CN2594498Y - Magnetic suspension liquid boosting pump - Google Patents
Magnetic suspension liquid boosting pump Download PDFInfo
- Publication number
- CN2594498Y CN2594498Y CN 02285416 CN02285416U CN2594498Y CN 2594498 Y CN2594498 Y CN 2594498Y CN 02285416 CN02285416 CN 02285416 CN 02285416 U CN02285416 U CN 02285416U CN 2594498 Y CN2594498 Y CN 2594498Y
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Abstract
The utility model relates to equipment which enhances liquid pressure in the centrifuge field of a high-speed rotation rotor in magnetic suspension and performs the operation of pressurization by converting dynamic energy into pressure energy through a stagnation pipeline, particularly a magnetic suspension liquid boosting pump which is composed of an upper magnetic support, a rotor subassembly, a material pipe subassembly and systems which provide motive power, safety and the effects of loss reduction and efficiency enhancement, such as an external sleeve cylinder, an intermediate frequency power supply, a motor, a vacuum pump, etc. The pump has the advantages of little loss, high efficiency (above 60%), compact structure and large single-stage boosting (which can be more than 10Mpa), and can be widely used for farmland drainage and irrigation, urban water supply, heat power plants, oil-extraction plants, oil fields, oil transportation pipelines, chemical plants, mining, nuclear electric power generation, hydraulic jet propulsion of boats, liquid fuel feed for rockets, etc.
Description
Technical field
The utility model belong to a kind of in magnetic suspension high speed rotor centrifugal field fluid pressure increase and kinetic energy be converted into the further equipment of supercharging of pressure by the stagnation pipeline, be specifically related to a kind of magnetic suspension liquid booster pump.
Background technique
Having many uses of pump, farmland discharging-irrigating, town water supply, thermoelectricity plant, oil refinery, oil field, petroleum pipeline, chemical plant, Iron And Steel Plant, mining and shipbuilding industry, nuclear power generation, ships and light boats hydraulic jet propulsion, katergol supply etc. all need liquid pump.The output of pump is only second to motor in the world at present, and the electric weight that is consumed surpasses 20% of gross generation.
The kind of pump is a lot, apply mode according to energy and generally be divided into two big classes, energy puts on liquid continuously and is the driving type pump with what kinetic energy was converted into pressure, and energy is positive displacement pump by putting on one or several moving boundaries some sealings, the full of liquid space by the direct supercharging of periodically-varied volume.Because structure is different and the active force different in kind, driving type pump and positive displacement pump have many kinds again.In general, driving type pump specific volume formula pump delivery pressure is stable, and long working life is used more extensively in various research and production activities.
Centrifugal pump is the most frequently used driving type pump.Its main feature is with some impellers on the rotary disk energy to be put on liquid continuously to reach the purpose of supercharging, generally will just can reach high pressure by many levels.The multistage pump complex structure, floor space is big.Because the loss of the hydraulics in flow field and the runner, a part of liquid leaked the factors such as frictional loss between mechanical loss such as volumetric loss, bearing and the motive sealing friction of rotary disk and rotary disk and liquid, made the total efficiency of centrifugal pump not really high.
Rotary jet pump is a kind of high-pressure service pump, and liquid guide flow booster and speed-increasing in the high speed rotating cylinder is placed on the fixing mouth of pipe that gathers materials near place, side one in the rotating cylinder, collect highly pressurised liquid, and is pressure with kinetic energy stagnation, makes that fluid pressure increases once more in the aggregate pipe.Its structure is the simplest in present high-pressure service pump, and single-stage just can reach high pressure, and its volume is little, and it is low to consume energy.Motive sealing is easy to realize in low voltage side.But because hydraulicss such as the vortex loss that the bump between mechanical losses such as bearing and motive sealing friction, the aerial frictional loss of high speed drum surface, the interior liquid stream of rotating cylinder and fixed block produces only can reach about 50% the total efficiency of pump.When having bubble in the rotating cylinder, the delivery pressure of pump also can reduce, and pressure can be because of bubble quantity and bubble, size is different with the elimination situation produces fluctuation, if when bubble breaks suddenly on the solid part surface, also can produce mechanical shock and destruction.
Summary of the invention
The purpose of this utility model is to provide a kind of compact structure, efficient height, and one-level just can reach the magnetic suspension liquid booster pump of high pressure.
The technical solution of the utility model is as follows: the magnetic suspension liquid booster pump is partly formed by four: the supporting of (1) upper magnetic; (2) rotor assembly; (3) material pipe assembly; (4) outer sleeve, medium-frequency power and motor, vacuum pump etc.
The upper magnetic supporting comprises: the annular magnetic steel that is loaded on the axial magnetized on the non magnetic magnet steel seat flange; Be positioned at the preceding magnetic guiding loop of magnet steel lower end, preceding magnetic guiding loop is coaxial with vertical rotor; Magnetic guiding loop is contained on the rotor upper end cap coaxially after the ferromagnetism; The axisymmetrical magnetic field that annular magnetic steel is set up, by the back magnetic guiding loop rotor endcap is produced attraction force, both uninstalled the part gravity of rotor, also guaranteed the radial rigidity of upper support, that is guaranteed to compensate for the ability of rotor with respect to the angular variation of lower support for lower support.Magnetic flux between the magnetic pole of magnet steel forms closed circuit by preceding magnetic guiding loop and back magnetic guiding loop.
For the bigger magnetic suspension liquid booster pump of rotor weight, only not enough with a cover magnetic circuit relieving capacity, the upper magnetic supporting also need increase another set of auxiliary magnetic circuit, and each element of auxiliary magnetic circuit all and rotor coaxial.The auxiliary magnetic circuit of upper magnetic supporting is contained in magnetic guiding loop below behind the main magnetic circuit, and auxiliary magnetic circuit comprises: auxiliary back magnetic guiding loop is fixed on the rotor upper end cap, and is coaxial with the back magnetic guiding loop; The auxiliary magnet steel of the annular of axial magnetized is contained on the outer material pipe; In the upper end portion of auxiliary magnet steel, magnetic guiding loop before configuration is auxiliary.Auxiliary magnet steel is before auxiliary below the magnetic guiding loop, be installed on the auxiliary magnet steel seat, have and the opposite polarity polarity of main magnet steel, it produces magnetic interaction with auxiliary back magnetic guiding loop, give the rotor buoyancy, the radial rigidity of rotor also improves because of the interaction of auxiliary back magnetic guiding loop and auxiliary cylindrical magnet steel.Auxiliary magnet steel seat is installed on the outer material pipe of material pipe assembly.
Rotor assembly has the vertical rotating shaft line, and it is made up of the hollow cylindrical rotating cylinder that two radius differences interconnect, and by the supporting of lower shaft nest, last rotating cylinder radius is big by motor shaft, and following rotating cylinder radius is little; The magnetic force of upper magnetic supporting makes the rotor come-up, the ball bearing of motor, top mechanical positioner and upper magnetic supporting make it keep the rotor plumbness, the bottom ball bearing is bearing in the ball-and-socket, is full of lubricant oil in the ball-and-socket, the diameter of sphere and ball-and-socket should equate or ball big slightly.The ball bearing of upper magnetic supporting and motor lower portion makes rotor that enough radial rigidities and antijamming capability be arranged, with the rotor smooth running that keeps floating.Can also on the ball bearing sphere of high hardness, be carved with spiral chute, rotor is produced certain buoyancy.For the restrict rotor amplitude, absorb the rotor oscillation energy and avoid rotor with the direct bump between outer sleeve, increased limit stoper between material pipe and rotor outside.
Pass the rotor upper end cap fixed material pipe assembly of packing into, what constitute material pipe assembly is feeder sleeve (interior pipe) and the aggregate pipe (outer tube) that disposes concentrically with respect to one another, two material pipes are the font of falling T, the center line and the rotor axis of vertical section part overlap, the center of horizontal segment is dropped on the axis of rotor, the aggregate pipe horizontal segment is made flat (vertical-direction length much smaller than substantially horizontal) and the thin shape in middle thick two, be streamlined; Have the import relative on it with the rotor sense of rotation.Two ends of feeder sleeve horizontal segment also have the outlet relative with the rotor sense of rotation, and from the rotor axis distance dependent, aggregate pipe inlet and feeder sleeve outlet are separated by the horizontal annular baffle plate liquid level position with inlet in the rotating cylinder.
Outer sleeve should have certain thickness, can play a protective role to external world; It is a Sealing, and inner chamber vacuumizes; Wall is provided with interlayer, can lead to cooling water pump is cooled off.Motor is vertical interior cold asynchronous motor, but motor reel has change slightly, is fixed together with following rotating cylinder above it, is ball bearing below.Motor housing is fixed on the electric machine support, all is contained in the outer sleeve.Motor is by the medium-frequency power power supply that is contained in the outer sleeve outside, and vacuum pump and vacuum measuring instrument also are contained in the outer sleeve outside.
Description of drawings
Fig. 1 is the structural representation of magnetic suspension liquid booster pump;
Fig. 2 is the upper magnetic supporting schematic representation of single magnet steel system magnetic suspension liquid booster pump;
Fig. 3 is the upper magnetic supporting schematic representation of magnetic suspension liquid booster pump;
Fig. 4 is the upper magnetic supporting schematic representation of two magnet steel systems magnetic suspension liquid booster pump;
But Fig. 5 is the magnetic suspension liquid booster pump upper magnetic supporting schematic representation of band rotating ring centering body.：1. 2. 3.4. 5. 6.7. 8. 9.10. 11. ( ) 12.13. ( ) 14. 15.16. 17. 18.19. 20. 21.22. 23. 24.25. 26. 27.28. 29. 30.31. 32. 33.34. 35. 36.37. 38. 39.40. 41. 42.43. 44.
Embodiment
The single magnet steel of embodiment 1. system magnetic suspension liquid booster pump
As shown in Figure 1, 2, the upper magnetic supporting comprises belt magnet steel 2, preceding magnetic guiding loop 3 and the back magnetic guiding loop 5 of axial magnetized.Static belt magnet steel 2 is installed on the flange of outer sleeve 4, and there is annular space 31 between the outer sleeve flange, magnet steel 2 can be moved on horizontal plane, regulate for carrying out centering, the spacing watt shape piece 35 of respective thickness is installed in gap 31, a magnet steel and a watt shape piece are pressed on the flange, and fixing with screw 34 in this position; Preceding magnetic guiding loop 3 also is installed on the fitting surface 32 of nonmagnetic outer sleeve 4 flanges, and it and belt magnet steel 2 join; Ferromagnetic back magnetic guiding loop 5 is coaxial with rotor upper end cap 6, and becomes rigid connection, surrounds the outer tube of material pipe assembly 1, and gapped therebetween, it presses close to (but not contacting) rotor outer sleeve end face.The axisymmetrical magnetic field that the magnet steel 2 that goes in ring is set up produces attraction force by 5 pairs of rotor upper end caps of back magnetic guiding loop 6, makes the rotor come-up.
Rotor assembly has the vertical rotating shaft line, and it comprises rotor upper end cap 6, last rotating cylinder 11, following rotating cylinder 13 and motor shaft 19 etc.Last rotating cylinder 11 radiuses are big, following rotating cylinder 1 radius is little, the hollow cylindrical cylindrical shell that two radius differences that both formations interconnect, same spin axis is arranged interconnect, rotating cylinder is made by high-strength material up and down, the last rotating cylinder resin layer 12 that all right fastening one deck in last rotating cylinder 11 outsides is reinforced by high tensile strength fibrous material.One annular plate washer 27 is installed between last rotating cylinder 11 and the following rotating cylinder 13, and annular plate washer 27 has a center hole, and periphery has a plurality of apertures, annular plate washer 27 and up and down rotating cylinder same spin axis is arranged.The upper end of motor shaft 19 is fixed with following rotating cylinder 13, and the lower end of motor shaft 19 is a ball bearing 25, and rotor is bearing in the ball-and-socket 26 by the ball bearing 25 of motor shaft 19.The selflubricating ball bearing 14 of spacing usefulness separates rotor upper cover plate 6 and outer sleeve 4 end faces, can directly not contact with outer sleeve 4 end faces with preventing rotor.
Material pipe assembly 1 is an inverted T-shape, is made of the inside and outside two tubes that disposes concentrically with respect to one another, comprising: feeder sleeve vertical section 15, feeder sleeve horizontal segment 17, aggregate pipe vertical section 16 and aggregate pipe horizontal segment 18.Feeder sleeve horizontal segment 17 is among the little following rotating cylinder 13 of diameter, and aggregate pipe horizontal segment 18 is among the big last rotating cylinder 11 of diameter, and all to the axis bilateral symmetry, but the opening direction at two end part is opposite.Feeder sleeve horizontal segment 17, aggregate pipe horizontal segment 18 all make flat, and the thin shape in middle thick two, are streamlined.The sidewall that two mouths that gather materials of two inlets on the feeder sleeve horizontal segment 17 and aggregate pipe horizontal segment 18 lay respectively at down rotating cylinder 13 and last rotating cylinder 11 all faces toward the rotor sense of rotation nearby.Inlet 42 is arranged at the top of feeder sleeve vertical section 15, and inlet 43 is arranged at the top of aggregate pipe vertical section 16.Material pipe assembly 1 does not contact with rotor assembly, and with outer sleeve 4 alignment is arranged.
Outer sleeve 4 is made by Nonferromugnetic material, and wall is provided with interlayer, can lead to cooling water pump is cooled off, and outer sleeve 4 upsides are equipped with vacuum orifice 29, and its downside is equipped with sewage draining exit 30.Outer sleeve 4 and upper cylinder 44 join, and the centre is placed with seal ring 28, to guarantee system sealing.Rotor is by cold motoring in vertical.Motor is made up of ball bearing 24, shell 20, rotor 21, motor stator 22, is installed on the bearing 23.
Shown in Fig. 1,3,4, embodiment 2 and embodiment's 1 main difference are to have added auxiliary magnetic circuit on the basis that single magnet steel system upper magnetic supports, auxiliary magnetic circuit be positioned at rotor upper end cap 6 below, the polarity of auxiliary magnet steel 9 of the annular of axial magnetized and top annular main magnet steel 2 is opposite, coaxial, but diameter is little many, and its magnetic action has increased the buoyancy of rotor upper end cap.
Auxiliary preceding magnetic guiding loop 8 in the auxiliary magnetic circuit is fixed on the aggregate pipe vertical section 16, and auxiliary back magnetic guiding loop 7 is ferromagnetic, is fixed on the rotor upper end cap 6, and is coaxial with main back magnetic guiding loop 5; The axial magnet steel 9 of auxiliary cylindrical is contained on the auxiliary magnet steel seat 10, and auxiliary magnet steel seat 10 is installed on the aggregate pipe vertical section 16, and auxiliary magnet steel 9 produces magnetic interaction with auxiliary back magnetic guiding loop 7, and has and the opposed polarity of main magnet steel 2 polarity.Magnetic guiding loop 8 before the configuration of the end of auxiliary magnet steel 9 is auxiliary assists forward and backward magnetic guiding loop 8 and 7 coaxial, leans on nearerly, but does not contact, and has the gap between their cyclic lug all the time.The part of rotor upper cover plate 6 and outer sleeve 4 is installed the selflubricating ball bearing 14 of spacing usefulness, avoids rotor directly to contact with outer sleeve 4 end faces, and ball bearing 14 is placed on the bearing bracket stand 33, and their contact surface is smooth and wear-resisting; Bearing bracket stand 33 be fixed on the aggregate pipe vertical section 16 and aggregate pipe vertical section 16 coaxial; 16 of selflubricating ball bearing 14 and aggregate pipe vertical sections have micro-gap, can be very trippingly in level or Vertical direction minute movement.
In this pump, the radial rigidity of upper bearing relies on auxiliary back magnetic guiding loop 7 and auxiliary cylindrical magnet steel 9 and improves.It also can partly shed the load that is added to a nest by rotor weight to the active force of rotor, has reduced the frictional force in the bearing and the wear extent of bearing parts simultaneously.
As shown in Figure 5, the ball bearing 14 that magnetic suspension liquid booster pump rotor and outer sleeve are 4 is limit stoper axially and radially, can satisfy the axial limiting requirement, because of radially spacing requirement height, can add one in addition and be fixed on the aggregate pipe vertical section 16 and have the more accurate auxiliary radially limit stoper of relative gap with the rotor upper end cap, with the restrict rotor amplitude with absorb the rotor oscillation energy.
Auxiliary limit stoper is housed on aggregate pipe vertical section 16, wherein but but rotating ring 36 is contained on the disc type rotating seat 39, but disc type rotating seat 39 is contained on the aggregate pipe vertical section 16, but rotating ring 36 is around aggregate pipe vertical section 16, there is the gap between the two, this radial clearance is less than the outer surface of aggregate pipe vertical section 16 and the gap between the ball bearing base inner surface, and when rotor radial vibrates, but rotating ring 36 at first plays corrective function.But but can be used to limit the rotation of rotating ring 36 in the aperture with at least 2 vertical pins of along the circumferential direction arranging 37 insertion rotating rings 36 with respect to axis.But but the diameter of aperture of pin 37 and the internal diameter of rotating ring 36 are installed on the rotating ring 36, but can when suffering impact loading, the suction booster of working make rotating ring 36 have enough radial displacements.But thin-walled liner 38 is installed on the outer surface of rotating ring, is made, for example bronze by antifriction material.Radially but but rotating ring 36 and 39 of rotating seats are equipped with the centering body of band bead 41, but bead 41 contacts with the surface of the taper annular groove 40 of the lower support end of rotating ring 36 radially.These (having 3 at least) but but bead 41 along the circumferential direction be evenly arranged in the conical annular groove 40 and the recess on the disc type rotating seat 39 in the rotating ring underpart.
The working procedure of this pump is as follows:
To vacuumize before the pump startup, make the rotor outside be in vacuum state,, can make the gas in the rotor keep certain pressure because 14 on the ball bearing of rotor and spacing usefulness has micro-gap (or making the motive sealing form).Again by feeder sleeve in a certain amount of (be about normal when operation rotor storing amount 1/3) liquid input rotating cylinder, primer pump then, by low speed to rated speed, liquid in the rotating cylinder is at dirty downward rotating cylinder 13 walls of centrifugal action, cross in the last rotating cylinder 11 that baffle plate 27 enters rotation thereupon, form the hollow cylindrical liquid column.Continuation infeeds liquid in the following rotating cylinder 13 that is rotating, and rotating cylinder all has the hollow cylindrical liquid column up and down.In rotor, liquid is radially being set up very big pressure gradient in the axis rotation, and liquid flows to into aggregate pipe inlet back liquid flowing energy and becomes the pressure energy, and the hydraulic pressure in the fixed aggregate pipe is the static pressure of liquid stream and the combination of dynamic pressure.When fixed inlet stops liquid stream, can be pressure also with liquid flowing energy stagnation, when fluid pressure is greater than feed pressure after the stagnation of feeder sleeve outlet port, can suspend feed, at this moment should open aggregate pipe material taking mouth 43 places immediately cuts down door and gets material, when fluid pressure is less than feed pressure after the stagnation of feeder sleeve outlet port, can continue feed again.Like this, can reach, and keep the dynamic stability of hollow cylindrical liquid column thickness for the balance of getting material.
Upper magnetic is bearing in entire work process and plays an important role, actionless magnet steel 2 and auxiliary magnet steel 9 are except being constrained in the vertical position with rotor, utilize magnetic force between permanent-magnet steel and rotor to uninstall most of weight of rotor for lower bearing 25 simultaneously, even rotor floated, the rotor that floats can be because of the variation of load, the degree of come-up is different, but because the effect of positioning device, rotor and magnet steel 2 or preceding magnetic guiding loop 3 can directly not bump against.Be approximately through pressure increase behind the magnetic suspension liquid booster pump:
Or
In the formula: ρ is a fluid density;
ω is a rotor velocity;
r
aFor liquid collecting pipe import center a point apart from the rotor axis distance;
r
bFor the feeder sleeve export center b of place point apart from the rotor axis distance;
K is that liquid kinetic energy is to pressure energy conversion coefficient, k=1 when not losing.
v
aLiquid collecting pipe import center a point liquid peripheral velocity.
Work as r
a=0.3184 meter, r
a/ r
b=0.5, during k=1 ω=100Hz, for water,
v
a=200 meter per second Δ P=3.5MPa
Work as r
a=0.3184 meter, r
a/ r
b=0.5, during k=1 ω=200Hz, for water,
v
a=400 meter per second Δ P=14MPa
The utility model magnetic suspension liquid booster pump loses less, the efficient height, compact structure, single stage supercharging big (can reach more than the 10Mpa) can be widely used in farmland discharging-irrigating, town water supply, thermoelectricity plant, oil refinery, oil field, petroleum pipeline, chemical plant, mining, nuclear power generation, ships and light boats hydraulic jet propulsion, katergol supply etc.
Claims (8)
1. magnetic suspension liquid booster pump, comprise material pipe assembly (1), outer sleeve (4), upper cylinder (44), motor shaft (19), motor housing (20), motor stator (22), electric machine support (23), it is characterized in that: material pipe assembly (1) is the font of falling T, inside and outside two tubes by configuration concentrically with respect to one another constitutes, comprise feeder sleeve vertical section (15), feeder sleeve horizontal segment (17), aggregate pipe vertical section (16) and aggregate pipe horizontal segment (18), magnet steel (2) and preceding magnetic guiding loop (3) are installed in respectively on the flange of outer sleeve (4), back magnetic guiding loop (5) is coaxial with rotor upper end cap (6), rotor assembly has the vertical rotating shaft line, it comprises upper end cap (6), last rotating cylinder (11), following rotating cylinder (13) and motor shaft (19), motor shaft (19) lower end is ball bearing (25), ball bearing (25) is bearing in the ball-and-socket (26), between last rotating cylinder (11) and the following rotating cylinder (13) ring baffle (27) is installed, between outer sleeve (4) and the upper cylinder (44) seal ring (28) is installed; In the below and the coaxial with it auxiliary magnetic circuit that is provided with of upper end cap (6), it comprises auxiliary back magnetic guiding loop (7), auxiliary preceding magnetic guiding loop (8) and auxiliary magnet steel (9); The top of magnetic guiding loop (7) and coaxial after but rotating ring (36) is installed in and assists with aggregate pipe vertical section (16); Between magnet steel (2) and material pipe assembly (1), be provided with gap (31).
2. magnetic suspension liquid booster pump as claimed in claim 1, it is characterized in that: the auxiliary magnetic circuit of being made up of auxiliary back magnetic guiding loop (7), auxiliary preceding magnetic guiding loop (8) and auxiliary magnet steel (9) is installed on the auxiliary magnet steel seat (10), and auxiliary magnet steel (9) is opposite with magnet steel (2) polarity.
3. magnetic suspension liquid booster pump as claimed in claim 1 is characterized in that: but rotating ring (36) but the below is provided with rotating seat (39), but rotating seat (39) is installed in that aggregate pipe vertical section (16) is gone up and is coaxial with it.
4: magnetic suspension liquid booster pump as claimed in claim 1 is characterized in that: feeder sleeve horizontal segment (17) and aggregate pipe horizontal segment (18) are made flat, thin ends and thick middle streamlined, and be opposite to axis symmetry and both ends open direction.
5. magnetic suspension liquid booster pump as claimed in claim 1 is characterized in that: spacing watt shape piece (35) is installed in gap (31).
6. magnetic suspension liquid booster pump as claimed in claim 1 is characterized in that: the wall of outer sleeve (4) is provided with interlayer, is provided with vacuum orifice (29) at the upside of outer sleeve (4), is provided with sewage draining exit (30) at the downside of outer sleeve (4).
7. magnetic suspension liquid booster pump as claimed in claim 1 is characterized in that: ring baffle (27) has center hole, and its periphery has a plurality of apertures and has same spin axis with last rotating cylinder (11), following rotating cylinder (13).
8. magnetic suspension liquid booster pump as claimed in claim 1 is characterized in that: go up rotating cylinder (11) the fastening one deck fiber reinforced resin layer of outer wall (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285416 CN2594498Y (en) | 2002-11-13 | 2002-11-13 | Magnetic suspension liquid boosting pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285416 CN2594498Y (en) | 2002-11-13 | 2002-11-13 | Magnetic suspension liquid boosting pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2594498Y true CN2594498Y (en) | 2003-12-24 |
Family
ID=33746437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02285416 Expired - Fee Related CN2594498Y (en) | 2002-11-13 | 2002-11-13 | Magnetic suspension liquid boosting pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2594498Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968057A (en) * | 2010-10-19 | 2011-02-09 | 江苏驰翰科技有限公司 | Multifunctional integrated valve pump |
| CN101240757B (en) * | 2007-12-28 | 2011-06-01 | 中国航天科技集团公司第六研究院第十一研究所 | Heavy caliber asymmetric layout swinging hose |
| CN103093835A (en) * | 2013-01-25 | 2013-05-08 | 西安交通大学 | Fast ignition target fuel layering device based on fluid magnetic suspension and fast ignition target fuel layering method based on fluid magnetic suspension |
| CN103161740A (en) * | 2011-12-08 | 2013-06-19 | 株式会社岛津制作所 | Magnetic levitation type vacuum pump and magnetic levitation device |
| CN110985402A (en) * | 2019-12-20 | 2020-04-10 | 湖南天一奥星泵业有限公司 | Small-flow ultrahigh-lift pitot tube pump |
-
2002
- 2002-11-13 CN CN 02285416 patent/CN2594498Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240757B (en) * | 2007-12-28 | 2011-06-01 | 中国航天科技集团公司第六研究院第十一研究所 | Heavy caliber asymmetric layout swinging hose |
| CN101968057A (en) * | 2010-10-19 | 2011-02-09 | 江苏驰翰科技有限公司 | Multifunctional integrated valve pump |
| CN101968057B (en) * | 2010-10-19 | 2011-12-21 | 江苏驰翰科技有限公司 | Multifunctional integrated valve pump |
| CN103161740A (en) * | 2011-12-08 | 2013-06-19 | 株式会社岛津制作所 | Magnetic levitation type vacuum pump and magnetic levitation device |
| CN103161740B (en) * | 2011-12-08 | 2016-01-13 | 株式会社岛津制作所 | Magnetic suspension formula vacuum pump and magnetic levitation device |
| CN103093835A (en) * | 2013-01-25 | 2013-05-08 | 西安交通大学 | Fast ignition target fuel layering device based on fluid magnetic suspension and fast ignition target fuel layering method based on fluid magnetic suspension |
| CN103093835B (en) * | 2013-01-25 | 2015-05-13 | 西安交通大学 | Fast ignition target fuel layering device based on fluid magnetic suspension and fast ignition target fuel layering method based on fluid magnetic suspension |
| CN110985402A (en) * | 2019-12-20 | 2020-04-10 | 湖南天一奥星泵业有限公司 | Small-flow ultrahigh-lift pitot tube pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |