CN106678056B - A kind of general-purpose centrifugal pump choma testing stand - Google Patents
A kind of general-purpose centrifugal pump choma testing stand Download PDFInfo
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- CN106678056B CN106678056B CN201710107815.3A CN201710107815A CN106678056B CN 106678056 B CN106678056 B CN 106678056B CN 201710107815 A CN201710107815 A CN 201710107815A CN 106678056 B CN106678056 B CN 106678056B
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 57
- 239000012530 fluid Substances 0.000 claims abstract description 50
- 230000005389 magnetism Effects 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000004078 waterproofing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000011160 research Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000036449 good health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of general-purpose centrifugal pump choma testing stand, including choma test cell, fluid media (medium) feed unit, leakage liquid collector unit and experimental desk, the fluid media (medium) feed unit, choma test cell and leakage liquid collector unit are arranged on the experimental desk, the inlet communication of the fluid media (medium) feed unit and the annular seal space of the choma test cell, the outlet of the annular seal space of the choma test cell and the leakage liquid collector unit pipeline connection.The beneficial effects of the invention are as follows：It is applicable to measure different choma gaps, different choma length, the leakage rate of choma under different choma patterns；Operate it is extremely convenient, when being tested to different samples, it is only necessary to change test choma, most constructions without dismounting.Measurement result is accurate, by rotor portion be fully sealed and difference method accurate measurement dielectric leakage amount, substantially increase experimental precision, ensure the reliability of result.
Description
Technical field
The present invention relates to a kind of general-purpose centrifugal pump choma testing stand, particularly a kind of general research centrifugal pump mouth ring
The testing stand that parameters convection body leakage rate influences.
Background technology
Centrifugal pump be widely used in industry and life process in fluid media (medium) conveying, improve centrifugal pump operating efficiency for
Energy-saving and emission-reduction, it is significant to reduce enterprise's production cost.Three kinds of losses are primarily present in centrifugation pump operation：Machinery damage
Mistake, volumetric loss, hydraulic loss, and choma leakage loss is the important component of volumetric loss.Choma leakage loss refers to
There is pressure differential in the sealing ring at impeller eye, i.e. choma, its both sides, for a lateral pressure close to outlet pressure, side is entrance
Pressure, higher-pressure region passage of liquid czermak space flow to low-pressure area, and this partially liq is done manual work by impeller and obtains energy, but liquid is simultaneously
Do not flowed out by outlet of centrifugal pump, thus cause the reduction of water pump output, i.e. centrifugal pump energy loss.In reality relative to
Generally, choma gap very little, and internal flow is complicated, is all to carry out whole machine experiment in common centrifugal pump experiment, it is right
The stage of numerical simulation and empirical estimating is rested in the research of choma.Research for centrifugal pump mouth ring in recent years is increasingly
More and many new choma structures are proposed, but never a kind of can be simply have accurately measurement choma leakage rate
Experimental provision.
The content of the invention
For deficiency of the current centrifugal pump in terms of choma leak-testing, the present invention provides a kind of simple in construction, operation
Easily, test is accurate, and can meet multiple types sample, the general-purpose centrifugal pump choma testing stand of multi-state.
A kind of general-purpose centrifugal pump choma testing stand of the present invention, it is characterised in that：Including choma test cell, fluid
Medium feed unit, leakage liquid collector unit and experimental desk, the fluid media (medium) feed unit, choma test cell and
Leakage liquid collector unit is arranged on the experimental desk, and the fluid media (medium) feed unit is close with the choma test cell
Seal the inlet communication of chamber, the outlet of the annular seal space of the choma test cell and the leakage liquid collector unit pipeline connection；
The choma test cell include cavity, front shroud, the main shaft for placing choma exemplar to be tested, gland and
For providing the power drive unit of turning power to cavity, the cavity side carries opening, and the front shroud is arranged on cavity
Opening, and seal affixed formation annular seal space therewith；The major axis horizontal is supported in the annular seal space, the spindle outer wall
Provided with the step for blocking choma exemplar to be tested, the annular seal space is divided into front and rear two chamber by the step, and ante-chamber be by
Nearby end cap side, back cavity are away from drive end bearing bracket side；The cavity, which is provided with, to be used to connect with the leakage liquid collector unit
Logical upper water-guiding hole, the rear water-guiding hole for being respectively used to connect with fluid media (medium) feed unit, lower water-guiding hole, for testing ante-chamber pressure
The preceding pressure tap of power and the rear pressure tap for cavity pressure after test；The gland is socketed at the step of the main shaft, described to treat
Test choma exemplar is clipped between gland and the main shaft step surface；The output end of the cavity and the power drive unit
It is connected；
The fluid media (medium) feed unit includes the first motor, pump, vacuum tank, fluid reservoir and for supporting vacuum tank
Mounting bracket, first motor, pump are installed on the experimental desk, the output end of first motor and the drive end phase of pump
Even, the outlet end of pump is connected by water-supply-pipe with vacuum tank, and the liquid feeding end of pump is connected by return pipe with fluid reservoir；The voltage stabilizing
Tank is connected by feed liquor flexible pipe with the back cavity of cavity；
The leakage liquid collector unit includes liquid collecting graduated cylinder and liquid collecting flexible pipe, one end of the liquid collecting flexible pipe with it is described close
The ante-chamber connection of chamber is sealed, the other end of the liquid collecting flexible pipe connects with liquid collecting graduated cylinder.
The drive device includes the second motor, rotational speed meters, permanent magnetism cover and permanent magnet, second motor, rotational speed meters
It is coaxially mounted on the experimental desk, the output shaft of second motor is connected with the input of the rotational speed meters, the rotating speed
The output end of instrument is connected by shaft coupling with the installation end of the permanent magnetism cover, and the permanent magnetism cover covers on the afterbody of cavity；It is described forever
Magnet is embedded in the spindle outer wall positioned at back cavity, and keeps the cavity, the rotational speed meters and the second motor coaxle to set.
It is furnished with regulating platform on the experimental desk, annular seal space, rotational speed meters and the second motor, and institute is installed on the regulating platform
State annular seal space, rotational speed meters and the second motor coaxle arrangement.
The water-supply-pipe and the return pipe are respectively provided with corresponding control valve.
The preceding pressure tap and rear pressure tap of the cavity are radially arranged along cavity, and the ante-chamber of preceding pressure tap and cavity connects
Logical, rear pressure tap connects with the back cavity of cavity；The preceding pressure tap and the rear pressure tap, which are all furnished with, to be used to determine front and rear chamber pressure
The pressure gauge of power difference.
The upper water-guiding hole of the cavity is arranged on the upper front end of cavity, and the lower water-guiding hole of the cavity is arranged on cavity
Front lower portion；The rear end of the cavity is provided with the ring type deep trough being recessed to intracavitary, and the ring type deep trough is by the tail end face of cavity
It is divided into inner ring end face and outer shroud end face, water-guiding hole after the outer shroud end face is uniformly provided with 4, the rear water-guiding hole passes through feed liquor
Flexible pipe connects with the vacuum tank；Back-off permanent magnetism cover in the ring type deep trough, the permanent magnet of the afterbody insertion of main shaft are contained in forever
Magnetic cover inner chamber, ensure that permanent magnet forms electromagnetic induction with permanent magnetism cover.
Tail of cavity body inner face, the inner face of drive end bearing bracket are respectively mounted plastics waterproofing bearing, and the main shaft both ends pass through plastics
Water-sealed bearing is horizontally arranged at the inside of annular seal space.
The inner face of the drive end bearing bracket is embedded with the first O-ring seal.
The outer wall of the main shaft is provided with three-level step, and the external diameter of step is axially cumulative from front to back along main shaft, and rearmost end
Step surface be embedded with the second O-ring seal.
The parameters such as the interior electrical path length due to cavity are all fixed, so in parameters such as research choma gap lengths
When, it is only necessary to the external diameter of choma exemplar to be tested either length or form are changed, it is simple to operate.Front top
Upper water-guiding hole be used for collect choma leakage liquid, direct it to liquid collector area.The design of water guide mouth is effective at top
Avoid the interference of gravity.The lower water-guiding hole of front bottom end to after testing by the liquids recovery in device to fluid reservoir work as
In, energy-conserving and environment-protective.Water-guiding hole after four of rear end tails, the liquid in vacuum tank is transported in choma test cell,
Four uniform holes are opened up, help to make liquid smoothly flow into, reduce pressure change caused by flow of fluid.Seal cavity rear end
There is permanent magnetism cover outside, and permanent magnetism cover is connected by shaft coupling with the second motor, also carries rotational speed meters therebetween.When the second motor rotates
When, drive permanent magnetism cover to rotate, permanent magnetism cover and the permanent magnet at main shaft rear portion produce electromagnetic induction, drive main shaft and choma sample to turn
It is dynamic.The water inlet of annular seal space is conveyed by vacuum tank by water-supply-pipe, on vacuum tank except water-supply-pipe, outlet pipe interface with
Outside, pressure gauge is come with, to ensure the stable of experimental bench system.Water-supply-pipe front portion pipeline connects pump machine, is carried on pipeline
Valve, controlling pump inject the flow of fluid in vacuum tank.Pump is fetched water by water return pipeline from fluid reservoir.Test choma leakage
Fluid is transported in liquid collecting graduated cylinder by flexible pipe, can be with by contrasting the situation of change of fluid volume in graduated cylinder in the unit interval
Learn choma leakage rate.After to be tested, the valve on water return pipeline is opened, the fluid in experimental provision is flowed back into liquid storage
Tank.
The beneficial effects of the invention are as follows：The device application study is in extensive range, is applicable to measure different choma gaps, no
With choma length, the leakage rate of choma under different choma patterns.Operate it is extremely convenient, when being tested to different samples,
Only need to change test choma, most constructions are without dismounting.Measurement result is accurate, passes through the complete close of rotor portion
Envelope and difference method accurate measurement dielectric leakage amount, substantially increase experimental precision, ensure the reliability of result.Green energy conservation ring
Protect, used pump is the pump of low-flow high-lift, and power is smaller；Liquid medium after experiment can return to fluid reservoir again
Secondary use；It is appropriate in pipeline to be provided with valve and voltage-stabiliser tube, guarantee experimental bench reliability.Ring experimental bench of withdrawing the previous remark sets for centrifugal pump
Meter research and development provide reliable experimental basis.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the structure chart of the choma test cell of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
A kind of general-purpose centrifugal pump choma testing stand of the present invention of embodiment 1, it is characterised in that：Tested including choma single
Member, fluid media (medium) feed unit, leakage liquid collector unit and experimental desk, the fluid media (medium) feed unit, choma test
Unit and leakage liquid collector unit are arranged on the experimental desk, and the fluid media (medium) feed unit is tested with the choma
The inlet communication of the annular seal space of unit, the outlet of the annular seal space of the choma test cell and the leakage liquid collector unit pipe
Road connects；
The choma test cell include cavity 14, front shroud 6, the main shaft 11 for placing choma exemplar 12 to be tested,
Gland 10 and the power drive unit for providing turning power to cavity, the side of cavity 14 carries opening, the protecgulum
Plate 6 is arranged on the opening of cavity 14, and seals affixed formation annular seal space therewith；The main shaft 11 is horizontally supported at annular seal space
Interior, the outer wall of main shaft 11 is provided with the step for being used for blocking choma exemplar 12 to be tested, and the annular seal space is divided into by the step
Front and rear two chamber, and ante-chamber is close to the side of drive end bearing bracket 6, back cavity is away from the side of drive end bearing bracket 6；The cavity 14 be provided be used for
The upper water-guiding hole 141 of leakage liquid collector unit connection, it is respectively used to the rear water guide that is connected with fluid media (medium) feed unit
Hole 142, lower water-guiding hole 143, the preceding pressure tap for testing preceding cavity pressure and the rear pressure tap for cavity pressure after test；It is described
Gland 10 is socketed at the step of the main shaft 11, and the choma exemplar 12 to be tested is clipped in the gland 10 and main shaft step surface
Between；The cavity 14 is connected with the output end of the power drive unit；
The fluid media (medium) feed unit includes the first motor 26, pump 25, vacuum tank 22, fluid reservoir 29 and for supporting
The mounting bracket 27 of vacuum tank 29, first motor 26, pump 25 are installed on the experimental desk 1, first motor 26
Output end is connected with the drive end of pump 25, and the outlet end of pump 25 is connected by water-supply-pipe 23 with vacuum tank 22, the liquid feeding end of pump 25
Connected by return pipe 31 with fluid reservoir 29；The vacuum tank 22 is connected by feed liquor flexible pipe 20 with the back cavity of cavity 14；
The leakage liquid collector unit includes liquid collecting graduated cylinder 3 and liquid collecting flexible pipe 4, one end of the liquid collecting flexible pipe 4 and institute
The ante-chamber connection of annular seal space is stated, the other end of the liquid collecting flexible pipe 4 connects with liquid collecting graduated cylinder 3.
The drive device includes the second motor 28, rotational speed meters 19, permanent magnetism cover 17 and permanent magnet 15, second motor
28th, rotational speed meters 19 are coaxially mounted on the experimental desk 1, the input of the output shaft of second motor 28 and the rotational speed meters 19
End is connected, and the output end of the rotational speed meters 19 is connected by shaft coupling 18 with the installation end of the permanent magnetism cover 17, the permanent magnetism cover
17 cover on the afterbody of cavity 14；The permanent magnet 15 is embedded in the outer wall of main shaft 11 positioned at back cavity, and keeps the cavity 14, described
The motor 28 of rotational speed meters 19 and second is coaxially disposed.
It is furnished with regulating platform 2 on the experimental desk 1, annular seal space, the motor of rotational speed meters 19 and second is installed on the regulating platform 2
28, and the annular seal space, the motor 28 of rotational speed meters 19 and second are coaxially arranged.
The water-supply-pipe 23 and the return pipe 31 are respectively provided with corresponding control valve (24,30).
The preceding pressure tap and rear pressure tap of the cavity 14 are radially arranged along cavity 14, and before preceding pressure tap and cavity 14
Chamber connects, and rear pressure tap connects with the back cavity of cavity 14；Before the preceding pressure tap and the rear pressure tap are all furnished with for determining
The first pressure table 16 of back cavity pressure differential.
It is furnished with second pressure gauge 21 on the vacuum tank 22.
The upper water-guiding hole 141 of the cavity 14 is arranged on the upper front end of cavity 14, the lower water-guiding hole 143 of the cavity 14
It is arranged on the front lower portion of cavity 14；The rear end of the cavity 14 is provided with the ring type deep trough being recessed to intracavitary, the ring type deep trough
The tail end face of cavity 14 is divided into inner ring end face and outer shroud end face, water-guiding hole after the outer shroud end face is uniformly provided with 4
142, the rear water-guiding hole 142 is connected by feed liquor flexible pipe 20 with the vacuum tank 22；Back-off permanent magnetism cover in the ring type deep trough
17, the permanent magnet of the afterbody insertion of main shaft 11 is contained in the inner chamber of permanent magnetism cover 17, ensures that permanent magnet 15 forms electromagnetism with permanent magnetism cover 17
Sensing.
The afterbody inner face of cavity 14, the inner face of drive end bearing bracket 6 are respectively mounted plastics waterproofing bearing 5, and the both ends of main shaft 11 lead to
Cross the inside that plastics waterproofing bearing 5 is horizontally arranged at annular seal space.
The inner face of the drive end bearing bracket 6 is embedded with the first O-ring seal 7.
The outer wall of the main shaft 11 is provided with three-level step, and the external diameter of step is axially cumulative from front to back along main shaft, and finally
The step surface at end is embedded with the second O-ring seal 13.
The parameters such as the interior electrical path length due to cavity 14 are all fixed, so in parameters such as research choma gap lengths
When, it is only necessary to the external diameter of choma exemplar 12 to be tested either length or form are changed, it is simple to operate.Front end
The upper water-guiding hole at top is used for the liquid for collecting choma leakage, directs it to liquid collector area, designs and effectively kept away at top
The interference of gravity is exempted from.The lower water-guiding hole 143 of front bottom end is to after testing by the liquids recovery in device to fluid reservoir
It is central, energy-conserving and environment-protective.Water-guiding hole 142 after four of rear end tails, the liquid in vacuum tank 22 is transported into choma test
In unit, four uniform holes are opened up, help to make liquid smoothly flow into, reduce pressure change caused by flow of fluid.It is close
There is permanent magnetism cover 17 outside envelope cavity rear end, permanent magnetism cover 17 is connected by shaft coupling 18 with the second motor 28, also carries rotational speed meters therebetween
19.When the second motor 28 rotates, permanent magnetism cover 17 is driven to rotate, permanent magnetism cover 17 and the permanent magnet 15 at the rear portion of main shaft 11 produce electromagnetism
Sensing, main shaft 11 and choma sample 12 is driven to rotate.The water inlet of annular seal space is conveyed by vacuum tank 22 by feed liquor flexible pipe 20,
On vacuum tank 22 except water-supply-pipe 23, feed liquor flexible pipe 20 interface in addition to, pressure gauge 21 is come with, to ensure experimental bench system
It is stable.23 anterior pipeline of water-supply-pipe connects pump machine 25, and valve 24 is carried on pipeline, and controlling pump injects fluid in vacuum tank
Flow.Pump 25 is fetched water by water return pipeline from fluid reservoir 29.The fluid of test choma leakage is transported to collection liquid measure by flexible pipe 4
In cylinder 3, by contrasting the situation of change of fluid volume in graduated cylinder in the unit interval, choma leakage rate can be learnt.It is to be tested complete
Bi Hou, the valve 30 on water return pipeline is opened, the fluid in experimental provision is flowed back into fluid reservoir 29.
As shown in figure 1, centrifugal pump mouth ring experimental bench is mainly disposed on the experimental desk 1 of steel construction.Cavity 14 is connected by bolt 8
Connect and be placed on regulating platform 2, the height adjustable of regulating platform 2 is convenient to carry out centering regulation with equipment afterwards.Choma 12 will be tested,
Gland 10, screw 9, the second O-ring 13, the grade rotor part of plastics waterproofing bearing 5 assembles successively to be finished, then is uniformly put into cavity
Portion, front shroud 6 is covered, tightened by bolt 8.Connect first pressure table 16.
The position of fixed rotating speed instrument 19 simultaneously connects shaft coupling 18 and permanent magnetism cover 17, adjusts centering and axial location causes permanent magnetism cover
17 in the position that rational driving main shaft 11 rotates.The first motor 26 and centering are fixed in installation, to the first motor after installing
Axle shaft coupling carries out jiggering, and it is in good health to confirm that the operating of external rotor part is stablized.
Fluid media (medium) feed unit：Vacuum tank 22 is installed on support frame 27, and pipeline is all adopted in addition to the position being connected with pump
Connected with screw thread mouth, the connection of pump and pipeline is attached according to the size of pump from suitable flange.
Connecting fluid medium feed unit, choma test cell, the flexible pipe between leakage liquid collector unit.Check again for
Each valve (24,30) aperture, pressure gauge (16,21) registration, jiggering is carried out to rotor part, it is ensured that operation is accessible.Then
Start pump 25, slow Open valve 24, after fluid is full of vacuum tank 22 and cavity 14, whether have stream at observation liquid collecting graduated cylinder 3
Body flows out.When there is fluid outflow in liquid collecting graduated cylinder 3, illustrate hydraulically full inside whole device and discharge whole air, adjust
Valve 24 simultaneously observes the first pressure table 16 on vacuum tank 22 and cavity 14, second pressure gauge 21, adjusts the valve 22 on pipeline
Aperture make it that pressure gauge registration is stable, now, the flow of fluid in liquid collecting flexible pipe should be steady.Using manual time-keeping, and together
Fluid volume in Shi Jilu graduated cylinders 3, after the unit interval, fluid volume in graduated cylinder 3 is recorded again, repeatedly records numerical value, it is poor
Value is the leakage rate of liquid under the choma form in the unit interval.
After experiment is fully completed, the first motor, the second motor are closed, valve 30 is opened, makes in vacuum tank 14 and cavity
Fluid is flow back into fluid reservoir 29.Dismantle front shroud 6 so that rotor part can take out.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (9)
- A kind of 1. general-purpose centrifugal pump choma testing stand, it is characterised in that：Including choma test cell, fluid media (medium) feed unit, Leakage liquid collector unit and experimental desk, the fluid media (medium) feed unit, choma test cell and leakage liquid are collected Unit is arranged on the experimental desk, and the import of the fluid media (medium) feed unit and the annular seal space of the choma test cell connects It is logical, the outlet of the annular seal space of the choma test cell and the leakage liquid collector unit pipeline connection；The choma test cell includes cavity, front shroud, the main shaft for placing choma exemplar to be tested, gland and is used for The power drive unit of turning power is provided to cavity, the cavity side carries opening, and the front shroud is arranged on opening for cavity At mouthful, and affixed formation annular seal space is sealed therewith；The major axis horizontal is supported in the annular seal space, and the spindle outer wall is provided with For blocking the step of choma exemplar to be tested, the annular seal space is divided into front and rear two chamber by the step, and ante-chamber is before Cover plate side, back cavity are away from front shroud side；The cavity, which is provided with, is used for what is connected with the leakage liquid collector unit Upper water-guiding hole, the rear water-guiding hole for being respectively used to connect with fluid media (medium) feed unit, lower water-guiding hole, for cavity pressure before testing Preceding pressure tap and the rear pressure tap for cavity pressure after test；The gland is socketed at the step of the main shaft, described to be tested Choma exemplar is clipped between gland and the main shaft step surface；The output end phase of the cavity and the power drive unit Even；The fluid media (medium) feed unit includes the first motor, pump, vacuum tank, fluid reservoir and the installation for supporting vacuum tank Frame, first motor, pump are installed on the experimental desk, and the output end of first motor is connected with the drive end of pump, The outlet end of pump is connected by water-supply-pipe with vacuum tank, and the liquid feeding end of pump is connected by return pipe with fluid reservoir；The vacuum tank Connected by feed liquor flexible pipe with the back cavity of cavity；The leakage liquid collector unit includes liquid collecting graduated cylinder and liquid collecting flexible pipe, one end and the annular seal space of the liquid collecting flexible pipe Ante-chamber connection, the other end of the liquid collecting flexible pipe connects with liquid collecting graduated cylinder.
- A kind of 2. general-purpose centrifugal pump choma testing stand as claimed in claim 1, it is characterised in that：The drive device includes the Two motors, rotational speed meters, permanent magnetism cover and permanent magnet, second motor, rotational speed meters are coaxially mounted on the experimental desk, described The output shaft of second motor is connected with the input of the rotational speed meters, the output ends of the rotational speed meters by shaft coupling with it is described forever The installation end of magnetic cover is connected, and the permanent magnetism cover covers on the afterbody of cavity；The permanent magnet is embedded in the spindle outer wall positioned at back cavity, and The cavity, the rotational speed meters and the second motor coaxle is kept to set.
- A kind of 3. general-purpose centrifugal pump choma testing stand as claimed in claim 2, it is characterised in that：Equipped with tune on the experimental desk Platform is saved, annular seal space, rotational speed meters and the second motor, and the annular seal space, rotational speed meters and the second electricity are installed on the regulating platform Machine is coaxially arranged.
- A kind of 4. general-purpose centrifugal pump choma testing stand as claimed in claim 1, it is characterised in that：The water-supply-pipe and described time Water pipe is respectively provided with corresponding control valve.
- A kind of 5. general-purpose centrifugal pump choma testing stand as claimed in claim 1, it is characterised in that：The preceding pressure tap of the cavity It is radially arranged with rear pressure tap along cavity, and preceding pressure tap connects with the ante-chamber of cavity, rear pressure tap connects with the back cavity of cavity； The preceding pressure tap and the rear pressure tap are all furnished with the first pressure table for being used for determining front and rear cavity pressure difference.
- A kind of 6. general-purpose centrifugal pump choma testing stand as claimed in claim 5, it is characterised in that：The upper water-guiding hole of the cavity The upper front end of cavity is arranged on, the lower water-guiding hole of the cavity is arranged on the front lower portion of cavity；The rear end of the cavity is set The tail end face of cavity is divided into inner ring end face and outer shroud end face by the ring type deep trough of oriented intracavitary depression, the ring type deep trough, Water-guiding hole after the outer shroud end face is uniformly provided with 4, the rear water-guiding hole are connected by feed liquor flexible pipe with the vacuum tank；It is described Back-off permanent magnetism cover in ring type deep trough, the permanent magnet of the afterbody insertion of main shaft are contained in permanent magnetism cover inner chamber, ensure permanent magnet and permanent magnetism Cover forms electromagnetic induction.
- A kind of 7. general-purpose centrifugal pump choma testing stand as claimed in claim 5, it is characterised in that：It is tail of cavity body inner face, preceding The inner face of cover plate is respectively mounted plastics waterproofing bearing, and the main shaft both ends are horizontally arranged at annular seal space by plastics waterproofing bearing It is internal.
- A kind of 8. general-purpose centrifugal pump choma testing stand as claimed in claim 5, it is characterised in that：The inner face of the front shroud Embedded with the first O-ring seal.
- A kind of 9. general-purpose centrifugal pump choma testing stand as claimed in claim 7, it is characterised in that：The outer wall of the main shaft is provided with Three-level step, the external diameter of step is axially cumulative from front to back along main shaft, and the step surface of rearmost end is embedded with the second O-ring seal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107815.3A CN106678056B (en) | 2017-02-27 | 2017-02-27 | A kind of general-purpose centrifugal pump choma testing stand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710107815.3A CN106678056B (en) | 2017-02-27 | 2017-02-27 | A kind of general-purpose centrifugal pump choma testing stand |
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| CN106678056A CN106678056A (en) | 2017-05-17 |
| CN106678056B true CN106678056B (en) | 2018-01-16 |
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|---|---|---|---|---|
| CN109019137A (en) * | 2017-06-08 | 2018-12-18 | 江苏云瑞新型材料科技有限公司 | A kind of liftable rotating-table apparatus for coiling |
| CN107503953B (en) * | 2017-09-21 | 2024-07-05 | 深圳核心医疗科技股份有限公司 | Device and method for rapidly verifying blood pressure flow curve |
| CN108194385B (en) * | 2017-12-28 | 2024-03-26 | 浙江工业大学 | Device and method for testing wear performance of two-phase flow fluid machinery flow-through part |
| CN108106874B (en) * | 2018-01-12 | 2024-02-13 | 德阳科润电站成套设备有限公司 | Pressure testing platform of steam turbine jigger device |
| CN108678971B (en) * | 2018-07-17 | 2024-05-07 | 浙江工业大学 | Centrifugal pump mouth ring gap flow experimental device |
| CN116242560B (en) * | 2023-05-10 | 2023-08-04 | 兰州理工大学 | Centrifugal pump impeller sealing ring clearance leakage amount testing device and testing method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6074180A (en) * | 1996-05-03 | 2000-06-13 | Medquest Products, Inc. | Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method |
| CN1082628C (en) * | 1996-07-26 | 2002-04-10 | 株式会社横田制作所 | Self-priming type centrifugal pump |
| CN203500104U (en) * | 2013-09-06 | 2014-03-26 | 江苏滔海机械制造有限公司 | Small-flow-rate high-lift self-priming pump |
| CN204476784U (en) * | 2014-12-30 | 2015-07-15 | 米顿罗工业设备（上海）有限公司 | A kind of device of monitoring magnetic drive pump bearing abrasion condition |
| CN105424319B (en) * | 2015-12-29 | 2018-02-13 | 浙江工业大学 | Based on bionical submerged jet surface drag reduction test device |
| CN105952661A (en) * | 2016-06-15 | 2016-09-21 | 浙江工业大学 | Visual experiment device for centrifugal pump impeller |
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