CN104847669B - Alkali device is unloaded in a kind of zero leakage - Google Patents
Alkali device is unloaded in a kind of zero leakage Download PDFInfo
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- CN104847669B CN104847669B CN201510310650.0A CN201510310650A CN104847669B CN 104847669 B CN104847669 B CN 104847669B CN 201510310650 A CN201510310650 A CN 201510310650A CN 104847669 B CN104847669 B CN 104847669B
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- impeller
- alkali
- casing
- main shaft
- belt pulley
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Abstract
The present invention discloses a kind of zero leakage and unloads alkali device, including frame, the apparatus main body that is located in the frame and drive mechanism；The apparatus main body includes casing, impeller and main shaft；The casing is in volute type, and its side and spiral end are respectively equipped with into alkali pipeline and alkali outlet pipe road；Main shaft one end is connected with drive mechanism, and the other end stretches into the casing along chassis axial, and impeller is installed in casing and axle is located on the main shaft other end, is rotated by drive mechanism via main shaft impeller.Compared with prior art, the present invention has the advantages that zero leakage, efficient, environmental protection, noresidue solution, the reduction wasting of resources and environmental pollution, has huge economic value and application value, has a extensive future, is the optimal selection of major industry transporting chemical solution.
Description
Technical field
Alkali equipment is unloaded the present invention relates to one kind, in particular to alkali device is unloaded in a kind of zero leakage.
Background technology
At present, the transportation problem of corrosivity alkali lye is always industrial problem, 30% commodity liquid caustic soda（The NaOH aqueous solution）
With severe corrosive, the tank car transported to it substantially not drive（Pump）, typically centrifugal pump must be connected in addition to be unloaded.
When dismantling pipeline after unloading, the Liquid Residue in pipeline can flow to ground, need to rinse in time, and flushing water can also be led
Cause pollution；Centrifugal pump easily leaks in itself simultaneously, influences safety so as to cause splash.Further, centrifugal pump before activation must
Whole device must be allowed to be full of water（Alkali lye）It could work, but alkali has severe corrosive, centrifugal pump is adhered to by alkali, and this greatly contracts
The short life-span of centrifugal pump.Thus in industrial growing today, it is urgently that invention, which manufactures efficient zero leakage and unloads alkali equipment,
Solve the problems, such as.
The content of the invention
It is an object of the invention to provide a kind of zero leakage to unload alkali device, overcomes the prior art problem, unloads in alkali and have
There is zero leakage, efficient, environmentally friendly, safe.
In order to reach above-mentioned purpose, solution of the invention is：
Alkali device is unloaded in a kind of zero leakage, including frame, the apparatus main body that is located in the frame and drive mechanism；Device master
Body includes casing, impeller and main shaft；The casing is in volute type, and its side and spiral end are respectively equipped with into alkali pipeline and gone out
Alkali pipeline；Main shaft one end is connected with drive mechanism, and the other end stretches into the casing along chassis axial, and impeller is installed in casing
And axle is located on the main shaft other end, rotated by drive mechanism via main shaft impeller.
The impeller includes big impeller and small impeller, and the big equal axle of impeller and small impeller is located on the other end of main shaft,
And the big impeller and small impeller are mutually set in inside and outside nested mode.
The big impeller and small impeller are in that inside and outside dislocation type is nested, wherein the relatively large impeller of small impeller it is past enter alkali pipeline side
Protrusion dislocation.
The big impeller uses backward inclined type of impeller, and small impeller uses radial bladed impeller.
The side of the casing is opening-like, and it is covered by a closure, it is described enter alkali pipeline be located on the closure.
The closure is in horn-like, and the sealing of its flared end is covered on the lateral opening of casing, and its necking end forms institute
State into alkali pipeline.
A disc is installed with the frame, the disc is set for casing lock.
The main shaft is coordinated by bearing and bearing block to be rotationally installed in frame.
The drive mechanism includes motor, the first belt pulley, the second belt pulley and belt, and the first Pulley shaft is located at electricity
On the output shaft of machine, the second Pulley shaft is located on main shaft, and belt is around being located between the first belt pulley and the second belt pulley.
The wheel footpath of first belt pulley is more than the wheel footpath of the second belt pulley, so as to be respectively structured as big belt pulley and cuticle
Belt wheel.
After such scheme, the present invention is relative to the beneficial effect of prior art：It is tight that the present invention is unloaded into alkali device
It need to only switch on power by tank car, during work, drive the impeller in casing constantly to rotate by drive mechanism, at a high speed the leaf of rotation
Wheel makes the air of impeller central do acceleration accelerated motion in rising trend, forms pressure difference, produces very powerful inhalation power,
Powerful revolving force then is produced again, the alkali outlet pipe road for being connected to store up alkali tank will be transported to by entering the alkali of alkali pipeline inflow device
In.The continuous revolving force caused by impeller of alkali lye（Air-flow）Suction extrudes, and forms continuous work, is so achieved that alkali lye
Continuative transport.Because the speed of air-flow is fast, pressure is big, the alkali of inflow impeller either in pipeline caused frictional force much without
Method resists the high wind-force suppressed, so the possibility for being attached to inside greatly reduces.When the alkali lye in tank car is unloaded end, pipe
High-strength pressure gas stream in road transports residual alkali lye to storage alkali tank ensure that zero leakage with this.Compared with prior art, present invention tool
There is the advantages that zero leakage, efficient, environmental protection, noresidue solution, the reduction wasting of resources and environmental pollution, be major industry transporting chemical
The optimal selection of solution.
Brief description of the drawings
Fig. 1 is the front view that alkali device is unloaded in zero leakage of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 right view；
Fig. 4 is the axis sectional view in the vertical paper direction of apparatus main body part in Fig. 1；
Fig. 5 is the internal structure schematic diagram for the apparatus main body that the present invention unloads alkali device；
Fig. 6 is the schematic diagram that fluid moves in impeller channel.
Label declaration
The apparatus main body 2 of frame 1
The closure 210 of casing 21
Enter the alkali outlet pipe road 212 of alkali pipeline 211
The bearing block 221 of main shaft 22
The big impeller 231 of impeller 23
The drive mechanism 3 of small impeller 232
The belt pulley 32 of motor 31 first
The belt 34 of second belt pulley 33.
Embodiment
This case is described in further detail with reference to the accompanying drawings and detailed description.
This case is related to a kind of zero leakage and unloads alkali device, as Figure 1-5, mainly includes frame 1, apparatus main body 2 and driving
Mechanism 3.Apparatus main body 2 and drive mechanism 3 are each provided in frame 1.
Apparatus main body 2 mainly includes casing 21, main shaft 22 and impeller 23.Casing 21 is in volute type（The rotation side of spiral case
To the direction for determining alkali stream）, its side and spiral end are respectively equipped with into alkali pipeline 211 and alkali outlet pipe road 212.Main shaft 22
Horizontally disposed, its one end is connected with drive mechanism 3, and the other end stretches into the casing 21 along chassis axial.The spiral of casing 21
Place plane is radial direction, radially perpendicular for chassis axial with this.Impeller 23 is installed in casing 21, and the impeller axle is set
On the other end of main shaft 22.In this, driven by drive mechanism 3, driven via main shaft 22, you can final impeller 23 is at a high speed
Rotation.
When the present invention unloads the work of alkali device, twisting resistance is driven into main shaft 22 by drive mechanism 3, and impeller 23 is at a high speed
Rotation, the air at the center of impeller 23 is done acceleration accelerated motion in rising trend, form that pressure is big, fireballing strong gas
Stream, with this by the alkali lye suction apparatus by entering alkali pipeline 211, and rapidly entered along volute type casing 21 and be connected to store up alkali tank
Alkali outlet pipe road 212 in.Specifically, following three process can be subdivided into by unloading alkali device operation principle：
Process one：Rotated at a high speed by the impeller 23 of drive mechanism 3, when impeller 23 rotates at a high speed, play air flow
Come, and drive gas to accelerate, produce airflow, when air velocity accelerates, the air pressure in device will be much smaller than a standard
Atmospheric pressure, make to pass through the alkali lye into alkali pipeline 211 from tank car outflow, be inhaled into from axial direction in casing 21；
Process two：After alkali lye enters casing 21, impeller 23 makes the velocity attitude of alkali lye by axially becoming radially, gas and changing
Flow direction causes to slow down, and this decelerating effect converts kinetic energy into pressure energy, promotes the alkali lye into device strong
Air-flow is depressed into alkali outlet pipe road 212；
Process three：When unload alkali work arrive coda when, the rotation of impeller 23 also changes the flow direction of air-flow, is converted into kinetic energy
Potential energy（Pressure）, by residual alkali lye output.
The present invention proposes further optimization design to impeller 23, and as illustrated in figures 4-5, impeller 23 includes the big He of impeller 231
Small impeller 232.The big 232 equal axle of impeller 231 and small impeller is located on the other end of main shaft 22, especially the big He of impeller 231
Small impeller 232 is mutually set in inside and outside nested mode.Two impellers when device works（Big impeller 231 and small impeller 232）All
Rotate at a high speed, allow air high-speed motion to form air-flow.Because big impeller 231 is first to be contacted with alkali, alkali is attached to big impeller 231
At that moment, power attenuation can be caused, in this by suitably setting up small impeller 232, small impeller 232 and big impeller 231 are coaxial
High-speed rotation, axial suction is enhanced, shorten the time of air-flow acceleration, improve and unload alkali efficiency.
Further, the big impeller 231 is in that inside and outside dislocation type is nested with small impeller 232, wherein 232 relatively large leaf of small impeller
Wheel 321 misplaces toward the side of alkali pipeline 211 protrusion is entered（Referring to Fig. 4）.The structure design is more conducive to bilobed wheel, particularly small impeller and sent out
Maximum effect is waved, makes to unload alkali efficiency optimization.
Further, the big impeller 231 preferably uses backward inclined type of impeller, small impeller 232 uses radial bladed impeller.Specific one
Embodiment, big its outside diameter of impeller 231 200mm, the interior mm of circular diameter 150, the mm of shaft hole diameter 28；Big impeller 231 has 27
Blade, the blade are in semicircle shape, are laid using swept-back, high 85mm.Its outside diameter 110mm of small impeller 232, interior circular diameter
70mm, shaft hole diameter 28mm；There are 20 blades, the blade is in arcuation, is laid using radial, high 78mm.Table 1 below provides difference
The work characteristics of impeller compares, and in the different type design of this described big impeller 231 of setting and small impeller 232, makes alkali lye fluid
Motion in impeller channel excellent can unload alkali effect as far as possible close to required perfect condition in favor of realizing.Given in Fig. 6
Go out the schematic diagram of motion of the fluid in impeller channel, wherein indicating 1 representative pressure face, sign 2 represents suction surface.
Table 1：The work characteristics of different impellers compares
| Compare content | Palintrope | Radially | It is antecurvature |
| Theoretical total head | It is small | In | Greatly |
| Degree of reaction | Greatly | In | It is small |
| Leaf road drag losses | It is small | In | Greatly |
| The situation of change that theoretical total head increases with flow | Reduce | It is constant | Rise |
| Anti- vane dust deposition, abrasion | In | It is excellent | Difference |
In addition, force analysis when being worked for impeller channel, the present invention gives the analysis of formula computational theory, as follows：
The fluid micellar quality that width is b, thickness is dr is taken to be in impeller channel at any radius r：
dm=ρrdnψdrb
The density of ρ in formula --- alkali lye, kg/m3.
When impeller rotates, alkali lye micelle is respectively that p and p+dp. mass is dm in the surface pressing that radially inner and outer side is subject to
Alkali lye with impeller using centrifugal force dF caused by ω rotates as：
dF=dmrω²=prdψdrbrω²
The area that dF is acted on is：
dA=(r+dr)dψb≈rdψb
Because the alkali lye in impeller is in relative static conditions, pretending the gross pressure dP used in micelle outer surface should be equal to
DF, i.e.,
dP=dpdA=dprdψb=dF=ρrdψdrbrω²
The radial direction pressure difference of micelle can be obtained after arrangement：
dp=ρrω²dr
Preferably, for the structure design of casing 21, the present invention provides preferred embodiment, and the side of casing 21 is in opening
Shape, it covers sealing by a closure 210（Joint place can strengthen sealing by setting up rubber ring）, then alkali pipeline is entered
211 are correspondingly arranged on the closure 210.The design of closure 210 is beneficial to the installation of impeller 23 and enters the setting of alkali pipeline 211.
Further, the closure 210 is in horn-like that the sealing of its flared end is covered on the lateral opening of casing 21, its necking end structure
Into entering alkali pipeline 211.It is described enter the end of alkali pipeline 211 the horn-like structure design, make alkali lye being capable of timely snail after being inhaled into
It is rotating to scatter, avoid that turbulent flow occurs, quickly entered spiral track by stream pressure beneficial to alkali lye and be efficiently sent to out alkali
Pipeline 212.
Preferably, in order to position assembling in frame 1 beneficial to casing 21, in being installed with a disc in frame 1（In figure not
Indicate）, casing 21 is coordinated using screw bolt and nut to be compactly locked on disc.
One fixed form of the main shaft 22, which is that it is coordinated by bearing and bearing block 221, is rotationally installed in frame 1
On.
Preferably, the present invention provides a preferred embodiment of drive mechanism 3, is driven using belt mode.That is drive mechanism 3
Include motor 31, the first belt pulley 32, the second belt pulley 33 and belt 34.Motor 31 is specifically as follows model YCL 90L-2
Motor（Its power is 2.2kW, rotating speed 2900r/min）, it is fixed among frame 1 by four bolts.First belt pulley 32
Axle is located on the output shaft of motor 31（Key connection is used between the two）, the axle of the second belt pulley 33 is located on main shaft 22, and belt 34 passes
Dynamicly around being located between the first belt pulley 32 and the second belt pulley 33.Second belt pulley 33 uses interference fit simultaneously with main shaft 22
And by key connection, it can thus produce enough adhesions and make it to bear to rotate at a high speed and transmit caused by prime mover to turn round
Square.Further, the wheel footpath of first belt pulley 32 is more than the wheel footpath of the second belt pulley 33, so as to be respectively structured as big belt pulley
And small belt pulley.In specific embodiment, the wheel footpath of big belt pulley is twice of small belt pulley wheel footpath, then the gearratio of the two is equal to
1:2。
To sum up, alkali device is unloaded in zero leakage of the present invention, has some following innovative characteristics：
1）Alkali lye in pipeline and residual alkali lye are delivered to storage alkali tank by device using the air-flow of high pressure, can be effectively real
Existing zero leakage, both having avoided Liquid Residue and flowing to ground causes to pollute, and and can allows utilization of resources；
2）It is different from traditional centrifugal pump, the present apparatus by improve, substantially increase reliability, security, unload alkali coda,
High pressure draught caused by impeller, the alkali lye remained in a device is completely exhausted out, can effectively reduce device by liquid corrosion, punching
Brush, abrasion, cause equipment failure；
3）Mechanical efficiency is higher than original centrifugal pump, greatly reduces power consumption, energy-conserving and environment-protective；
4）Under the drive that one times of belt pulley is differed in two diameters, the rotating speed of main shaft doubles, and realizes two coaxially
Impeller rotates at a high speed.
So what the present invention designed zero unloads leakage device by as the optimal selection of major industry transporting chemical solution, manufacture
Cost, maintenance cost and administration fee are low, high financial profit；And environmental protection, noresidue solution, the wasting of resources and environmental pollution are reduced,
More meet the construction of National Environmental friendly society；Directly driven using high-speed motor, from heavy and light, power is strong, simple in construction,
It is simple to operate, various construction environments can be effectively applicable to.Have a extensive future, for example, suitable for sending water at a distance, adopt
The supercharging of the water circulations such as warm, bathroom, avoids insufficient water from causing efficiency low, lives the problems such as inconvenient；High low layer is applied also for build
The fire-fighting of the house built, hospital, hotel, office block, department store etc., living water.
The foregoing is only the preferred embodiments of the present invention, all equivalent changes done with scope of the invention as claimed and
Modification, the scope of the claims in the present invention all should be belonged to.
Claims (7)
1. alkali device is unloaded in a kind of zero leakage, it is characterised in that：Including frame, the apparatus main body being located in the frame and driving machine
Structure；The apparatus main body includes casing, impeller and main shaft；The casing is in volute type, and its side and spiral end are respectively equipped with
Enter alkali pipeline and alkali outlet pipe road；Main shaft one end is connected with drive mechanism, and the other end stretches into the casing, impeller along chassis axial
It is installed in casing and axle is located on the main shaft other end, is rotated by drive mechanism via main shaft impeller；The impeller bag
Big impeller and small impeller are included, the big equal axle of impeller and small impeller is located on the other end of main shaft, and the big impeller and leaflet
Wheel is mutually set in inside and outside nested mode；The big impeller is in that inside and outside dislocation type is nested, and wherein small impeller is relatively large with small impeller
Impeller misplaces toward alkali pipeline side protrusion is entered；Big impeller first contacts with alkali during work；The big impeller uses backward inclined type of impeller, small
Impeller uses radial bladed impeller.
2. alkali device is unloaded in a kind of zero leakage as claimed in claim 1, it is characterised in that：The side of the casing is opening-like,
It is covered by a closure, it is described enter alkali pipeline be located on the closure.
3. alkali device is unloaded in a kind of zero leakage as claimed in claim 2, it is characterised in that：The closure is in horn-like, its expansion
The sealing of mouth end is covered on the lateral opening of casing, enters alkali pipeline described in its necking end composition.
4. alkali device is unloaded in a kind of zero leakage as claimed in claim 1, it is characterised in that：A disk is installed with the frame
Part, the disc are set for casing lock.
5. alkali device is unloaded in a kind of zero leakage as claimed in claim 1, it is characterised in that：The main shaft passes through bearing and bearing block
Cooperation is rotationally installed in frame.
6. alkali device is unloaded in a kind of zero leakage as claimed in claim 1, it is characterised in that：The drive mechanism include motor,
First belt pulley, the second belt pulley and belt, the first Pulley shaft are located on the output shaft of motor, and the second Pulley shaft is located at master
On axle, belt is around being located between the first belt pulley and the second belt pulley.
7. alkali device is unloaded in a kind of zero leakage as claimed in claim 6, it is characterised in that：The wheel footpath of first belt pulley is more than
The wheel footpath of second belt pulley, so as to be respectively structured as big belt pulley and small belt pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310650.0A CN104847669B (en) | 2015-06-09 | 2015-06-09 | Alkali device is unloaded in a kind of zero leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510310650.0A CN104847669B (en) | 2015-06-09 | 2015-06-09 | Alkali device is unloaded in a kind of zero leakage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847669A CN104847669A (en) | 2015-08-19 |
| CN104847669B true CN104847669B (en) | 2017-11-24 |
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ID=53847563
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510310650.0A Expired - Fee Related CN104847669B (en) | 2015-06-09 | 2015-06-09 | Alkali device is unloaded in a kind of zero leakage |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480925B (en) * | 2015-11-11 | 2019-01-25 | 厦门理工学院 | Alkali device is unloaded in a kind of zero leakage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918841A (en) * | 1972-12-11 | 1975-11-11 | Dengyosha Mach Works | Pump impeller assembly |
| CN1048439A (en) * | 1989-06-26 | 1991-01-09 | 川波春平 | To changeing the double rotor centrifugal fluid-charger |
| CN203394773U (en) * | 2013-07-05 | 2014-01-15 | 辽宁格瑞特泵业有限公司 | Unloading type self-sucking pump |
| CN203767994U (en) * | 2013-12-02 | 2014-08-13 | 山东科源化工有限公司 | No-leakage unloading device for tank wagon |
| CN204663908U (en) * | 2015-06-09 | 2015-09-23 | 厦门理工学院 | Alkali device is unloaded in a kind of zero leakage |
-
2015
- 2015-06-09 CN CN201510310650.0A patent/CN104847669B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918841A (en) * | 1972-12-11 | 1975-11-11 | Dengyosha Mach Works | Pump impeller assembly |
| CN1048439A (en) * | 1989-06-26 | 1991-01-09 | 川波春平 | To changeing the double rotor centrifugal fluid-charger |
| CN203394773U (en) * | 2013-07-05 | 2014-01-15 | 辽宁格瑞特泵业有限公司 | Unloading type self-sucking pump |
| CN203767994U (en) * | 2013-12-02 | 2014-08-13 | 山东科源化工有限公司 | No-leakage unloading device for tank wagon |
| CN204663908U (en) * | 2015-06-09 | 2015-09-23 | 厦门理工学院 | Alkali device is unloaded in a kind of zero leakage |
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| Publication number | Publication date |
|---|---|
| CN104847669A (en) | 2015-08-19 |
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Granted publication date: 20171124 Termination date: 20210609 |