CN102425550A - Centrifugal pump for visual internal flow field test - Google Patents
Centrifugal pump for visual internal flow field test Download PDFInfo
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- CN102425550A CN102425550A CN2011103562647A CN201110356264A CN102425550A CN 102425550 A CN102425550 A CN 102425550A CN 2011103562647 A CN2011103562647 A CN 2011103562647A CN 201110356264 A CN201110356264 A CN 201110356264A CN 102425550 A CN102425550 A CN 102425550A
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- centrifugal pump
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Abstract
The invention relates to a centrifugal pump, and particularly relates to a centrifugal pump for visual internal flow field test. The centrifugal pump comprises a shell, an impeller, a guide blade, a main shaft, and a support device, and the centrifugal pump is characterized in that the shell, the impeller, and the guide blade are made of a transparent material; the shell is fixed on the support device,a hollow water diversion chamber is arranged in the shell, the impeller is positioned in the shell and fixed at one end of the main shaft; the main shaft passes through the shell and the support device, and is supported by a bearing on the support device; when the centrifugal pump performs PIV (particle image velocimetry) test, the shell is not shielded so as to guarantee photographic quality shot by a PIV test camera, and an internal flow field of the guide blade can be tested; when the centrifugal pump performs the PIV test, if the test result of the internal flow field of the impeller is unsatisfied, and the test result of the internal flow field of the guide blade is adopted; the support device can not shield a water sucking chamber part, therefore, the pump can perform the PIV test on a flow field of the flow channel of a water sucking chamber.
Description
Technical field
The present invention relates to a kind of centrifugal pump, particularly relate to a kind of visual flow field test centrifugal pump.
Background technique
Particle image velocimetry technology (Particle Image Velocimetry, PIV) since have whole flow field measure fast, intuitively, advantage such as interference flowing field not, in pump internal flow research, obtained using widely in recent years.In the PIV process of the test, phase tablet quality and shooting area are most important, and the photograph result of its shooting area directly influences the PIV measurement result.
At present, PIV test centrifugal pump mostly adopts main shaft directly partly to stretch out from the pump housing, and photographic camera is directly taken pictures to the impeller interior flow field from suction chamber the place ahead then, the result of the photograph that can't guarantee to take a picture.Like patent of invention No.201010520430.8; Though its design has solved some problems that exist in part forefathers' design, still exist PIV to test a series of shortcomings such as photographic quality that shooting area has only zone such as impeller and suction chamber runner and camera to come out can't guarantee.
Summary of the invention
The technical problem that (one) will solve
The technical problem that the present invention will solve is: overcome the deficiency that shooting area was single and photographic quality can't guarantee when the test centrifugal pump carried out the PIV test in the existing technology.
(2) technological scheme
In order to solve the problems of the technologies described above, the present invention provides a kind of visual flow field test centrifugal pump, and this centrifugal pump comprises housing, impeller, stator, main shaft, support device, it is characterized in that, said housing, impeller, stator are that transparent material is processed; Said housing is fixed on the support device, and housing has the flume of hollow; Said impeller is positioned at housing, and is fixed on an end of main shaft; Said main shaft passes housing and support device, and by the bearings on the support device.
Wherein, housing comprises pump housing spiral case and pump housing gland, and said pump housing gland has a suction chamber to outer lug, and the side of suction chamber is provided with water intake.
Wherein, there is axis hole on the top of suction chamber, and said main shaft passes axis hole.
Wherein, the axis hole place adopts filler and Gland to seal.
Wherein, support device is the supporting frame of a step structure, and support frame as described above has first chamber and second chamber; Said first chamber, the both sides that main spindle's is installed are provided with bearing and bearing (ball) cover, and main shaft is by bearings; The boss of suction chamber is positioned at second chamber on the said pump housing gland.
Wherein, also comprise the inlet segment pipe; The position of the water intake on the corresponding pump housing gland of second chamber of support frame as described above has groove; Said inducer pipe passes groove and connects water intake.
Wherein, second chamber is equipped with PIV test photographic camera.
Wherein, supporting frame, pump housing gland and pump housing spiral case make and are bolted together.
Wherein, impeller comprises 4 plain vanes.
Wherein, the material of housing, impeller, stator is a transparent organic glass.
(3) beneficial effect
Technique scheme has following advantage: when the housing that does not block carried out the PIV test, the photographic quality of PIV test camera can be able to guarantee, and can test the stator interior flow field; If the unfavorable words of impeller interior flow field test result can adopt the test result of stator interior flow field during the PIV test; Therefore support device can not block the suction chamber part, can carry out the PIV test to the flow field that this pump carries out the suction chamber runner.
Description of drawings
Fig. 1 is an embodiment of the invention general assembly structural representation;
Fig. 2 is an embodiment of the invention general assembly side view;
Fig. 3 is the structural representation that main shaft is connected with impeller in the embodiment of the invention;
Fig. 4 is an embodiment of the invention pump housing gland sectional view;
Fig. 5 is the sealed structural representation of suction chamber in embodiment of the invention main shaft and the pump housing gland;
Fig. 6 is an embodiment of the invention supporting frame master TV structure schematic representation.
Wherein, 1: pump housing spiral case; 2: pump housing gland; 3: impeller; 4: stator; 5: the inducer pipe; 6: the outlet section pipe; 7: support device; 8: main shaft; 9: bearing; 10: bearing (ball) cover; 11: impeller nut; 12: filler; 13: Gland; 14: axis hole; 15: water intake; 16: suction chamber; 17: positioning pin hole; 18:PIV tests photographic camera; I: first chamber; II: second chamber.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
The visual flow field test of present embodiment centrifugal pump structure is as shown in Figure 1.This centrifugal pump pump comprises pump housing spiral case 1, pump housing gland 2, impeller 3, stator 4, inducer pipe 5, outlet section pipe 6, supporting frame 7, main shaft 8, bearing 9, bearing (ball) cover 10.It is material manufacture that pump housing spiral case 1, pump housing gland 2, impeller 3, stator 4, inducer pipe 5, outlet section pipe 6 adopt the bright plexiglass of full impregnated, and it is material manufacture that supporting frame 7, main shaft 8 adopt stainless steel, makes the interior flow field of centrifugal pump high-visible.Pump housing spiral case 1 is in a whole bright plexiglass of full impregnated that gets, to draw out the flume cavity to form, and makes this centrifugal pump be convenient to lay, and reduces vibration.
As shown in Figure 4; Pump housing gland 2 has a suction chamber that outwards convexes to form 16; Suction chamber 16 is from the cuboid of pump housing gland 2 front portions, to draw out, and is provided with water intake 15 in suction chamber 16 both sides of pump housing gland 2, and the top is provided with the axis hole that main shaft 8 stretches out suction chamber; When main shaft 8 stretches out the axis hole 14 of pump housing gland 2 suction chambers, adopt filler 12 and Gland 13 to seal.
As shown in Figure 6, the structure of supporting frame 7 is stepped, and this supporting frame 7 has two chambers, is respectively the first chamber I and the second chamber II, and wherein the two ends of the I chamber of supporting frame 7 are respectively equipped with bearing 9 and bearing (ball) cover 10.The protruding part of suction chamber is positioned at the second chamber II on the pump housing gland 2.Supporting frame 7, pump housing gland 2 and pump housing spiral case 1 make and are bolted together, and pump housing gland 2 is formed the housing with hollow flume with pump housing spiral case 1.Inducer pipe 5 stretches into the second chamber II and is connected with suction chamber in the pump housing gland 2; Stretch into the II chamber for the ease of inducer pipe 5; A groove is dug out in the position of the water intake 15 from the corresponding pump housing gland of the second chamber II of supporting frame 7; Inducer pipe 5 passes groove and connects water intake 15, and is as shown in Figure 2.Pump housing gland 2 is packed into behind the second chamber II of supporting frame 7; Can PIV be tested pack into the second chamber II of support device 7 of photographic camera; The second chamber II does not excavate part and can prevent the laser direct irradiation photographic camera of PIV testing laser device; PIV test photographic camera 18 places in the second chamber II of support device 7 and can directly take centrifugal pump suction chamber interior flow field, thus the accuracy of proof test.
When above-mentioned centrifugal pump is installed; At first, stator 4 is placed in the pump housing spiral case 1, stator 4 is that the principle that accordings to turbomachinery designs; Stator 4 adopts a plurality of locating studs that are uniformly distributed with to position when installing; For ease of the location of locating stud, the inboard of pump housing gland 2 is uniformly distributed with a plurality of positioning pin holes 17, and is as shown in Figure 4; Secondly main shaft 8 is passed impeller 3 and also fix with impeller nut 11 and drag washer 14, as shown in Figure 3; Then main shaft 8 is passed the suction chamber of pump housing gland 2, and add filler 12, use Gland 13 to seal, as shown in Figure 5; Then, impeller 3 is put into pump housing spiral case 1 together, then pump housing gland 2 just in time contacts with pump housing spiral case 1, main shaft 8 is passed the first chamber I of supporting frame 7 again, and is supported by bearing of laying on the supporting frame 79 and bearing (ball) cover 10; Inducer pipe 5 stretches into the water sucking mouth of the gluing then suction chamber both sides in pump housing gland 2 of the second chamber II of support device 7 respectively, realizes that the suction chamber both sides of visual flow field test centrifugal pump intake simultaneously.At last, the water outlet of outlet section pipe 6 with pump housing spiral case 1 coupled together, pump housing spiral case 1, pump housing gland 2, support device 7 are fixed together with bolt with bolt.
When carrying out the PIV testing experiment, PIV is tested photographic camera 18 be installed in the second chamber II, as shown in Figure 6; Start centrifugal pump operation a period of time, treat that centrifugal pump is stable after, can carry out the PIV test.
The suction chamber of main shaft 8 of the present invention from pump housing gland 2 stretches out, support device 7 and pump housing gland 2 the same side at centrifugal pump impeller 3; Purpose is to make when carrying out the PIV test, makes PIV test photographic camera can shoot the interior flow field of centrifugal pump more clearly, makes test result more accurate.Stator 4 is placed between impeller 3 and the pump housing spiral case 1, and stator 4 interior flow fields and pump housing gland 2 suction chamber interior flow fields all can be used as shooting area and test.
In addition, support device 7 second chamber II's does not excavate part and can also prevent the laser direct irradiation photographic camera of PIV testing laser device; Pump housing spiral case 1 part is in the unsettled influence that can effectively reduce the vibration in centrifugal pump when test to test result.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and replacement, these improvement and replacement also should be regarded as protection scope of the present invention.
Claims (10)
1. a visual flow field test centrifugal pump is characterized in that, comprises housing, impeller, stator, main shaft, support device, it is characterized in that said housing, impeller, stator are that transparent material is processed; Said housing is fixed on the support device, and housing has the flume of hollow; Said impeller is positioned at housing, and is fixed on an end of main shaft; Said main shaft passes housing and support device, and by the bearings on the support device.
2. visual flow field test centrifugal pump as claimed in claim 1 is characterized in that said housing comprises pump housing spiral case and pump housing gland, and said pump housing gland has a suction chamber to outer lug, and the side of suction chamber is provided with water intake.
3. visual flow field test centrifugal pump as claimed in claim 2 is characterized in that there is axis hole on the top of said suction chamber, and said main shaft passes axis hole.
4. visual flow field test centrifugal pump as claimed in claim 3 is characterized in that said axis hole place adopts filler and Gland to seal.
5. visual flow field test centrifugal pump as claimed in claim 4 is characterized in that said support device is the supporting frame of a step structure, and support frame as described above has first chamber and second chamber; Said first chamber, the both sides that main spindle's is installed are provided with bearing and bearing (ball) cover, and main shaft is by bearings; The boss of suction chamber is positioned at second chamber on the said pump housing gland.
6. visual flow field test centrifugal pump as claimed in claim 5 is characterized in that, also comprises the inlet segment pipe; The position of the water intake on the corresponding pump housing gland of second chamber of support frame as described above has groove; Said inducer pipe passes groove and connects water intake.
7. visual flow field test centrifugal pump as claimed in claim 5 is characterized in that said second chamber is equipped with PIV test photographic camera.
8. visual flow field test centrifugal pump as claimed in claim 5 is characterized in that support frame as described above, pump housing gland and pump housing spiral case make and be bolted together.
9. visual flow field test centrifugal pump as claimed in claim 1 is characterized in that said impeller comprises 4 plain vanes.
10. like any described visual flow field test centrifugal pump of claim 1～9, it is characterized in that the material of said housing, impeller, stator is a transparent organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103562647A CN102425550A (en) | 2011-11-10 | 2011-11-10 | Centrifugal pump for visual internal flow field test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103562647A CN102425550A (en) | 2011-11-10 | 2011-11-10 | Centrifugal pump for visual internal flow field test |
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| CN102425550A true CN102425550A (en) | 2012-04-25 |
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| CN2011103562647A Pending CN102425550A (en) | 2011-11-10 | 2011-11-10 | Centrifugal pump for visual internal flow field test |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062075A (en) * | 2012-11-09 | 2013-04-24 | 江苏大学 | Device and method for particle image velocimetry (PIV) error measurement and demarcation of centrifugal pump |
| CN103994082A (en) * | 2014-05-23 | 2014-08-20 | 江苏大学 | Centrifugal pump inner non-steady flow visualization experiment device |
| CN104696233A (en) * | 2015-03-10 | 2015-06-10 | 中国计量学院 | Method for calibrating numerical simulation results of inner flow field in centrifugal pump |
| CN105952661A (en) * | 2016-06-15 | 2016-09-21 | 浙江工业大学 | Visual experiment device for centrifugal pump impeller |
| CN106286082A (en) * | 2016-09-27 | 2017-01-04 | 西华大学 | A kind of system of model francis turbine runner internal vortex tape test |
| CN110043469A (en) * | 2019-04-03 | 2019-07-23 | 江苏大学 | A kind of self-absorption centrifugal pump configuration carrying out interior flow field PIV measurement and PIV measurement method |
| CN110332123A (en) * | 2019-08-06 | 2019-10-15 | 浙江理工大学 | A kind of Multistage centrifugal pump interstage runner flow-stopping plate performance testing device and method |
| CN111365252A (en) * | 2020-03-30 | 2020-07-03 | 武汉大学 | Test bed for water jet propulsion pump |
| CN111366744A (en) * | 2018-12-26 | 2020-07-03 | 东北大学 | Measuring system and measuring method for internal flow field of dry vacuum pump |
| CN111577618A (en) * | 2020-05-19 | 2020-08-25 | 中国农业大学 | Experimental device for measuring internal flow field of rotary machine |
| CN112797005A (en) * | 2021-04-07 | 2021-05-14 | 中国电建集团上海能源装备有限公司 | Method and device for measuring flow field in closed cavity of high-curve impeller of three-dimensional centrifugal pump |
Citations (1)
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| CN101943169A (en) * | 2010-10-27 | 2011-01-12 | 江苏大学 | Centrifugal pump used for three-dimensional particle image velocimetry (PIV) measurement |
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2011
- 2011-11-10 CN CN2011103562647A patent/CN102425550A/en active Pending
Patent Citations (1)
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| CN101943169A (en) * | 2010-10-27 | 2011-01-12 | 江苏大学 | Centrifugal pump used for three-dimensional particle image velocimetry (PIV) measurement |
Non-Patent Citations (1)
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| 袁建平: "《离心泵多设计方案下内流PIV测试及其非定常全流场数值模拟》", 15 October 2008 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062075B (en) * | 2012-11-09 | 2015-06-10 | 江苏大学 | Device and method for particle image velocimetry (PIV) error measurement and demarcation of centrifugal pump |
| CN103062075A (en) * | 2012-11-09 | 2013-04-24 | 江苏大学 | Device and method for particle image velocimetry (PIV) error measurement and demarcation of centrifugal pump |
| CN103994082A (en) * | 2014-05-23 | 2014-08-20 | 江苏大学 | Centrifugal pump inner non-steady flow visualization experiment device |
| CN103994082B (en) * | 2014-05-23 | 2016-08-24 | 江苏大学 | The internal unsteady flow visual experimental apparatus of a kind of centrifugal pump |
| CN104696233A (en) * | 2015-03-10 | 2015-06-10 | 中国计量学院 | Method for calibrating numerical simulation results of inner flow field in centrifugal pump |
| CN104696233B (en) * | 2015-03-10 | 2016-05-25 | 中国计量学院 | A kind of calibration steps of centrifugal pump Inner Flow Simulation result |
| CN105952661A (en) * | 2016-06-15 | 2016-09-21 | 浙江工业大学 | Visual experiment device for centrifugal pump impeller |
| CN106286082B (en) * | 2016-09-27 | 2019-09-03 | 西华大学 | A kind of system of model francis turbine runner inside vortex tape test |
| CN106286082A (en) * | 2016-09-27 | 2017-01-04 | 西华大学 | A kind of system of model francis turbine runner internal vortex tape test |
| CN111366744A (en) * | 2018-12-26 | 2020-07-03 | 东北大学 | Measuring system and measuring method for internal flow field of dry vacuum pump |
| CN110043469A (en) * | 2019-04-03 | 2019-07-23 | 江苏大学 | A kind of self-absorption centrifugal pump configuration carrying out interior flow field PIV measurement and PIV measurement method |
| CN110332123A (en) * | 2019-08-06 | 2019-10-15 | 浙江理工大学 | A kind of Multistage centrifugal pump interstage runner flow-stopping plate performance testing device and method |
| CN110332123B (en) * | 2019-08-06 | 2024-04-05 | 浙江理工大学 | Device and method for testing performance of flow baffle plate of interstage flow passage of multistage centrifugal pump |
| CN111365252A (en) * | 2020-03-30 | 2020-07-03 | 武汉大学 | Test bed for water jet propulsion pump |
| CN111577618A (en) * | 2020-05-19 | 2020-08-25 | 中国农业大学 | Experimental device for measuring internal flow field of rotary machine |
| CN112797005A (en) * | 2021-04-07 | 2021-05-14 | 中国电建集团上海能源装备有限公司 | Method and device for measuring flow field in closed cavity of high-curve impeller of three-dimensional centrifugal pump |
| CN112797005B (en) * | 2021-04-07 | 2021-09-03 | 中国电建集团上海能源装备有限公司 | Method and device for measuring flow field in closed cavity of high-curve impeller of three-dimensional centrifugal pump |
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Application publication date: 20120425 |