CN105201870B - A kind of centrifugal pump of preposition rotational flow type gas-liquid separater - Google Patents
A kind of centrifugal pump of preposition rotational flow type gas-liquid separater Download PDFInfo
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- CN105201870B CN105201870B CN201510585659.2A CN201510585659A CN105201870B CN 105201870 B CN105201870 B CN 105201870B CN 201510585659 A CN201510585659 A CN 201510585659A CN 105201870 B CN105201870 B CN 105201870B
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- centrifugal pump
- whirl cylinder
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Abstract
The invention provides a kind of centrifugal pump of preposition rotational flow type gas-liquid separater, including：Whirl cylinder, including be surrounded by the barrel of tubular and close the end cap of one end, the other end of whirl cylinder is opened；Feed pipe, it is tangentially connected close to the barrel of end cap with the whirl cylinder；Exhaust tube, on the end cap of the whirl cylinder；Centrifugal pump, including the spiral case with axial entrance and tangentially exported, the drive shaft of impeller and impeller in spiral case；The open end connection of the axial entrance and whirl cylinder；The present invention combines gas-liquid cyclonic separation and centrifugal pump, entirety realizes gas-liquid separation and fluid conveys two kinds of functions, gas is separated before impeller region is entered, the blocking of pump intake is not easily caused, gas is not easy to be taken away by impeller, deaeration capability is stronger, is centrally formed the separation that low-pressure area is also beneficial to dissolve gas in a liquid in whirl cylinder, further improves gas-liquid separation effect.
Description
Technical field
The present invention relates to gas-liquid separation technical field, more particularly to a kind of centrifugal pump of preposition rotational flow type gas-liquid separater.
Background technology
In the food industry, fruit drink can be mixed into more air, including free gas during squeezing the juice and stirring
The gas dissolved in bubble and liquid.In production, it is often necessary to remove these gases in liquid, to prevent fruit juice from aoxidizing, prolong
Long storage period.
Recent domestic scholar has carried out widely studied for gas-liquid separation operation, but all concentrates on Oil-gas Separation mostly
Field, the fluid-mixing research for water and air is less, and especially for the air being dissolved in the water, separating difficulty is larger.
During Oil-gas Separation, cylindrical gas-liquid cyclone separator has a wide range of applications, the rotation that cyclone separator passes through fluid
Centrifugal action realizes the separation of gas-liquid two-phase.
Such as notification number discloses a kind of gas-liquid segregating unit for CN101940860A Chinese patent literature, mainly by following
Part is constituted：Rotary drum and distributing device are provided with casing, rotary drum is connected by transmission device with motor；Casing is provided with liquor inlet
With liquid outlet, air inlet and gas vent；Described liquor inlet one end is led to outside housing, other end connection distributing device,
Packing layer is located in rotary drum, is fixedly connected by separation net with rotary drum；Described gas vent lower end is stretched into inside seperator, peace
Between packing layer and cloth tube, the gas after separation is drawn；It is provided between casing and rotary drum on gas distribution pipe, gas distribution pipe
It is covered with hole, gas distribution pipe is connected with air inlet；Described liquor inlet and gas vent is located at the top of casing, described liquid discharge
Mouth and air inlet are located at the bottom of casing；Foregoing invention with a high speed rotation produce centrifugal force, hypergravity, make material liquid with it is inverse
To the air contact of entrance, air-liquid two-phase, in the presence of gas is suppressed for the centrifugal force of liquid and the external world from rotary drum,
The conductance body in material liquid is separated with liquid, reach the purpose for improving effect.
In another example Authorization Notice No. discloses a kind of cylindrical gas-liquid eddy flow for CN 201381813Y Chinese patent literature
Separator, to reduce cost, mitigate weight.It has pipe column type separating pipe, has gas-liquid mixed on pipe column type separating pipe top
Thing inlet tube and gas-liquid mixture inlet tube enter pipe column type separating pipe by inclination tangential inlet, and gas vent is positioned at pipe column type point
From pipe top, liquid outlet is located at pipe column type separating pipe bottom.Above-mentioned cylindrical gas-liquid cyclone separator is a kind of with inclination
Tangential inlet and gas, the vertical tube of liquid outlet, air-liquid two-phase laminated flow is realized by eddy flow centrifugal force, with traditional gravity
Formula separator is compared, and is had the advantages that compact conformation, lightweight, saving cost, is that instead of the new of traditional positive displacement separator
Separator.
The above two gas-liquid separation makes the gas and liquid point in material liquid with the centrifugal force that rotation is produced at a high speed
From, although it can efficiently separate free gas in liquid, but the dissolved gas in more difficult separation liquid, and it also requires individually
Fluid delivery system be connected with liquid outlet, using complex.
The content of the invention
The invention provides a kind of centrifugal pump of preposition rotational flow type gas-liquid separater, while completion gas-liquid separation and fluid are defeated
Send, compact conformation and gas-liquid separation efficiency high.
A kind of centrifugal pump of preposition rotational flow type gas-liquid separater, including feed pipe, whirl cylinder, exhaust tube and centrifugal pump, institute
The feed pipe and the barrel of whirl cylinder stated are tangentially connected, and described whirl cylinder is connected close to one end of feed pipe with exhaust tube, separately
The axial entrance connection of one end and centrifugal pump.
The centrifugal pump is included with axial entrance and the spiral case tangentially exported, impeller and impeller in spiral case
Drive shaft.
In the use of the present invention, gas-liquid mixture fluid enters feed pipe by exterior line, by the guiding of feed pipe, tangentially
Into in whirl cylinder, fluid formation at a high speed rotation pendular ring, liquid in whirl cylinder with axle from the track of helix to centrifugal pump
Move that (fluid can realize that such as vertically-arranged whirl cylinder can also to a direction movement by the gravity of fluid itself to entrance
It is to set feed pipe and axis relative tilt to realize), free gas in a liquid is realized point under the influence of centrifugal force
From.
In order to improve gas-liquid separation effect, it is preferred that described exhaust tube is connected with vavuum pump, in high-speed liquid eddy flow and
Exhaust tube connection vavuum pump collective effect under, whirl cylinder center produce negative pressure, using the solubility of gas in a liquid with
The characteristics of pressure is reduced and reduced, the gas of dissolving in a liquid is also separated, and gas is excluded by exhaust tube, after degassing
Liquid cyclone must enter in spiral case, be transferred out after being pressurizeed through impeller, the fluid of eddy flow, which can be rapidly entered in spiral case, to be output,
Liquid transfer efficiency is greatly improved.
The axial entrance of the centrifugal pump is effective working region of impeller, and fluid keeps the form of eddy flow to enter spiral case
It is discharged immediately, so as to reach the purpose for improving liquid transfer efficiency.
In the case where flow is certain, the thickness of the pendular ring of formation is outside the pressure and exhaust tube for entering the fluid of whirl cylinder
The pressure of the vavuum pump connect is determined, the pressure of the fluid of whirl cylinder is adjusted into for convenience, it is preferred that pacified in the feed pipe
Equipped with replaceable nozzle.The setting of nozzle can further increase the pressure of fluid, and can change difference as needed
The nozzle of size, the inlet size of the nozzle is constant, and outlet size can have multiple choices, to meet the use under different flow
Demand.
Install and change for convenience nozzle, it is preferred that the import of described nozzle turns up to form retainer ring, and described enters
The inwall of expects pipe, which is provided with, supports the retainer ring to position the ring-shaped step of nozzle.The mode of ring-shaped step formation can be two sections
The different body of internal diameter is formed by connecting, and the feed pipe includes：Thin-walled rectangular tube and below the thin-walled rectangular tube and therewith phase
Heavy wall rectangular tube even, the other end of heavy wall rectangular tube is connected with whirl cylinder, inside nozzle insertion heavy wall rectangular tube, depending nozzle
The retainer ring on top is fixed in feed pipe.
In order that fluid can be as far as possible with whirl cylinder inwall it is tangent, it is preferred that the feed pipe includes and exterior tube
The variable cross-section section of road connection and the rectangle communicating pipe for being connected to install nozzle with variable cross-section section, the import of the variable cross-section section
For circle, export as rectangle, the bore of the variable cross-section section is gradually reduced along feed liquor direction.Rectangle communicating pipe is compared to circle
Pipe, it has at least one side completely tangent with barrel, and fluid can be made to recline as far as possible the inwall of whirl cylinder, eddy flow is improved and imitate
Really.
It is further preferred that the side of described rectangle communicating pipe and the whirl cylinder barrel are tangent, the rectangle
The long side of the cross section of communicating pipe falls on the side, and the long side a and broadside b of the rectangle communicating pipe meet b<a<3b.It is above-mentioned
Ratio setting, not only ensure that liquid inlet volume but also can ensure that fluid tangentially enters whirl cylinder as much as possible.
In order that the fluid that nozzle sprays can recline, whirl cylinder inwall tangentially enters, it is preferred that the horizontal stroke of described nozzle
Rectangular cross-section, the bore of nozzle is gradually reduced, the rectangle communicating pipe and the tangent side of the whirl cylinder barrel with it is described
One side of nozzle reclines.Nozzle is subsequently entered, jet expansion bore is less than nozzle entrance, and fluid is carried by flow velocity after nozzle
Height, cylinder interior is flowed into along cylindrical barrel direction.
In order to not destroy the air flow method of eddy flow, it is preferred that one end that the whirl cylinder is connected with exhaust tube is provided with end
Lid, the port of export of the exhaust tube is fixed on the center of end cap.
It is bigger that the exhaust tube is set, then pumping effect is better, but exhaust tube is crossed conference and caused into vavuum pump
Liquid increases, therefore, in order to take into account efficiency, it is preferred that the internal diameter of the whirl cylinder is D, and the internal diameter of the exhaust tube is d, full
Sufficient 0.1D<d<0.2D.
In order to reduce the volume of the present invention, while ensureing the efficiency of gas-liquid separation, it is preferred that the feed pipe is in whirl cylinder
On the axial effective length of the tangential axial entrance (effective working region of impeller) for exporting to centrifugal pump be L, the eddy flow
The internal diameter of cylinder is D, meets D<L<2D.
It is preferred that, the blade of the impeller is 0.3~1mm with the gap of spiral case inwall, and the impeller disk of the impeller is remote
The side of whirl cylinder is 0.3~1mm with the gap of spiral case end face, and the piece number of the blade is 4~10, and said structure can be reduced
Headloss, improves impeller operating efficiency.
The impeller includes the impeller disk fixed with drive shaft, and the impeller disk is provided with blade, blade towards the side of whirl cylinder
Effect be by liquid pressing and transfer out that enclosed vane efficiency is higher, hacking impeller be convenient for cleaning, leaf of the invention
Piece is open type or semi-open type.
The whirl cylinder is connected with the axial entrance on spiral case by the screw thread loose joint with inclined-plane, is easy to dismounting.The rotation
The internal diameter of flow cartridge is equal to the diameter of axial entrance.Whirl cylinder is being provided with opening with feed pipe connecting place, and one end of whirl cylinder is with putting down
Lid connection, it is another to be terminated with loose joint flanges.
Beneficial effects of the present invention:
The present invention combines gas-liquid cyclonic separation and centrifugal pump, integrally realizes gas-liquid separation and fluid conveying two
Function is planted, gas is separated before impeller region is entered, and the blocking of pump intake is not easily caused, gas is not easy to by impeller
Take away, deaeration capability is stronger, be centrally formed the separation that low-pressure area is also beneficial to dissolve gas in a liquid in whirl cylinder, further carry
High gas-liquid separation effect.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of the centrifugal pump of the preposition rotational flow type gas-liquid separater of the present invention.
Fig. 2 is the part isometric structural representation of the centrifugal pump of the preposition rotational flow type gas-liquid separater of the present invention.
Fig. 3 is Fig. 2 horizontal schematic cross-sectional view.
Fig. 4 is the dimensional structure diagram of the nozzle of the centrifugal pump of the preposition rotational flow type gas-liquid separater of the present invention.
Fig. 5 is the dimensional structure diagram of the impeller of the centrifugal pump of the preposition rotational flow type gas-liquid separater of the present invention.
Embodiment
As shown in Fig. 1~5, the centrifugal pump of the preposition rotational flow type gas-liquid separater of the present embodiment includes：Be connected with each other from
Heart pump and whirl cylinder 3.
Centrifugal pump includes the spiral case 8 with axial entrance and built-in pump shaft 4, is fixedly connected with pump shaft 4 for discharging spiral case 8
The impeller 14 of interior liquid, the top of spiral case 8 is provided with outlet 9 (tangential outlet), and the end cap of spiral case 8 is link 15, the direction of impeller 14
The side of whirl cylinder 3 is provided with blade 7, and the gap of blade 7 and the inwall of spiral case 8 is 0.5mm, side of the impeller 14 away from whirl cylinder 3 with
The gap of link 15 is 0.5mm, and blade 7 is to take 6 in open type blade, the present embodiment.
Whirl cylinder 3 includes end cap 1 and barrel 2, and the opening of whirl cylinder 3 is terminated with screw thread movable connecting piece 1, the axial direction of spiral case 8
Entrance is connected to screw thread movable connecting piece 26, is fixed and docked by threaded for union 5 between whirl cylinder 3 and spiral case 8.
Exhaust tube 10 is fixed with end cap 1, exhaust tube 10 is straight tube, and one end passes end cap 1, and the other end is connected by end cap 1
Inside logical whirl cylinder 3, the internal diameter of exhaust tube 10 is d, and the internal diameter of whirl cylinder 3 is D, meets d=0.15D.
End cap 1 is L to the effective length of the porch of blade 7, and L is the path axial length of fluid eddy flow, and L gets over maelstrom
Flow it is longer, but if length is excessive, flow rate of water flow reduction can make fluid be unable to maintain that the state of eddy flow, no longer enter again
Row cyclonic separation, therefore, in the present embodiment, meets L=1.5D.
Whirl cylinder 3 is provided with a tangential inlet, and tangential inlet is connected with feed pipe 12.Feed pipe is by varying cross-section duct 16 and rectangle
Pipe 17 is constituted, and end section is circle, lower end rectangular cross-section on varying cross-section duct 16.Rectangular tube 17 is made up of two sections, and top is
Thin-walled rectangular tube 18, bottom is heavy wall rectangular tube 21.Thin-walled rectangular tube 18 and heavy wall rectangular tube 21 form Step-edge Junction in junction
Structure, nozzle 11 is made up of retainer ring 19 and spout 20.Nozzle 11 is fixed on thin-walled rectangular tube 18 and heavy wall square by retainer ring 19
On ledge structure between shape pipe 21.
The inner runner section of nozzle 11 is rectangle, and entrance section area is larger, is gradually reduced toward Way out area of section.
The entrance section size constancy of nozzle 11, outlet size can have multiple choices, to meet the use demand under different flow.
During the present embodiment real work, the external vavuum pump of exhaust tube 10.Liquid is entered by exterior line via feed pipe 12
Enter, flow through flow velocity increase after nozzle 11, fluid high-speed is tangentially flowed into inside whirl cylinder 3, forms the pendular ring of rotation at a high speed, impeller 14
With the coaxial linkage of pump shaft 4, rotated at a high speed under motor driving, the thickness of pendular ring, stream are can adjust by fluid flow and vavuum pump
The gas that body dissociates and dissolved under the collective effect of whirl cylinder and external vavuum pump, in liquid is separated, and passes through pumping
Pipe 10 is excluded, the liquid after degassing then with eddy flow form enter in spiral case 8, impeller 14 in spiral case 8 drives liquid to rotate, and gives
Give fluid pressure and discharged by the outlet 9 of spiral case 8.
Claims (7)
1. a kind of centrifugal pump of preposition rotational flow type gas-liquid separater, including feed pipe, whirl cylinder, exhaust tube and centrifugal pump, it is special
Levy and be, described feed pipe and the barrel of whirl cylinder are tangentially connected, described whirl cylinder is close to one end of feed pipe and pumping
Pipe is connected, and the axial entrance of the other end and centrifugal pump is connected；Replaceable nozzle is installed in the feed pipe；
The feed pipe includes the variable cross-section section being connected with exterior line and is connected to install the square of nozzle with variable cross-section section
Shape communicating pipe, the import of variable cross-section section is circle, is exported as rectangle, the bore of the variable cross-section section along feed liquor direction gradually
Reduce；
The side of described rectangle communicating pipe and the whirl cylinder barrel are tangent, and the cross section of described nozzle is rectangle,
The bore of nozzle is gradually reduced, the rectangle communicating pipe and the tangent side of the whirl cylinder barrel and a side of the nozzle
Face reclines.
2. the centrifugal pump of preposition rotational flow type gas-liquid separater as claimed in claim 1, it is characterised in that described nozzle enters
Mouth turns up to form retainer ring, and the inwall of described feed pipe, which is provided with, supports the retainer ring to position the ring-shaped step of nozzle.
3. the centrifugal pump of preposition rotational flow type gas-liquid separater as claimed in claim 2, it is characterised in that the rectangle communicating pipe
The long side of cross section fall on the side, the long side a and broadside b of the rectangle communicating pipe meet b<a<3b.
4. the centrifugal pump of preposition rotational flow type gas-liquid separater as claimed in claim 1, it is characterised in that the whirl cylinder connection
The one end for having exhaust tube is provided with end cap, and the port of export of the exhaust tube is fixed on the center of end cap.
5. the centrifugal pump of preposition rotational flow type gas-liquid separater as claimed in claim 1, it is characterised in that described exhaust tube connects
It is connected to vavuum pump.
6. the centrifugal pump of preposition rotational flow type gas-liquid separater as claimed in claim 1, it is characterised in that the feed pipe is in rotation
The axial effective length of the tangential axial entrance for exporting to centrifugal pump in flow cartridge is L, and the internal diameter of the whirl cylinder is D, meets D
<L<2D。
7. the centrifugal pump of preposition rotational flow type gas-liquid separater as claimed in claim 1, it is characterised in that the centrifugal pump includes
The spiral case with axial entrance and tangentially exported, the drive shaft of impeller and impeller in spiral case, the leaf of the impeller
The gap of piece and spiral case inwall is 0.3~1mm, side and the gap of spiral case end face of the impeller disk away from whirl cylinder of the impeller
For 0.3~1mm, the piece number of the blade is 4~10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510585659.2A CN105201870B (en) | 2015-09-15 | 2015-09-15 | A kind of centrifugal pump of preposition rotational flow type gas-liquid separater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510585659.2A CN105201870B (en) | 2015-09-15 | 2015-09-15 | A kind of centrifugal pump of preposition rotational flow type gas-liquid separater |
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| CN105201870A CN105201870A (en) | 2015-12-30 |
| CN105201870B true CN105201870B (en) | 2017-10-17 |
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| CN105561717B (en) * | 2015-10-16 | 2017-09-29 | 珠海精润石化有限公司 | Centrifugal desulphurization system gas-liquid separator |
| CN109231331B (en) * | 2018-09-20 | 2021-10-15 | 同济大学 | CO removal of sludge digestion biogas slurry2Special deamination device and process |
| CN114074969A (en) * | 2020-08-07 | 2022-02-22 | 中国石油天然气集团有限公司 | Dehydrogenation device, dehydrogenation method, and wastewater treatment system |
| CN113153696B (en) * | 2021-04-15 | 2023-01-03 | 鑫磊压缩机股份有限公司 | Oil-gas separation cylinder for axial fine filtration |
| CN115040900B (en) * | 2022-05-06 | 2024-01-26 | 华东理工大学 | Device and method for strengthening micro-bubble separation by using rotational flow centrifugal force field |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2403484Y (en) * | 1999-11-29 | 2000-11-01 | 冶金工业部安全环保研究院 | Wen's dust-removing and desulfurizing washer |
| FI20041480A0 (en) * | 2004-11-17 | 2004-11-17 | Pom Technology Oy Ab | Exhaust gas centrifugal device with sensor |
| CN201720043U (en) * | 2010-06-24 | 2011-01-26 | 上海工程化学设计院有限公司 | Feeding spray nozzle for particle containing fluid |
| CN102580408B (en) * | 2012-03-20 | 2014-03-26 | 杨东进 | Active centrifugal gas-liquid separation device |
| CN103423205B (en) * | 2013-08-19 | 2016-03-09 | 浙江大学 | A kind of centrifugal degassed delivery pump |
| CN203874936U (en) * | 2014-04-24 | 2014-10-15 | 杭州杭真真空工程技术有限公司 | Liquid jet supercharger |
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