CN203494520U - Cone-shaped guide float valve - Google Patents
Cone-shaped guide float valve Download PDFInfo
- Publication number
- CN203494520U CN203494520U CN201320268421.3U CN201320268421U CN203494520U CN 203494520 U CN203494520 U CN 203494520U CN 201320268421 U CN201320268421 U CN 201320268421U CN 203494520 U CN203494520 U CN 203494520U
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- valve
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Abstract
The utility model discloses a cone-shaped guide float valve and belongs to the technical field of chemical devices used for gas-liquid mass transfer and separation in chemical industries such as petroleum and coal. The float valve comprises a valve cover, a gas-liquid baffle, flow deflectors and valve legs, wherein the valve cover is cone-shaped; a plurality of downward pressed tooth flowers or alternately pressed blades are formed around two sides of the valve cover, so that bubbles are refined and the contact area of gas and liquid is increased; the gas-liquid baffle is formed by downward punching the rear end of the float valve to be vertical along the cone bottom of the cone-shaped valve cover so as to prevent gas and liquid from hedging; the flow deflectors are formed by symmetrically punching and bending the extending parts on left and right sides of the gas-liquid baffle to the central vertical line of the valve and play a role in guiding gas to a direction which forms an acute angle with the liquid flow direction; valve angles are formed on the lower edges of the flow deflectors; the left and the right flow deflectors simultaneously serve as two rear valve legs, identical in length, of the float valve; the front valve legs are formed on the top of the cone-shaped valve cover at the rear end of the float valve; valve angles are formed at the lower parts of the front valve legs; the valve cover and a valve hole are cone-shaped so that the rotation of the float valve is prevented, and thus the service life of the float valve is prolonged.
Description
Technical field:
The utility model belongs to the chemical industry equipment of gas-liquid mass transfer separation in the chemical industry such as oil, coal, is specifically related to a kind of taper guide float-valve.
Background technology:
In the chemical industry such as oil, coal, plate column is the most frequently used gas-liquid mass transfer separation equipment.Column plate in plate column is different according to the type of its gas-liquid contact element, can be divided into bubble cap plate, sieve tray, valve plate and jet tray etc., wherein valve plate because its operating flexibility is large, mass-transfer efficiency is compared with advantages of higher, be most widely used.At present, F1 type (also claiming V1 type) valve plate remains the most frequently used column plate, but a large amount of industrial practices show, in use there is following problem in F1 type float valve: (1) air-flow is blown into liquid layer from all directions along valve limit from valve opening, and without any guidance quality, the phenomenon that liquidates is obvious, back-mixing is serious, make on column plate gradient of liquid level and column plate Pressure Drop larger, liquid foam entrainment increases, and plate efficiency reduces; (2) owing to there is no movement-oriented effect, in column plate arch area, easily cause liquid to remain in a standstill and vortex phenomenon, backmixing of liquid phase aggravation, mass-transfer efficiency obviously declines; (3) on the valve gap limit between adjacent two valve legs, only have one to the support chip of lower process, can not effectively the air pocket bloating from valve opening be smashed to refinement, make Gas-Liquid Contacting mass transfer area little, affect the raising of mass-transfer efficiency; Article (4) three, structure valve leg identical and that be arranged symmetrically with makes it be easy in operation rotation, and this makes its wearing and tearing aggravation, and is easy to come off.
Summary of the invention:
The purpose of this utility model be not enough for existing guidance quality in existing float valve technology, liquidate and the problem such as back-mixing is serious, Interphase Mass Transfer contact area is little, a kind of good Liquid Flow guidance quality that has is provided, make bubbling refinement and increase Gas-liquid interfacial area, obviously reduce or eliminate and liquidate and air-teturning mixed phenomenon, effectively reduce gradient of liquid level, entrainment and plate pressure drop, improve the taper guide float-valve of mass-transfer efficiency.
For achieving the above object, the technical solution adopted in the utility model is:
The valve gap that comprises taper, at valve gap periphery, offer a plurality of tooth flowers, along downward punching press at the bottom of the cone of valve gap, there is the gas-liquid baffle plate vertical with valve gap face, extension, the gas-liquid baffle plate left and right sides has flow deflector by gas-liquid baffle plate side edge to valve body center vertical line direction symmetric punching, under flow deflector, edge is with rear valve angle, and symmetrical two flow deflectors double as two isometric rear valve legs of float valve; Valve leg before valve gap cone top part center is provided with, front valve leg bottom is provided with front valve angle.
Described tooth flower is trapezoidal, the rectangle pressing down, U-shaped or triangular structure, and adjacent two between cog have the breach of respective shapes; Or the trapezoidal or rectangular configuration that tooth flower presses down for non-notch interval.
On described valve gap, have the guider of 0～6 ligulate, trapezoidal, rectangle, polygon or arch bridge shape.
Described guider is fixed guide hole or unsteady miniature guide valve.
The angle that opens after open in described fixed guide hole and between valve gap face is 5～30 °, fixed guide hole near float valve front end to press down and and valve gap face between angle be 0～45 °, the angle between the opening direction in fixed guide hole and liquid flow path direction is 0～90 °.
Described unsteady miniature guide valve is the miniature little valve of unsteady ligulate, trapezoidal, rectangle, polygon or arch bridge shape, and its unsteady lift is 1～6mm, and opening direction is consistent with liquid flow path direction.
Upper position, described Qian Fatui center offers an oblong front pod apertures.
Described rear valve leg and angle α=95～175 ° between gas-liquid baffle plate, the length of front valve leg (L1) is more than or equal to the length (L2) of rear valve leg, and L1-L2=0～6mm.
Described rear valve leg and angle α=120～150 ° between gas-liquid baffle plate.
Described valve gap front-end-cone top partial width (L3) is less than or equal to the width (L4) of gas-liquid baffle plate, and the width of gas-liquid baffle plate (L4) is more than or equal to the width (L5) of flow deflector.
Valve gap cone of the present utility model bottom is float valve rear end, cone top part is divided into float valve front end, because there is gas-liquid baffle plate float valve rear end, in work, can only go out along both sides under valve gap and front area bubbling during airflow passes valve opening, avoided completely float valve rear end gas-liquid two-phase flow in the phenomenon that liquidates that causes of counter current contacting; Meanwhile, two ends, gas-liquid baffle plate left and right symmetry bends towards the flow deflector of float valve front end when the air-flow guiding that bubbling is gone out is acute angle direction with liquid flow path direction, free-stream flow is also had to level and smooth shunting action to the liquid stream of float valve, resistance in the time of can reducing liquid stream and flow through float valve valve body, while making biphase gas and liquid flow contact, the angle of both flow directions is acute angle, thereby forms following current guide effect; In addition, this structure also makes the sides adjacent bubbling of adjacent float valve from column plate and is also acute angle while contacting between the air-flow that goes out, has substantially eliminated the phenomenon that liquidates between adjacent float valve, therefore can effectively reduce gradient of liquid level and the Pressure Drop on column plate, reduce entrainment, improve plate efficiency.When this float valve is arranged in the arch area of tower tray, due to its good movement-oriented effect, can substantially eliminate vortex phenomenon and the viscous flow dead band of arcuate region, greatly improve the mass-transfer efficiency of this region liquid phase.Tooth flower or gear piece that float valve valve gap both sides press down can be broken into air pocket many minute bubbles when air-flow is gone out by valve side bubbling, have greatly increased the phase border contact mass transfer area of gas-liquid two-phase, thereby have improved mass-transfer efficiency.In addition, taper float valve and the corresponding upper conical valve opening design of column plate can be avoided float valve rotation phenomenon at work, have reduced the wearing and tearing of float valve valve leg, and improved its service life.
Accompanying drawing explanation:
Fig. 1 is the schematic perspective view of the utility model taper guide float-valve;
Fig. 2 is the front view of the utility model taper guide float-valve;
Fig. 3 is the top view of the utility model taper guide float-valve;
Fig. 4 is the expanded view of the utility model taper guide float-valve;
Fig. 5 is the valve opening schematic diagram of the utility model taper guide float-valve;
Fig. 6 is the front view of the utility model taper guide float-valve (band rectangle pilot hole);
Fig. 7 is the top view of the utility model taper guide float-valve (band rectangle pilot hole).
Wherein, 1-valve gap, 2-tooth flower, 3-guider, 4-gas-liquid baffle plate, 5-flow deflector, 6-rear valve angle, 7-rear valve leg, 8-front valve leg, 9-front valve angle, 10-front pod apertures.
The specific embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail.
Below in conjunction with accompanying drawing, further narrate embodiment of the present utility model and operation principle.
Referring to Fig. 1-5, the utility model comprises valve gap 1, gas-liquid baffle plate 4, flow deflector 5 and valve leg.Wherein valve gap 1 is taper, cone bottom is float valve rear end, vertex of a cone place is float valve front end, on valve gap, have the guider 3 of 0～6 ligulate, trapezoidal, rectangle, polygon or arch bridge shape, concrete, can be fixed guide hole or unsteady miniature guide valve, described unsteady miniature guide valve is the miniature little valve of unsteady ligulate, trapezoidal, rectangle, polygon or arch bridge shape, its unsteady lift is 1～6mm, and opening direction is consistent with liquid flow path direction; Trapezoidal or the rectangular teeth that the cone waist portions periphery of valve gap both sides has a plurality of trapezoidal, rectangles that press down, U-shaped or triangle or interval to press down spends 2; Gas-liquid baffle plate 4 is bored the downward punching press of bottom line to formation vertical with valve gap face in float valve rear end along valve gap; Flow deflector 5 is that gas-liquid baffle plate 4 extensions, the left and right sides form along gas-liquid baffle plate side edge to the vertical line direction symmetric punching bending of valve body center, and 5 times edges of flow deflector are with rear valve angle 6, and two of left and right symmetrical flow deflector 5 doubles as two isometric rear valve legs 7 of float valve; Float valve has three valve legs, comprise two after valve leg and a front valve leg, front valve leg 8 is in valve gap cone top part center, front valve leg 8 bottoms are provided with front valve angle 9, an oblong front pod apertures 10 is opened in front valve leg 8 upper positions, center.
Shown in Fig. 6,7, the angle that opens after open in fixed guide hole on the utility model valve gap and between valve gap face is 5～30 °, fixed guide hole near float valve front end to press down and and valve gap face between angle be 0～45 °, the angle between the opening direction in fixed guide hole and liquid flow path direction is 0～90 °; Angle α=95～175 ° between rear valve leg and gas-liquid baffle plate, preferably 120～150 °; Length (the L of front valve leg
1) be more than or equal to the length (L of rear valve leg
2), L
1-L
2=0～6mm; Valve gap cone top part partial width (L
3) be less than or equal to the width (L of gas-liquid baffle plate
4), the width (L of gas-liquid baffle plate
4) be more than or equal to the width (L of flow deflector
5).
The taper guide float-valve the utility model proposes is arranged on column plate horizontally disposed in chemical tower equipment, in normal operating, liquid phase flows to the exit weir of opposite side by the seal pot of column plate one side through tower tray, then through downspout, flow to lower one deck column plate, gas phase enters the liquid layer on tower tray by column plate below through valve opening and float valve bubbling, contact with liquid and conduct heat with mass transport process after leave liquid layer and enter column plate superjacent air space.When the gas phase flow rate rising is very little, taper float valve is still in the valve opening on tower tray completely, and the gap bubbling forming between the tooth flower that now gas phase presses down from float valve valve gap periphery and tower tray upper surface enters liquid layer; When gas phase flow rate increases gradually, because the center of gravity of this float valve is near its rear end, be subject to air-flow to raise the effect of power, float valve front end first rises gradually with the increase of gas phase flow rate, and then rise until float valve standard-sized sheet rear end, the unlatching of float valve is an open procedure gradually stably substantially, and this is conducive to the quiet run of commercial plant in startup procedure, can shorten the driving time of tower equipment.When air-flow is flowed through valve opening and float valve from bottom to top, the gas-liquid baffle plate of float valve rear end and the flow deflector of bilateral symmetry setting thereof make the air-flow can only be along both sides under valve gap and front area bubbling and go out, when therefore biphase gas and liquid flow contacts, the angle of both flow directions is acute angle, the phenomenon that liquidates of having avoided the mobile middle counter current contacting of traditional float valve rear end (meeting liquid level) gas-liquid two-phase to cause completely, and the following current guide effect of formation to liquid phase stream, therefore can effectively reduce gradient of liquid level and the Pressure Drop on column plate, reduce entrainment, improve plate efficiency.Its opening direction of pilot hole on float valve valve gap is consistent with liquid flow path direction (towards exit weir), has stronger movement-oriented effect, can accelerate valve gap top flow stream velocity, also can increase air flow rate.When this float valve is arranged in the arch area of tower tray, due to its good movement-oriented effect, can substantially eliminate vortex phenomenon and the viscous flow dead band of arcuate region, greatly improve the mass-transfer efficiency of this region liquid phase.Tooth flower or gear piece that float valve valve gap both sides press down can be broken into air pocket many minute bubbles when air-flow is gone out by valve side bubbling, greatly increase the phase border contact mass transfer area of gas-liquid two-phase, thereby improve mass-transfer efficiency.In addition, taper float valve and corresponding taper valve opening design can be avoided float valve rotation phenomenon at work, have reduced the wearing and tearing of float valve valve leg, and improved its service life.
Claims (10)
1. a taper guide float-valve, it is characterized in that: the valve gap (1) that comprises taper, at valve gap (1) periphery, offer a plurality of tooth flowers (2), along downward punching press at the bottom of the cone of valve gap (1), there is the gas-liquid baffle plate (4) vertical with valve gap (1) face, gas-liquid baffle plate (4) extension, the left and right sides has flow deflector (5) by gas-liquid baffle plate (4) side edge to valve body center vertical line direction symmetric punching, the lower edge of flow deflector (5) is with rear valve angle (6), and symmetrical two flow deflectors (5) double as two isometric rear valve legs (7) of float valve; In valve gap (1) cone top part center, be provided with front valve leg (8), front valve leg (8) bottom is provided with front valve angle (9).
2. taper guide float-valve according to claim 1, is characterized in that: described tooth flower (2) is trapezoidal, the rectangle pressing down, U-shaped or triangular structure, and adjacent two between cog have the breach of respective shapes; Or the trapezoidal or rectangular configuration that tooth flower (2) presses down for non-notch interval.
3. taper guide float-valve according to claim 1, is characterized in that: the guider (3) that has 0～6 ligulate, trapezoidal, rectangle or arch bridge shape on described valve gap (1).
4. taper guide float-valve according to claim 1, is characterized in that: described guider (3) is fixed guide hole or unsteady miniature guide valve.
5. taper guide float-valve according to claim 4, it is characterized in that: the angle that opens after open in described fixed guide hole and between valve gap face is 5～30 °, fixed guide hole near float valve front end to press down and and valve gap face between angle be 0～45 °, the angle between the opening direction in fixed guide hole and liquid flow path direction is 0～90 °.
6. taper guide float-valve according to claim 4, is characterized in that: described unsteady miniature guide valve is the miniature little valve of unsteady ligulate, trapezoidal, rectangle or arch bridge shape, and its unsteady lift is 1～6mm, and opening direction is consistent with liquid flow path direction.
7. taper guide float-valve according to claim 1, is characterized in that: described front valve leg (8) upper position, center offers an oblong front pod apertures (10).
8. taper guide float-valve according to claim 1, is characterized in that: described rear valve leg (7) and angle α=95～175 ° between gas-liquid baffle plate, the length L 1 of front valve leg (8) is more than or equal to the length L 2 of rear valve leg and L1-L2=0～6mm.
9. taper guide float-valve according to claim 1, is characterized in that: described rear valve leg (7) and angle α=120～150 ° between gas-liquid baffle plate.
10. taper guide float-valve according to claim 1, it is characterized in that: described valve gap (1) front-end-cone top partial width L3 is less than or equal to the width L4 of gas-liquid baffle plate (4), and the width L4 of gas-liquid baffle plate (4) is more than or equal to the width L5 of flow deflector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320268421.3U CN203494520U (en) | 2013-05-16 | 2013-05-16 | Cone-shaped guide float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320268421.3U CN203494520U (en) | 2013-05-16 | 2013-05-16 | Cone-shaped guide float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203494520U true CN203494520U (en) | 2014-03-26 |
Family
ID=50325527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320268421.3U Expired - Lifetime CN203494520U (en) | 2013-05-16 | 2013-05-16 | Cone-shaped guide float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203494520U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941238A (en) * | 2015-07-02 | 2015-09-30 | 苏州市科迪石化工程有限公司 | Long-strip-shaped float valve |
| CN104941567A (en) * | 2015-07-02 | 2015-09-30 | 苏州市科迪石化工程有限公司 | Long-strip-shaped floating valve |
-
2013
- 2013-05-16 CN CN201320268421.3U patent/CN203494520U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104941238A (en) * | 2015-07-02 | 2015-09-30 | 苏州市科迪石化工程有限公司 | Long-strip-shaped float valve |
| CN104941567A (en) * | 2015-07-02 | 2015-09-30 | 苏州市科迪石化工程有限公司 | Long-strip-shaped floating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: LIANG SHENGRONG Effective date: 20140319 Owner name: XIAN PETROLEUM UNIV. Free format text: FORMER OWNER: ZHANG JUNTAO Effective date: 20140319 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140319 Address after: The two East Road, 710065 Shaanxi province Xi'an Yanta District No. 18 Patentee after: XI'AN SHIYOU University Address before: Two East Road 710065 Shaanxi electronic city of Xi'an province No. 18 Patentee before: Zhang Juntao Patentee before: Liang Shengrong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |