CN108266387B - A kind of dredge pump Flow vibration experimental rig based on complex working condition - Google Patents
A kind of dredge pump Flow vibration experimental rig based on complex working condition Download PDFInfo
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- CN108266387B CN108266387B CN201810111910.5A CN201810111910A CN108266387B CN 108266387 B CN108266387 B CN 108266387B CN 201810111910 A CN201810111910 A CN 201810111910A CN 108266387 B CN108266387 B CN 108266387B
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- dredge pump
- mud
- test
- working condition
- complex working
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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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of dredge pump Flow vibration experimental rig based on complex working condition, including mud preprocessing system, slurry test system and mud after-treatment system, slurry test system includes test dredge pump, the inlet ductwork of test dredge pump is connect with mud preprocessing system, the export pipeline of test dredge pump is connect with mud after-treatment system, it tests and is successively arranged inlet pressure sensor and flowmeter in the inlet ductwork of dredge pump, it tests and is successively arranged outlet pressure sensor and flow control valve on the export pipeline of dredge pump, test dredge pump by shaft coupling and be connected with driving motor.It realizes and carries out dredge pump test of Vibration under different complex working conditions, study the influence to dredge pump vibration characteristics such as different operating conditions such as revolving speed, fluid media (medium) property, flow, simple in construction, easy to disassemble and assemble, test result is accurate, and analog tests dredge pump difference complex working condition.
Description
Technical field
The present invention relates to Dredging Technology fields, and in particular to a kind of dredge pump Flow vibration test based on complex working condition
Device.
Background technique
Dredge pump used in dredging work is developed from centrifugal water pump, is a kind of application of solid-liquid two-phase flow centrifugal pump
One of form, and dredger key equipment.The concentration of hydraulic mixture that dredge pump is pumped in dredging work is higher, has with muddy water very big
Difference, the former silt content are that several times of even several silt contents for decupling muddy water, high concentration slurries not only show non-newtonian flow
The characteristic of body, while the presence of a large amount of particle also will affect the flow behavior of liquid phase, the variation of the latter can influence in turn again
The movement of grain, flow passage components institute circumferentially distributed unevenness loaded can be directly contributed by pumping interior this UNSTEADY FLOW, be produced on dredge pump
Raw fluid exciting force is so as to cause dredge pump vibration.Vibrating, there is reduction pump shaft bearing service life, destruction dredge pump machine envelope, increase to set
Standby energy consumption generates noise, leads to a series of harm such as pump housing leakage and abrasion.Therefore, a kind of mud based on complex working condition is designed
Pumping Flow vibration experimental rig is very necessary for dredge pump optimization, scientific research etc..
Summary of the invention
The technical problem to be solved by the present invention is in view of the foregoing defects the prior art has, provide a kind of based on multiple
The dredge pump Flow vibration experimental rig of general labourer's condition is realized and carries out dredge pump test of Vibration under different complex working conditions, and research is not
Influence with operating condition such as revolving speed, fluid media (medium) property, flow etc. to dredge pump vibration characteristics, simple in construction, easy to disassemble and assemble, test knot
Fruit is accurate, and analog tests dredge pump difference complex working condition.
Used technical solution is the present invention to solve above-mentioned technical problem:
A kind of dredge pump Flow vibration experimental rig based on complex working condition, including mud preprocessing system, slurry test system
System and mud after-treatment system, slurry test system include test dredge pump, test inlet ductwork and the mud pre-treatment system of dredge pump
System connection, the export pipeline for testing dredge pump connect with mud after-treatment system, test be successively arranged in the inlet ductwork of dredge pump into
Mouth pressure sensor and flowmeter, test and are successively arranged outlet pressure sensor and flow control valve on the export pipeline of dredge pump,
It tests dredge pump and driving motor is connected with by shaft coupling；
Wherein, mud preprocessing system includes blending tank and mud pit, and blending tank is set to the top of mud pit, mud pit
It is connect with the inlet ductwork of test dredge pump, mud after-treatment system includes drying blending tank, dries the import and test of blending tank
The export pipeline of dredge pump connects, and dries and is connected with circulating pump B between the outlet of blending tank and mud pit, will be dried by circulating pump B
Silt in dry-mixing tank after drying sends mud pit back to.
According to above-mentioned technical proposal, mud pit is connected with bypass circulation line, and bypass circulation line is equipped with circulating pump A.
According to above-mentioned technical proposal, shaft coupling is equipped with pump shaft vibration-detecting instrument.
According to above-mentioned technical proposal, rotary speed torque sensor is successively arranged on shaft coupling.
According to above-mentioned technical proposal, driving motor is connected with frequency converter.
According to above-mentioned technical proposal, the outlet for drying blending tank is connected with tee tube, and a port of tee tube is by following
Ring pump B is connect with mud pit, another port of tee tube, which is connected with, deposits sand basin, and tee tube is equipped with triple valve.
It according to above-mentioned technical proposal, dries and multiple waterproof infrared heat wave ducts is circumferentially distributed on the inner wall of blending tank, use
In baking test sand.
According to above-mentioned technical proposal, each waterproof infrared heat wave duct is respectively connected with fixed frame, and the both ends of fixed frame pass through
Bolt is connect with the inner wall of drying blending tank.
According to above-mentioned technical proposal, fixed frame be equipped with two symmetrical angle bar, the two of waterproof infrared heat wave duct
End is connected and fixed with two angle bar respectively.
According to above-mentioned technical proposal, the number of waterproof infrared heat wave duct is 6, and 6 waterproof infrared heat wave ducts are opposite
Drying blending tank central point is mutually 60 °.
The invention has the following advantages:
A kind of dredge pump Flow vibration experimental rig based on complex working condition of the invention, by adjusting flow control valve come mould
The operating condition of quasi- different flow simulates fluid Jie of different nature with sand by the way that test of different nature is added in blending tank
Matter, realize under different complex working conditions carry out dredge pump test of Vibration, study different operating conditions for example revolving speed, fluid media (medium) property,
The influence to dredge pump vibration characteristics such as flow, it is simple that there is this experimental rig pipeline to be arranged, convenient for disassembly and assembly, can be added to test with husky
The advantages of to recycle, test result is accurate, and analog tests dredge pump difference complex working condition.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the dredge pump Flow vibration experimental rig in the embodiment of the present invention based on complex working condition；
Fig. 2 is the structural schematic diagram that blending tank is dried in the embodiment of the present invention；
In figure, 1- blending tank, 2- flowmeter, 3- test dredge pump, 4- outlet pressure sensor, 5- flow control valve, 6- pump
Shaft vibration detector, 7- rotary speed torque sensor, 8- driving motor, 9- export pipeline, 10- frequency converter, 11- mud pit, by 12-
Logical circulation line, 13- circulating pump A, 14- mud circulation line, 15- inlet ductwork, 16- inlet pressure sensor, 17- vibration inspection
Instrument is surveyed, 18- circulating pump B, 19- shaft coupling, 20- pedestal, 21- tee tube, 22- drying blending tank, 23- triple valve, 24- prevents bright pink
Outside line heat wave pipe, 25- deposit sand basin, 26- fixed frame, 27- bolt A, 28- angle bar, 29- bolt B.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
The dredge pump Flow vibration based on complex working condition shown in referring to Fig.1~Fig. 2, in one embodiment provided by the invention
Experimental rig, including mud preprocessing system, slurry test system and mud after-treatment system, slurry test system include test
The inlet ductwork 15 of dredge pump 3, test dredge pump 3 is connect with mud preprocessing system, after the export pipeline 9 and mud of testing dredge pump 3
Processing system connection, tests and is successively arranged inlet pressure sensor 16 and flowmeter 2 in the inlet ductwork 15 of dredge pump 3, tests mud
It is successively arranged outlet pressure sensor 4 and flow control valve 5 on the export pipeline 9 of pump 3, difference is simulated by flow control valve 5
The operating condition of flow is respectively used to measurement test dredge pump 3 by inlet pressure sensor 16, flowmeter 2 and outlet pressure sensor 4
The pressure and flow of entrance and the pressure for testing 3 exit of dredge pump, test dredge pump 3 are connected with driving electricity by shaft coupling 19
Machine 8；
Wherein, mud preprocessing system includes blending tank 1 and mud pit 11, and blending tank 1 is set to the top of mud pit 11,
Mud pit 11 is connect with the inlet ductwork 15 of test dredge pump 3, and mud after-treatment system includes drying blending tank 22, dries blending tank
22 import is connect with the export pipeline 9 of test dredge pump 3, is dried and is connected with circulation between the outlet and mud pit 11 of blending tank 22
B18 is pumped, mud pit 11 back to is sent the silt dried after drying in blending tank 22 by circulating pump B18.
Further, mud pit 11 is connected with bypass circulation line 12, and bypass circulation line 12 is equipped with circulating pump A13.
Further, bypass circulation line 12 refers to that the side wall of mud pit 11 is connected to by pipeline with 11 bottom of mud pit,
Or be connected between the adjacent wall of mud pit 11, bypass circulation line 12 is for flowing the mud in mud pit 11 sufficiently
Come, prevents mud natural sedimentation effect during test from characteristics of mud being caused to change, to influence test result.
Further, shaft coupling 19 is equipped with pump shaft vibration-detecting instrument 6.
Further, rotary speed torque sensor 7 is successively arranged on shaft coupling 19.
Further, driving motor 8 is connected with frequency converter 10, and the output power of driving motor 8 is adjusted by frequency converter 10.
Further, pump shaft vibration-detecting instrument 6 is set to close to one end of test dredge pump 3 on shaft coupling 19, for measuring
The Vibration Condition of 3 pump shaft of dredge pump is tested, rotary speed torque sensor 7 is set to one end on shaft coupling 19 close to driving motor 8, uses
In measurement 8 revolving speed of driving motor and output power.
Further, the outlet for drying blending tank 22 is connected with tee tube 21, and a port of tee tube 21 passes through circulation
Pump B18 is connect with mud pit 11, another port of tee tube 21, which is connected with, deposits sand basin 25, and tee tube 21 is equipped with triple valve
23；Regulating three-way valve 23 is connected to drying blending tank 22 with mud pit 11 during test, and is followed by circulating pump B18 and mud
Endless tube road 14 sends the test slush pump dried in blending tank 22 in mud pit 11 back to, passes through drying blending tank 22 after the test
Baking test is husky, and regulating three-way valve 23 makes to dry blending tank 22 be connected to sand basin 25 is deposited, to dry after will test use
Beach volleyball, which is put into, deposits in sand basin 25.
Further, depositing the setting of sand basin 25 height should be lower than drying blending tank 22 so that the test sand after drying can be
It is drained into and deposits in sand basin 25 automatically under potential energy effect.
Further, it dries and multiple waterproof infrared heat wave ducts 24 is circumferentially distributed on the inner wall of blending tank, for drying
Test sand.
Further, each waterproof infrared heat wave duct 24 is respectively connected with fixed frame 26, and the both ends of fixed frame 26 pass through spiral shell
Bolt is connect with the inner wall of drying blending tank.
Further, fixed frame 26 is equipped with two symmetrical angle bar 28, the both ends of waterproof infrared heat wave duct 24
It is connected and fixed respectively with two angle bar 28.
Further, the number of waterproof infrared heat wave duct 24 is 6, and 6 waterproof infrared heat wave ducts 24 are opposite to dry
Blending tank central point is mutually 60 °.
The working principle of the invention:
As shown in Figure 1, the dredge pump Flow vibration experimental rig based on complex working condition of the embodiment of the present invention, including before mud
Processing system, pilot system and mud after-treatment system.The mud storage system is by blending tank 1 and mud connected to it
Stock tank 12 forms, and pilot system is by test pump inlet ductwork 15, test pump export pipeline 9, dredge pump driving motor 8 and 20 groups of pedestal
At.Mud after-treatment system by drying blending tank 22, tee tube 21, deposit sand basin 25 and form.
Mud pit 11 in mud preprocessing system is provided with the circulating pump A13 being arranged in bypass circulation line 12 and pipeline
For making the mud in mud pit sufficiently flow, prevent mud natural sedimentation effect during test from characteristics of mud being caused to be sent out
Changing, to influence test result.
Inlet pressure sensor 16 and flowmeter 2 are provided in test dredge pump inlet ductwork 15 in pilot system for surveying
The pressure and flow of amount test dredge pump entrance.Outlet pressure sensor 4 is provided on test dredge pump export pipeline 9 to be used to measure
Test dredge pump outlet pressure.The flow that flow control valve 5 is used to adjust test dredge pump 3 is provided on test dredge pump export pipeline 9,
To simulate the operating condition for deviateing declared working condition.Test dredge pump 3 is connect with driving motor 8 by shaft coupling 19, shaft coupling 19
One end close to test dredge pump 3 is provided with vibration-detecting instrument, for measuring the Vibration Condition of test 3 pump shaft of dredge pump；Shaft coupling 19
One end close to driving motor 8 is provided with rotary speed torque sensor 7, for detecting driving motor revolving speed and output power.Driving
Motor 8 is connect with frequency converter 10, to adjust 8 output power of driving motor by frequency converter 10.
It is provided with above 22 inner wall of drying blending tank in mud after-treatment system mutual relative to drying blending tank central point
Separately 60 ° of six waterproof infrared heat wave ducts 24 are husky for baking test.Drying 22 exit of blending tank is provided with three
Siphunculus 21, regulating three-way valve 23 is connected to drying blending tank 22 with mud pit 11 during test, and passes through circulating pump B18 and mud
Slurry circulation line 14 sends the test slush pump dried in blending tank 22 in mud pit 11 back to.Pass through drying mixing after the test
Tank 22 baking test is husky, and regulating three-way valve 23 makes to dry blending tank 22 be connected to sand basin 25 is deposited, to dry after will try
It tests to be put into beach volleyball and deposit in sand basin 25.Drying blending tank 22 should be lower than so that the test after drying is husky by depositing the setting of sand basin 25 height
It can be drained into and deposit in sand basin 25 automatically under potential energy effect.
As shown in Fig. 2, being provided with central symmetry in drying blending tank central point in each other above drying mixing top tank structure
It is husky for baking test every 60 ° of six waterproof infrared heat wave ducts 24.Waterproof infrared heat wave duct 24 by bolt A27 and
Angle bar 28 is fixed on the midpoint of 26 each edge of fixed frame, distribution in a center of symmetry.Fixed frame 26 is by being located at its six angles position
The bolt B 29 set is fixed on above drying mixing top tank structure.
Above is only presently preferred embodiments of the present invention, and of course, the scope of rights of the present invention cannot be limited by this,
Therefore according to equivalence changes made by scope of the present invention patent, still belong to protection scope of the present invention.
Claims (10)
1. a kind of dredge pump Flow vibration experimental rig based on complex working condition, which is characterized in that including mud preprocessing system, mud
Pilot system and mud after-treatment system are starched, slurry test system includes test dredge pump, tests the inlet ductwork and mud of dredge pump
Preprocessing system connection, the export pipeline for testing dredge pump connect with mud after-treatment system, test in the inlet ductwork of dredge pump according to
It is secondary to be equipped with inlet pressure sensor and flowmeter, it tests and is successively arranged outlet pressure sensor and flow on the export pipeline of dredge pump
Regulating valve tests dredge pump by shaft coupling and is connected with driving motor；
Wherein, mud preprocessing system includes blending tank and mud pit, and blending tank is set to the top of mud pit, mud pit and examination
The inlet ductwork connection of dredge pump is tested, mud after-treatment system includes drying blending tank, dries import and the test dredge pump of blending tank
Export pipeline connection, dry and be connected with circulating pump B between the outlet of blending tank and mud pit, by circulating pump B will drying it is mixed
It closes the silt in tank after drying and sends mud pit back to.
2. the dredge pump Flow vibration experimental rig according to claim 1 based on complex working condition, which is characterized in that mud pit
It is connected with bypass circulation line, bypass circulation line is equipped with circulating pump A.
3. the dredge pump Flow vibration experimental rig according to claim 1 based on complex working condition, which is characterized in that shaft coupling
It is equipped with pump shaft vibration-detecting instrument.
4. the dredge pump Flow vibration experimental rig according to claim 1 based on complex working condition, which is characterized in that shaft coupling
On be successively arranged rotary speed torque sensor.
5. the dredge pump Flow vibration experimental rig according to claim 1 based on complex working condition, which is characterized in that driving electricity
Machine is connected with frequency converter.
6. the dredge pump Flow vibration experimental rig according to claim 1 based on complex working condition, which is characterized in that drying is mixed
The outlet for closing tank is connected with tee tube, and a port of tee tube is connect by circulating pump B with mud pit, tee tube another
Port, which is connected with, deposits sand basin, and tee tube is equipped with triple valve.
7. the dredge pump Flow vibration experimental rig according to claim 1 based on complex working condition, which is characterized in that drying is mixed
It closes and multiple waterproof infrared heat wave ducts is circumferentially distributed on the inner wall of tank, it is husky for baking test.
8. the dredge pump Flow vibration experimental rig according to claim 7 based on complex working condition, which is characterized in that Mei Gefang
Bright pink outside line heat wave pipe is respectively connected with fixed frame, and the both ends of fixed frame are connect by bolt with the inner wall for drying blending tank.
9. the dredge pump Flow vibration experimental rig according to claim 8 based on complex working condition, which is characterized in that fixed frame
Two symmetrical angle bar are equipped with, the both ends of waterproof infrared heat wave duct are connected and fixed with two angle bar respectively.
10. the dredge pump Flow vibration experimental rig according to claim 7 based on complex working condition, which is characterized in that waterproof
The number of infrared heat wave duct is 6, and the opposite drying blending tank central point of 6 waterproof infrared heat wave ducts is mutually 60 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111910.5A CN108266387B (en) | 2018-02-05 | 2018-02-05 | A kind of dredge pump Flow vibration experimental rig based on complex working condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111910.5A CN108266387B (en) | 2018-02-05 | 2018-02-05 | A kind of dredge pump Flow vibration experimental rig based on complex working condition |
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| CN108266387A CN108266387A (en) | 2018-07-10 |
| CN108266387B true CN108266387B (en) | 2019-07-23 |
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| CN201810111910.5A Expired - Fee Related CN108266387B (en) | 2018-02-05 | 2018-02-05 | A kind of dredge pump Flow vibration experimental rig based on complex working condition |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1344943A1 (en) * | 1985-12-25 | 1987-10-15 | Всесоюзный Научно-Исследовательский И Проектно-Изыскательский Институт Трубопроводного Гидротранспорта | Method of preparing pulp pump for tests |
| CN102562562A (en) * | 2011-11-30 | 2012-07-11 | 江苏大学 | Novel slurry pump test bench capable of adjusting inhaled slurry concentration |
| CN103410743A (en) * | 2013-05-23 | 2013-11-27 | 江苏大学 | Durability testing device and testing method of solid-liquid two-phase flow pump |
| CN107605761A (en) * | 2017-10-25 | 2018-01-19 | 江苏大学镇江流体工程装备技术研究院 | A kind of solid-liquid two-phase flow Pulp pump wear test platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453257B1 (en) * | 1998-12-18 | 2002-09-17 | Larson Testing Laboratories | Apparatus for testing the ability of a filter to filter contaminants |
-
2018
- 2018-02-05 CN CN201810111910.5A patent/CN108266387B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1344943A1 (en) * | 1985-12-25 | 1987-10-15 | Всесоюзный Научно-Исследовательский И Проектно-Изыскательский Институт Трубопроводного Гидротранспорта | Method of preparing pulp pump for tests |
| CN102562562A (en) * | 2011-11-30 | 2012-07-11 | 江苏大学 | Novel slurry pump test bench capable of adjusting inhaled slurry concentration |
| CN103410743A (en) * | 2013-05-23 | 2013-11-27 | 江苏大学 | Durability testing device and testing method of solid-liquid two-phase flow pump |
| CN107605761A (en) * | 2017-10-25 | 2018-01-19 | 江苏大学镇江流体工程装备技术研究院 | A kind of solid-liquid two-phase flow Pulp pump wear test platform |
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| CN108266387A (en) | 2018-07-10 |
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Granted publication date: 20190723 Termination date: 20200205 |