CN202666449U - Guiding float valve - Google Patents
Guiding float valve Download PDFInfo
- Publication number
- CN202666449U CN202666449U CN 201220320552 CN201220320552U CN202666449U CN 202666449 U CN202666449 U CN 202666449U CN 201220320552 CN201220320552 CN 201220320552 CN 201220320552 U CN201220320552 U CN 201220320552U CN 202666449 U CN202666449 U CN 202666449U
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- valve
- leg
- gap
- liquid
- float
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- Expired - Lifetime
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a guiding float valve. The guiding float valve comprises a tabular bonnet, a front valve leg and a back valve leg which are arranged at two ends of the bonnet in the length direction, and valve feet which are arranged at ends of the front valve leg and the back valve leg, wherein at least one valve edge structure is arranged on two sides of the bonnet in the width direction respectively, and comprises a bracket which is connected with the bonnet and is inclined downwards, and valve edges which are arranged at ends of the bracket and are rotated at a certain angle relative to the bracket. The guiding float valve has the advantages that the valve edge structures are arranged on the bonnet and can divide gas into a plurality of tiny gas flows to reduce the diameters of air bubbles and improve the uniformity of the diameters of the air bubbles, so that a gas-liquid contact specific surface area in a foam layer is enlarged, the gradient of a liquid surface is reduced, liquid backmixing is reduced, and the mass transfer efficiency of a float valve tower plate is improved.
Description
Technical field
The utility model relates to a kind of float valve, relates in particular to a kind of for the guide float-valve on the valve plate.
Background technology
It is large that valve plate has operating flexibility, and mist entrainment is little, and leakage is few, and disposal ability is large, the advantage that mass-transfer efficiency is high, extensive use in metallurgy, petrochemical industry, pharmaceutical industry.
At present, normally used in the industrial production is F1 type valve plate and strip-shaped float valve tray.The float valve of F1 type valve plate is constantly rotation under airflow function, causes the wearing and tearing of valve pin and valve opening, and float valve blocks easily or comes off, and affects hydrodynamics and the mass-transfer performance of valve plate.F1 type valve plate is in operating process, and air-flow outwards sprays around float valve, and backmixing of liquid phase is large on the valve plate, reduces the mass-transfer efficiency of valve plate.Simultaneously, exist sizable resistance and air-flow and can contrary liquid stream spray and make on the valve plate liquid level drop large because liquid flows through float valve, cause that the inhomogeneous and inhomogeneous phenomenon of leakage of distribution of gas produces, mass-transfer efficiency and the operating flexibility of reduction valve plate.
In order further to reduce liquid level drop on the valve plate, improve the valve plate mass-transfer efficiency, the float valve that various guiding liquid stream also occurred, such as guide float-valve, ladder-shaped float valve, arrow-like floating valve, symmetrical quadrangle float valve, ADV float valve etc., in certain opereating specification, show good hydrodynamics and mass-transfer performance.But these valve platies are in order to reduce manufacturing cost, reduce the quantity of float valve, the perforated area of general each float valve is more much bigger than sieve aperture commonly used, the sectional area of air-flow post that flows out single float valve is large, thereby the bubble that forms in froth bed is large and inhomogeneous, the gas-liquid contact area is little, affects the mass-transfer efficiency of valve plate.
Summary of the invention
Have above-mentioned deficiency in the prior art in order to overcome, the utility model provides that a kind of mass-transfer efficiency is high, the valve plate pressure drop is low, liquid level drop is little, froth bed gas holdup and bubble guide float-valve of uniform size.
The technical scheme in the invention for solving the technical problem is: a kind of guide float-valve, comprise flat valve gap, be located at front valve leg and the rear valve leg at these valve gap length direction two ends and be located at this front valve leg and the valve pin of rear valve leg end, the both sides that described valve gap is positioned at width are provided with at least one valve limit structure, and this valve limit structure comprises and connecting with described valve gap and downward-sloping support and be located at this bracket end and valve limit that relative described support rotates to an angle.
Further, the angle of described support and described valve gap is 0 ~ 58 °, and the anglec of rotation of described valve limit and described support is 0 ~ 35 °, the cross section ovalize on described valve limit.
Further, described front valve leg is positioned at the upstream position of flow direction, and described rear valve leg is positioned at the downstream position of flow direction, offers intake chute on the described rear valve leg, and described intake chute is positioned at the both sides of described rear valve leg.
Further, offer wedge-shaped slot on the described valve gap.
Further, be provided with decurved distance piece on four of described valve gap angles.
The utility model in use, the utility model is installed in the valve opening of valve plate, valve pin on front valve leg and the rear valve leg wherein one directly curved good when making the utility model, another bends after the utility model installs on the valve plate, guarantee that the utility model moves up and down but unlikely blowing off the maximum opening of limiting valve cap smoothly.Under the effect of air-flow, valve gap is opened, be separated into many strands of tiny air-flows during space that the limit of gas by valve limit structure and valve opening forms and spray into liquid layer, can reduce bubble diameter like this, improve the uniformity of bubble diameter, thereby the gas-liquid contact specific area in the increase froth bed improves the mass-transfer efficiency of valve plate, and can prevent the direct injection of gas-liquid when high tolerance.Particularly, part gas produces and the equidirectional thrust of liquid flow path direction under valve gap after running into valve limit structure, thereby the liquid on the promotion valve plate flows forward, another part gas then sprays into liquid layer on the valve gap by interstructural space, valve limit with obliquely direction, so that the local void fraction in the liquid layer of both sides reaches unanimity about the valve gap, improve the stability of froth bed, increase the disposal ability of valve plate.Even when tolerance was minimum, valve gap did not float, gas also can enter liquid layer and carry out mass transfer by the static aperture between valve limit structure and the valve opening.
Because the angle of support and valve gap is 0 ~ 58 °, the anglec of rotation of valve limit and support is 0 ~ 35 °, and the cross section ovalize on valve limit, can produce with liquid and flow equidirectional thrust, has reduced the gradient of liquid level, has reduced liquid dispersion.
Owing to offer intake chute on the rear valve leg, also can produce and the equidirectional thrust of liquid flow path direction, obviously reduce even eliminate liquid level drop on the valve plate fully, reduced liquid dispersion, reduce the resistance of valve plate, improve the mass-transfer efficiency of valve plate.And intake chute is positioned at the both sides of rear valve leg, and in the tolerance by valve gap hour, valve gap does not float, and intake chute is below valve plate, so the operation lower limit of offering the valve plate that can not raise of intake chute.
Because valve gap is provided with wedge-shaped slot, but wedge-shaped slot water conservancy diversion gas has avoided the valve gap below to form stream swirl to valve opening two side flow of last layer valve plate, has reduced the resistance of gas by valve gap.
Owing to be provided with distance piece on the valve gap, play the effect of the minimum aperture of restriction the utility model, when gas speed is very low, make valve gap and valve plate one-tenth point contact and be seated on the valve opening by it, remain that certain aperture supplies air-flow evenly to pass through, avoid valve gap to open and close uneven pulsation phenomenon, rear the utility model and valve plate bonding phenomenon also can prevent from stopping work.
The beneficial effects of the utility model are: 1, owing to be provided with valve limit structure on the valve gap, valve limit structure can become gas partitions several strands tiny air-flows, reduce bubble diameter, improve the uniformity of bubble diameter, thereby the gas-liquid contact specific area in the increase froth bed, and the angle of support and valve gap is 0 ~ 58 °, the anglec of rotation of valve limit and support is 0 ~ 35 °, the cross section ovalize on valve limit can produce with liquid and flow equidirectional thrust, has reduced the gradient of liquid level, reduced liquid dispersion, reduce the gradient of liquid level, reduced liquid dispersion, improved the mass-transfer efficiency of valve plate.2, offer intake chute on the rear valve leg, also can produce and the equidirectional thrust of liquid flow path direction, obviously reduce even eliminate liquid level drop on the valve plate fully, reduced liquid dispersion, reduce the resistance of valve plate, improve the mass-transfer efficiency of valve plate.3, valve gap is provided with wedge-shaped slot and distance piece, and wedge-shaped slot can reduce gas by the resistance of valve gap, and distance piece plays the effect of the minimum aperture of restriction the utility model.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model when opening.
Fig. 3 is the structural representation of the utility model when not opening.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, Fig. 2, a kind of guide float-valve, comprise flat valve gap 1, be located at front valve leg 2 and the rear valve leg 3 at these valve gap 1 length direction two ends, and the valve pin 4 of being located at this front valve leg 2 and rear valve leg 3 ends, the both sides that described valve gap 1 is positioned at width are provided with at least one valve limit structure, this valve limit structure comprises with described valve gap 1 and being connected and downward-sloping support 5, and be located at the valve limit 6 that these support 5 ends and relatively described support 5 rotate to an angle, described support 5 is 0 ~ 58 ° with the angle of described valve gap 1, described valve limit 6 is 0 ~ 35 ° with the anglec of rotation of described support 5, the cross section ovalize on described valve limit 6, in the present embodiment, the described valve limit structure of described valve gap 1 every side has 3.
The utility model in use, the utility model is installed in the valve opening 8 of valve plate 7, valve pin 4 on front valve leg 2 and the rear valve leg 3 wherein one directly curved good when making the utility model, another bends after the utility model installs on the valve plate 7, guarantee that the utility model moves up and down but unlikely blowing off the maximum opening of limiting valve cap 1 smoothly.Under the effect of air-flow, valve gap 1 is opened, be separated into many strands of tiny air-flows during space that the limit of gas by valve limit structure and valve opening 8 forms and spray into liquid layer, can reduce bubble diameter like this, improve the uniformity of bubble diameter, thereby the gas-liquid contact specific area in the increase froth bed improves the mass-transfer efficiency of valve plate 7, and can prevent the direct injection of gas-liquid when high tolerance.Particularly, part gas produces and the equidirectional thrust of liquid flow path direction under valve gap 1 after running into valve limit structure, thereby the liquid that promotes on the valve plate 7 flows forward, reduced the gradient of liquid level, reduced liquid dispersion, another part gas then sprays into liquid layer on the valve gap 1 by interstructural space, valve limit with obliquely direction so that valve gap about in the of 1 the local void fraction in the liquid layer of both sides reach unanimity, improve the stability of froth bed, increase the disposal ability of valve plate 7.Even when tolerance is minimum, valve gap 1 does not float, and gas also can enter liquid layer and carry out mass transfer by the static aperture between valve limit structure and the valve opening 8.
Described front valve leg 2 is positioned at the upstream position of flow direction, described rear valve leg 3 is positioned at the downstream position of flow direction, offer intake chute 9 on the described rear valve leg 3, also can produce and the equidirectional thrust of liquid flow path direction, obviously reduce even eliminate liquid level drop on the valve plate 7 fully, reduce liquid dispersion, reduced the resistance of valve plate 7, improved the mass-transfer efficiency of valve plate 7.And described intake chute 9 is positioned at the both sides of described rear valve leg 3, and in the tolerance by valve gap 1 hour, valve gap 1 does not float, and intake chute 9 is below valve plate 7, so the operation lower limit of offering the valve plate 7 that can not raise of intake chute 9.
Offer wedge-shaped slot 10 on the described valve gap 1, but wedge-shaped slot 10 water conservancy diversion gases have avoided valve gap 1 below to form stream swirl to 8 liang of side flow of valve opening of last layer valve plate 7, have reduced the resistance of gas by valve gap 1.
Be provided with decurved distance piece 11 on four angles of described valve gap 1, distance piece 11 plays the effect of the minimum aperture of restriction the utility model, when gas speed is very low, lean on it to make 7 one-tenth points of valve gap 1 and valve plate contact and be seated on the valve opening 8, remain that certain aperture supplies air-flow evenly to pass through, avoid valve gap 1 to open and close uneven pulsation phenomenon, rear the utility model and valve plate 7 bonding phenomenons also can prevent from stopping work.
Claims (7)
1. guide float-valve, comprise flat valve gap, be located at front valve leg and the rear valve leg at these valve gap length direction two ends and be located at this front valve leg and the valve pin of rear valve leg end, it is characterized in that: the both sides that described valve gap is positioned at width are provided with at least one valve limit structure, and this valve limit structure comprises and connecting with described valve gap and downward-sloping support and be located at this bracket end and valve limit that relative described support rotates to an angle.
2. according to guide float-valve claimed in claim 1, it is characterized in that: the angle of described support and described valve gap is 0 ~ 58 °, and the anglec of rotation of described valve limit and described support is 0 ~ 35 °.
3. according to claim 1 or 2 described guide float-valves, it is characterized in that: the cross section ovalize on described valve limit.
4. according to claim 1 or 2 described guide float-valves, it is characterized in that: described front valve leg is positioned at the upstream position of flow direction, and described rear valve leg is positioned at the downstream position of flow direction, offers intake chute on the described rear valve leg.
5. according to guide float-valve claimed in claim 4, it is characterized in that: described intake chute is positioned at the both sides of described rear valve leg.
6. according to claim 1 or 2 described guide float-valves, it is characterized in that: offer wedge-shaped slot on the described valve gap.
7. according to claim 1 or 2 described guide float-valves, it is characterized in that: be provided with decurved distance piece on four angles of described valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320552 CN202666449U (en) | 2012-07-04 | 2012-07-04 | Guiding float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320552 CN202666449U (en) | 2012-07-04 | 2012-07-04 | Guiding float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202666449U true CN202666449U (en) | 2013-01-16 |
Family
ID=47487385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320552 Expired - Lifetime CN202666449U (en) | 2012-07-04 | 2012-07-04 | Guiding float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202666449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130051A (en) * | 2021-12-08 | 2022-03-04 | 常州大学 | Floating valve mass transfer element |
-
2012
- 2012-07-04 CN CN 201220320552 patent/CN202666449U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130051A (en) * | 2021-12-08 | 2022-03-04 | 常州大学 | Floating valve mass transfer element |
| CN114130051B (en) * | 2021-12-08 | 2022-10-21 | 常州大学 | Floating valve mass transfer element |
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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: 20130116 |
|
| CX01 | Expiry of patent term |