CN202490458U - Segmental shaped guided floating valve - Google Patents
Segmental shaped guided floating valve Download PDFInfo
- Publication number
- CN202490458U CN202490458U CN2012200929832U CN201220092983U CN202490458U CN 202490458 U CN202490458 U CN 202490458U CN 2012200929832 U CN2012200929832 U CN 2012200929832U CN 201220092983 U CN201220092983 U CN 201220092983U CN 202490458 U CN202490458 U CN 202490458U
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- valve
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Abstract
The utility model belongs to the technical field of chemical equipment for gas-liquid mass transfer separation in chemical industry such as petroleum and coal and provides a segmental shaped guided floating valve. The floating valve comprises a valve cover, a gas-liquid damper, flow deflectors and valve legs, wherein the valve cover is in a segmental shape. A plurality of flower shaped teeth which are pressed downward or a plurality of teeth sheets which are pressed downward at intervals are arranged on the rim of a circular portion of the valve cover so that gas bubbles are refined and the gas-liquid contact area is increased. The back end of the floating valve is punched downward to perpendicular status along the segmental line of the valve cover to form the gas-liquid damper and hedging of the gas-liquid is avoided. Extending portions of the left and the right sides of the gas-liquid damper is punched and bended towards the direction of a valve center perpendicular line to form the flow deflectors which have the function of guiding gas flow guidance and liquid flow to the direction of an acute angle. The lower edges of the flow deflectors are provided with the valve legs, the left and the right flow deflectors can be also served as two valve legs of the floating valve with the same length. A front valve leg is located on the position that the edge of the valve cover faces to the segmental portion and the lower portion of the front valve leg is provided with a valve corner. The segmental design of the valve cover and a valve hole can further prevent the rotating of the floating valve and the service life of the floating valve can be prolonged.
Description
Technical field
The utility model belongs to the chemical industry equipment that gas-liquid mass transfer separates in the chemical industry such as oil, coal, is specifically related to a kind of circle and lacks the shape guide float-valve.
Background technology
In chemical industry such as oil, coal, plate column is the most frequently used gas-liquid mass transfer separation equipment.Column plate in the 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., and wherein valve plate is used the most extensive because its operating flexibility is big, mass-transfer efficiency is than advantages such as height.At present, F1 type (also claiming the V1 type) valve plate remains the most frequently used column plate, but a large amount of industrial practices shows; In use there is following problem in F1 type float valve: (1) air-flow is blown into liquid layer from all directions along the valve limit from valve opening, do not have any guidance quality, and the phenomenon that liquidates is obvious; Back-mixing is serious; It is bigger that gradient of liquid level and column plate pressure are fallen, and liquid foam entrainment increases, and plate efficiency reduces; (2) owing to there is not movement-oriented effect, be prone to cause liquid to remain in a standstill and vortex phenomenon in the column plate arch area, the backmixing of liquid phase aggravation, mass-transfer efficiency obviously descends; (3) have only a support chip on the valve gap limit between adjacent two valve legs, can not effectively the air pocket that bloats from valve opening be smashed refinement, make the gas-liquid mass transfer area that contacts little, influence the raising of mass-transfer efficiency to lower process; Article (4) three, structure valve leg identical and symmetric arrangement makes it be easy to rotation in operation, and this makes its wearing and tearing aggravation, and is easy to come off.
Summary of the invention
The purpose of the utility model be not enough to existing guidance quality in the existing float valve technology, liquidate and problem such as back-mixing is serious, gas-liquid interphase mass transfer contact area is little; A kind of good Liquid Flow guidance quality that has is provided; Make the bubbling refinement and increase the gas-liquid area that contacts; Obviously reduce or eliminate and liquidate and air-teturning mixed phenomenon, effectively reduce gradient of liquid level, entrainment and plate pressure drop, the circle that improves mass-transfer efficiency lacks the shape guide float-valve.
For achieving the above object; The technical scheme that the utility model adopts is: comprise that circle lacks the valve gap of shape; Offer a plurality of tooth flowers at the valve gap periphery, along punching press under the scarce alignment of the circle of valve gap the gas-liquid baffle plate vertical with valve gap arranged, extension, the gas-liquid baffle plate left and right sides lacks the place, summit by circle has flow deflector to the vertical line direction punching press of valve body center; The flow deflector lower edge has valve angle, back, about two isometric back valve legs of two flow deflector double as float valves; Divide valve leg before locate to be provided with at valve gap edge and round segmental part, preceding valve leg bottom is provided with preceding valve angle.
Trapezoidal, rectangle, U type or the triangular structure of described tooth flower for pressing down, adjacent two between cog have the breach of respective shapes; Perhaps tooth is spent the trapezoidal or rectangular configuration that presses down at interval for non-notch.
The pilot hole that has the fixing of 1～7 ligulate, trapezoidal, rectangle, polygon or arch bridge shape on the described valve gap or float.
The angle that described pilot hole opens between back and the valve gap face is 5～30 °, and the angle between the opening direction of pilot hole and the flow direction is 0～90 °.
Valve leg center offers an oblong preceding pod apertures on the top before described.
The round segmental part of described valve gap 1 divides corresponding fan angle, alpha=25～75 °.
The round segmental part of described valve gap 1 divides corresponding fan angle, alpha=45～55 °.
Angle β=45～120 after described two between the valve leg °, the length (L of preceding valve leg
1) more than or equal to the length (L of back valve leg
2), and L
1-L
2=0～6mm.
The utility model circle lacks the place and is the float valve rear end; Divide over against locating to be the float valve front end with round segmental part; Because there is the gas-liquid baffle plate float valve rear end; Can only go out along both sides under the valve gap and front area bubbling during the airflow passes valve opening in the work, avoided fully float valve rear end gas-liquid two-phase flow in the phenomenon that liquidates that causes of counter current contacting; Meanwhile; Gas-liquid baffle plate right ends is along the arcuation flow deflector on valve opening limit; When air-flow that bubbling is gone out guiding is the acute angle direction with the flow direction, free-stream flow also there is level and smooth shunting action to the flow of float valve, the resistance in the time of can reducing flow and flow through the float valve valve body; The angle of both flow directions is an acute angle when biphase gas and liquid flow contacts, thereby forms the following current guide effect; In addition; This structure also makes the sides adjacent bubbling of adjacent float valve from column plate and also is acute angle during contact between the air-flow that goes out, has eliminated the phenomenon that liquidates between adjacent float valve basically, and the gradient of liquid level and the pressure that therefore can effectively reduce on the column plate fall; Reduce entrainment, improve plate efficiency.When this float valve is arranged in the arch area of tower tray,, improve the mass-transfer efficiency of this zone gas-liquid phase greatly owing to its good movement-oriented effect, vortex phenomenon and the viscous flow dead band that can eliminate arcuate region basically.Tooth flower or gear piece that float valve valve gap both sides press down can be broken into many minute bubbles with air pocket when air-flow is gone out by valve side bubbling, increased the phase border contact mass transfer area of gas-liquid two-phase greatly, thereby improved mass-transfer efficiency.In addition, circle lacks the float valve and the design of corresponding valve opening of shape can avoid float valve rotation phenomenon at work, has reduced the wearing and tearing of float valve valve leg, and improved its service life.
Description of drawings
Fig. 1 is the schematic perspective view that the utility model circle lacks the shape guide float-valve.
Fig. 2 is the expanded view that circle shown in Figure 1 lacks the shape guide float-valve.
Fig. 3 is the front view that circle shown in Figure 1 lacks the shape guide float-valve.
Fig. 4 is the left view that circle shown in Figure 1 lacks the shape guide float-valve.
Fig. 5 is the valve opening sketch map that circle shown in Figure 1 lacks the shape guide float-valve.
Wherein, 1-valve gap, 2-tooth flower, 3-pilot hole, 4-gas-liquid baffle plate, 5-flow deflector, valve angle behind the 6-, valve angle before the valve leg before the valve leg behind the 7-, 8-, 9-, pod apertures before the 10-
The specific embodiment
Further narrate the embodiment and the operation principle of the utility model below in conjunction with accompanying drawing.
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 lacks shape for circle; Circle lacks the place and is the float valve rear end; Divide over against locating to be the float valve front end with round segmental part; The pilot hole 3 that has the fixing of 1～7 ligulate, trapezoidal, rectangle, polygon or arch bridge shape on the valve gap or float, the circular portion periphery of valve gap both sides have a plurality of trapezoidal, rectangles that press down, U type or triangular structure tooth to spend 2, and adjacent two teeth are spent the breach that respective shapes is arranged between 2; Perhaps tooth is spent the 2 trapezoidal or rectangular configuration that press down at interval for non-notch; Gas-liquid baffle plate 4 lacks punching press to vertical formation with the valve gap face under the alignment in the float valve rear end along the valve gap circle; To be extensions, gas-liquid baffle plate 4 left and right sides lack the place, summit by circle to flow deflector 5 forms to valve body center vertical line direction pressing and bending, and flow deflector 5 lower edges have valve angle, back 6, about two of two flow deflector 5 double as float valves isometric after valve legs 7; Float valve has 3 valve legs, comprise 2 after valve leg and 1 preceding valve leg, preceding valve leg 8 divides over against locating at valve gap 1 edge and round segmental part, preceding valve leg 8 bottoms are provided with preceding valve angle 9, an oblong preceding pod apertures 10 is opened at preceding valve leg 8 centers on the top.
Valve gap 1 round segmental part of the utility model divides corresponding fan angle, alpha=25～75 °, preferred 45～55 °; On the valve gap pilot hole 3 open the back and the valve gap face between angle be 5～30 °, the angle between the opening direction of pilot hole and the flow direction is 0～90 °; Angle β=45～120 that form between the valve leg after two °, the length (L of preceding valve leg
1) more than or equal to the length (L of valve leg after two
2), L
1-L
2=0～6mm.The circle that the utility model proposes lacks the shape float valve and is installed on the column plate of horizontal arrangement in the chemical tower equipment; In the normal running; Liquid phase is flowed to the exit weir of opposite side through tower tray by the seal pot of column plate one side; Flow to down one deck column plate through downspout then, gas phase then gets into the liquid layer on the tower tray by column plate below through valve opening and float valve bubbling, contact with liquid and conduct heat and mass transport process after leave liquid layer entering column plate superjacent air space.When the gas phase flow that rises was very little, circle lacked the shape float valve and is still in fully in the valve opening on the tower tray, the slit bubbling entering liquid layer that forms between the tooth flower that this moment, gas phase pressed down from float valve valve gap periphery and tower tray upper surface; When the gas phase flow increases gradually; Because the center of gravity of this float valve near its rear end, receives air-flow to raise the effect of power, the float valve front end rises with the increase of gas phase flow earlier gradually; And then rise until the float valve standard-sized sheet rear end; The unlatching of float valve is an open procedure gradually stably basically, and this helps 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 arcuation flow deflector of both sides thereof make the air-flow can only be along both sides under the valve gap and front area bubbling and go out; The angle of both flow directions was an acute angle when therefore biphase gas and liquid flow contacted; The phenomenon that liquidates of having avoided the mobile middle counter current contacting of traditional float valve rear end gas-liquid two-phase to cause fully, and form following current guide effect to liquid phase stream, the gradient of liquid level and the pressure that therefore can effectively reduce on the column plate fall; Reduce entrainment, improve plate efficiency.Its opening direction of pilot hole on the float valve valve gap is consistent with flow 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,, improve the mass-transfer efficiency of this zone gas-liquid phase greatly owing to its good movement-oriented effect, vortex phenomenon and the viscous flow dead band that can eliminate arcuate region basically.Tooth flower or gear piece that float valve valve gap both sides press down can be broken into many minute bubbles with air pocket when air-flow is gone out by valve side bubbling, increase the phase border contact mass transfer area of gas-liquid two-phase greatly, thereby improve mass-transfer efficiency.In addition, circle lacks the float valve and the design of corresponding valve opening of shape can avoid float valve rotation phenomenon at work, has reduced the wearing and tearing of float valve valve leg, and improved its service life.
Claims (8)
1. a circle lacks the shape guide float-valve; It is characterized in that: comprise that circle lacks the valve gap (1) of shape; Offer a plurality of tooth flowers (2) at valve gap (1) periphery, along punching press under the scarce alignment of the circle of valve gap (1) the gas-liquid baffle plate (4) vertical with valve gap (1) face arranged, gas-liquid baffle plate (4) extension, the left and right sides lacks the place, summit by circle has flow deflector (5) to the vertical line direction punching press of valve body center; Flow deflector (5) lower edge has valve angle (6), back, about the isometric back of two of two flow deflectors (5) double as float valve valve legs (7); Divide valve leg (8) before locate to be provided with at valve gap (1) edge and round segmental part, preceding valve leg (8) bottom is provided with preceding valve angle (9).
2. circle according to claim 1 lacks the shape guide float-valve, it is characterized in that: trapezoidal, rectangle, U type or the triangular structure of described tooth flower (2) for pressing down, and adjacent two between cog have the breach of respective shapes; Perhaps tooth is spent the trapezoidal or rectangular configuration that (2) press down for non-notch at interval.
3. circle according to claim 1 lacks the shape guide float-valve, it is characterized in that: the pilot hole (3) that has the fixing of 1～7 ligulate, trapezoidal, rectangle, polygon or arch bridge shape on the described valve gap (1) or float.
4. circle according to claim 3 lacks the shape guide float-valve, it is characterized in that: the angle that described pilot hole (3) opens between back and the valve gap face is 5～30 °, and the angle between the opening direction of pilot hole and the flow direction is 0～90 °.
5. circle according to claim 1 lacks the shape guide float-valve, it is characterized in that: valve leg (8) center offers an oblong preceding pod apertures (10) on the top before described.
6. circle according to claim 1 lacks the shape guide float-valve, it is characterized in that: the round segmental part of described valve gap (1) divides corresponding fan angle, alpha=25～75 °.
7. circle according to claim 1 lacks the shape guide float-valve, it is characterized in that: the round segmental part of described valve gap (1) divides corresponding fan angle, alpha=45～55 °.
8. circle according to claim 1 lacks the shape guide float-valve, it is characterized in that: angle β=45～120 after described two between the valve leg (7) °, the length (L of preceding valve leg (8)
1) more than or equal to the length (L of back valve leg
2), and L
1-L
2=0～6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200929832U CN202490458U (en) | 2012-03-13 | 2012-03-13 | Segmental shaped guided floating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200929832U CN202490458U (en) | 2012-03-13 | 2012-03-13 | Segmental shaped guided floating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202490458U true CN202490458U (en) | 2012-10-17 |
Family
ID=46996703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200929832U Expired - Lifetime CN202490458U (en) | 2012-03-13 | 2012-03-13 | Segmental shaped guided floating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202490458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920815A (en) * | 2014-04-23 | 2014-07-16 | 无锡市华诚石化设备有限责任公司 | Progressive stamping die for round float valve and stamping technology |
| CN104941234A (en) * | 2015-06-29 | 2015-09-30 | 苏州市科迪石化工程有限公司 | Circular damping float valve tower disk |
| CN105582687A (en) * | 2014-10-24 | 2016-05-18 | 中国石油化工股份有限公司 | Swirling-flow float valve tower plate |
-
2012
- 2012-03-13 CN CN2012200929832U patent/CN202490458U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920815A (en) * | 2014-04-23 | 2014-07-16 | 无锡市华诚石化设备有限责任公司 | Progressive stamping die for round float valve and stamping technology |
| CN105582687A (en) * | 2014-10-24 | 2016-05-18 | 中国石油化工股份有限公司 | Swirling-flow float valve tower plate |
| CN104941234A (en) * | 2015-06-29 | 2015-09-30 | 苏州市科迪石化工程有限公司 | Circular damping float valve tower disk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |
|
| CX01 | Expiry of patent term |