CN103816853A - Special-pipe liquid even-distribution apparatus for packed tower - Google Patents
Special-pipe liquid even-distribution apparatus for packed tower Download PDFInfo
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- CN103816853A CN103816853A CN201410067826.XA CN201410067826A CN103816853A CN 103816853 A CN103816853 A CN 103816853A CN 201410067826 A CN201410067826 A CN 201410067826A CN 103816853 A CN103816853 A CN 103816853A
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Abstract
The invention discloses a special-pipe liquid even-distribution apparatus for a packed tower. The apparatus comprises horizontally arranged special-pipes; the cross section of each special-pipe is non-circular, and two planes, two lines or a plane and a line of each special-pipe respectively located at an upper position and a lower position are mutually parallel; on the premise that vertical height of the special-pipe is not changed, the area of the vertical cross section of the special-pipe gradually decreases along the flow direction of liquid; and the lower part of the special-pipe is provided with a plurality of liquid distribution holes with a same diameter at an equal interval on a same horizontal plane. According to the invention, flow velocity is maintained unchanged by changing the sectional areas of the pipes, so static energy of the liquid is maintained unchanged, which accords with principles of the Bernoulli equation and enables congenital insufficiency of liquid distribution performance to be overcome in the aspect of a mechanism.
Description
Technical field
The present invention relates to chemical filler tower tubular liquid distribution apparatus technical field, particularly relate to a kind of packed tower shape tube liquid and be evenly distributed device.
Background technology
Denier Bernoulli Jacob has proposed " bernoulli principle " in 1726.This is before hydromechanical continuum theory establishing equation, and the basic principle that hydraulics adopts its essence is the conservation of mechanical energy of fluid.That is: kinetic energy+gravitional force+pressure potential=constant.Its most famous inference is: contour when mobile, flow velocity is large, and pressure is just little.
The tubular liquid distribution apparatus of existing each version, what generally adopt is circular uiform section pipe, known according to Bai Nuli equation, the liquid measure that each distribution hole on its horizontally disposed distributor pipe flows out depends on the static energy (potential energy is zero) on He Gaichu cross section, aperture, from the liquid feeding end of distributor pipe to end, by being up to zero variation, static energy changes its kinetic energy from small to large, because the kinetic energy+gravitional force+pressure potential=constant on arbitrary cross section of tubular liquid distribution apparatus, so the liquid measure that each distribution hole flows out can not equate, so existing tubular liquid distribution apparatus is second-rate.
Summary of the invention
The object of the invention is the liquid-distribution property deficiency and the above technical problem of defect of distribution machine reason that exist for existing chemical filler tower tubular liquid distribution apparatus, and provide a kind of packed tower shape tube liquid to be evenly distributed device.
For realizing the technical scheme that object of the present invention adopts be: a kind of packed tower shape tube liquid is evenly distributed device, it is characterized in that the shape tube that comprises that horizontal direction arranges, the cross section of described shape tube is noncircular cross section; Two planes up and down, two lines or plane and the line of described shape tube are parallel to each other; Described shape tube is not changing under the prerequisite of vertical height, diminishes gradually along the area of the vertical cross-section of the flow direction shape tube of liquid; The bottom of shape tube is in the first-class identical liquid distribution hole, multiple apertures that is arranged at intervals with of same level.
Further, the vertical cross-section of described shape tube be shaped as upper and lower two planes, two lines or plane and line polygon parallel to each other.
Wherein, the vertical cross-section of shape tube be shaped as rectangle time, its upper and lower two plane keeping parallelisms, along liquid flow path direction, dwindle the sectional area of the vertical cross-section of shape tube gradually by shortening gradually distance between two vertical planes of rectangle, its static energy is remained unchanged; Described liquid distribution hole is arranged in same level, constant to ensure that drop passes through the flow velocity in liquid distribution hole.
Wherein, the vertical cross-section of shape tube be shaped as triangle time, the line that it is upper and lower and plane keeping parallelism, dwindle the triangle area of shape tube vertical cross-section by shortening gradually the angle of two hypotenuses of triangle gradually, and its static energy is remained unchanged; Described liquid distribution hole is arranged in same level, constant to ensure that drop passes through the flow velocity in liquid distribution hole.
Wherein, the vertical cross-section of shape tube be shaped as rhombus time, the rhombus of its vertical cross-section must make the line keeping parallelism at upper and lower two ends, keep its vertical height inconvenience, its potential energy is remained unchanged, by changing gradually the relative distance of rhombus both sides hypotenuse, the rhombus area of shape tube vertical cross-section is dwindled gradually; Described liquid distribution hole is arranged in same level, constant to ensure that drop passes through the flow velocity in liquid distribution hole.
Wherein, being shaped as when the trapezoidal of vertical cross-section of shape tube, trapezoidal can be both up-narrow and down-wide structure, can be also structure wide at the top and narrow at the bottom, need make upper and lower two plane keeping parallelisms; By changing the relative distance between two trapezoidal sides, the trapezoidal area of shape tube vertical cross-section is dwindled gradually, its static energy is remained unchanged; Described liquid distribution hole is arranged in same level, constant to ensure that drop passes through the flow velocity in liquid distribution hole.
In addition, the shape of the vertical cross-section of described shape tube can be the same or different; Preferably, the shape of the vertical cross-section of described shape tube is identical, can save like this manufacturing cost, the flow velocity when being convenient to control liquid and distributing in shape tube.
Preferably, the inwall angle of cut place of described shape tube is that arc structure connects, and acute angle or right angle place that the shape tube inwall that liquid is flowed through forms are set to fillet structure, its role is to effectively to reduce liquid flowing resistance, improve the flow effect of liquid.
Operation principle of the present invention is: when liquid does steady flow in tubulose liquid distribution device, its flow rate of liquid=volume flow/pipeline section is long-pending, because having liquid measure, liquid distribution hole flows out, therefore volume flow is reducing, and cause flow velocity reducing, square being inversely proportional to of the flow velocity of incompressible fluid in circular pipe and internal diameter of the pipeline, does not change if pipeline section is long-pending, and unbalanced situation will appear in the outflow liquid measure in liquid distribution hole; Shape tube structure provided by the invention reduces its vertical sectional area gradually, can maintain flow velocity constant, makes the liquid outlet quantity in liquid distribution hole identical, to realize the uniform object of cloth liquid.
Compared with prior art, the invention has the beneficial effects as follows: to amass to maintain flow velocity constant by changing pipeline section, thereby it is constant to maintain the static energy of liquid, meets bernoulli equation principle, solves the congenital deficiency of liquid-distribution property from mechanism; The present invention can be used to manufacture feeder, distributor and the distributor of chemical tower, can be widely used in the industrial circles such as chemical industry, petrochemical industry, ethene, oil refining.
Accompanying drawing explanation
The liquid that is respectively shape tube vertical cross-section and is rectangle as shown in A, B, C, D in Fig. 1 is evenly distributed stereogram, right view, top view, the front view of device;
As shown in A, B, C, D in Fig. 2, being respectively shape tube vertical cross-section is stereogram, right view, top view, the front view that leg-of-mutton liquid is evenly distributed device;
The liquid that is respectively shape tube vertical cross-section and is rhombus as shown in A, B, C, D in Fig. 3 is evenly distributed stereogram, right view, top view, the front view of device;
Being illustrated in figure 4 shape tube vertical cross-section is trapezoidal structural representation;
Be illustrated in figure 5 the vertical cross-section structural representation of another shape tube.
As A, B in Fig. 6 are respectively the installation component structural representation that vertical cross-section is the shape tube of rectangle.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment:
The present invention relates to a kind of packed tower shape tube liquid and be evenly distributed device, comprise the shape tube that horizontal direction arranges, the cross section of described shape tube is noncircular cross section; Two planes up and down, two lines or plane and the line of described shape tube are parallel to each other, to guarantee that potential energy equates; Described shape tube is not changing under the prerequisite of vertical height, diminishes gradually along the area of the vertical cross-section of the flow direction shape tube of liquid; The bottom of shape tube is in the first-class identical liquid distribution hole 1, multiple apertures that is arranged at intervals with of same level.
Described liquid distribution hole 1 is horizontally disposed with along liquid flow direction, according to actual conditions, liquid distribution hole 1 can be set to a row, can be also two rows; If be set to two rows' liquid distribution hole, require it for being symmetrical arranged, two rows' liquid distribution hole 1 is in same level.
Further, the vertical cross-section of described shape tube be shaped as upper and lower two planes, two lines or plane and line polygon parallel to each other, below respectively take the rectangle in Fig. 1-4, triangle, rhombus, be trapezoidally specifically described as example.
The liquid that is respectively shape tube vertical cross-section and is rectangle as shown in A, B, C, D in Fig. 1 is evenly distributed stereogram, right view, top view, the front view of device; The vertical cross-section of shape tube be shaped as rectangle time, its upper and lower two plane keeping parallelisms, along liquid flow path direction, dwindle gradually the sectional area of the vertical cross-section of shape tube by shortening gradually distance between two vertical planes of rectangle, its static energy is remained unchanged, being distributed in same level of liquid distribution hole 1, constant to ensure that drop passes through the flow velocity in liquid distribution hole 1.
As shown in A, B, C, D in Fig. 2, being respectively shape tube vertical cross-section is stereogram, right view, top view, the front view that leg-of-mutton liquid is evenly distributed device; The vertical cross-section of shape tube be shaped as triangle time, the line that it is upper and lower and plane keeping parallelism, by shortening gradually the angle a of two hypotenuses of triangle, the triangle area of shape tube vertical cross-section is dwindled gradually, its static energy is remained unchanged, being distributed in same level of liquid distribution hole 1, constant to ensure that drop passes through the flow velocity in liquid distribution hole 1.
The liquid that is respectively shape tube vertical cross-section and is rhombus as shown in A, B, C, D in Fig. 3 is evenly distributed stereogram, right view, top view, the front view of device; The vertical cross-section of shape tube be shaped as rhombus time, the rhombus of its vertical cross-section must make the line keeping parallelism at upper and lower two ends, keep its vertical height constant, its potential energy is remained unchanged, by changing gradually the relative distance of rhombus both sides hypotenuse, the rhombus area of shape tube vertical cross-section is dwindled gradually, being distributed in same level of liquid distribution hole 1, constant to ensure that drop passes through the flow velocity in liquid distribution hole 1.
As shown in Figure 4, being shaped as when the trapezoidal of vertical cross-section of shape tube, trapezoidal can be both up-narrow and down-wide structure, can be also structure wide at the top and narrow at the bottom, need make upper and lower two plane keeping parallelisms; By changing the relative distance between two trapezoidal sides, the trapezoidal area of shape tube vertical cross-section is dwindled gradually, its static energy is remained unchanged, being distributed in same level of liquid distribution hole 1, constant to ensure that drop passes through the flow velocity in liquid distribution hole 1.
It is pointed out that vertical cross-section in figure is triangle, trapezoidal shape tube, its vertical cross-section can be also del or inverted trapezoidal structure.
Be illustrated in figure 5 the structural representation of the vertical cross-section of another shape tube, described liquid distribution hole 1 is arranged on the bottom of shape tube, it is a row or two rows that liquid distribution hole can be set as required, if be set to two rows, requirement two rows' liquid distribution holes must be in same level, to guarantee that its potential energy equates.
In addition, as preferred technical scheme, the shape of the vertical cross-section of described shape tube is identical, the area of the vertical cross-section of the shape tube that so-called " shape is identical " refers to diminishes gradually along liquid flow path direction, but the variation of its shape is continuous, can save like this manufacturing cost, the flow velocity when being convenient to control liquid and distributing in shape tube.For instance, the shape tube vertical cross-section at liquid stream top is trapezoidal, is still trapezoidal, and needn't becomes triangle or rectangle at the liquid stream end of shape tube, can increase like this processing cost of shape tube.
Preferably, the inwall angle of cut place of described shape tube is that arc structure connects, and acute angle or right angle place that the shape tube inwall that liquid is flowed through forms are set to fillet structure, can reduce liquid flowing resistance, effectively improve the flow effect of liquid.
In Fig. 6, A, B are respectively the installation component structural representation that vertical cross-section is the shape tube of rectangle, raw material rectangular steel plates is tailored into trapezoidal steel plate 11 as required, as shown in Fig. 6-A, then carry out punching press according to dotted line position in figure and make its 90-degree bent, then with Fig. 6-B in the steel plate 12 square-section special pipe that is welded.
Experiment shows, real decisions liquid stream flow regime be the dimensionless number that of forming by kinematic viscosity ν, caliber d tri-numbers of the mean flow rate v in pipe, liquid is called reynolds number Re.The physical significance of Reynolds number: the power that affects liquid flow mainly contains inertia force and viscous force, Reynolds number is exactly the zero dimension ratio of inertia force to viscous force.
Shape tube of the present invention is on-circular cross-section pipeline, and for on-circular cross-section pipeline, reynolds number Re can calculate with following formula:
Re＝4vR/ν
The hydraulic radius that in formula, R is passage section, it equals the net sectional area A of liquid stream and the ratio of its wetted perimeter χ (girth of the solid wall surface contacting with liquid on passage section), i.e. R=A/ χ; Water conservancy radius is very large to the through-flow capacity of pipeline, and water conservancy radius is large, shows that liquid stream contacts with tube wall few, and through-current capability is large; Water conservancy radius is little, shows that liquid stream contacts with tube wall many, and through-current capability is little.
Operation principle of the present invention is: when liquid does steady flow in tubulose liquid distribution device, its flow rate of liquid=volume flow/pipeline section is long-pending, because having liquid measure, liquid distribution hole 1 flows out, therefore volume flow is reducing, and cause flow velocity reducing, square being inversely proportional to of the flow velocity of incompressible fluid in circular pipe and internal diameter of the pipeline, does not change if pipeline section is long-pending, and unbalanced situation will appear in the outflow liquid measure in liquid distribution hole 1; Shape tube structure provided by the invention reduces its vertical sectional area gradually, can maintain flow velocity constant, so static energy also remains unchanged, makes the liquid outlet quantity in liquid distribution hole 1 identical, to realize the uniform object of cloth liquid.
Compared with prior art, the invention has the beneficial effects as follows: to amass to maintain flow velocity constant by changing pipeline section, thereby it is constant to maintain the static energy of liquid, meets bernoulli equation principle, solves the congenital deficiency of liquid-distribution property from mechanism; The present invention can be used to manufacture feeder, distributor and the distributor of chemical tower, can be widely used in the industrial circles such as chemical industry, petrochemical industry, ethene, oil refining.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. packed tower shape tube liquid is evenly distributed a device, it is characterized in that: comprise the shape tube that horizontal direction arranges, the cross section of described shape tube is noncircular cross section; Two planes up and down, two lines or plane and the line of described shape tube are parallel to each other; Described shape tube is not changing under the prerequisite of vertical height, diminishes gradually along the area of the vertical cross-section of the flow direction shape tube of liquid; The bottom of shape tube is in the first-class identical liquid distribution hole, multiple apertures that is arranged at intervals with of same level.
2. a kind of packed tower shape tube liquid according to claim 1 is evenly distributed device, it is characterized in that described shape tube vertical cross-section be shaped as rectangle time, its upper and lower two plane keeping parallelisms, along liquid flow path direction, the sectional area that dwindles gradually the vertical cross-section of shape tube by shortening gradually distance between two vertical planes of rectangle, remains unchanged its potential energy; Described liquid distribution hole is arranged in same level.
3. a kind of packed tower shape tube liquid according to claim 1 is evenly distributed device, it is characterized in that described shape tube vertical cross-section be shaped as triangle time, the line that it is upper and lower and plane keeping parallelism, by shortening gradually the angle of two hypotenuses of triangle, the triangle area of shape tube vertical cross-section is dwindled gradually, its potential energy is remained unchanged; Described liquid distribution hole is arranged in same level.
4. a kind of packed tower shape tube liquid according to claim 1 is evenly distributed device, it is characterized in that described shape tube vertical cross-section be shaped as rhombus time, the line keeping parallelism at the two ends up and down of the rhombus of its vertical cross-section, keep its vertical height inconvenience, its potential energy is remained unchanged, by changing gradually the relative distance of rhombus both sides hypotenuse, the rhombus area of shape tube vertical cross-section is dwindled gradually; Described liquid distribution hole is arranged in same level.
5. a kind of packed tower shape tube liquid according to claim 1 is evenly distributed device, it is characterized in that being shaped as when trapezoidal of vertical cross-section of described shape tube, and trapezoidal is structure up-narrow and down-wide or wide at the top and narrow at the bottom, need make upper and lower two plane keeping parallelisms; By changing the relative distance between two trapezoidal sides, the trapezoidal area of shape tube vertical cross-section is dwindled gradually, its potential energy is remained unchanged; Described liquid distribution hole is arranged in same level, constant to ensure that drop passes through the flow velocity in liquid distribution hole.
6. be evenly distributed device according to a kind of packed tower shape tube liquid one of claim 1-5 Suo Shu, the inwall angle of cut place that it is characterized in that described shape tube is that arc structure connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067826.XA CN103816853A (en) | 2014-02-27 | 2014-02-27 | Special-pipe liquid even-distribution apparatus for packed tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067826.XA CN103816853A (en) | 2014-02-27 | 2014-02-27 | Special-pipe liquid even-distribution apparatus for packed tower |
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| CN103816853A true CN103816853A (en) | 2014-05-28 |
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| CN201410067826.XA Pending CN103816853A (en) | 2014-02-27 | 2014-02-27 | Special-pipe liquid even-distribution apparatus for packed tower |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068971A (en) * | 1991-07-26 | 1993-02-17 | 巴布考克和威尔科斯公司 | The single spray level that is used for FGD system |
| US6007604A (en) * | 1997-08-28 | 1999-12-28 | Lurgi Lentjes Bischoff Gmbh | Nozzle assembly for a scrubbing column |
| CN103446852A (en) * | 2013-08-25 | 2013-12-18 | 天津全达科技有限公司 | Radiation conical tube type liquid distributor |
| CN203725156U (en) * | 2014-02-27 | 2014-07-23 | 天津市天大津康化工设备有限公司 | Specially-shaped pipe liquid equal distribution device for packed tower |
-
2014
- 2014-02-27 CN CN201410067826.XA patent/CN103816853A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068971A (en) * | 1991-07-26 | 1993-02-17 | 巴布考克和威尔科斯公司 | The single spray level that is used for FGD system |
| US6007604A (en) * | 1997-08-28 | 1999-12-28 | Lurgi Lentjes Bischoff Gmbh | Nozzle assembly for a scrubbing column |
| CN103446852A (en) * | 2013-08-25 | 2013-12-18 | 天津全达科技有限公司 | Radiation conical tube type liquid distributor |
| CN203725156U (en) * | 2014-02-27 | 2014-07-23 | 天津市天大津康化工设备有限公司 | Specially-shaped pipe liquid equal distribution device for packed tower |
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Application publication date: 20140528 |
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