CN100513795C - Self-cooling internal axial-flow pump - Google Patents
Self-cooling internal axial-flow pump Download PDFInfo
- Publication number
- CN100513795C CN100513795C CNB200710027122XA CN200710027122A CN100513795C CN 100513795 C CN100513795 C CN 100513795C CN B200710027122X A CNB200710027122X A CN B200710027122XA CN 200710027122 A CN200710027122 A CN 200710027122A CN 100513795 C CN100513795 C CN 100513795C
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- Prior art keywords
- guide sleeve
- air guide
- diversion seat
- pump
- flange plate
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Abstract
The present invention discloses a self-cooling built-in shaft-flow pump. It is composed of pump body whose interior has a cavity chamber, impeller placed in the cavity chamber and motor body. The rotating shaft of said motor body is extended into the pump body and is connected wit impeller. Said pump body is formed from flow guide cover and flow guide seat, said cavity chamber is formed by means of butt-connection of flow guide cover and flow guide seat, on the flow guide cover a fluid inlet is set, on the flow guide seat several flow guide holes are set, the fluid inlet and flow guide holes are respectively communicated with said cavity chamber. Said motor body includes a motor outer shell on which several air holes are set. Said pump can be used for conveying high-temperature high-pressure fluid in a circulating system composed of high-pressure container and pipeline, in the inlet and outlet of pump a pressure difference is produced, at the same time the medium conveyed by said pump can be used for cooling its motor.
Description
Technical field
The present invention relates to a kind of industrial axial-flow pump, particularly a kind of self-cooling internal axial-flow pump that is used for carrying the high pressure-temperature fluid.
Background technique
Domestic industrialization axial-flow pump in the high pressure-temperature FLUID TRANSPORTATION is an open question all the time at present, and difficulty is the harsh conditions of high pressure-temperature, has caused such as sealing problems such as cooling and pressure reduction are little.There is a kind of magnetic drive pump good application to be arranged in the modern technologies in the low-pressure low-temperature occasion, magnetic drive pump is to use modern magnetomechanics principle, utilize the magnetic drives of permanent magnet to realize a kind of new pump of the non contact transmission of moment of torsion, during driven by motor external rotor (being outer steel) assembly rotation just, the effect magnetic line of force by magnetic field passes that separation sleeve drives internal rotor (promptly interior magnet steel) assembly and impeller rotates synchronously, because medium is enclosed in the static separation sleeve, leak the purpose of pumping medium thereby reach not have.This pump can solve the problem of motor cooling.
Yet, when magnetic drive pump is applied in the occasion of high pressure-temperature, to thicken the separation sleeve of magnetic drive pump for the consideration of pressure-bearing problem, separation sleeve is thick more, field decay is big more, has so just caused a large amount of losses of useful horsepower, makes in this high pressure-temperature occasion lower magnetic force pump inefficiency that seems.Therefore expect a kind of can be at the axial-flow pump of the conveying high pressure-temperature fluid of a big flow of internal circulation system high speed, and this pump must be under the situation of high speed rotating can be from cooling, but do not see the successful report that this pump is arranged up to now.
Need to provide a kind of self-cooling internal axial-flow pump to overcome above-mentioned defective for this reason.
Summary of the invention
Purpose of the present invention just provides a kind of self-cooling internal axial-flow pump, it can carry out the conveying of high-temperature, high pressure fluid in a circulatory system that is made of high-pressure bottle and pipeline, entrance and exit at pump produces pressure difference, utilizes the motor of the medium cooling self of carrying simultaneously.
For achieving the above object, the invention provides a kind of self-cooling internal axial-flow pump, this system is made of following technological scheme: this self-cooling internal axial-flow pump by inside be provided with chamber the pump housing, place the impeller of chamber and motor to form, the rotating shaft of motor is stretched in the pump housing and is linked to each other with impeller, the pump housing is made up of air guide sleeve and diversion seat, chamber docks the back by air guide sleeve and forms with diversion seat, air guide sleeve is provided with fluid inlet, the edge of diversion seat is provided with several pod apertures, and fluid inlet and pod apertures communicate with chamber respectively; And motor, it comprises the motor housing which is provided with several air holes.
The fluid cooling motor of pumping by utilizing, thus the pump cooling problem that conveyance fluid produced under the situation of High Temperature High Pressure solved.
Further, the present invention also can comprise following technical characteristics:
The motor body also comprises the bearing of supporting revolving shaft, and bearing is a Nonlubricated bearing.Like this, just not needing provides extra lubricating for bearing.
The center line of pod apertures and the axis of described rotating shaft form greater than the angle of zero degree less than 90 degree, and the true dip direction of pod apertures is identical with the sense of rotation of impeller.Fluid can keep rotation status like this, so that better cooling motor.
Angle between the center line of pod apertures and the axis of rotating shaft is 45 degree.Under this condition, fluid can reach the optimum state to the cooling effect of motor.
Air hole is provided with filter screen.One can prevent that the impurity in the fluid from entering the inside of motor, its two, can prevent to boost and the too fast and producing pressure differential of step-down flattens motor.
Air guide sleeve is connected with the flange that is connected between the diversion seat.Help the sealing of the pump housing like this.
Air guide sleeve comprises the first air guide sleeve flange plate, air guide sleeve bearing ring and the second air guide sleeve flange plate that joins successively, and fluid inlet is opened on the first air guide sleeve flange plate; Diversion seat comprises the first diversion seat flange plate, diversion seat bracing ring and the second diversion seat flange plate that joins successively, and pod apertures is positioned on the edge of the first diversion seat flange plate; The second air guide sleeve flange plate contacts with the first diversion seat flange plate.Can carry like this to impeller enough big chamber is provided.
Motor also comprises stator and the rotor that is enclosed within the rotating shaft, and it is two utmost points, three phase electric machine.But pump has than high rotational speed and bigger lift like this.
It is cylindric that motor housing is, and it comprises upper end cap, stack shell and the lower end cap that links to each other successively, and stator is fixed on the stack shell, and upper end cap links to each other with diversion seat.This motor housing helps the cooling of motor.
Stack shell is made by stainless steel material.The easy heat conduction of stainless steel material so also helps the cooling of motor.
Describe the present invention in detail below in conjunction with accompanying drawing, it illustrates principle of the present invention as the part of this specification by embodiment, and bright other aspects, feature and the advantage thereof of we will become very clear by this detailed description.
Description of drawings
Fig. 1 is the generalized section of a preferred embodiment of self-cooling internal axial-flow pump of the present invention;
Fig. 2 is the generalized section of middle air guide sleeve embodiment illustrated in fig. 1;
Fig. 3 is the generalized section of middle diversion seat embodiment illustrated in fig. 1;
Fig. 4 is that the A of diversion seat shown in Figure 3 is to schematic representation;
Fig. 5 has shown the angle between pod apertures and the rotating shaft;
Fig. 6 has shown the flow direction of fluid in self-cooling internal axial-flow pump of the present invention.
Embodiment
Fig. 1 is the generalized section of a preferred embodiment of self-cooling internal axial-flow pump of the present invention.As shown in the figure, this pump is made up of the pump housing 2 and motor body 3 parts, and the pump housing 2 contains a chamber 12, and an impeller 41 is housed in chamber 12, and the rotating shaft 31 of motor body 3 is stretched in the pump housing 2, impeller 41 be fixed on rotating shaft 31 on; The pump housing 2 is made up of air guide sleeve 21 and diversion seat 22, air guide sleeve 21 is provided with a fluid inlet 201, diversion seat 22 is provided with pod apertures 204, air guide sleeve 21 with after diversion seat 22 docks within it portion formed chamber 12, fluid inlet 201 and pod apertures 204 communicate with chamber 12 respectively; Motor body 3 comprises the bearing 311 and 313 of motor housing 32 and supporting revolving shaft 31, and motor housing 32 is provided with air hole 301, and bearing 311 and 313 is a Nonlubricated bearing.
As shown in Figure 1, motor housing 32 comprises upper end cap 321, stack shell 322 and the lower end cap 323 that links to each other successively, and air hole 301 is all opened on stack shell 322, has 16.Certainly the number of air hole 301 can also can lack than 16 than more than 16 in other embodiments.Stack shell 322 is made by stainless steel material, helps heat conduction like this.The upper end cap 321 of motor housing 32 is fixed together by HEX HEAD CAP SCREWS 501 and whole diversion seat 22.Motor stator 34 also is fixed on the stack shell 322 by the bolt (not shown), and 33 of rotors are enclosed within the rotating shaft 31, and rotor 33 drives rotating shaft 31 and rotates together.One end of rotating shaft 31 places on the lower end cap 323 by bearing 311, and its other end also places on the upper end cap 321 by bearing 313, and passes upper end cap 321 and extend in the pump housing 2.A side that is positioned at the bearing 313 on the upper end cap 321 also is provided with bearing gland 312, and bearing gland 312 is fixed together by sunk screw 505 and upper end cap 321, so just bearing 311 is clipped in the middle to stop bearing 311 to move along rotating shaft 31. Bearing 311 and 313 all is a Nonlubricated bearing, and the present invention does not just need for bearing 311 and 313 provides extra lubricating like this, thereby realizes unlubricated purpose.In addition, the power supply lead wire 323 of motor body 3 passes motor housing 32 and links to each other with the power supply of outside.
As shown in Figure 1, impeller 41 is enclosed within rotating shaft 31 and stretches on the termination of that end in the chamber 12, and by pressing impeller screw 411 to be fixed on this termination.Also be provided with positioning key 412 between impeller 41 and the rotating shaft 31, prevent to produce relative rotation between impeller 41 and the rotating shaft 31.
Fig. 2 is the generalized section of air guide sleeve 21 in the foregoing description.As shown in the figure, air guide sleeve 21 is made up of the first air guide sleeve flange plate 211, air guide sleeve bracing ring 212 and second flange plate 213 that link to each other successively, and the three is fixed together by the mode of welding.The outer surface of the first air guide sleeve flange plate 211 is provided with floor 2111, to increase the intensity of this flange plate.Fluid inlet 201 be located at the first air guide sleeve flange plate 211 in the heart.The middle part of the second air guide sleeve flange plate 213 forms cavity, is used for forming the part of chamber 12, in addition, also is provided with four bolts hole 202 on the outer ledge of this dish, and four holes be evenly distributed in this dish around.Air guide sleeve bracing ring 212 is sandwiched in the centre of the first air guide sleeve flange plate 211 and the second air guide sleeve flange plate 213.Air guide sleeve bracing ring 212 also is a hollow, and the cavity branch of this hollow space and the second air guide sleeve flange plate 213 connects, and two-part lump together the first portion's cavity 203 that just forms chamber 12 like this, and fluid inlet 201 communicates with first portion cavity 203.The purpose that air guide sleeve bracing ring 212 is set just provides enough big space for impeller 41.Certainly, in other embodiments, can not establish bracing ring, but directly on flange plate, form the cavity of impeller 41 activities.
Fig. 3 is diversion seat 22 generalized sections in the foregoing description.As shown in the figure, diversion seat 22 is made up of the first diversion seat flange plate 221, diversion seat bracing ring 222 and second flange plate 223 that link to each other successively, and also is to be fixed together by welding manner between the three.Four bolts hole 205 are also arranged on the outer ledge of the first diversion seat flange plate 221.When diversion seat 22 and air guide sleeve 21 lump together, the bolt hole 205 of the first diversion seat flange plate 221 can be corresponding one by one with bolt hole 202 on the second air guide sleeve flange plate 213, and connect mutually, air guide sleeve 21 and diversion seat 22 are fixed together with regard to available hex head bolt (not showing among the figure) like this.In addition, air guide sleeve 21 and diversion seat 22 adopt the flange ways of connecting to help to increase the intensity of the pump housing 2, and help sealing.The middle part of the first diversion seat flange plate 221 also is provided with cavity 206, and cavity 206 is horn-like, and its maximum cross section is towards air guide sleeve 21, and cavity 206 lumps together with first portion's cavity 203 and just form chamber 12, and impeller 41 can rotate in chamber 12.Also has pod apertures 204 on the outer ledge of the first diversion seat flange plate 221, pod apertures 204 is evenly distributed on the outer ledge of flange plate 221, when diversion seat 22 and air guide sleeve 21 lumped together, pod apertures 204 just communicated with first portion's cavity 203 of chamber 12.The center of the second diversion seat flange plate 223 is provided with the axis hole 207 that allows rotating shaft 41 to pass, and then is provided with four screw holes 208 on its outer ledge, and these four screw holes are evenly distributed on the outer ledge of the second diversion seat flange plate 223.The second diversion seat flange plate 223 is fixed together by the upper end cap 321 of screw and motor housing 32, and the whole like this pump housing 2 just can be secured together with motor.
As shown in Figure 4, the upper and lower surface out of plumb of the center line 601 of pod apertures 204 and the first diversion seat flange plate 221, but form 45 angle with its center line 602, promptly with the center line of rotating shaft 31 in angle of 45 degrees, as shown in Figure 5.The direction that pod apertures 204 tilts is identical with the direction that impeller rotates, promptly B shown in the figure to.Such one is to reduce the drag losses of fluid in flow process, the 2nd, can strengthen fluid in motor housing 32 lip-deep heat exchange effects.Certainly, in other embodiments, the angle between the center line of pod apertures and the rotating shaft 31 can also can be spent less than 45 greater than 45 degree.
Fig. 6 for fluid in the present invention flow to schematic representation.As shown in the figure, fluid is sucked into the chamber 12 from fluid inlet 201 under impeller 41 rotations, and rotates with impeller 41 in chamber 12, is thrown to the outer edge of impeller 41 then again, flows out chamber 12 at last from pod apertures 202.The fluid that flows out the pump housing 3 is again from the surface flow mistake of motor housing, and fluid can also enter motor from the air hole on the stack shell 322 301.So just can come cooling motor 3, thereby realize self cooled purpose with fluid.In addition, because fluid is rotation status after pod apertures 204 is come out, help to improve the heat exchange coefficient between fluid and the motor 3 like this, so that the better cooling motor 3 of fluid.
As second embodiment of the present invention, also be provided with filter screen on the air hole 301 on the stack shell 322, such one is to prevent that the impurity in the fluid from entering the inside of motor body 3, the 2nd, can preventing to boost, producing pressure differential flattens motor with step-down is too fast.
Above disclosed only is preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (9)
1. self-cooling internal axial-flow pump, it is provided with the pump housing of chamber, the impeller that places described chamber and motor body by inside forms, and the rotating shaft of described motor body is stretched in the described pump housing and is linked to each other with described impeller,
The described pump housing is made up of air guide sleeve and diversion seat, described air guide sleeve is provided with fluid inlet, described diversion seat is provided with several pod apertures, and described air guide sleeve docks the back and forms described chamber with described diversion seat, and described fluid inlet and described pod apertures communicate with described chamber respectively; And
Described motor body comprises the motor housing which is provided with several air holes,
It is characterized in that: the center line of described pod apertures and the axis of described rotating shaft form greater than the angle of zero degree less than 90 degree, and the true dip direction of described pod apertures is identical with the sense of rotation of described impeller.
2. according to the described self-cooling internal axial-flow pump of claim 1, it is characterized in that: described motor body also comprises the bearing that supports described rotating shaft, and described bearing is a Nonlubricated bearing.
3. according to the described self-cooling internal axial-flow pump of claim 1, it is characterized in that: the angle between the center line of described pod apertures and the axis of described rotating shaft is 45 degree.
4. according to the described self-cooling internal axial-flow pump of claim 1, it is characterized in that: described air hole is provided with filter screen.
5. according to the described self-cooling internal axial-flow pump of claim 1, it is characterized in that: described air guide sleeve is connected with the flange that is connected between the described diversion seat.
6. according to the described self-cooling internal axial-flow pump of claim 5, it is characterized in that: described air guide sleeve comprises the first air guide sleeve flange plate, air guide sleeve bearing ring and the second air guide sleeve flange plate that joins successively, and described fluid inlet is opened on the described first air guide sleeve flange plate; Described diversion seat comprises the first diversion seat flange plate, diversion seat bracing ring and the second diversion seat flange plate that joins successively, and described pod apertures is positioned on the edge of the described first diversion seat flange plate; The described second air guide sleeve flange plate contacts with the described first diversion seat flange plate.
7. according to the described self-cooling internal axial-flow pump of claim 1, it is characterized in that: described motor body also comprises stator and the rotor that is enclosed within the described rotating shaft, and described motor body is two utmost points, three phase electric machine.
8. according to the described self-cooling internal axial-flow pump of claim 7, it is characterized in that: described motor housing is cylindric, described motor housing comprises upper end cap, stack shell and the lower end cap that links to each other successively, and described stator is fixed on the described stack shell, and described upper end cap links to each other with described diversion seat.
9. according to the described self-cooling internal axial-flow pump of claim 8, it is characterized in that: described stack shell is made by stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710027122XA CN100513795C (en) | 2007-03-12 | 2007-03-12 | Self-cooling internal axial-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710027122XA CN100513795C (en) | 2007-03-12 | 2007-03-12 | Self-cooling internal axial-flow pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101021214A CN101021214A (en) | 2007-08-22 |
| CN100513795C true CN100513795C (en) | 2009-07-15 |
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ID=38709076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200710027122XA Expired - Fee Related CN100513795C (en) | 2007-03-12 | 2007-03-12 | Self-cooling internal axial-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100513795C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10791648B1 (en) | 2019-03-26 | 2020-09-29 | Hewlett Packard Enterprise Development Lp | Transferring thermal energy to coolant flows |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014214524A1 (en) * | 2014-07-24 | 2016-01-28 | Magna Powertrain Hückeswagen GmbH | Pump with strain-relieved electrical connection |
| CN109973197B (en) * | 2019-03-27 | 2023-11-28 | 盐城海纳汽车零部件有限公司 | Cooling water pump for self-cooling engine |
| CN110149024B (en) * | 2019-07-08 | 2024-04-05 | 泉州市华德机电设备有限公司 | Self-heat-extraction cooling structure of high-speed motor |
| CN116792342A (en) * | 2023-08-24 | 2023-09-22 | 广东赛普电器制造有限公司 | Water pump of high-efficient cooling of hydrologic cycle formula |
-
2007
- 2007-03-12 CN CNB200710027122XA patent/CN100513795C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10791648B1 (en) | 2019-03-26 | 2020-09-29 | Hewlett Packard Enterprise Development Lp | Transferring thermal energy to coolant flows |
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| Publication number | Publication date |
|---|---|
| CN101021214A (en) | 2007-08-22 |
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Granted publication date: 20090715 Termination date: 20100312 |