CN209145900U - A kind of magnetic drive pump Double-layered isolation casing - Google Patents
A kind of magnetic drive pump Double-layered isolation casing Download PDFInfo
- Publication number
- CN209145900U CN209145900U CN201821366105.9U CN201821366105U CN209145900U CN 209145900 U CN209145900 U CN 209145900U CN 201821366105 U CN201821366105 U CN 201821366105U CN 209145900 U CN209145900 U CN 209145900U
- Authority
- CN
- China
- Prior art keywords
- separation sleeve
- layer separation
- internal layer
- gap
- outer layer
- Prior art date
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of magnetic drive pump Double-layered isolation casings, including outer layer separation sleeve and internal layer separation sleeve, inside and outside layer separation sleeve is made of ring flange, cylinder, cylinder bottom, and internal layer separation sleeve is inserted in outer layer separation sleeve, and the ring flange of the ring flange and outer layer separation sleeve of internal layer separation sleeve is close to；The cylinder and cylinder bottom wall thickness of internal layer separation sleeve are 0.4-1.5mm, are gap-matched between inside and outside layer separation sleeve, and the gap between cylinder is 0.01-0.19mm, and the gap between cylinder bottom is 0.01-1mm；The ring flange of outer layer separation sleeve is equipped with leakage monitoring mouth, and the gap between leakage monitoring mouth and inside and outside layer separation sleeve is connected to.Using the utility model, the leakage monitoring function of Double-layered isolation casing was not only guaranteed, but also reduce total wall thickness, and had reduced the magnetic gap between inside and outside magnet rotor, reduce magnet steel dosage, reduce manufacturing cost；Current vortex loss is also reduced simultaneously.
Description
Technical field
The utility model relates to magnetic drive pump fields, more particularly, to a kind of magnetic drive pump Double-layered isolation casing.
Background technique
The seal member of magnetic drive pump is mainly the separation sleeve using static seal structure being fixed on pump cover.Separation sleeve is in
It is a kind of seal closure of shell structure in gap between inside and outside magnet rotor, is the components for realizing No leakage most critical.Magnetic force
The separation sleeve of pump considers Adaptability of medium and temperature tolerance and high intensity, mostly uses high resistivity and again corrosion resistant non magnetic gold greatly
Belong to material manufacture, such as austenitic stainless steel, titanium alloy, Hastelloy.
It is located among the radial clearance of the inside and outside magnet rotor of permanent magnet clutch due to the shell portion in separation sleeve, when electronic
When machine drives pump rotor rotation by magnet coupler, metal distance sleeve body is located in the magnetic field of a sinusoidal alternating, vertical
In inducing eddy current on the section in magnetic line of force direction, and heat, referred to as eddy-current heating are converted by Jiao Er-Lenz's law；Magnetic
The eddy-current heating of power pump will cause certain power loss, and the efficiency of pump reduces, and wall thickness is thicker, and eddy-current loss is bigger, and cooling is bad
When be also possible to cause magnet steel demagnetization failure, separation sleeve to cross cause thermal damage, the vaporization of medium overheat and the phenomena of the failure such as cavitation occur.Institute
To reduce the economy that vortex is not only related to pump operation, be also relate to the reliability of pump operation.Therefore guaranteeing bearing capacity
In the case where separation sleeve wall thickness design it is as thin as possible.
Traditional single layer separation sleeve is when encountering internal bearings and damaging and lead to rotor eccentricity or bulge phenomenon occurs for rotor
When or medium in when entering solid particle, isolation is cased with by the risk of friction damage, and then danger medium is caused to be let out into environment
Dew causes environmental pollution accident or safety accident.With the raising required danger medium security against leakage, it would be desirable to be able to every
The information that separation sleeve has damaged can be detected before thoroughly damaging from set, there was only Double-layered isolation casing and matched leak detection system at present
System can just prevent the non-controllable leakage of danger medium, i.e. isolation is cased with two layers of composition, wherein the second layer still may be used after one layer of damage
Temporarily to seal, medium is prevented to reveal, simultaneously because medium is entered between two layers causes pressure change, it can be to biography
Sensor issues the leakage of pressure signal perception medium, so that it may timely handling failure.
But gap is larger between two layers of existing Double-layered isolation casing, using independent bearing structure, so that inside and outside separation sleeve
Overall thickness reaches 2 times of single separation sleeve.If two layers all uses metal material, being multiplied for eddy-current loss will lead to,
Efficiency significantly reduces.Simultaneously because gap is larger between two layers, thermal resistance is very big, and the eddy-current heating that outer layer generates cannot rely on internal layer
Interior part stream circulatory mediator is cooled down, and is needed to import independent cooling medium between ectonexine and is cooled down, is increased
System complexity and cooling medium consumption.
If two layers all uses nonmetallic materials, since nonmetal isolating sleeve intensity itself is much lower compared with metal, and cause
Isolation sleeve wall thickness is several times of made of metal isolation sleeve wall thickness, and separation sleeve cylinder wall thickness is generally all in 2mm or more；Two layers of separation sleeve is just
Be multiplied wall thickness, causes the magnetic gap between inside and outside magnet rotor to increase exponentially, so that the magnetic force of magnet rotor reduces at double, same
It needs to increase considerably magnet steel dosage under the magnetic torque of sample, manufacturing cost is very high.Therefore use can not monitor magnetic drive pump at present
The Double-layered isolation casing of the nonmetallic materials manufacture of leakage, the overwhelming majority is all the lower single layer separation sleeve of manufacturing cost, is chiefly used in
Light-duty magnetic drive pump and the not high occasion of medium harmfulness.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and a kind of magnetic drive pump Double-layered isolation casing provided,
It is suitable for nonmagnetic metal or non-metallic material simultaneously, has the advantages that wall thickness is small, eddy-current loss is small, leakage can be monitored.
A kind of magnetic drive pump Double-layered isolation casing, including outer layer separation sleeve and internal layer separation sleeve, inside and outside layer separation sleeve is by method
Blue disk, cylinder, cylinder bottom are constituted, which is characterized in that the internal layer separation sleeve is inserted in outer layer separation sleeve, the flange of internal layer separation sleeve
Disk rear ends are bonded with the ring flange inner side end of outer layer separation sleeve, internal layer separation sleeve ring flange outer end face and outer layer separation sleeve
The outer end face of ring flange respectively constitutes the sealing surface of internal layer separation sleeve and the sealing surface of outer layer separation sleeve；
The cylinder wall thickness of the internal layer separation sleeve is 0.4~1.5mm, is gap-matched between inside and outside layer separation sleeve, cylinder
Gap between body is 0.01~0.19mm, and the gap between cylinder bottom is 0.01~1mm；On the ring flange of the outer layer separation sleeve
Equipped with leakage monitoring mouth, the leakage monitoring mouth is connected to by detecting aperture with the gap between inside and outside layer separation sleeve.
Since gap is very small between inside and outside layer, behind the pressure by pump inner cavity, internal layer separation sleeve cylinder body outer wall is just produced
Raw flexible deformation comes on outer layer separation sleeve cylinder inboard wall, is supported by outer layer separation sleeve, is combined together with outer layer separation sleeve
Pressure is born, such internal layer isolation sleeve wall thickness is just not necessarily to be designed according to independent pressure-bearing, and wall thickness can be made very thin.
Separation sleeve after the combination designed in this way, radial overall thickness is smaller than the Double-layered isolation casing designed by independent pressure-bearing to be obtained
More, pressure-bearing is high, and overall thickness is poorer, main because internal layer mainly plays a part of to prevent medium from entering cavity between two layers
If sealing, without pressing the wall thickness of independent pressure-bearing.
Once internal layer separation sleeve is worn because unexpected, leakage medium is initially entered between ectonexine separation sleeve, internal layer isolation
Sleeve body internal and external pressure balance and restore to the original state, inside and outside lamellar spacing also restores to the original state, and leakage medium is by between ectonexine
Clearance flow is to pressure monitoring mouth, so that it may by pressure sensor monitoring to leakage, take timely measure；Meanwhile outer separation sleeve is held
The pressure of the medium leaked, avoids pumped (conveying) medium from being leaked in environment.
The Double-layered isolation casing of the utility model can both use nonmagnetic material, can also use nonmetallic materials.
When using nonmagnetic material, because separation sleeve cylinder wall thickness overall thickness reduces, resistance is larger, and current vortex loss is bright
Aobvious to reduce, Magnetic drive efficiency is higher；Inside and outside layer separation sleeve is close together when working, and the eddy-current heating that outer layer separation sleeve generates can
It to be directly transferred to internal layer separation sleeve, and then is cooled down by the circulatory mediator in internal layer separation sleeve, is independently followed without additional
Ring liquid；Total wall thickness reduces, and inside and outside lamellar spacing is minimum, and the magnetic gap between required inside and outside magnet rotor also can reduce, and magnetic force increases
Greatly, magnet steel dosage reduces and saves expensive magnet steel dosage.Use nonmagnetic material manufacture separation sleeve can with high temperature resistant, and
The high wall thickness of intensity is thin, and magnetic gap is smaller, can save magnet steel dosage.
When using nonmetallic materials, have the advantages that no eddy-current loss, magnet steel dosage it is few, can monitoring leakage.
Gap when the material of internal layer separation sleeve uses nonmagnetic material, between the cylinder of inside and outside layer separation sleeve
It is set as 0.01~0.05mm, the gap between cylinder bottom is 0.01~0.3mm.The material of internal layer separation sleeve can for titanium alloy or
Hastelloy, it is the composite materials such as titanium alloy, glass reinforced plastic, carbon fiber or aramid fiber that cover material, which is isolated, in outer layer.
When separation sleeve uses nonmetallic materials, the gap between the cylinder of inside and outside layer separation sleeve is 0.01~0.19mm,
Gap between cylinder bottom is 0.01~1mm.The material of internal layer separation sleeve can be PEEK and its composite material or fluoroplastics, outer layer
The material of separation sleeve is glass reinforced plastic, carbon fiber or aramid fiber composite material.
Preferably, the outer end face of internal layer separation sleeve ring flange is flushed with the outer end face of outer layer separation sleeve ring flange.
The ring flange outer end face of the internal layer separation sleeve and pump cover end face pass through gasket-like into sealing surface, seal up in pump
Chamber medium；The ring flange outer end face of outer layer separation sleeve by sealant or with pump cover end face by gasket-like at sealing surface, it is close
Seal the pump inner cavity medium revealed after the damage of internal layer separation sleeve.
The technical solution of the utility model had not only guaranteed the leakage monitoring function of Double-layered isolation casing, but also has reduced total wall thickness, and made
Magnetic gap between inside and outside magnet rotor reduces, and magnet steel dosage reduces and saves expensive magnet steel dosage, reduces manufacturing cost；Simultaneously
Reduce the current vortex loss of metal separation sleeve.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of magnetic drive pump Double-layered isolation casing of the utility model；
Fig. 2 is the partial enlarged view of region A in Fig. 1.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in more detail with specific embodiment.
As shown in Figure 1 and Figure 2, a kind of magnetic drive pump Double-layered isolation casing, there is an internal layer separation sleeve 1 and 2 groups of outer layer separation sleeve attach together
With forming, inside and outside layer separation sleeve is made of ring flange, cylinder, cylinder bottom.3 back of internal layer separation sleeve ring flange is isolated with outer layer
The inner face for covering ring flange 4 is close to, by sealant or gasket-like at sealing surface, i.e., the flange thickness of internal layer separation sleeve with
Outer layer separation sleeve concave step depth is identical, so that after interior separation sleeve is packed into, interior separation sleeve outer end face 9 and outer separation sleeve outer end face
8 flush.Outer separation sleeve ring flange 4 is equipped with leakage monitoring mouth 5, and leakage monitoring mouth 5 passes through the detection in outer separation sleeve ring flange 4
Gap between aperture 7 and inside and outside layer separation sleeve communicates, for coupling pressure monitoring instrument.Double-layered isolation casing is passed through with bolt
It is fixed after bolt hole 6 on outer layer separation sleeve ring flange 4 with magnetic drive pump, interior separation sleeve outer end face 9 divides with outer separation sleeve outer end face 8
It is sealed not between magnetic drive pump by gasket.
In the present embodiment, the material of internal layer separation sleeve selects nonmagnetic material-titanium alloy.After the assembly is completed, internal layer
Gap between separation sleeve cylinder 11 and outer layer separation sleeve cylinder 21 under initial create is 0.01-0.05mm, inside and outside layer isolation
In initial, there are the gaps of 0.01-0.3mm under natural conditions at the cylinder bottom of set.Internal layer separation sleeve cylinder 11 with a thickness of 0.4-
1.5mm, the thickness and other portion sizes of outer layer separation sleeve cylinder 21 are calculated by design pressure to be determined, can independently bear separation sleeve
Cavity pressure.Internal layer separation sleeve 1 mainly plays a part of to prevent medium from entering cavity between two layers, mainly seals, nothing
It need to be by the wall thickness of independent pressure-bearing.Due to gap very little between inside and outside layer, behind the pressure by pump inner cavity, internal layer distance sleeve
11 outer wall of body just generates flexible deformation and comes on 21 inner wall of outer layer separation sleeve cylinder, is supported by outer layer separation sleeve 2, with outer layer
Separation sleeve 2 is combined together bears pressure.
After inside and outside layer separation sleeve is respectively prepared, internal layer separation sleeve 1 is nested into the inner hole of outer layer separation sleeve 2, until outer layer
4 rear ends of separation sleeve ring flange are close to 3 inner face of internal layer separation sleeve ring flange.Once internal layer separation sleeve 1 is ground because of accident
Broken, leakage medium initially enters between inside and outside layer separation sleeve, the inside and outside pressure balance of internal layer distance sleeve and restore to the original state, it is interior,
Outer lamellar spacing also restores to the original state, and reveals medium by the gap between inside and outside layer and flows to pressure monitoring mouth 5, so that it may pass through pressure
Force snesor monitors to reveal, and takes timely measure；Meanwhile outer layer separation sleeve 2 bears the pressure of the medium of leakage, avoids conveying
Medium is leaked in environment.
If the material of inside and outside layer separation sleeve selects nonmetallic materials, inside, the cylinder of outer layer separation sleeve and cylinder bottom gap model
It encloses to do and suitably relax.The cylinder gap of ectonexine separation sleeve is 0.01-0.19mm, and cylinder bottom gap is 0.01-1mm.
The foregoing is merely the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Made any modification, both is within the protection scope of the present invention.
Claims (5)
1. a kind of magnetic drive pump Double-layered isolation casing, including outer layer separation sleeve and internal layer separation sleeve, inside and outside layer separation sleeve is by flange
Disk, cylinder, cylinder bottom are constituted, which is characterized in that the internal layer separation sleeve is inserted in outer layer separation sleeve, the ring flange of internal layer separation sleeve
Rear ends are bonded with the ring flange inner side end of outer layer separation sleeve, in the flange thickness and outer layer separation sleeve of internal layer separation sleeve
Recessed step depth is identical, and the outer end face of internal layer separation sleeve ring flange is flushed with the outer end face of outer layer separation sleeve ring flange；Internal layer every
The outer end face of outer end face and outer layer separation sleeve ring flange from set ring flange respectively constitutes the sealing surface and outer layer of internal layer separation sleeve
The sealing surface of separation sleeve；
The cylinder wall thickness of the internal layer separation sleeve is 0.4~1.5mm, is gap-matched between inside and outside layer separation sleeve, cylinder it
Between gap be 0.01~0.19mm, the gap between cylinder bottom is 0.01~1mm；The ring flange of the outer layer separation sleeve is equipped with
Leakage monitoring mouth, the leakage monitoring mouth are connected to by detecting aperture with the gap between inside and outside layer separation sleeve.
2. magnetic drive pump Double-layered isolation casing according to claim 1, which is characterized in that the material of the internal layer separation sleeve is
When nonmagnetic material, the gap between the cylinder of inside and outside layer separation sleeve is 0.01~0.05mm, and the gap between cylinder bottom is
0.01~0.3mm.
3. magnetic drive pump Double-layered isolation casing according to claim 2, which is characterized in that the nonmagnetic material is
Titanium alloy or Hastelloy.
4. magnetic drive pump Double-layered isolation casing according to claim 2, which is characterized in that the material of outer layer separation sleeve is titanium conjunction
Gold, glass reinforced plastic, carbon fiber or aramid fiber composite material.
5. magnetic drive pump Double-layered isolation casing according to claim 1, which is characterized in that the material of internal layer separation sleeve is PEEK
And its composite material, fluoroplastics, the material of outer layer separation sleeve are glass reinforced plastic, carbon fiber or aramid fiber composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366105.9U CN209145900U (en) | 2018-08-23 | 2018-08-23 | A kind of magnetic drive pump Double-layered isolation casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821366105.9U CN209145900U (en) | 2018-08-23 | 2018-08-23 | A kind of magnetic drive pump Double-layered isolation casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209145900U true CN209145900U (en) | 2019-07-23 |
Family
ID=67266481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821366105.9U Active CN209145900U (en) | 2018-08-23 | 2018-08-23 | A kind of magnetic drive pump Double-layered isolation casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209145900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637050A (en) * | 2020-05-14 | 2020-09-08 | 丹东克隆先锋泵业有限公司 | Double-layer isolation sleeve device of magnetic pump |
-
2018
- 2018-08-23 CN CN201821366105.9U patent/CN209145900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637050A (en) * | 2020-05-14 | 2020-09-08 | 丹东克隆先锋泵业有限公司 | Double-layer isolation sleeve device of magnetic pump |
| CN111637050B (en) * | 2020-05-14 | 2024-05-07 | 丹东克隆先锋泵业有限公司 | Double-layer isolation sleeve device of magnetic pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6293772B1 (en) | Containment member for a magnetic-drive centrifugal pump | |
| CN202073797U (en) | Magnetic force driving pump | |
| JPS63170581A (en) | Gyromagnetic pump | |
| CN209145900U (en) | A kind of magnetic drive pump Double-layered isolation casing | |
| CN108194374B (en) | Magnetic suspension internal flow type rotor pipeline pump | |
| EP2798222A1 (en) | Rotodynamic pump with electro-magnet coupling inside the impeller | |
| CN205895675U (en) | Novel high -efficient magnetic drive pump is with compound separation sleeve | |
| CN108063514A (en) | A kind of motor sealing structure | |
| CN106168290B (en) | A kind of mechanically-sealing apparatus | |
| CN104154000A (en) | High-efficiency energy-saving containing type magnetic pump | |
| CN210196046U (en) | High-temperature magnetic pump | |
| ITCO20120045A1 (en) | REGGI-MAGNETIC PUSH BEARING, TURBOMACCHINA AND METHOD | |
| US10948380B2 (en) | Composite pipe assembly | |
| CN110939576B (en) | Wear-resistant efficient horizontal centrifugal sand pump and working method thereof | |
| CN202851424U (en) | Separation sleeve for high-temperature and high-pressure resistance fluoroplastic magnetic drive pump and magnetic drive pump | |
| CN213937663U (en) | Spacer sleeve cooling structure of medium-high pressure resistant magnetic transmission fan | |
| CN210531163U (en) | Corrosion-resistant shielding electric pump | |
| CN210829786U (en) | High-pressure magnetic pump | |
| CN210343730U (en) | Non-metal double-layer isolation sleeve for magnetic transmission pump and magnetic transmission pump | |
| CN207907572U (en) | A kind of aviation coolant liquid cold source system | |
| CN105339674A (en) | Corrosion and erosion preventing structure and pump comprising same, and pump manufacturing method and repairing method | |
| CN209875495U (en) | PCL compressor for pipeline | |
| CN208546637U (en) | A kind of lightweight high-temperature steam special flange structure | |
| CN102410241A (en) | Isolating casing for magnetic pumps | |
| CN108131298B (en) | A kind of immersed pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |