CN101532501B - Improved magnetic pump - Google Patents
Improved magnetic pump Download PDFInfo
- Publication number
- CN101532501B CN101532501B CN2009100148101A CN200910014810A CN101532501B CN 101532501 B CN101532501 B CN 101532501B CN 2009100148101 A CN2009100148101 A CN 2009100148101A CN 200910014810 A CN200910014810 A CN 200910014810A CN 101532501 B CN101532501 B CN 101532501B
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- separation sleeve
- sleeve
- pump
- annular cavity
- communicated
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Abstract
The invention relates to an improved magnetic pump, a separation sleeve is provided with an annular cavity path consisting of an internal sleeve and an external sleeve; the annular cavity path is horizontally provided with two clapboards, one end of the two clapboards is positioned at the open end of the separation sleeve; a clearance is reserved between the other end of the two clapboards and an end cover of the separation sleeve; the two clapboards separate the space of the annular cavity path into three parts, namely upper and lower two semi-annular shape cavities with the same capacity, and one annular cavity between the other end of the clapboards and the end cover; and a water inlet tap and a water outlet tap are arranged on the upper and lower sides of the open end of the separation sleeve respectively and communicate with the two semi-annular shape cavities respectively. On one hand, the pump ensures that cooling water can complete a long enough axial flow distance in the pump without quite high pressure to realize internal cooling of the whole separation sleeve, on the other hand, a cooling water channel does not need to open on the end cover of the separation sleeve, namely the size of the end cover does not need to change.
Description
(1), technical field
The present invention relates to a kind of magnetic drive pump that improves structure.
(2), background technique
During magnetic drive pump work,, cause the separation sleeve between the inner and outer rotors to be in the condition of high temperature because of electromagnetic eddy produces a large amount of heat energy.The long-time too high meeting of temperature causes the separation sleeve expanded by heating, produces contact friction with external rotor, influences external rotor and runs well, even cause the critical component of pump to damage, and influences the normal operation of its sealing and pump.
Notice of authorization number discloses a kind of " magnetic drive pump " for the Chinese utility model patent of CN2526548Y.Its separation sleeve is designed to double-deck hollow structure, and turnover cooling water liquid pipe is set on double-deck hollow separation sleeve.The flow through hollow cavity of described separation sleeve of cooling liquid is implemented cooling to separation sleeve.The major defect of this structure is, the cooling liquid of the hollow cavity of the described separation sleeve of flowing through, and the design flow direction in separation sleeve is liquid inlet pipe → annular chamber and separation sleeve end cap → drain pipe.On the one hand, because the turnover coolant pipe is constructed the opening end that must all design at separation sleeve according to equipment, the cooling liquid that enters the separation sleeve annular housing has a big chunk directly to flow out from drain pipe behind separation sleeve internal layer half-turn after liquid inlet pipe enters, promptly not along the separation sleeve axial flow, do not play effect to the cooling of whole isolated cover, even the pressure of cooling liquid is very high, also some cooling liquid is discharged after only doing circumferential flow, if coolant pressure is low excessively, the cooling effect of whole isolated cover more can not get guaranteeing.On the other hand, owing to need on the separation sleeve end cap, offer cooling passage, certainly will require to thicken this end cap, not only increased manufacture cost, increase that the more important thing is described ending cover thickness can cause it that inconvenience is installed, even needs to change the physical dimension design of whole magnetic drive pump.
(3), summary of the invention
Technical problem to be solved by this invention is, a kind of improved magnetic drive pump is provided, by introducing the part fed sheet of a media separation sleeve inner chamber is implemented the circulation cooling, and by changing separation sleeve sandwich structure, under the situation that does not need high pressure, make the cooling water in the interlayer fully do axial flow, whole section of separation sleeve is implemented effectively cooling, to realize the efficient cooling of magnetic drive pump separation sleeve, prolong the working life of critical component, and improve the sealing effect and the working efficiency of magnetic drive pump.
In order to solve the problems of the technologies described above, the present invention has adopted following technological scheme.
A kind of magnetic drive pump, comprise and have the medium inlet, the pump housing of media outlet and suction chamber, the inner of the pump housing is connected with pump cover, also comprises intermediate support, and rotor axle sleeve and impeller shaft are installed in intermediate support, between internal rotor and the external rotor separation sleeve is installed, it is characterized in that: offer flushed channel on pump cover, this flushed channel is by the media outlet of the cleaning hose connection pump housing, and this flushed channel also is communicated with the inner chamber of rotor axle sleeve by the flushing through hole that is opened on the rotor axle sleeve; Radially flushing hole that on impeller shaft, offers orthogonal setting and communicate and axially flushing hole, wherein, radially flushing hole is communicated with the inner chamber of rotor axle sleeve, and axially flushing hole is communicated with the inner chamber of separation sleeve; Offer refluxing opening on pump cover, the inner chamber of separation sleeve communicates with the suction chamber of the pump housing by this refluxing opening; Wherein separation sleeve has the annular cavity that is made of interior cover and overcoat, two dividing plates have been horizontally disposed with in the described annular cavity, one end of two dividing plates is positioned at the opening end of separation sleeve, leave the gap between the end cap of the other end and separation sleeve, these two dividing plates are separated into three segment spaces with described annular cavity, be two semi-circular an actor's rendering of an operatic tune, the described the other end of dividing plate and annular an actor's rendering of an operatic tune between the end cap up and down that volume equates, the both sides up and down that water inlet tap and water outlet are installed in the opening end of separation sleeve respectively also are communicated with two semi-circular an actor's rendering of an operatic tune respectively.
Good effect of the present invention is: during magnetic drive pump of the present invention running, system self circulation certain amount of fluid is washed cooling to the separation sleeve inner chamber, in time takes away electromagnetic eddy and produces high heat.On the other hand, cooling water flow carries out inner more fully cooling through separation sleeve interlayer annular cavity to separation sleeve.Two kinds of means cooperate makes the separation sleeve temperature all the time can Yin Wendu not too high and expand, and has guaranteed the normal operation of rotor, and has guaranteed the working life of critical component, has also effectively improved the sealing effect and the working efficiency of magnetic drive pump.
The particular design of separation sleeve annular cavity central diaphragm, guaranteed that cooling water does not need very high pressure can finish sufficiently long axial flow distance therein on the one hand, to satisfy the inside cooling of whole isolated cover, on the other hand, needn't on the separation sleeve end cap, offer cooling water passage, promptly needn't change the size of end cap.
(4), description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of separation sleeve of the present invention.
Fig. 3 is the F-F sectional view of Fig. 2.
(5), embodiment
Further specify the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, this example comprises intermediate support 8.One end of intermediate support 8 is connected with bearing housing 3, and the other end is connected with the pump cover 11 and the pump housing 14 from inside to outside in turn.
The outer end that is installed on the transmission shaft 1 in the bearing housing 3 by bearing 2 is used to connect power mechanism, the inner is fixedly connected with external rotor 5, the internal rotor 4 that matches with external rotor 5 is fixed in the inner of impeller shaft 21, and the outer end of impeller shaft 21 penetrates in the pump housing 14 and connects impeller 13.Between internal rotor 4 and the external rotor 5 separation sleeve 9 is installed.
Under dynamic action, transmission shaft 1 drives external rotor 5 and rotates synchronously, rotate synchronously by the coupling of the magnetic force between the latter and the internal rotor 4 drive internal rotor 4, and then drives impeller axle 21 and impeller 13 rotates synchronously, realizes that the power of this magnetic drive pump is imported.
The pump housing 14 the outer end offer the medium inlet 17 that communicates with pump housing suction chamber 15, the media outlet 12 that is opened on the pump housing 14 also communicates with pump housing suction chamber 15.Offer flushed channel 16 on pump cover 11, this flushed channel 16 connects media outlet 12 by cleaning hose 10, and this flushed channel 16 also is communicated with the inner chamber of rotor axle sleeve 6 by the flushing through hole 7 that is opened on the rotor axle sleeve 6.Radially flushing hole 19 that on impeller shaft 21, offers orthogonal setting and communicate and axially flushing hole 20.Wherein, radially flushing hole 19 is communicated with the inner chamber of rotor axle sleeve 6, and axially flushing hole 20 is communicated with the inner chamber of separation sleeve 9.Offer refluxing opening 18 on pump cover 11, the inner chamber of separation sleeve 9 communicates with pump housing suction chamber 15 by this refluxing opening 18.
From the liquid medium that media outlet 12 is introduced, the inner chamber of the flushed channel 16 of flowing through successively, rotor axle sleeve 6 and the inner chamber of separation sleeve 9 are got back to pump housing suction chamber 15 then.Magnetic drive pump when work partially liq medium circulation flows, and plays bearing and 22 coolings of the thrust disc in the device and lubricated effect to impeller shaft 21, and broken belt is not walked the inner and outer rotors electromagnetic eddy and produced and be transmitted to heat on the separation sleeve 9.
Shown in Fig. 2,3, separation sleeve 9 has the annular cavity that is made of interior cover 9-4 and overcoat 9-2, be horizontally disposed with two dividing plate 9-6 in the described annular cavity, the end of two dividing plate 9-6 is positioned at the opening end of separation sleeve 9, leaves the gap between the end cap of the other end and separation sleeve 9.These two dividing plate 9-6 are separated into three segment spaces with described annular cavity, i.e. annular an actor's rendering of an operatic tune 9-7 between two semi-circular an actor's rendering of an operatic tune 9-3, dividing plate 9-6 end points and the end caps up and down that equate of volume.The water inlet tap 9-5 that is used to connect the tap water intake pipe is positioned at the opening end below of separation sleeve 9 and is communicated with semi-circular an actor's rendering of an operatic tune 9-3 of below; The water outlet 9-1 that is used to connect the tap water discharge pipe is positioned at the opening end top of separation sleeve 9 and is communicated with semi-circular an actor's rendering of an operatic tune 9-3 of top.
Be used to cool off the tap water of separation sleeve 9 inside enters separation sleeve 9 interlayers from water inlet tap 9-5 lower half portion, because the effect of dividing plate 9-6 flows to the end cap direction of separation sleeve 9, carry out the transition to upper half part of separation sleeve 9 interlayers and flow from annular an actor's rendering of an operatic tune 9-7, flow out from water outlet 9-1 at last to the opening end direction of separation sleeve 9.
Claims (1)
1. magnetic drive pump, comprise and have medium inlet (17), the pump housing (14) of media outlet (12) and suction chamber (15), the inner of the pump housing (14) is connected with pump cover (11), also comprise intermediate support (8), rotor axle sleeve (6) and impeller shaft (21) are installed in intermediate support (8), between internal rotor (4) and the external rotor (5) separation sleeve (9) is installed, it is characterized in that: on pump cover (11), offer flushed channel (16), this flushed channel (16) is by the media outlet (12) of cleaning hose (10) the connection pump housing (14), and this flushed channel (16) also is communicated with the inner chamber of rotor axle sleeve (6) by the flushing through hole (7) that is opened on the rotor axle sleeve (6); Radially flushing hole (19) that on impeller shaft (21), offers orthogonal setting and communicate and axially flushing hole (20), wherein, radially flushing hole (19) is communicated with the inner chamber of rotor axle sleeve (6), and axially flushing hole (20) is communicated with the inner chamber of separation sleeve (9); Offer refluxing opening (18) on pump cover (11), the inner chamber of separation sleeve (9) communicates with the suction chamber (15) of the pump housing (14) by this refluxing opening (18); Wherein separation sleeve (9) has the annular cavity that is made of interior cover (9-4) and overcoat (9-2), two dividing plates (9-6) have been horizontally disposed with in the described annular cavity, one end of two dividing plates (9-6) is positioned at the opening end of separation sleeve (9), leave the gap between the end cap of the other end and separation sleeve (9), these two dividing plates (9-6) are separated into three segment spaces with described annular cavity, be two semi-circular an actor's rendering of an operatic tune (9-3) up and down that volume equates, the both sides up and down that the described the other end of dividing plate (9-6) and the annular an actor's rendering of an operatic tune (9-7) between the end cap, water inlet tap (9-5) and water outlet (9-1) are installed in the opening end of separation sleeve (9) respectively also are communicated with two semi-circular an actor's rendering of an operatic tune (9-3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100148101A CN101532501B (en) | 2009-04-22 | 2009-04-22 | Improved magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100148101A CN101532501B (en) | 2009-04-22 | 2009-04-22 | Improved magnetic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101532501A CN101532501A (en) | 2009-09-16 |
| CN101532501B true CN101532501B (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100148101A Expired - Fee Related CN101532501B (en) | 2009-04-22 | 2009-04-22 | Improved magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101532501B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410243B (en) * | 2011-12-08 | 2014-03-26 | 无锡市金城泵业制造有限公司 | Particle-resistance structure for sealing turbid water pump |
| CN102444593A (en) * | 2012-01-20 | 2012-05-09 | 扬州伊华科技有限公司 | Magnetic drive pressure-bearing hydrogen circulating fan |
| GB2503276B (en) * | 2012-06-22 | 2019-05-08 | Cummins Ltd | Magnetic coupling with fluid cooled barrier |
| CN103321947A (en) * | 2013-05-08 | 2013-09-25 | 江苏大学 | Mechanical seal structure with cooling flushing function |
| CN105464964B (en) * | 2015-12-31 | 2017-12-01 | 太仓顺达磁力泵科技有限公司 | A kind of transmission pump for solid-liquid mixture conveying |
| 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 |
| CN112228384A (en) * | 2020-09-22 | 2021-01-15 | 安徽银龙泵阀股份有限公司 | Self-sealing type isolation sleeve for magnetic pump |
| CN112664581A (en) * | 2020-11-19 | 2021-04-16 | 宁波诺义信电气设备有限公司 | High-precision spindle connecting sleeve |
| CN113309707B (en) * | 2021-04-12 | 2022-08-02 | 安徽南方化工泵业有限公司 | High-compression-resistance type magnetic pump spacer bush and preparation method thereof |
| CN114776598B (en) * | 2022-04-25 | 2023-11-21 | 瑞希特(浙江)科技股份有限公司 | Anti-crystallization magnetic drive centrifugal pump |
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2009
- 2009-04-22 CN CN2009100148101A patent/CN101532501B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101532501A (en) | 2009-09-16 |
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Granted publication date: 20110330 Termination date: 20200422 |