate arch area also can produce liquid stream dead band simultaneously, causes air-teturning mixed phenomenon, and mass-transfer efficiency is affected.
Many in recent years scholars have designed multiple novel float valve on the basis that keeps circular float valve and rectangular valve advantage, shroud formula as sliding spool valve and spray float valve and trapezoidal guide float-valve etc.The former greatly improves operating flexibility by adding slide plate, but does not change original spray regime, thereby back-mixing and the too high not change of shortcoming of gradient of liquid level; The latter strengthens guide performance by adopting the method for trapezoidal valve body and perforate on valve gap, but operating flexibility is still waiting to improve.
Summary of the invention
The purpose of this utility model is to provide a kind of high operating flexibility slide sheet type trapezoidal guide float-valve.This guide float-valve has the advantages that operating flexibility is big, mass-transfer efficiency is high.
The utility model is realized by following technical proposals: the trapezoidal guide float-valve of a kind of high operating flexibility slide sheet type, this float valve is installed on the valve opening of the column plate 4 that has trapezoidal valve opening, and it comprises trapezoidal valve leg support 3 and the valve gap 1 that is fixed on the valve leg support valve legs and feet; Described trapezoidal valve leg support comprises that two bottom sides of support are provided with narrow bottom baffle 3-1 and wide bottom baffle 3-3 respectively, and the valve leg 3-2 of two vertical plate types is set in each baffle plate both sides, and the part that the valve leg is higher than baffle plate is used for being connected with valve gap, is referred to as float valve legs and feet 3-4; In two waist sides of support the fillet connecting plate 3-6 of downward folding is set, its two ends are offered and are used for the valve pin 3-5 that is connected with column plate; Described trapezoidal valve gap, on valve gap, be shaped on the guiding tongue hole 1-1 of regularly arranged opening towards direction of the narrow end, bar shaped installing hole 1-2 is offered in four angular positions at valve gap: it is characterized in that this float valve also comprises, below valve gap, the inboard of valve leg is provided with a trapezoidal slide plate 2 that slides up and down along the valve leg, breach is offered at the two ends of this slide plate, central authorities offer through hole 2-1, and length at two ends of through hole and the width between two waists are all greater than length at corresponding two ends of the trapezoidal perforate on the column plate and the width between two waists.
Above-mentioned trapezoidal slide plate center through hole is with the trapezoidal similar trapezoidal hole of slide plate, or offers circular port or rectangular opening or tri-angle-holed.
The hole count of above-mentioned different shape is single hole or is plural hole.
That the utility model is is simple in structure, it is reliable to be easy to make, to use, and it is above and can reduce the gradient of liquid level of major diameter tower effectively that the operating flexibility of this float valve can reach 1:16, thereby improved the gas-liquid mass transfer efficient of tower greatly.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is the valve cover structure schematic diagram.
Fig. 3 is the slide vane structure schematic diagram.
Fig. 4 is a valve leg support structural representation.
Fig. 5 is that the utility model is installed in schematic diagram on the column plate.
1 is valve gap among the figure; 2 is slide plate; 3 is the valve leg support; 4 is column plate; 1-1 is guiding tongue hole; 1-2 is the bar shaped installing hole; 2-1 is the slide plate perforate; 3-1 is narrow bottom baffle; 3-2 is the valve leg; 3-3 is that wide bottom baffle 3-4 is the valve legs and feet; 3-5 is the valve pin; 3-6 is the fillet connecting plate
The specific embodiment
Describe details of the present utility model and working condition in detail below in conjunction with Fig. 1-5.
Valve gap adopts thickness to be stamped to form for the 1mm stainless steel, and short bottom width degree is 32mm, and long bottom width degree is 37mm, and length is 85mm between two waists.Have above towards 2 in the guiding tongue hole of lacking end direction, each guiding tongue hole opening length is 20mm, and the perforate height is 2mm.Upper part, four angles has four long 5.5mm, and the bar shaped installing hole of wide 1mm is used to install valve gap.Trapezoidal slide plate adopts thickness to be made for the 2mm stainless steel, its narrow end 34mm, and wide end 39mm, long 74mm, the narrow end of the trapezoidal hole on the slide plate is 16mm, and the wide end is 20mm, and long is 32mm.The valve leg support adopts thickness to be stamped to form for the 0.8mm stainless steel, valve leg height is 20mm, each valve leg width is 5mm, narrow bottom baffle width is 21mm. between the two valve legs of narrow base, wide bottom baffle width is 26mm between the two valve legs of wide base, the downward fillet connecting plate width of support two waists is 5mm, and the valve pin of valve leg bottom is 5 * 8mm, and the upper valve legs and feet are 5 * 5mm.
The process that the utility model is installed in column plate is that support is put into the trapezoidal hole that column plate is offered, support lower valve pin is outwards bent 90 degree, thereby support is fixed on the column plate, trapezoidal slide plate is put between two pairs of valve legs of support then, and guaranteed that trapezoidal slide plate can slide by easy on and off between the valve leg.On the valve legs and feet with the rack-mount portion of valve gap, will stretch out valve pin leg bending 90 degree of valve gap part, thereby valve gap will be fixed on the valve leg support again.
The course of work of above-mentioned float valve on column plate is as follows: adapt to different gas loads by fluctuating of slide plate, have three kinds of modes of operation: (1) is when gas load is low, slide plate is parked on the column plate, the gas directly hole from the slide plate passes, and enters liquid by tongue hole, the sideshake at top; (2) along with the increase of gas load, the gas that slide plate is risen holds up, and gas passes the slide plate hole and sideshake enters liquid, and portion gas enters liquid by the tongue hole; (3) when gas load continuation increase, slide plate rises to the valve gap bottom always, and at this moment the gas major part enters liquid by sideshake, and a small amount of gas enters liquid by the tongue hole.Have tongue hole on the valve gap towards the liquid flow path direction, gas is by tongue hole generation thrust forward, thereby reduce gradient of liquid level greatly, trapezoidal valve body can produce component forward simultaneously, to liquid have forward impetus, also effectively reduced the liquid level minuent, gradient of liquid level has been eliminated in both actings in conjunction basically, can make distribution of gas more even like this.
The concrete application example of the utility model, the desulfurizing tower of certain petrochemical plant, diameter is 2800mm, adopts the H in the MDEA solution suction conversion gas on the technology
2S, the solution internal circulating load is 350m
3/ h, liquid hollow-spraying-tower density is 57m
3/ m
2H requires absorption efficiency to reach more than 98%, and considers production cycle property, and operating flexibility is designed to 20-130%.The F1 float valve of the former employing single overflow of this tower because elasticity is low, during underload when column plate leakage, high load capacity the column plate liquid level drop big, the situation that absorption efficiency does not reach requirement often appears.Adopt the trapezoidal guide float-valve of high operating flexibility slide sheet type, design 205 of every layer of column plate stainless steel float valve quantity.The result of production operation shows, after adopting the trapezoidal guide float-valve of high operating flexibility slide sheet type, make this tower operating flexibility significantly improve, satisfying under the situation of absorption efficiency, its operating flexibility is greater than 12, column plate liquid levels drop is less than 15mm, and absorption efficiency all reaches technical requirement more than 98% under any operating mode, obtained favorable economic benefit.
Claims (3)
1. one kind high trapezoidal guide float-valve of operating flexibility slide sheet type, this float valve is installed on the valve opening of the column plate (4) that has trapezoidal valve opening, and it comprises trapezoidal valve leg support (3) and is fixed in valve gap (1) on the valve leg support valve legs and feet; Described trapezoidal valve leg support comprises that two bottom sides of support are provided with narrow bottom baffle (3-1) and wide bottom baffle (3-3) respectively, the valve leg (3-2) of two vertical plate types is set in each baffle plate both sides, the part that the valve leg is higher than baffle plate is used for being connected with valve gap, is referred to as float valve legs and feet (3-4); In two waist sides of support the fillet connecting plate (3-6) of downward folding is set, its two ends are offered and are used for the valve pin (3-5) that is connected with column plate; Described trapezoidal valve gap, on valve gap, be shaped on the guiding tongue hole (1-1) of regularly arranged opening towards direction of the narrow end, bar shaped installing hole (1-2) is offered in four angular positions at valve gap: it is characterized in that this float valve also comprises, below valve gap, the inboard of valve leg is provided with a trapezoidal slide plate (2) that slides up and down along the valve leg, breach is offered at the two ends of this slide plate, central authorities offer through hole (2-1), and length at two ends of through hole and the width between two waists are all greater than length at corresponding two ends of the trapezoidal perforate on the column plate and the width between two waists.
2. by the trapezoidal guide float-valve of the described high operating flexibility slide sheet type of claim 1, it is characterized in that trapezoidal slide plate center through hole is with the trapezoidal similar trapezoidal hole of slide plate, or offer circular port or rectangular opening or tri-angle-holed.
3. by the trapezoidal guide float-valve of the described high operating flexibility slide sheet type of claim 2, it is characterized in that trapezoidal hole, circular port, rectangular opening or tri-angle-holed hole count are single hole or are plural hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200962685U CN201052420Y (en) | 2007-06-06 | 2007-06-06 | High operating flexibility sliding plate type trapezia guided floating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200962685U CN201052420Y (en) | 2007-06-06 | 2007-06-06 | High operating flexibility sliding plate type trapezia guided floating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201052420Y true CN201052420Y (en) | 2008-04-30 |
Family
ID=39392089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200962685U Expired - Fee Related CN201052420Y (en) | 2007-06-06 | 2007-06-06 | High operating flexibility sliding plate type trapezia guided floating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201052420Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209069A (en) * | 2014-09-05 | 2014-12-17 | 北京石油化工工程有限公司 | Gas distribution structure of slurry bed reactor |
| CN111389342A (en) * | 2020-03-26 | 2020-07-10 | 苏州科迪环保石化股份有限公司 | Strip-shaped float valve tower disc for preventing float valve from being adhered |
-
2007
- 2007-06-06 CN CNU2007200962685U patent/CN201052420Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209069A (en) * | 2014-09-05 | 2014-12-17 | 北京石油化工工程有限公司 | Gas distribution structure of slurry bed reactor |
| CN111389342A (en) * | 2020-03-26 | 2020-07-10 | 苏州科迪环保石化股份有限公司 | Strip-shaped float valve tower disc for preventing float valve from being adhered |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20110606 |