CN107243264A - A kind of crude oil storage tank anti-sludge deposition Novel rotary jet agitator - Google Patents
A kind of crude oil storage tank anti-sludge deposition Novel rotary jet agitator Download PDFInfo
- Publication number
- CN107243264A CN107243264A CN201710428751.7A CN201710428751A CN107243264A CN 107243264 A CN107243264 A CN 107243264A CN 201710428751 A CN201710428751 A CN 201710428751A CN 107243264 A CN107243264 A CN 107243264A
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- Prior art keywords
- hydraulic retarder
- rotary jet
- crude oil
- storage tank
- jet agitator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
- B01F25/212—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being movable, e.g. rotating
- B01F25/2122—Rotating during jetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/32015—Flow driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
- B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
- B65D88/68—Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
Abstract
The invention discloses a kind of crude oil storage tank anti-sludge deposition Novel rotary jet agitator, including firm banking, hydraulic retarder outer barrel, thrust bearing, hydraulic retarder inner cylinder, planetary gears, rotational shell, top cover, nozzle；Hydraulic retarder outer barrel and hydraulic retarder inner cylinder collectively constitute hydraulic retarder, and hydraulic retarder lower end is connected with firm banking, the output shaft connection of upper end input shaft and planetary gears；Firm banking is by supporting fin to be connected with hydraulic retarder outer barrel.When fluid is by rotary jet agitator runner and after sprayed from nozzle, the fluid of injection produces the active force of opposite direction to rotary jet agitator shell, so as to drive rotary jet agitator shell to start rotation.Energy loss is small, speed control is steady, processing and manufacturing is easy and cheap, and sludge deposition is prevented available for crude oil storage tank, and blending homogenizes the occasion such as occasion and tank cleaning, desilting in the oil product tank such as crude oil, component oil, lubricating oil.
Description
Technical field
The present invention relates to the device that a kind of crude oil storage tank prevents sludge deposition, more particularly to a kind of anti-greasy filth of crude oil storage tank
Deposition uses Novel rotary jet agitator.
Background technology
With continuing to develop for World Economics, consumption of petroleum is sharply increased, while as various countries strategic oil inventory storehouse is built
If propulsion, the quantity and tank of crude oil storage tank, which are held, increasingly to be increased.Crude oil is during storage, because the difference of its density can be produced
Oil generation phase lamination, causes the property such as acid number, viscosity of each layer crude oil in storage tank also to differ, and is unfavorable for crude oil proportioning, shadow
Ring the stable operation of downstream oil refining apparatus；On the other hand, asphalitine, colloid, wax in oil composition etc. hold during storage
Easy agglomerate is simultaneously deposited to tank bottom formation greasy filth, influences oil transferring operation, and cause the corrosion of bottom configuration part.The two problems are tight
The economy, security and environment friendly of crude storage are have impact on again.
In recent years, rotary jet agitator is because its mixing effect is good, can smash tank bottom oil sludge, without motor or hydraulic motor
The advantages of driving, just progressively replaces affixed side wall type impeller-agitator and fixed nozzle formula agitator, and has obtained more and more extensive
Concern and accreditation.Earliest rotary jet agitator is by U.S. Butterworth system (Butterworth in the world
Systems) company and Exxon Research And Engineering companies of the U.S. developed jointly design in 1981, that is, used
In the clear canister of P-43 types (Submerged Rotary Jet Mixer, abbreviation SJR or RJM) of Cleaning Crude Oil Tank.Nowadays,
French Veolia (Veolia) company, Britain OPEC (Oil Pollution Environmental Control) company, Taiwan
The rotary jet agitator of Wo Mao limited companies and Wo Mao Science and Technology Ltd.s of Shenzhen is in the clear canister of P-43 types
On the basis of improve and form.Later, the rotary jet agitator was introduced into Japan and South Korea, NeoTechKorea companies of South Korea
(former Win companies) makes improvements and has applied for patent, and develops NK series of products；Japanese great Feng Co., Ltd. (now by
Japanese System Kikou corporate buyouts) rotary jet agitator be also carried out on the basis of the clear canister of P-43 types it is certain
Improve.The structure of above-mentioned offshore company's rotary jet agitator is similar, operation principle be substantially all for：By pressure oil pump
High-voltage high-speed fluid enter rotary jet agitator entrance, promote porch axial-flow type water turbine at a high speed rotate, turbine
On the input shaft of gear reduction box, driven after three-level worm and gear slows down (speed reducing ratio up to ten thousand) by output shaft
Rotary jet agitator shell is slowly rotated with about 150~180min/r rotating speed, thus crude oil with big flow, at high speed from
Nozzle level is ejected, and realizes the mixing of stirring up and down of crude oil in impact and the tank to deposit in tank；The agitator also may be used
To apply in Cleaning Crude Oil Tank operation, the clear water sprayed using rotary jet agitator is made tank bottom sludge broken and dissolved,
And then reclaim.No matter from variety type or from the point of view of technical indicator, external rotary jet agitator is more ripe, but
For objective, following shortcoming is still suffered from：(1) due to driving rotating-spray by the axial-flow type water turbine of fluid forces porch
Agitator rotates, and the energy loss of fluid is larger, and then makes injection hitting power to greasy filth by certain influence；(2) use
The mode of three-level Worm Wheel System controls the rotary speed of rotary jet agitator, and this ways of deceleration transmission efficiency is low, if
Count difficulty of processing larger；In addition, the parts of whole rotary jet agitator rotation are more, the probability changed is damaged larger.
The domestic research about rotary jet agitator is started late, and is developed also relatively slowly, initial rotary jet agitator
It is relatively simple for structure, drive and rotate by the power jet of one or several biasings, while using one or more main burner
It is stirred.From 1998 so far, more than 20 can looks into patent.Wherein comparing representational patent includes：Jiangxi benevolence is up in fact
The multi-functional petroleum product regulating nozzle (ZL 200520096724.7) of industry Co., Ltd invention, the rotation of storage tank petroleum products blending angle
Turn shower nozzle (ZL 200820137527.9) etc.；A kind of oil tank oil of Hubei Wan An environmental protection petrochemical equipment Co., Ltd invention is adjusted
Close rotary nozzle (ZL 201020255020.0)；Rotating nozzle for blending petroleum product in oil tank (the ZL of Jiujiang Huang Shangzhi's invention
98232323.9)；The rotary-spraying stirring mixer (ZL 200420008229.1) of Sichuan Chen Jing et al. inventions.Above-mentioned this kind of rotation
Jet agitator is all without gear reduction, it is impossible to rotary speed is controlled and adjusted.In order to prevent rotary speed mistake
It hurry up, its power jet diameter is typically small and easily blocks, once blocked, whole rotary jet agitator just can not be just
Often work.In addition, the amount of jet of this kind of rotary jet agitator is smaller, jet direction is typically tilted upward, it is impossible to bottom of storage tank
Portion's liquid forms effective impact, without sediment-proof function.Therefore, this kind of rotary jet typically can be only applied to progress in oil tank
The blending of various component oils, it is impossible to which playing a part of smashing greasy filth in Large Oil Tank prevents deposition.
With the development of rotary jet agitator, the country starts to occur the rotating-spray stirring with gear mechanism decelerator
Device.2004, the Xie little Peng of South China Science ＆ Engineering University, what grand hawk devised a kind of jet-flow type jetting agitator (ZL
200420094871.6)；2011, in order to improve the range of the agitator and reduce its rotary speed, original central-axis type
Planetary gears is improved to the bigger multistage few teeth difference formula reduction gearing mechanism (ZL 201110417513.9) of speed reducing ratio；Spray
The engagement that mouth passes through bevel-gear sett, it is possible to achieve along the rotation of horizontal axis, substantially increases jet covering space.2006
To 2008, Zhang Qinghong, Fu Zhiqing, Wan Shuting et al. devised rotary oil-jetting mixer (ZL 200620146978.9)
With oil rotating spray all-directional blending sweeper (ZL 200810059257.9), latter of which belongs to the former modified, tooth
Wheel reducing gear is two-stage fixed shaft gear train reducing gear, has one by worm and gear and hinge, connecting rod in its two nozzles
Mechanism is realized and swung up and down, and then is realized to the comprehensive stirring of oil product progress in tank.2008, Zhai Zhanjiang invented oil product storage tank
With anti-deposition self-cleaning device (ZL 200810041432.1) and mixer for oil product storage tank (ZL 200820151700.0), this is stirred
Mixing the main structure of device has two：One is to use " first-stage worm gear worm screw+one-level fixed axis gear transmission " gear reduction,
Two be nozzle interior there is provided nozzle rotor and propeller, can realize that fluid spiral sprays, fluid is in nozzle interior during operation
Mixed once process is realized, second of mixed process is realized in storage tank., Chen Songying, Qu Yanpeng of Shandong University etc. in 2011
People devises a kind of rotary jet mixer (ZL 201110268093.2), using three-level turbine and worm decelerator rate controlling, adopts
Sprayed with four self-exicited oscillation pulsded jets, two of which nozzle level, two other inclination., the ginger of Fushun in 2013
The dimension people have applied for utility model patent --- rate controlling rotary jet agitator (ZL 201320416513.1), the rotating-spray is stirred
Mixing device has six nozzles, but does not mention specific gear mechanism type.Rotating-spray of the above with gear mechanism is stirred
Mix device, although have significant improvement and raising compared with the rotary jet agitator of gearless machine, but still suffer from many deficiencies
Part, maximum of which is disadvantageous in that：Gear mechanism speed reducing ratio for speed control is too small, only tens or on
Hundred.When rotary jet agitator amount of jet is larger, fluid forces axial-flow type water turbine spin even faster, because slow down it is smaller and
So that the rotary speed of rotary jet agitator shell is accelerated, it is difficult to when having enough percussions to the greasy filth in a direction
Between, prevent that the ability of sludge deposition is weaker.On the other hand, because injection effective radius is smaller, the stirring to crude oil in whole tank
Mixing efficiency is low relatively low, and effect is also poor.
The content of the invention
It is an object of the invention to provide a kind of crude oil storage tank anti-sludge deposition Novel rotary jet agitator.
The purpose of the present invention is achieved through the following technical solutions：
The crude oil storage tank anti-sludge deposition Novel rotary jet agitator of the present invention, including firm banking, hydraulic damping
Device outer barrel, thrust bearing, hydraulic retarder inner cylinder, planetary gears, rotational shell, top cover, nozzle；
The hydraulic retarder outer barrel and hydraulic retarder inner cylinder collectively constitute hydraulic retarder, hydraulic retarder lower end with
Firm banking is connected, and the output shaft of upper end input shaft and planetary gears is connected；
The firm banking is by supporting fin to be connected with hydraulic retarder outer barrel；
The nozzle is connected by flange with rotational shell, and the nozzle is the arc-shaped bend nozzle or inclined arranged to the heart
The straight nozzle of heart arrangement.
As seen from the above technical solution provided by the invention, the anti-greasy filth of crude oil storage tank provided in an embodiment of the present invention sinks
Product uses Novel rotary jet agitator, and energy loss is smaller, speed control is more steady, it is easy and cheap to fabricate,
Sludge deposition is prevented available for crude oil storage tank, and blending homogenizes occasion and storage tank in the oil product tank such as crude oil, component oil, lubricating oil
The occasions such as cleaning, desilting.
Brief description of the drawings
Fig. 1 a, Fig. 1 b are respectively the anti-sludge deposition Novel rotary jet agitation of crude oil storage tank provided in an embodiment of the present invention
The three-dimensional structure installation diagram and exploded perspective view of device；
Fig. 2 a, Fig. 2 b are respectively the anti-sludge deposition Novel rotary jet agitation of crude oil storage tank provided in an embodiment of the present invention
The nozzle top view of the eccentric setting of device and the bent nozzle top view arranged to the heart；
Fig. 3 a, Fig. 3 b are respectively the anti-sludge deposition Novel rotary jet agitation of crude oil storage tank provided in an embodiment of the present invention
Device side wall installing type understructure schematic diagram and center installing type understructure schematic diagram；
Fig. 4 a, Fig. 4 b are respectively the anti-sludge deposition Novel rotary jet agitation of crude oil storage tank provided in an embodiment of the present invention
Side wall mounting means figure and tank center mounting means figure in the installation storage tank of device；
Fig. 5 a, Fig. 5 b is in the anti-sludge deposition Novel rotary jet agitators of crude oil storage tank provided in an embodiment of the present invention
The three-dimensional structure sectional view and two-dimensional structure diagrammatic top view of hydraulic retarder.
Embodiment
With reference to the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
The embodiment of invention, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to protection scope of the present invention.
The crude oil storage tank anti-sludge deposition Novel rotary jet agitator of the present invention, its preferably embodiment
It is：
Including firm banking, hydraulic retarder outer barrel, thrust bearing, hydraulic retarder inner cylinder, planetary gears, rotation
Shell, top cover, nozzle；
The hydraulic retarder outer barrel and hydraulic retarder inner cylinder collectively constitute hydraulic retarder, hydraulic retarder lower end with
Firm banking is connected, and the output shaft of upper end input shaft and planetary gears is connected；
The firm banking is by supporting fin to be connected with hydraulic retarder outer barrel；
The nozzle is connected by flange with rotational shell, and the nozzle is the arc-shaped bend nozzle or inclined arranged to the heart
The straight nozzle of heart arrangement.
The planetary gears is two-stage series connection NGW planetary gears；
The planetary speed increasing ratio of two-stage NGW types is 1：80.
Installing type or side wall installing type centered on the firm banking, the support fin of the center installing type base is ellipse
It is circular or square.
The crude oil storage tank anti-sludge deposition Novel rotary jet agitator of the present invention, solves domestic swivel nozzle at present
Agitator jet intensity is weak, effective stirring radius is small, rotary speed is too fast, and the three-level that external rotary jet agitator is present
The deficiency such as turbine and worm decelerator transmission efficiency is low, design difficulty of processing is larger.From crude oil energy security angle, economic angle
And environmental protection angle, designed and developed out that energy loss is smaller, speed control is more steady, processing and manufacturing easily and price is low
The anti-sludge deposition rotary jet agitator of honest and clean novel crude oil storage tank.
In design concept, the present invention abandons the usual design concept of domestic and international rotary jet agitator：Pushed away using current
The driving agitator rotation of moving axis streaming water turbine, then by up to ten thousand to ten tens of thousands of speed reducing ratio, is transmitted after speed is reduced
Rotary jet agitator shell is given, so that fluid slowly sprays with the rotation of agitator shell from nozzle.The present invention is used
A pair of arcuate nozzles realize the rotation of rotary jet agitator, when fluid is by rotary jet agitator runner and from nozzle spray
After going out, because nozzle deflects certain angle, the fluid of injection produces the active force of opposite direction to rotary jet agitator shell, from
And drive rotary jet agitator shell to start rotation.What is more important, the present invention uses " gear speeder+hydraulic damping
The speed control to rotary jet agitator is realized in the combination of device "：Top cover is driven after rotary jet agitator shell rotates
Rotated with the input shaft of planetary gears, after planetary gear speedup, the output speed increase of gear mechanism, output torque
Reduce；The input shaft of hydraulic retarder is the output shaft of planetary gears, and the faster hydraulic retarder of rotary speed is produced
The moment of resistance is bigger, when the moment of resistance that hydraulic retarder is produced is equal with the driving moment of input, the rotation of hydraulic retarder
Speed reaches stabilization, and this speed also determines the final rotary speed of rotary jet agitator shell, realized to rotation spray
Penetrate the control of agitator shell speed, meeting prevents sludge deposition rotary jet agitator in big flow, large stream radius
There is the requirement of sufficiently low rotary speed simultaneously, enough impulsive force and action time are produced into greasy filth, it is crushed and again
It is suspended in storage tank without depositing.
Compared with domestic and international existing rotary jet agitator, the present invention has following features：
1st, type of drive is more direct.Need not first drive shaft streaming water turbine rotation, then after reducing gear slows down
Drive rotary jet agitator rotation；And the reaction force driving for using nozzle to produce.Accordingly, it is capable to measure smaller, the equal water of loss
Effective stirring radius under the conditions of power is bigger.
2nd, speed control is realized using the combination of " gear mechanism+hydraulic retarder ".Domestic and international existing various rotation sprays
Penetrate agitator and once design completion, rotary speed can not carry out Secondary Control, and the present invention can be by changing different sticky liquid
Body medium adjusts the rotary speed of rotary jet agitator within the specific limits, is not only simple in structure, and gearratio is low, and system
Make, install and maintenance cost is greatly reduced.
Specific embodiment：
As shown in Fig. 1 a to Fig. 5 b, the composition rotation spray such as rotary jet agitator and storage tank, oil pipeline, valve and oil pump
Penetrate stirring system.
Crude oil is delivered to side wall or storage tank in storage tank by oil pump after tank bottom extraction by oil pipeline
The rotary jet bottom inlet at center.Connected between rotary jet agitator and oil pipeline by 8 inch standard flanges, must
Deep floor is set between the oil pipeline of junction and ground both when wanting, prevents from shaking when rotary jet agitator from working
It is dynamic.Rotary jet agitator mainly includes firm banking 1, hydraulic retarder outer barrel 2, thrust bearing 3, hydraulic damping in structure
Device inner cylinder 4, planetary gears 5, rotational shell 6, top cover 7, nozzle 8 etc.；Wherein firm banking 1, hydraulic retarder outer barrel 2
The region that bottom and nozzle 8 are closed constitutes the fluid passage of rotary jet agitator；Hydraulic retarder and the structure of planetary gears 5
Into the speed control system of rotary jet agitator.After fluid enters rotary jet agitator, turned over along fluid course after 90 °
Sprayed from nozzle 8, nozzle 8 has 30 ° or so of drift angle, therefore the fluid sprayed can produce moment of torsion to rotary jet agitator, should
Rotated together with torque drive rotary jet agitator shell 6 and the nozzle 8 connected with shell and top cover 7.Nozzle 8 is outer with rotation
Shell 6 is connected by standard flange, is convenient for changing the nozzle of different model；Pass through bolt between top cover 7 and rotary jet agitator
Connection, between the two provided with sealing ring, to prevent that crude oil enters planetary gears 5 in storage tank.Top cover 7 rotate after drive with
Its input shaft of planetary gears 5 being connected rotates, and planetary gear 5 is the NGW type planetary gears of two-stage series connection, is had per one-level
Three planetary gears, play a part of power dividing and improve planetary gears bearing capacity；I and II planetary gears
Planet carrier is respective input shaft, and the output shaft of first order planetary gears is the input of second level planetary gears
Axle.The speed increasing ratio of planetary gears 5 is about 1：80, the input shaft of hydraulic retarder inner cylinder 4 is the defeated of planetary gears 5
Shaft, when the rotating speed of rotational shell 6 is delivered to hydraulic retarder inner cylinder 4 by planetary gears 5, rotating speed increase is original
80 times, the principle being basically unchanged according to power, driving moment is reduced to original 1/80.Have between hydraulic retarder inner/outer tube
Viscous liquid medium is full of in about 1mm gap, gap, hydraulic retarder outer barrel 2 is connected by welding manner with firm banking 1
Connect, when hydraulic retarder inner cylinder 4 rotates, can produce viscosity according to viscous fluid newton module, between inner/outer tube and rub
Wipe the moment of resistance.When frictional resistance moment is equal with driving moment, the rotating speed of hydraulic retarder reaches stable state, the rotary speed
Also the final rotary speed of rotary jet agitator shell is determined.
Because the viscosity of liquid medium determines the drag characteristic of hydraulic retarder to a certain extent, it is possible to pass through
Change the liquid medium of different viscosities to change the drag characteristic of hydraulic retarder, so as to change the rotation of rotary jet agitator
Speed.On the other hand, planetary gears 5 is immersed in viscous liquid medium, can be played a part of lubricating and be radiated, it is ensured that
The safe and stable operation of planetary gears 5.The fluid sprayed from nozzle 8 impacts to original fluid in storage tank, smashes
The greasy filth of agglomerate in stream range；On the other hand, the liquid near jet area is pulled away to form low-pressure area, and spray
Fluid runs into after tank skin and flowed to upper and lower both direction, according to Bernoulli equation, flow velocity most slow tank top center
Relatively high pressure area is formed, under the driving of pressure difference, is seethed in tank above and below fluid, is sufficiently mixed the liquid of each several part in tank, makes it
Physicochemical properties reach uniform state, realize the sediment-proof function of crude oil in tank., can also profit when storage tank is cleaned
The system is used, clear water is sprayed from rotary jet agitator, its powerful jet ability and larger jet radius pair is utilized
Deposit in tank bottom or side wall is washed away, and realizes the function of the clear tank of auxiliary.
Obviously, the system can be used for crude oil storage tank to prevent sludge deposition, be adjusted in the oil product tank such as crude oil, component oil, lubricating oil
Conjunction homogenizes the occasion such as occasion and tank cleaning, desilting.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art is in the technical scope of present disclosure, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Enclose and be defined.
Claims (4)
1. a kind of crude oil storage tank anti-sludge deposition Novel rotary jet agitator, it is characterised in that including firm banking (1),
Hydraulic retarder outer barrel (2), thrust bearing (3), hydraulic retarder inner cylinder (4), planetary gears (5), rotational shell (6),
Top cover (7), nozzle (8)；
The hydraulic retarder outer barrel (2) and hydraulic retarder inner cylinder (4) collectively constitute hydraulic retarder, hydraulic retarder lower end
It is connected with firm banking (1), upper end input shaft is connected with the output shaft of planetary gears (5)；
The firm banking (1) is by supporting fin to be connected with hydraulic retarder outer barrel (2)；
The nozzle (8) is connected by flange with rotational shell (6), and the nozzle (8) is the arc-shaped bend nozzle arranged to the heart
Or the straight nozzle of arranged off-centre.
2. crude oil storage tank anti-sludge deposition Novel rotary jet agitator according to claim 1, it is characterised in that institute
Planetary gears (5) is stated for two-stage series connection NGW planetary gears.
3. crude oil storage tank anti-sludge deposition Novel rotary jet agitator according to claim 2, it is characterised in that institute
It is 1 to state the planetary speed increasing ratio of two-stage NGW types：80.
4. crude oil storage tank anti-sludge deposition Novel rotary jet agitator according to claim 1, it is characterised in that institute
Installing type or side wall installing type centered on firm banking are stated, the support fin of the center installing type base is ellipse or circular
Or it is square.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710428751.7A CN107243264A (en) | 2017-06-08 | 2017-06-08 | A kind of crude oil storage tank anti-sludge deposition Novel rotary jet agitator |
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| CN201710428751.7A CN107243264A (en) | 2017-06-08 | 2017-06-08 | A kind of crude oil storage tank anti-sludge deposition Novel rotary jet agitator |
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| CN107243264A true CN107243264A (en) | 2017-10-13 |
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| CN108454815A (en) * | 2018-04-18 | 2018-08-28 | 陈朕 | A kind of submarine self-rotating jetting emitter |
| CN112552953A (en) * | 2020-11-30 | 2021-03-26 | 江阴市华能电热器材有限公司 | Crude oil deposition oil sand resistance-reducing rotary floating device |
| CN113750833A (en) * | 2021-08-31 | 2021-12-07 | 北部湾大学 | Storage tank oil blending device |
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| CN113750833B (en) * | 2021-08-31 | 2023-06-16 | 北部湾大学 | Storage tank oil blending device |
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Application publication date: 20171013 |