CN208587315U - Experiment device of annular gap flow in centrifugal pump - Google Patents
Experiment device of annular gap flow in centrifugal pump Download PDFInfo
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- CN208587315U CN208587315U CN201821127707.9U CN201821127707U CN208587315U CN 208587315 U CN208587315 U CN 208587315U CN 201821127707 U CN201821127707 U CN 201821127707U CN 208587315 U CN208587315 U CN 208587315U
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- pump
- motor
- model
- gap flow
- ring
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- 238000002474 experimental method Methods 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
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- 239000000463 material Substances 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims 1
- 229920005372 Plexiglas® Polymers 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract description 2
- 239000002609 medium Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
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- 241000009298 Trigla lyra Species 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003722 extracellular fluid Anatomy 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Clearance flow experimental provision between a kind of centrifugal pump mouth ring, including gap current test unit, fluid media (medium) feed unit and experimental desk, fluid media (medium) feed unit are communicated with the import of the gap current test unit, and the outlet of gap current test unit is connected to water tank；The gap current test unit include electric motor stand, model pump, gear ring, pinion gear, stepper motor and for model pump provide turning power power drive unit, the pump housing of the model pump is for detachable left and right two parts, and it is connected through a screw thread, while the screw pitch of screw thread is known to determination；A choma is welded on the blade of the impeller of the model pump；The gear ring is connected as one with the left side pump housing, and the rotation of the left side pump housing is driven by ring gear against rotation；The pinion gear and gear ring cooperate, and the pinion gear is connected with stepper motor simultaneously.It is simple that the utility model provides a kind of structure, easy to operate, and measurement is accurate, and is able to satisfy clearance flow experimental provision between the centrifugal pump mouth ring in various choma gaps.
Description
Technical field
The utility model relates to clearance flow experimental provisions between a kind of centrifugal pump mouth ring more particularly to a kind of energy to study different chomas
The experimental provision that gap width influences interstitial fluid fluidal texture.
Background technique
Centrifugal pump be widely used in industry and life process in fluid media (medium) conveying, improve centrifugal pump working efficiency for
Energy-saving and emission-reduction reduce enterprise's production cost and are of great significance.The presence in choma gap can not only make centrifugal pump, and there are volume damages
It loses, but also the fluidal texture inside centrifugal pump can be changed, to influence the overall performance of centrifugal pump.Choma gap refers to pumping
Intracorporal sealing ring, i.e., the gap between choma, with impeller.Relative to generally in reality, choma gap very little, inside stream
The flow condition of dynamic complexity, counterpart interannular clearance flow changes choma gap by numerical simulation or the replacement different pump housing and impeller
Size.It is more and more for the research of clearance flow between centrifugal pump mouth ring in recent years, but never one kind can simply accurately
When measuring different choma gaps between choma clearance flow experimental provision.
Summary of the invention
In order to overcome the shortcomings of existing centrifugal pump when studying different choma gaps between choma in terms of clearance flow, the utility model
It is simple to provide a kind of structure, easy to operate, measurement is accurate, and is able to satisfy clearance flow experiment between the centrifugal pump mouth ring in various choma gaps
Device.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
Clearance flow experimental provision between a kind of centrifugal pump mouth ring, including gap current test unit, fluid media (medium) feed unit and examination
Table is tested, the fluid media (medium) feed unit and gap current test unit are mounted on the experimental desk, the fluid media (medium) supply
Unit is communicated with the import of the gap current test unit, and the outlet of the gap current test unit is connected to water tank；
The gap current test unit include electric motor stand, model pump, gear ring, pinion gear, stepper motor and for
Model pump provides the power drive unit of turning power, and the pump housing of the model pump and is passed through for detachable left and right two parts
It is threadedly coupled, while the screw pitch of screw thread is known to determination；A choma is welded on the blade of the impeller of the model pump；It is described
Gear ring is connected as one with the left side pump housing, and the rotation of the left side pump housing is driven by ring gear against rotation；The pinion gear is matched with gear ring
It closes, the pinion gear is connected with stepper motor simultaneously.
Further, the fluid media (medium) feed unit includes first motor, pump and water tank, and the first motor, pump is
It is mounted on the experimental desk, the output end of the first motor is connected with the driving end of pump, and the outlet end of pump passes through water-supply-pipe
It is connected to by the first return pipe with water tank with the liquid feeding end of the inlet communication of model pump, pump；The water tank passes through the second return pipe
It is connected to the outlet end of model pump.
Further, the driving device includes the second motor and rotational speed meters, and second motor, rotational speed meters are mounted on institute
It states on experimental desk, the output shaft of second motor is connected with the input terminal of the rotational speed meters, and the output end of the rotational speed meters is logical
It crosses shaft coupling to connect with the main shaft of the model pump, and the model pump, the rotational speed meters and the second motor coaxle is kept to set
It sets.
Further, it is furnished with regulating platform on the experimental desk, electric motor stand, model pump, revolving speed is installed on the regulating platform
Instrument and the second motor, and the model pump, rotational speed meters and the second motor coaxle arrangement.
The input pipe is respectively provided with corresponding control valve, flowmeter, pressure with first return pipe, the second return pipe
Table and rotary joint.
The pump housing and impeller material of the model pump are organic glass.
In the utility model, since the screw pitch that the model pump pump housing is threadedly coupled is fixed, so probing into choma gap
When value, it is only necessary to the circle number of pump housing rotation is controlled, it is simple to operate.Pulse signal by the way that stepper motor is arranged controls small
The circle number of gear rotation, pinion gear drives gear ring and the left side pump housing connecting with gear ring rotation, and controls the circle number of its rotation, leads to
The left side rotating cycle of the pump housing and the calculating of screw pitch are crossed, it can be seen that the size of choma space change, it is known that the size in choma gap.
The outlet of model pump is connected to by return pipe with water tank, realizes the recycling of aqueous medium, energy conservation and environmental protection.Model pump water inlet is logical
It crosses flange to connect with rotary joint, avoids the rotation for driving entire pipeline when the pump housing rotation of left side.Valve, pressure are had on pipeline
Power table and flowmeter can monitor the flow of fluid in control piper at any time.Model pump inlet passes through the outlet end of water-supply-pipe and pump
Connection obtains water.An experimental data for clearance flow flowing is measured by PIV, and by computer disposal experimental data, obtains fluid
The configuration state of flowing.
The beneficial effects of the utility model are mainly manifested in: the device has wide range of applications, and is applicable to measure different mouths
The fluidal texture of czermak space time clearance flow.Operate it is extremely convenient, when measuring different choma gaps, it is only necessary to control stepper motor
Pulse signal, most constructions are without disassembly.Measurement result is accurate, accurately controls the left side pump housing by stepper motor
The screw pitch of rotating cycle and known fixed, substantially increases experimental precision, guarantees the reliability of result.Energy-saving and environment friendly,
Used pump is the pump of low-flow high-lift, and power is smaller；Liquid medium after experiment can also return to water tank again
It uses；It is provided with valve, flowmeter and pressure gauge in pipeline, ensure that the reliability of experimental provision.The centrifugal pump mouth ring gap
Stream experimental provision provides reliable experimental basis for the design research and development of centrifugal pump.
Detailed description of the invention
Fig. 1 is the structure chart of clearance flow experimental provision between centrifugal pump mouth ring.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structure chart of the gap current test unit of the utility model.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Referring to Fig.1~Fig. 3, clearance flow experimental provision between a kind of centrifugal pump mouth ring, including motor rack 1, flange 2, rotary joint
3, gear ring 4, model pump 5, flowmeter 6, pressure gauge 7, water-supply-pipe 8, valve, 9, pump 10, first motor 11, return pipe 12, water tank
13, the second motor 14, rotational speed meters 15, experimental desk 16, regulating platform 17, stepper motor 18, pinion gear 19.The model pump 5, electricity
Machine rack 1, rotational speed meters 15, pump 10, first motor 11, the second motor 14 is respectively disposed on experimental desk 16；Second motor
14 first connect with rotational speed meters 15, are connect by rotational speed meters 15 with the main shaft of model pump 5, realize the transmission of power.
The gap current test unit include electric motor stand 1, stepper motor 18, pinion gear 19, gear ring 4, model pump 5 and
For providing the power drive unit of turning power to model pump, the pump housing of the model pump 5 is divided into removable left and right two parts, and
It is connected through a screw thread, the left part of the pump housing is connect with gear ring, is integrally formed therewith；The water inlet of the model pump 5 and rotation
Connector 3 connects；The exit of the model pump 5 is connected by water pipe and water tank 13；The gear ring 4 cooperates with pinion gear 19；Institute
Pinion gear 19 is stated to connect with stepper motor 18；The model pump 5 is connected with the output end of the power drive unit.
The fluid media (medium) feed unit includes first motor 11 and pump 10, and the first motor 11 is respectively mounted with pump 10
On the experimental desk 16, the output end of the first motor 11 is connected with the driving end of pump 10, pump 10 outlet end pass through it is defeated
Water pipe is connected to rotary joint 3, is pumped 10 liquid feeding end and is connected to by return pipe with water tank 13；The water tank 13 by return pipe with
The water outlet of model pump 5 is connected to.
The driving device includes the second motor 14 and rotational speed meters 15, and second motor 14 is installed with 15 axis of rotational speed meters
On the experimental desk 16, the output shaft of second motor 14 is connected with the input terminal of the rotational speed meters 15, the rotational speed meters
15 output end is connected with the main shaft of model pump 5, and keeps the model pump 5, the rotational speed meters 15 and the second motor 14 same
Axis arrangement.
It is furnished with regulating platform 17 on the experimental desk 16, model pump 5, rotational speed meters 15, Yi Ji is installed on the regulating platform 17
Two motors 14, and the model pump 5, rotational speed meters 15 and the second motor 14 are coaxially arranged.
The water-supply-pipe 8 and the return pipe 12 are equipped with corresponding flowmeter 6, pressure gauge 7 and control valve 9.
As shown in Fig. 2, 5 structure of model pump includes the pump housing 51, impeller 52, key 54, sealing ring 55, sealing ring 56, pump
Lid 57, axle sleeve 58, packing ring 510, filler 511, gland 512, o type sealing ring 513, bearing body 515, axis 516, bearing end
Lid 517, shaft coupling 518, key 519, suspension strut 521, bearing 522.The impeller 52 is mounted on axis 516 by key 54；
The axle sleeve 58 is fixed on axis 516；The bearing 522 is fixed on axis 516；The axis 516 connects with shaft coupling 518
It connects；The packing ring 510 is placed on axle sleeve 58；The bearing body 515 is connect by studs 59 with the pump housing 51；It is described outstanding
Frame bracket 521 is connect by stud 520 with bearing body 515；The bearing (ball) cover 517 is connect with bearing body 515, guarantees bearing
The axially position of outer ring；The sealing ring 55 is connect by lock-screw 523 with the pump housing 51；The sealing ring 56 connects with impeller 52
It connects, guarantees the state that choma gap width can reach 0.
The inner face of the axle sleeve 58 is embedded with o type sealing ring 518.
The working principle of the present embodiment: in use, by control stepper motor pulse signal control gear ring with
The circle number of pump housing rotation simultaneously learns the size in choma gap using the relationship between the circle number of screw pitch, starting first motor 11 and the
Two motors 14, drive the rotation of impeller in model pump 5, and the fluid media (medium) inside 10 drive water tank 13 of pump enters in model pump 5, leads to
The experimental data that PIV measurement model pumps fluid in 5 choma gaps is crossed, and obtains fluid stream using computer analysis experimental data
Dynamic structure.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821127707.9U CN208587315U (en) | 2018-07-17 | 2018-07-17 | Experiment device of annular gap flow in centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821127707.9U CN208587315U (en) | 2018-07-17 | 2018-07-17 | Experiment device of annular gap flow in centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208587315U true CN208587315U (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821127707.9U Expired - Fee Related CN208587315U (en) | 2018-07-17 | 2018-07-17 | Experiment device of annular gap flow in centrifugal pump |
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| Country | Link |
|---|---|
| CN (1) | CN208587315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678971A (en) * | 2018-07-17 | 2018-10-19 | 浙江工业大学 | Clearance flow experimental provision between centrifugal pump mouth ring |
| CN112213525A (en) * | 2020-09-22 | 2021-01-12 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
-
2018
- 2018-07-17 CN CN201821127707.9U patent/CN208587315U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678971A (en) * | 2018-07-17 | 2018-10-19 | 浙江工业大学 | Clearance flow experimental provision between centrifugal pump mouth ring |
| CN108678971B (en) * | 2018-07-17 | 2024-05-07 | 浙江工业大学 | Centrifugal pump mouth ring gap flow experimental device |
| CN112213525A (en) * | 2020-09-22 | 2021-01-12 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
| CN112213525B (en) * | 2020-09-22 | 2024-04-09 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190308 |