CN108506183B - Big flow multi-plunger permanent magnetism metering pump - Google Patents
Big flow multi-plunger permanent magnetism metering pump Download PDFInfo
- Publication number
- CN108506183B CN108506183B CN201810235584.9A CN201810235584A CN108506183B CN 108506183 B CN108506183 B CN 108506183B CN 201810235584 A CN201810235584 A CN 201810235584A CN 108506183 B CN108506183 B CN 108506183B
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- plunger
- pump housing
- permanent magnet
- permanent magnetism
- fixed
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- 230000005389 magnetism Effects 0.000 title claims abstract description 64
- 238000007789 sealing Methods 0.000 claims description 61
- 239000007788 liquid Substances 0.000 claims description 47
- 230000008676 import Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000000338 in vitro Methods 0.000 claims 1
- 239000004202 carbamide Substances 0.000 abstract description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 15
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000010759 marine diesel oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1433—Pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The invention discloses big flow multi-plunger permanent magnetism metering pumps, comprising: the pump housing is provided with the multiple Vertical Channels for being uniformly distributed a circle around central axis, inside accommodates single-column plug assembly with central axis in the pump housing；Permanent magnetism body disc, its surface for being located at the pump housing, and it can be around the center axis thereof of the pump housing, the permanent magnetism body disc is radially separated into even number ontology by equalization, among it every an ontology setting each ontology be the first noumenon, it is respectively and fixedly provided with permanent magnet on side towards the pump housing, the permanent magnet and single-column plug assembly have the mutual attractive force of up and down direction.The present invention solves the accurate measurement and supply of big flow urea in large-sized diesel motor after-treatment system, plunger is driven using permanent magnetic iron, permanent magnet rotation is driven to drive multiple plungers one by one by motor, the revolution by adjusting motor is the discharge capacity of adjustable pump.
Description
Technical field
The present invention relates to technical field of energy saving and environmental protection.It is more particularly related to which big flow multi-plunger permanent magnetism measures
Pump, mainly for large-sized diesel motor SCR (Selective Catalytic Reduction, abbreviation SCR) after-treatment system
The accurate measurement and supply of middle big flow urea.
Background technique
SCR technology is to compare mainstream at present and be widely used in diesel engine emissions to post-process control technology.SCR skill
Mainly for the carry out blowdown improvement of diesel engine emissions pollutant NOx, core is art: will generate reducing agent NH3
Aqueous solution of urea (aqueous solution of urea of urea content 32 points five percent) accurate measurement and be injected into exhaust in due course
System generates reducing agent NH by the hydrolysis and pyrolysis of aqueous solution of urea3, reducing agent NH3It is reacted with gas pollutant NOx,
Reach the improvement to exhaust contaminant in turn.Therefore, the accurate measurement and supply of SCR urea pump are very important.
Currently, SCR technology, which has been widely used, in vehicular emission field carries out motor vehicle blowdown improvement, still, motor vehicle
The diesel engine power used is all little, and domestic vehicular engine maximum power is generally all in 400KW or less (such as Weihe River bavin WP12
It is 350KW for 375KW, Yuchai YC6L).The flow of urea metering pump can meet use in 7000ml/h or less.With country
Emission regulation is further expanded and is reinforced, and power starts up to the large-sized diesel generating set and marine diesel oil of 2000KW or more
The pollution control of machine will be inevitable.The flow of demand urea metering pump is in 20000ml/h or more.Therefore, in face of this new skill
Art and the market demand, root problem existing for existing automobile-used urea pump: urea pumpage is too small, will be unable to meet large-scale bavin
The demand that oil turbine handles gas pollutant NOx.
Summary of the invention
It is an object of the present invention to provide big flow multi-plunger permanent magnetism metering pumps, after solving large-sized diesel motor
The accurate measurement and supply of big flow urea, drive plunger using permanent magnetic iron in reason system, drive permanent magnet by motor
Rotation drives multiple plungers one by one, and the revolution by adjusting motor is the discharge capacity of adjustable pump.
In order to realize these purposes and other advantages according to the present invention, big flow multi-plunger permanent magnetism metering pump is provided,
Include: the pump housing, with central axis, is provided in the pump housing and is uniformly distributed the multiple vertical logical of a circle around central axis
Road inside accommodates single-column plug assembly；Permanent magnetism body disc is located at the surface of the pump housing, and can turn around the central axis of the pump housing
Dynamic, the permanent magnetism body disc is radially separated into even number ontology by equalization, among it every each ontology of ontology setting be the
One ontology, towards the side of the pump housing on be respectively and fixedly provided with permanent magnet, the permanent magnet and single-column plug assembly have up and down direction
Mutual attractive force.
Preferably, the stopper head on single-column plug assembly top is soft magnetic materials, is fixed with permanent magnet on the first noumenon.
It preferably, is the second ontology, the column on single-column plug assembly top in addition to the first noumenon on the permanent magnetism body disc
Chock plug is the pole n permanent magnet or the pole s permanent magnet, and the first noumenon of the permanent magnetism body disc is towards being fixedly installed the pole N on the side of the pump housing
Permanent magnet, the second ontology is towards the pole S permanent magnet is fixedly installed on the side of the pump housing.
Preferably, on the number of the single-column plug assembly and the first noumenon permanent magnet number, the two odevity is opposite.
Preferably, the pump housing upper surface is provided with the sealing plate that center has through-hole, and outer edge is fixed on the pump housing
On, the shrinkage pool just with through-hole perforation, the lower end of inner fixed bearing seat, the upper end following table of bearing block are provided on the pump housing
Tight against sealing plate upper surface, the bearing in the bearing block is equipped with vertical rotation axis in face, in center axis thereof and the pump housing
Mandrel line is overlapped, and the horizontal fixing sleeve of permanent magnetism body disc is set in rotation axis, and by motor driven around the central axis of the pump housing
It rotates, is further fixed on horizontal ring baffle in the rotation axis, closely permanent magnetism body disc lower surface, the ring baffle and axis
Height adjustment gasket is provided between holding.
Preferably, the single-column plug assembly includes stopper head, plunger, plunger bushing and sealing area, and the plunger bushing is solid
Due to Vertical Channel middle and lower part and have hollow structure, the stopper head be up big and down small forge piece of step type structure, the plunger
Head most next stage hierarchic structure is fixedly connected with plunger, and plunger is matched with just in the hollow structure of plunger bushing, the stopper head
Upper surface is provided with reset spring to lower recess, and sealing plate is close in the upper end, and the plunger bushing lower end is sealedly connected with seal area
Domain, the plunger can be moved up and down along plunger bushing and entrance or removal sealing area, the sealing area have been respectively communicated with feed liquor
Check valve and out liquid check valve.
It preferably, further include fixed block and adjusting block, the fixed block has hollow structure and is fixed on Vertical Channel
Inner wall, fixed block inner surface lower part has internal screw thread, and it is outer that also there is the adjusting block hollow structure and outer surface to have
Screw thread, the external screw thread of the adjusting block are matched with the internal screw thread of fixed block, and the plunger bushing cooperates just is fixed on the tune
In the hollow structure of locking nub.
Preferably, the lower end outside of the adjusting block, which is arranged with, holds out against spring top, and the lower end for holding out against spring is closely close
Seal the lower surface in region.
Preferably, further include that runner links up plate, be fixed on pump housing lower end, the runner, which is linked up above and below plate, to be divided
It is not fixed with feed liquor runner ditch and out liquid stream road ditch, is special-shaped seal ring, the feed liquor runner ditch and liquid stream road ditch is equal out
Including multiple ends and the curved channel that summarizes for being connected to multiple ends, multiple ends be with opening arc-shaped structure and just
It is sealed in well at feed liquor check valve or the out import or export of liquid check valve, the opening of multiple ends is connected to that summarize arc logical
Road, it is described to summarize the total mouth of curved channel connection feed liquor or the out total mouth of liquid.
Preferably, the stopper head and plunger have the hollow structure of perforation, are provided in the hollow structure of stopper head
Liquid check valve is returned, penetrates through sealing area below the hollow structure of plunger.
The present invention is include at least the following beneficial effects:
1, permanent magnetism metering pump of the invention eliminates the electromagnetic coil of traditional electromagnetic dosing pump, to substantially reduce pump
Volume.
2, permanent magnetism metering pump of the invention has used multiple permanent magnets (m) and multiple plungers (n), then motor is every
The work times of plunger in total that turn around are m × n times, greatly improve the flow of pump.
3, permanent magnetism metering pump of the invention adjusts the flow of pump by adjusting the revolution of motor, and such method is than high frequency arteries and veins
Punching driving is simpler.
4, permanent magnetism metering pump of the invention can also set polar for permanent magnet and plunger, and there are two excellent for such scheme tool
Point: 1. can cancel spring, keep structure simpler；2. increasing the thrust or pulling force that plunger is subject to.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is the top view of the first structure of metering pump of the present invention；
Fig. 3 is the top view of second of structure of metering pump of the present invention；
Fig. 4 is the structural schematic diagram of the first structure of permanent magnet of the present invention；
Fig. 5 is the cross-sectional view of the first structure of permanent magnet of the present invention；
Fig. 6 is the cross-sectional view of single-column plug assembly of the present invention；
Fig. 7 is the top view that runner of the present invention links up plate.
Description of symbols:
1-sealing plate, 2-stopper heads, 3-reset springs, 4-plungers, 5-fixed blocks, 6-adjusting blocks, 7-plungers
Set, 8-sealing areas, 9-feed liquor check valves, 10-hold out against spring, and 11-go out liquid check valve, and the 12-pump housings, 13-is vertical logical
Road, 14-the first noumenons, the 15-the second ontology, 16-permanent magnetism body discs, 17-permanent magnets, 18-rotation axis, 19-bearings, 20-
Height adjustment gasket, 21-ring baffles, 22-runners link up plate, and 23-ends, 24-summarize curved channel, and 25-feed liquors are total
Mouthful, 26-permanent magnet the covers.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and is not the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
As shown in Fig. 1 to 7, the present invention provides big flow multi-plunger permanent magnetism metering pump, comprising: the pump housing 12, with center
Axis is provided with the multiple Vertical Channels 13 for being uniformly distributed a circle around central axis in the pump housing 12, inside accommodates list
Plunger assembly；Permanent magnetism body disc 16 is located at the surface of the pump housing 12, and can be around the center axis thereof of the pump housing 12, the permanent magnetism
Body disc 16 is radially separated into even number ontology by equalization, among it every an ontology setting each ontology be the first noumenon 14,
It has the phase of up and down direction with single-column plug assembly towards permanent magnet 17, the permanent magnet 17 is respectively and fixedly provided on the side of the pump housing 12
Mutual attraction.
In the above-mentioned technical solutions, the electromagnetic coil of traditional electromagnetic coil metering pump is replaced by permanent magnet 17, is passed
The electromagnetic coil driving measuring pump low efficiency of system, the time that electric current driving measuring pump pump once needs is longer, in addition electromagnetic coil
Volume is larger, cancels electromagnetic coil, uses the driving of permanent magnet 17 instead, a pump housing 12 can be according to flow difference using different number
Single-column plug assembly, as long as permanent magnet 17 rotates, single-column plug assembly is ceaselessly pulled up rebound, realizes that metering pump disposably pumps out ratio
The flow of traditional approach mostly nearly two orders of magnitude, and the single plunger volume of the pump housing 12 is big compared with traditional metering pump plunger volume
It is big to reduce.
The Vertical Channel 13 of one circle perforation 12 upper and lower surface of the pump housing of setting on the single pump housing 12, in each Vertical Channel 13
It is provided with single-column plug assembly, each single-column plug assembly lower end is connected to feed liquor check valve 9 and out liquid check valve 11, each single plunger group
Part upper end is provided with horizontal permanent magnetism body disc 16, that is, permanent magnetism body disc 16 is provided with right above the pump housing 12, radially equal
Even to be separated into even number ontology, all ontologies for being spaced the setting of an ontology are the first noumenon 14, and remaining is the second ontology 15,
All the first noumenons 14 of permanent magnetism body disc 16 are provided with permanent magnet 17 on 12 side of the pump housing, and permanent magnetism body disc 16 can be around the pump housing 12
Central axis rotation, driven by existing feasible mode, permanent magnetism body disc 16 rotate when, permanent magnet 17 preferably covers
Whole single-column plug assemblies so that the attraction of the two is bigger, the material of single-column plug assembly be set as permanent magnet 17 close to when can
Attracted by permanent magnet 17, when permanent magnet 17 far from when be not attracted, the magnetizing direction of permanent magnet 17 is up and down direction, can drive list
Plunger assembly moves up and down, and the number of permanent magnet 17 does not have positive connection in the number and the first noumenon 14 of single-column plug assembly.
Multiple permanent magnets 17 are set on the first noumenon 14, can for one, two, three it is even more, with single plunger
It is rotated on the vertical horizontal plane of the axis of component around the central axis of the pump housing 12, permanent magnet 17 and 12 upper surface of the pump housing have one
Set a distance, interference when avoiding rotating, when permanent magnet 17 turns to the single-column plug assembly for covering its lower end, single-column plug assembly quilt
Magnetic force pull-up, and other uncovered single-column plug assemblies rebound, with the rotation of permanent magnet 17, single-column plug assembly is successively drawn
It rises, rebound, to realize the iterative motion of single-column plug assembly, and then realize and pump out liquid.
In another technical solution, the stopper head 2 on single-column plug assembly top is soft magnetic materials, on the first noumenon 14
It is fixed with permanent magnet 17.This is the first structure type of metering pump.The material of the stopper head 2 on single-column plug assembly top is soft magnetism
Material, such as iron can be attracted by permanent magnet 17, and each single-column plug assembly carries out the suction of urea liquid by the magnetic force of permanent magnet 17
Enter, carries out pressure output by reset spring 3 and single-column plug assembly resets.Permanent magnetism body disc 16 is disc-shaped structure, when rotation its
Central axis is overlapped always with the central axis of the pump housing 12, and the permanent magnet 17 being arranged on the first noumenon 14 is class sector structure, often
A permanent magnet 17 is completely covered on each the first noumenon 14, and the center close to permanent magnetism body disc 16 is not covered with permanent magnet 17, reserves
There are the central through hole and interior cycle space of permanent magnetism body disc 16, central through hole conveniently wears rotation axis 18, and interior cycle space prevents from rotating
Interference.
It is the second ontology 15, the list in addition to the first noumenon 14 on the permanent magnetism body disc 16 in another technical solution
The stopper head 2 on plunger assembly top is the pole n permanent magnet or the pole s permanent magnet, and the first noumenon 14 of the permanent magnetism body disc 16 is towards pump
It is fixedly installed the pole N permanent magnet on the side of body 12, the second ontology 15 is towards the pole S permanent magnet is fixedly installed on the side of the pump housing 12.
In the above-mentioned technical solutions, this is second of structure type of metering pump.Adjacent permanent magnet on permanent magnetism body disc 16
17 polarity is different, and the stopper head 2 on single-column plug assembly top can be the pole n permanent magnet, or the permanent magnet of the pole s.If
Stopper head 2 is the pole n permanent magnet, the then mutually exclusive generation of the pole n permanent magnet of the pole the N permanent magnet on permanent magnetism body disc 16 and stopper head 2
Thrust, and stopper head 2 is pushed open；The pole the n permanent magnet of the pole S permanent magnet on permanent magnetism body disc 16 and stopper head 2 attracts each other generation
Gravitation, and stopper head 2 is retracted.By the rotation of permanent magnetism body disc 16, so that each stopper head 2 is periodically pulled, pushes open, it is complete
At piston action.Permanent magnetism body disc 16 is alternated and is set at even number ontology, the first noumenon 14 and the second ontology 15 by even partition
It sets.Polarized is arranged in permanent magnet 17 on permanent magnetism body disc 16 and stopper head 2 is also configured as the permanent magnet of polarized, by the period
Property generate thrust and gravitation, it is convenient to omit reset spring 3, further by single-column plug assembly simplify.
In another technical solution, the number of permanent magnet 17 in the number and the first noumenon 14 of the single-column plug assembly,
The two odevity is opposite.The metering pump of above two structure type, on 16 the first noumenon 14 of permanent magnetism body disc 17 numbers of permanent magnet with
When the number of single-column plug assembly is even number or is odd number, suction is too big both when rotation, and motor drives permanent magnetism body disc
When 16 rotation, the rotatory force needed is too big, rotate and drive single-column plug assembly up and down piston motion when move irregularity, and one
For odd number, when another is even number, move more smooth.
In another technical solution, 12 upper surface of the pump housing is provided with the sealing plate 1 that center has through-hole, outside
Edge is fixed on the pump housing 12, the shrinkage pool just with through-hole perforation is provided on the pump housing 12, under inner fixed bearing 19
End, tight against 1 upper surface of sealing plate, the bearing 19 in 19, the bearing is equipped with vertical turn for 19, bearing upper end lower surfaces
Moving axis 18, center axis thereof are overlapped with the central axis of the pump housing 12, and the horizontal fixing sleeve of the permanent magnetism body disc 16 is set to rotation axis 18
On, and horizontal ring baffle is further fixed on the center axis thereof of the pump housing 12, the rotation axis 18 by motor driven
21, closely 16 lower surface of permanent magnetism body disc, is provided with height adjustment gasket 20 between the ring baffle 21 and bearing 19.
In the above-mentioned technical solutions, 12 upper surface of the pump housing is provided with sealing plate 1, and the outer edge of outer edge and the pump housing 12 is solid
It is fixed, it is fixed by existing screw, other feasible modes can also be used certainly and be fixed, the fixation of permanent magnetism body disc 16
And driving is all set in permanent magnet the cover 26, the lower edge of permanent magnet the cover 26 tight against on sealing plate 1, by sealing plate 1 into
One step is fixed and clamped.The center of the pump housing 12 is provided with downward shrinkage pool, and 19, bearing are up big and down small forge piece of step type structure, under
End is matched in shrinkage pool just, and upper end protrudes from the bottom surface of lower end tight against on sealing plate 1, and sealing plate 1 is further fixed
It compresses, 19 lower ends of bearing are fixed in shrinkage pool, fixed by screw.Bearing is provided with bearing 19, axis in 19 upper ends
It holds 19 inner rings and rotation axis 18 cooperates, the axis of rotation axis 18 is overlapped with the central axis of the pump housing 12, and permanent magnetism body disc 16 is sheathed on
It in rotation axis 18, and is driven by elastic cylinder split pin, so that permanent magnetic disk follows rotation axis 18 to rotate together, rotation axis 18 is logical
Its rotation of motor driven is crossed, the loose-proof flange nut of closely 16 upper surface of permanent magnetism body disc is additionally provided in rotation axis 18, is being rotated
Closely loose-proof flange nut is additionally provided with a bearing 19 on axis 18.A horizontal annular gear is further fixedly arranged in rotation axis 18
Plate 21, outer diameter are set smaller than the inner ring of permanent magnet 17, and permanent magnet 17 is not interfered to rotate, the closely permanent magnetism body disc of ring baffle 21
The setting of 16 lower surfaces, and height adjustment gasket 20 is provided between the bearing of lower section 19, pass through the thickness of height adjustment gasket 20
It is thin and number number adjust the spacing between the permanent magnet 17 on permanent magnetism body disc 16 and sealing plate 1, that is, adjust permanent magnetism
The distance between body 17 and single-column plug assembly, distance more close mutual power it is bigger, on the other hand also guarantee permanent magnet 17 with
There is interval between sealing plate 1, avoids interfering when rotation.
On the one hand the effect of sealing plate 1 avoids stopper head 2 from contacting with permanent magnet 17 on permanent magnetism body disc 16 and knocks to damage
It is bad；Sealing ring is provided on another aspect sealing plate 1, the liquid of sealing area 8 has by the gap of plunger 4 and plunger bushing 7 can
It can cooperate toward upstream although plunger 4 belongs to accurate small―gap suture with plunger bushing 7, after liquid upstream contacts permanent magnet 17,
Permanent magnet 17 is easily corroded, urea liquid crystallization easy to form after moisture evaporation is primarily due to, it is zero equal to influence bearing 19
The movement of part, therefore what is be arranged in the hollow structure for completely cutting off by sealing plate 1 and sealing ring, while passing through stopper head 2 returns liquid list
To valve, liquid can be flowed down by the hollow structure of stopper head 2, and be set as flowing from top to bottom, be unable to opposite direction stream.
In another technical solution, the single-column plug assembly includes stopper head 2, plunger 4, plunger bushing 7 and sealing area
8, the plunger bushing 7 is fixed on the middle and lower part of Vertical Channel 13 and has hollow structure, and the stopper head 2 is up big and down small rank
Trapezoidal-structure, the stopper head 2 most next stage hierarchic structure are fixedly connected with plunger 4, and plunger 4 is matched with plunger bushing 7 just
In hollow structure, 2 upper surface of stopper head is provided with reset spring 3 to lower recess, and sealing plate 1, the column are close in the upper end
7 lower end of plug sleeve is sealedly connected with sealing area 8, and the plunger 4 can move up and down along plunger bushing 7 and entrance or remove sealing area
8, the sealing area 8 has been respectively communicated with feed liquor check valve 9 and out liquid check valve 11.
In the above-mentioned technical solutions, plunger bushing 7 is located at the middle and lower part of Vertical Channel 13, and bottom surface and Vertical Channel 13
Bottom surface is concordant, and plunger bushing 7 has hollow structure, is inside arranged with plunger 4, stopper head 2 is multistage step structure, according to pump
Series is arranged in the flow of the volume of body 12 and needs, can be two-stage, three-level, level Four etc., stopper head 2 is up big and down small, top
Area is big, can increase magnetic force attraction, but the up and down motion of stopper head 2 for convenience, and needs are light-weight, therefore the face of lower part
Product is small, as long as guaranteeing the intensity of stopper head 2.Most next level structure of stopper head 2 and plunger 4 are connected to one knot
Structure, the axis both after connection guarantee to be overlapped as far as possible, and the every primary structure of general stopper head 2 and plunger 4 are disposed as cylindrical body knot
Structure, while the diameter of plunger 4 is less than the smallest diameter of stopper head 2, and plunger 4 cooperates with the accurate small―gap suture of plunger bushing 7 just, column
When chock plug 2 moves, the top reaches 1 lower surface of sealing plate, and 4 lower end of plunger of bottom connection can enter sealing area 8.Column
The upper surface of chock plug 2 is recessed forms recessed hole downwards, and reset spring 3 is arranged inside, and sealing plate is close in the upper end of reset spring 3
1, the impact force between stopper head 2 and sealing plate 1 is excessive in order to prevent, is provided with rubber buffer, works as a buffer.Permanent magnet
The permanent magnet of permanent magnet 17 and stopper head 2 on disk 16 is provided with polarity chron, does not need setting reset spring 3, between each other
Thrust can allow plunger 4 reset.7 lower end of plunger bushing is communicated with sealing area 8, and sealing area 8 is made of liquid in-out plate, sealing
8 lower end of region has been respectively communicated with feed liquor check valve 9 and out liquid check valve 11, and the opening of two check valves is on the contrary, in about 4 plunger
When being moved into or removing sealing area 8, the volume size of sealing area 8 can be changed, to realize pumping out for liquid.
It further include fixed block 5 and adjusting block 6 in another technical solution, the fixed block 5 has hollow structure and consolidates
Due to the inner wall of Vertical Channel 13, the 5 inner surface lower part of fixed block has internal screw thread, and the adjusting block 6 also has hollow knot
Structure and outer surface have external screw thread, and the external screw thread of the adjusting block 6 is matched with the internal screw thread of fixed block 5, and the plunger bushing 7 is proper
Good cooperation is fixed in the hollow structure of the adjusting block 6.
In the above-mentioned technical solutions, fixed block 5 is fixed on the inner wall of Vertical Channel 13, has hollow structure, stopper head 2
The top outer edge has internal screw thread, the outer wall of adjusting block 6 close to 5 hollow structure inner wall of fixed block, the lower inner wall of fixed block 5
It is provided with external screw thread, is matched just with inner bolt, the lower end of adjusting block 6 extends outwardly the inner wall of closely Vertical Channel 13,
And lower end and the lower end of fixed block 5 have certain interval, give adjustment process certain space, adjusting block 6 also has hollow knot
Structure, plunger bushing 7 is fixed in the hollow structure of adjusting block 6 and the two lower surface is concordant.The process that fluid flow is adjusted, Mei Gedan
Plunger assembly can not be the same, needs to be adjusted in advance, so that the amount of liquid that each single-column plug assembly pumps out is consistent, into
And realize the consistency of metering.After single-column plug assembly is installed in Vertical Channel 13, by between fixed block 5 and adjusting block 6
Internal screw thread and the distance between external screw thread adjustable column plug sleeve 7 and the adjacent primary structure of stopper head 2, the upper surface of adjusting block 6 is set
It is equipped with rubber buffer circle, buffer function, the sealing on adjustable column plug sleeve 7 are played when stopper head 2 moves downward contact stud plug sleeve 7
It encloses with stopper head 2 close to the distance between primary structure, to adjust the amount for pumping out liquid.Fixed block 5, adjusting block 6, plunger
The equal indent of wall surface that set 7 is fixed to each other cooperation is provided with sealing ring, the leakproofness of whole device when guaranteeing pump liquid.
In another technical solution, the lower end outside of the adjusting block 6, which is arranged with, holds out against 10 top of spring, holds out against spring
The lower surface of 10 lower end closely sealing area 8.The possibility and sealing plate 1 that single-column plug assembly has during rebound moves up are pressed
Not tight, there are errors for the single-column plug assembly total length after overregulating, so to hold out against 10 reduction length of spring to accommodate this
The error of a length, the long decrement of single-column plug assembly is just big, and short decrement is with regard to smaller, so that the upper table of single-column plug assembly
Face is adjacent to sealing plate 1, because of the not necessarily the same length of each single-column plug assembly during producing installation.Sealing
The outer edge of region 8 and Vertical Channel 13 is also equipped with sealing ring.
In another technical solution, further includes that runner links up plate 22, be fixed on 12 lower end of the pump housing, the runner is linked up
It is respectively fixed with feed liquor runner ditch and out liquid stream road ditch above and below plate 22, is special-shaped seal ring, the feed liquor runner
Ditch and liquid stream road ditch out, which include multiple ends 23, summarizes curved channel 24 be connected to multiple ends 23, and multiple ends 23 are
It arc-shaped structure with opening and is sealed at feed liquor check valve 9 or the out import or export of liquid check valve 11 just, it is multiple
The opening of end 23, which is connected to, summarizes curved channel 24, and the curved channel 24 that summarizes is connected to the total mouth 25 of feed liquor or the out total mouth of liquid.
In the above-mentioned technical solutions, the pump housing 12 of the invention is multiplunger, it is therefore necessary to each single-column plug assembly
Liquid in-out link up get up, it is therefore desirable to by runner link up plate 22,2 groups of runner ditches are set thereon, 1 group 1 group of feed liquor goes out liquid, peace
It is linked up on plate 22 loaded on runner, runner is linked up setting feed liquor runner above plate 22 and summarized and the total mouth 25 of feed liquor, and lower section is arranged
Liquid stream road summarizes out and the total mouth of liquid designs by special-shaped seal ring formation runner ditch according to the shape of runner out.With
Illustrate shape for feed liquor runner ditch, all feed liquor check valves 9 are provided with circular arc shape sealing ring in entrance, have and open
Mouthful, and open communication summarizes curved channel 24, the middle part ring for linking up plate 22 close to runner is set, and is summarized curved channel 24 and is connected to again
The total mouth 25 of feed liquor is so realized and summarizes all inlets for the total mouth 25 of a feed liquor.Liquid stream road ditch, which is also arranged such, out is
Can, it is equivalent to and feed liquor runner ditch is had rotated the lower section that 180 degree is set to runner communication plate 22.It is referred both to above and below herein
Be runner link up plate 22 upper and lower surface or downwards recess form runner ditch.
In another technical solution, the stopper head 2 and plunger 4 have a hollow structure of perforation, stopper head 2 it is hollow
It is provided with back liquid check valve in structure, penetrates through sealing area 8 below the hollow structure of plunger 4.
The course of work of the invention is as follows:
When permanent magnetism body disc 16 rotates under the drive of the motor, when stopper head 2 is pulled up under the magneticaction of permanent magnet,
Stopper head 2 drives plunger 4 to retract in plunger bushing 7, and volume, which becomes larger, in sealing area 8 leads to pressure reduction, and feed liquor check valve 9 is beaten
It opens, liquid check valve 11 is closed out, and liquid flows into sealing area 8；When stopper head 2 is in 3 power of reset spring or phase anti-magnetic
When springing back under thrust, stopper head 2 drives plunger 4 to stretch out outside plunger bushing 7, and volume, which becomes smaller, in sealing area 8 leads to pressure liter
Height, liquid check valve 11 is opened out, and feed liquor check valve 9 is closed, and liquid is flowed out from sealing area 8.In sealing area 8 every time
The variable quantity of volume is consistent, then the amount of liquid flowed out every time is also consistent, therefore can accurately be counted to urea liquid
Amount and supply.
Embodiment
The design diameter of the pump housing of the present invention is 80mm, total height 160mm.5 single-column plug assemblies are set in the pump housing, each
Ram travel 2mm, diameter of plunger 4mm.When motor drives the revolution of permanent magnet rotating to be 2000RPM, pump liquid flow is 30L/
h。
And existing electromagnetism single plunger pump diameter is 66mm, total height 115mm.Limit flow is 0.36L/h.
It can be seen that pump housing pump liquid flow of the invention is far longer than existing electromagnetism single plunger pump pump liquid flow.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (8)
1. big flow multi-plunger permanent magnetism metering pump characterized by comprising
The pump housing is provided with multiple Vertical Channels that a circle is uniformly distributed around central axis with central axis in the pump housing,
Single-column plug assembly is accommodated in it；
Permanent magnetism body disc, is located at the surface of the pump housing, and can around the center axis thereof of the pump housing, the permanent magnetism body disc radially by
Equalization is separated into even number ontology, among it every an ontology setting each ontology be the first noumenon, towards the side of the pump housing
On be respectively and fixedly provided with permanent magnet, the permanent magnet and single-column plug assembly have the mutual attractive force of up and down direction；
The pump housing upper surface is provided with the sealing plate that center has through-hole, and outer edge is fixed on the pump housing, on the pump housing
It is provided with the shrinkage pool just with through-hole perforation, the lower end of inner fixed bearing seat, the upper end lower surface of bearing block is tight against sealing plate
Upper surface, the bearing in the bearing block are equipped with vertical rotation axis, and center axis thereof is overlapped with the central axis of the pump housing, institute
The horizontal fixing sleeve of permanent magnetism body disc is stated in rotation axis, and passes through center axis thereof of the motor driven around the pump housing, the rotation
It is further fixed on horizontal ring baffle on axis, closely permanent magnetism body disc lower surface, is provided between the ring baffle and bearing
Height adjustment gasket；
The single-column plug assembly includes stopper head, plunger, plunger bushing and sealing area, and the plunger bushing is fixed on Vertical Channel
Middle and lower part and have hollow structure, the stopper head be up big and down small forge piece of step type structure, the stopper head most next stage ladder
Structure is fixedly connected with plunger, and plunger is matched with just in the hollow structure of plunger bushing, and the stopper head upper surface is to lower recess
It is provided with reset spring, sealing plate is close in the upper end, and the plunger bushing lower end is sealedly connected with sealing area, and the plunger can edge
Plunger bushing move up and down and entrance or remove sealing area, the sealing area has been respectively communicated with feed liquor check valve and liquid is unidirectional out
Valve.
2. big flow multi-plunger permanent magnetism metering pump as described in claim 1, which is characterized in that single-column plug assembly top
Stopper head is soft magnetic materials, is fixed with permanent magnet on the first noumenon.
3. big flow multi-plunger permanent magnetism metering pump as described in claim 1, which is characterized in that remove first on the permanent magnetism body disc
This is the second ontology in vitro, and the stopper head on single-column plug assembly top is the pole n permanent magnet or the pole s permanent magnet, the permanent magnet
The first noumenon of disk is set towards the fixed setting pole N permanent magnet on the side of the pump housing, the second ontology towards fixation on the side of the pump housing
Set the pole S permanent magnet.
4. big flow multi-plunger permanent magnetism metering pump as claimed in claim 2 or claim 3, which is characterized in that the single-column plug assembly
The number of permanent magnet, the two odevity are opposite in number and the first noumenon.
5. big flow multi-plunger permanent magnetism metering pump as described in claim 1, which is characterized in that further include fixed block and adjusting
Block, the fixed block have hollow structure and are fixed on the inner wall of Vertical Channel, and fixed block inner surface lower part has interior spiral shell
Also there is hollow structure and outer surface to have an external screw thread for line, the adjusting block, the external screw thread of the adjusting block and fixed block it is interior
Screw thread matches, and the plunger bushing cooperates just to be fixed in the hollow structure of the adjusting block.
6. big flow multi-plunger permanent magnetism metering pump as claimed in claim 5, which is characterized in that the lower end outside of the adjusting block
It is arranged with and holds out against spring top, hold out against the lower surface of the lower end of spring closely sealing area.
7. big flow multi-plunger permanent magnetism metering pump as described in claim 1, which is characterized in that it further include that runner links up plate,
It is fixed on pump housing lower end, the runner links up above and below plate and is respectively fixed with feed liquor runner ditch and out liquid stream road ditch,
For special-shaped seal ring, the feed liquor runner ditch and liquid stream road ditch out, which include multiple ends, summarizes arc be connected to multiple ends
Channel, multiple ends are the arc-shaped structure with opening and are sealed in feed liquor check valve or the out import of liquid check valve just
Or exit, the opening of multiple ends, which is connected to, summarizes curved channel, described to summarize the total mouth of curved channel connection feed liquor or out liquid
Total mouth.
8. big flow multi-plunger permanent magnetism metering pump as described in claim 1, which is characterized in that the stopper head and plunger have
The hollow structure of perforation is provided with back liquid check valve in the hollow structure of stopper head, perforation sealing below the hollow structure of plunger
Region.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235584.9A CN108506183B (en) | 2018-03-21 | 2018-03-21 | Big flow multi-plunger permanent magnetism metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810235584.9A CN108506183B (en) | 2018-03-21 | 2018-03-21 | Big flow multi-plunger permanent magnetism metering pump |
Publications (2)
| Publication Number | Publication Date |
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| CN108506183A CN108506183A (en) | 2018-09-07 |
| CN108506183B true CN108506183B (en) | 2019-05-21 |
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| CN201810235584.9A Active CN108506183B (en) | 2018-03-21 | 2018-03-21 | Big flow multi-plunger permanent magnetism metering pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117345654B (en) * | 2023-11-22 | 2024-02-23 | 威海奥牧智能科技有限公司 | Magnetic pump with inner impeller and inner magnetic quick-release structure and use method thereof |
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| CN106050596A (en) * | 2016-06-07 | 2016-10-26 | 神华集团有限责任公司 | Plunger metering pump |
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| CN101260832A (en) * | 2008-04-03 | 2008-09-10 | 陈宾 | Hybrid power engine |
| CN102245900A (en) * | 2008-12-08 | 2011-11-16 | 佩尔吉尔拉姆工程师有限公司 | Driving arrangement for a pump or compressor |
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| CN108506183A (en) | 2018-09-07 |
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Application publication date: 20180907 Assignee: Wuhan luotefu Technology Co.,Ltd. Assignor: LOTUSFAIRY POWER TECHNOLOGIES CORP. Contract record no.: X2019420000008 Denomination of invention: Mass-flow multi-plunger piston permanently magnetic metering pump Granted publication date: 20190521 License type: Exclusive License Record date: 20191106 |
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Denomination of invention: Large flow multi plunger permanent magnet metering pump Effective date of registration: 20220316 Granted publication date: 20190521 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: LOTUSFAIRY POWER TECHNOLOGIES Corp. Registration number: Y2022420000064 |
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Date of cancellation: 20230417 Granted publication date: 20190521 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: LOTUSFAIRY POWER TECHNOLOGIES Corp. Registration number: Y2022420000064 |
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Denomination of invention: Large flow multi plunger permanent magnet metering pump Effective date of registration: 20230607 Granted publication date: 20190521 Pledgee: Jiangxia Branch of Hankou Bank Co.,Ltd. Pledgor: LOTUSFAIRY POWER TECHNOLOGIES Corp. Registration number: Y2023420000223 |